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v1.3.1
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4
.gitignore
vendored
4
.gitignore
vendored
@ -1,5 +1,6 @@
|
||||
*.1.dylib
|
||||
*.a
|
||||
*.dSYM
|
||||
*.log
|
||||
*.o
|
||||
*.so.1
|
||||
@ -8,7 +9,10 @@
|
||||
/autom4te.cache
|
||||
/config.log
|
||||
/config.status
|
||||
/configure~
|
||||
/doc/pdfio.epub
|
||||
/examples/code128
|
||||
/examples/md2pdf
|
||||
/Makefile
|
||||
/packages
|
||||
/pdfio.pc
|
||||
|
||||
74
CHANGES.md
74
CHANGES.md
@ -2,16 +2,38 @@ Changes in PDFio
|
||||
================
|
||||
|
||||
|
||||
v1.3.1 (August 5, 2024)
|
||||
-----------------------
|
||||
v1.4.0 - YYYY-MM-DD
|
||||
-------------------
|
||||
|
||||
- Added new `pdfioDictGetKey` and `pdfioDictGetNumPairs` APIs (Issue #63)
|
||||
- Added new `pdfioArrayRemove` and `pdfioDictClear` APIs (Issue #74)
|
||||
- Added new `pdfioFileCreateNameObj` and `pdfioObjGetName` APIs for creating and
|
||||
getting name object values (Issue #76)
|
||||
- Updated documentation (Issue #78)
|
||||
- Updated `pdfioContentTextMeasure` to support measuring PDF base fonts created
|
||||
with `pdfioFileCreateFontObjFromBase` (Issue #84)
|
||||
- Fixed reading of PDF files whose trailer is missing a newline (Issue #80)
|
||||
- Fixed builds with some versions of VC++ (Issue #81)
|
||||
|
||||
|
||||
v1.3.2 - 2024-08-15
|
||||
-------------------
|
||||
|
||||
- Added some more sanity checks to the TrueType font reader.
|
||||
- Updated documentation (Issue #77)
|
||||
- Fixed an issue when opening certain encrypted PDF files (Issue #62)
|
||||
|
||||
|
||||
v1.3.1 - 2024-08-05
|
||||
-------------------
|
||||
|
||||
- CVE 2024-42358: Updated TrueType font reader to avoid large memory
|
||||
allocations.
|
||||
- Fixed some documentation errors and added examples (Issue #68, Issue #69)
|
||||
|
||||
|
||||
v1.3.0 (June 28, 2024)
|
||||
----------------------
|
||||
v1.3.0 - 2024-06-28
|
||||
-------------------
|
||||
|
||||
- Added `pdfioFileGetCatalog` API for accessing the root/catalog object of a
|
||||
PDF file (Issue #67)
|
||||
@ -21,8 +43,8 @@ v1.3.0 (June 28, 2024)
|
||||
- Optimized string pool code.
|
||||
|
||||
|
||||
v1.2.0 (January 24, 2024)
|
||||
-------------------------
|
||||
v1.2.0 - 2024-01-24
|
||||
-------------------
|
||||
|
||||
- Now use autoconf to configure the PDFio sources (Issue #54)
|
||||
- Added `pdfioFileCreateNumberObj` and `pdfioFileCreateStringObj` functions
|
||||
@ -45,8 +67,8 @@ v1.2.0 (January 24, 2024)
|
||||
65536 in the xref table (Issue #59)
|
||||
|
||||
|
||||
v1.1.4 (December 3, 2023)
|
||||
-------------------------
|
||||
v1.1.4 - 2023-12-03
|
||||
-------------------
|
||||
|
||||
- Fixed detection of encrypted strings that are too short (Issue #52)
|
||||
- Fixed a TrueType CMAP decoding bug.
|
||||
@ -54,15 +76,15 @@ v1.1.4 (December 3, 2023)
|
||||
- Added a ToUnicode map for Unicode text to support text copying.
|
||||
|
||||
|
||||
v1.1.3 (November 15, 2023)
|
||||
--------------------------
|
||||
v1.1.3 - 2023-11-15
|
||||
-------------------
|
||||
|
||||
- Fixed Unicode font support (Issue #16)
|
||||
- Fixed missing initializer for 40-bit RC4 encryption (Issue #51)
|
||||
|
||||
|
||||
v1.1.2 (October 10, 2023)
|
||||
-------------------------
|
||||
v1.1.2 - 2023-10-10
|
||||
-------------------
|
||||
|
||||
- Updated `pdfioContentSetDashPattern` to support setting a solid (0 length)
|
||||
dash pattern (Issue #41)
|
||||
@ -77,15 +99,15 @@ v1.1.2 (October 10, 2023)
|
||||
(Issue #48)
|
||||
|
||||
|
||||
v1.1.1 (March 20, 2023)
|
||||
-----------------------
|
||||
v1.1.1 - 2023-03-20
|
||||
-------------------
|
||||
|
||||
- CVE-2023-28428: Fixed a potential denial-of-service with corrupt PDF files.
|
||||
- Fixed a few build issues.
|
||||
|
||||
|
||||
v1.1.0 (February 6, 2023)
|
||||
-------------------------
|
||||
v1.1.0 - 2023-02-06
|
||||
-------------------
|
||||
|
||||
- CVE-2023-24808: Fixed a potential denial-of-service with corrupt PDF files.
|
||||
- Added `pdfioFileCreateTemporary` function (Issue #29)
|
||||
@ -99,28 +121,28 @@ v1.1.0 (February 6, 2023)
|
||||
- Fixed `pdfioContentMatrixRotate` function.
|
||||
|
||||
|
||||
v1.0.1 (March 2, 2022)
|
||||
----------------------
|
||||
v1.0.1 - 2022-03-02
|
||||
-------------------
|
||||
|
||||
- Added missing `pdfioPageGetNumStreams` and `pdfioPageOpenStream` functions.
|
||||
- Added demo pdfiototext utility.
|
||||
- Fixed bug in `pdfioStreamGetToken`.
|
||||
|
||||
|
||||
v1.0.0 (December 14, 2021)
|
||||
--------------------------
|
||||
v1.0.0 - 2021-12-14
|
||||
-------------------
|
||||
|
||||
- First stable release.
|
||||
|
||||
|
||||
v1.0rc1 (November 30, 2021)
|
||||
---------------------------
|
||||
v1.0rc1 - 2021-11-30
|
||||
--------------------
|
||||
|
||||
- Fixed a few stack/buffer overflow bugs discovered via fuzzing.
|
||||
|
||||
|
||||
v1.0b2 (November 7, 2021)
|
||||
-------------------------
|
||||
v1.0b2 - 2021-11-07
|
||||
-------------------
|
||||
|
||||
- Added `pdfioFileCreateOutput` API to support streaming output of PDF
|
||||
(Issue #21)
|
||||
@ -131,7 +153,7 @@ v1.0b2 (November 7, 2021)
|
||||
- Fixed some issues identified by a Coverity scan.
|
||||
|
||||
|
||||
v1.0b1 (August 30, 2021)
|
||||
------------------------
|
||||
v1.0b1 - 2021-08-30
|
||||
-------------------
|
||||
|
||||
- Initial release
|
||||
|
||||
18
EXAMPLES.md
Normal file
18
EXAMPLES.md
Normal file
@ -0,0 +1,18 @@
|
||||
PDFio Examples
|
||||
==============
|
||||
|
||||
The "examples" subdirectory contains example code showing how to do different
|
||||
things with PDFio.
|
||||
|
||||
|
||||
code128.c
|
||||
---------
|
||||
|
||||
This example shows how to embed and use a barcode font.
|
||||
|
||||
|
||||
md2pdf.c
|
||||
--------
|
||||
|
||||
This example shows how to generate pages with multiple fonts, embedded images,
|
||||
and headers and footers.
|
||||
@ -258,5 +258,5 @@ clang:
|
||||
|
||||
# Analyze code using Cppcheck <http://cppcheck.sourceforge.net>
|
||||
cppcheck:
|
||||
cppcheck $(CPPFLAGS) --template=gcc --addon=cert.py --suppressions-list=.cppcheck $(OBJS:.o=.c) 2>cppcheck.log
|
||||
cppcheck $(CPPFLAGS) --template=gcc --suppressions-list=.cppcheck $(OBJS:.o=.c) 2>cppcheck.log
|
||||
test -s cppcheck.log && (echo "$(GHA_ERROR)Cppcheck detected issues."; echo ""; cat cppcheck.log; exit 1) || exit 0
|
||||
|
||||
24
configure
vendored
24
configure
vendored
@ -1,6 +1,6 @@
|
||||
#! /bin/sh
|
||||
# Guess values for system-dependent variables and create Makefiles.
|
||||
# Generated by GNU Autoconf 2.71 for pdfio 1.3.1.
|
||||
# Generated by GNU Autoconf 2.71 for pdfio 1.4.0.
|
||||
#
|
||||
# Report bugs to <https://github.com/michaelrsweet/pdfio/issues>.
|
||||
#
|
||||
@ -610,8 +610,8 @@ MAKEFLAGS=
|
||||
# Identity of this package.
|
||||
PACKAGE_NAME='pdfio'
|
||||
PACKAGE_TARNAME='pdfio'
|
||||
PACKAGE_VERSION='1.3.1'
|
||||
PACKAGE_STRING='pdfio 1.3.1'
|
||||
PACKAGE_VERSION='1.4.0'
|
||||
PACKAGE_STRING='pdfio 1.4.0'
|
||||
PACKAGE_BUGREPORT='https://github.com/michaelrsweet/pdfio/issues'
|
||||
PACKAGE_URL='https://www.msweet.org/pdfio'
|
||||
|
||||
@ -1293,7 +1293,7 @@ if test "$ac_init_help" = "long"; then
|
||||
# Omit some internal or obsolete options to make the list less imposing.
|
||||
# This message is too long to be a string in the A/UX 3.1 sh.
|
||||
cat <<_ACEOF
|
||||
\`configure' configures pdfio 1.3.1 to adapt to many kinds of systems.
|
||||
\`configure' configures pdfio 1.4.0 to adapt to many kinds of systems.
|
||||
|
||||
Usage: $0 [OPTION]... [VAR=VALUE]...
|
||||
|
||||
@ -1359,7 +1359,7 @@ fi
|
||||
|
||||
if test -n "$ac_init_help"; then
|
||||
case $ac_init_help in
|
||||
short | recursive ) echo "Configuration of pdfio 1.3.1:";;
|
||||
short | recursive ) echo "Configuration of pdfio 1.4.0:";;
|
||||
esac
|
||||
cat <<\_ACEOF
|
||||
|
||||
@ -1456,7 +1456,7 @@ fi
|
||||
test -n "$ac_init_help" && exit $ac_status
|
||||
if $ac_init_version; then
|
||||
cat <<\_ACEOF
|
||||
pdfio configure 1.3.1
|
||||
pdfio configure 1.4.0
|
||||
generated by GNU Autoconf 2.71
|
||||
|
||||
Copyright (C) 2021 Free Software Foundation, Inc.
|
||||
@ -1612,7 +1612,7 @@ cat >config.log <<_ACEOF
|
||||
This file contains any messages produced by compilers while
|
||||
running configure, to aid debugging if configure makes a mistake.
|
||||
|
||||
It was created by pdfio $as_me 1.3.1, which was
|
||||
It was created by pdfio $as_me 1.4.0, which was
|
||||
generated by GNU Autoconf 2.71. Invocation command line was
|
||||
|
||||
$ $0$ac_configure_args_raw
|
||||
@ -2368,9 +2368,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
|
||||
|
||||
|
||||
|
||||
PDFIO_VERSION="1.3.1"
|
||||
PDFIO_VERSION_MAJOR="`echo 1.3.1 | awk -F. '{print $1}'`"
|
||||
PDFIO_VERSION_MINOR="`echo 1.3.1 | awk -F. '{printf("%d\n",$2);}'`"
|
||||
PDFIO_VERSION="1.4.0"
|
||||
PDFIO_VERSION_MAJOR="`echo 1.4.0 | awk -F. '{print $1}'`"
|
||||
PDFIO_VERSION_MINOR="`echo 1.4.0 | awk -F. '{printf("%d\n",$2);}'`"
|
||||
|
||||
|
||||
|
||||
@ -4935,7 +4935,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
|
||||
# report actual input values of CONFIG_FILES etc. instead of their
|
||||
# values after options handling.
|
||||
ac_log="
|
||||
This file was extended by pdfio $as_me 1.3.1, which was
|
||||
This file was extended by pdfio $as_me 1.4.0, which was
|
||||
generated by GNU Autoconf 2.71. Invocation command line was
|
||||
|
||||
CONFIG_FILES = $CONFIG_FILES
|
||||
@ -4991,7 +4991,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
|
||||
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
|
||||
ac_cs_config='$ac_cs_config_escaped'
|
||||
ac_cs_version="\\
|
||||
pdfio config.status 1.3.1
|
||||
pdfio config.status 1.4.0
|
||||
configured by $0, generated by GNU Autoconf 2.71,
|
||||
with options \\"\$ac_cs_config\\"
|
||||
|
||||
|
||||
@ -21,7 +21,7 @@ AC_PREREQ([2.70])
|
||||
|
||||
|
||||
dnl Package name and version...
|
||||
AC_INIT([pdfio], [1.3.1], [https://github.com/michaelrsweet/pdfio/issues], [pdfio], [https://www.msweet.org/pdfio])
|
||||
AC_INIT([pdfio], [1.4.0], [https://github.com/michaelrsweet/pdfio/issues], [pdfio], [https://www.msweet.org/pdfio])
|
||||
|
||||
PDFIO_VERSION="AC_PACKAGE_VERSION"
|
||||
PDFIO_VERSION_MAJOR="`echo AC_PACKAGE_VERSION | awk -F. '{print $1}'`"
|
||||
|
||||
301
doc/pdfio.3
301
doc/pdfio.3
@ -1,4 +1,4 @@
|
||||
.TH pdfio 3 "pdf read/write library" "2024-08-05" "pdf read/write library"
|
||||
.TH pdfio 3 "pdf read/write library" "2024-10-25" "pdf read/write library"
|
||||
.SH NAME
|
||||
pdfio \- pdf read/write library
|
||||
.SH Introduction
|
||||
@ -138,6 +138,121 @@ PDFio also provides PDF content helper functions for producing PDF content that
|
||||
|
||||
#include <pdfio\-content.h>
|
||||
.fi
|
||||
.SS Understanding PDF Files
|
||||
.PP
|
||||
A PDF file provides data and commands for displaying pages of graphics and text, and is structured in a way that allows it to be displayed in the same way across multiple devices and platforms. The following is a PDF which shows "Hello, World!" on one page:
|
||||
.nf
|
||||
|
||||
%PDF\-1.0 % Header starts here
|
||||
%âãÏÓ
|
||||
1 0 obj % Body starts here
|
||||
<<
|
||||
/Kids [2 0 R]
|
||||
/Count 1
|
||||
/Type /Pages
|
||||
.fi
|
||||
.PP
|
||||
> endobj 2 0 obj <
|
||||
/Rotate 0
|
||||
/Parent 1 0 R
|
||||
/Resources 3 0 R
|
||||
/MediaBox [0 0 612 792]
|
||||
/Contents [4 0 R]/Type /Page
|
||||
endobj 3 0 obj <
|
||||
/Font
|
||||
<<
|
||||
/F0
|
||||
<<
|
||||
/BaseFont /Times\-Italic
|
||||
/Subtype /Type1
|
||||
/Type /Font
|
||||
> > endobj 4 0 obj <
|
||||
/Length 65
|
||||
stream
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
0. 0. 1. 50. 700. cm BT /F0 36. Tf (Hello, World!) Tj ET endstream endobj 5 0 obj << /Pages 1 0 R /Type /Catalog
|
||||
|
||||
|
||||
.PP
|
||||
> endobj xref % Cross\-reference table starts here 0 6 0000000000 65535 f 0000000015 00000 n 0000000074 00000 n 0000000192 00000 n 0000000291 00000 n 0000000409 00000 n trailer % Trailer starts here << /Root 5 0 R /Size 6 > startxref 459 %%EOF
|
||||
.nf
|
||||
|
||||
.fi
|
||||
|
||||
.PP
|
||||
Header
|
||||
.PP
|
||||
The header is the first line of a PDF file that specifies the version of the PDF format that has been used, for example %PDF\-1.0\.
|
||||
.PP
|
||||
Since PDF files almost always contain binary data, they can become corrupted if line endings are changed. For example, if the file is transferred using FTP in text mode or is edited in Notepad on Windows. To allow legacy file transfer programs to determine that the file is binary, the PDF standard recommends including some bytes with character codes higher than 127 in the header, for example:
|
||||
.nf
|
||||
|
||||
%âãÏÓ
|
||||
.fi
|
||||
.PP
|
||||
The percent sign indicates a comment line while the other few bytes are arbitrary character codes in excess of 127. So, the whole header in our example is:
|
||||
.nf
|
||||
|
||||
%PDF\-1.0
|
||||
%âãÏÓ
|
||||
.fi
|
||||
.PP
|
||||
Body
|
||||
.PP
|
||||
The file body consists of a sequence of objects, each preceded by an object number, generation number, and the obj keyword on one line, and followed by the endobj keyword on another. For example:
|
||||
.nf
|
||||
|
||||
1 0 obj
|
||||
<<
|
||||
/Kids [2 0 R]
|
||||
/Count 1
|
||||
/Type /Pages
|
||||
.fi
|
||||
.PP
|
||||
> endobj
|
||||
.nf
|
||||
|
||||
.fi
|
||||
|
||||
.PP
|
||||
In this example, the object number is 1 and the generation number is 0, meaning it is the first version of the object. The content for object 1 is between the initial 1 0 obj and trailing endobj lines. In this case, the content is the dictionary <</Kids [2 0 R] /Count 1 /Type /Pages>>\.
|
||||
.PP
|
||||
Cross\-Reference Table
|
||||
.PP
|
||||
The cross\-reference table lists the byte offset of each object in the file body. This allows random access to objects, meaning they don't have to be read in order. Objects that are not used are never read, making the process efficient. Operations like counting the number of pages in a PDF document are fast, even in large files.
|
||||
.PP
|
||||
Each object has an object number and a generation number. Generation numbers are used when a cross\-reference table entry is reused. For simplicity, we will assume generation numbers to be always zero and ignore them. The cross\-reference table consists of a header line that indicates the number of entries, a free entry line for object 0, and a line for each of the objects in the file body. For example:
|
||||
.nf
|
||||
|
||||
0 6 % Six entries in table, starting at 0
|
||||
0000000000 65535 f % Free entry for object 0
|
||||
0000000015 00000 n % Object 1 is at byte offset 15
|
||||
0000000074 00000 n % Object 2 is at byte offset 74
|
||||
0000000192 00000 n % etc...
|
||||
0000000291 00000 n
|
||||
0000000409 00000 n % Object 5 is at byte offset 409
|
||||
.fi
|
||||
.PP
|
||||
Trailer
|
||||
.PP
|
||||
The first line of the trailer is just the trailer keyword. This is followed by the trailer dictionary which contains at least the /Size entry specifying the number of entries in the cross\-reference table and the /Root entry which references the object for the document catalog which is the root element of the graph of objects in the body.
|
||||
.PP
|
||||
There follows a line with just the startxref keyword, a line with a single number specifying the byte offset of the start of the cross\-reference table within the file, and then the line %%EOF which signals the end of the PDF file.
|
||||
.nf
|
||||
|
||||
trailer % Trailer keyword
|
||||
<< % The trailer dictinonary
|
||||
/Root 5 0 R
|
||||
/Size 6
|
||||
.fi
|
||||
.PP
|
||||
> startxref % startxref keyword 459 % Byte offset of cross\-reference table %%EOF % End\-of\-file marker
|
||||
.nf
|
||||
|
||||
.fi
|
||||
|
||||
.SH API Overview
|
||||
.PP
|
||||
PDFio exposes several types:
|
||||
@ -218,7 +333,90 @@ Each PDF file contains one or more pages. The pdfioFileGetNumPages function retu
|
||||
}
|
||||
.fi
|
||||
.PP
|
||||
Each page is represented by a "page tree" object (what pdfioFileGetPage returns) that specifies information about the page and one or more "content" objects that contain the images, fonts, text, and graphics that appear on the page. Use the pdfioPageGetNumStreams and pdfioPageOpenStream functions to access the content streams for each page.
