mirror of
https://github.com/michaelrsweet/pdfio.git
synced 2024-07-01 11:09:50 +02:00
Update docos.
This commit is contained in:
Michael R Sweet
parent
b07e595579
commit
320e2ec088
45
doc/pdfio.3
45
doc/pdfio.3
|
|
@ -1,4 +1,4 @@
|
|||
.TH pdfio 3 "pdf read/write library" "2021-07-26" "pdf read/write library"
|
||||
.TH pdfio 3 "pdf read/write library" "2021-08-30" "pdf read/write library"
|
||||
.SH NAME
|
||||
pdfio \- pdf read/write library
|
||||
.SH Introduction
|
||||
|
|
@ -412,6 +412,10 @@ pdfioArrayCreateColorFromPalette creates an indexed color array from an array of
|
|||
.PP
|
||||
pdfioArrayCreateColorFromPrimaries creates a color array using CIE XYZ primaries and a gamma value
|
||||
|
||||
.IP \(bu 5
|
||||
.PP
|
||||
pdfioArrayCreateColorFromStandard creates a color array for a standard color space
|
||||
|
||||
|
||||
.PP
|
||||
You can embed an ICC color profile using the pdfioFileCreateICCObjFromFile function:
|
||||
|
|
@ -429,13 +433,13 @@ PDFio also includes predefined constants for creating a few standard color space
|
|||
pdfio_file_t *pdf = pdfioFileCreate(...);
|
||||
|
||||
// Create an AdobeRGB color array
|
||||
pdfio_array_t *adobe_rgb = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioAdobeRGBGamma, pdfioAdobeRGBMatrix, pdfioAdobeRGBWhitePoint);
|
||||
pdfio_array_t *adobe_rgb = pdfioArrayCreateColorFromStandard(pdf, 3, PDFIO_CS_ADOBE);
|
||||
|
||||
// Create an Display P3 color array
|
||||
pdfio_array_t *display_p3 = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioDisplay P3Gamma, pdfioDisplay P3Matrix, pdfioDisplay P3WhitePoint);
|
||||
pdfio_array_t *display_p3 = pdfioArrayCreateColorFromStandard(pdf, 3, PDFIO_CS_P3_D65);
|
||||
|
||||
// Create an sRGB color array
|
||||
pdfio_array_t *srgb = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint);
|
||||
pdfio_array_t *srgb = pdfioArrayCreateColorFromStandard(pdf, 3, PDFIO_CS_SRGB);
|
||||
.fi
|
||||
.PP
|
||||
Font Object Functions
|
||||
|
|
@ -782,6 +786,20 @@ pdfioContentTextShowJustified draws an array of literal strings with offsets bet
|
|||
|
||||
|
||||
.SH ENUMERATIONS
|
||||
.SS pdfio_cs_e
|
||||
Standard color spaces
|
||||
.TP 5
|
||||
PDFIO_CS_ADOBE
|
||||
.br
|
||||
AdobeRGB 1998
|
||||
.TP 5
|
||||
PDFIO_CS_P3_D65
|
||||
.br
|
||||
Display P3
|
||||
.TP 5
|
||||
PDFIO_CS_SRGB
|
||||
.br
|
||||
sRGB
|
||||
.SS pdfio_filter_e
|
||||
Compression/decompression filters for streams
|
||||
.TP 5
|
||||
|
|
@ -1085,6 +1103,19 @@ pdfio_array_t * pdfioArrayCreateColorFromPrimaries (
|
|||
double by
|
||||
);
|
||||
.fi
|
||||
.SS pdfioArrayCreateColorFromStandard
|
||||
Create a color array for a standard color space.
|
||||
.PP
|
||||
.nf
|
||||
pdfio_array_t * pdfioArrayCreateColorFromStandard (
|
||||
pdfio_file_t *pdf,
|
||||
size_t num_colors,
|
||||
pdfio_cs_t cs
|
||||
);
|
||||
.fi
|
||||
.PP
|
||||
This function creates a color array for a standard \fBPDFIO_CS_\fR enumerated color space.
