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API: Change offscreen windows to use a cairo_surface_t

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This requires changes to all the offscreen surface getters that used to
return a GdkPixmap before.
This commit is contained in:
Benjamin Otte 2010-08-26 13:46:34 +02:00
parent ebdf26e1d8
commit 332652f702
13 changed files with 72 additions and 74 deletions
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8
demos/gtk-demo/offscreen_window.c
View File

@ -485,13 +485,13 @@ gtk_rotated_bin_expose (GtkWidget *widget,
window = gtk_widget_get_window (widget);
if (event->window == window)
{
GdkPixmap *pixmap;
cairo_surface_t *surface;
GtkAllocation child_area;
cairo_t *cr;
if (bin->child && gtk_widget_get_visible (bin->child))
{
pixmap = gdk_offscreen_window_get_pixmap (bin->offscreen_window);
surface = gdk_offscreen_window_get_surface (bin->offscreen_window);
gtk_widget_get_allocation (bin->child, &child_area);
cr = gdk_cairo_create (window);
@ -508,11 +508,11 @@ gtk_rotated_bin_expose (GtkWidget *widget,
cairo_translate (cr, -child_area.width / 2, -child_area.height / 2);
/* clip */
gdk_drawable_get_size (pixmap, &width, &height);
gdk_drawable_get_size (bin->offscreen_window, &width, &height);
cairo_rectangle (cr, 0, 0, width, height);
cairo_clip (cr);
/* paint */
gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);

10
demos/gtk-demo/offscreen_window2.c
View File

@ -389,15 +389,15 @@ gtk_mirror_bin_expose (GtkWidget *widget,
window = gtk_widget_get_window (widget);
if (event->window == window)
{
GdkPixmap *pixmap;
cairo_surface_t *surface;
cairo_t *cr;
cairo_matrix_t matrix;
cairo_pattern_t *mask;
if (bin->child && gtk_widget_get_visible (bin->child))
{
pixmap = gdk_offscreen_window_get_pixmap (bin->offscreen_window);
gdk_drawable_get_size (pixmap, &width, &height);
surface = gdk_offscreen_window_get_surface (bin->offscreen_window);
gdk_drawable_get_size (bin->offscreen_window, &width, &height);
cr = gdk_cairo_create (window);
@ -407,7 +407,7 @@ gtk_mirror_bin_expose (GtkWidget *widget,
cairo_clip (cr);
/* paint the offscreen child */
gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);
cairo_restore (cr);
@ -420,7 +420,7 @@ gtk_mirror_bin_expose (GtkWidget *widget,
cairo_rectangle (cr, 0, height, width, height);
cairo_clip (cr);
gdk_cairo_set_source_pixmap (cr, pixmap, 0, height);
cairo_set_source_surface (cr, surface, 0, height);
/* create linear gradient as mask-pattern to fade out the source */
mask = cairo_pattern_create_linear (0.0, height, 0.0, 2*height);

2
docs/reference/gdk/gdk3-sections.txt
View File

@ -530,7 +530,7 @@ GdkPointerHooks
gdk_set_pointer_hooks
<SUBSECTION>
gdk_offscreen_window_get_pixmap
gdk_offscreen_window_get_surface
gdk_offscreen_window_set_embedder
gdk_offscreen_window_get_embedder
gdk_window_geometry_changed

2
docs/reference/gtk/gtk3-sections.txt
View File

@ -2266,7 +2266,7 @@ GTK_OBJECT_UNSET_FLAGS
<TITLE>GtkOffscreenWindow</TITLE>
GtkOffscreenWindow
gtk_offscreen_window_new
gtk_offscreen_window_get_pixmap
gtk_offscreen_window_get_surface
gtk_offscreen_window_get_pixbuf
<SUBSECTION Standard>
GTK_OFFSCREEN_WINDOW

2
gdk/gdk.symbols
View File

@ -668,7 +668,7 @@ gdk_window_get_device_position
#if IN_HEADER(__GDK_WINDOW_H__)
#if IN_FILE(__GDK_OFFSCREEN_WINDOW_C__)
gdk_offscreen_window_get_pixmap
gdk_offscreen_window_get_surface
gdk_offscreen_window_set_embedder
gdk_offscreen_window_get_embedder
#endif

