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gdk: Add private subsurface api

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Add api to allow creating subsurfaces, and attaching textures
to them. This is just the api, there is no implementation yet.
This commit is contained in:
Matthias Clasen
2023-10-27 21:46:40 -04:00
parent f50edb6910
commit 5fa7457171
2 changed files with 79 additions and 0 deletions
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44
gdk/gdksurface.c
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@@ -493,6 +493,12 @@ gdk_surface_real_get_scale (GdkSurface *surface)
return 1.0;
}
static GdkSubsurface *
gdk_surface_real_create_subsurface (GdkSurface *surface)
{
return NULL;
}
static void
gdk_surface_constructed (GObject *object)
{
@@ -515,6 +521,7 @@ gdk_surface_class_init (GdkSurfaceClass *klass)
klass->beep = gdk_surface_real_beep;
klass->get_scale = gdk_surface_real_get_scale;
klass->create_subsurface = gdk_surface_real_create_subsurface;
/**
* GdkSurface:cursor: (attributes org.gtk.Property.get=gdk_surface_get_cursor org.gtk.Property.set=gdk_surface_set_cursor)
@@ -3054,3 +3061,40 @@ gdk_surface_leave_monitor (GdkSurface *surface,
{
g_signal_emit (surface, signals[LEAVE_MONITOR], 0, monitor);
}
GdkSubsurface *
gdk_surface_create_subsurface (GdkSurface *surface)
{
return GDK_SURFACE_GET_CLASS (surface)->create_subsurface (surface);
}
void
gdk_subsurface_destroy (GdkSubsurface *subsurface)
{
subsurface->class->destroy (subsurface);
}
void
gdk_subsurface_attach (GdkSubsurface *subsurface,
GdkTexture *texture,
const graphene_rect_t *bounds)
{
subsurface->class->attach (subsurface, texture, bounds);
}
/* If sibling is NULL, place the subsurface above its parent */
void
gdk_subsurface_place_above (GdkSubsurface *subsurface,
GdkSubsurface *sibling)
{
subsurface->class->place_above (subsurface, sibling);
}
/* If sibling is NULL, place the subsurface below its parent */
void
gdk_subsurface_place_below (GdkSubsurface *subsurface,
GdkSubsurface *sibling)
{
subsurface->class->place_below (subsurface, sibling);
}

35
gdk/gdksurfaceprivate.h
View File

@@ -23,9 +23,14 @@
#include "gdkenumtypes.h"
#include "gdksurface.h"
#include "gdktoplevel.h"
#include <graphene.h>
G_BEGIN_DECLS
typedef struct _GdkSubsurface GdkSubsurface;
typedef struct _GskRenderNode GskRenderNode;
struct _GdkSurface
{
GObject parent_instance;
@@ -146,6 +151,9 @@ struct _GdkSurfaceClass
cairo_region_t *region);
void (* request_layout) (GdkSurface *surface);
gboolean (* compute_size) (GdkSurface *surface);
GdkSubsurface *
(* create_subsurface) (GdkSurface *surface);
};
#define GDK_SURFACE_DESTROYED(d) (((GdkSurface *)(d))->destroyed)
@@ -334,7 +342,34 @@ void gdk_surface_request_motion (GdkSurface *surface);
gboolean gdk_surface_supports_edge_constraints (GdkSurface *surface);
GdkSubsurface * gdk_surface_create_subsurface (GdkSurface *surface);
typedef struct _GdkSubsurfaceClass GdkSubsurfaceClass;
struct _GdkSubsurfaceClass
{
void (* destroy) (GdkSubsurface *subsurface);
void (* attach) (GdkSubsurface *subsurface,
GdkTexture *texture,
const graphene_rect_t *bounds);
void (* place_above) (GdkSubsurface *subsurface,
GdkSubsurface *sibling);
void (* place_below) (GdkSubsurface *subsurface,
GdkSubsurface *sibling);
};
struct _GdkSubsurface
{
const GdkSubsurfaceClass *class;
};
void gdk_subsurface_destroy (GdkSubsurface *subsurface);
void gdk_subsurface_attach (GdkSubsurface *subsurface,
GdkTexture *texture,
const graphene_rect_t *bounds);
void gdk_subsurface_place_above (GdkSubsurface *subsurface,
GdkSubsurface *sibling);
void gdk_subsurface_place_below (GdkSubsurface *subsurface,
GdkSubsurface *sibling);
G_END_DECLS