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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>libpaps: src/libpaps.h File Reference</title>
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<h1>libpaps.h File Reference</h1>Interface for converting pango layouts into postscript. <a href="#_details">More...</a>
<p>
<code>#include <glib.h></code><br>
<code>#include <pango/pango.h></code><br>
<p>
<a href="libpaps_8h-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef void </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#4ddc548ab818eb9fe351def79d48ced6">paps_new</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#0212735249a4b8d88f0fd0e1e06e46ee">paps_free</a> (<a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> *paps)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#5892014cb4542c7b9d3d468c106f966c">paps_set_scale</a> (<a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> *paps, gdouble scale_x, gdouble scale_y)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">PangoContext * </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#3eb383e3f29a4ed8545907c2957db9b0">paps_get_pango_context</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">gchar * </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#ee8da2e0bfae73ca0e8a9046384d838d">paps_get_postscript_header_strdup</a> (<a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> *paps)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">gchar * </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#50206ea82dafae0aabb642a9801a02af">paps_layout_to_postscript_strdup</a> (<a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> *paps, double pos_x, double pos_y, PangoLayout *layout)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">gchar * </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#9f692485f31a541f175e7a3c28ea7faf">paps_layout_line_to_postscript_strdup</a> (<a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> *paps, double pos_x, double pos_y, PangoLayoutLine *layout_line)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="libpaps_8h.html#fcf44cad7f299c059dc132fed567beca">paps_postscript_points_to_pango</a> (double points)</td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Interface for converting pango layouts into postscript.
<p>
The library is used by first creating a paps object through <a class="el" href="libpaps_8h.html#4ddc548ab818eb9fe351def79d48ced6">paps_new()</a>. The paps object is then used to generate PostScript for one or more pango layouts through <a class="el" href="libpaps_8h.html#50206ea82dafae0aabb642a9801a02af">paps_layout_to_postscript_strdup()</a> or <a class="el" href="libpaps_8h.html#9f692485f31a541f175e7a3c28ea7faf">paps_layout_line_to_postscript_strdup()</a>. Once all the layouts have been processed, the system may generate the PostScript header through <a class="el" href="libpaps_8h.html#ee8da2e0bfae73ca0e8a9046384d838d">paps_get_postscript_header_strdup()</a>. It is the responsibility of the caller to place the PostScript header in front of the renderings of the pango layouts.<p>
The PostScript of the rendered layouts is relocatable in all sense so any postscript operators may be used to change their colors, transformations etc. <hr><h2>Typedef Documentation</h2>
<a class="anchor" name="b6cb108cff4a0306a2786a4b748f81ac"></a><!-- doxytag: member="libpaps.h::paps_t" ref="b6cb108cff4a0306a2786a4b748f81ac" args="" -->
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<td class="memname">typedef void <a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> </td>
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<p>
The paps handle taht is used in all interactions with the paps library.
</div>
</div><p>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="0212735249a4b8d88f0fd0e1e06e46ee"></a><!-- doxytag: member="libpaps.h::paps_free" ref="0212735249a4b8d88f0fd0e1e06e46ee" args="(paps_t *paps)" -->
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<td class="memname">void paps_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> * </td>
<td class="paramname"> <em>paps</em> </td>
<td> ) </td>
<td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Delete the paps object and free any allocated memory associated with it.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>paps</em> </td><td></td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="3eb383e3f29a4ed8545907c2957db9b0"></a><!-- doxytag: member="libpaps.h::paps_get_pango_context" ref="3eb383e3f29a4ed8545907c2957db9b0" args="()" -->
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<td class="memname">PangoContext* paps_get_pango_context </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
libpaps may currently be used only with a PangoContext that it is creating. The context returned may of course be changed though by any routines related to a PangoContext.<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>
</div>
</div><p>
<a class="anchor" name="ee8da2e0bfae73ca0e8a9046384d838d"></a><!-- doxytag: member="libpaps.h::paps_get_postscript_header_strdup" ref="ee8da2e0bfae73ca0e8a9046384d838d" args="(paps_t *paps)" -->
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<td class="memname">gchar* paps_get_postscript_header_strdup </td>
<td>(</td>
<td class="paramtype"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> * </td>
<td class="paramname"> <em>paps</em> </td>
<td> ) </td>
<td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<a class="el" href="libpaps_8h.html#ee8da2e0bfae73ca0e8a9046384d838d">paps_get_postscript_header_strdup()</a> returns the header and the font definitions related to the glyphs being used. This routine must only be called after the processing of all the strings is over.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>paps</em> </td><td>Paps object</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>A newly allocated string containing the postscript prologue needed for the postscript strings created by libpaps. </dd></dl>