|
||||
Each page is represented by a "page tree" object (what pdfioFileGetPage returns) that specifies information about the page and one or more "content" objects that contain the images, fonts, text, and graphics that appear on the page. Use the pdfioPageGetNumStreams and pdfioPageOpenStream functions to access the content streams for each page, and pdfioObjGetDict to get the associated page object dictionary. For example, if you want to display the media and crop boxes for a given page:
|
||||
.nf
|
||||
|
||||
pdfio_file_t *pdf; // PDF file
|
||||
size_t i; // Looping var
|
||||
size_t count; // Number of pages
|
||||
pdfio_obj_t *page; // Current page
|
||||
pdfio_dict_t *dict; // Current page dictionary
|
||||
pdfio_array_t *media_box; // MediaBox array
|
||||
double media_values[4]; // MediaBox values
|
||||
pdfio_array_t *crop_box; // CropBox array
|
||||
double crop_values[4]; // CropBox values
|
||||
|
||||
// Iterate the pages in the PDF file
|
||||
for (i = 0, count = pdfioFileGetNumPages(pdf); i < count; i ++)
|
||||
{
|
||||
page = pdfioFileGetPage(pdf, i);
|
||||
dict = pdfioObjGetDict(page);
|
||||
|
||||
media_box = pdfioDictGetArray(dict, "MediaBox");
|
||||
media_values[0] = pdfioArrayGetNumber(media_box, 0);
|
||||
media_values[1] = pdfioArrayGetNumber(media_box, 1);
|
||||
media_values[2] = pdfioArrayGetNumber(media_box, 2);
|
||||
media_values[3] = pdfioArrayGetNumber(media_box, 3);
|
||||
|
||||
crop_box = pdfioDictGetArray(dict, "CropBox");
|
||||
crop_values[0] = pdfioArrayGetNumber(crop_box, 0);
|
||||
crop_values[1] = pdfioArrayGetNumber(crop_box, 1);
|
||||
crop_values[2] = pdfioArrayGetNumber(crop_box, 2);
|
||||
crop_values[3] = pdfioArrayGetNumber(crop_box, 3);
|
||||
|
||||
printf("Page %u: MediaBox=[%g %g %g %g], CropBox=[%g %g %g %g]\\n",
|
||||
(unsigned)(i + 1),
|
||||
media_values[0], media_values[1], media_values[2], media_values[3],
|
||||
crop_values[0], crop_values[1], crop_values[2], crop_values[3]);
|
||||
}
|
||||
.fi
|
||||
.PP
|
||||
Page object dictionaries have several (mostly optional) key/value pairs, including:
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Annots": An array of annotation dictionaries for the page; use pdfioDictGetArray to get the array
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"CropBox": The crop box as an array of four numbers for the left, bottom, right, and top coordinates of the target media; use pdfioDictGetArray to get a pointer to the array of numbers
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Dur": The number of seconds the page should be displayed; use pdfioDictGetNumber to get the page duration value
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Group": The dictionary of transparency group values for the page; use pdfioDictGetDict to get a pointer to the resources dictionary
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"LastModified": The date and time when this page was last modified; use pdfioDictGetDate to get the Unix time_t value
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Parent": The parent page tree node object for this page; use pdfioDictGetObj to get a pointer to the object
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"MediaBox": The media box as an array of four numbers for the left, bottom, right, and top coordinates of the target media; use pdfioDictGetArray to get a pointer to the array of numbers
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Resources": The dictionary of resources for the page; use pdfioDictGetDict to get a pointer to the resources dictionary
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Rotate": A number indicating the number of degrees of counter\-clockwise rotation to apply to the page when viewing; use pdfioDictGetNumber to get the rotation angle
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Thumb": A thumbnail image object for the page; use pdfioDictGetObj to get a pointer to the thumbnail image object
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
"Trans": The page transition dictionary; use pdfioDictGetDict to get a pointer to the dictionary
|
||||
|
||||
|
||||
.PP
|
||||
The pdfioFileClose function closes a PDF file and frees all memory that was used for it:
|
||||
.nf
|
||||
@ -1404,6 +1602,15 @@ pdfio_valtype_t pdfioArrayGetType (
|
||||
size_t n
|
||||
);
|
||||
.fi
|
||||
.SS pdfioArrayRemove
|
||||
Remove an array entry.
|
||||
.PP
|
||||
.nf
|
||||
bool pdfioArrayRemove (
|
||||
pdfio_array_t *a,
|
||||
size_t n
|
||||
);
|
||||
.fi
|
||||
.SS pdfioContentClip
|
||||
Clip output to the current path.
|
||||
.PP
|
||||
@ -1984,6 +2191,15 @@ bool pdfioContentTextShowf (
|
||||
...
|
||||
);
|
||||
.fi
|
||||
.SS pdfioDictClear
|
||||
Remove a key/value pair from a dictionary.
|
||||
.PP
|
||||
.nf
|
||||
bool pdfioDictClear (
|
||||
pdfio_dict_t *dict,
|
||||
const char *key
|
||||
);
|
||||
.fi
|
||||
.SS pdfioDictCopy
|
||||
Copy a dictionary to a PDF file.
|
||||
.PP
|
||||
@ -2047,6 +2263,15 @@ pdfio_dict_t * pdfioDictGetDict (
|
||||
const char *key
|
||||
);
|
||||
.fi
|
||||
.SS pdfioDictGetKey
|
||||
Get the key for the specified pair.
|
||||
.PP
|
||||
.nf
|
||||
const char * pdfioDictGetKey (
|
||||
pdfio_dict_t *dict,
|
||||
size_t n
|
||||
);
|
||||
.fi
|
||||
.SS pdfioDictGetName
|
||||
Get a key name value from a dictionary.
|
||||
.PP
|
||||
@ -2056,6 +2281,14 @@ const char * pdfioDictGetName (
|
||||
const char *key
|
||||
);
|
||||
.fi
|
||||
.SS pdfioDictGetNumPairs
|
||||
Get the number of key/value pairs in a dictionary.
|
||||
.PP
|
||||
.nf
|
||||
size_t pdfioDictGetNumPairs (
|
||||
pdfio_dict_t *dict
|
||||
);
|
||||
.fi
|
||||
.SS pdfioDictGetNumber
|
||||
Get a key number value from a dictionary.
|
||||
.PP
|
||||
@ -2417,6 +2650,18 @@ Note: Currently PNG support is limited to grayscale, RGB, or indexed files
|
||||
without interlacing or alpha. Transparency (masking) based on color/index
|
||||
.IP 5
|
||||
is supported.
|
||||
.SS pdfioFileCreateNameObj
|
||||
Create a new object in a PDF file containing a name.
|
||||
.PP
|
||||
.nf
|
||||
pdfio_obj_t * pdfioFileCreateNameObj (
|
||||
pdfio_file_t *pdf,
|
||||
const char *name
|
||||
);
|
||||
.fi
|
||||
.PP
|
||||
This function creates a new object with a name value in a PDF file.
|
||||
You must call \fIpdfioObjClose\fR to write the object to the file.
|
||||
.SS pdfioFileCreateNumberObj
|
||||
Create a new object in a PDF file containing a number.
|
||||
.PP
|
||||
@ -2853,6 +3098,14 @@ size_t pdfioObjGetLength (
|
||||
pdfio_obj_t *obj
|
||||
);
|
||||
.fi
|
||||
.SS pdfioObjGetName
|
||||
Get the name value associated with an object.
|
||||
.PP
|
||||
.nf
|
||||
const char * pdfioObjGetName (
|
||||
pdfio_obj_t *obj
|
||||
);
|
||||
.fi
|
||||
.SS pdfioObjGetNumber
|
||||
Get the object's number.
|
||||
.PP
|
||||
@ -2869,6 +3122,29 @@ const char * pdfioObjGetSubtype (
|
||||
pdfio_obj_t *obj
|
||||
);
|
||||
.fi
|
||||
.PP
|
||||
This function returns an object's PDF subtype name, if any. Common subtype
|
||||
names include:
|
||||
.PP
|
||||
.IP \(bu 5
|
||||
"CIDFontType0": A CID Type0 font
|
||||
.IP \(bu 5
|
||||
"CIDFontType2": A CID TrueType font
|
||||
.IP \(bu 5
|
||||
"Image": An image or image mask
|
||||
.IP \(bu 5
|
||||
"Form": A fillable form
|
||||
.IP \(bu 5
|
||||
"OpenType": An OpenType font
|
||||
.IP \(bu 5
|
||||
"Type0": A composite font
|
||||
.IP \(bu 5
|
||||
"Type1": A PostScript Type1 font
|
||||
.IP \(bu 5
|
||||
"Type3": A PDF Type3 font
|
||||
.IP \(bu 5
|
||||
"TrueType": A TrueType font</li>
|
||||
</ul>
|
||||
.SS pdfioObjGetType
|
||||
Get an object's type.
|
||||
.PP
|
||||
@ -2877,6 +3153,27 @@ const char * pdfioObjGetType (
|
||||
pdfio_obj_t *obj
|
||||
);
|
||||
.fi
|
||||
.PP
|
||||
This function returns an object's PDF type name, if any. Common type names
|
||||
include:
|
||||
.PP
|
||||
.IP \(bu 5
|
||||
"CMap": A character map for composite fonts
|
||||
.IP \(bu 5
|
||||
"Font": An embedded font (\fIpdfioObjGetSubtype\fR will tell you the
|
||||
font format)
|
||||
.IP \(bu 5
|
||||
"FontDescriptor": A font descriptor
|
||||
.IP \(bu 5
|
||||
"Page": A (visible) page
|
||||
.IP \(bu 5
|
||||
"Pages": A page tree node
|
||||
.IP \(bu 5
|
||||
"Template": An invisible template page
|
||||
.IP \(bu 5
|
||||
"XObject": An image, image mask, or form (\fIpdfioObjGetSubtype\fR will
|
||||
tell you which)</li>
|
||||
</ul>
|
||||
.SS pdfioObjOpenStream
|
||||
Open an object's (data) stream for reading.
|
||||
.PP
|
||||
|
||||
297
doc/pdfio.html
297
doc/pdfio.html
@ -1,13 +1,13 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en-US">
|
||||
<head>
|
||||
<title>PDFio Programming Manual v1.3.0</title>
|
||||
<title>PDFio Programming Manual v1.4.0</title>
|
||||
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
|
||||
<meta name="generator" content="codedoc v3.7">
|
||||
<meta name="author" content="Michael R Sweet">
|
||||
<meta name="language" content="en-US">
|
||||
<meta name="copyright" content="Copyright © 2021-2024 by Michael R Sweet">
|
||||
<meta name="version" content="1.3.0">
|
||||
<meta name="version" content="1.4.0">
|
||||
<style type="text/css"><!--
|
||||
body {
|
||||
background: white;
|
||||
@ -251,7 +251,7 @@ span.string {
|
||||
<body>
|
||||
<div class="header">
|
||||
<p><img class="title" src="pdfio-512.png"></p>
|
||||
<h1 class="title">PDFio Programming Manual v1.3.0</h1>
|
||||
<h1 class="title">PDFio Programming Manual v1.4.0</h1>
|
||||
<p>Michael R Sweet</p>
|
||||
<p>Copyright © 2021-2024 by Michael R Sweet</p>
|
||||
</div>
|
||||
@ -265,6 +265,7 @@ span.string {
|
||||
<li><a href="#xcode-project">Xcode Project</a></li>
|
||||
<li><a href="#detecting-pdfio">Detecting PDFio</a></li>
|
||||
<li><a href="#header-files">Header Files</a></li>
|
||||
<li><a href="#understanding-pdf-files">Understanding PDF Files</a></li>
|
||||
</ul></li>
|
||||
<li><a href="#api-overview">API Overview</a><ul class="subcontents">
|
||||
<li><a href="#reading-pdf-files">Reading PDF Files</a></li>
|
||||
@ -305,6 +306,7 @@ span.string {
|
||||
<li><a href="#pdfioArrayGetSize">pdfioArrayGetSize</a></li>
|
||||
<li><a href="#pdfioArrayGetString">pdfioArrayGetString</a></li>
|
||||
<li><a href="#pdfioArrayGetType">pdfioArrayGetType</a></li>
|
||||
<li><a href="#pdfioArrayRemove">pdfioArrayRemove</a></li>
|
||||
<li><a href="#pdfioContentClip">pdfioContentClip</a></li>
|
||||
<li><a href="#pdfioContentDrawImage">pdfioContentDrawImage</a></li>
|
||||
<li><a href="#pdfioContentFill">pdfioContentFill</a></li>
|
||||
@ -361,6 +363,7 @@ span.string {
|
||||
<li><a href="#pdfioContentTextShow">pdfioContentTextShow</a></li>
|
||||
<li><a href="#pdfioContentTextShowJustified">pdfioContentTextShowJustified</a></li>
|
||||
<li><a href="#pdfioContentTextShowf">pdfioContentTextShowf</a></li>
|
||||
<li><a href="#pdfioDictClear">pdfioDictClear</a></li>
|
||||
<li><a href="#pdfioDictCopy">pdfioDictCopy</a></li>
|
||||
<li><a href="#pdfioDictCreate">pdfioDictCreate</a></li>
|
||||
<li><a href="#pdfioDictGetArray">pdfioDictGetArray</a></li>
|
||||
@ -368,7 +371,9 @@ span.string {
|
||||
<li><a href="#pdfioDictGetBoolean">pdfioDictGetBoolean</a></li>
|
||||
<li><a href="#pdfioDictGetDate">pdfioDictGetDate</a></li>
|
||||
<li><a href="#pdfioDictGetDict">pdfioDictGetDict</a></li>
|
||||
<li><a href="#pdfioDictGetKey">pdfioDictGetKey</a></li>
|
||||
<li><a href="#pdfioDictGetName">pdfioDictGetName</a></li>
|
||||
<li><a href="#pdfioDictGetNumPairs">pdfioDictGetNumPairs</a></li>
|
||||
<li><a href="#pdfioDictGetNumber">pdfioDictGetNumber</a></li>
|
||||
<li><a href="#pdfioDictGetObj">pdfioDictGetObj</a></li>
|
||||
<li><a href="#pdfioDictGetRect">pdfioDictGetRect</a></li>
|
||||
@ -395,6 +400,7 @@ span.string {
|
||||
<li><a href="#pdfioFileCreateICCObjFromFile">pdfioFileCreateICCObjFromFile</a></li>
|
||||
<li><a href="#pdfioFileCreateImageObjFromData">pdfioFileCreateImageObjFromData</a></li>
|
||||
<li><a href="#pdfioFileCreateImageObjFromFile">pdfioFileCreateImageObjFromFile</a></li>
|
||||
<li><a href="#pdfioFileCreateNameObj">pdfioFileCreateNameObj</a></li>
|
||||
<li><a href="#pdfioFileCreateNumberObj">pdfioFileCreateNumberObj</a></li>
|
||||
<li><a href="#pdfioFileCreateObj">pdfioFileCreateObj</a></li>
|
||||
<li><a href="#pdfioFileCreateOutput">pdfioFileCreateOutput</a></li>
|
||||
@ -436,6 +442,7 @@ span.string {
|
||||
<li><a href="#pdfioObjGetDict">pdfioObjGetDict</a></li>
|
||||
<li><a href="#pdfioObjGetGeneration">pdfioObjGetGeneration</a></li>
|
||||
<li><a href="#pdfioObjGetLength">pdfioObjGetLength</a></li>
|
||||
<li><a href="#pdfioObjGetName">pdfioObjGetName</a></li>
|
||||
<li><a href="#pdfioObjGetNumber">pdfioObjGetNumber</a></li>
|
||||
<li><a href="#pdfioObjGetSubtype">pdfioObjGetSubtype</a></li>
|
||||
<li><a href="#pdfioObjGetType">pdfioObjGetType</a></li>
|
||||
@ -572,6 +579,104 @@ LIBS += `pkg-config --libs pdfio`
|
||||
<p>PDFio also provides <a href="#pdf-content-helper-functions">PDF content helper functions</a> for producing PDF content that are defined in a separate header file:</p>
|
||||
<pre><code class="language-c"><span class="directive">#include <pdfio-content.h></span>
|
||||
</code></pre>
|
||||
<h3 class="title" id="understanding-pdf-files">Understanding PDF Files</h3>
|
||||
<p>A PDF file provides data and commands for displaying pages of graphics and text, and is structured in a way that allows it to be displayed in the same way across multiple devices and platforms. The following is a PDF which shows "Hello, World!" on one page:</p>
|
||||
<pre><code>%PDF-1.0 % Header starts here
|
||||
%âãÏÓ
|
||||
1 0 obj % Body starts here
|
||||
<<
|
||||
/Kids [2 0 R]
|
||||
/Count 1
|
||||
/Type /Pages
|
||||
</code></pre>
|
||||
<blockquote>
|
||||
<p>> endobj 2 0 obj <a href="<
|
||||
/Rotate 0
|
||||
/Parent 1 0 R
|
||||
/Resources 3 0 R
|
||||
/MediaBox [0 0 612 792]
|
||||
/Contents [4 0 R]/Type /Page
|
||||
"><
|
||||
/Rotate 0
|
||||
/Parent 1 0 R
|
||||
/Resources 3 0 R
|
||||
/MediaBox [0 0 612 792]
|
||||
/Contents [4 0 R]/Type /Page
|
||||
</a> endobj 3 0 obj <a href="<
|
||||
/Font
|
||||
<<
|
||||
/F0
|
||||
<<
|
||||
/BaseFont /Times-Italic
|
||||
/Subtype /Type1
|
||||
/Type /Font
|
||||
"><
|
||||
/Font
|
||||
<<
|
||||
/F0
|
||||
<<
|
||||
/BaseFont /Times-Italic
|
||||
/Subtype /Type1
|
||||
/Type /Font
|
||||
</a> > > endobj 4 0 obj <a href="<
|
||||
/Length 65
|
||||
"><
|
||||
/Length 65
|
||||
</a> stream</p>
|
||||
</blockquote>
|
||||
<ol>
|
||||
<li><p>0. 0. 1. 50. 700. cm BT /F0 36. Tf (Hello, World!) Tj ET endstream endobj 5 0 obj << /Pages 1 0 R /Type /Catalog</p>
|
||||
</li>
|
||||
</ol>
|
||||
<blockquote>
|
||||
<p>> endobj xref % Cross-reference table starts here 0 6 0000000000 65535 f 0000000015 00000 n 0000000074 00000 n 0000000192 00000 n 0000000291 00000 n 0000000409 00000 n trailer % Trailer starts here << /Root 5 0 R /Size 6 > startxref 459 %%EOF</p>
|
||||
<pre><code></code></pre>
|
||||
</blockquote>
|
||||
<h4 id="header">Header</h4>
|
||||
<p>The header is the first line of a PDF file that specifies the version of the PDF format that has been used, for example <code>%PDF-1.0</code>.</p>
|
||||
<p>Since PDF files almost always contain binary data, they can become corrupted if line endings are changed. For example, if the file is transferred using FTP in text mode or is edited in Notepad on Windows. To allow legacy file transfer programs to determine that the file is binary, the PDF standard recommends including some bytes with character codes higher than 127 in the header, for example:</p>
|
||||
<pre><code>%âãÏÓ
|
||||
</code></pre>
|
||||
<p>The percent sign indicates a comment line while the other few bytes are arbitrary character codes in excess of 127. So, the whole header in our example is:</p>
|
||||
<pre><code>%PDF-1.0
|
||||
%âãÏÓ
|
||||
</code></pre>
|
||||
<h4 id="body">Body</h4>
|
||||
<p>The file body consists of a sequence of objects, each preceded by an object number, generation number, and the obj keyword on one line, and followed by the endobj keyword on another. For example:</p>
|
||||
<pre><code>1 0 obj
|
||||
<<
|
||||
/Kids [2 0 R]
|
||||
/Count 1
|
||||
/Type /Pages
|
||||
</code></pre>
|
||||
<blockquote>
|
||||
<p>> endobj</p>
|
||||
<pre><code></code></pre>
|
||||
</blockquote>
|
||||
<p>In this example, the object number is 1 and the generation number is 0, meaning it is the first version of the object. The content for object 1 is between the initial <code>1 0 obj</code> and trailing <code>endobj</code> lines. In this case, the content is the dictionary <code><</Kids [2 0 R] /Count 1 /Type /Pages>></code>.</p>
|
||||
<h4 id="cross-reference-table">Cross-Reference Table</h4>
|
||||
<p>The cross-reference table lists the byte offset of each object in the file body. This allows random access to objects, meaning they don't have to be read in order. Objects that are not used are never read, making the process efficient. Operations like counting the number of pages in a PDF document are fast, even in large files.</p>
|
||||
<p>Each object has an object number and a generation number. Generation numbers are used when a cross-reference table entry is reused. For simplicity, we will assume generation numbers to be always zero and ignore them. The cross-reference table consists of a header line that indicates the number of entries, a free entry line for object 0, and a line for each of the objects in the file body. For example:</p>
|
||||
<pre><code>0 6 % Six entries in table, starting at 0
|
||||
0000000000 65535 f % Free entry for object 0
|
||||
0000000015 00000 n % Object 1 is at byte offset 15
|
||||
0000000074 00000 n % Object 2 is at byte offset 74
|
||||
0000000192 00000 n % etc...