|
||||
The "num_colors" argument must be \fB1\fR for grayscale and \fB3\fR for RGB color.
|
||||
.SS pdfioArrayGetArray
|
||||
Get an array value from an array.
|
||||
.PP
|
||||
|
|
@ -2613,6 +2644,12 @@ Array of PDF values
|
|||
.nf
|
||||
typedef struct _pdfio_array_s pdfio_array_t;
|
||||
.fi
|
||||
.SS pdfio_cs_t
|
||||
Standard color spaces
|
||||
.PP
|
||||
.nf
|
||||
typedef enum pdfio_cs_e pdfio_cs_t;
|
||||
.fi
|
||||
.SS pdfio_dict_t
|
||||
Key/value dictionary
|
||||
.PP
|
||||
|
|
|
|||
|
|
@ -283,6 +283,7 @@ span.string {
|
|||
<li><a href="#pdfioArrayCreateColorFromMatrix">pdfioArrayCreateColorFromMatrix</a></li>
|
||||
<li><a href="#pdfioArrayCreateColorFromPalette">pdfioArrayCreateColorFromPalette</a></li>
|
||||
<li><a href="#pdfioArrayCreateColorFromPrimaries">pdfioArrayCreateColorFromPrimaries</a></li>
|
||||
<li><a href="#pdfioArrayCreateColorFromStandard">pdfioArrayCreateColorFromStandard</a></li>
|
||||
<li><a href="#pdfioArrayGetArray">pdfioArrayGetArray</a></li>
|
||||
<li><a href="#pdfioArrayGetBinary">pdfioArrayGetBinary</a></li>
|
||||
<li><a href="#pdfioArrayGetBoolean">pdfioArrayGetBoolean</a></li>
|
||||
|
|
@ -435,6 +436,7 @@ span.string {
|
|||
</ul></li>
|
||||
<li><a href="#TYPES">Data Types</a><ul class="subcontents">
|
||||
<li><a href="#pdfio_array_t">pdfio_array_t</a></li>
|
||||
<li><a href="#pdfio_cs_t">pdfio_cs_t</a></li>
|
||||
<li><a href="#pdfio_dict_t">pdfio_dict_t</a></li>
|
||||
<li><a href="#pdfio_error_cb_t">pdfio_error_cb_t</a></li>
|
||||
<li><a href="#pdfio_file_t">pdfio_file_t</a></li>
|
||||
|
|
@ -452,6 +454,7 @@ span.string {
|
|||
<li><a href="#pdfio_rect_s">pdfio_rect_s</a></li>
|
||||
</ul></li>
|
||||
<li><a href="#ENUMERATIONS">Enumerations</a><ul class="subcontents">
|
||||
<li><a href="#pdfio_cs_e">pdfio_cs_e</a></li>
|
||||
<li><a href="#pdfio_filter_e">pdfio_filter_e</a></li>
|
||||
<li><a href="#pdfio_linecap_e">pdfio_linecap_e</a></li>
|
||||
<li><a href="#pdfio_linejoin_e">pdfio_linejoin_e</a></li>
|
||||
|
|
@ -700,6 +703,8 @@ pdfio_stream_t *pdfioObjCreateStream(obj, PDFIO_FILTER_FLATE);
|
|||
</li>
|
||||
<li><p><a href="#pdfioArrayCreateColorFromPrimaries"><code>pdfioArrayCreateColorFromPrimaries</code></a> creates a color array using CIE XYZ primaries and a gamma value</p>
|
||||
</li>
|
||||
<li><p><a href="#pdfioArrayCreateColorFromStandard"><code>pdfioArrayCreateColorFromStandard</code></a> creates a color array for a standard color space</p>
|
||||
</li>
|
||||
</ul>
|
||||
<p>You can embed an ICC color profile using the <a href="#pdfioFileCreateICCObjFromFile"><code>pdfioFileCreateICCObjFromFile</code></a> function:</p>
|
||||
<pre><code class="language-c">pdfio_file_t *pdf = pdfioFileCreate(...);
|
||||
|
|
@ -710,13 +715,13 @@ pdfio_obj_t *icc = pdfioFileCreateICCObjFromFile(pdf, <span class="string">"
