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<!-- Generated by Doxygen 1.3.8 -->
<h1>pixbuf.hh File Reference</h1>A GdkPixbuf C++ wrapper interface. <a href="#_details">More...</a>
<p>
<code>#include <<a class="elRef" doxygen="gfccore.tag:" href="object_8hh.html">gfc/object.hh</a>></code><br>
<code>#include <gfc/glib/object.hh></code><br>
<code>#include <<a class="el" href="gdk_2types_8hh-source.html">gfc/gdk/types.hh</a>></code><br>
<code>#include <gdk-pixbuf/gdk-pixbuf.h></code><br>
<code>#include <gdk/gdkrgb.h></code><br>
<code>#include <vector></code><br>
<code>#include <gfc/gdk-pixbuf/inline/pixbuf.inl></code><br>
<p>
<a href="pixbuf_8hh-source.html">Go to the source code of this file.</a><h2>Namespaces</h2>
<ul>
<li>namespace <a class="elRef" doxygen="gfccore.tag:" href="namespaceGFC.html">GFC</a>
<li>namespace <a class="elRef" doxygen="gfccore.tag:" href="namespaceGFC::G.html">GFC::G</a>
<li>namespace <a class="el" href="namespaceGFC_1_1Gdk.html">GFC::Gdk</a>
</ul>
<h2>Classes</h2>
<ul>
<li>class <a class="el" href="classGFC_1_1Gdk_1_1PixbufFormat.html">GFC::Gdk::PixbufFormat</a>
<dl class="el"><dd class="mdescRight">A GdkPixbufFormat C++ wrapper class. <a href="classGFC_1_1Gdk_1_1PixbufFormat.html#_details">More...</a><br></dl><li>class <a class="el" href="classGFC_1_1Gdk_1_1Pixbuf.html">GFC::Gdk::Pixbuf</a>
<dl class="el"><dd class="mdescRight">A GdkPixbuf C++ wrapper class. <a href="classGFC_1_1Gdk_1_1Pixbuf.html#_details">More...</a><br></dl></ul>
<h2>Enumerations</h2>
<ul>
<li>enum <a class="el" href="namespaceGFC_1_1Gdk.html#a294">Colorspace</a> { <a class="el" href="namespaceGFC_1_1Gdk.html#a294a242">COLORSPACE_RGB</a> = GDK_COLORSPACE_RGB
}
<dl class="el"><dd class="mdescRight">Defines the color spaces that are supported by the gdk-pixbuf library. <a href="#a294">More...</a><br></dl><li>enum <a class="el" href="namespaceGFC_1_1Gdk.html#a295">InterpType</a> { <br>
<a class="el" href="namespaceGFC_1_1Gdk.html#a295a243">INTERP_NEAREST</a> = GDK_INTERP_NEAREST,
<br>
<a class="el" href="namespaceGFC_1_1Gdk.html#a295a244">INTERP_TILES</a> = GDK_INTERP_TILES,
<br>
<a class="el" href="namespaceGFC_1_1Gdk.html#a295a245">INTERP_BILINEAR</a> = GDK_INTERP_BILINEAR,
<br>
<a class="el" href="namespaceGFC_1_1Gdk.html#a295a246">INTERP_HYPER</a> = GDK_INTERP_HYPER
<br>
}
<dl class="el"><dd class="mdescRight">Describes the different interpolation modes that can be used with the scaling functions. <a href="#a295">More...</a><br></dl><li>enum <a class="el" href="namespaceGFC_1_1Gdk.html#a296">PixbufAlphaMode</a> { <br>
<a class="el" href="namespaceGFC_1_1Gdk.html#a296a247">PIXBUF_ALPHA_BILEVEL</a> = GDK_PIXBUF_ALPHA_BILEVEL,
<br>
<a class="el" href="namespaceGFC_1_1Gdk.html#a296a248">PIXBUF_ALPHA_FULL</a> = GDK_PIXBUF_ALPHA_FULL
<br>
}
<dl class="el"><dd class="mdescRight">These values can be passed to render_to_drawable_alpha() to control how the alpha chanel of an image should be handled. <a href="#a296">More...</a><br></dl></ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A GdkPixbuf C++ wrapper interface.
<p>
Pixbuf is an object that contains information that describes an image in memory.<hr><h2>Enumeration Type Documentation</h2>
<a class="anchor" name="a294" doxytag="pixbuf.hh::Colorspace" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top"> enum <a class="el" href="namespaceGFC_1_1Gdk.html#a294">Colorspace</a> </td>
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</table>
</td>
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</td>
<td>
<p>
Defines the color spaces that are supported by the gdk-pixbuf library.
