mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-16 05:30:28 +00:00
562 lines
19 KiB
C
562 lines
19 KiB
C
/* GDK - The GIMP Drawing Kit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
|
|
* file for a list of people on the GTK+ Team. See the ChangeLog
|
|
* files for a list of changes. These files are distributed with
|
|
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
|
*/
|
|
|
|
/* Uninstalled header defining types and functions internal to GDK */
|
|
|
|
#ifndef __GDK_INTERNALS_H__
|
|
#define __GDK_INTERNALS_H__
|
|
|
|
#include <gio/gio.h>
|
|
#include "gdkwindowimpl.h"
|
|
#include "gdkdisplay.h"
|
|
#include "gdkprivate.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**********************
|
|
* General Facilities *
|
|
**********************/
|
|
|
|
/* Debugging support */
|
|
|
|
typedef struct _GdkColorInfo GdkColorInfo;
|
|
typedef struct _GdkEventFilter GdkEventFilter;
|
|
typedef struct _GdkClientFilter GdkClientFilter;
|
|
|
|
typedef enum {
|
|
GDK_COLOR_WRITEABLE = 1 << 0
|
|
} GdkColorInfoFlags;
|
|
|
|
struct _GdkColorInfo
|
|
{
|
|
GdkColorInfoFlags flags;
|
|
guint ref_count;
|
|
};
|
|
|
|
typedef enum {
|
|
GDK_EVENT_FILTER_REMOVED = 1 << 0
|
|
} GdkEventFilterFlags;
|
|
|
|
struct _GdkEventFilter {
|
|
GdkFilterFunc function;
|
|
gpointer data;
|
|
GdkEventFilterFlags flags;
|
|
guint ref_count;
|
|
};
|
|
|
|
struct _GdkClientFilter {
|
|
GdkAtom type;
|
|
GdkFilterFunc function;
|
|
gpointer data;
|
|
};
|
|
|
|
typedef enum {
|
|
GDK_DEBUG_MISC = 1 << 0,
|
|
GDK_DEBUG_EVENTS = 1 << 1,
|
|
GDK_DEBUG_DND = 1 << 2,
|
|
GDK_DEBUG_XIM = 1 << 3,
|
|
GDK_DEBUG_NOGRABS = 1 << 4,
|
|
GDK_DEBUG_INPUT = 1 << 5,
|
|
GDK_DEBUG_CURSOR = 1 << 6,
|
|
GDK_DEBUG_MULTIHEAD = 1 << 7,
|
|
GDK_DEBUG_XINERAMA = 1 << 8,
|
|
GDK_DEBUG_DRAW = 1 << 9,
|
|
GDK_DEBUG_EVENTLOOP = 1 << 10,
|
|
GDK_DEBUG_FRAMES = 1 << 11,
|
|
GDK_DEBUG_SETTINGS = 1 << 12,
|
|
GDK_DEBUG_OPENGL = 1 << 13,
|
|
} GdkDebugFlag;
|
|
|
|
typedef enum {
|
|
GDK_RENDERING_MODE_SIMILAR = 0,
|
|
GDK_RENDERING_MODE_IMAGE,
|
|
GDK_RENDERING_MODE_RECORDING
|
|
} GdkRenderingMode;
|
|
|
|
typedef enum {
|
|
GDK_GL_DISABLE = 1 << 0,
|
|
GDK_GL_ALWAYS = 1 << 1,
|
|
GDK_GL_SOFTWARE_DRAW_GL = 1 << 2,
|
|
GDK_GL_SOFTWARE_DRAW_SURFACE = 1 << 3,
|
|
GDK_GL_TEXTURE_RECTANGLE = 1 << 4,
|
|
GDK_GL_LEGACY = 1 << 5,
|
|
GDK_GL_GLES = 1 << 6
|
|
} GdkGLFlags;
|
|
|
|
extern GList *_gdk_default_filters;
|
|
extern GdkWindow *_gdk_parent_root;
|
|
|
|
extern guint _gdk_debug_flags;
|
|
extern guint _gdk_gl_flags;
|
|
extern GdkRenderingMode _gdk_rendering_mode;
|
|
extern gboolean _gdk_debug_updates;
|
|
|
|
#ifdef G_ENABLE_DEBUG
|
|
|
|
#define GDK_DEBUG_CHECK(type) G_UNLIKELY (_gdk_debug_flags & GDK_DEBUG_##type)
|
|
|
|
#define GDK_NOTE(type,action) G_STMT_START { \
|
|
if (GDK_DEBUG_CHECK (type)) \
|
|
{ action; }; } G_STMT_END
|
|
|
|
#else /* !G_ENABLE_DEBUG */
|
|
|
|
#define GDK_DEBUG_CHECK(type) 0
|
|
#define GDK_NOTE(type,action)
|
|
|
|
#endif /* G_ENABLE_DEBUG */
|
|
|
|
/* Arg parsing */
|
|
|
|
