gtk2/gdk/gdkinternals.h
Owen Taylor 3d737ee8ba Add GdkPangoRenderer, a subclass of PangoRenderer targeting GDK drawables.
Sat Nov 20 15:13:51 2004  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdkpango.[ch]: Add GdkPangoRenderer, a subclass of
	PangoRenderer targeting GDK drawables. Use to implement the old
	gdk_draw_layout() and friends.

	* gdk/gdkdraw.c gdk/gdkdrawable.h gdk/gdkwindow.c gdk/gdkpixmap.c:
	Add gdk_draw_glyphs_transformed() gdk_draw_trapezoids() and
	the corresponding members of GdkDrawableClass. Add a fallback
	implementation of gdk_draw_trapezoids() in terms of pixbufs.

	* gdk/gdkwindowing.h gdk/x11/gdkg-x11.h: Add
	_gdk_windowing_gc_get_foreground() to enable the fallback
	trapezoid implementation.

	* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkdisplay-x11.h: Implement
	draw_glyph_transformed,	draw_trapezoids.

	* gdk/x11/gdkdrawable-x11.[ch]: Add
	_gdk_x11_drawable_draw_xtrapezoids, _gdk_x11_drawable_draw_xft_glyphs
	for use of GdkX11Renderer.

	* gdk/x11/gdkgc-x11.c gdk/x11/gdkprivate-x11.h: Implement
	GDK_TILED, GDK_STIPPLED, GDK_OPAQUE_STIPPLED in the RENDER codepath.

	* gdk/gdkpango-x11.c: Add GdkX11Renderer... a subclass of
	PangoXftRenderer that does tiles/stipples and fallback rendering
	of trapezoids without the RENDER extension.

	* gdk/gdkpango-x11.c gdk/x11/gdkscreen-x11.[ch] _gdk_x11_renderer_get:
	Add _gdk_x11_renderer_get() to get a singleton GdkX11Renderer
	for the screen.

	* gdk/x11/gdkdrawable-x11.c (get_impl_drawable): Fix a None/NULL
	confusion.

	* gtk/gtklabel.[ch] gtk/gtk.symbols: Add gtk_label_set/get_angle(),
	and an ::angle property.

	* gtk/gtklabel.c: Remove #if 0'd dead code gtk_label_paint_word().

	* gtk/gtktextdisplay.c: Switch to using a GtkTextRenderer subclass
	of GdkPangoRenderer for drawing.

	* gtk/gtktextlayout.[ch] gtk/gtktextdisplay.c: Switch to using
	gtk_attr_shape_new_with_data() to store backreferences to
	embedded pixmaps and widgets. Leave line_display->shaped_objects
	around for backwords compatibility.

	* gdk/gdkpango.[ch] (gdk_pango_context_set_colormap): Describe
	as deprecated, remove implementation.

	* gtk/gtkwidget.c (gtk_widget_create_pango_context): Remove
	call to gdk_pango_context_set_colormap.

	* demos/gtk-demo/Makefile.am demos/gtk-demo/rotated_text.c: Add
	a demo showing drawing rotated text.

	* tests/testgtk.c: Add a rotated-label test, and also a rotated
	drawing test (differs from demos/gtk-demo/rotated_text by also
	using a tile)
2004-11-21 16:24:01 +00:00

