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GtkThemingEngine: Add vmethod to render a handle area.

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This commit is contained in:
Carlos Garnacho 2010-03-27 21:27:52 +01:00
parent 160821042c
commit 9e5d9ff28d
2 changed files with 90 additions and 0 deletions
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83
gtk/gtkthemingengine.c
View File

@ -119,6 +119,13 @@ static void gtk_theming_engine_render_extension (GtkThemingEngine *engine,
gdouble width,
gdouble height,
GtkPositionType gap_side);
static void gtk_theming_engine_render_handle (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkOrientation orientation);
G_DEFINE_TYPE (GtkThemingEngine, gtk_theming_engine, G_TYPE_OBJECT)
@ -162,6 +169,7 @@ gtk_theming_engine_class_init (GtkThemingEngineClass *klass)
klass->render_slider = gtk_theming_engine_render_slider;
klass->render_frame_gap = gtk_theming_engine_render_frame_gap;
klass->render_extension = gtk_theming_engine_render_extension;
klass->render_handle = gtk_theming_engine_render_handle;
g_type_class_add_private (object_class, sizeof (GtkThemingEnginePrivate));
}
@ -1344,5 +1352,80 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
gdk_color_free (bg_color);
}
static void
paint_point (cairo_t *cr,
const GdkColor *lighter,
const GdkColor *darker,
gdouble x,
gdouble y)
{
cairo_move_to (cr, x - 0.5, y + 1);
cairo_line_to (cr, x - 0.5, y - 0.5);
cairo_line_to (cr, x + 1, y - 0.5);
gdk_cairo_set_source_color (cr, lighter);
cairo_stroke (cr);
cairo_move_to (cr, x + 1.5, y);
cairo_line_to (cr, x + 1.5, y + 1.5);
cairo_line_to (cr, x, y + 1.5);
gdk_cairo_set_source_color (cr, darker);
cairo_stroke (cr);
}
static void
gtk_theming_engine_render_handle (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkOrientation orientation)
{
GtkStateFlags flags;
GtkStateType state;
GdkColor *bg_color;
GdkColor lighter, darker;
gint xx, yy;
cairo_save (cr);
flags = gtk_theming_engine_get_state (engine);
if (flags & GTK_STATE_FLAG_ACTIVE)
state = GTK_STATE_ACTIVE;
else 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;
cairo_set_line_width (cr, 1);
gtk_theming_engine_get (engine, state,
"background-color", &bg_color,
NULL);
color_shade (bg_color, 0.7, &darker);
color_shade (bg_color, 1.3, &lighter);
add_path_rounded_rectangle (cr, 0,
SIDE_BOTTOM | SIDE_RIGHT | SIDE_TOP | SIDE_LEFT,
x, y, width, height);
cairo_close_path (cr);
gdk_cairo_set_source_color (cr, bg_color);
cairo_fill (cr);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
for (xx = x + width / 2 - 15; xx <= x + width / 2 + 15; xx += 5)
paint_point (cr, &lighter, &darker, xx, y + height / 2 - 1);
else
for (yy = y + height / 2 - 15; yy <= y + height / 2 + 15; yy += 5)
paint_point (cr, &lighter, &darker, x + width / 2, yy);
cairo_restore (cr);
gdk_color_free (bg_color);
}
#define __GTK_THEMING_ENGINE_C__
#include "gtkaliasdef.c"

7
gtk/gtkthemingengine.h
View File

@ -125,6 +125,13 @@ struct GtkThemingEngineClass
gdouble width,
gdouble height,
GtkOrientation orientation);
void (* render_handle) (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkOrientation orientation);
};
GType gtk_theming_engine_get_type (void) G_GNUC_CONST;