|
|||
<pre><code class="language-c">pdfio_file_t *pdf = pdfioFileCreate(...);
|
||||
|
||||
<span class="comment">// Create an AdobeRGB color array</span>
|
||||
pdfio_array_t *adobe_rgb = pdfioArrayCreateColorFromMatrix(pdf, <span class="number">3</span>, pdfioAdobeRGBGamma, pdfioAdobeRGBMatrix, pdfioAdobeRGBWhitePoint);
|
||||
pdfio_array_t *adobe_rgb = pdfioArrayCreateColorFromStandard(pdf, <span class="number">3</span>, PDFIO_CS_ADOBE);
|
||||
|
||||
<span class="comment">// Create an Display P3 color array</span>
|
||||
pdfio_array_t *display_p3 = pdfioArrayCreateColorFromMatrix(pdf, <span class="number">3</span>, pdfioDisplay P3Gamma, pdfioDisplay P3Matrix, pdfioDisplay P3WhitePoint);
|
||||
pdfio_array_t *display_p3 = pdfioArrayCreateColorFromStandard(pdf, <span class="number">3</span>, PDFIO_CS_P3_D65);
|
||||
|
||||
<span class="comment">// Create an sRGB color array</span>
|
||||
pdfio_array_t *srgb = pdfioArrayCreateColorFromMatrix(pdf, <span class="number">3</span>, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint);
|
||||
pdfio_array_t *srgb = pdfioArrayCreateColorFromStandard(pdf, <span class="number">3</span>, PDFIO_CS_SRGB);
|
||||
</code></pre>
|
||||
<h4 id="font-object-functions">Font Object Functions</h4>
|
||||
<p>PDF supports many kinds of fonts, including PostScript Type1, PDF Type3, TrueType/OpenType, and CID. PDFio provides two functions for creating font objects. The first is <a href="#pdfioFileCreateFontObjFromBase"><code>pdfioFileCreateFontObjFromBase</code></a> which creates a font object for one of the base PDF fonts:</p>
|
||||
|
|
@ -1122,6 +1127,24 @@ bool pdfioArrayAppendString(<a href="#pdfio_array_t">pdfio_array_t</a> *a, const
|
|||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Color space array</p>
|
||||
<h3 class="function"><a id="pdfioArrayCreateColorFromStandard">pdfioArrayCreateColorFromStandard</a></h3>
|
||||
<p class="description">Create a color array for a standard color space.</p>
|
||||
<p class="code">
|
||||
<a href="#pdfio_array_t">pdfio_array_t</a> *pdfioArrayCreateColorFromStandard(<a href="#pdfio_file_t">pdfio_file_t</a> *pdf, size_t num_colors, <a href="#pdfio_cs_t">pdfio_cs_t</a> cs);</p>
|
||||
<h4 class="parameters">Parameters</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>pdf</th>
|
||||
<td class="description">PDF file</td></tr>
|
||||
<tr><th>num_colors</th>
|
||||
<td class="description">Number of colors (1 or 3)</td></tr>
|
||||
<tr><th>cs</th>
|
||||
<td class="description">Color space enumeration</td></tr>
|
||||
</tbody></table>
|
||||
<h4 class="returnvalue">Return Value</h4>
|
||||
<p class="description">Color array</p>
|
||||
<h4 class="discussion">Discussion</h4>
|
||||
<p class="discussion">This function creates a color array for a standard <code>PDFIO_CS_</code> enumerated color space.
