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Imported Upstream version 2.2.6

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Ari Pollak
2010-08-11 01:14:17 -04:00
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@ -1,133 +1,205 @@
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>GimpPreviewArea</title><meta name="generator" content="DocBook XSL Stylesheets V1.66.1"><link rel="start" href="index.html" title="GIMP Widgets Library Reference Manual"><link rel="up" href="libgimpwidgets-widgets.html" title="Part<72>I.<2E>GIMP Widgets"><link rel="prev" href="GimpPixmap.html" title="GimpPixmap"><link rel="next" href="GimpPreview.html" title="GimpPreview"><meta name="generator" content="GTK-Doc V1.2 (XML mode)"><style type="text/css">
.synopsis, .classsynopsis {
background: #eeeeee;
border: solid 1px #aaaaaa;
padding: 0.5em;
}
.programlisting {
background: #eeeeff;
border: solid 1px #aaaaff;
padding: 0.5em;
}
.variablelist {
padding: 4px;
margin-left: 3em;
}
.navigation {
background: #ffeeee;
border: solid 1px #ffaaaa;
margin-top: 0.5em;
margin-bottom: 0.5em;
}
.navigation a {
color: #770000;
}
.navigation a:visited {
color: #550000;
}
.navigation .title {
font-size: 200%;
}
</style></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="GimpPixmap.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="libgimpwidgets-widgets.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td><th width="100%" align="center">GIMP Widgets Library Reference Manual</th><td><a accesskey="n" href="GimpPreview.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr></table><div class="refentry" lang="en"><a name="GimpPreviewArea"></a><div class="titlepage"></div><div class="refnamediv"><h2><span class="refentrytitle">GimpPreviewArea</span></h2><p>GimpPreviewArea &#8212; A general purpose preview widget which caches its pixel data.</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>GimpPreviewArea</title><meta name="generator" content="DocBook XSL Stylesheets V1.66.1"><link rel="start" href="index.html" title="GIMP Widgets Library Reference Manual"><link rel="up" href="libgimpwidgets-widgets.html" title="Part<72>I.<2E>GIMP Widgets"><link rel="prev" href="GimpPixmap.html" title="GimpPixmap"><link rel="next" href="GimpPreview.html" title="GimpPreview"><meta name="generator" content="GTK-Doc V1.3 (XML mode)"><link rel="stylesheet" href="style.css" type="text/css"><link rel="part" href="libgimpwidgets-widgets.html" title="Part<72>I.<2E>GIMP Widgets"><link rel="chapter" href="libgimpwidgets-hierarchy.html" title="Object Hierarchy"><link rel="chapter" href="libgimpwidgets-cell-renderers.html" title="Cell Renderers for GtkTreeView"><link rel="part" href="libgimpwidgets-colordisplay.html" title="Part<72>II.<2E>GIMP Display Filters"><link rel="part" href="libgimpwidgets-colorselector.html" title="Part<72>III.<2E>GIMP Color Selectors"><link rel="part" href="libgimpwidgets-controller.html" title="Part<72>IV.<2E>GIMP Controllers"><link rel="part" href="libgimpwidgets-utils.html" title="Part<72>V.<2E>GIMP Widgets Utilities"><link rel="part" href="libgimpwidgets-deprecated.html" title="Part<72>VI.<2E>Deprecated API"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="GimpPixmap.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="libgimpwidgets-widgets.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td><th width="100%" align="center">GIMP Widgets Library Reference Manual</th><td><a accesskey="n" href="GimpPreview.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr></table><div class="refentry" lang="en"><a name="GimpPreviewArea"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><span class="refentrytitle">GimpPreviewArea</span></h2><p>GimpPreviewArea &#8212; A general purpose preview widget which caches its pixel data.</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
struct <a href="GimpPreviewArea.html#GimpPreviewArea-struct">GimpPreviewArea</a>;
GtkWidget* <a href="GimpPreviewArea.html#gimp-preview-area-new">gimp_preview_area_new</a> (void);
<a href="GimpPreviewArea.html#GimpPreviewArea-struct">GimpPreviewArea</a>;
<a
href="../gtk/GtkWidget.html"
>GtkWidget</a>* <a href="GimpPreviewArea.html#gimp-preview-area-new">gimp_preview_area_new</a> (void);
void <a href="GimpPreviewArea.html#gimp-preview-area-draw">gimp_preview_area_draw</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
>GimpImageType</a> type,
