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Add a background example to the docs

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This commit is contained in:
Matthias Clasen 2010-11-23 13:36:44 -05:00 committed by Carlos Garnacho
parent d532c0e5c2
commit e522381183
5 changed files with 66 additions and 2 deletions
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3
docs/reference/gtk/Makefile.am
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@ -345,7 +345,8 @@ HTML_IMAGES = \
$(srcdir)/images/checks.png \
$(srcdir)/images/options.png \
$(srcdir)/images/arrows.png \
$(srcdir)/images/expanders.png
$(srcdir)/images/expanders.png \
$(srcdir)/images/background.png
# Extra options to supply to gtkdoc-fixref
FIXXREF_OPTIONS=--extra-dir=../gdk/html \

2
docs/reference/gtk/gtk-docs.sgml
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@ -3,6 +3,8 @@
"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
<!ENTITY % local.common.attrib "xmlns:xi CDATA #FIXED 'http://www.w3.org/2003/XInclude'">
<!ENTITY version SYSTEM "version.xml">
<!ENTITY pi "&#960;">
<!ENTITY solidus "&#8260;">
]>
<book id="index" xmlns:xi="http://www.w3.org/2003/XInclude">
<bookinfo>

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docs/reference/gtk/images/background.png Normal file
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6
gtk/gtkstylecontext.c
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@ -3027,6 +3027,12 @@ gtk_render_arrow (GtkStyleContext *context,
*
* Renders the background of an element.
*
* <example>
* <title>Typical background rendering, showing the effect of
* @border-image, @border-width and @border-radius</title>
* <inlinegraphic fileref="background.png" format="PNG"/>
* </example>
*
* Since: 3.0.
**/
void

57
tests/styleexamples.c
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@ -94,6 +94,57 @@ draw_cb_expanders (GtkWidget *widget, cairo_t *cr)
return TRUE;
}
static gboolean
draw_cb_background (GtkWidget *widget, cairo_t *cr)
{
GtkStyleProvider *provider;
GtkStyleContext *context;
context = gtk_widget_get_style_context (widget);
gtk_style_context_save (context);
provider = (GtkStyleProvider *)gtk_css_provider_new ();
gtk_css_provider_load_from_data (GTK_CSS_PROVIDER (provider),
"* {\n"
" border-radius: 10;\n"
" border-width: 0;\n"
" background-image: -gtk-gradient (linear, left top, right bottom, from(#ff00ff), to(#aabbcc));\n"
"}\n", -1, NULL);
gtk_style_context_add_provider (context, provider, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
gtk_style_context_set_junction_sides (context, 0);
gtk_render_background (context, cr, 12, 12, 100, 100);
gtk_style_context_remove_provider (context, provider);
gtk_style_context_restore (context);
return TRUE;
}
static gboolean
draw_cb_frame (GtkWidget *widget, cairo_t *cr)
{
GtkStyleProvider *provider;
GtkStyleContext *context;
context = gtk_widget_get_style_context (widget);
gtk_style_context_save (context);
provider = (GtkStyleProvider *)gtk_css_provider_new ();
gtk_css_provider_load_from_data (GTK_CSS_PROVIDER (provider),
".frame {\n"
" border-image: url('gradient1.png') 10 10 10 10 stretch;\n"
" border-style; solid\n"
"}\n", -1, NULL);
gtk_style_context_add_provider (context, provider, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
gtk_style_context_set_junction_sides (context, 0);
gtk_render_frame (context, cr, 12, 12, 25, 25);
gtk_style_context_remove_provider (context, provider);
gtk_style_context_restore (context);
return TRUE;
}
static char *what;
static gboolean
@ -106,7 +157,11 @@ draw_cb (GtkWidget *widget, cairo_t *cr)
else if (strcmp (what, "arrow") == 0)
return draw_cb_arrows (widget, cr);
else if (strcmp (what, "expander") == 0)
return draw_cb_expanders (widget ,cr);
return draw_cb_expanders (widget, cr);
else if (strcmp (what, "background") == 0)
return draw_cb_background (widget, cr);
else if (strcmp (what, "frame") == 0)
return draw_cb_frame (widget, cr);
return FALSE;
}