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New upstream version 3.24.14

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Simon McVittie
2020-02-29 14:17:40 +00:00
parent ffccf14831 fab213a5f9
commit 701099732f
543 changed files with 330694 additions and 808714 deletions
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docs/reference/gtk/html/GtkDrawingArea.html
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@ -8,7 +8,7 @@
<link rel="up" href="MiscObjects.html" title="Miscellaneous">
<link rel="prev" href="GtkCalendar.html" title="GtkCalendar">
<link rel="next" href="GtkGLArea.html" title="GtkGLArea">
<meta name="generator" content="GTK-Doc V1.29 (XML mode)">
<meta name="generator" content="GTK-Doc V1.32.1 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@ -37,8 +37,8 @@
<a name="GtkDrawingArea.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
<col width="150px" class="functions_proto_type">
<col class="functions_proto_name">
</colgroup>
<tbody><tr>
<td class="function_type">
@ -54,12 +54,12 @@
<a name="GtkDrawingArea.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
<col width="150px" class="other_proto_type">
<col class="other_proto_name">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GtkDrawingArea.html#GtkDrawingArea-struct" title="struct GtkDrawingArea">GtkDrawingArea</a></td>
<td class="function_name"><a href="https://developer.gnome.org/gtk4/GtkDrawingArea.html#GtkDrawingArea-struct">GtkDrawingArea</a></td>
</tr></tbody>
</table></div>
</div>
@ -145,39 +145,39 @@ to call <a class="link" href="GtkStyleContext.html#gtk-render-background" title=
31
32
33</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="normal">gboolean</span>
<span class="function">draw_callback</span><span class="normal"> </span><span class="symbol">(</span><span class="usertype">GtkWidget</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">widget</span><span class="symbol">,</span><span class="normal"> </span><span class="usertype">cairo_t</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">cr</span><span class="symbol">,</span><span class="normal"> </span><span class="usertype">gpointer</span><span class="normal"> data</span><span class="symbol">)</span>
<span class="cbracket">{</span>
<span class="normal"> </span><span class="usertype">guint</span><span class="normal"> width</span><span class="symbol">,</span><span class="normal"> height</span><span class="symbol">;</span>
<span class="normal"> </span><span class="usertype">GdkRGBA</span><span class="normal"> color</span><span class="symbol">;</span>
<span class="normal"> </span><span class="usertype">GtkStyleContext</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">context</span><span class="symbol">;</span>
<td class="listing_code"><pre class="programlisting"><span class="n">gboolean</span>
<span class="nf">draw_callback</span> <span class="p">(</span><span class="n">GtkWidget</span> <span class="o">*</span><span class="n">widget</span><span class="p">,</span> <span class="n">cairo_t</span> <span class="o">*</span><span class="n">cr</span><span class="p">,</span> <span class="n">gpointer</span> <span class="n">data</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">guint</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">;</span>
<span class="n">GdkRGBA</span> <span class="n">color</span><span class="p">;</span>
<span class="n">GtkStyleContext</span> <span class="o">*</span><span class="n">context</span><span class="p">;</span>
<span class="normal"> context </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkWidget.html#gtk-widget-get-style-context">gtk_widget_get_style_context</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">widget</span><span class="symbol">);</span>
<span class="n">context</span> <span class="o">=</span> <span class="n">gtk_widget_get_style_context</span> <span class="p">(</span><span class="n">widget</span><span class="p">);</span>
<span class="normal"> width </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkWidget.html#gtk-widget-get-allocated-width">gtk_widget_get_allocated_width</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">widget</span><span class="symbol">);</span>
<span class="normal"> height </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkWidget.html#gtk-widget-get-allocated-height">gtk_widget_get_allocated_height</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">widget</span><span class="symbol">);</span>
<span class="n">width</span> <span class="o">=</span> <span class="n">gtk_widget_get_allocated_width</span> <span class="p">(</span><span class="n">widget</span><span class="p">);</span>
<span class="n">height</span> <span class="o">=</span> <span class="n">gtk_widget_get_allocated_height</span> <span class="p">(</span><span class="n">widget</span><span class="p">);</span>
<span class="normal"> </span><span class="function"><a href="GtkStyleContext.html#gtk-render-background">gtk_render_background</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">context</span><span class="symbol">,</span><span class="normal"> cr</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> width</span><span class="symbol">,</span><span class="normal"> height</span><span class="symbol">);</span>
<span class="n">gtk_render_background</span> <span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">cr</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">);</span>
<span class="normal"> </span><span class="function"><a href="/usr/share/gtk-doc/html/cairo/cairo-Paths.html#cairo-arc">cairo_arc</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">cr</span><span class="symbol">,</span>
<span class="normal"> width </span><span class="symbol">/</span><span class="normal"> </span><span class="number">2.0</span><span class="symbol">,</span><span class="normal"> height </span><span class="symbol">/</span><span class="normal"> </span><span class="number">2.0</span><span class="symbol">,</span>