const guchar *buf,
gint rowstride);
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride);
void <a href="GimpPreviewArea.html#gimp-preview-area-fill">gimp_preview_area_fill</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
guchar red,
guchar green,
guchar blue);
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> red,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> green,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> blue);
void <a href="GimpPreviewArea.html#gimp-preview-area-blend">gimp_preview_area_blend</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
>GimpImageType</a> type,
const guchar *buf1,
gint rowstride1,
const guchar *buf2,
gint rowstride2,
guchar opacity);
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf1,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride1,
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf2,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride2,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> opacity);
void <a href="GimpPreviewArea.html#gimp-preview-area-mask">gimp_preview_area_mask</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
>GimpImageType</a> type,
const guchar *buf1,
gint rowstride1,
const guchar *buf2,
gint rowstride2,
const guchar *mask,
gint rowstride_mask);
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf1,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride1,
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf2,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride2,
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *mask,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride_mask);
void <a href="GimpPreviewArea.html#gimp-preview-area-set-offsets">gimp_preview_area_set_offsets</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y);
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y);
void <a href="GimpPreviewArea.html#gimp-preview-area-set-colormap">gimp_preview_area_set_colormap</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
const guchar *colormap,
gint num_colors);
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *colormap,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> num_colors);
void <a href="GimpPreviewArea.html#gimp-preview-area-set-max-size">gimp_preview_area_set_max_size</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint width,
gint height);
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height);
void <a href="GimpPreviewArea.html#gimp-preview-area-menu-popup">gimp_preview_area_menu_popup</a> (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
GdkEventButton *event);
<a
href="../gdk/gdk-Event-Structures.html#GdkEventButton"
>GdkEventButton</a> *event);
</pre></div><div class="refsect1" lang="en"><a name="id2593144"></a><h2>Object Hierarchy</h2><pre class="synopsis">
</pre></div><div class="refsect1" lang="en"><a name="id2591471"></a><h2>Object Hierarchy</h2><pre class="synopsis">
GObject
+----GtkObject
+----GtkWidget
+----GtkDrawingArea
<a
href="../gobject/gobject-The-Base-Object-Type.html#GObject"
>GObject</a>
+----<a
href="../gtk/GtkObject.html"
>GtkObject</a>
+----<a
href="../gtk/GtkWidget.html"
>GtkWidget</a>
+----<a
href="../gtk/GtkDrawingArea.html"
>GtkDrawingArea</a>
+----GimpPreviewArea
</pre></div><div class="refsect1" lang="en"><a name="id2593174"></a><h2>Implemented Interfaces</h2><p>
</pre></div><div class="refsect1" lang="en"><a name="id2591501"></a><h2>Implemented Interfaces</h2><p>
GimpPreviewArea implements
AtkImplementorIface.</p></div><div class="refsect1" lang="en"><a name="id2593190"></a><h2>Properties</h2><pre class="synopsis">
AtkImplementorIface.</p></div><div class="refsect1" lang="en"><a name="id2591517"></a><h2>Properties</h2><pre class="synopsis">
"<a href="GimpPreviewArea.html#GimpPreviewArea--check-size">check-size</a>" <a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpCheckSize"
>GimpCheckSize</a> : Read / Write
>GimpCheckSize</a> : Read / Write
"<a href="GimpPreviewArea.html#GimpPreviewArea--check-type">check-type</a>" <a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpCheckType"
>GimpCheckType</a> : Read / Write
</pre></div><div class="refsect1" lang="en"><a name="id2593220"></a><h2>Description</h2><p>
>GimpCheckType</a> : Read / Write
</pre></div><div class="refsect1" lang="en"><a name="id2591547"></a><h2>Description</h2><p>
A general purpose preview widget which caches its pixel data.
