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Delay loading of the Info object and clean up the pdfioinfo example (Issue #87)

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Michael R Sweet
2025-01-17 16:50:30 -05:00
parent fbd61d1fe9
commit 3bc041e6d3
6 changed files with 78 additions and 29 deletions
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28
doc/pdfio.3
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@@ -1,4 +1,4 @@
.TH pdfio 3 "pdf read/write library" "2024-12-26" "pdf read/write library"
.TH pdfio 3 "pdf read/write library" "2025-01-17" "pdf read/write library"
.SH NAME
pdfio \- pdf read/write library
.SH Introduction
@@ -1045,9 +1045,11 @@ The pdfioinfo.c example program opens a PDF file and prints the title, author, c
{
const char *filename; // PDF filename
pdfio_file_t *pdf; // PDF file
const char *author; // Author name
time_t creation_date; // Creation date
struct tm *creation_tm; // Creation date/time information
char creation_text[256]; // Creation date/time as a string
const char *title; // Title
// Get the filename from the command\-line...
@@ -1065,15 +1067,25 @@ The pdfioinfo.c example program opens a PDF file and prints the title, author, c
if (pdf == NULL)
return (1);
// Get the title and author...
author = pdfioFileGetAuthor(pdf);
title = pdfioFileGetTitle(pdf);
// Get the creation date and convert to a string...
creation_date = pdfioFileGetCreationDate(pdf);
creation_tm = localtime(&creation_date);
strftime(creation_text, sizeof(creation_text), "%c", creation_tm);
if ((creation_date = pdfioFileGetCreationDate(pdf)) > 0)
{
creation_tm = localtime(&creation_date);
strftime(creation_text, sizeof(creation_text), "%c", creation_tm);
}
else
{
snprintf(creation_text, sizeof(creation_text), "\-\- not set \-\-");
}
// Print file information to stdout...
printf("%s:\\n", filename);
printf(" Title: %s\\n", pdfioFileGetTitle(pdf));
printf(" Author: %s\\n", pdfioFileGetAuthor(pdf));
printf(" Title: %s\\n", title ? title : "\-\- not set \-\-");
printf(" Author: %s\\n", author ? author : "\-\- not set \-\-");
printf(" Created On: %s\\n", creation_text);
printf(" Number Pages: %u\\n", (unsigned)pdfioFileGetNumPages(pdf));
@@ -2062,7 +2074,7 @@ The render_line function adds content from the linefrag_t array to a PDF page. I
}
.fi
.PP
We then loops through the fragments for the current line, drawing checkboxes, images, and text as needed. When a hyperlink is present, we add the link to the links array in the docdata_t structure, mapping "@" and "@@" to an internal link corresponding to the linked text:
We then loops through the fragments for the current line, drawing checkboxes, images, and text as needed. Whan a hyperlink is present, we add the link to the links array in the docdata_t structure, mapping "@" and "@@" to an internal link corresponding to the linked text:
.nf
if (frag\->url && dd\->num_links < DOCLINK_MAX)
@@ -2070,7 +2082,7 @@ We then loops through the fragments for the current line, drawing checkboxes, im
doclink_t *l = dd\->links + dd\->num_links;
// Pointer to this link record
if (!strcmp(frag\->url, "@"))
if (!strcmp(frag\->url, "@"))
{
// Use mapped text as link target...
char targetlink[129]; // Targeted link