|
||||
0000000291 00000 n
|
||||
0000000409 00000 n % Object 5 is at byte offset 409
|
||||
</code></pre>
|
||||
<h4 id="trailer">Trailer</h4>
|
||||
<p>The first line of the trailer is just the <code>trailer</code> keyword. This is followed by the trailer dictionary which contains at least the <code>/Size</code> entry specifying the number of entries in the cross-reference table and the <code>/Root</code> entry which references the object for the document catalog which is the root element of the graph of objects in the body.</p>
|
||||
<p>There follows a line with just the <code>startxref</code> keyword, a line with a single number specifying the byte offset of the start of the cross-reference table within the file, and then the line <code>%%EOF</code> which signals the end of the PDF file.</p>
|
||||
<pre><code>trailer % Trailer keyword
|
||||
<< % The trailer dictinonary
|
||||
/Root 5 0 R
|
||||
/Size 6
|
||||
</code></pre>
|
||||
<blockquote>
|
||||
<p>> startxref % startxref keyword 459 % Byte offset of cross-reference table %%EOF % End-of-file marker</p>
|
||||
<pre><code></code></pre>
|
||||
</blockquote>
|
||||
<h2 class="title" id="api-overview">API Overview</h2>
|
||||
<p>PDFio exposes several types:</p>
|
||||
<ul>
|
||||
@ -628,7 +733,66 @@ pdfio_obj_t *page; <span class="comment">// Current page</span>
|
||||
<span class="comment">// do something with page</span>
|
||||
}
|
||||
</code></pre>
|
||||
<p>Each page is represented by a "page tree" object (what <a href="#pdfioFileGetPage"><code>pdfioFileGetPage</code></a> returns) that specifies information about the page and one or more "content" objects that contain the images, fonts, text, and graphics that appear on the page. Use the <a href="#pdfioPageGetNumStreams"><code>pdfioPageGetNumStreams</code></a> and <a href="#pdfioPageOpenStream"><code>pdfioPageOpenStream</code></a> functions to access the content streams for each page.</p>
|
||||
<p>Each page is represented by a "page tree" object (what <a href="#pdfioFileGetPage"><code>pdfioFileGetPage</code></a> returns) that specifies information about the page and one or more "content" objects that contain the images, fonts, text, and graphics that appear on the page. Use the <a href="#pdfioPageGetNumStreams"><code>pdfioPageGetNumStreams</code></a> and <a href="#pdfioPageOpenStream"><code>pdfioPageOpenStream</code></a> functions to access the content streams for each page, and <a href="#pdfioObjGetDict"><code>pdfioObjGetDict</code></a> to get the associated page object dictionary. For example, if you want to display the media and crop boxes for a given page:</p>
|
||||
<pre><code class="language-c">pdfio_file_t *pdf; <span class="comment">// PDF file</span>
|
||||
size_t i; <span class="comment">// Looping var</span>
|
||||
size_t count; <span class="comment">// Number of pages</span>
|
||||
pdfio_obj_t *page; <span class="comment">// Current page</span>
|
||||
pdfio_dict_t *dict; <span class="comment">// Current page dictionary</span>
|
||||
pdfio_array_t *media_box; <span class="comment">// MediaBox array</span>
|
||||
<span class="reserved">double</span> media_values[<span class="number">4</span>]; <span class="comment">// MediaBox values</span>
|
||||
pdfio_array_t *crop_box; <span class="comment">// CropBox array</span>
|
||||
<span class="reserved">double</span> crop_values[<span class="number">4</span>]; <span class="comment">// CropBox values</span>
|
||||
|
||||
<span class="comment">// Iterate the pages in the PDF file</span>
|
||||
<span class="reserved">for</span> (i = <span class="number">0</span>, count = pdfioFileGetNumPages(pdf); i < count; i ++)
|
||||
{
|
||||
page = pdfioFileGetPage(pdf, i);
|
||||
dict = pdfioObjGetDict(page);
|
||||
|
||||
media_box = pdfioDictGetArray(dict, <span class="string">"MediaBox"</span>);
|
||||
media_values[<span class="number">0</span>] = pdfioArrayGetNumber(media_box, <span class="number">0</span>);
|
||||
media_values[<span class="number">1</span>] = pdfioArrayGetNumber(media_box, <span class="number">1</span>);
|
||||
media_values[<span class="number">2</span>] = pdfioArrayGetNumber(media_box, <span class="number">2</span>);
|
||||
media_values[<span class="number">3</span>] = pdfioArrayGetNumber(media_box, <span class="number">3</span>);
|
||||
|
||||
crop_box = pdfioDictGetArray(dict, <span class="string">"CropBox"</span>);
|
||||
crop_values[<span class="number">0</span>] = pdfioArrayGetNumber(crop_box, <span class="number">0</span>);
|
||||
crop_values[<span class="number">1</span>] = pdfioArrayGetNumber(crop_box, <span class="number">1</span>);
|
||||
crop_values[<span class="number">2</span>] = pdfioArrayGetNumber(crop_box, <span class="number">2</span>);
|
||||
crop_values[<span class="number">3</span>] = pdfioArrayGetNumber(crop_box, <span class="number">3</span>);
|
||||
|
||||
printf(<span class="string">"Page %u: MediaBox=[%g %g %g %g], CropBox=[%g %g %g %g]\n"</span>,
|
||||
(<span class="reserved">unsigned</span>)(i + <span class="number">1</span>),
|
||||
media_values[<span class="number">0</span>], media_values[<span class="number">1</span>], media_values[<span class="number">2</span>], media_values[<span class="number">3</span>],
|
||||
crop_values[<span class="number">0</span>], crop_values[<span class="number">1</span>], crop_values[<span class="number">2</span>], crop_values[<span class="number">3</span>]);
|
||||
}
|
||||
</code></pre>
|
||||
<p>Page object dictionaries have several (mostly optional) key/value pairs, including:</p>
|
||||
<ul>
|
||||
<li><p>"Annots": An array of annotation dictionaries for the page; use <a href="#pdfioDictGetArray"><code>pdfioDictGetArray</code></a> to get the array</p>
|
||||
</li>
|
||||
<li><p>"CropBox": The crop box as an array of four numbers for the left, bottom, right, and top coordinates of the target media; use <a href="#pdfioDictGetArray"><code>pdfioDictGetArray</code></a> to get a pointer to the array of numbers</p>
|
||||
</li>
|
||||
<li><p>"Dur": The number of seconds the page should be displayed; use <a href="#pdfioDictGetNumber"><code>pdfioDictGetNumber</code></a> to get the page duration value</p>
|
||||
</li>
|
||||
<li><p>"Group": The dictionary of transparency group values for the page; use <a href="#pdfioDictGetDict"><code>pdfioDictGetDict</code></a> to get a pointer to the resources dictionary</p>
|
||||
</li>
|
||||
<li><p>"LastModified": The date and time when this page was last modified; use <a href="#pdfioDictGetDate"><code>pdfioDictGetDate</code></a> to get the Unix <code>time_t</code> value</p>
|
||||
</li>
|
||||
<li><p>"Parent": The parent page tree node object for this page; use <a href="#pdfioDictGetObj"><code>pdfioDictGetObj</code></a> to get a pointer to the object</p>
|
||||
</li>
|
||||
<li><p>"MediaBox": The media box as an array of four numbers for the left, bottom, right, and top coordinates of the target media; use <a href="#pdfioDictGetArray"><code>pdfioDictGetArray</code></a> to get a pointer to the array of numbers</p>
|
||||
</li>
|
||||
<li><p>"Resources": The dictionary of resources for the page; use <a href="#pdfioDictGetDict"><code>pdfioDictGetDict</code></a> to get a pointer to the resources dictionary</p>
|
||||
</li>
|
||||
<li><p>"Rotate": A number indicating the number of degrees of counter-clockwise rotation to apply to the page when viewing; use <a href="#pdfioDictGetNumber"><code>pdfioDictGetNumber</code></a> to get the rotation angle</p>
|
||||
</li>
|
||||
<li><p>"Thumb": A thumbnail image object for the page; use <a href="#pdfioDictGetObj"><code>pdfioDictGetObj</code></a> to get a pointer to the thumbnail image object</p>
|
||||
</li>
|
||||
<li><p>"Trans": The page transition dictionary; use <a href="#pdfioDictGetDict"><code>pdfioDictGetDict</code></a> to get a pointer to the dictionary</p>
|
||||
</li>
|
||||
</ul>
|
||||
<p>The <a href="#pdfioFileClose"><code>pdfioFileClose</code></a> function closes a PDF file and frees all memory that was used for it:</p>
|
||||
<pre><code class="language-c">pdfioFileClose(pdf);
|
||||
</code></pre>
|
||||
@ -1443,6 +1607,19 @@ size_t pdfioArrayGetSize(<a href="#pdfio_array_t">pdfio_array_t</a> *a);</p>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Value type</p>
|
||||
<h3 class="function"><a id="pdfioArrayRemove">pdfioArrayRemove</a></h3>
|
||||
<p class="description">Remove an array entry.</p>
|
||||
<p class="code">
|
||||
<span class="reserved">bool</span> pdfioArrayRemove(<a href="#pdfio_array_t">pdfio_array_t</a> *a, size_t n);</p>
|
||||
<h4 class="parameters">Parameters</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>a</th>
|
||||
<td class="description">Array</td></tr>
|
||||
<tr><th>n</th>
|
||||
<td class="description">Index</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description"><code>true</code> on success, <code>false</code> otherwise</p>
|
||||
<h3 class="function"><a id="pdfioContentClip">pdfioContentClip</a></h3>
|
||||
<p class="description">Clip output to the current path.</p>
|
||||
<p class="code">
|
||||
@ -2297,6 +2474,19 @@ argument specifies an array of UTF-8 encoded strings.</p>
|
||||
<p class="discussion">This function shows some formatted text in a PDF content stream. The
|
||||
"unicode" argument specifies that the current font maps to full Unicode.
|
||||
The "format" argument specifies a UTF-8 encoded <code>printf</code>-style format string.</p>
|
||||
<h3 class="function"><a id="pdfioDictClear">pdfioDictClear</a></h3>
|
||||
<p class="description">Remove a key/value pair from a dictionary.</p>
|
||||
<p class="code">
|
||||
<span class="reserved">bool</span> pdfioDictClear(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict, <span class="reserved">const</span> <span class="reserved">char</span> *key);</p>
|
||||
<h4 class="parameters">Parameters</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>dict</th>
|
||||
<td class="description">Dictionary</td></tr>
|
||||
<tr><th>key</th>
|
||||
<td class="description">Key</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description"><code>true</code> if cleared, <code>false</code> otherwise</p>
|
||||
<h3 class="function"><a id="pdfioDictCopy">pdfioDictCopy</a></h3>
|
||||
<p class="description">Copy a dictionary to a PDF file.</p>
|
||||
<p class="code">
|
||||
@ -2388,6 +2578,19 @@ time_t pdfioDictGetDate(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict, <span cl
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Value</p>
|
||||
<h3 class="function"><a id="pdfioDictGetKey">pdfioDictGetKey</a></h3>
|
||||
<p class="description">Get the key for the specified pair.</p>
|
||||
<p class="code">
|
||||
<span class="reserved">const</span> <span class="reserved">char</span> *pdfioDictGetKey(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict, size_t n);</p>
|
||||
<h4 class="parameters">Parameters</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>dict</th>
|
||||
<td class="description">Dictionary</td></tr>
|
||||
<tr><th>n</th>
|
||||
<td class="description">Pair index (<code>0</code>-based)</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Key for specified pair</p>
|
||||
<h3 class="function"><a id="pdfioDictGetName">pdfioDictGetName</a></h3>
|
||||
<p class="description">Get a key name value from a dictionary.</p>
|
||||
<p class="code">
|
||||
@ -2401,6 +2604,17 @@ time_t pdfioDictGetDate(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict, <span cl
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Value</p>
|
||||
<h3 class="function"><a id="pdfioDictGetNumPairs">pdfioDictGetNumPairs</a></h3>
|
||||
<p class="description">Get the number of key/value pairs in a dictionary.</p>
|
||||
<p class="code">
|
||||
size_t pdfioDictGetNumPairs(<a href="#pdfio_dict_t">pdfio_dict_t</a> *dict);</p>
|
||||
<h4 class="parameters">Parameters</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>dict</th>
|
||||
<td class="description">Dictionary</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Number of pairs</p>
|
||||
<h3 class="function"><a id="pdfioDictGetNumber">pdfioDictGetNumber</a></h3>
|
||||
<p class="description">Get a key number value from a dictionary.</p>
|
||||
<p class="code">
|
||||
@ -2888,6 +3102,22 @@ image on the page.<br>
|
||||
Note: Currently PNG support is limited to grayscale, RGB, or indexed files
|
||||
without interlacing or alpha. Transparency (masking) based on color/index
|
||||
is supported.</blockquote>
|
||||
<h3 class="function"><a id="pdfioFileCreateNameObj">pdfioFileCreateNameObj</a></h3>
|
||||
<p class="description">Create a new object in a PDF file containing a name.</p>
|
||||
<p class="code">
|
||||
<a href="#pdfio_obj_t">pdfio_obj_t</a> *pdfioFileCreateNameObj(<a href="#pdfio_file_t">pdfio_file_t</a> *pdf, <span class="reserved">const</span> <span class="reserved">char</span> *name);</p>
|
||||
<h4 class="parameters">Parameters</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>pdf</th>
|
||||
<td class="description">PDF file</td></tr>
|
||||
<tr><th>name</th>
|
||||
<td class="description">Name value</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">New object</p>
|
||||
<h4 class="discussion">Discussion</h4>
|
||||
<p class="discussion">This function creates a new object with a name value in a PDF file.
|
||||
You must call <a href="#pdfioObjClose"><code>pdfioObjClose</code></a> to write the object to the file.</p>
|
||||
<h3 class="function"><a id="pdfioFileCreateNumberObj">pdfioFileCreateNumberObj</a></h3>
|
||||
<p class="description">Create a new object in a PDF file containing a number.</p>
|
||||
<p class="code">
|
||||
@ -3469,6 +3699,17 @@ size_t pdfioObjGetLength(<a href="#pdfio_obj_t">pdfio_obj_t</a> *obj);</p>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Length in bytes or <code>0</code> for none</p>
|
||||
<h3 class="function"><a id="pdfioObjGetName">pdfioObjGetName</a></h3>
|
||||
<p class="description">Get the name value associated with an object.</p>
|
||||
<p class="code">
|
||||
<span class="reserved">const</span> <span class="reserved">char</span> *pdfioObjGetName(<a href="#pdfio_obj_t">pdfio_obj_t</a> *obj);</p>
|
||||
<h4 class="parameters">Parameters</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>obj</th>
|
||||
<td class="description">Object</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Dictionary or <code>NULL</code> on error</p>
|
||||
<h3 class="function"><a id="pdfioObjGetNumber">pdfioObjGetNumber</a></h3>
|
||||
<p class="description">Get the object's number.</p>
|
||||
<p class="code">
|
||||
@ -3490,7 +3731,30 @@ size_t pdfioObjGetNumber(<a href="#pdfio_obj_t">pdfio_obj_t</a> *obj);</p>
|
||||
<td class="description">Object</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Object subtype</p>
|
||||
<p class="description">Object subtype name or <code>NULL</code> for none</p>
|
||||
<h4 class="discussion">Discussion</h4>
|
||||
<p class="discussion">This function returns an object's PDF subtype name, if any. Common subtype
|
||||
names include:
|
||||
|
||||
</p><ul>
|
||||
<li>"CIDFontType0": A CID Type0 font
|
||||
</li>
|
||||
<li>"CIDFontType2": A CID TrueType font
|
||||
</li>
|
||||
<li>"Image": An image or image mask
|
||||
</li>
|
||||
<li>"Form": A fillable form
|
||||
</li>
|
||||
<li>"OpenType": An OpenType font
|
||||
</li>
|
||||
<li>"Type0": A composite font
|
||||
</li>
|
||||
<li>"Type1": A PostScript Type1 font
|
||||
</li>
|
||||
<li>"Type3": A PDF Type3 font
|
||||
</li>
|
||||
<li>"TrueType": A TrueType font</li>
|
||||
</ul>
|
||||
<h3 class="function"><a id="pdfioObjGetType">pdfioObjGetType</a></h3>
|
||||
<p class="description">Get an object's type.</p>
|
||||
<p class="code">
|
||||
@ -3501,7 +3765,28 @@ size_t pdfioObjGetNumber(<a href="#pdfio_obj_t">pdfio_obj_t</a> *obj);</p>
|
||||
<td class="description">Object</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Object type</p>
|
||||
<p class="description">Object type name or <code>NULL</code> for none</p>
|
||||
<h4 class="discussion">Discussion</h4>
|
||||
<p class="discussion">This function returns an object's PDF type name, if any. Common type names
|
||||
include:
|
||||
|
||||
</p><ul>
|
||||
<li>"CMap": A character map for composite fonts
|
||||
</li>
|
||||
<li>"Font": An embedded font (<a href="#pdfioObjGetSubtype"><code>pdfioObjGetSubtype</code></a> will tell you the
|
||||
font format)
|
||||
</li>
|
||||
<li>"FontDescriptor": A font descriptor
|
||||
</li>
|
||||
<li>"Page": A (visible) page
|
||||
</li>
|
||||
<li>"Pages": A page tree node
|
||||
</li>
|
||||
<li>"Template": An invisible template page
|
||||
</li>
|
||||
<li>"XObject": An image, image mask, or form (<a href="#pdfioObjGetSubtype"><code>pdfioObjGetSubtype</code></a> will
|
||||
tell you which)</li>
|
||||
</ul>
|
||||
<h3 class="function"><a id="pdfioObjOpenStream">pdfioObjOpenStream</a></h3>
|
||||
<p class="description">Open an object's (data) stream for reading.</p>
|
||||
<p class="code">
|
||||
|
||||
246
doc/pdfio.md
246
doc/pdfio.md
@ -120,6 +120,182 @@ that are defined in a separate header file:
|
||||
```
|
||||
|
||||
|
||||
Understanding PDF Files
|
||||
-----------------------
|
||||
|
||||
A PDF file provides data and commands for displaying pages of graphics and text,
|
||||
and is structured in a way that allows it to be displayed in the same way across
|
||||
multiple devices and platforms. The following is a PDF which shows "Hello,
|
||||
World!" on one page:
|
||||
|
||||
```
|
||||
%PDF-1.0 % Header starts here
|
||||
%âãÏÓ
|
||||
1 0 obj % Body starts here
|
||||
<<
|
||||
/Kids [2 0 R]
|
||||
/Count 1
|
||||
/Type /Pages
|
||||
>>
|
||||
endobj
|
||||
2 0 obj
|
||||
<<
|
||||
/Rotate 0
|
||||
/Parent 1 0 R
|
||||
/Resources 3 0 R
|
||||
/MediaBox [0 0 612 792]
|
||||
/Contents [4 0 R]/Type /Page
|
||||
>>
|
||||
endobj
|
||||
3 0 obj
|
||||
<<
|
||||
/Font
|
||||
<<
|
||||
/F0
|
||||
<<
|
||||
/BaseFont /Times-Italic
|
||||
/Subtype /Type1
|
||||
/Type /Font
|
||||
>>
|
||||
>>
|
||||
>>
|
||||
endobj
|
||||
4 0 obj
|
||||
<<
|
||||
/Length 65
|
||||
>>
|
||||
stream
|
||||
1. 0. 0. 1. 50. 700. cm
|
||||
BT
|
||||
/F0 36. Tf
|
||||
(Hello, World!) Tj
|
||||
ET
|
||||
endstream
|
||||
endobj
|
||||
5 0 obj
|
||||
<<
|
||||
/Pages 1 0 R
|
||||
/Type /Catalog
|
||||
>>
|
||||
endobj
|
||||
xref % Cross-reference table starts here
|
||||
0 6
|
||||
0000000000 65535 f
|
||||
0000000015 00000 n
|
||||
0000000074 00000 n
|
||||
0000000192 00000 n
|
||||
0000000291 00000 n
|
||||
0000000409 00000 n
|
||||
trailer % Trailer starts here
|
||||
<<
|
||||
/Root 5 0 R
|
||||
/Size 6
|
||||
>>
|
||||
startxref
|
||||
459
|
||||
%%EOF
|
||||
```
|
||||
|
||||
|
||||
### Header
|
||||
|
||||
The header is the first line of a PDF file that specifies the version of the PDF
|
||||
format that has been used, for example `%PDF-1.0`.