</p></div><div class="refsect1" lang="en"><a name="id2593231"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id2593236"></a><h3><a name="GimpPreviewArea-struct"></a>struct GimpPreviewArea</h3><a class="indexterm" name="id2593245"></a><pre class="programlisting">struct GimpPreviewArea;</pre><p>
</p></div><div class="refsect1" lang="en"><a name="id2591558"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id2591563"></a><h3><a name="GimpPreviewArea-struct"></a>GimpPreviewArea</h3><a class="indexterm" name="id2591572"></a><pre class="programlisting">typedef struct _GimpPreviewArea GimpPreviewArea;</pre><p>
</p></div><hr><div class="refsect2" lang="en"><a name="id2593254"></a><h3><a name="gimp-preview-area-new"></a>gimp_preview_area_new ()</h3><a class="indexterm" name="id2593263"></a><pre class="programlisting">GtkWidget* gimp_preview_area_new (void);</pre><p>
</p></div><hr><div class="refsect2" lang="en"><a name="id2591582"></a><h3><a name="gimp-preview-area-new"></a>gimp_preview_area_new ()</h3><a class="indexterm" name="id2591591"></a><pre class="programlisting"><a
href="../gtk/GtkWidget.html"
>GtkWidget</a>* gimp_preview_area_new (void);</pre><p>
</p><p>
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> a new <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a> widget.
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span><EFBFBD>:</span></td><td> a new <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a> widget.
Since GIMP 2.2
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2590581"></a><h3><a name="gimp-preview-area-draw"></a>gimp_preview_area_draw ()</h3><a class="indexterm" name="id2590590"></a><pre class="programlisting">void gimp_preview_area_draw (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2587134"></a><h3><a name="gimp-preview-area-draw"></a>gimp_preview_area_draw ()</h3><a class="indexterm" name="id2587142"></a><pre class="programlisting">void gimp_preview_area_draw (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
>GimpImageType</a> type,
const guchar *buf,
gint rowstride);</pre><p>
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride);</pre><p>
Draws <i class="parameter"><tt>buf</tt></i> on <i class="parameter"><tt>area</tt></i> and queues a redraw on the given rectangle.
</p><p>
Since GIMP 2.2</p><p>
@ -140,16 +212,32 @@ Since GIMP 2.2</p><p>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>type</tt></i><EFBFBD>:</span></td><td> the <a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
><span class="type">GimpImageType</span></a> of <i class="parameter"><tt>buf</tt></i>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf</tt></i><EFBFBD>:</span></td><td> a <span class="type">guchar</span> buffer that contains the preview pixel data.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf</tt></i><EFBFBD>:</span></td><td> a <a
href="../glib/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> buffer that contains the preview pixel data.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>rowstride</tt></i><EFBFBD>:</span></td><td> rowstride of <i class="parameter"><tt>buf</tt></i>
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2590783"></a><h3><a name="gimp-preview-area-fill"></a>gimp_preview_area_fill ()</h3><a class="indexterm" name="id2590791"></a><pre class="programlisting">void gimp_preview_area_fill (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
guchar red,
guchar green,
guchar blue);</pre><p>
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2587335"></a><h3><a name="gimp-preview-area-fill"></a>gimp_preview_area_fill ()</h3><a class="indexterm" name="id2587344"></a><pre class="programlisting">void gimp_preview_area_fill (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> red,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> green,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> blue);</pre><p>
Fills <i class="parameter"><tt>area</tt></i> in the given color and queues a redraw on the given
rectangle.
</p><p>
@ -163,19 +251,37 @@ Since GIMP 2.2</p><p>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>red</tt></i><EFBFBD>:</span></td><td> red component of the fill color (0-255)
</td></tr><tr><td><span class="term"><i class="parameter"><tt>green</tt></i><EFBFBD>:</span></td><td> green component of the fill color (0-255)
</td></tr><tr><td><span class="term"><i class="parameter"><tt>blue</tt></i><EFBFBD>:</span></td><td> red component of the fill color (0-255)
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2597275"></a><h3><a name="gimp-preview-area-blend"></a>gimp_preview_area_blend ()</h3><a class="indexterm" name="id2597284"></a><pre class="programlisting">void gimp_preview_area_blend (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2596096"></a><h3><a name="gimp-preview-area-blend"></a>gimp_preview_area_blend ()</h3><a class="indexterm" name="id2596104"></a><pre class="programlisting">void gimp_preview_area_blend (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
>GimpImageType</a> type,
const guchar *buf1,
gint rowstride1,
const guchar *buf2,
gint rowstride2,
guchar opacity);</pre><p>
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf1,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride1,
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf2,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride2,
<a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> opacity);</pre><p>
Composites <i class="parameter"><tt>buf1</tt></i> on <i class="parameter"><tt>buf2</tt></i> with the given <i class="parameter"><tt>opacity</tt></i>, draws the result
to <i class="parameter"><tt>area</tt></i> and queues a redraw on the given rectangle.
