gtk/gdk/gdksurface.h
Matthias Clasen 3a4e647b2d surface: Drop redundant toplevel api
The toplevel functionality to keep is moving to
GdkToplevel, and unused functions can go.
2020-03-12 14:56:21 -04:00

487 lines
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/* 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/.
*/
#ifndef __GDK_SURFACE_H__
#define __GDK_SURFACE_H__
#if !defined (__GDK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif
#include <gdk/gdkversionmacros.h>
#include <gdk/gdktypes.h>
#include <gdk/gdkevents.h>
#include <gdk/gdkframeclock.h>
#include <gdk/gdkmonitor.h>
#include <gdk/gdkpopuplayout.h>
G_BEGIN_DECLS
/**
* GdkSurfaceType:
* @GDK_SURFACE_TOPLEVEL: toplevel window (used to implement #GtkWindow)
* @GDK_SURFACE_TEMP: override redirect temporary surface (used to implement #GtkMenu)
* @GDK_SURFACE_POPUP: popup window with semantics like xdg-popover
*
* Describes the kind of surface.
*/
typedef enum
{
GDK_SURFACE_TOPLEVEL,
GDK_SURFACE_TEMP,
GDK_SURFACE_POPUP
} GdkSurfaceType;
/* Size restriction enumeration.
*/
/**
* GdkSurfaceHints:
* @GDK_HINT_POS: indicates that the program has positioned the surface
* @GDK_HINT_MIN_SIZE: min size fields are set
* @GDK_HINT_MAX_SIZE: max size fields are set
* @GDK_HINT_BASE_SIZE: base size fields are set
* @GDK_HINT_ASPECT: aspect ratio fields are set
* @GDK_HINT_RESIZE_INC: resize increment fields are set
* @GDK_HINT_WIN_GRAVITY: surface gravity field is set
* @GDK_HINT_USER_POS: indicates that the surfaces position was explicitly set
* by the user
* @GDK_HINT_USER_SIZE: indicates that the surfaces size was explicitly set by
* the user
*
* Used to indicate which fields of a #GdkGeometry struct should be paid
* attention to. Also, the presence/absence of @GDK_HINT_POS,
* @GDK_HINT_USER_POS, and @GDK_HINT_USER_SIZE is significant, though they don't
* directly refer to #GdkGeometry fields. @GDK_HINT_USER_POS will be set
* automatically by #GtkWindow if you call gtk_window_move().
* @GDK_HINT_USER_POS and @GDK_HINT_USER_SIZE should be set if the user
* specified a size/position using a --geometry command-line argument;
* gtk_window_parse_geometry() automatically sets these flags.
*/
typedef enum
{
GDK_HINT_POS = 1 << 0,
GDK_HINT_MIN_SIZE = 1 << 1,
GDK_HINT_MAX_SIZE = 1 << 2,
GDK_HINT_BASE_SIZE = 1 << 3,
GDK_HINT_ASPECT = 1 << 4,
GDK_HINT_RESIZE_INC = 1 << 5,
GDK_HINT_WIN_GRAVITY = 1 << 6,
GDK_HINT_USER_POS = 1 << 7,
GDK_HINT_USER_SIZE = 1 << 8
} GdkSurfaceHints;
/* The next two enumeration values current match the
* Motif constants. If this is changed, the implementation
* of gdk_surface_set_decorations/gdk_surface_set_functions
* will need to change as well.
*/
/**
* GdkWMDecoration:
* @GDK_DECOR_ALL: all decorations should be applied.
* @GDK_DECOR_BORDER: a frame should be drawn around the surface.
* @GDK_DECOR_RESIZEH: the frame should have resize handles.
* @GDK_DECOR_TITLE: a titlebar should be placed above the surface.
* @GDK_DECOR_MENU: a button for opening a menu should be included.
* @GDK_DECOR_MINIMIZE: a minimize button should be included.
* @GDK_DECOR_MAXIMIZE: a maximize button should be included.
*
* These are hints originally defined by the Motif toolkit.
* The window manager can use them when determining how to decorate
* the surface. The hint must be set before mapping the surface.
*/
typedef enum
{
GDK_DECOR_ALL = 1 << 0,
GDK_DECOR_BORDER = 1 << 1,
GDK_DECOR_RESIZEH = 1 << 2,
GDK_DECOR_TITLE = 1 << 3,
GDK_DECOR_MENU = 1 << 4,
GDK_DECOR_MINIMIZE = 1 << 5,
GDK_DECOR_MAXIMIZE = 1 << 6
} GdkWMDecoration;
/**
* GdkWMFunction:
* @GDK_FUNC_ALL: all functions should be offered.