typedef enum
|
|
{
|
|
GDK_ARG_STRING,
|
|
GDK_ARG_INT,
|
|
GDK_ARG_BOOL,
|
|
GDK_ARG_NOBOOL,
|
|
GDK_ARG_CALLBACK
|
|
} GdkArgType;
|
|
|
|
typedef struct _GdkArgContext GdkArgContext;
|
|
typedef struct _GdkArgDesc GdkArgDesc;
|
|
|
|
typedef void (*GdkArgFunc) (const char *name, const char *arg, gpointer data);
|
|
|
|
struct _GdkArgContext
|
|
{
|
|
GPtrArray *tables;
|
|
gpointer cb_data;
|
|
};
|
|
|
|
struct _GdkArgDesc
|
|
{
|
|
const char *name;
|
|
GdkArgType type;
|
|
gpointer location;
|
|
GdkArgFunc callback;
|
|
};
|
|
|
|
/* Event handling */
|
|
|
|
typedef struct _GdkEventPrivate GdkEventPrivate;
|
|
|
|
typedef enum
|
|
{
|
|
/* Following flag is set for events on the event queue during
|
|
* translation and cleared afterwards.
|
|
*/
|
|
GDK_EVENT_PENDING = 1 << 0,
|
|
|
|
/* The following flag is set for:
|
|
* 1) touch events emulating pointer events
|
|
* 2) pointer events being emulated by a touch sequence.
|
|
*/
|
|
GDK_EVENT_POINTER_EMULATED = 1 << 1,
|
|
|
|
/* When we are ready to draw a frame, we pause event delivery,
|
|
* mark all events in the queue with this flag, and deliver
|
|
* only those events until we finish the frame.
|
|
*/
|
|
GDK_EVENT_FLUSHED = 1 << 2
|
|
} GdkEventFlags;
|
|
|
|
struct _GdkEventPrivate
|
|
{
|
|
GdkEvent event;
|
|
guint flags;
|
|
GdkScreen *screen;
|
|
gpointer windowing_data;
|
|
GdkDevice *device;
|
|
GdkDevice *source_device;
|
|
GdkSeat *seat;
|
|
GdkDeviceTool *tool;
|
|
guint16 key_scancode;
|
|
};
|
|
|
|
typedef struct _GdkWindowPaint GdkWindowPaint;
|
|
|
|
struct _GdkWindow
|
|
{
|
|
GObject parent_instance;
|
|
|
|
GdkWindowImpl *impl; /* window-system-specific delegate object */
|
|
|
|
GdkWindow *parent;
|
|
GdkWindow *transient_for;
|
|
GdkVisual *visual;
|
|
|
|
gpointer user_data;
|
|
|
|
gint x;
|
|
gint y;
|
|
|
|
GdkEventMask event_mask;
|
|
guint8 window_type;
|
|
|
|
guint8 depth;
|
|
guint8 resize_count;
|
|
|
|
gint8 toplevel_window_type;
|
|
|
|
GList *filters;
|
|
GList *children;
|
|
GList children_list_node;
|
|
GList *native_children;
|
|
|
|
|
|
cairo_pattern_t *background;
|
|
|
|
/* The paint logic here is a bit complex because of our intermingling of
|
|
* cairo and GL. Let's first go over the cairo-alone case:
|
|
*
|
|
* 1) gdk_window_begin_paint_region() is called with an update region. If
|
|
* the backend wants it, we redirect drawing to a temporary surface
|
|
* sized the same as the update region and set `surface_needs_composite`
|
|
* to TRUE. Otherwise, we paint directly onto the real server-side window.
|
|
*
|
|
* 2) Things paint with cairo using gdk_cairo_create().
|
|
*
|
|
* 3) When everything is painted, the user calls gdk_window_end_paint().
|
|
* If there was a temporary surface, this is composited back onto the
|
|
* real backing surface in the appropriate places.
|
|
*
|
|
* This is similar to double buffering, except we only have partial surfaces
|
|
* of undefined contents, and instead of swapping between two buffers, we
|
|
* create a new temporary buffer every time.