<p>
Currently only RGB is supported. <dl compact><dt><b>Enumeration values: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em><a class="anchor" name="a294a242" doxytag="COLORSPACE_RGB" ></a>COLORSPACE_RGB</em> </td><td>
Indicates a red/green/blue additive color space. </td></tr>
</table>
</dl>
</td>
</tr>
</table>
<a class="anchor" name="a295" doxytag="pixbuf.hh::InterpType" ></a><p>
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<td class="mdRow">
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<td class="md" nowrap valign="top"> enum <a class="el" href="namespaceGFC_1_1Gdk.html#a295">InterpType</a> </td>
</tr>
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</td>
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<p>
Describes the different interpolation modes that can be used with the scaling functions.
<p>
INTERP_NEAREST is the fastest scaling method, but has horrible quality when scaling down. INTERP_BILINEAR is the best choice if you aren't sure what to choose, it has a good speed/quality balance.<p>
<b>Note:</b> Cubic filtering is missing from the list; hyperbolic interpolation is just as fast and results in higher quality. <dl compact><dt><b>Enumeration values: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em><a class="anchor" name="a295a243" doxytag="INTERP_NEAREST" ></a>INTERP_NEAREST</em> </td><td>
Nearest neighbor sampling; this is the fastest and lowest quality mode; Quality is normally unacceptable when scaling down, but may be OK when scaling up. </td></tr>
<tr><td valign=top><em><a class="anchor" name="a295a244" doxytag="INTERP_TILES" ></a>INTERP_TILES</em> </td><td>
This is an accurate simulation of the PostScript image operator without any interpolation enabled; Each pixel is rendered as a tiny parallelogram of solid color, the edges of which are implemented with antialiasing; It resembles nearest neighbor for enlargement, and bilinear for reduction. </td></tr>
<tr><td valign=top><em><a class="anchor" name="a295a245" doxytag="INTERP_BILINEAR" ></a>INTERP_BILINEAR</em> </td><td>
Best quality/speed balance; use this mode by default (bilinear interpolation); For enlargement, it is equivalent to point-sampling the ideal bilinear-interpolated image; For reduction, it is equivalent to laying down small tiles and integrating over the coverage area. </td></tr>
<tr><td valign=top><em><a class="anchor" name="a295a246" doxytag="INTERP_HYPER" ></a>INTERP_HYPER</em> </td><td>
This is the slowest and highest quality reconstruction function; It is derived from the hyperbolic filters in Wolberg's "Digital Image Warping", and is formally defined as the hyperbolic-filter sampling the ideal hyperbolic-filter interpolated image (the filter is designed to be idempotent for 1:1 pixel mapping). </td></tr>
</table>
</dl>
</td>
</tr>
</table>
<a class="anchor" name="a296" doxytag="pixbuf.hh::PixbufAlphaMode" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top"> enum <a class="el" href="namespaceGFC_1_1Gdk.html#a296">PixbufAlphaMode</a> </td>
</tr>
</table>
</td>
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<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
These values can be passed to render_to_drawable_alpha() to control how the alpha chanel of an image should be handled.
<p>
This method can create a bilevel clipping mask (black and white) and use it while pagfcng the image. In the future, when the X <a class="el" href="classGFC_1_1Gdk_1_1Window.html">Window</a> System gets an alpha channel extension, it will be possible to do full alpha compositing onto arbitrary drawables. For now both cases fall back to a bilevel clipping mask. <dl compact><dt><b>Enumeration values: </b></dt><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em><a class="anchor" name="a296a247" doxytag="PIXBUF_ALPHA_BILEVEL" ></a>PIXBUF_ALPHA_BILEVEL</em> </td><td>
A bilevel clipping mask (black and white) will be created and used to draw the image; Pixels below 0.5 opacity will be considered fully transparent, and all others will be considered fully opaque. </td></tr>
<tr><td valign=top><em><a class="anchor" name="a296a248" doxytag="PIXBUF_ALPHA_FULL" ></a>PIXBUF_ALPHA_FULL</em> </td><td>
For now falls back to PIXBUF_ALPHA_BILEVEL; In the future it will do full alpha compositing. </td></tr>
</table>
</dl>
</td>
</tr>
</table>
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