53
gdk/gdkoffscreenwindow.c
View File

@ -30,7 +30,6 @@
#include "gdkwindow.h"
#include "gdkinternals.h"
#include "gdkwindowimpl.h"
#include "gdkpixmap.h"
#include "gdkdrawable.h"
#include "gdktypes.h"
#include "gdkscreen.h"
@ -55,7 +54,7 @@ struct _GdkOffscreenWindow
GdkColormap *colormap;
GdkScreen *screen;
GdkPixmap *pixmap;
cairo_surface_t *surface;
GdkWindow *embedder;
};
@ -86,7 +85,7 @@ gdk_offscreen_window_finalize (GObject *object)
{
GdkOffscreenWindow *offscreen = GDK_OFFSCREEN_WINDOW (object);
g_object_unref (offscreen->pixmap);
cairo_surface_destroy (offscreen->surface);
G_OBJECT_CLASS (gdk_offscreen_window_parent_class)->finalize (object);
}
@ -138,7 +137,7 @@ gdk_offscreen_window_ref_cairo_surface (GdkDrawable *drawable)
{
GdkOffscreenWindow *offscreen = GDK_OFFSCREEN_WINDOW (drawable);
return _gdk_drawable_ref_cairo_surface (offscreen->pixmap);
return cairo_surface_reference (offscreen->surface);
}
static GdkColormap*
@ -241,11 +240,10 @@ _gdk_offscreen_window_new (GdkWindow *window,
offscreen->colormap = gdk_colormap_new (visual, FALSE);
}
offscreen->pixmap = gdk_pixmap_new ((GdkDrawable *)private->parent,
offscreen->surface = gdk_window_create_similar_surface ((GdkWindow *)private->parent,
CAIRO_CONTENT_COLOR,
private->width,
private->height,
private->depth);
gdk_drawable_set_colormap (offscreen->pixmap, offscreen->colormap);
private->height);
}
static gboolean
@ -399,19 +397,17 @@ gdk_offscreen_window_get_device_state (GdkWindow *window,
}
/**
* gdk_offscreen_window_get_pixmap:
* gdk_offscreen_window_get_surface:
* @window: a #GdkWindow
*
* Gets the offscreen pixmap that an offscreen window renders into.
* Gets the offscreen surface that an offscreen window renders into.
* If you need to keep this around over window resizes, you need to
* add a reference to it.
*
* Returns: The offscreen pixmap, or %NULL if not offscreen
*
* Since: 2.18
* Returns: The offscreen surface, or %NULL if not offscreen
*/
GdkPixmap *
gdk_offscreen_window_get_pixmap (GdkWindow *window)
cairo_surface_t *
gdk_offscreen_window_get_surface (GdkWindow *window)
{
GdkWindowObject *private = (GdkWindowObject *)window;
GdkOffscreenWindow *offscreen;
@ -422,7 +418,7 @@ gdk_offscreen_window_get_pixmap (GdkWindow *window)
return NULL;
offscreen = GDK_OFFSCREEN_WINDOW (private->impl);
return offscreen->pixmap;
return offscreen->surface;
}
static void
@ -450,7 +446,7 @@ gdk_offscreen_window_move_resize_internal (GdkWindow *window,
GdkWindowObject *private = (GdkWindowObject *)window;
GdkOffscreenWindow *offscreen;
gint dx, dy, dw, dh;
GdkPixmap *old_pixmap;
cairo_surface_t *old_surface;
offscreen = GDK_OFFSCREEN_WINDOW (private->impl);
@ -478,16 +474,18 @@ gdk_offscreen_window_move_resize_internal (GdkWindow *window,
private->width = width;
private->height = height;
old_pixmap = offscreen->pixmap;
offscreen->pixmap = gdk_pixmap_new (GDK_DRAWABLE (old_pixmap),
old_surface = offscreen->surface;
offscreen->surface = cairo_surface_create_similar (old_surface,
cairo_surface_get_content (old_surface),
width,
height,
private->depth);
height);
cr = gdk_cairo_create (offscreen->pixmap);
gdk_cairo_set_source_pixmap (cr, old_pixmap, 0, 0);
cr = cairo_create (offscreen->surface);
cairo_set_source_surface (cr, old_surface, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_destroy (old_surface);
}
if (GDK_WINDOW_IS_MAPPED (private))
@ -661,13 +659,10 @@ gdk_offscreen_window_translate (GdkWindow *window,
gint dx,
gint dy)
{
cairo_surface_t *surface;
GdkOffscreenWindow *offscreen = GDK_OFFSCREEN_WINDOW (((GdkWindowObject *) window)->impl);
cairo_t *cr;
/* Can't use gdk_cairo_create here due to clipping */
surface = _gdk_drawable_ref_cairo_surface (window);
cr = cairo_create (surface);
cairo_surface_destroy (surface);
cr = cairo_create (offscreen->surface);
area = cairo_region_copy (area);
@ -679,7 +674,7 @@ gdk_offscreen_window_translate (GdkWindow *window,
*/
cairo_push_group (cr);
gdk_cairo_set_source_pixmap (cr, window, dx, dy);
cairo_set_source_surface (cr, offscreen->surface, dx, dy);
cairo_paint (cr);
cairo_pop_group_to_source (cr);

