#include "gdkcairocontextprivate.h"
-#include "gdkdisplayprivate.h"
+#include "gdkcairo.h"
#include "gdkinternals.h"
-#include "gdkintl.h"
/**
* SECTION:gdkcairocontext
G_DEFINE_TYPE_WITH_CODE (GdkCairoContext, gdk_cairo_context, GDK_TYPE_DRAW_CONTEXT,
G_ADD_PRIVATE (GdkCairoContext))
-void
-gdk_surface_begin_paint_internal (GdkSurface *surface,
- const cairo_region_t *region);
+static cairo_surface_t *
+gdk_surface_ref_impl_surface (GdkSurface *surface)
+{
+ return GDK_SURFACE_IMPL_GET_CLASS (surface->impl)->ref_cairo_surface (surface);
+}
+
+static cairo_content_t
+gdk_surface_get_content (GdkSurface *surface)
+{
+ cairo_surface_t *cairo_surface;
+ cairo_content_t content;
+
+ g_return_val_if_fail (GDK_IS_SURFACE (surface), 0);
+
+ cairo_surface = gdk_surface_ref_impl_surface (surface);
+ content = cairo_surface_get_content (cairo_surface);
+ cairo_surface_destroy (cairo_surface);
+
+ return content;
+}
+
+static void
+gdk_surface_clear_backing_region (GdkSurface *surface)
+{
+ cairo_t *cr;
+
+ if (GDK_SURFACE_DESTROYED (surface))
+ return;
+
+ cr = cairo_create (surface->current_paint.surface);
+
+ cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
+ gdk_cairo_region (cr, surface->current_paint.region);
+ cairo_fill (cr);
+
+ cairo_destroy (cr);
+}
+
+static void
+gdk_surface_free_current_paint (GdkSurface *surface)
+{
+ cairo_surface_destroy (surface->current_paint.surface);
+ surface->current_paint.surface = NULL;
+
+ cairo_region_destroy (surface->current_paint.region);
+ surface->current_paint.region = NULL;
+
+ surface->current_paint.surface_needs_composite = FALSE;
+}
static void
gdk_cairo_context_begin_frame (GdkDrawContext *draw_context,
cairo_region_t *region)
{
- gdk_surface_begin_paint_internal (gdk_draw_context_get_surface (draw_context),
- region);
+ GdkRectangle clip_box;
+ GdkSurface *surface;
+ GdkSurfaceImplClass *impl_class;
+ double sx, sy;
+ gboolean needs_surface;
+ cairo_content_t surface_content;
+
+ surface = gdk_draw_context_get_surface (draw_context);
+ if (surface->current_paint.surface != NULL)
+ {
+ g_warning ("A paint operation on the surface is alredy in progress. "
+ "This is not allowed.");
+ return;
+ }
+
+ impl_class = GDK_SURFACE_IMPL_GET_CLASS (surface->impl);
+
+ needs_surface = TRUE;
+ if (impl_class->begin_paint)
+ needs_surface = impl_class->begin_paint (surface);
+
+ surface->current_paint.region = cairo_region_copy (region);
+ cairo_region_get_extents (surface->current_paint.region, &clip_box);
+
+ surface_content = gdk_surface_get_content (surface);
+
+ if (needs_surface)
+ {
+ surface->current_paint.surface = gdk_surface_create_similar_surface (surface,
+ surface_content,
+ MAX (clip_box.width, 1),
+ MAX (clip_box.height, 1));
+ sx = sy = 1;
+ cairo_surface_get_device_scale (surface->current_paint.surface, &sx, &sy);
+ cairo_surface_set_device_offset (surface->current_paint.surface, -clip_box.x*sx, -clip_box.y*sy);
+ gdk_cairo_surface_mark_as_direct (surface->current_paint.surface, surface);
+
+ surface->current_paint.surface_needs_composite = TRUE;
+ }
+ else
+ {
+ surface->current_paint.surface = gdk_surface_ref_impl_surface (surface);
+ surface->current_paint.surface_needs_composite = FALSE;
+ }
+
+ if (!cairo_region_is_empty (surface->current_paint.region))
+ gdk_surface_clear_backing_region (surface);
}
-void
-gdk_surface_end_paint_internal (GdkSurface *surface);
-
static void
gdk_cairo_context_end_frame (GdkDrawContext *draw_context,
cairo_region_t *painted,
cairo_region_t *damage)
{
- gdk_surface_end_paint_internal (gdk_draw_context_get_surface (draw_context));
+ GdkSurfaceImplClass *impl_class;
+ GdkSurface *surface;
+ cairo_t *cr;
+
+ surface = gdk_draw_context_get_surface (draw_context);
+ if (surface->current_paint.surface == NULL)
+ {
+ g_warning (G_STRLOC": no preceding call to gdk_surface_begin_draw_frame(), see documentation");
+ return;
+ }
+
+ impl_class = GDK_SURFACE_IMPL_GET_CLASS (surface->impl);
+
+ if (impl_class->end_paint)
+ impl_class->end_paint (surface);
+
+ if (surface->current_paint.surface_needs_composite)
+ {
+ cairo_surface_t *cairo_surface;
+
+ cairo_surface = gdk_surface_ref_impl_surface (surface);
+ cr = cairo_create (cairo_surface);
+
+ cairo_set_source_surface (cr, surface->current_paint.surface, 0, 0);
+ gdk_cairo_region (cr, surface->current_paint.region);
+ cairo_clip (cr);
+
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+ cairo_paint (cr);
+
+ cairo_destroy (cr);
+
+ cairo_surface_flush (cairo_surface);
+ cairo_surface_destroy (cairo_surface);
+ }
+
+ gdk_surface_free_current_paint (surface);
}
static void
GValue *value,
GParamSpec *pspec);