|
|
*
|
|
* When we add GL to the mix, we have this instead:
|
|
*
|
|
* 1) gdk_window_begin_paint_region() is called with an update region like
|
|
* before. We always redirect cairo drawing to a temporary surface when
|
|
* GL is enabled.
|
|
*
|
|
* 2) Things paint with cairo using gdk_cairo_create(). Whenever
|
|
* something paints, it calls gdk_window_mark_paint_from_clip() to mark
|
|
* which regions it has painted in software. We'll learn what this does
|
|
* soon.
|
|
*
|
|
* 3) Something paints with GL and uses gdk_cairo_draw_from_gl() to
|
|
* composite back into the scene. We paint this onto the backing
|
|
* store for the window *immediately* by using GL, rather than
|
|
* painting to the temporary surface, and keep track of the area that
|
|
* we've painted in `flushed_region`.
|
|
*
|
|
* 4) Something paints using software again. It calls
|
|
* gdk_window_mark_paint_from_clip(), which subtracts the region it
|
|
* has painted from `flushed_region` and adds the region to
|
|
* `needs_blended_region`.
|
|
*
|
|
* 5) Something paints using GL again, using gdk_cairo_draw_from_gl().
|
|
* It paints directly to the backing store, removes the region it
|
|
* painted from `needs_blended_region`, and adds to `flushed_region`.
|
|
*
|
|
* 6) gdk_window_end_paint() is called. It composites the temporary surface
|
|
* back to the window, using GL, except it doesn't bother copying
|
|
* `flushed_region`, and when it paints `needs_blended_region`, it also
|
|
* turns on GL blending.
|
|
*
|
|
* That means that at any point in time, we have three regions:
|
|
*
|
|
* * `region` - This is the original invalidated region and is never
|
|
* touched.
|
|
*
|
|
* * `flushed_region` - This is the portion of `region` that has GL
|
|
* contents that have been painted directly to the window, and
|
|
* doesn't have any cairo drawing painted over it.
|
|
*
|
|
* * `needs_blended_region` - This is the portion of `region` that
|
|
* GL contents that have part cairo drawing painted over it.
|
|
* gdk_window_end_paint() will draw this region using blending.
|
|
*
|
|
* `flushed_region` and `needs_blended_region` never intersect, and the
|
|
* rest of `region` that isn't covered by either is the "opaque region",
|
|
* which is any area of cairo drawing that didn't ever intersect with GL.
|
|
* We can paint these from GL without turning on blending.
|
|
**/
|
|
|
|
struct {
|
|
/* The temporary surface that we're painting to. This will be composited
|
|
* back into the window when we call end_paint. This is our poor-man's
|
|
* way of doing double buffering. */
|
|
cairo_surface_t *surface;
|
|
|
|
cairo_region_t *region;
|
|
cairo_region_t *flushed_region;
|
|
cairo_region_t *need_blend_region;
|
|
|
|
gboolean surface_needs_composite;
|
|
gboolean use_gl;
|
|
} current_paint;
|
|
GdkGLContext *gl_paint_context;
|
|
|
|
cairo_region_t *update_area;
|
|
guint update_freeze_count;
|
|
/* This is the update_area that was in effect when the current expose
|
|
started. It may be smaller than the expose area if we'e painting
|
|
more than we have to, but it represents the "true" damage. */
|
|
cairo_region_t *active_update_area;
|
|
/* We store the old expose areas to support buffer-age optimizations */
|
|
cairo_region_t *old_updated_area[2];
|
|
|
|
GdkWindowState old_state;
|
|
GdkWindowState state;
|
|
|
|
guint8 alpha;
|
|
guint8 fullscreen_mode;
|
|
|
|
guint input_only : 1;
|
|
guint pass_through : 1;
|
|
guint modal_hint : 1;
|
|
guint composited : 1;
|
|
guint has_alpha_background : 1;
|
|
|
|
guint destroyed : 2;
|
|
|
|
guint accept_focus : 1;
|
|
guint focus_on_map : 1;
|
|
guint shaped : 1;
|
|
guint support_multidevice : 1;
|
|
guint synthesize_crossing_event_queued : 1;
|
|
guint effective_visibility : 2;
|
|
guint visibility : 2; /* The visibility wrt the toplevel (i.e. based on clip_region) */
|
|
guint native_visibility : 2; /* the native visibility of a impl windows */
|
|
guint viewable : 1; /* mapped and all parents mapped */
|
|
guint applied_shape : 1;
|
|
guint in_update : 1;
|
|
guint geometry_dirty : 1;
|
|
guint event_compression : 1;
|
|
guint frame_clock_events_paused : 1;
|
|
|
|
/* The GdkWindow that has the impl, ref:ed if another window.