2
gdk/gdkwindow.c
View File

@ -3004,7 +3004,7 @@ gdk_window_end_paint (GdkWindow *window)
full_clip = cairo_region_copy (private->clip_region_with_children);
cairo_region_intersect (full_clip, paint->region);
cr = gdk_cairo_create (private->impl);
cr = gdk_cairo_create (window);
cairo_set_source_surface (cr, paint->surface, 0, 0);
gdk_cairo_region (cr, full_clip);
cairo_fill (cr);

3
gdk/gdkwindow.h
View File

@ -846,7 +846,8 @@ GdkPointerHooks *gdk_set_pointer_hooks (const GdkPointerHooks *new_hooks);
GdkWindow *gdk_get_default_root_window (void);
/* Offscreen redirection */
GdkPixmap *gdk_offscreen_window_get_pixmap (GdkWindow *window);
cairo_surface_t *
gdk_offscreen_window_get_surface (GdkWindow *window);
void gdk_offscreen_window_set_embedder (GdkWindow *window,
GdkWindow *embedder);
GdkWindow *gdk_offscreen_window_get_embedder (GdkWindow *window);

2
gtk/gtk.symbols
View File

@ -2085,7 +2085,7 @@ gtk_object_get_type G_GNUC_CONST
#if IN_FILE(__GTK_OFFSCREEN_WINDOW_C__)
gtk_offscreen_window_get_type G_GNUC_CONST
gtk_offscreen_window_new
gtk_offscreen_window_get_pixmap
gtk_offscreen_window_get_surface
gtk_offscreen_window_get_pixbuf
#endif
#endif

28
gtk/gtkoffscreenwindow.c
View File

@ -37,7 +37,7 @@
*
* The idea is to take a widget and manually set the state of it,
* add it to a GtkOffscreenWindow and then retrieve the snapshot
* as a #GdkPixmap or #GdkPixbuf.
* as a #cairo_surface_t or #GdkPixbuf.
*
* GtkOffscreenWindow derives from #GtkWindow only as an implementation
* detail. Applications should not use any API specific to #GtkWindow
@ -270,24 +270,24 @@ gtk_offscreen_window_new (void)
}
/**
* gtk_offscreen_window_get_pixmap:
* gtk_offscreen_window_get_surface:
* @offscreen: the #GtkOffscreenWindow contained widget.
*
* Retrieves a snapshot of the contained widget in the form of
* a #GdkPixmap. If you need to keep this around over window
* a #cairo_surface_t. If you need to keep this around over window
* resizes then you should add a reference to it.
*
* Returns: (transfer none): A #GdkPixmap pointer to the offscreen pixmap,
* or %NULL.
* Returns: (transfer none): A #cairo_surface_t pointer to the offscreen
* surface, or %NULL.
*
* Since: 2.20
*/
GdkPixmap *
gtk_offscreen_window_get_pixmap (GtkOffscreenWindow *offscreen)
cairo_surface_t *
gtk_offscreen_window_get_surface (GtkOffscreenWindow *offscreen)
{
g_return_val_if_fail (GTK_IS_OFFSCREEN_WINDOW (offscreen), NULL);
return gdk_offscreen_window_get_pixmap (gtk_widget_get_window (GTK_WIDGET (offscreen)));
return gdk_offscreen_window_get_surface (gtk_widget_get_window (GTK_WIDGET (offscreen)));
}
/**
@ -306,20 +306,22 @@ gtk_offscreen_window_get_pixmap (GtkOffscreenWindow *offscreen)
GdkPixbuf *
gtk_offscreen_window_get_pixbuf (GtkOffscreenWindow *offscreen)
{
GdkPixmap *pixmap = NULL;
cairo_surface_t *surface;
GdkPixbuf *pixbuf = NULL;
GdkWindow *window;
g_return_val_if_fail (GTK_IS_OFFSCREEN_WINDOW (offscreen), NULL);
pixmap = gdk_offscreen_window_get_pixmap (gtk_widget_get_window (GTK_WIDGET (offscreen)));
window = gtk_widget_get_window (GTK_WIDGET (offscreen));
surface = gdk_offscreen_window_get_surface (window);
if (pixmap != NULL)
if (surface != NULL)
{
gint width, height;
gdk_drawable_get_size (pixmap, &width, &height);
gdk_drawable_get_size (window, &width, &height);
pixbuf = gdk_pixbuf_get_from_drawable (NULL, pixmap, NULL,
pixbuf = gdk_pixbuf_get_from_surface (NULL, surface,
0, 0, 0, 0,
width, height);
}