</div>
</div><p>
<a class="anchor" name="9f692485f31a541f175e7a3c28ea7faf"></a><!-- doxytag: member="libpaps.h::paps_layout_line_to_postscript_strdup" ref="9f692485f31a541f175e7a3c28ea7faf" args="(paps_t *paps, double pos_x, double pos_y, PangoLayoutLine *layout_line)" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">gchar* paps_layout_line_to_postscript_strdup </td>
<td>(</td>
<td class="paramtype"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> * </td>
<td class="paramname"> <em>paps</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>pos_x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>pos_y</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">PangoLayoutLine * </td>
<td class="paramname"> <em>layout_line</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Create postscript related to a single PangoLayout line at position pos_x, pos_y (postscript coordinates). The related font definitions are stored internally and will be returned when doing paps_get_postscript_header_strdup.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>paps</em> </td><td>Paps object </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pos_x</em> </td><td>x-position </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pos_y</em> </td><td>y-position </td></tr>
<tr><td valign="top"></td><td valign="top"><em>layout_line</em> </td><td>Layout line to render</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>
</div>
</div><p>
<a class="anchor" name="50206ea82dafae0aabb642a9801a02af"></a><!-- doxytag: member="libpaps.h::paps_layout_to_postscript_strdup" ref="50206ea82dafae0aabb642a9801a02af" args="(paps_t *paps, double pos_x, double pos_y, PangoLayout *layout)" -->
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<td class="memname">gchar* paps_layout_to_postscript_strdup </td>
<td>(</td>
<td class="paramtype"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> * </td>
<td class="paramname"> <em>paps</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>pos_x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>pos_y</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">PangoLayout * </td>
<td class="paramname"> <em>layout</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
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<div class="memdoc">
<p>
Create postscript related to a PangoLayout at position pos_x, pos_y (postscript coordinates). The related font definitions are stored internally and will be returned when doing paps_get_postscript_header_strdup.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>paps</em> </td><td>Paps object </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pos_x</em> </td><td>x-position </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pos_y</em> </td><td>y-position </td></tr>
<tr><td valign="top"></td><td valign="top"><em>layout</em> </td><td>Layout to render</td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>
</div>
</div><p>
<a class="anchor" name="4ddc548ab818eb9fe351def79d48ced6"></a><!-- doxytag: member="libpaps.h::paps_new" ref="4ddc548ab818eb9fe351def79d48ced6" args="()" -->
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<td class="memname"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a>* paps_new </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"></td>
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<p>
Create a new paps object that may subsequently be used for generating postscript strings.<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>
</div>
</div><p>
<a class="anchor" name="fcf44cad7f299c059dc132fed567beca"></a><!-- doxytag: member="libpaps.h::paps_postscript_points_to_pango" ref="fcf44cad7f299c059dc132fed567beca" args="(double points)" -->
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<td class="memname">double paps_postscript_points_to_pango </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"> <em>points</em> </td>
<td> ) </td>
<td width="100%"></td>
</tr>
</table>
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<div class="memdoc">
<p>
Utility function that translates from postscript points to pango units.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>points</em> </td><td></td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>
</div>
</div><p>
<a class="anchor" name="5892014cb4542c7b9d3d468c106f966c"></a><!-- doxytag: member="libpaps.h::paps_set_scale" ref="5892014cb4542c7b9d3d468c106f966c" args="(paps_t *paps, gdouble scale_x, gdouble scale_y)" -->
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<td class="memname">void paps_set_scale </td>
<td>(</td>
<td class="paramtype"><a class="el" href="libpaps_8h.html#b6cb108cff4a0306a2786a4b748f81ac">paps_t</a> * </td>
<td class="paramname"> <em>paps</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">gdouble </td>
<td class="paramname"> <em>scale_x</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">gdouble </td>
<td class="paramname"> <em>scale_y</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
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<p>
Set the scales for characters.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>paps</em> </td><td>Paps object </td></tr>
<tr><td valign="top"></td><td valign="top"><em>scale_x</em> </td><td>x-coordinate scale </td></tr>
<tr><td valign="top"></td><td valign="top"><em>scale_y</em> </td><td>y-coordinate scale </td></tr>
</table>
</dl>
</div>
</div><p>
<hr size="1"><address style="align: right;"><small>Generated on Tue Nov 28 23:28:29 2006 for libpaps by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.1 </small></address>
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