* @GDK_FUNC_RESIZE: the surface should be resizable.
* @GDK_FUNC_MOVE: the surface should be movable.
* @GDK_FUNC_MINIMIZE: the surface should be minimizable.
* @GDK_FUNC_MAXIMIZE: the surface should be maximizable.
* @GDK_FUNC_CLOSE: the surface should be closable.
*
* These are hints originally defined by the Motif toolkit. The window manager
* can use them when determining the functions to offer for the surface. The
* hint must be set before mapping the surface.
*/
typedef enum
{
GDK_FUNC_ALL = 1 << 0,
GDK_FUNC_RESIZE = 1 << 1,
GDK_FUNC_MOVE = 1 << 2,
GDK_FUNC_MINIMIZE = 1 << 3,
GDK_FUNC_MAXIMIZE = 1 << 4,
GDK_FUNC_CLOSE = 1 << 5
} GdkWMFunction;
/**
* GdkSurfaceEdge:
* @GDK_SURFACE_EDGE_NORTH_WEST: the top left corner.
* @GDK_SURFACE_EDGE_NORTH: the top edge.
* @GDK_SURFACE_EDGE_NORTH_EAST: the top right corner.
* @GDK_SURFACE_EDGE_WEST: the left edge.
* @GDK_SURFACE_EDGE_EAST: the right edge.
* @GDK_SURFACE_EDGE_SOUTH_WEST: the lower left corner.
* @GDK_SURFACE_EDGE_SOUTH: the lower edge.
* @GDK_SURFACE_EDGE_SOUTH_EAST: the lower right corner.
*
* Determines a surface edge or corner.
*/
typedef enum
{
GDK_SURFACE_EDGE_NORTH_WEST,
GDK_SURFACE_EDGE_NORTH,
GDK_SURFACE_EDGE_NORTH_EAST,
GDK_SURFACE_EDGE_WEST,
GDK_SURFACE_EDGE_EAST,
GDK_SURFACE_EDGE_SOUTH_WEST,
GDK_SURFACE_EDGE_SOUTH,
GDK_SURFACE_EDGE_SOUTH_EAST
} GdkSurfaceEdge;
/**
* GdkFullscreenMode:
* @GDK_FULLSCREEN_ON_CURRENT_MONITOR: Fullscreen on current monitor only.
* @GDK_FULLSCREEN_ON_ALL_MONITORS: Span across all monitors when fullscreen.
*
* Indicates which monitor (in a multi-head setup) a surface should span over
* when in fullscreen mode.
**/
typedef enum
{
GDK_FULLSCREEN_ON_CURRENT_MONITOR,
GDK_FULLSCREEN_ON_ALL_MONITORS
} GdkFullscreenMode;
/**
* GdkGeometry:
* @min_width: minimum width of surface (or -1 to use requisition, with
* #GtkWindow only)
* @min_height: minimum height of surface (or -1 to use requisition, with
* #GtkWindow only)
* @max_width: maximum width of surface (or -1 to use requisition, with
* #GtkWindow only)
* @max_height: maximum height of surface (or -1 to use requisition, with
* #GtkWindow only)
* @base_width: allowed surface widths are @base_width + @width_inc * N where N
* is any integer (-1 allowed with #GtkWindow)
* @base_height: allowed surface widths are @base_height + @height_inc * N where
* N is any integer (-1 allowed with #GtkWindow)
* @width_inc: width resize increment
* @height_inc: height resize increment
* @min_aspect: minimum width/height ratio
* @max_aspect: maximum width/height ratio
* @win_gravity: surface gravity, see gtk_window_set_gravity()
*
* The #GdkGeometry struct gives the window manager information about
* a surfaces geometry constraints. Normally you would set these on
* the GTK+ level using gtk_window_set_geometry_hints(). #GtkWindow
* then sets the hints on the #GdkSurface it creates.
*
* gdk_surface_set_geometry_hints() expects the hints to be fully valid already
* and simply passes them to the window manager; in contrast,
* gtk_window_set_geometry_hints() performs some interpretation. For example,
* #GtkWindow will apply the hints to the geometry widget instead of the
* toplevel window, if you set a geometry widget. Also, the
* @min_width/@min_height/@max_width/@max_height fields may be set to -1, and
* #GtkWindow will substitute the size request of the surface or geometry widget.
* If the minimum size hint is not provided, #GtkWindow will use its requisition
* as the minimum size. If the minimum size is provided and a geometry widget is
* set, #GtkWindow will take the minimum size as the minimum size of the
* geometry widget rather than the entire surface. The base size is treated
* similarly.