2
gtk/gtkoffscreenwindow.h
View File

@ -52,7 +52,7 @@ struct _GtkOffscreenWindowClass
GType gtk_offscreen_window_get_type (void) G_GNUC_CONST;
GtkWidget *gtk_offscreen_window_new (void);
GdkPixmap *gtk_offscreen_window_get_pixmap (GtkOffscreenWindow *offscreen);
cairo_surface_t *gtk_offscreen_window_get_surface (GtkOffscreenWindow *offscreen);
GdkPixbuf *gtk_offscreen_window_get_pixbuf (GtkOffscreenWindow *offscreen);
G_END_DECLS

12
tests/gtkoffscreenbox.c
View File

@ -598,19 +598,19 @@ gtk_offscreen_box_expose (GtkWidget *widget,
window = gtk_widget_get_window (widget);
if (event->window == window)
{
GdkPixmap *pixmap;
cairo_surface_t *surface;
GtkAllocation child_area;
cairo_t *cr;
int start_y = 0;
if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
{
pixmap = gdk_offscreen_window_get_pixmap (offscreen_box->offscreen_window1);
surface = gdk_offscreen_window_get_surface (offscreen_box->offscreen_window1);
gtk_widget_get_allocation (offscreen_box->child1, &child_area);
cr = gdk_cairo_create (window);
gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
@ -622,7 +622,7 @@ gtk_offscreen_box_expose (GtkWidget *widget,
{
gint w, h;
pixmap = gdk_offscreen_window_get_pixmap (offscreen_box->offscreen_window2);
surface = gdk_offscreen_window_get_surface (offscreen_box->offscreen_window2);
gtk_widget_get_allocation (offscreen_box->child2, &child_area);
cr = gdk_cairo_create (window);
@ -634,12 +634,12 @@ gtk_offscreen_box_expose (GtkWidget *widget,
cairo_translate (cr, -child_area.width / 2, -child_area.height / 2);
/* clip */
gdk_drawable_get_size (pixmap, &w, &h);
gdk_drawable_get_size (offscreen_box->offscreen_window2, &w, &h);
cairo_rectangle (cr, 0, 0, w, h);
cairo_clip (cr);
/* paint */
gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);

6
tests/testoffscreenwindow.c
View File

@ -6,15 +6,15 @@ da_expose (GtkWidget *widget,
gpointer user_data)
{
GtkOffscreenWindow *offscreen = (GtkOffscreenWindow *)user_data;
GdkPixmap *pixmap;
cairo_surface_t *surface;
cairo_t *cr;
if (gtk_widget_is_drawable (widget))
{
pixmap = gtk_offscreen_window_get_pixmap (offscreen);
surface = gtk_offscreen_window_get_surface (offscreen);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_set_source_pixmap (cr, pixmap, 50, 50);
cairo_set_source_surface (cr, surface, 50, 50);
cairo_paint (cr);
cairo_destroy (cr);
}