|
|
* This ref is required to keep the wrapper of the impl window alive
|
|
* for as long as any GdkWindow references the impl. */
|
|
GdkWindow *impl_window;
|
|
|
|
guint update_and_descendants_freeze_count;
|
|
|
|
gint abs_x, abs_y; /* Absolute offset in impl */
|
|
gint width, height;
|
|
gint shadow_top;
|
|
gint shadow_left;
|
|
gint shadow_right;
|
|
gint shadow_bottom;
|
|
|
|
guint num_offscreen_children;
|
|
|
|
/* The clip region is the part of the window, in window coordinates
|
|
that is fully or partially (i.e. semi transparently) visible in
|
|
the window hierarchy from the toplevel and down */
|
|
cairo_region_t *clip_region;
|
|
|
|
GdkCursor *cursor;
|
|
GHashTable *device_cursor;
|
|
|
|
cairo_region_t *shape;
|
|
cairo_region_t *input_shape;
|
|
|
|
GList *devices_inside;
|
|
GHashTable *device_events;
|
|
|
|
GHashTable *source_event_masks;
|
|
gulong device_added_handler_id;
|
|
gulong device_changed_handler_id;
|
|
|
|
GdkFrameClock *frame_clock; /* NULL to use from parent or default */
|
|
GdkWindowInvalidateHandlerFunc invalidate_handler;
|
|
|
|
GdkDrawingContext *drawing_context;
|
|
};
|
|
|
|
#define GDK_WINDOW_TYPE(d) ((((GdkWindow *)(d)))->window_type)
|
|
#define GDK_WINDOW_DESTROYED(d) (((GdkWindow *)(d))->destroyed)
|
|
|
|
extern gchar *_gdk_display_name;
|
|
extern gint _gdk_screen_number;
|
|
extern gchar *_gdk_display_arg_name;
|
|
extern gboolean _gdk_disable_multidevice;
|
|
|
|
GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
|
|
|
|
void _gdk_event_filter_unref (GdkWindow *window,
|
|
GdkEventFilter *filter);
|
|
|
|
void gdk_event_set_pointer_emulated (GdkEvent *event,
|
|
gboolean emulated);
|
|
|
|
void gdk_event_set_scancode (GdkEvent *event,
|
|
guint16 scancode);
|
|
|
|
void gdk_event_set_seat (GdkEvent *event,
|
|
GdkSeat *seat);
|
|
|
|
void _gdk_event_emit (GdkEvent *event);
|
|
GList* _gdk_event_queue_find_first (GdkDisplay *display);
|
|
void _gdk_event_queue_remove_link (GdkDisplay *display,
|
|
GList *node);
|
|
GList* _gdk_event_queue_append (GdkDisplay *display,
|
|
GdkEvent *event);
|
|
GList* _gdk_event_queue_insert_after (GdkDisplay *display,
|
|
GdkEvent *after_event,
|
|
GdkEvent *event);
|
|
GList* _gdk_event_queue_insert_before(GdkDisplay *display,
|
|
GdkEvent *after_event,
|
|
GdkEvent *event);
|
|
|
|
void _gdk_event_queue_handle_motion_compression (GdkDisplay *display);
|
|
void _gdk_event_queue_flush (GdkDisplay *display);
|
|
|
|
void _gdk_event_button_generate (GdkDisplay *display,
|
|
GdkEvent *event);
|
|
|
|
void _gdk_windowing_event_data_copy (const GdkEvent *src,
|
|
GdkEvent *dst);
|
|
void _gdk_windowing_event_data_free (GdkEvent *event);
|
|
|
|
void _gdk_set_window_state (GdkWindow *window,
|
|
GdkWindowState new_state);
|
|
|
|
gboolean _gdk_cairo_surface_extents (cairo_surface_t *surface,
|
|
GdkRectangle *extents);
|
|
void gdk_gl_texture_from_surface (cairo_surface_t *surface,
|
|
cairo_region_t *region);
|
|
|
|
typedef struct {
|
|
float x1, y1, x2, y2;
|
|
float u1, v1, u2, v2;
|
|
} GdkTexturedQuad;
|
|
|
|
void gdk_gl_texture_quads (GdkGLContext *paint_context,
|
|
guint texture_target,
|
|
int n_quads,
|
|
GdkTexturedQuad *quads,
|
|
gboolean flip_colors);
|
|
|
|
void gdk_cairo_surface_mark_as_direct (cairo_surface_t *surface,
|
|
GdkWindow *window);
|
|
cairo_region_t *gdk_cairo_region_from_clip (cairo_t *cr);
|
|
|
|