|
||||
|
||||
Since PDF files almost always contain binary data, they can become corrupted if
|
||||
line endings are changed. For example, if the file is transferred using FTP in
|
||||
text mode or is edited in Notepad on Windows. To allow legacy file transfer
|
||||
programs to determine that the file is binary, the PDF standard recommends
|
||||
including some bytes with character codes higher than 127 in the header, for
|
||||
example:
|
||||
|
||||
```
|
||||
%âãÏÓ
|
||||
```
|
||||
|
||||
The percent sign indicates a comment line while the other few bytes are
|
||||
arbitrary character codes in excess of 127. So, the whole header in our example
|
||||
is:
|
||||
|
||||
```
|
||||
%PDF-1.0
|
||||
%âãÏÓ
|
||||
```
|
||||
|
||||
|
||||
### Body
|
||||
|
||||
The file body consists of a sequence of objects, each preceded by an object
|
||||
number, generation number, and the obj keyword on one line, and followed by the
|
||||
endobj keyword on another. For example:
|
||||
|
||||
```
|
||||
1 0 obj
|
||||
<<
|
||||
/Kids [2 0 R]
|
||||
/Count 1
|
||||
/Type /Pages
|
||||
>>
|
||||
endobj
|
||||
```
|
||||
|
||||
In this example, the object number is 1 and the generation number is 0, meaning
|
||||
it is the first version of the object. The content for object 1 is between the
|
||||
initial `1 0 obj` and trailing `endobj` lines. In this case, the content is the
|
||||
dictionary `<</Kids [2 0 R] /Count 1 /Type /Pages>>`.
|
||||
|
||||
|
||||
### Cross-Reference Table
|
||||
|
||||
The cross-reference table lists the byte offset of each object in the file body.
|
||||
This allows random access to objects, meaning they don't have to be read in
|
||||
order. Objects that are not used are never read, making the process efficient.
|
||||
Operations like counting the number of pages in a PDF document are fast, even in
|
||||
large files.
|
||||
|
||||
Each object has an object number and a generation number. Generation numbers
|
||||
are used when a cross-reference table entry is reused. For simplicity, we will
|
||||
assume generation numbers to be always zero and ignore them. The
|
||||
cross-reference table consists of a header line that indicates the number of
|
||||
entries, a free entry line for object 0, and a line for each of the objects in
|
||||
the file body. For example:
|
||||
|
||||
```
|
||||
0 6 % Six entries in table, starting at 0
|
||||
0000000000 65535 f % Free entry for object 0
|
||||
0000000015 00000 n % Object 1 is at byte offset 15
|
||||
0000000074 00000 n % Object 2 is at byte offset 74
|
||||
0000000192 00000 n % etc...
|
||||
0000000291 00000 n
|
||||
0000000409 00000 n % Object 5 is at byte offset 409
|
||||
```
|
||||
|
||||
|
||||
### Trailer
|
||||
|
||||
The first line of the trailer is just the `trailer` keyword. This is followed
|
||||
by the trailer dictionary which contains at least the `/Size` entry specifying
|
||||
the number of entries in the cross-reference table and the `/Root` entry which
|
||||
references the object for the document catalog which is the root element of the
|
||||
graph of objects in the body.
|
||||
|
||||
There follows a line with just the `startxref` keyword, a line with a single
|
||||
number specifying the byte offset of the start of the cross-reference table
|
||||
within the file, and then the line `%%EOF` which signals the end of the PDF
|
||||
file.
|
||||
|
||||
```
|
||||
trailer % Trailer keyword
|
||||
<< % The trailer dictinonary
|
||||
/Root 5 0 R
|
||||
/Size 6
|
||||
>>
|
||||
startxref % startxref keyword
|
||||
459 % Byte offset of cross-reference table
|
||||
%%EOF % End-of-file marker
|
||||
```
|
||||
|
||||
|
||||
API Overview
|
||||
============
|
||||
|
||||
@ -132,6 +308,7 @@ PDFio exposes several types:
|
||||
- `pdfio_stream_t`: An object stream
|
||||
|
||||
|
||||
|
||||
Reading PDF Files
|
||||
-----------------
|
||||
|
||||
@ -202,7 +379,74 @@ Each page is represented by a "page tree" object (what [`pdfioFileGetPage`](@@)
|
||||
returns) that specifies information about the page and one or more "content"
|
||||
objects that contain the images, fonts, text, and graphics that appear on the
|
||||
page. Use the [`pdfioPageGetNumStreams`](@@) and [`pdfioPageOpenStream`](@@)
|
||||
functions to access the content streams for each page.
|
||||
functions to access the content streams for each page, and
|
||||
[`pdfioObjGetDict`](@@) to get the associated page object dictionary. For
|
||||
example, if you want to display the media and crop boxes for a given page:
|
||||
|
||||
```c
|
||||
pdfio_file_t *pdf; // PDF file
|
||||
size_t i; // Looping var
|
||||
size_t count; // Number of pages
|
||||
pdfio_obj_t *page; // Current page
|
||||
pdfio_dict_t *dict; // Current page dictionary
|
||||
pdfio_array_t *media_box; // MediaBox array
|
||||
double media_values[4]; // MediaBox values
|
||||
pdfio_array_t *crop_box; // CropBox array
|
||||
double crop_values[4]; // CropBox values
|
||||
|
||||
// Iterate the pages in the PDF file
|
||||
for (i = 0, count = pdfioFileGetNumPages(pdf); i < count; i ++)
|
||||
{
|
||||
page = pdfioFileGetPage(pdf, i);
|
||||
dict = pdfioObjGetDict(page);
|
||||
|
||||
media_box = pdfioDictGetArray(dict, "MediaBox");
|
||||
media_values[0] = pdfioArrayGetNumber(media_box, 0);
|
||||
media_values[1] = pdfioArrayGetNumber(media_box, 1);
|
||||
media_values[2] = pdfioArrayGetNumber(media_box, 2);
|
||||
media_values[3] = pdfioArrayGetNumber(media_box, 3);
|
||||
|
||||
crop_box = pdfioDictGetArray(dict, "CropBox");
|
||||
crop_values[0] = pdfioArrayGetNumber(crop_box, 0);
|
||||
crop_values[1] = pdfioArrayGetNumber(crop_box, 1);
|
||||
crop_values[2] = pdfioArrayGetNumber(crop_box, 2);
|
||||
crop_values[3] = pdfioArrayGetNumber(crop_box, 3);
|
||||
|
||||
printf("Page %u: MediaBox=[%g %g %g %g], CropBox=[%g %g %g %g]\n",
|
||||
(unsigned)(i + 1),
|
||||
media_values[0], media_values[1], media_values[2], media_values[3],
|
||||
crop_values[0], crop_values[1], crop_values[2], crop_values[3]);
|
||||
}
|
||||
```
|
||||
|
||||
Page object dictionaries have several (mostly optional) key/value pairs,
|
||||
including:
|
||||
|
||||
- "Annots": An array of annotation dictionaries for the page; use
|
||||
[`pdfioDictGetArray`](@@) to get the array
|
||||
- "CropBox": The crop box as an array of four numbers for the left, bottom,
|
||||
right, and top coordinates of the target media; use [`pdfioDictGetArray`](@@)
|
||||
to get a pointer to the array of numbers
|
||||
- "Dur": The number of seconds the page should be displayed; use
|
||||
[`pdfioDictGetNumber`](@@) to get the page duration value
|
||||
- "Group": The dictionary of transparency group values for the page; use
|
||||
[`pdfioDictGetDict`](@@) to get a pointer to the resources dictionary
|
||||
- "LastModified": The date and time when this page was last modified; use
|
||||
[`pdfioDictGetDate`](@@) to get the Unix `time_t` value
|
||||
- "Parent": The parent page tree node object for this page; use
|
||||
[`pdfioDictGetObj`](@@) to get a pointer to the object
|
||||
- "MediaBox": The media box as an array of four numbers for the left, bottom,
|
||||
right, and top coordinates of the target media; use [`pdfioDictGetArray`](@@)
|
||||
to get a pointer to the array of numbers
|
||||
- "Resources": The dictionary of resources for the page; use
|
||||
[`pdfioDictGetDict`](@@) to get a pointer to the resources dictionary
|
||||
- "Rotate": A number indicating the number of degrees of counter-clockwise
|
||||
rotation to apply to the page when viewing; use [`pdfioDictGetNumber`](@@)
|
||||
to get the rotation angle
|
||||
- "Thumb": A thumbnail image object for the page; use [`pdfioDictGetObj`](@@)
|
||||
to get a pointer to the thumbnail image object
|
||||
- "Trans": The page transition dictionary; use [`pdfioDictGetDict`](@@) to get
|
||||
a pointer to the dictionary
|
||||
|
||||
The [`pdfioFileClose`](@@) function closes a PDF file and frees all memory that
|
||||
was used for it:
|
||||
|
||||
46
examples/Makefile
Normal file
46
examples/Makefile
Normal file
@ -0,0 +1,46 @@
|
||||
#
|
||||
# Makefile for PDFio examples.
|
||||
#
|
||||
# Copyright © 2024 by Michael R Sweet.
|
||||
#
|
||||
# Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
# information.
|
||||
#
|
||||
|
||||
# POSIX makefile
|
||||
.POSIX:
|
||||
|
||||
|
||||
# Common options
|
||||
CFLAGS = -g $(CPPFLAGS)
|
||||
CPPFLAGS = -I..
|
||||
LIBS = -L.. -lpdfio -lz
|
||||
|
||||
|
||||
# Targets
|
||||
TARGETS = \
|
||||
code128 \
|
||||
md2pdf
|
||||
|
||||
|
||||
# Make everything
|
||||
all: $(TARGETS)
|
||||
|
||||
|
||||
# Clean everything
|
||||
clean:
|
||||
rm -f $(TARGETS)
|
||||
|
||||
|
||||
# code128
|
||||
code128: code128.c
|
||||
$(CC) $(CFLAGS) -o $@ code128.c $(LIBS)
|
||||
|
||||
|
||||
# md2pdf
|
||||
md2pdf: md2pdf.c mmd.c mmd.h
|
||||
$(CC) $(CFLAGS) -o $@ md2pdf.c mmd.c $(LIBS)
|
||||
|
||||
|
||||
# Common dependencies...
|
||||
$(TARGETS): Makefile ../pdfio.h ../pdfio-content.h
|
||||
BIN
examples/Roboto-Bold.ttf
Normal file
BIN
examples/Roboto-Bold.ttf
Normal file
Binary file not shown.
BIN
examples/Roboto-Italic.ttf
Normal file
BIN
examples/Roboto-Italic.ttf
Normal file
Binary file not shown.
BIN
examples/Roboto-Regular.ttf
Normal file
BIN
examples/Roboto-Regular.ttf
Normal file
Binary file not shown.
BIN
examples/RobotoMono-Regular.ttf
Normal file
BIN
examples/RobotoMono-Regular.ttf
Normal file
Binary file not shown.
209
examples/code128.c
Normal file
209
examples/code128.c
Normal file
@ -0,0 +1,209 @@
|
||||
//
|
||||
// Code 128 barcode example for PDFio.
|
||||
//
|
||||
// Copyright © 2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
//
|
||||
// Usage:
|
||||
//
|
||||
// ./code128 "BARCODE" ["TEXT"] >FILENAME.pdf
|
||||
//
|
||||
|
||||
#include <pdfio.h>
|
||||
#include <pdfio-content.h>
|
||||
|
||||
|
||||
//
|
||||
// 'make_code128()' - Make a Code 128 barcode string.
|
||||
//
|
||||
// This function produces a Code B (printable ASCII) representation of the
|
||||
// source string and doesn't try to optimize using Code C. Non-printable and
|
||||
// extended characters are ignored in the source string.
|
||||
//
|
||||
|
||||
|
||||
static char * // O - Output string
|
||||
make_code128(char *dst, // I - Destination buffer
|
||||
const char *src, // I - Source string
|
||||
size_t dstsize) // I - Size of destination buffer
|
||||
{
|
||||
char *dstptr, // Pointer into destination buffer
|
||||
*dstend; // End of destination buffer
|
||||
int sum; // Weighted sum
|
||||
static const char *code128_chars = // Code 128 characters
|
||||
" !\"#$%&'()*+,-./0123456789:;<=>?"
|
||||
"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
|
||||
"`abcdefghijklmnopqrstuvwxyz{|}~\303"
|
||||
"\304\305\306\307\310\311\312";
|
||||
static const char code128_fnc_3 = '\304';
|
||||
// FNC 3
|
||||
static const char code128_fnc_2 = '\305';
|
||||
// FNC 2
|
||||
static const char code128_shift_b = '\306';
|
||||
// Shift B (for lowercase)
|
||||
static const char code128_code_c = '\307';
|
||||
// Code C
|
||||
static const char code128_code_b = '\310';
|
||||
// Code B
|
||||
static const char code128_fnc_4 = '\311';
|
||||
// FNC 4
|
||||
static const char code128_fnc_1 = '\312';
|
||||
// FNC 1
|
||||
static const char code128_start_code_a = '\313';
|
||||
// Start code A
|
||||
static const char code128_start_code_b = '\314';
|
||||
// Start code A
|
||||
static const char code128_start_code_c = '\315';
|
||||
// Start code A
|
||||
static const char code128_stop = '\316';
|
||||
// Stop pattern
|
||||
|
||||
|
||||
// Start a Code B barcode...
|
||||
dstptr = dst;
|
||||
dstend = dst + dstsize - 3;
|
||||
|
||||
*dstptr++ = code128_start_code_b;
|
||||
sum = code128_start_code_b - 100;
|
||||
|
||||
while (*src && dstptr < dstend)
|
||||
{
|
||||
if (*src >= ' ' && *src < 0x7f)
|
||||
{
|
||||
sum += (dstptr - dst) * (*src - ' ');
|
||||
*dstptr++ = *src;
|
||||
}
|
||||
|
||||
src ++;
|
||||
}
|
||||
|
||||
// Add the weighted sum modulo 103
|
||||
*dstptr++ = code128_chars[sum % 103];
|
||||
|
||||
// Add the stop pattern and return...
|
||||
*dstptr++ = code128_stop;
|
||||
*dstptr = '\0';
|
||||
|
||||
return (dst);
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'output_cb()' - Write PDF data to the standard output...
|
||||
//
|
||||
|
||||
static ssize_t // O - Number of bytes written
|
||||
output_cb(void *output_cbdata, // I - Callback data (not used)
|
||||
const void *buffer, // I - Buffer to write
|
||||
size_t bytes) // I - Number of bytes to write
|
||||
{
|
||||
(void)output_cbdata;
|
||||
|
||||
return ((ssize_t)fwrite(buffer, 1, bytes, stdout));
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'main()' - Produce a single-page barcode file.
|
||||
//
|
||||
|
||||
int // O - Exit status
|
||||
main(int argc, // I - Number of command-line arguments
|
||||
char *argv[]) // I - Command-line arguments
|
||||
{
|
||||
const char *barcode, // Barcode to show
|
||||
*text; // Text to display under barcode
|
||||
pdfio_file_t *pdf; // Output PDF file
|
||||
pdfio_obj_t *barcode_font; // Barcode font object
|
||||
pdfio_obj_t *text_font = NULL; // Text font object
|
||||
pdfio_dict_t *page_dict; // Page dictionary
|
||||
pdfio_rect_t media_box; // Media/CropBox for page
|
||||
pdfio_stream_t *page_st; // Page stream
|
||||
char barcode_temp[256]; // Barcode buffer
|
||||
double barcode_height = 36.0, // Height of barcode
|
||||
barcode_width, // Width of barcode
|
||||
text_height = 0.0, // Height of text
|
||||
text_width = 0.0; // Width of text
|
||||
|
||||
|
||||
// Get the barcode and optional text from the command-line...
|
||||
if (argc < 2 || argc > 3)
|
||||
{
|
||||
fputs("Usage: code128 \"BARCODE\" [\"TEXT\"] >FILENAME.pdf\n", stderr);
|
||||
return (1);
|
||||
}
|
||||
|
||||
barcode = argv[1];
|
||||
text = argv[2];
|
||||
|
||||
// Output a PDF file to the standard output...
|
||||
#ifdef _WIN32
|
||||
setmode(1, O_BINARY); // Force binary output on Windows
|
||||
#endif // _WIN32
|
||||
|
||||
if ((pdf = pdfioFileCreateOutput(output_cb, /*output_cbdata*/NULL, /*version*/NULL, /*media_box*/NULL, /*crop_box*/NULL, /*error_cb*/NULL, /*error_data*/NULL)) == NULL)
|
||||
return (1);
|
||||
|
||||
// Load fonts...
|
||||
barcode_font = pdfioFileCreateFontObjFromFile(pdf, "code128.ttf", /*unicode*/false);
|
||||
if (text)
|
||||
text_font = pdfioFileCreateFontObjFromFile(pdf, "../testfiles/OpenSans-Regular.ttf", /*unicode*/true);
|
||||
|
||||
// Generate Code128 characters for the desired barcode...
|
||||
if (!(barcode[0] & 0x80))
|
||||
barcode = make_code128(barcode_temp, barcode, sizeof(barcode_temp));
|
||||
|
||||
// Compute sizes of the text...
|
||||
barcode_width = pdfioContentTextMeasure(barcode_font, barcode, barcode_height);
|
||||
if (text && text_font)
|
||||
{
|
||||
text_height = 9.0;
|
||||
text_width = pdfioContentTextMeasure(text_font, text, text_height);
|
||||
}
|
||||
|
||||
// Compute the size of the PDF page...
|
||||
media_box.x1 = 0.0;
|
||||
media_box.y1 = 0.0;
|
||||
media_box.x2 = (barcode_width > text_width ? barcode_width : text_width) + 18.0;
|
||||
media_box.y2 = barcode_height + text_height + 18.0;
|
||||
|
||||
// Start a page for the barcode...
|
||||
page_dict = pdfioDictCreate(pdf);
|
||||
|
||||
pdfioDictSetRect(page_dict, "MediaBox", &media_box);
|
||||
pdfioDictSetRect(page_dict, "CropBox", &media_box);
|
||||
|
||||
pdfioPageDictAddFont(page_dict, "B128", barcode_font);
|
||||
if (text_font)
|
||||
pdfioPageDictAddFont(page_dict, "TEXT", text_font);
|
||||
|
||||
page_st = pdfioFileCreatePage(pdf, page_dict);
|
||||
|
||||
// Draw the page...
|
||||
pdfioContentSetStrokeColorGray(page_st, 0.0);
|
||||
|
||||
pdfioContentSetTextFont(page_st, "B128", barcode_height);
|
||||
pdfioContentTextBegin(page_st);
|
||||
pdfioContentTextMoveTo(page_st, 0.5 * (media_box.x2 - barcode_width), 9.0 + text_height);
|
||||
pdfioContentTextShow(page_st, /*unicode*/false, barcode);
|
||||
pdfioContentTextEnd(page_st);
|
||||
|
||||
if (text && text_font)
|
||||
{
|
||||
pdfioContentSetTextFont(page_st, "TEXT", text_height);
|
||||
pdfioContentTextBegin(page_st);
|
||||
pdfioContentTextMoveTo(page_st, 0.5 * (media_box.x2 - text_width), 9.0);
|
||||
pdfioContentTextShow(page_st, /*unicode*/true, text);
|
||||
pdfioContentTextEnd(page_st);
|
||||
}
|
||||
|
||||
pdfioStreamClose(page_st);
|
||||
|
||||
// Close and return...
|
||||
pdfioFileClose(pdf);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
BIN
examples/code128.ttf
Normal file
BIN
examples/code128.ttf
Normal file
Binary file not shown.