<span class="normal"> </span><span class="function">MIN</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">width</span><span class="symbol">,</span><span class="normal"> height</span><span class="symbol">)</span><span class="normal"> </span><span class="symbol">/</span><span class="normal"> </span><span class="number">2.0</span><span class="symbol">,</span>
<span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> </span><span class="number">2</span><span class="normal"> </span><span class="symbol">*</span><span class="normal"> G_PI</span><span class="symbol">);</span>
<span class="n">cairo_arc</span> <span class="p">(</span><span class="n">cr</span><span class="p">,</span>
<span class="n">width</span> <span class="o">/</span> <span class="mf">2.0</span><span class="p">,</span> <span class="n">height</span> <span class="o">/</span> <span class="mf">2.0</span><span class="p">,</span>
<span class="n">MIN</span> <span class="p">(</span><span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">)</span> <span class="o">/</span> <span class="mf">2.0</span><span class="p">,</span>
<span class="mi">0</span><span class="p">,</span> <span class="mi">2</span> <span class="o">*</span> <span class="n">G_PI</span><span class="p">);</span>
<span class="normal"> </span><span class="function"><a href="GtkStyleContext.html#gtk-style-context-get-color">gtk_style_context_get_color</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">context</span><span class="symbol">,</span>
<span class="normal"> </span><span class="function"><a href="GtkStyleContext.html#gtk-style-context-get-state">gtk_style_context_get_state</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">context</span><span class="symbol">),</span>
<span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">color</span><span class="symbol">);</span>
<span class="normal"> </span><span class="function">gdk_cairo_set_source_rgba</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">cr</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&amp;</span><span class="normal">color</span><span class="symbol">);</span>
<span class="n">gtk_style_context_get_color</span> <span class="p">(</span><span class="n">context</span><span class="p">,</span>
<span class="n">gtk_style_context_get_state</span> <span class="p">(</span><span class="n">context</span><span class="p">),</span>
<span class="o">&amp;</span><span class="n">color</span><span class="p">);</span>
<span class="n">gdk_cairo_set_source_rgba</span> <span class="p">(</span><span class="n">cr</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">color</span><span class="p">);</span>
<span class="normal"> </span><span class="function"><a href="/usr/share/gtk-doc/html/cairo/cairo-cairo-t.html#cairo-fill">cairo_fill</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">cr</span><span class="symbol">);</span>
<span class="n">cairo_fill</span> <span class="p">(</span><span class="n">cr</span><span class="p">);</span>
<span class="normal"> </span><span class="keyword">return</span><span class="normal"> FALSE</span><span class="symbol">;</span>
<span class="cbracket">}</span>
<span class="symbol">[...]</span>
<span class="normal"> </span><span class="usertype">GtkWidget</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">drawing_area </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkDrawingArea.html#gtk-drawing-area-new">gtk_drawing_area_new</a></span><span class="normal"> </span><span class="symbol">();</span>
<span class="normal"> </span><span class="function"><a href="GtkWidget.html#gtk-widget-set-size-request">gtk_widget_set_size_request</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">drawing_area</span><span class="symbol">,</span><span class="normal"> </span><span class="number">100</span><span class="symbol">,</span><span class="normal"> </span><span class="number">100</span><span class="symbol">);</span>
<span class="normal"> </span><span class="function">g_signal_connect</span><span class="normal"> </span><span class="symbol">(</span><span class="function">G_OBJECT</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">drawing_area</span><span class="symbol">),</span><span class="normal"> </span><span class="string">"draw"</span><span class="symbol">,</span>
<span class="normal"> </span><span class="function">G_CALLBACK</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">draw_callback</span><span class="symbol">),</span><span class="normal"> NULL</span><span class="symbol">);</span></pre></td>
<span class="k">return</span> <span class="n">FALSE</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">[...]</span>
<span class="n">GtkWidget</span> <span class="o">*</span><span class="n">drawing_area</span> <span class="o">=</span> <span class="n">gtk_drawing_area_new</span> <span class="p">();</span>
<span class="n">gtk_widget_set_size_request</span> <span class="p">(</span><span class="n">drawing_area</span><span class="p">,</span> <span class="mi">100</span><span class="p">,</span> <span class="mi">100</span><span class="p">);</span>
<span class="n">g_signal_connect</span> <span class="p">(</span><span class="n">G_OBJECT</span> <span class="p">(</span><span class="n">drawing_area</span><span class="p">),</span> <span class="s">&quot;draw&quot;</span><span class="p">,</span>
<span class="n">G_CALLBACK</span> <span class="p">(</span><span class="n">draw_callback</span><span class="p">),</span> <span class="nb">NULL</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
@ -216,18 +216,11 @@ gtk_drawing_area_new (<em class="parameter"><code><span class="type">void</span>
</div>
</div>
<div class="refsect1">
<a name="GtkDrawingArea.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GtkDrawingArea-struct"></a><h3>struct GtkDrawingArea</h3>
<pre class="programlisting">struct GtkDrawingArea;</pre>
</div>
</div>
<div class="refsect1">
<a name="GtkDrawingArea.see-also"></a><h2>See Also</h2>
<p><a class="link" href="GtkImage.html" title="GtkImage"><span class="type">GtkImage</span></a></p>
</div>
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