*
* The canonical use-case for gtk_window_set_geometry_hints() is to get a
* terminal widget to resize properly. Here, the terminal text area should be
* the geometry widget; #GtkWindow will then automatically set the base size to
* the size of other widgets in the terminal window, such as the menubar and
* scrollbar. Then, the @width_inc and @height_inc fields should be set to the
* size of one character in the terminal. Finally, the base size should be set
* to the size of one character. The net effect is that the minimum size of the
* terminal will have a 1x1 character terminal area, and only terminal sizes on
* the “character grid” will be allowed.
*
* Heres an example of how the terminal example would be implemented, assuming
* a terminal area widget called “terminal” and a toplevel window “toplevel”:
*
* |[<!-- language="C" -->
* GdkGeometry hints;
*
* hints.base_width = terminal->char_width;
* hints.base_height = terminal->char_height;
* hints.min_width = terminal->char_width;
* hints.min_height = terminal->char_height;
* hints.width_inc = terminal->char_width;
* hints.height_inc = terminal->char_height;
*
* gtk_window_set_geometry_hints (GTK_WINDOW (toplevel),
* GTK_WIDGET (terminal),
* &hints,
* GDK_HINT_RESIZE_INC |
* GDK_HINT_MIN_SIZE |
* GDK_HINT_BASE_SIZE);
* ]|
*
* The other useful fields are the @min_aspect and @max_aspect fields; these
* contain a width/height ratio as a floating point number. If a geometry widget
* is set, the aspect applies to the geometry widget rather than the entire
* window. The most common use of these hints is probably to set @min_aspect and
* @max_aspect to the same value, thus forcing the window to keep a constant
* aspect ratio.
*/
struct _GdkGeometry
{
gint min_width;
gint min_height;
gint max_width;
gint max_height;
gint base_width;
gint base_height;
gint width_inc;
gint height_inc;
gdouble min_aspect;
gdouble max_aspect;
GdkGravity win_gravity;
};
/**
* GdkSurfaceState:
* @GDK_SURFACE_STATE_WITHDRAWN: the surface is not shown
* @GDK_SURFACE_STATE_MINIMIZED: the surface is minimized
* @GDK_SURFACE_STATE_MAXIMIZED: the surface is maximized
* @GDK_SURFACE_STATE_STICKY: the surface is sticky
* @GDK_SURFACE_STATE_FULLSCREEN: the surface is maximized without decorations
* @GDK_SURFACE_STATE_ABOVE: the surface is kept above other surfaces
* @GDK_SURFACE_STATE_BELOW: the surface is kept below other surfaces
* @GDK_SURFACE_STATE_FOCUSED: the surface is presented as focused (with active decorations)
* @GDK_SURFACE_STATE_TILED: the surface is in a tiled state
* @GDK_SURFACE_STATE_TOP_TILED: whether the top edge is tiled
* @GDK_SURFACE_STATE_TOP_RESIZABLE: whether the top edge is resizable
* @GDK_SURFACE_STATE_RIGHT_TILED: whether the right edge is tiled
* @GDK_SURFACE_STATE_RIGHT_RESIZABLE: whether the right edge is resizable
* @GDK_SURFACE_STATE_BOTTOM_TILED: whether the bottom edge is tiled
* @GDK_SURFACE_STATE_BOTTOM_RESIZABLE: whether the bottom edge is resizable
* @GDK_SURFACE_STATE_LEFT_TILED: whether the left edge is tiled
* @GDK_SURFACE_STATE_LEFT_RESIZABLE: whether the left edge is resizable
*
* Specifies the state of a toplevel surface.
*
* On platforms that support information about individual edges, the %GDK_SURFACE_STATE_TILED
* state will be set whenever any of the individual tiled states is set. On platforms
* that lack that support, the tiled state will give an indication of tiledness without
* any of the per-edge states being set.