|
||||
The "num_colors" argument must be <code>1</code> for grayscale and <code>3</code> for RGB color.</p>
|
||||
<h3 class="function"><a id="pdfioArrayGetArray">pdfioArrayGetArray</a></h3>
|
||||
<p class="description">Get an array value from an array.</p>
|
||||
<p class="code">
|
||||
|
|
@ -3273,6 +3296,11 @@ char *pdfioStringCreatef(<a href="#pdfio_file_t">pdfio_file_t</a> *pdf, const ch
|
|||
<p class="code">
|
||||
typedef struct _pdfio_array_s pdfio_array_t;
|
||||
</p>
|
||||
<h3 class="typedef"><a id="pdfio_cs_t">pdfio_cs_t</a></h3>
|
||||
<p class="description">Standard color spaces</p>
|
||||
<p class="code">
|
||||
typedef enum <a href="#pdfio_cs_e">pdfio_cs_e</a> pdfio_cs_t;
|
||||
</p>
|
||||
<h3 class="typedef"><a id="pdfio_dict_t">pdfio_dict_t</a></h3>
|
||||
<p class="description">Key/value dictionary</p>
|
||||
<p class="code">
|
||||
|
|
@ -3354,6 +3382,14 @@ typedef enum <a href="#pdfio_valtype_e">pdfio_valtype_e</a> pdfio_valtype_t;
|
|||
<td class="description">Upper-right Y coordinate</td></tr>
|
||||
</tbody></table>
|
||||
<h2 class="title"><a id="ENUMERATIONS">Constants</a></h2>
|
||||
<h3 class="enumeration"><a id="pdfio_cs_e">pdfio_cs_e</a></h3>
|
||||
<p class="description">Standard color spaces</p>
|
||||
<h4 class="constants">Constants</h4>
|
||||
<table class="list"><tbody>
|
||||
<tr><th>PDFIO_CS_ADOBE </th><td class="description">AdobeRGB 1998</td></tr>
|
||||
<tr><th>PDFIO_CS_P3_D65 </th><td class="description">Display P3</td></tr>
|
||||
<tr><th>PDFIO_CS_SRGB </th><td class="description">sRGB</td></tr>
|
||||
</tbody></table>
|
||||
<h3 class="enumeration"><a id="pdfio_filter_e">pdfio_filter_e</a></h3>
|
||||
<p class="description">Compression/decompression filters for streams</p>
|
||||
<h4 class="constants">Constants</h4>
|
||||
|
|
|
|||
|
|
@ -351,6 +351,7 @@ creating color space arrays:
|
|||
- [`pdfioArrayCreateColorFromMatrix`](@@) creates a color array using a CIE XYZ color transform matrix, a gamma value, and a CIE XYZ white point
|
||||
- [`pdfioArrayCreateColorFromPalette`](@@) creates an indexed color array from an array of sRGB values
|
||||
- [`pdfioArrayCreateColorFromPrimaries`](@@) creates a color array using CIE XYZ primaries and a gamma value
|
||||
- [`pdfioArrayCreateColorFromStandard`](@@) creates a color array for a standard color space
|
||||
|
||||
You can embed an ICC color profile using the
|
||||
[`pdfioFileCreateICCObjFromFile`](@@) function:
|
||||
|
|
@ -370,13 +371,13 @@ spaces:
|
|||
pdfio_file_t *pdf = pdfioFileCreate(...);
|
||||
|
||||
// Create an AdobeRGB color array
|
||||
pdfio_array_t *adobe_rgb = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioAdobeRGBGamma, pdfioAdobeRGBMatrix, pdfioAdobeRGBWhitePoint);
|
||||
pdfio_array_t *adobe_rgb = pdfioArrayCreateColorFromStandard(pdf, 3, PDFIO_CS_ADOBE);
|
||||
|
||||
// Create an Display P3 color array
|
||||
pdfio_array_t *display_p3 = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioDisplay P3Gamma, pdfioDisplay P3Matrix, pdfioDisplay P3WhitePoint);
|
||||
pdfio_array_t *display_p3 = pdfioArrayCreateColorFromStandard(pdf, 3, PDFIO_CS_P3_D65);
|
||||
|
||||
// Create an sRGB color array
|
||||
pdfio_array_t *srgb = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint);
|
||||
pdfio_array_t *srgb = pdfioArrayCreateColorFromStandard(pdf, 3, PDFIO_CS_SRGB);
|
||||
```
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user