340 lines
10 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* 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 */
#include <gdk/gdktypes.h>
#include <gdk/gdkwindow.h>
#include <gdk/gdkprivate.h>
#ifndef __GDK_INTERNALS_H__
#define __GDK_INTERNALS_H__
/**********************
* 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;
};
struct _GdkEventFilter {
GdkFilterFunc function;
gpointer data;
};
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_COLORMAP = 1 << 5,
GDK_DEBUG_GDKRGB = 1 << 6,
GDK_DEBUG_GC = 1 << 7,
GDK_DEBUG_PIXMAP = 1 << 8,
GDK_DEBUG_IMAGE = 1 << 9,
GDK_DEBUG_INPUT = 1 <<10,
GDK_DEBUG_CURSOR = 1 <<11,
GDK_DEBUG_MULTIHEAD = 1 <<12,
GDK_DEBUG_XINERAMA = 1 <<13
} GdkDebugFlag;
#ifndef GDK_DISABLE_DEPRECATED
typedef struct _GdkFontPrivate GdkFontPrivate;
struct _GdkFontPrivate
{
GdkFont font;
guint ref_count;
};
#endif /* GDK_DISABLE_DEPRECATED */
extern GList *_gdk_default_filters;
extern GdkWindow *_gdk_parent_root;
extern gint _gdk_error_code;
extern gint _gdk_error_warnings;
extern guint _gdk_debug_flags;
#ifdef G_ENABLE_DEBUG
#define GDK_NOTE(type,action) G_STMT_START { \
if (_gdk_debug_flags & GDK_DEBUG_##type) \
{ action; }; } G_STMT_END
#else /* !G_ENABLE_DEBUG */
#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
} GdkEventFlags;
struct _GdkEventPrivate
{
GdkEvent event;
guint flags;
GdkScreen *screen;
};
extern GdkEventFunc _gdk_event_func; /* Callback for events */
extern gpointer _gdk_event_data;
extern GDestroyNotify _gdk_event_notify;
extern GSList *_gdk_displays;
extern gchar *_gdk_display_name;
extern gint _gdk_screen_number;
extern gchar *_gdk_display_arg_name;
void _gdk_events_queue (GdkDisplay *display);
GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
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);
void _gdk_event_button_generate (GdkDisplay *display,
GdkEvent *event);
void gdk_synthesize_window_state (GdkWindow *window,
GdkWindowState unset_flags,
GdkWindowState set_flags);
#define GDK_SCRATCH_IMAGE_WIDTH 256
#define GDK_SCRATCH_IMAGE_HEIGHT 64
GdkImage* _gdk_image_new_for_depth (GdkScreen *screen,
GdkImageType type,
GdkVisual *visual,
gint width,
gint height,
gint depth);
GdkImage *_gdk_image_get_scratch (GdkScreen *screen,
gint width,
gint height,
gint depth,
gint *x,
gint *y);
GdkImage *_gdk_drawable_copy_to_image (GdkDrawable *drawable,
GdkImage *image,
gint src_x,
gint src_y,
gint dest_x,
gint dest_y,
gint width,
gint height);
/* GC caching */
GdkGC *_gdk_drawable_get_scratch_gc (GdkDrawable *drawable,
gboolean graphics_exposures);
/*************************************
* Interfaces used by windowing code *
*************************************/
void _gdk_window_destroy (GdkWindow *window,
gboolean foreign_destroy);
void _gdk_window_clear_update_area (GdkWindow *window);
void _gdk_screen_close (GdkScreen *screen);
const char *_gdk_get_sm_client_id (void);
/*****************************************
* Interfaces provided by windowing code *
*****************************************/
/* Font/string functions implemented in module-specific code */
gint _gdk_font_strlen (GdkFont *font, const char *str);
void _gdk_font_destroy (GdkFont *font);
void _gdk_colormap_real_destroy (GdkColormap *colormap);
void _gdk_cursor_destroy (GdkCursor *cursor);
void _gdk_windowing_init (void);
extern GOptionEntry _gdk_windowing_args[];
void _gdk_windowing_set_default_display (GdkDisplay *display);
gchar *_gdk_windowing_substitute_screen_number (const gchar *display_name,
gint screen_number);
void _gdk_windowing_window_get_offsets (GdkWindow *window,
gint *x_offset,
gint *y_offset);
void _gdk_windowing_window_clear_area (GdkWindow *window,
gint x,
gint y,
gint width,
gint height);
void _gdk_windowing_window_clear_area_e (GdkWindow *window,
gint x,
gint y,
gint width,
gint height);
void _gdk_windowing_get_pointer (GdkDisplay *display,
GdkScreen **screen,
gint *x,
gint *y,
GdkModifierType *mask);
GdkWindow* _gdk_windowing_window_get_pointer (GdkDisplay *display,
GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask);
GdkWindow* _gdk_windowing_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y);
/* Return the number of bits-per-pixel for images of the specified depth. */
gint _gdk_windowing_get_bits_for_depth (GdkDisplay *display,
gint depth);
#define GDK_WINDOW_IS_MAPPED(window) ((((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
/* Called before processing updates for a window. This gives the windowing
* layer a chance to save the region for later use in avoiding duplicate
* exposes. The return value indicates whether the function has a saved
* the region; if the result is TRUE, then the windowing layer is responsible
* for destroying the region later.
*/
gboolean _gdk_windowing_window_queue_antiexpose (GdkWindow *window,
GdkRegion *area);
/* Called to do the windowing system specific part of gdk_window_destroy(),
*
* window: The window being destroyed
* recursing: If TRUE, then this is being called because a parent
* was destroyed. This generally means that the call to the windowing system
* to destroy the window can be omitted, since it will be destroyed as a result
* of the parent being destroyed. Unless @foreign_destroy
*
* foreign_destroy: If TRUE, the window or a parent was destroyed by some external
* agency. The window has already been destroyed and no windowing
* system calls should be made. (This may never happen for some
* windowing systems.)
*/
void _gdk_windowing_window_destroy (GdkWindow *window,
gboolean recursing,
gboolean foreign_destroy);
/* Called when gdk_window_destroy() is called on a foreign window
* or an ancestor of the foreign window. It should generally reparent
* the window out of it's current heirarchy, hide it, and then
* send a message to the owner requesting that the window be destroyed.
*/
void _gdk_windowing_window_destroy_foreign (GdkWindow *window);
void _gdk_windowing_display_set_sm_client_id (GdkDisplay *display,
const gchar *sm_client_id);
/* Implementation types */
GType _gdk_window_impl_get_type (void) G_GNUC_CONST;
GType _gdk_pixmap_impl_get_type (void) G_GNUC_CONST;
/* Queries the current foreground color of a GdkGC */
void _gdk_windowing_gc_get_foreground (GdkGC *gc,
GdkColor *color);
/************************************
* Initialization and exit routines *
************************************/
void _gdk_image_exit (void);
void _gdk_windowing_exit (void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GDK_INTERNALS_H__ */