</p><p>
@ -189,27 +295,51 @@ Since GIMP 2.2</p><p>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>type</tt></i><EFBFBD>:</span></td><td> the <a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
><span class="type">GimpImageType</span></a> of <i class="parameter"><tt>buf1</tt></i> and <i class="parameter"><tt>buf2</tt></i>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf1</tt></i><EFBFBD>:</span></td><td> a <span class="type">guchar</span> buffer that contains the pixel data for
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf1</tt></i><EFBFBD>:</span></td><td> a <a
href="../glib/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> buffer that contains the pixel data for
the lower layer
</td></tr><tr><td><span class="term"><i class="parameter"><tt>rowstride1</tt></i><EFBFBD>:</span></td><td> rowstride of <i class="parameter"><tt>buf1</tt></i>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf2</tt></i><EFBFBD>:</span></td><td> a <span class="type">guchar</span> buffer that contains the pixel data for
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf2</tt></i><EFBFBD>:</span></td><td> a <a
href="../glib/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> buffer that contains the pixel data for
the upper layer
</td></tr><tr><td><span class="term"><i class="parameter"><tt>rowstride2</tt></i><EFBFBD>:</span></td><td> rowstride of <i class="parameter"><tt>buf2</tt></i>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>opacity</tt></i><EFBFBD>:</span></td><td> The opacity of the first layer.
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2597549"></a><h3><a name="gimp-preview-area-mask"></a>gimp_preview_area_mask ()</h3><a class="indexterm" name="id2597558"></a><pre class="programlisting">void gimp_preview_area_mask (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y,
gint width,
gint height,
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2596369"></a><h3><a name="gimp-preview-area-mask"></a>gimp_preview_area_mask ()</h3><a class="indexterm" name="id2596377"></a><pre class="programlisting">void gimp_preview_area_mask (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height,
<a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
>GimpImageType</a> type,
const guchar *buf1,
gint rowstride1,
const guchar *buf2,
gint rowstride2,
const guchar *mask,
gint rowstride_mask);</pre><p>
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf1,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride1,
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *buf2,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride2,
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *mask,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> rowstride_mask);</pre><p>
Composites <i class="parameter"><tt>buf1</tt></i> on <i class="parameter"><tt>buf2</tt></i> with the given <i class="parameter"><tt>mask</tt></i>, draws the result on
<i class="parameter"><tt>area</tt></i> and queues a redraw on the given rectangle.
</p><p>
@ -223,18 +353,28 @@ Since GIMP 2.2</p><p>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>type</tt></i><EFBFBD>:</span></td><td> the <a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpImageType"
><span class="type">GimpImageType</span></a> of <i class="parameter"><tt>buf1</tt></i> and <i class="parameter"><tt>buf2</tt></i>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf1</tt></i><EFBFBD>:</span></td><td> a <span class="type">guchar</span> buffer that contains the pixel data for
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf1</tt></i><EFBFBD>:</span></td><td> a <a
href="../glib/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> buffer that contains the pixel data for
the lower layer
</td></tr><tr><td><span class="term"><i class="parameter"><tt>rowstride1</tt></i><EFBFBD>:</span></td><td> rowstride of <i class="parameter"><tt>buf1</tt></i>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf2</tt></i><EFBFBD>:</span></td><td> a <span class="type">guchar</span> buffer that contains the pixel data for
</td></tr><tr><td><span class="term"><i class="parameter"><tt>buf2</tt></i><EFBFBD>:</span></td><td> a <a
href="../glib/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> buffer that contains the pixel data for
the upper layer
</td></tr><tr><td><span class="term"><i class="parameter"><tt>rowstride2</tt></i><EFBFBD>:</span></td><td> rowstride of <i class="parameter"><tt>buf2</tt></i>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>mask</tt></i><EFBFBD>:</span></td><td> a <span class="type">guchar</span> buffer representing the mask of the second
</td></tr><tr><td><span class="term"><i class="parameter"><tt>mask</tt></i><EFBFBD>:</span></td><td> a <a
href="../glib/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> buffer representing the mask of the second
layer.