1631
examples/md2pdf.c
Normal file
1631
examples/md2pdf.c
Normal file
File diff suppressed because it is too large
Load Diff
27
examples/md2pdf.md
Normal file
27
examples/md2pdf.md
Normal file
@ -0,0 +1,27 @@
|
||||
---
|
||||
title: Markdown to PDF Converter Example
|
||||
...
|
||||
|
||||
Markdown to PDF Converter Example
|
||||
=================================
|
||||
|
||||
The `md2pdf` example program reads a markdown file and formats the content onto
|
||||
pages in a PDF file. It demonstrates how to:
|
||||
|
||||
- Embed base and TrueType fonts,
|
||||
- Format text,
|
||||
- Embed JPEG and PNG images,
|
||||
- Add headers and footers, and
|
||||
- Add hyperlinks.
|
||||
|
||||
|
||||
Source Files
|
||||
------------
|
||||
|
||||
The `md2pdf` program is organized into three source files: `md2pdf.c` which
|
||||
contains the code to format the markdown content and `mmd.h` and `mmd.c` (from
|
||||
the [Miniature Markdown Library][MMD] project) which load the markdown content.
|
||||
|
||||
[MMD]: https://www.msweet.org/mmd/
|
||||
|
||||
|
||||
2381
examples/mmd.c
Normal file
2381
examples/mmd.c
Normal file
File diff suppressed because it is too large
Load Diff
112
examples/mmd.h
Normal file
112
examples/mmd.h
Normal file
@ -0,0 +1,112 @@
|
||||
//
|
||||
// Header file for miniature markdown library.
|
||||
//
|
||||
// https://www.msweet.org/mmd
|
||||
//
|
||||
// Copyright © 2017-2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
//
|
||||
|
||||
#ifndef MMD_H
|
||||
# define MMD_H
|
||||
# include <stdio.h>
|
||||
# include <stdbool.h>
|
||||
# ifdef __cplusplus
|
||||
extern "C" {
|
||||
# endif // __cplusplus
|
||||
|
||||
|
||||
//
|
||||
// Constants...
|
||||
//
|
||||
|
||||
enum mmd_option_e
|
||||
{
|
||||
MMD_OPTION_NONE = 0x00, // No markdown extensions
|
||||
MMD_OPTION_METADATA = 0x01, // Jekyll metadata extension
|
||||
MMD_OPTION_TABLES = 0x02, // Github table extension
|
||||
MMD_OPTION_TASKS = 0x04, // Github task item extension (check boxes)
|
||||
MMD_OPTION_ALL = 0x07 // All supported markdown extensions
|
||||
};
|
||||
typedef unsigned mmd_option_t;
|
||||
|
||||
typedef enum mmd_type_e
|
||||
{
|
||||
MMD_TYPE_NONE = -1,
|
||||
MMD_TYPE_DOCUMENT, // The document root
|
||||
MMD_TYPE_METADATA, // Document metadata
|
||||
MMD_TYPE_BLOCK_QUOTE, // <blockquote>
|
||||
MMD_TYPE_ORDERED_LIST, // <ol>
|
||||
MMD_TYPE_UNORDERED_LIST, // <ul>
|
||||
MMD_TYPE_LIST_ITEM, // <li>
|
||||
MMD_TYPE_TABLE, // <table>
|
||||
MMD_TYPE_TABLE_HEADER, // <thead>
|
||||
MMD_TYPE_TABLE_BODY, // <tbody>
|
||||
MMD_TYPE_TABLE_ROW, // <tr>
|
||||
MMD_TYPE_HEADING_1 = 10, // <h1>
|
||||
MMD_TYPE_HEADING_2, // <h2>
|
||||
MMD_TYPE_HEADING_3, // <h3>
|
||||
MMD_TYPE_HEADING_4, // <h4>
|
||||
MMD_TYPE_HEADING_5, // <h5>
|
||||
MMD_TYPE_HEADING_6, // <h6>
|
||||
MMD_TYPE_PARAGRAPH, // <p>
|
||||
MMD_TYPE_CODE_BLOCK, // <pre><code>
|
||||
MMD_TYPE_THEMATIC_BREAK, // <hr />
|
||||
MMD_TYPE_TABLE_HEADER_CELL, // <th>
|
||||
MMD_TYPE_TABLE_BODY_CELL_LEFT, // <td align="left">
|
||||
MMD_TYPE_TABLE_BODY_CELL_CENTER, // <td align="center">
|
||||
MMD_TYPE_TABLE_BODY_CELL_RIGHT, // <td align="right">
|
||||
MMD_TYPE_NORMAL_TEXT = 100, // Normal text
|
||||
MMD_TYPE_EMPHASIZED_TEXT, // <em>text</em>
|
||||
MMD_TYPE_STRONG_TEXT, // <strong>text</strong>
|
||||
MMD_TYPE_STRUCK_TEXT, // <del>text</del>
|
||||
MMD_TYPE_LINKED_TEXT, // <a href="link">text</a>
|
||||
MMD_TYPE_CODE_TEXT, // <code>text</code>
|
||||
MMD_TYPE_IMAGE, // <img src="link" />
|
||||
MMD_TYPE_HARD_BREAK, // <br />
|
||||
MMD_TYPE_SOFT_BREAK, // <wbr />
|
||||
MMD_TYPE_METADATA_TEXT, // name: value
|
||||
MMD_TYPE_CHECKBOX // [ ] or [x]
|
||||
} mmd_type_t;
|
||||
|
||||
|
||||
//
|
||||
// Types...
|
||||
//
|
||||
|
||||
typedef struct _mmd_s mmd_t; // Markdown node
|
||||
typedef size_t (*mmd_iocb_t)(void *cbdata, char *buffer, size_t bytes);
|
||||
// mmdLoadIO callback function
|
||||
|
||||
//
|
||||
// Functions...
|
||||
//
|
||||
|
||||
extern char *mmdCopyAllText(mmd_t *node);
|
||||
extern void mmdFree(mmd_t *node);
|
||||
extern const char *mmdGetExtra(mmd_t *node);
|
||||
extern mmd_t *mmdGetFirstChild(mmd_t *node);
|
||||
extern mmd_t *mmdGetLastChild(mmd_t *node);
|
||||
extern const char *mmdGetMetadata(mmd_t *doc, const char *keyword);
|
||||
extern mmd_t *mmdGetNextSibling(mmd_t *node);
|
||||
extern mmd_option_t mmdGetOptions(void);
|
||||
extern mmd_t *mmdGetParent(mmd_t *node);
|
||||
extern mmd_t *mmdGetPrevSibling(mmd_t *node);
|
||||
extern const char *mmdGetText(mmd_t *node);
|
||||
extern mmd_type_t mmdGetType(mmd_t *node);
|
||||
extern const char *mmdGetURL(mmd_t *node);
|
||||
extern bool mmdGetWhitespace(mmd_t *node);
|
||||
extern bool mmdIsBlock(mmd_t *node);
|
||||
extern mmd_t *mmdLoad(mmd_t *root, const char *filename);
|
||||
extern mmd_t *mmdLoadFile(mmd_t *root, FILE *fp);
|
||||
extern mmd_t *mmdLoadIO(mmd_t *root, mmd_iocb_t cb, void *cbdata);
|
||||
extern mmd_t *mmdLoadString(mmd_t *root, const char *s);
|
||||
extern void mmdSetOptions(mmd_option_t options);
|
||||
|
||||
|
||||
# ifdef __cplusplus
|
||||
}
|
||||
# endif // __cplusplus
|
||||
#endif // !MMD_H
|
||||
@ -1,7 +1,7 @@
|
||||
//
|
||||
// PDF array functions for PDFio.
|
||||
//
|
||||
// Copyright © 2021 by Michael R Sweet.
|
||||
// Copyright © 2021-2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
@ -363,6 +363,9 @@ _pdfioArrayDebug(pdfio_array_t *a, // I - Array
|
||||
_pdfio_value_t *v; // Current value
|
||||
|
||||
|
||||
if (!a)
|
||||
return;
|
||||
|
||||
putc('[', fp);
|
||||
for (i = a->num_values, v = a->values; i > 0; i --, v ++)
|
||||
_pdfioValueDebug(v, fp);
|
||||
@ -634,6 +637,28 @@ _pdfioArrayRead(pdfio_file_t *pdf, // I - PDF file
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioArrayRemove()' - Remove an array entry.
|
||||
//
|
||||
|
||||
bool // O - `true` on success, `false` otherwise
|
||||
pdfioArrayRemove(pdfio_array_t *a, // I - Array
|
||||
size_t n) // I - Index
|
||||
{
|
||||
if (!a || n >= a->num_values)
|
||||
return (false);
|
||||
|
||||
if (a->values[n].type == PDFIO_VALTYPE_BINARY)
|
||||
free(a->values[n].value.binary.data);
|
||||
|
||||
a->num_values --;
|
||||
if (n < a->num_values)
|
||||
memmove(a->values + n, a->values + n + 1, (a->num_values - n) * sizeof(_pdfio_value_t));
|
||||
|
||||
return (true);
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// '_pdfioArrayWrite()' - Write an array to a PDF file.
|
||||
//
|
||||
|
||||
308
pdfio-base-font-widths.h
Normal file
308
pdfio-base-font-widths.h
Normal file
@ -0,0 +1,308 @@
|
||||
//
|
||||
// PDF base font widths for PDFio.
|
||||
//
|
||||
// Copyright © 2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
//
|
||||
|
||||
#ifndef PDFIO_BASE_FONT_WIDTHS_H
|
||||
# define PDFIO_BASE_FONT_WIDTHS_H 1
|
||||
|
||||
|
||||
static short courier_bold_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0,
|
||||
600, 0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 0,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 600,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600
|
||||
};
|
||||
|
||||
|
||||
static short courier_boldoblique_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0,
|
||||
600, 0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 0,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 600,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600
|
||||
};
|
||||
|
||||
|
||||
static short courier_oblique_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0,
|
||||
600, 0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 0,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 600,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600
|
||||
};
|
||||
|
||||
|
||||
static short courier_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0,
|
||||
600, 0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 0,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 0, 600, 600,
|
||||
0, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
|
||||
600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600, 600
|
||||
};
|
||||
|
||||
|
||||
static short helvetica_bold_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
278, 333, 474, 556, 556, 889, 722, 238, 333, 333, 389, 584, 278, 333, 278, 278,
|
||||
556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 333, 333, 584, 584, 584, 611,
|
||||
975, 722, 722, 722, 722, 667, 611, 778, 722, 278, 556, 722, 611, 833, 722, 778,
|
||||
667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 333, 278, 333, 584, 556,
|
||||
333, 556, 611, 556, 611, 556, 333, 611, 611, 278, 278, 556, 278, 889, 611, 611,
|
||||
611, 611, 389, 556, 333, 611, 556, 778, 556, 556, 500, 389, 280, 389, 584, 0,
|
||||
556, 0, 278, 556, 500, 1000, 556, 556, 333, 1000, 667, 333, 1000, 0, 611, 0,
|
||||
0, 278, 278, 500, 500, 350, 556, 1000, 333, 1000, 556, 333, 944, 0, 500, 667,
|
||||
0, 333, 556, 556, 556, 556, 280, 556, 333, 737, 370, 556, 584, 584, 737, 333,
|
||||
606, 584, 351, 351, 333, 611, 556, 278, 333, 351, 365, 556, 869, 869, 869, 611,
|
||||
722, 722, 722, 722, 722, 722, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278,
|
||||
722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611,
|
||||
556, 556, 556, 556, 556, 556, 889, 556, 556, 556, 556, 556, 278, 278, 278, 278,
|
||||
611, 611, 611, 611, 611, 611, 611, 584, 611, 611, 611, 611, 611, 556, 611, 556
|
||||
};
|
||||
|
||||
|
||||
static short helvetica_boldoblique_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
278, 333, 474, 556, 556, 889, 722, 238, 333, 333, 389, 584, 278, 333, 278, 278,
|
||||
556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 333, 333, 584, 584, 584, 611,
|
||||
975, 722, 722, 722, 722, 667, 611, 778, 722, 278, 556, 722, 611, 833, 722, 778,
|
||||
667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 333, 278, 333, 584, 556,
|
||||
333, 556, 611, 556, 611, 556, 333, 611, 611, 278, 278, 556, 278, 889, 611, 611,
|
||||
611, 611, 389, 556, 333, 611, 556, 778, 556, 556, 500, 389, 280, 389, 584, 0,
|
||||
556, 0, 278, 556, 500, 1000, 556, 556, 333, 1000, 667, 333, 1000, 0, 611, 0,
|
||||
0, 278, 278, 500, 500, 350, 556, 1000, 333, 1000, 556, 333, 944, 0, 500, 667,
|
||||
0, 333, 556, 556, 556, 556, 280, 556, 333, 737, 370, 556, 584, 584, 737, 333,
|
||||
606, 584, 444, 444, 333, 611, 556, 278, 333, 444, 365, 556, 1055, 1055, 1055, 611,
|
||||
722, 722, 722, 722, 722, 722, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278,
|
||||
722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611,
|
||||
556, 556, 556, 556, 556, 556, 889, 556, 556, 556, 556, 556, 278, 278, 278, 278,
|
||||
611, 611, 611, 611, 611, 611, 611, 584, 611, 611, 611, 611, 611, 556, 611, 556
|
||||
};
|
||||
|
||||
|
||||
static short helvetica_oblique_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
278, 278, 355, 556, 556, 889, 667, 191, 333, 333, 389, 584, 278, 333, 278, 278,
|
||||
556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 278, 278, 584, 584, 584, 556,
|
||||
1015, 667, 667, 722, 722, 667, 611, 778, 722, 278, 500, 667, 556, 833, 722, 778,
|
||||
667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 278, 278, 278, 469, 556,
|
||||
333, 556, 556, 500, 556, 556, 278, 556, 556, 222, 222, 500, 222, 833, 556, 556,
|
||||
556, 556, 333, 500, 278, 556, 500, 722, 500, 500, 500, 334, 260, 334, 584, 0,
|
||||
556, 0, 222, 556, 333, 1000, 556, 556, 333, 1000, 667, 333, 1000, 0, 611, 0,
|
||||
0, 222, 222, 333, 333, 350, 556, 1000, 333, 1000, 500, 333, 944, 0, 500, 667,
|
||||
0, 333, 556, 556, 556, 556, 260, 556, 333, 737, 370, 556, 584, 584, 737, 333,
|
||||
606, 584, 390, 390, 333, 556, 537, 278, 333, 390, 365, 556, 947, 947, 947, 611,
|
||||
667, 667, 667, 667, 667, 667, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278,
|
||||
722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611,
|
||||
556, 556, 556, 556, 556, 556, 889, 500, 556, 556, 556, 556, 278, 278, 278, 278,
|
||||
556, 556, 556, 556, 556, 556, 556, 584, 611, 556, 556, 556, 556, 500, 556, 500
|
||||
};
|
||||
|
||||
|
||||
static short helvetica_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
278, 278, 355, 556, 556, 889, 667, 191, 333, 333, 389, 584, 278, 333, 278, 278,
|
||||
556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 278, 278, 584, 584, 584, 556,
|
||||
1015, 667, 667, 722, 722, 667, 611, 778, 722, 278, 500, 667, 556, 833, 722, 778,
|
||||
667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 278, 278, 278, 469, 556,
|
||||
333, 556, 556, 500, 556, 556, 278, 556, 556, 222, 222, 500, 222, 833, 556, 556,
|
||||
556, 556, 333, 500, 278, 556, 500, 722, 500, 500, 500, 334, 260, 334, 584, 0,
|
||||
556, 0, 222, 556, 333, 1000, 556, 556, 333, 1000, 667, 333, 1000, 0, 611, 0,
|
||||
0, 222, 221, 333, 333, 350, 556, 1000, 333, 1000, 500, 333, 944, 0, 500, 667,
|
||||
0, 333, 556, 556, 556, 556, 260, 556, 333, 737, 370, 556, 584, 584, 737, 333,
|
||||
606, 584, 351, 351, 333, 556, 537, 278, 333, 351, 365, 556, 869, 869, 869, 611,
|
||||
667, 667, 667, 667, 667, 667, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278,
|
||||
722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 666, 666, 611,
|
||||
556, 556, 556, 556, 556, 556, 889, 500, 556, 556, 556, 556, 278, 278, 278, 278,
|
||||
556, 556, 556, 556, 556, 556, 556, 584, 611, 556, 556, 556, 556, 500, 555, 500
|
||||
};
|
||||
|
||||
|
||||
static short symbol_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
250, 333, 713, 500, 549, 833, 778, 439, 333, 333, 500, 549, 250, 549, 250, 278,
|
||||
500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 278, 278, 549, 549, 549, 444,
|
||||
549, 722, 667, 722, 612, 611, 763, 603, 722, 333, 631, 722, 686, 889, 722, 722,
|
||||
768, 741, 556, 592, 611, 690, 439, 768, 645, 795, 611, 333, 863, 333, 658, 500,
|
||||
500, 631, 549, 549, 494, 439, 521, 411, 603, 329, 603, 549, 549, 576, 521, 549,
|
||||
549, 521, 549, 603, 439, 576, 713, 686, 493, 686, 494, 480, 200, 480, 549, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
762, 620, 247, 549, 167, 713, 500, 753, 753, 753, 753, 1042, 987, 603, 987, 603,
|
||||
400, 549, 411, 549, 549, 713, 494, 460, 549, 549, 549, 549, 1000, 603, 1000, 658,
|
||||
823, 686, 795, 987, 768, 768, 823, 768, 768, 713, 713, 713, 713, 713, 713, 713,
|
||||
768, 713, 790, 790, 890, 823, 549, 250, 713, 603, 603, 1042, 987, 603, 987, 603,
|
||||
494, 329, 790, 790, 786, 713, 384, 384, 384, 384, 384, 384, 494, 494, 494, 494,
|
||||
0, 329, 274, 686, 686, 686, 384, 384, 384, 384, 384, 384, 494, 494, 494, 0
|
||||
};
|
||||
|
||||
|
||||
static short times_bold_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
250, 333, 555, 500, 500, 1000, 833, 278, 333, 333, 500, 570, 250, 333, 250, 278,
|
||||
500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 333, 333, 570, 570, 570, 500,
|
||||
930, 722, 667, 722, 722, 667, 611, 778, 778, 389, 500, 778, 667, 944, 722, 778,
|
||||
611, 778, 722, 556, 667, 722, 722, 1000, 722, 722, 667, 333, 278, 333, 581, 500,
|
||||
333, 500, 556, 444, 556, 444, 333, 500, 556, 278, 333, 556, 278, 833, 556, 500,
|
||||
556, 556, 444, 389, 333, 556, 500, 722, 500, 500, 444, 394, 220, 394, 520, 0,
|
||||
500, 0, 333, 500, 500, 1000, 500, 500, 333, 1000, 556, 333, 1000, 0, 667, 0,
|
||||
0, 333, 333, 500, 500, 350, 500, 1000, 333, 1000, 389, 333, 722, 0, 444, 722,
|
||||
0, 333, 500, 500, 500, 500, 220, 500, 333, 747, 300, 500, 570, 570, 747, 333,
|
||||
400, 570, 300, 300, 333, 556, 540, 250, 333, 300, 330, 500, 750, 750, 750, 500,
|
||||
722, 722, 722, 722, 722, 722, 1000, 722, 667, 667, 667, 667, 389, 389, 389, 389,
|
||||
722, 722, 778, 778, 778, 778, 778, 570, 778, 722, 722, 722, 722, 722, 611, 556,
|
||||
500, 500, 500, 500, 500, 500, 722, 444, 444, 444, 444, 444, 278, 278, 278, 278,
|
||||
500, 556, 500, 500, 500, 500, 500, 570, 500, 556, 556, 556, 556, 500, 556, 500
|
||||
};
|
||||
|
||||
|
||||
static short times_bolditalic_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
250, 389, 555, 500, 500, 833, 778, 278, 333, 333, 500, 570, 250, 333, 250, 278,
|
||||
500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 333, 333, 570, 570, 570, 500,
|
||||
832, 667, 667, 667, 722, 667, 667, 722, 778, 389, 500, 667, 611, 889, 722, 722,
|
||||
611, 722, 667, 556, 611, 722, 667, 889, 667, 611, 611, 333, 278, 333, 570, 500,
|
||||
333, 500, 500, 444, 500, 444, 333, 500, 556, 278, 278, 500, 278, 778, 556, 500,
|
||||
500, 500, 389, 389, 278, 556, 444, 667, 500, 444, 389, 348, 220, 348, 570, 0,
|
||||
500, 0, 333, 500, 500, 1000, 500, 500, 333, 1000, 556, 333, 944, 0, 611, 0,
|
||||
0, 333, 333, 500, 500, 350, 500, 1000, 333, 1000, 389, 333, 722, 0, 389, 611,
|
||||
0, 389, 500, 500, 500, 500, 220, 500, 333, 747, 266, 500, 606, 606, 747, 333,
|
||||
400, 570, 300, 300, 333, 576, 500, 250, 333, 300, 300, 500, 750, 750, 750, 500,
|
||||
667, 667, 667, 667, 667, 667, 944, 667, 667, 667, 667, 667, 389, 389, 389, 389,
|
||||
722, 722, 722, 722, 722, 722, 722, 570, 722, 722, 722, 722, 722, 611, 611, 500,
|
||||
500, 500, 500, 500, 500, 500, 722, 444, 444, 444, 444, 444, 278, 278, 278, 278,
|
||||
500, 556, 500, 500, 500, 500, 500, 570, 500, 556, 556, 556, 556, 444, 500, 444
|
||||
};
|
||||
|
||||
|
||||
static short times_italic_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
250, 333, 420, 500, 500, 833, 778, 214, 333, 333, 500, 675, 250, 333, 250, 278,
|
||||
500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 333, 333, 675, 675, 675, 500,
|
||||
920, 611, 611, 667, 722, 611, 611, 722, 722, 333, 444, 667, 556, 833, 667, 722,
|
||||
611, 722, 611, 500, 556, 722, 611, 833, 611, 556, 556, 389, 278, 389, 422, 500,
|
||||
333, 500, 500, 444, 500, 444, 278, 500, 500, 278, 278, 444, 278, 722, 500, 500,
|
||||
500, 500, 389, 389, 278, 500, 444, 667, 444, 444, 389, 400, 275, 400, 541, 0,
|
||||
500, 0, 333, 500, 556, 889, 500, 500, 333, 1000, 500, 333, 944, 0, 556, 0,
|
||||
0, 333, 333, 556, 556, 350, 500, 889, 333, 980, 389, 333, 667, 0, 389, 556,
|
||||
0, 389, 500, 500, 500, 500, 275, 500, 333, 760, 276, 500, 675, 675, 760, 333,
|
||||
400, 675, 300, 300, 333, 500, 523, 250, 333, 300, 310, 500, 750, 750, 750, 500,
|
||||
611, 611, 611, 611, 611, 611, 889, 667, 611, 611, 611, 611, 333, 333, 333, 333,
|
||||
722, 667, 722, 722, 722, 722, 722, 675, 722, 722, 722, 722, 722, 556, 611, 500,
|
||||
500, 500, 500, 500, 500, 500, 667, 444, 444, 444, 444, 444, 278, 278, 278, 278,
|
||||
500, 500, 500, 500, 500, 500, 500, 675, 500, 500, 500, 500, 500, 444, 500, 444
|
||||
};
|
||||
|
||||
|
||||
static short times_roman_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
250, 333, 408, 500, 500, 833, 778, 180, 333, 333, 500, 564, 250, 333, 250, 278,
|
||||
500, 500, 500, 500, 500, 500, 500, 500, 500, 500, 278, 278, 564, 564, 564, 444,
|
||||
921, 722, 667, 667, 722, 611, 556, 722, 722, 333, 389, 722, 611, 889, 722, 722,
|
||||
556, 722, 667, 556, 611, 722, 722, 944, 722, 722, 611, 333, 278, 333, 469, 500,
|
||||
333, 444, 500, 444, 500, 444, 333, 500, 500, 278, 278, 500, 278, 778, 500, 500,
|
||||
500, 500, 333, 389, 278, 500, 500, 722, 500, 500, 444, 480, 200, 480, 541, 0,
|
||||
500, 0, 333, 500, 444, 1000, 500, 500, 333, 1000, 556, 333, 889, 0, 611, 0,
|
||||
0, 333, 333, 444, 444, 350, 500, 1000, 333, 980, 389, 333, 722, 0, 444, 722,
|
||||
0, 333, 500, 500, 500, 500, 200, 500, 333, 760, 276, 500, 564, 564, 760, 333,
|
||||
400, 564, 300, 300, 333, 500, 453, 250, 333, 300, 310, 500, 750, 750, 750, 444,
|
||||
722, 722, 722, 722, 722, 722, 889, 667, 611, 611, 611, 611, 333, 333, 333, 333,
|
||||
722, 722, 722, 722, 722, 722, 722, 564, 722, 722, 722, 722, 722, 722, 556, 500,
|
||||
444, 444, 444, 444, 444, 444, 667, 444, 444, 444, 444, 444, 278, 278, 278, 278,
|
||||
500, 500, 500, 500, 500, 500, 500, 564, 500, 500, 500, 500, 500, 500, 500, 500
|
||||
};
|
||||
|
||||
|
||||
static short zapf_dingbats_widths[256] =
|
||||
{
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
278, 974, 961, 974, 980, 719, 789, 790, 791, 690, 960, 939, 549, 855, 911, 933,
|
||||
911, 945, 974, 755, 846, 762, 761, 571, 677, 763, 760, 759, 754, 494, 552, 537,
|
||||
577, 692, 786, 788, 788, 790, 793, 794, 816, 823, 789, 841, 823, 833, 816, 831,
|
||||
923, 744, 723, 749, 790, 792, 695, 776, 768, 792, 759, 707, 708, 682, 701, 826,
|
||||
815, 789, 789, 707, 687, 696, 689, 786, 787, 713, 791, 785, 791, 873, 761, 762,
|
||||
762, 759, 759, 892, 892, 788, 784, 438, 138, 277, 415, 392, 392, 668, 668, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 732, 544, 544, 910, 667, 760, 760, 776, 595, 694, 626, 788, 788, 788, 788,
|
||||
788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788,
|
||||
788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788, 788,
|
||||
788, 788, 788, 788, 894, 838, 1016, 458, 748, 924, 748, 918, 927, 928, 928, 834,
|
||||
873, 828, 924, 924, 917, 930, 931, 463, 883, 836, 836, 867, 867, 696, 696, 874,
|
||||
0, 874, 760, 946, 771, 865, 771, 888, 967, 888, 831, 873, 927, 970, 918, 0
|
||||
};
|
||||
|
||||
|
||||
#endif // !PDFIO_BASE_FONT_WIDTHS_H
|
||||
152
pdfio-content.c
152
pdfio-content.c
@ -1,7 +1,7 @@
|
||||
//
|
||||
// Content helper functions for PDFio.