-static void gdk_surface_clear_backing_region (GdkSurface *surface);
-
static void recompute_visible_regions (GdkSurface *private,
gboolean recalculate_children);
static void gdk_surface_invalidate_in_parent (GdkSurface *private);
surface);
}
-static void
-gdk_surface_free_current_paint (GdkSurface *surface)
-{
- cairo_surface_destroy (surface->current_paint.surface);
- surface->current_paint.surface = NULL;
-
- cairo_region_destroy (surface->current_paint.region);
- surface->current_paint.region = NULL;
-
- surface->current_paint.surface_needs_composite = FALSE;
-}
-
/**
* _gdk_surface_destroy_hierarchy:
* @surface: a #GdkSurface
gdk_surface_set_frame_clock (surface, NULL);
}
- gdk_surface_free_current_paint (surface);
-
if (surface->surface_type == GDK_SURFACE_FOREIGN)
g_assert (surface->children == NULL);
else
return surface->state;
}
-static cairo_content_t
-gdk_surface_get_content (GdkSurface *surface)
-{
- cairo_surface_t *cairo_surface;
- cairo_content_t content;
-
- g_return_val_if_fail (GDK_IS_SURFACE (surface), 0);
-
- cairo_surface = gdk_surface_ref_impl_surface (surface);
- content = cairo_surface_get_content (cairo_surface);
- cairo_surface_destroy (cairo_surface);
-
- return content;
-}
-
static cairo_surface_t *
gdk_surface_ref_impl_surface (GdkSurface *surface)
{
NULL);
}
-void
-gdk_surface_begin_paint_internal (GdkSurface *surface,
- const cairo_region_t *region);
-void
-gdk_surface_begin_paint_internal (GdkSurface *surface,
- const cairo_region_t *region)
-{
- GdkRectangle clip_box;
- GdkSurfaceImplClass *impl_class;
- double sx, sy;
- gboolean needs_surface;
- cairo_content_t surface_content;
-
- if (surface->current_paint.surface != NULL)
- {
- g_warning ("A paint operation on the surface is alredy in progress. "
- "This is not allowed.");
- return;
- }
-
- impl_class = GDK_SURFACE_IMPL_GET_CLASS (surface->impl);
-
- needs_surface = TRUE;
- if (impl_class->begin_paint)
- needs_surface = impl_class->begin_paint (surface);
-
- surface->current_paint.region = cairo_region_copy (region);
- cairo_region_get_extents (surface->current_paint.region, &clip_box);
-
- surface_content = gdk_surface_get_content (surface);
-
- if (needs_surface)
- {
- surface->current_paint.surface = gdk_surface_create_similar_surface (surface,
- surface_content,
- MAX (clip_box.width, 1),
- MAX (clip_box.height, 1));
- sx = sy = 1;
- cairo_surface_get_device_scale (surface->current_paint.surface, &sx, &sy);
- cairo_surface_set_device_offset (surface->current_paint.surface, -clip_box.x*sx, -clip_box.y*sy);
- gdk_cairo_surface_mark_as_direct (surface->current_paint.surface, surface);
-
- surface->current_paint.surface_needs_composite = TRUE;
- }
- else
- {
- surface->current_paint.surface = gdk_surface_ref_impl_surface (surface);
- surface->current_paint.surface_needs_composite = FALSE;
- }
-
- if (!cairo_region_is_empty (surface->current_paint.region))
- gdk_surface_clear_backing_region (surface);
-}
-
-void
-gdk_surface_end_paint_internal (GdkSurface *surface);
-void
-gdk_surface_end_paint_internal (GdkSurface *surface)
-{
- GdkSurfaceImplClass *impl_class;
- cairo_t *cr;
-
- if (surface->current_paint.surface == NULL)
- {
- g_warning (G_STRLOC": no preceding call to gdk_surface_begin_draw_frame(), see documentation");
- return;
- }
-
- impl_class = GDK_SURFACE_IMPL_GET_CLASS (surface->impl);
-
- if (impl_class->end_paint)
- impl_class->end_paint (surface);
-
- if (surface->current_paint.surface_needs_composite)
- {
- cairo_surface_t *cairo_surface;
-
- cairo_surface = gdk_surface_ref_impl_surface (surface);
- cr = cairo_create (cairo_surface);
-
- cairo_set_source_surface (cr, surface->current_paint.surface, 0, 0);
- gdk_cairo_region (cr, surface->current_paint.region);
- cairo_clip (cr);
-
- cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
- cairo_paint (cr);
-
- cairo_destroy (cr);
-
- cairo_surface_flush (cairo_surface);
- cairo_surface_destroy (cairo_surface);
- }
-
- gdk_surface_free_current_paint (surface);
-}
-
/**
* gdk_surface_begin_draw_frame:
* @surface: a #GdkSurface
return surface->drawing_context;
}
-static void
-gdk_surface_clear_backing_region (GdkSurface *surface)
-{
- cairo_t *cr;
-
- if (GDK_SURFACE_DESTROYED (surface))
- return;
-
- cr = cairo_create (surface->current_paint.surface);
-
- cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
- gdk_cairo_region (cr, surface->current_paint.region);
- cairo_fill (cr);
-
- cairo_destroy (cr);
-}
-
/* This returns either the current working surface on the paint stack
* or the actual impl surface of the surface. This should not be used
* from very many places: be careful! */