void gdk_cairo_set_drawing_context (cairo_t *cr,
|
|
GdkDrawingContext *context);
|
|
|
|
/*************************************
|
|
* Interfaces used by windowing code *
|
|
*************************************/
|
|
|
|
cairo_surface_t *
|
|
_gdk_window_ref_cairo_surface (GdkWindow *window);
|
|
|
|
void _gdk_window_destroy (GdkWindow *window,
|
|
gboolean foreign_destroy);
|
|
void _gdk_window_clear_update_area (GdkWindow *window);
|
|
void _gdk_window_update_size (GdkWindow *window);
|
|
gboolean _gdk_window_update_viewable (GdkWindow *window);
|
|
GdkGLContext * gdk_window_get_paint_gl_context (GdkWindow *window,
|
|
GError **error);
|
|
void gdk_window_get_unscaled_size (GdkWindow *window,
|
|
int *unscaled_width,
|
|
int *unscaled_height);
|
|
|
|
GdkDrawingContext *gdk_window_get_drawing_context (GdkWindow *window);
|
|
|
|
cairo_region_t *gdk_window_get_current_paint_region (GdkWindow *window);
|
|
|
|
void _gdk_window_process_updates_recurse (GdkWindow *window,
|
|
cairo_region_t *expose_region);
|
|
|
|
void _gdk_screen_set_resolution (GdkScreen *screen,
|
|
gdouble dpi);
|
|
void _gdk_screen_close (GdkScreen *screen);
|
|
|
|
/*****************************************
|
|
* Interfaces provided by windowing code *
|
|
*****************************************/
|
|
|
|
/* Font/string functions implemented in module-specific code */
|
|
|
|
void _gdk_cursor_destroy (GdkCursor *cursor);
|
|
|
|
extern const GOptionEntry _gdk_windowing_args[];
|
|
|
|
void _gdk_windowing_got_event (GdkDisplay *display,
|
|
GList *event_link,
|
|
GdkEvent *event,
|
|
gulong serial);
|
|
|
|
#define GDK_WINDOW_IS_MAPPED(window) (((window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
|
|
|
|
void _gdk_window_invalidate_for_expose (GdkWindow *window,
|
|
cairo_region_t *region);
|
|
|
|
GdkWindow * _gdk_window_find_child_at (GdkWindow *window,
|
|
double x, double y);
|
|
GdkWindow * _gdk_window_find_descendant_at (GdkWindow *toplevel,
|
|
double x, double y,
|
|
double *found_x,
|
|
double *found_y);
|
|
|
|
GdkEvent * _gdk_make_event (GdkWindow *window,
|
|
GdkEventType type,
|
|
GdkEvent *event_in_queue,
|
|
gboolean before_event);
|
|
gboolean _gdk_window_event_parent_of (GdkWindow *parent,
|
|
GdkWindow *child);
|
|
|
|
void _gdk_synthesize_crossing_events (GdkDisplay *display,
|
|
GdkWindow *src,
|
|
GdkWindow *dest,
|
|
GdkDevice *device,
|
|
GdkDevice *source_device,
|
|
GdkCrossingMode mode,
|
|
gdouble toplevel_x,
|
|
gdouble toplevel_y,
|
|
GdkModifierType mask,
|
|
guint32 time_,
|
|
GdkEvent *event_in_queue,
|
|
gulong serial,
|
|
gboolean non_linear);
|
|
void _gdk_display_set_window_under_pointer (GdkDisplay *display,
|
|
GdkDevice *device,
|
|
GdkWindow *window);
|
|
|
|
|
|
void _gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window);
|
|
|
|
gboolean _gdk_window_has_impl (GdkWindow *window);
|
|
GdkWindow * _gdk_window_get_impl_window (GdkWindow *window);
|
|
|
|
/*****************************
|
|
* offscreen window routines *
|
|
*****************************/
|
|
GType gdk_offscreen_window_get_type (void);
|
|
void _gdk_offscreen_window_new (GdkWindow *window,
|
|
GdkWindowAttr *attributes,
|
|
gint attributes_mask);
|
|
cairo_surface_t * _gdk_offscreen_window_create_surface (GdkWindow *window,
|
|
gint width,
|
|
gint height);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GDK_INTERNALS_H__ */
|