|
||||
//
|
||||
// Copyright © 2021-2023 by Michael R Sweet.
|
||||
// Copyright © 2021-2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
@ -9,6 +9,7 @@
|
||||
|
||||
#include "pdfio-private.h"
|
||||
#include "pdfio-content.h"
|
||||
#include "pdfio-base-font-widths.h"
|
||||
#include "ttf.h"
|
||||
#include <math.h>
|
||||
#ifndef M_PI
|
||||
@ -1074,7 +1075,7 @@ pdfioContentTextMeasure(
|
||||
const char *s, // I - UTF-8 string
|
||||
double size) // I - Font size/height
|
||||
{
|
||||
const char *subtype; // Font sub-type
|
||||
const char *basefont; // Base font name
|
||||
ttf_t *ttf = (ttf_t *)_pdfioObjGetExtension(font);
|
||||
// TrueType font data
|
||||
ttf_rect_t extents; // Text extents
|
||||
@ -1083,75 +1084,109 @@ pdfioContentTextMeasure(
|
||||
*tempptr; // Pointer into temporary string
|
||||
|
||||
|
||||
if ((subtype = pdfioObjGetSubtype(font)) == NULL || strcmp(subtype, "Type0"))
|
||||
if (!ttf && (basefont = pdfioDictGetName(pdfioObjGetDict(font), "BaseFont")) != NULL)
|
||||
{
|
||||
// Map non-CP1282 characters to '?', everything else as-is...
|
||||
tempptr = temp;
|
||||
// Measure the width using the compiled-in base font tables...
|
||||
const short *widths; // Widths
|
||||
int width = 0; // Current width
|
||||
|
||||
while (*s && tempptr < (temp + sizeof(temp) - 3))
|
||||
if (strcmp(basefont, "Symbol") && strcmp(basefont, "Zapf-Dingbats"))
|
||||
{
|
||||
if ((*s & 0xe0) == 0xc0)
|
||||
{
|
||||
// Two-byte UTF-8
|
||||
ch = ((s[0] & 0x1f) << 6) | (s[1] & 0x3f);
|
||||
s += 2;
|
||||
}
|
||||
else if ((*s & 0xf0) == 0xe0)
|
||||
{
|
||||
// Three-byte UTF-8
|
||||
ch = ((s[0] & 0x0f) << 12) | ((s[1] & 0x3f) << 6) | (s[2] & 0x3f);
|
||||
s += 3;
|
||||
}
|
||||
else if ((*s & 0xf8) == 0xf0)
|
||||
{
|
||||
// Four-byte UTF-8
|
||||
ch = ((s[0] & 0x07) << 18) | ((s[1] & 0x3f) << 12) | ((s[2] & 0x3f) << 6) | (s[3] & 0x3f);
|
||||
s += 4;
|
||||
}
|
||||
else
|
||||
{
|
||||
ch = *s++;
|
||||
}
|
||||
// Map non-CP1282 characters to '?', everything else as-is...
|
||||
tempptr = temp;
|
||||
|
||||
if (ch > 255)
|
||||
while (*s && tempptr < (temp + sizeof(temp) - 3))
|
||||
{
|
||||
// Try mapping from Unicode to CP1252...
|
||||
size_t i; // Looping var
|
||||
|
||||
for (i = 0; i < (sizeof(_pdfio_cp1252) / sizeof(_pdfio_cp1252[0])); i ++)
|
||||
if ((*s & 0xe0) == 0xc0)
|
||||
{
|
||||
if (ch == _pdfio_cp1252[i])
|
||||
break;
|
||||
// Two-byte UTF-8
|
||||
ch = ((s[0] & 0x1f) << 6) | (s[1] & 0x3f);
|
||||
s += 2;
|
||||
}
|
||||
else if ((*s & 0xf0) == 0xe0)
|
||||
{
|
||||
// Three-byte UTF-8
|
||||
ch = ((s[0] & 0x0f) << 12) | ((s[1] & 0x3f) << 6) | (s[2] & 0x3f);
|
||||
s += 3;
|
||||
}
|
||||
else if ((*s & 0xf8) == 0xf0)
|
||||
{
|
||||
// Four-byte UTF-8
|
||||
ch = ((s[0] & 0x07) << 18) | ((s[1] & 0x3f) << 12) | ((s[2] & 0x3f) << 6) | (s[3] & 0x3f);
|
||||
s += 4;
|
||||
}
|
||||
else
|
||||
{
|
||||
ch = *s++;
|
||||
}
|
||||
|
||||
if (i >= (sizeof(_pdfio_cp1252) / sizeof(_pdfio_cp1252[0])))
|
||||
ch = '?'; // Unsupported chars map to ?
|
||||
}
|
||||
if (ch > 255)
|
||||
{
|
||||
// Try mapping from Unicode to CP1252...
|
||||
size_t i; // Looping var
|
||||
|
||||
for (i = 0; i < (sizeof(_pdfio_cp1252) / sizeof(_pdfio_cp1252[0])); i ++)
|
||||
{
|
||||
if (ch == _pdfio_cp1252[i])
|
||||
break;
|
||||
}
|
||||
|
||||
if (i < (sizeof(_pdfio_cp1252) / sizeof(_pdfio_cp1252[0])))
|
||||
ch = i + 0x80; // Extra characters from 0x80 to 0x9f
|
||||
else
|
||||
ch = '?'; // Unsupported chars map to ?
|
||||
}
|
||||
|
||||
if (ch < 128)
|
||||
{
|
||||
// ASCII
|
||||
*tempptr++ = (char)ch;
|
||||
}
|
||||
else if (ch < 2048)
|
||||
{
|
||||
// 2-byte UTF-8
|
||||
*tempptr++ = (char)(0xc0 | ((ch >> 6) & 0x1f));
|
||||
*tempptr++ = (char)(0x80 | (ch & 0x3f));
|
||||
}
|
||||
else
|
||||
{
|
||||
// 3-byte UTF-8
|
||||
*tempptr++ = (char)(0xe0 | ((ch >> 12) & 0x0f));
|
||||
*tempptr++ = (char)(0x80 | ((ch >> 6) & 0x3f));
|
||||
*tempptr++ = (char)(0x80 | (ch & 0x3f));
|
||||
}
|
||||
|
||||
*tempptr = '\0';
|
||||
s = temp;
|
||||
}
|
||||
|
||||
*tempptr = '\0';
|
||||
s = temp;
|
||||
// Choose the appropriate table...
|
||||
if (!strcmp(basefont, "Courier"))
|
||||
widths = courier_widths;
|
||||
else if (!strcmp(basefont, "Courier-Bold"))
|
||||
widths = courier_bold_widths;
|
||||
else if (!strcmp(basefont, "Courier-BoldOblique"))
|
||||
widths = courier_boldoblique_widths;
|
||||
else if (!strcmp(basefont, "Courier-Oblique"))
|
||||
widths = courier_oblique_widths;
|
||||
else if (!strcmp(basefont, "Helvetica"))
|
||||
widths = helvetica_widths;
|
||||
else if (!strcmp(basefont, "Helvetica-Bold"))
|
||||
widths = helvetica_bold_widths;
|
||||
else if (!strcmp(basefont, "Helvetica-BoldOblique"))
|
||||
widths = helvetica_boldoblique_widths;
|
||||
else if (!strcmp(basefont, "Helvetica-Oblique"))
|
||||
widths = helvetica_oblique_widths;
|
||||
else if (!strcmp(basefont, "Symbol"))
|
||||
widths = symbol_widths;
|
||||
else if (!strcmp(basefont, "Times-Bold"))
|
||||
widths = times_bold_widths;
|
||||
else if (!strcmp(basefont, "Times-BoldItalic"))
|
||||
widths = times_bolditalic_widths;
|
||||
else if (!strcmp(basefont, "Times-Italic"))
|
||||
widths = times_italic_widths;
|
||||
else if (!strcmp(basefont, "Times-Roman"))
|
||||
widths = times_roman_widths;
|
||||
else if (!strcmp(basefont, "Zapf-Dingbats"))
|
||||
widths = zapf_dingbats_widths;
|
||||
else
|
||||
return (0.0);
|
||||
|
||||
// Calculate the width using the corresponding table...
|
||||
while (*s)
|
||||
{
|
||||
width += widths[*s & 255];
|
||||
s ++;
|
||||
}
|
||||
|
||||
return (size * 0.001 * width);
|
||||
}
|
||||
|
||||
// If we get here then we need to measure using the TrueType library...
|
||||
ttfGetExtents(ttf, (float)size, s, &extents);
|
||||
|
||||
return (extents.right - extents.left);
|
||||
@ -1421,8 +1456,9 @@ pdfioContentTextShowJustified(
|
||||
// - "Times-Roman"
|
||||
// - "ZapfDingbats"
|
||||
//
|
||||
// Base fonts always use the Windows CP1252 (ISO-8859-1 with additional
|
||||
// characters such as the Euro symbol) subset of Unicode.
|
||||
// Aside from "Symbol" and "Zapf-Dingbats", Base fonts use the Windows CP1252
|
||||
// (ISO-8859-1 with additional characters such as the Euro symbol) subset of
|
||||
// Unicode.
|
||||
//
|
||||
|
||||
pdfio_obj_t * // O - Font object
|
||||
|
||||
45
pdfio-dict.c
45
pdfio-dict.c
@ -1,7 +1,7 @@
|
||||
//
|
||||
// PDF dictionary functions for PDFio.
|
||||
//
|
||||
// Copyright © 2021-2023 by Michael R Sweet.
|
||||
// Copyright © 2021-2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
@ -18,19 +18,22 @@ static int compare_pairs(_pdfio_pair_t *a, _pdfio_pair_t *b);
|
||||
|
||||
|
||||
//
|
||||
// '_pdfioDictClear()' - Remove a key/value pair from a dictionary.
|
||||
// 'pdfioDictClear()' - Remove a key/value pair from a dictionary.
|
||||
//
|
||||
|
||||
void
|
||||
_pdfioDictClear(pdfio_dict_t *dict, // I - Dictionary
|
||||
const char *key) // I - Key
|
||||
bool // O - `true` if cleared, `false` otherwise
|
||||
pdfioDictClear(pdfio_dict_t *dict, // I - Dictionary
|
||||
const char *key) // I - Key
|
||||
{
|
||||
size_t idx; // Index into pairs
|
||||
_pdfio_pair_t *pair, // Current pair
|
||||
pkey; // Search key
|
||||
|
||||
|
||||
PDFIO_DEBUG("_pdfioDictClear(dict=%p, key=\"%s\")\n", dict, key);
|
||||
PDFIO_DEBUG("pdfioDictClear(dict=%p, key=\"%s\")\n", dict, key);
|
||||
|
||||
if (!dict || !key)
|
||||
return (false);
|
||||
|
||||
// See if the key is already set...
|
||||
if (dict->num_pairs > 0)
|
||||
@ -48,8 +51,12 @@ _pdfioDictClear(pdfio_dict_t *dict, // I - Dictionary
|
||||
|
||||
if (idx < dict->num_pairs)
|
||||
memmove(pair, pair + 1, (dict->num_pairs - idx) * sizeof(_pdfio_pair_t));
|
||||
|
||||
return (true);
|
||||
}
|
||||
}
|
||||
|
||||
return (false);
|
||||
}
|
||||
|
||||
|
||||
@ -194,6 +201,9 @@ _pdfioDictDebug(pdfio_dict_t *dict, // I - Dictionary
|
||||
_pdfio_pair_t *pair; // Current pair
|
||||
|
||||
|
||||
if (!dict)
|
||||
return;
|
||||
|
||||
for (i = dict->num_pairs, pair = dict->pairs; i > 0; i --, pair ++)
|
||||
{
|
||||
fprintf(fp, "/%s", pair->key);
|
||||
@ -332,6 +342,18 @@ pdfioDictGetDict(pdfio_dict_t *dict, // I - Dictionary
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioDictGetKey()' - Get the key for the specified pair.
|
||||
//
|
||||
|
||||
const char * // O - Key for specified pair
|
||||
pdfioDictGetKey(pdfio_dict_t *dict, // I - Dictionary
|
||||
size_t n) // I - Pair index (`0`-based)
|
||||
{
|
||||
return ((dict && n < dict->num_pairs) ? dict->pairs[n].key : NULL);
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioDictGetName()' - Get a key name value from a dictionary.
|
||||
//
|
||||
@ -350,6 +372,17 @@ pdfioDictGetName(pdfio_dict_t *dict, // I - Dictionary
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioDictGetNumPairs()' - Get the number of key/value pairs in a dictionary.
|
||||
//
|
||||
|
||||
size_t // O - Number of pairs
|
||||
pdfioDictGetNumPairs(pdfio_dict_t *dict)// I - Dictionary
|
||||
{
|
||||
return (dict ? dict->num_pairs : 0);
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioDictGetNumber()' - Get a key number value from a dictionary.
|
||||
//
|
||||
|
||||
53
pdfio-file.c
53
pdfio-file.c
@ -188,6 +188,8 @@ pdfioFileCreate(
|
||||
int fd; // File descriptor
|
||||
|
||||
|
||||
PDFIO_DEBUG("pdfioFileCreate(filename=\"%s\", version=\"%s\", media_box=%p, crop_box=%p, error_cb=%p, error_cbdata=%p)\n", filename, version, (void *)media_box, (void *)crop_box, (void *)error_cb, (void *)error_cbdata);
|
||||
|
||||
// Range check input...
|
||||
if (!filename)
|
||||
return (NULL);
|
||||
@ -242,6 +244,35 @@ pdfioFileCreateArrayObj(
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioFileCreateNameObj()' - Create a new object in a PDF file containing a name.
|
||||
//
|
||||
// This function creates a new object with a name value in a PDF file.
|
||||
// You must call @link pdfioObjClose@ to write the object to the file.
|
||||
//
|
||||
|
||||
pdfio_obj_t * // O - New object
|
||||
pdfioFileCreateNameObj(
|
||||
pdfio_file_t *pdf, // I - PDF file
|
||||
const char *name) // I - Name value
|
||||
{
|
||||
_pdfio_value_t value; // Object value
|
||||
|
||||
|
||||
// Range check input...
|
||||
if (!pdf || !name)
|
||||
return (NULL);
|
||||
|
||||
value.type = PDFIO_VALTYPE_NAME;
|
||||
value.value.name = pdfioStringCreate(pdf, name);
|
||||
|
||||
if (!value.value.name)
|
||||
return (NULL);
|
||||
|
||||
return (_pdfioFileCreateObj(pdf, NULL, &value));
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioFileCreateNumberObj()' - Create a new object in a PDF file containing a number.