</td></tr><tr><td><span class="term"><i class="parameter"><tt>rowstride_mask</tt></i><EFBFBD>:</span></td><td> rowstride for the mask.
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2597848"></a><h3><a name="gimp-preview-area-set-offsets"></a>gimp_preview_area_set_offsets ()</h3><a class="indexterm" name="id2597859"></a><pre class="programlisting">void gimp_preview_area_set_offsets (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint x,
gint y);</pre><p>
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2596667"></a><h3><a name="gimp-preview-area-set-offsets"></a>gimp_preview_area_set_offsets ()</h3><a class="indexterm" name="id2596678"></a><pre class="programlisting">void gimp_preview_area_set_offsets (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> x,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> y);</pre><p>
Sets the offsets of the previewed area. This information is used
when drawing the checkerboard and to determine the dither offsets.</p><p>
@ -242,9 +382,13 @@ when drawing the checkerboard and to determine the dither offsets.</p><p>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>x</tt></i><EFBFBD>:</span></td><td> horizontal offset
</td></tr><tr><td><span class="term"><i class="parameter"><tt>y</tt></i><EFBFBD>:</span></td><td> vertical offset
</td></tr></tbody></table></div><p>Since GIMP 2.2
</p></div><hr><div class="refsect2" lang="en"><a name="id2597942"></a><h3><a name="gimp-preview-area-set-colormap"></a>gimp_preview_area_set_colormap ()</h3><a class="indexterm" name="id2597953"></a><pre class="programlisting">void gimp_preview_area_set_colormap (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
const guchar *colormap,
gint num_colors);</pre><p>
</p></div><hr><div class="refsect2" lang="en"><a name="id2596763"></a><h3><a name="gimp-preview-area-set-colormap"></a>gimp_preview_area_set_colormap ()</h3><a class="indexterm" name="id2596774"></a><pre class="programlisting">void gimp_preview_area_set_colormap (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
const <a
href="../glib/glib-Basic-Types.html#guchar"
>guchar</a> *colormap,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> num_colors);</pre><p>
Sets the colormap for the <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a> widget. You need to
call this function before you use <a href="GimpPreviewArea.html#gimp-preview-area-draw"><tt class="function">gimp_preview_area_draw()</tt></a> with
an image type of <tt class="literal">GIMP_INDEXED_IMAGE</tt> or <tt class="literal">GIMP_INDEXEDA_IMAGE</tt>.
@ -252,11 +396,17 @@ an image type of <tt class="literal">GIMP_INDEXED_IMAGE</tt> or <tt class="liter
Since GIMP 2.2</p><p>
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>area</tt></i><EFBFBD>:</span></td><td> a <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>colormap</tt></i><EFBFBD>:</span></td><td> a <span class="type">guchar</span> buffer that contains the colormap
</td></tr><tr><td><span class="term"><i class="parameter"><tt>colormap</tt></i><EFBFBD>:</span></td><td> a <a
href="../glib/glib-Basic-Types.html#guchar"
><span class="type">guchar</span></a> buffer that contains the colormap
</td></tr><tr><td><span class="term"><i class="parameter"><tt>num_colors</tt></i><EFBFBD>:</span></td><td> the number of colors in the colormap
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2598063"></a><h3><a name="gimp-preview-area-set-max-size"></a>gimp_preview_area_set_max_size ()</h3><a class="indexterm" name="id2598074"></a><pre class="programlisting">void gimp_preview_area_set_max_size (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
gint width,
gint height);</pre><p>
</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2596884"></a><h3><a name="gimp-preview-area-set-max-size"></a>gimp_preview_area_set_max_size ()</h3><a class="indexterm" name="id2596895"></a><pre class="programlisting">void gimp_preview_area_set_max_size (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> width,
