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GtkThemingEngine: Add vmethod to render expanders.

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This commit is contained in:
Carlos Garnacho 2010-03-27 20:15:45 +01:00
parent b4c8eba480
commit 19fdaabf4c
2 changed files with 68 additions and 0 deletions
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62
gtk/gtkthemingengine.c
View File

@ -73,6 +73,12 @@ static void gtk_theming_engine_render_frame (GtkThemingEngine *engine,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_expander (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
G_DEFINE_TYPE (GtkThemingEngine, gtk_theming_engine, G_TYPE_OBJECT)
@ -109,6 +115,7 @@ gtk_theming_engine_class_init (GtkThemingEngineClass *klass)
klass->render_arrow = gtk_theming_engine_render_arrow;
klass->render_background = gtk_theming_engine_render_background;
klass->render_frame = gtk_theming_engine_render_frame;
klass->render_expander = gtk_theming_engine_render_expander;
g_type_class_add_private (object_class, sizeof (GtkThemingEnginePrivate));
}
@ -800,5 +807,60 @@ gtk_theming_engine_render_frame (GtkThemingEngine *engine,
cairo_restore (cr);
}
static void
gtk_theming_engine_render_expander (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
GtkStateFlags flags;
GdkColor *bg_color, *fg_color, *base_color;
GtkStateType state;
gdouble angle;
cairo_save (cr);
flags = gtk_theming_engine_get_state (engine);
if (flags & GTK_STATE_FLAG_PRELIGHT)
state = GTK_STATE_PRELIGHT;
else if (flags & GTK_STATE_FLAG_INSENSITIVE)
state = GTK_STATE_INSENSITIVE;
else
state = GTK_STATE_NORMAL;
gtk_theming_engine_get (engine, state,
"foreground-color", &fg_color,
"background-color", &bg_color,
"base-color", &base_color,
NULL);
if (flags & GTK_STATE_FLAG_ACTIVE)
angle = G_PI;
else
angle = G_PI / 2;
cairo_set_line_width (cr, 1);
add_path_arrow (cr, angle, x + 2, y + 2,
MIN (width - 1, height - 1) - 4);
if (flags & GTK_STATE_FLAG_PRELIGHT)
gdk_cairo_set_source_color (cr, fg_color);
else
gdk_cairo_set_source_color (cr, base_color);
cairo_fill_preserve (cr);
gdk_cairo_set_source_color (cr, fg_color);
cairo_stroke (cr);
cairo_restore (cr);
gdk_color_free (base_color);
gdk_color_free (fg_color);
gdk_color_free (bg_color);
}
#define __GTK_THEMING_ENGINE_C__
#include "gtkaliasdef.c"

6
gtk/gtkthemingengine.h
View File

@ -79,6 +79,12 @@ struct GtkThemingEngineClass
gdouble x,
gdouble y,
gdouble size);
void (* render_expander) (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
};
GType gtk_theming_engine_get_type (void) G_GNUC_CONST;