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href="glossary.html" title="Glossary"><link rel="index" href="ix01.html" title="Index"><link rel="index" href="ix02.html" title="Index of deprecated symbols"><link rel="index" href="ix03.html" title="Index of new symbols in 2.2"><link rel="index" href="ix04.html" title="Index of new symbols in 2.4"><link rel="index" href="ix05.html" title="Index of new symbols in 2.6"><link rel="index" href="ix06.html" title="Index of new symbols in 2.8"><link rel="index" href="ix07.html" title="Index of new symbols in 2.10"><link rel="index" href="ix08.html" title="Index of new symbols in 2.12"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="GtkCellLayout.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="TreeWidgetObjects.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">GTK+ Reference Manual</th><td><a accesskey="n" href="GtkCellEditable.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr><tr><td colspan="5" class="shortcuts"><nobr><a href="#id3820164" class="shortcut">Top</a>  |  <a href="#id3821005" class="shortcut">Description</a>  |  <a href="#id3820636" class="shortcut">Object Hierarchy</a>  |  <a href="#id3820707" class="shortcut">Properties</a>  |  <a href="#id3820966" class="shortcut">Signals</a></nobr></td></tr></table><div class="refentry" lang="en"><a name="GtkCellRenderer"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><a name="id3820164"></a><span class="refentrytitle">GtkCellRenderer</span></h2><p>GtkCellRenderer — An object for rendering a single cell on a GdkDrawable</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">#include <gtk/gtk.h>enum <a class="link" href="GtkCellRenderer.html#GtkCellRendererState">GtkCellRendererState</a>;enum <a class="link" href="GtkCellRenderer.html#GtkCellRendererMode">GtkCellRendererMode</a>; <a class="link" href="GtkCellRenderer.html#GtkCellRenderer-struct">GtkCellRenderer</a>; <a class="link" href="GtkCellRenderer.html#GtkCellRendererClass">GtkCellRendererClass</a>;void <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-get-size">gtk_cell_renderer_get_size</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> *widget, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *cell_area, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *x_offset, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *y_offset, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *width, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *height);void <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-render">gtk_cell_renderer_render</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Windows.html#GdkWindow">GdkWindow</a> *window, <a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> *widget, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *background_area, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *cell_area, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *expose_area, <a class="link" href="GtkCellRenderer.html#GtkCellRendererState">GtkCellRendererState</a> flags);<ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-activate">gtk_cell_renderer_activate</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Event-Structures.html#GdkEvent">GdkEvent</a> *event, <a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> *widget, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *path, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *background_area, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *cell_area, <a class="link" href="GtkCellRenderer.html#GtkCellRendererState">GtkCellRendererState</a> flags);<a class="link" href="GtkCellEditable.html" title="GtkCellEditable">GtkCellEditable</a>* <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-start-editing">gtk_cell_renderer_start_editing</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Event-Structures.html#GdkEvent">GdkEvent</a> *event, <a class="link" href="GtkWidget.html" title="GtkWidget">GtkWidget</a> *widget, const <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar">gchar</a> *path, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *background_area, <ahref="/usr/share/gtk-doc/html/gdk/gdk-Points-Rectangles-and-Regions.html#GdkRectangle">GdkRectangle</a> *cell_area, <a class="link" href="GtkCellRenderer.html#GtkCellRendererState">GtkCellRendererState</a> flags);void <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-editing-canceled">gtk_cell_renderer_editing_canceled</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell);void <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-stop-editing">gtk_cell_renderer_stop_editing</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> canceled);void <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-get-fixed-size">gtk_cell_renderer_get_fixed_size</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *width, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> *height);void <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-set-fixed-size">gtk_cell_renderer_set_fixed_size</a> (<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer">GtkCellRenderer</a> *cell, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> width, <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> height);</pre></div><div class="refsect1" lang="en"><a name="id3820636"></a><h2>Object Hierarchy</h2><pre class="synopsis"> <ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a> +----<ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> +----<a class="link" href="GtkObject.html" title="GtkObject">GtkObject</a> +----GtkCellRenderer +----<a