<a
href="../glib/glib-Basic-Types.html#gint"
>gint</a> height);</pre><p>
Usually a <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a> fills the size that it is
allocated. This funtion allows you to limit the preview area to a
maximum size. If a larger size is allocated for the widget, the
@ -266,16 +416,18 @@ preview will draw itself centered into the allocated area.</p><p>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>width</tt></i><EFBFBD>:</span></td><td> the maximum width in pixels or -1 to unset the limit
</td></tr><tr><td><span class="term"><i class="parameter"><tt>height</tt></i><EFBFBD>:</span></td><td> the maximum height in pixels or -1 to unset the limit
</td></tr></tbody></table></div><p>Since GIMP 2.2
</p></div><hr><div class="refsect2" lang="en"><a name="id2598167"></a><h3><a name="gimp-preview-area-menu-popup"></a>gimp_preview_area_menu_popup ()</h3><a class="indexterm" name="id2598178"></a><pre class="programlisting">void gimp_preview_area_menu_popup (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
GdkEventButton *event);</pre><p>
</p></div><hr><div class="refsect2" lang="en"><a name="id2596990"></a><h3><a name="gimp-preview-area-menu-popup"></a>gimp_preview_area_menu_popup ()</h3><a class="indexterm" name="id2597001"></a><pre class="programlisting">void gimp_preview_area_menu_popup (<a href="GimpPreviewArea.html" title="GimpPreviewArea">GimpPreviewArea</a> *area,
<a
href="../gdk/gdk-Event-Structures.html#GdkEventButton"
>GdkEventButton</a> *event);</pre><p>
Creates a popup menu that allows to configure the size and type of
the checkerboard pattern that the <i class="parameter"><tt>area</tt></i> uses to visualize transparency.</p><p>
</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>area</tt></i><EFBFBD>:</span></td><td> a <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a>
</td></tr><tr><td><span class="term"><i class="parameter"><tt>event</tt></i><EFBFBD>:</span></td><td> the button event that causes the menu to popup or <tt class="literal">NULL</tt>
</td></tr></tbody></table></div><p>Since GIMP 2.2
</p></div></div><div class="refsect1" lang="en"><a name="id2598252"></a><h2>Properties</h2><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><a name="GimpPreviewArea--check-size"></a>"<tt class="literal">check-size</tt>" (<a
</p></div></div><div class="refsect1" lang="en"><a name="id2597078"></a><h2>Properties</h2><div class="refsect2" lang="en"><a name="id2597083"></a><h3><a name="GimpPreviewArea--check-size"></a>The "<tt class="literal">check-size</tt>" property</h3><pre class="programlisting"> "check-size" <a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpCheckSize"
>GimpCheckSize</a> : Read / Write)</span></td><td><p></p></td></tr><tr><td><span class="term"><a name="GimpPreviewArea--check-type"></a>"<tt class="literal">check-type</tt>" (<a
>GimpCheckSize</a> : Read / Write</pre><p></p><p>Default value: GIMP_CHECK_SIZE_MEDIUM_CHECKS</p></div><hr><div class="refsect2" lang="en"><a name="id2597108"></a><h3><a name="GimpPreviewArea--check-type"></a>The "<tt class="literal">check-type</tt>" property</h3><pre class="programlisting"> "check-type" <a
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpCheckType"
>GimpCheckType</a> : Read / Write)</span></td><td><p></p></td></tr></tbody></table></div></div></div><table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="GimpPixmap.html"><b>&lt;&lt;<EFBFBD>GimpPixmap</b></a></td><td align="right"><a accesskey="n" href="GimpPreview.html"><b>GimpPreview<EFBFBD>&gt;&gt;</b></a></td></tr></table></body></html>
>GimpCheckType</a> : Read / Write</pre><p></p><p>Default value: GIMP_CHECK_TYPE_GRAY_CHECKS</p></div></div></div><table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="GimpPixmap.html"><b>&lt;&lt;<EFBFBD>GimpPixmap</b></a></td><td align="right"><a accesskey="n" href="GimpPreview.html"><b>GimpPreview<EFBFBD>&gt;&gt;</b></a></td></tr></table></body></html>