|
||||
//
|
||||
@ -390,6 +421,8 @@ pdfioFileCreateOutput(
|
||||
pdfio_error_cb_t error_cb, // I - Error callback or `NULL` for default
|
||||
void *error_cbdata) // I - Error callback data, if any
|
||||
{
|
||||
PDFIO_DEBUG("pdfioFileCreate(output_cb=%p, output_cbdata=%p, version=\"%s\", media_box=%p, crop_box=%p, error_cb=%p, error_cbdata=%p)\n", (void *)output_cb, (void *)output_cbdata, version, (void *)media_box, (void *)crop_box, (void *)error_cb, (void *)error_cbdata);
|
||||
|
||||
return (create_common("output.pdf", /*fd*/-1, output_cb, output_cbdata, version, media_box, crop_box, error_cb, error_cbdata));
|
||||
}
|
||||
|
||||
@ -524,6 +557,8 @@ pdfioFileCreateTemporary(
|
||||
unsigned tmpnum; // Temporary filename number
|
||||
|
||||
|
||||
PDFIO_DEBUG("pdfioFileCreate(buffer=%p, bufsize=%lu, version=\"%s\", media_box=%p, crop_box=%p, error_cb=%p, error_cbdata=%p)\n", (void *)buffer, (unsigned long)bufsize, version, (void *)media_box, (void *)crop_box, (void *)error_cb, (void *)error_cbdata);
|
||||
|
||||
// Range check input...
|
||||
if (!buffer || bufsize < 32)
|
||||
{
|
||||
@ -648,11 +683,12 @@ pdfioFileFindObj(
|
||||
if ((current = number - 1) >= pdf->num_objs)
|
||||
current = pdf->num_objs / 2;
|
||||
|
||||
PDFIO_DEBUG("pdfioFileFindObj: objs[current=%lu]=%p\n", (unsigned long)current, (void *)pdf->objs[current]);
|
||||
PDFIO_DEBUG("pdfioFileFindObj: objs[current=%lu]=%p(%lu)\n", (unsigned long)current, (void *)pdf->objs[current], (unsigned long)(pdf->objs[current] ? pdf->objs[current]->number : 0));
|
||||
|
||||
if (number == pdf->objs[current]->number)
|
||||
{
|
||||
// Fast match...
|
||||
PDFIO_DEBUG("pdfioFileFindObj: Returning %lu (%p)\n", (unsigned long)current, pdf->objs[current]);
|
||||
return (pdf->objs[current]);
|
||||
}
|
||||
else if (number < pdf->objs[current]->number)
|
||||
@ -679,11 +715,20 @@ pdfioFileFindObj(
|
||||
}
|
||||
|
||||
if (number == pdf->objs[left]->number)
|
||||
{
|
||||
PDFIO_DEBUG("pdfioFileFindObj: Returning %lu (%p)\n", (unsigned long)left, pdf->objs[left]);
|
||||
return (pdf->objs[left]);
|
||||
}
|
||||
else if (number == pdf->objs[right]->number)
|
||||
{
|
||||
PDFIO_DEBUG("pdfioFileFindObj: Returning %lu (%p)\n", (unsigned long)right, pdf->objs[right]);
|
||||
return (pdf->objs[right]);
|
||||
}
|
||||
else
|
||||
{
|
||||
PDFIO_DEBUG("pdfioFileFindObj: Returning NULL\n");
|
||||
return (NULL);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -928,6 +973,8 @@ pdfioFileOpen(
|
||||
off_t xref_offset; // Offset to xref table
|
||||
|
||||
|
||||
PDFIO_DEBUG("pdfioFileOpen(filename=\"%s\", password_cb=%p, password_cbdata=%p, error_cb=%p, error_cbdata=%p)\n", filename, (void *)password_cb, (void *)password_cbdata, (void *)error_cb, (void *)error_cbdata);
|
||||
|
||||
// Range check input...
|
||||
if (!filename)
|
||||
return (NULL);
|
||||
@ -1285,6 +1332,8 @@ create_common(
|
||||
unsigned char id_value[16]; // File ID value
|
||||
|
||||
|
||||
PDFIO_DEBUG("create_common(filename=\"%s\", fd=%d, output_cb=%p, output_cbdata=%p, version=\"%s\", media_box=%p, crop_box=%p, error_cb=%p, error_cbdata=%p)\n", filename, fd, (void *)output_cb, (void *)output_cbdata, version, (void *)media_box, (void *)crop_box, (void *)error_cb, (void *)error_cbdata);
|
||||
|
||||
// Range check input...
|
||||
if (!filename || (fd < 0 && !output_cb))
|
||||
return (NULL);
|
||||
@ -1928,7 +1977,7 @@ load_xref(
|
||||
{
|
||||
PDFIO_DEBUG("load_xref: '%s' at offset %lu\n", line, (unsigned long)trailer_offset);
|
||||
|
||||
if (!strncmp(line, "trailer", 7) && (!line[7] || isspace(line[7] & 255)))
|
||||
if (!strncmp(line, "trailer", 7) && (!line[7] || isspace(line[7] & 255) || line[7] == '<'))
|
||||
{
|
||||
if (line[7])
|
||||
{
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
//
|
||||
// PDF object functions for PDFio.
|
||||
//
|
||||
// Copyright © 2021-2023 by Michael R Sweet.
|
||||
// Copyright © 2021-2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
@ -99,7 +99,7 @@ pdfioObjCopy(pdfio_file_t *pdf, // I - PDF file
|
||||
return (NULL);
|
||||
|
||||
if (dstobj->value.type == PDFIO_VALTYPE_DICT)
|
||||
_pdfioDictClear(dstobj->value.value.dict, "Length");
|
||||
pdfioDictClear(dstobj->value.value.dict, "Length");
|
||||
|
||||
if (srcobj->stream_offset)
|
||||
{
|
||||
@ -333,6 +333,26 @@ pdfioObjGetLength(pdfio_obj_t *obj) // I - Object
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioObjGetName()' - Get the name value associated with an object.
|
||||
//
|
||||
|
||||
const char * // O - Dictionary or `NULL` on error
|
||||
pdfioObjGetName(pdfio_obj_t *obj) // I - Object
|
||||
{
|
||||
if (!obj)
|
||||
return (NULL);
|
||||
|
||||
if (obj->value.type == PDFIO_VALTYPE_NONE)
|
||||
_pdfioObjLoad(obj);
|
||||
|
||||
if (obj->value.type == PDFIO_VALTYPE_NAME)
|
||||
return (obj->value.value.name);
|
||||
else
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'pdfioObjGetNumber()' - Get the object's number.
|
||||
//
|
||||
@ -347,8 +367,21 @@ pdfioObjGetNumber(pdfio_obj_t *obj) // I - Object
|
||||
//
|
||||
// 'pdfioObjGetSubtype()' - Get an object's subtype.
|
||||
//
|
||||
// This function returns an object's PDF subtype name, if any. Common subtype
|
||||
// names include:
|
||||
//
|
||||
// - "CIDFontType0": A CID Type0 font
|
||||
// - "CIDFontType2": A CID TrueType font
|
||||
// - "Image": An image or image mask
|
||||
// - "Form": A fillable form
|
||||
// - "OpenType": An OpenType font
|
||||
// - "Type0": A composite font
|
||||
// - "Type1": A PostScript Type1 font
|
||||
// - "Type3": A PDF Type3 font
|
||||
// - "TrueType": A TrueType font
|
||||
//
|
||||
|
||||
const char * // O - Object subtype
|
||||
const char * // O - Object subtype name or `NULL` for none
|
||||
pdfioObjGetSubtype(pdfio_obj_t *obj) // I - Object
|
||||
{
|
||||
pdfio_dict_t *dict; // Object dictionary
|
||||
@ -364,8 +397,21 @@ pdfioObjGetSubtype(pdfio_obj_t *obj) // I - Object
|
||||
//
|
||||
// 'pdfioObjGetType()' - Get an object's type.
|
||||
//
|
||||
// This function returns an object's PDF type name, if any. Common type names
|
||||
// include:
|
||||
//
|
||||
// - "CMap": A character map for composite fonts
|
||||
// - "Font": An embedded font (@link pdfioObjGetSubtype@ will tell you the
|
||||
// font format)
|
||||
// - "FontDescriptor": A font descriptor
|
||||
// - "Page": A (visible) page
|
||||
// - "Pages": A page tree node
|
||||
// - "Template": An invisible template page
|
||||
// - "XObject": An image, image mask, or form (@link pdfioObjGetSubtype@ will
|
||||
// tell you which)
|
||||
//
|
||||
|
||||
const char * // O - Object type
|
||||
const char * // O - Object type name or `NULL` for none
|
||||
pdfioObjGetType(pdfio_obj_t *obj) // I - Object
|
||||
{
|
||||
pdfio_dict_t *dict; // Object dictionary
|
||||
|
||||
@ -353,7 +353,6 @@ extern void _pdfioCryptoSHA256Init(_pdfio_sha256_t *ctx) _PDFIO_INTERNAL;
|
||||
extern void _pdfioCryptoSHA256Finish(_pdfio_sha256_t *ctx, uint8_t *Message_Digest) _PDFIO_INTERNAL;
|
||||
extern bool _pdfioCryptoUnlock(pdfio_file_t *pdf, pdfio_password_cb_t password_cb, void *password_data) _PDFIO_INTERNAL;
|
||||
|
||||
extern void _pdfioDictClear(pdfio_dict_t *dict, const char *key) _PDFIO_INTERNAL;
|
||||
extern bool _pdfioDictDecrypt(pdfio_file_t *pdf, pdfio_obj_t *obj, pdfio_dict_t *dict, size_t depth) _PDFIO_INTERNAL;
|
||||
extern void _pdfioDictDebug(pdfio_dict_t *dict, FILE *fp) _PDFIO_INTERNAL;
|
||||
extern void _pdfioDictDelete(pdfio_dict_t *dict) _PDFIO_INTERNAL;
|
||||
|
||||
@ -408,6 +408,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
|
||||
pdfio_stream_t *st; // Stream
|
||||
pdfio_dict_t *dict = pdfioObjGetDict(obj);
|
||||
// Object dictionary
|
||||
const char *type; // Object type
|
||||
|
||||
|
||||
PDFIO_DEBUG("_pdfioStreamOpen(obj=%p(%u), decode=%s)\n", obj, (unsigned)obj->number, decode ? "true" : "false");
|
||||
@ -434,7 +435,9 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
if (obj->pdf->encryption)
|
||||
type = pdfioObjGetType(obj);
|
||||
|
||||
if (obj->pdf->encryption && (!type || strcmp(type, "XRef")))
|
||||
{
|
||||
uint8_t iv[64]; // Initialization vector
|
||||
size_t ivlen; // Length of initialization vector, if any
|
||||
@ -1061,19 +1064,11 @@ stream_read(pdfio_stream_t *st, // I - Stream
|
||||
st->flate.next_out = (Bytef *)buffer;
|
||||
st->flate.avail_out = (uInt)bytes;
|
||||
|
||||
avail_in = st->flate.avail_in;
|
||||
avail_out = st->flate.avail_out;
|
||||
|
||||
if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK)
|
||||
{
|
||||
_pdfioFileError(st->pdf, "Unable to decompress stream data for object %ld: %s", (long)st->obj->number, zstrerror(status));
|
||||
return (-1);
|
||||
}
|
||||
else if (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out)
|
||||
{
|
||||
_pdfioFileError(st->pdf, "Corrupt stream data.");
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (st->flate.next_out - (Bytef *)buffer);
|
||||
}
|
||||
|
||||
@ -215,6 +215,9 @@ void
|
||||
_pdfioValueDebug(_pdfio_value_t *v, // I - Value
|
||||
FILE *fp) // I - Output file
|
||||
{
|
||||
if (!v)
|
||||
return;
|
||||
|
||||
switch (v->type)
|
||||
{
|
||||
case PDFIO_VALTYPE_ARRAY :
|
||||
|
||||
8
pdfio.h
8
pdfio.h
@ -23,7 +23,7 @@ extern "C" {
|
||||
// Version number...
|
||||
//
|
||||
|
||||
# define PDFIO_VERSION "1.3.1"
|
||||
# define PDFIO_VERSION "1.4.0"
|
||||
|
||||
|
||||
//
|
||||
@ -151,7 +151,9 @@ extern pdfio_obj_t *pdfioArrayGetObj(pdfio_array_t *a, size_t n) _PDFIO_PUBLIC;
|
||||
extern size_t pdfioArrayGetSize(pdfio_array_t *a) _PDFIO_PUBLIC;
|
||||
extern const char *pdfioArrayGetString(pdfio_array_t *a, size_t n) _PDFIO_PUBLIC;
|
||||
extern pdfio_valtype_t pdfioArrayGetType(pdfio_array_t *a, size_t n) _PDFIO_PUBLIC;
|
||||
extern bool pdfioArrayRemove(pdfio_array_t *a, size_t n) _PDFIO_PUBLIC;
|
||||
|
||||
extern bool pdfioDictClear(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
extern pdfio_dict_t *pdfioDictCopy(pdfio_file_t *pdf, pdfio_dict_t *dict) _PDFIO_PUBLIC;
|
||||
extern pdfio_dict_t *pdfioDictCreate(pdfio_file_t *pdf) _PDFIO_PUBLIC;
|
||||
extern pdfio_array_t *pdfioDictGetArray(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
@ -159,7 +161,9 @@ extern unsigned char *pdfioDictGetBinary(pdfio_dict_t *dict, const char *key, si
|
||||
extern bool pdfioDictGetBoolean(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
extern time_t pdfioDictGetDate(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
extern pdfio_dict_t *pdfioDictGetDict(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
extern const char *pdfioDictGetKey(pdfio_dict_t *dict, size_t n) _PDFIO_PUBLIC;
|
||||
extern const char *pdfioDictGetName(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
extern size_t pdfioDictGetNumPairs(pdfio_dict_t *dict) _PDFIO_PUBLIC;
|
||||
extern double pdfioDictGetNumber(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
extern pdfio_obj_t *pdfioDictGetObj(pdfio_dict_t *dict, const char *key) _PDFIO_PUBLIC;
|
||||
extern pdfio_rect_t *pdfioDictGetRect(pdfio_dict_t *dict, const char *key, pdfio_rect_t *rect) _PDFIO_PUBLIC;
|
||||
@ -182,6 +186,7 @@ extern bool pdfioDictSetStringf(pdfio_dict_t *dict, const char *key, const char
|
||||
extern bool pdfioFileClose(pdfio_file_t *pdf) _PDFIO_PUBLIC;
|
||||
extern pdfio_file_t *pdfioFileCreate(const char *filename, const char *version, pdfio_rect_t *media_box, pdfio_rect_t *crop_box, pdfio_error_cb_t error_cb, void *error_data) _PDFIO_PUBLIC;
|
||||
extern pdfio_obj_t *pdfioFileCreateArrayObj(pdfio_file_t *pdf, pdfio_array_t *array) _PDFIO_PUBLIC;
|
||||
extern pdfio_obj_t *pdfioFileCreateNameObj(pdfio_file_t *pdf, const char *name) _PDFIO_PUBLIC;
|
||||
extern pdfio_obj_t *pdfioFileCreateNumberObj(pdfio_file_t *pdf, double number) _PDFIO_PUBLIC;
|
||||
extern pdfio_obj_t *pdfioFileCreateObj(pdfio_file_t *pdf, pdfio_dict_t *dict) _PDFIO_PUBLIC;
|
||||
extern pdfio_file_t *pdfioFileCreateOutput(pdfio_output_cb_t output_cb, void *output_ctx, const char *version, pdfio_rect_t *media_box, pdfio_rect_t *crop_box, pdfio_error_cb_t error_cb, void *error_data) _PDFIO_PUBLIC;
|
||||
@ -222,6 +227,7 @@ extern pdfio_array_t *pdfioObjGetArray(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
extern pdfio_dict_t *pdfioObjGetDict(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
extern unsigned short pdfioObjGetGeneration(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
extern size_t pdfioObjGetLength(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
extern const char *pdfioObjGetName(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
extern size_t pdfioObjGetNumber(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
extern const char *pdfioObjGetSubtype(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
extern const char *pdfioObjGetType(pdfio_obj_t *obj) _PDFIO_PUBLIC;
|
||||
|
||||
15
pdfio1.def
15
pdfio1.def
@ -1,7 +1,8 @@
|
||||
LIBRARY pdfio1
|
||||
VERSION 1.2
|
||||
VERSION 1.4
|
||||
EXPORTS
|
||||
_pdfioArrayDebug
|
||||
_pdfioArrayDecrypt
|
||||
_pdfioArrayDelete
|
||||
_pdfioArrayGetValue
|
||||
_pdfioArrayRead
|
||||
@ -22,8 +23,8 @@ _pdfioCryptoSHA256Append
|
||||
_pdfioCryptoSHA256Finish
|
||||
_pdfioCryptoSHA256Init
|
||||
_pdfioCryptoUnlock
|
||||
_pdfioDictClear
|
||||
_pdfioDictDebug
|
||||
_pdfioDictDecrypt
|
||||
_pdfioDictDelete
|
||||
_pdfioDictGetValue
|
||||
_pdfioDictRead
|
||||
@ -61,9 +62,12 @@ _pdfioTokenPush
|
||||
_pdfioTokenRead
|
||||
_pdfioValueCopy
|
||||
_pdfioValueDebug
|
||||
_pdfioValueDecrypt
|
||||
_pdfioValueDelete
|
||||
_pdfioValueRead
|
||||
_pdfioValueWrite
|
||||
_pdfio_strtod
|
||||
_pdfio_vsnprintf
|
||||
pdfioArrayAppendArray
|
||||
pdfioArrayAppendBinary
|
||||
pdfioArrayAppendBoolean
|
||||
@ -91,6 +95,7 @@ pdfioArrayGetObj
|
||||
pdfioArrayGetSize
|
||||
pdfioArrayGetString
|
||||
pdfioArrayGetType
|
||||
pdfioArrayRemove
|
||||
pdfioContentClip
|
||||
pdfioContentDrawImage
|
||||
pdfioContentFill
|
||||
@ -148,6 +153,7 @@ pdfioContentTextNextLine
|
||||
pdfioContentTextShow
|
||||
pdfioContentTextShowJustified
|
||||
pdfioContentTextShowf
|
||||
pdfioDictClear
|
||||
pdfioDictCopy
|
||||
pdfioDictCreate
|
||||
pdfioDictGetArray
|
||||
@ -155,7 +161,9 @@ pdfioDictGetBinary
|
||||
pdfioDictGetBoolean
|
||||
pdfioDictGetDate
|
||||
pdfioDictGetDict
|
||||
pdfioDictGetKey
|
||||
pdfioDictGetName
|
||||
pdfioDictGetNumPairs
|
||||
pdfioDictGetNumber
|
||||
pdfioDictGetObj
|
||||
pdfioDictGetRect
|
||||
@ -182,6 +190,7 @@ pdfioFileCreateFontObjFromFile
|
||||
pdfioFileCreateICCObjFromFile
|
||||
pdfioFileCreateImageObjFromData
|
||||
pdfioFileCreateImageObjFromFile
|
||||
pdfioFileCreateNameObj
|
||||
pdfioFileCreateNumberObj
|
||||
pdfioFileCreateObj
|
||||
pdfioFileCreateOutput
|
||||
@ -190,6 +199,7 @@ pdfioFileCreateStringObj
|
||||
pdfioFileCreateTemporary
|
||||
pdfioFileFindObj
|
||||
pdfioFileGetAuthor
|
||||
pdfioFileGetCatalog
|
||||
pdfioFileGetCreationDate
|
||||
pdfioFileGetCreator
|
||||
pdfioFileGetID
|
||||
@ -222,6 +232,7 @@ pdfioObjGetArray
|
||||
pdfioObjGetDict
|
||||
pdfioObjGetGeneration
|
||||
pdfioObjGetLength
|
||||
pdfioObjGetName
|
||||
pdfioObjGetNumber
|
||||
pdfioObjGetSubtype
|
||||
pdfioObjGetType
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
<metadata>
|
||||
<id>pdfio_native</id>
|
||||
<title>PDFio Library for VS2019+</title>
|
||||
<version>1.3.1</version>
|
||||
<version>1.3.2</version>
|
||||
<authors>Michael R Sweet</authors>
|
||||
<owners>michaelrsweet</owners>
|
||||
<projectUrl>https://github.com/michaelrsweet/pappl</projectUrl>
|
||||
@ -16,7 +16,7 @@
|
||||
<copyright>Copyright © 2019-2024 by Michael R Sweet</copyright>
|
||||
<tags>pdf file native</tags>
|
||||
<dependencies>
|
||||
<dependency id="pdfio_native.redist" version="1.3.1" />
|
||||
<dependency id="pdfio_native.redist" version="1.3.2" />
|
||||
<dependency id="zlib_native.redist" version="1.2.11" />
|
||||
</dependencies>
|
||||
</metadata>
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
<metadata>
|
||||
<id>pdfio_native.redist</id>
|
||||
<title>PDFio Library for VS2019+</title>
|
||||
<version>1.3.1</version>
|
||||
<version>1.3.2</version>
|
||||
<authors>Michael R Sweet</authors>
|
||||
<owners>michaelrsweet</owners>
|
||||
<projectUrl>https://github.com/michaelrsweet/pappl</projectUrl>
|
||||
|
||||
57
testpdfio.c
57
testpdfio.c
@ -27,7 +27,7 @@
|
||||
//
|
||||
|
||||
static int do_crypto_tests(void);
|
||||
static int do_test_file(const char *filename, int objnum, bool verbose);
|
||||
static int do_test_file(const char *filename, int objnum, const char *password, bool verbose);
|
||||
static int do_unit_tests(void);
|
||||
static int draw_image(pdfio_stream_t *st, const char *name, double x, double y, double w, double h, const char *label);
|
||||
static bool error_cb(pdfio_file_t *pdf, const char *message, bool *error);
|
||||
@ -37,6 +37,7 @@ static const char *password_cb(void *data, const char *filename);
|
||||
static int read_unit_file(const char *filename, size_t num_pages, size_t first_image, bool is_output);
|
||||
static ssize_t token_consume_cb(const char **s, size_t bytes);
|
||||
static ssize_t token_peek_cb(const char **s, char *buffer, size_t bytes);
|
||||
static int usage(FILE *fp);
|
||||
static int verify_image(pdfio_file_t *pdf, size_t number);
|
||||
static int write_alpha_test(pdfio_file_t *pdf, int number, pdfio_obj_t *font);
|
||||
static int write_color_patch(pdfio_stream_t *st, bool device);
|
||||
@ -59,22 +60,33 @@ int // O - Exit status
|
||||
main(int argc, // I - Number of command-line arguments
|
||||
char *argv[]) // I - Command-line arguments
|
||||
{
|
||||
int ret = 0; // Return value
|
||||
int ret = 0; // Return value
|
||||
|
||||
|
||||
fprintf(stderr, "testpdfio: Test locale is \"%s\".\n", setlocale(LC_ALL, getenv("LANG")));
|
||||
|
||||
if (argc > 1)
|
||||
{
|
||||
int i; // Looping var
|
||||
const char *password = NULL; // Password
|
||||
bool verbose = false; // Be verbose?