class="link" href="GtkCellRendererText.html" title="GtkCellRendererText">GtkCellRendererText</a> +----<a class="link" href="GtkCellRendererPixbuf.html" title="GtkCellRendererPixbuf">GtkCellRendererPixbuf</a> +----<a class="link" href="GtkCellRendererProgress.html" title="GtkCellRendererProgress">GtkCellRendererProgress</a> +----<a class="link" href="GtkCellRendererToggle.html" title="GtkCellRendererToggle">GtkCellRendererToggle</a></pre></div><div class="refsect1" lang="en"><a name="id3820707"></a><h2>Properties</h2><pre class="synopsis"> "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--cell-background">cell-background</a>" <ahref="/usr/share/gtk-doc/html/gobject/gobject-Standard-Parameter-and-Value-Types.html#gchararray">gchararray</a> : Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--cell-background-gdk">cell-background-gdk</a>" <ahref="/usr/share/gtk-doc/html/gdk/gdk-Colormaps-and-Colors.html#GdkColor">GdkColor</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--cell-background-set">cell-background-set</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--height">height</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--is-expanded">is-expanded</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--is-expander">is-expander</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--mode">mode</a>" <a class="link" href="GtkCellRenderer.html#GtkCellRendererMode">GtkCellRendererMode</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--sensitive">sensitive</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--visible">visible</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean">gboolean</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--width">width</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint">gint</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--xalign">xalign</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat">gfloat</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--xpad">xpad</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--yalign">yalign</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat">gfloat</a> : Read / Write "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer--ypad">ypad</a>" <ahref="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint">guint</a> : Read / Write</pre></div><div class="refsect1" lang="en"><a name="id3820966"></a><h2>Signals</h2><pre class="synopsis"> "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer-editing-canceled">editing-canceled</a>" : Run First "<a class="link" href="GtkCellRenderer.html#GtkCellRenderer-editing-started">editing-started</a>" : Run First</pre></div><div class="refsect1" lang="en"><a name="id3821005"></a><h2>Description</h2><p>The <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer"><span class="type">GtkCellRenderer</span></a> is a base class of a set of objects used forrendering a cell to a <ahref="/usr/share/gtk-doc/html/gdk/gdk-Drawing-Primitives.html#GdkDrawable"><span class="type">GdkDrawable</span></a>. These objects are used primarily bythe <a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a> widget, though they aren't tied to them in anyspecific way. It is worth noting that <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer"><span class="type">GtkCellRenderer</span></a> is not a<a class="link" href="GtkWidget.html" title="GtkWidget"><span class="type">GtkWidget</span></a> and cannot be treated as such.</p><p>The primary use of a <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer"><span class="type">GtkCellRenderer</span></a> is for drawing a certain graphicalelements on a <ahref="/usr/share/gtk-doc/html/gdk/gdk-Drawing-Primitives.html#GdkDrawable"><span class="type">GdkDrawable</span></a>. Typically, one cell renderer is used todraw many cells on the screen. To this extent, it isn't expected that aCellRenderer keep any permanent state around. Instead, any state is setjust prior to use using <ahref="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject"><span class="type">GObject</span></a>s property system. Then, thecell is measured using <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-get-size"><code class="function">gtk_cell_renderer_get_size()</code></a>. Finally, the cellis rendered in the correct location using <a class="link" href="GtkCellRenderer.html#gtk-cell-renderer-render"><code class="function">gtk_cell_renderer_render()</code></a>.</p><p>There are a number of rules that must be followed when writing a new<a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer"><span class="type">GtkCellRenderer</span></a>. First and formost, it's important that a certain setof properties will always yield a cell renderer of the same size,barring a <a class="link" href="GtkStyle.html" title="Styles"><span class="type">GtkStyle</span></a> change. The <a class="link" href="GtkCellRenderer.html" title="GtkCellRenderer"><span class="type">GtkCellRenderer</span></a> also has a number ofgeneric properties that are expected to be honored by all children.</p><p>Beyond merely rendering a cell, cell renderers can optionally provide active user interface elements. A cell renderer can be <em class="firstterm">activatable</em> like <a class="link" href="GtkCellRendererToggle.html" title="GtkCellRendererToggle"><span class="type">GtkCellRendererToggle</span></a>, which toggles when it gets activated by a mouse click, or it can be <em class="firstterm">editable</em> like <a class="link" href="GtkCellRendererText.html" title="GtkCellRendererText"><span class="type">GtkCellRendererText</span></a>, which ⌨️ 快捷键说明
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