*/
typedef enum
{
GDK_SURFACE_STATE_WITHDRAWN = 1 << 0,
GDK_SURFACE_STATE_MINIMIZED = 1 << 1,
GDK_SURFACE_STATE_MAXIMIZED = 1 << 2,
GDK_SURFACE_STATE_STICKY = 1 << 3,
GDK_SURFACE_STATE_FULLSCREEN = 1 << 4,
GDK_SURFACE_STATE_ABOVE = 1 << 5,
GDK_SURFACE_STATE_BELOW = 1 << 6,
GDK_SURFACE_STATE_FOCUSED = 1 << 7,
GDK_SURFACE_STATE_TILED = 1 << 8,
GDK_SURFACE_STATE_TOP_TILED = 1 << 9,
GDK_SURFACE_STATE_TOP_RESIZABLE = 1 << 10,
GDK_SURFACE_STATE_RIGHT_TILED = 1 << 11,
GDK_SURFACE_STATE_RIGHT_RESIZABLE = 1 << 12,
GDK_SURFACE_STATE_BOTTOM_TILED = 1 << 13,
GDK_SURFACE_STATE_BOTTOM_RESIZABLE = 1 << 14,
GDK_SURFACE_STATE_LEFT_TILED = 1 << 15,
GDK_SURFACE_STATE_LEFT_RESIZABLE = 1 << 16
} GdkSurfaceState;
typedef struct _GdkSurfaceClass GdkSurfaceClass;
#define GDK_TYPE_SURFACE (gdk_surface_get_type ())
#define GDK_SURFACE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_SURFACE, GdkSurface))
#define GDK_SURFACE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_SURFACE, GdkSurfaceClass))
#define GDK_IS_SURFACE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_SURFACE))
#define GDK_IS_SURFACE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_SURFACE))
#define GDK_SURFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_SURFACE, GdkSurfaceClass))
GDK_AVAILABLE_IN_ALL
GType gdk_surface_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GdkSurface * gdk_surface_new_toplevel (GdkDisplay *display,
int width,
int height);
GDK_AVAILABLE_IN_ALL
GdkSurface * gdk_surface_new_popup (GdkSurface *parent,
gboolean autohide);
GDK_AVAILABLE_IN_ALL
void gdk_surface_destroy (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
GdkSurfaceType gdk_surface_get_surface_type (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
gboolean gdk_surface_is_destroyed (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
GdkDisplay * gdk_surface_get_display (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_show (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_hide (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_resize (GdkSurface *surface,
gint width,
gint height);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_input_region (GdkSurface *surface,
cairo_region_t *region);
GDK_AVAILABLE_IN_ALL
gboolean gdk_surface_is_viewable (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
gboolean gdk_surface_get_mapped (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_cursor (GdkSurface *surface,
GdkCursor *cursor);
GDK_AVAILABLE_IN_ALL
GdkCursor *gdk_surface_get_cursor (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_device_cursor (GdkSurface *surface,
GdkDevice *device,
GdkCursor *cursor);
GDK_AVAILABLE_IN_ALL
GdkCursor *gdk_surface_get_device_cursor (GdkSurface *surface,
GdkDevice *device);
GDK_AVAILABLE_IN_ALL
int gdk_surface_get_width (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
int gdk_surface_get_height (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
gboolean gdk_surface_translate_coordinates (GdkSurface *from,
GdkSurface *to,
double *x,
double *y);
GDK_AVAILABLE_IN_ALL
gint gdk_surface_get_scale_factor (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_get_device_position (GdkSurface *surface,
GdkDevice *device,
double *x,
double *y,
GdkModifierType *mask);
GDK_AVAILABLE_IN_ALL
cairo_surface_t *
gdk_surface_create_similar_surface (GdkSurface *surface,
cairo_content_t content,
int width,
int height);
GDK_AVAILABLE_IN_ALL
void gdk_surface_beep (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_opacity (GdkSurface *surface,
gdouble opacity);
GDK_AVAILABLE_IN_ALL
void gdk_surface_begin_resize_drag (GdkSurface *surface,
GdkSurfaceEdge edge,
GdkDevice *device,
gint button,
gint x,
gint y,
guint32 timestamp);
GDK_AVAILABLE_IN_ALL
void gdk_surface_begin_move_drag (GdkSurface *surface,
GdkDevice *device,
gint button,
gint x,
gint y,
guint32 timestamp);
GDK_AVAILABLE_IN_ALL
void gdk_surface_queue_expose (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_freeze_updates (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_thaw_updates (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_constrain_size (GdkGeometry *geometry,
GdkSurfaceHints flags,
gint width,
gint height,
gint *new_width,
gint *new_height);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_support_multidevice (GdkSurface *surface,
gboolean support_multidevice);
GDK_AVAILABLE_IN_ALL
gboolean gdk_surface_get_support_multidevice (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
GdkFrameClock* gdk_surface_get_frame_clock (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_opaque_region (GdkSurface *surface,
cairo_region_t *region);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_shadow_width (GdkSurface *surface,
gint left,
gint right,
gint top,
gint bottom);
GDK_AVAILABLE_IN_ALL
GdkCairoContext *gdk_surface_create_cairo_context(GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
GdkGLContext * gdk_surface_create_gl_context (GdkSurface *surface,
GError **error);
GDK_AVAILABLE_IN_ALL
GdkVulkanContext *
gdk_surface_create_vulkan_context(GdkSurface *surface,
GError **error);
G_DEFINE_AUTOPTR_CLEANUP_FUNC (GdkSurface, g_object_unref)
G_END_DECLS
#endif /* __GDK_SURFACE_H__ */