|
||||
|
||||
for (i = 1; i < argc; i ++)
|
||||
{
|
||||
if (!strcmp(argv[i], "--help"))
|
||||
{
|
||||
puts("Usage: ./testpdfio [--help] [--verbose] [filename [objnum] ...]");
|
||||
return (0);
|
||||
return (usage(stdout));
|
||||
}
|
||||
else if (!strcmp(argv[i], "--password"))
|
||||
{
|
||||
i ++;
|
||||
if (i < argc)
|
||||
{
|
||||
password = argv[i];
|
||||
}
|
||||
else
|
||||
{
|
||||
fputs("testpdfio: Missing password after '--password'.\n", stderr);
|
||||
return (usage(stderr));
|
||||
}
|
||||
}
|
||||
else if (!strcmp(argv[i], "--verbose"))
|
||||
{
|
||||
@ -82,24 +94,27 @@ main(int argc, // I - Number of command-line arguments
|
||||
}
|
||||
else if (argv[i][0] == '-')
|
||||
{
|
||||
printf("Unknown option '%s'.\n\n", argv[i]);
|
||||
puts("Usage: ./testpdfio [--help] [--verbose] [filename [objnum] ...]");
|
||||
return (1);
|
||||
fprintf(stderr, "testpdfio: Unknown option '%s'.\n", argv[i]);
|
||||
return (usage(stderr));
|
||||
}
|
||||
else if ((i + 1) < argc && isdigit(argv[i + 1][0] & 255))
|
||||
{
|
||||
// filename.pdf object-number
|
||||
if (do_test_file(argv[i], atoi(argv[i + 1]), verbose))
|
||||
if (do_test_file(argv[i], atoi(argv[i + 1]), password, verbose))
|
||||
ret = 1;
|
||||
|
||||
i ++;
|
||||
}
|
||||
else if (do_test_file(argv[i], 0, verbose))
|
||||
else if (do_test_file(argv[i], 0, password, verbose))
|
||||
{
|
||||
ret = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "testpdfio: Test locale is \"%s\".\n", setlocale(LC_ALL, getenv("LANG")));
|
||||
|
||||
#if _WIN32
|
||||
// Windows puts executables in Platform/Configuration subdirs...
|
||||
if (!_access("../../testfiles", 0))
|
||||
@ -363,6 +378,7 @@ do_crypto_tests(void)
|
||||
static int // O - Exit status
|
||||
do_test_file(const char *filename, // I - PDF filename
|
||||
int objnum, // I - Object number to dump, if any
|
||||
const char *password, // I - Password for file
|
||||
bool verbose) // I - Be verbose?
|
||||
{
|
||||
bool error = false; // Have we shown an error yet?
|
||||
@ -381,7 +397,7 @@ do_test_file(const char *filename, // I - PDF filename
|
||||
fflush(stdout);
|
||||
}
|
||||
|
||||
if ((pdf = pdfioFileOpen(filename, /*password_cb*/NULL, /*password_data*/NULL, (pdfio_error_cb_t)error_cb, &error)) != NULL)
|
||||
if ((pdf = pdfioFileOpen(filename, password_cb, (void *)password, (pdfio_error_cb_t)error_cb, &error)) != NULL)
|
||||
{
|
||||
if (objnum)
|
||||
{
|
||||
@ -1559,6 +1575,23 @@ token_peek_cb(const char **s, // IO - Test string
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'usage()' - Show program usage.
|
||||
//
|
||||
|
||||
static int // O - Exit status
|
||||
usage(FILE *fp) // I - Output file
|
||||
{
|
||||
fputs("Usage: ./testpdfio [OPTIONS] [FILENAME [OBJNUM]] ...\n", fp);
|
||||
fputs("Options:\n", fp);
|
||||
fputs(" --help Show program help.\n", fp);
|
||||
fputs(" --password PASSWORD Set PDF password.\n", fp);
|
||||
fputs(" --verbose Be verbose.\n", fp);
|
||||
|
||||
return (fp != stdout);
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// 'verify_image()' - Verify an image object.
|
||||
//
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
//
|
||||
// https://github.com/michaelrsweet/ttf
|
||||
//
|
||||
// Copyright © 2018-2023 by Michael R Sweet.
|
||||
// Copyright © 2018-2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
@ -120,6 +120,7 @@ test_font(const char *filename) // I - Font filename
|
||||
|
||||
|
||||
printf("ttfCreate(\"%s\"): ", filename);
|
||||
fflush(stdout);
|
||||
if ((font = ttfCreate(filename, 0, error_cb, NULL)) != NULL)
|
||||
puts("PASS");
|
||||
else
|
||||
|
||||
100
ttf.c
100
ttf.c
@ -62,7 +62,7 @@
|
||||
# define O_CREAT _O_CREAT
|
||||
# define O_TRUNC _O_TRUNC
|
||||
|
||||
typedef __int64 ssize_t; // POSIX type not present on Windows...
|
||||
typedef __int64 ssize_t; // POSIX type not present on Windows... @private@
|
||||
|
||||
#else
|
||||
# include <unistd.h>
|
||||
@ -100,6 +100,8 @@ typedef __int64 ssize_t; // POSIX type not present on Windows...
|
||||
|
||||
#define TTF_FONT_MAX_CHAR 262144 // Maximum number of character values
|
||||
#define TTF_FONT_MAX_GROUPS 65536 // Maximum number of sub-groups
|
||||
#define TTF_FONT_MAX_NAMES 16777216// Maximum size of names table we support
|
||||
|
||||
|
||||
//
|
||||
// TTF/OFF tag constants...
|
||||
@ -254,7 +256,7 @@ typedef struct _ttf_off_hhea_s // Horizontal header
|
||||
{
|
||||
short ascender, // Ascender
|
||||
descender; // Descender
|
||||
int numberOfHMetrics; // Number of horizontal metrics
|
||||
unsigned short numberOfHMetrics; // Number of horizontal metrics
|
||||
} _ttf_off_hhea_t;
|
||||
|
||||
typedef struct _ttf_off_os_2_s // OS/2 information
|
||||
@ -297,7 +299,28 @@ static unsigned seek_table(ttf_t *font, unsigned tag, unsigned offset, bool requ
|
||||
|
||||
|
||||
//
|
||||
// 'ttfCreate()' - Create a new font object for the named font family.
|
||||
// 'ttfCreate()' - Create a new font object for the named font file.
|
||||
//
|
||||
// This function creates a new font object for the named TrueType or OpenType
|
||||
// font file or collection. The "filename" argument specifies the name of the
|
||||
// file to read.
|
||||
//
|
||||
// The "idx" argument specifies the font to load from a collection - the first
|
||||
// font is number `0`. Once created, you can call the @link ttfGetNumFonts@
|
||||
// function to determine whether the loaded font file is a collection with more
|
||||
// than one font.
|
||||
//
|
||||
// The "err_cb" and "err_data" arguments specify a callback function and data
|
||||
// pointer for receiving error messages. If `NULL`, errors are sent to the
|
||||
// `stderr` file. The callback function receives the data pointer and a text
|
||||
// message string, for example:
|
||||
//
|
||||
// ```
|
||||
// void my_err_cb(void *err_data, const char *message)
|
||||
// {
|
||||
// fprintf(stderr, "ERROR: %s\n", message);
|
||||
// }
|
||||
// ```
|
||||
//
|
||||
|
||||
ttf_t * // O - New font object
|
||||
@ -550,6 +573,10 @@ ttfGetAscent(ttf_t *font) // I - Font
|
||||
//
|
||||
// 'ttfGetBounds()' - Get the bounds of all characters in a font.
|
||||
//
|
||||
// This function gets the bounds of all characters in a font. The "bounds"
|
||||
// argument is a pointer to a `ttf_rect_t` structure that will be filled with
|
||||
// the limits for characters in the font scaled to a 1000x1000 unit square.
|
||||
//
|
||||
|
||||
ttf_rect_t * // O - Bounds or `NULL` on error
|
||||
ttfGetBounds(ttf_t *font, // I - Font
|
||||
@ -631,8 +658,11 @@ ttfGetDescent(ttf_t *font) // I - Font
|
||||
//
|
||||
// 'ttfGetExtents()' - Get the extents of a UTF-8 string.
|
||||
//
|
||||
// This function computes the extents of a UTF-8 string when rendered using the
|
||||
// specified font and size.
|
||||
// This function computes the extents of the UTF-8 string "s" when rendered
|
||||
// using the specified font "font" and size "size". The "extents" argument is
|
||||
// a pointer to a `ttf_rect_t` structure that is filled with the extents of a
|
||||
// simple rendering of the string with no kerning or rewriting applied. The
|
||||
// values are scaled using the specified font size.
|
||||
//
|
||||
|
||||
ttf_rect_t * // O - Pointer to extents or `NULL` on error
|
||||
@ -1272,23 +1302,34 @@ read_cmap(ttf_t *font) // I - Font
|
||||
for (i = 0; i < numGlyphIdArray; i ++)
|
||||
glyphIdArray[i] = read_ushort(font);
|
||||
|
||||
#ifdef DEBUG
|
||||
for (i = 0; i < segCount; i ++)
|
||||
TTF_DEBUG("read_cmap: segment[%d].startCode=%d, endCode=%d, idDelta=%d, idRangeOffset=%d\n", i, segments[i].startCode, segments[i].endCode, segments[i].idDelta, segments[i].idRangeOffset);
|
||||
for (i = 0, segment = segments; i < segCount; i ++, segment ++)
|
||||
{
|
||||
TTF_DEBUG("read_cmap: segment[%d].startCode=%d, endCode=%d, idDelta=%d, idRangeOffset=%d\n", i, segment->startCode, segment->endCode, segment->idDelta, segment->idRangeOffset);
|
||||
|
||||
if (segment->startCode > segment->endCode)
|
||||
{
|
||||
errorf(font, "Bad cmap table segment %u to %u.", segments->startCode, segment->endCode);
|
||||
free(segments);
|
||||
free(glyphIdArray);
|
||||
return (false);
|
||||
}
|
||||
|
||||
// Based on the end code of the segment table, allocate space for the
|
||||
// uncompressed cmap table...
|
||||
if (segment->endCode >= font->num_cmap)
|
||||
font->num_cmap = segment->endCode + 1;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
for (i = 0; i < numGlyphIdArray; i ++)
|
||||
TTF_DEBUG("read_cmap: glyphIdArray[%d]=%d\n", i, glyphIdArray[i]);
|
||||
#endif /* DEBUG */
|
||||
|
||||
// Based on the end code of the segent table, allocate space for the
|
||||
// uncompressed cmap table...
|
||||
// segCount --; // Last segment is not used (sigh)
|
||||
|
||||
font->num_cmap = segments[segCount - 1].endCode + 1;
|
||||
|
||||
if (font->num_cmap > TTF_FONT_MAX_CHAR)
|
||||
if (font->num_cmap == 0 || font->num_cmap > TTF_FONT_MAX_CHAR)
|
||||
{
|
||||
errorf(font, "Invalid cmap table with %u characters.", (unsigned)font->num_cmap);
|
||||
free(segments);
|
||||
free(glyphIdArray);
|
||||
return (false);
|
||||
}
|
||||
|
||||
@ -1382,6 +1423,13 @@ read_cmap(ttf_t *font) // I - Font
|
||||
group->startGlyphID = read_ulong(font);
|
||||
TTF_DEBUG("read_cmap: [%u] startCharCode=%u, endCharCode=%u, startGlyphID=%u\n", gidx, group->startCharCode, group->endCharCode, group->startGlyphID);
|
||||
|
||||
if (group->startCharCode > group->endCharCode)
|
||||
{
|
||||
errorf(font, "Bad cmap table segment %u to %u.", group->startCharCode, group->endCharCode);
|
||||
free(groups);
|
||||
return (false);
|
||||
}
|
||||
|
||||
if (group->endCharCode >= font->num_cmap)
|
||||
font->num_cmap = group->endCharCode + 1;
|
||||
}
|
||||
@ -1390,9 +1438,10 @@ read_cmap(ttf_t *font) // I - Font
|
||||
// uncompressed cmap table...
|
||||
TTF_DEBUG("read_cmap: num_cmap=%u\n", (unsigned)font->num_cmap);
|
||||
|
||||
if (font->num_cmap > TTF_FONT_MAX_CHAR)
|
||||
if (font->num_cmap == 0 || font->num_cmap > TTF_FONT_MAX_CHAR)
|
||||
{
|
||||
errorf(font, "Invalid cmap table with %u characters.", (unsigned)font->num_cmap);
|
||||
free(groups);
|
||||
return (false);
|
||||
}
|
||||
|
||||
@ -1465,6 +1514,13 @@ read_cmap(ttf_t *font) // I - Font
|
||||
group->glyphID = read_ulong(font);
|
||||
TTF_DEBUG("read_cmap: [%u] startCharCode=%u, endCharCode=%u, glyphID=%u\n", gidx, group->startCharCode, group->endCharCode, group->glyphID);
|
||||
|
||||
if (group->startCharCode > group->endCharCode)
|
||||
{
|
||||
errorf(font, "Bad cmap table segment %u to %u.", group->startCharCode, group->endCharCode);
|
||||
free(groups);
|
||||
return (false);
|
||||
}
|
||||
|
||||
if (group->endCharCode >= font->num_cmap)
|
||||
font->num_cmap = group->endCharCode + 1;
|
||||
}
|
||||
@ -1473,9 +1529,10 @@ read_cmap(ttf_t *font) // I - Font
|
||||
// uncompressed cmap table...
|
||||
TTF_DEBUG("read_cmap: num_cmap=%u\n", (unsigned)font->num_cmap);
|
||||
|
||||
if (font->num_cmap > TTF_FONT_MAX_CHAR)
|
||||
if (font->num_cmap == 0 || font->num_cmap > TTF_FONT_MAX_CHAR)
|
||||
{
|
||||
errorf(font, "Invalid cmap table with %u characters.", (unsigned)font->num_cmap);
|
||||
free(groups);
|
||||
return (false);
|
||||
}
|
||||
|
||||
@ -1598,7 +1655,7 @@ read_hmtx(ttf_t *font, // I - Font
|
||||
_ttf_off_hhea_t *hhea) // O - hhea table data
|
||||
{
|
||||
unsigned length; // Length of hmtx table
|
||||
int i; // Looping var
|
||||
unsigned i; // Looping var
|
||||
_ttf_metric_t *widths; // Glyph metrics array
|
||||
|
||||
|
||||
@ -1677,8 +1734,15 @@ read_names(ttf_t *font) // I - Font
|
||||
return (false);
|
||||
|
||||
font->names.storage_size = length - (unsigned)offset;
|
||||
if (font->names.storage_size > TTF_FONT_MAX_NAMES)
|
||||
{
|
||||
errorf(font, "Name table too large - %u bytes.", (unsigned)font->names.storage_size);
|
||||
return (false);
|
||||
}
|
||||
|
||||
if ((font->names.storage = malloc(font->names.storage_size)) == NULL)
|
||||
return (false);
|
||||
|
||||
memset(font->names.storage, 'A', font->names.storage_size);
|
||||
|
||||
for (i = font->names.num_names, name = font->names.names; i > 0; i --, name ++)
|
||||
|
||||
17
ttf.h
17
ttf.h
@ -3,7 +3,7 @@
|
||||
//
|
||||
// https://github.com/michaelrsweet/ttf
|
||||
//
|
||||
// Copyright © 2018-2023 by Michael R Sweet.
|
||||
// Copyright © 2018-2024 by Michael R Sweet.
|
||||
//
|
||||
// Licensed under Apache License v2.0. See the file "LICENSE" for more
|
||||
// information.
|
||||
@ -11,6 +11,7 @@
|
||||
|
||||
#ifndef TTF_H
|
||||
# define TTF_H
|
||||
# include <stddef.h>
|
||||
# include <stdbool.h>
|
||||
# include <sys/types.h>
|
||||
# ifdef __cplusplus
|
||||
@ -22,12 +23,12 @@ extern "C" {
|
||||
// Types...
|
||||
//
|
||||
|
||||
typedef struct _ttf_s ttf_t; //// Font object
|
||||
typedef struct _ttf_s ttf_t; // Font object
|
||||
|
||||
typedef void (*ttf_err_cb_t)(void *data, const char *message);
|
||||
//// Font error callback
|
||||
// Font error callback
|
||||
|
||||
typedef enum ttf_stretch_e //// Font stretch
|
||||
typedef enum ttf_stretch_e // Font stretch
|
||||
{
|
||||
TTF_STRETCH_NORMAL, // normal
|
||||
TTF_STRETCH_ULTRA_CONDENSED, // ultra-condensed
|
||||
@ -40,20 +41,20 @@ typedef enum ttf_stretch_e //// Font stretch
|
||||
TTF_STRETCH_ULTRA_EXPANDED // ultra-expanded
|
||||
} ttf_stretch_t;
|
||||
|
||||
typedef enum ttf_style_e //// Font style
|
||||
typedef enum ttf_style_e // Font style
|
||||
{
|
||||
TTF_STYLE_NORMAL, // Normal font
|
||||
TTF_STYLE_ITALIC, // Italic font
|
||||
TTF_STYLE_OBLIQUE // Oblique (angled) font
|
||||
} ttf_style_t;
|
||||
|
||||
typedef enum ttf_variant_e //// Font variant
|
||||
typedef enum ttf_variant_e // Font variant
|
||||
{
|
||||
TTF_VARIANT_NORMAL, // Normal font
|
||||
TTF_VARIANT_SMALL_CAPS // Font whose lowercase letters are small capitals
|
||||
} ttf_variant_t;
|
||||
|
||||
typedef enum ttf_weight_e //// Font weight
|
||||
typedef enum ttf_weight_e // Font weight
|
||||
{
|
||||
TTF_WEIGHT_100 = 100, // Weight 100 (Thin)
|
||||
TTF_WEIGHT_200 = 200, // Weight 200 (Extra/Ultra-Light)
|
||||
@ -66,7 +67,7 @@ typedef enum ttf_weight_e //// Font weight
|
||||
TTF_WEIGHT_900 = 900 // Weight 900 (Black/Heavy)
|
||||
} ttf_weight_t;
|
||||
|
||||
typedef struct ttf_rect_s //// Bounding rectangle
|
||||
typedef struct ttf_rect_s // Bounding rectangle
|
||||
{
|
||||
float left; // Left offset
|
||||
float top; // Top offset
|
||||
|
||||
Reference in New Issue
Block a user