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colorplane: Implement snapshot()

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This commit is contained in:
Benjamin Otte 2016-12-31 23:09:35 +01:00
parent 2fe01a5b57
commit 4ead5c3ba8
1 changed files with 16 additions and 10 deletions
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26
gtk/gtkcolorplane.c
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@ -19,12 +19,13 @@
#include "gtkcolorplaneprivate.h"
#include "gtkgesturedrag.h"
#include "gtkgesturelongpress.h"
#include "gtkaccessible.h"
#include "gtkadjustment.h"
#include "gtkcolorutils.h"
#include "gtkgesturedrag.h"
#include "gtkgesturelongpress.h"
#include "gtkintl.h"
#include "gtksnapshot.h"
struct _GtkColorPlanePrivate
{
@ -66,21 +67,26 @@ sv_to_xy (GtkColorPlane *plane,
*y = CLAMP (height * (1 - s), 0, height - 1);
}
static gboolean
plane_draw (GtkWidget *widget,
cairo_t *cr)
static void
plane_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkColorPlane *plane = GTK_COLOR_PLANE (widget);
gint x, y;
gint width, height;
cairo_set_source_surface (cr, plane->priv->surface, 0, 0);
cairo_paint (cr);
cairo_t *cr;
sv_to_xy (plane, &x, &y);
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
cr = gtk_snapshot_append_cairo_node (snapshot,
&GRAPHENE_RECT_INIT (0, 0, width, height),
"ColorPlane");
cairo_set_source_surface (cr, plane->priv->surface, 0, 0);
cairo_paint (cr);
cairo_move_to (cr, 0, y + 0.5);
cairo_line_to (cr, width, y + 0.5);
@ -104,7 +110,7 @@ plane_draw (GtkWidget *widget,
cairo_stroke (cr);
}
return FALSE;
cairo_destroy (cr);
}
static void
@ -560,7 +566,7 @@ gtk_color_plane_class_init (GtkColorPlaneClass *class)
object_class->finalize = plane_finalize;
object_class->set_property = plane_set_property;
widget_class->draw = plane_draw;
widget_class->snapshot = plane_snapshot;
widget_class->size_allocate = plane_size_allocate;
widget_class->realize = plane_realize;
widget_class->unrealize = plane_unrealize;