gtk/gdk/gdksurface.h
Jonas Ådahl 2ff74eb667 gdk/toplevel: Negotiate surface size via a compute-size signal
GTK will not up front know how to correctly calculate a size, since it
will not be able to reliably predict the constraints that may exist
where it will be mapped.

Thus, to handle this, calculate the size of the toplevel by having GDK
emitting a signal called 'compute-size' that will contain information
needed for computing a toplevel window size.

This signal may be emitted at any time, e.g. during
gdk_toplevel_present(), or spontaneously if constraints change.

This also drops the max size from the toplevel layout, while moving the
min size from the toplevel layout struct to the struct passed via the
signal,

This needs changes to a test case where we make sure we process
GDK_CONFIGURE etc, which means we also needs to show the window and
process all pending events in the test-focus-chain test case.
2020-08-05 15:49:00 +02:00

238 lines
9.6 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/.
*/
#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
/**
* 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;
/**
* 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);
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
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_hide (GdkSurface *surface);
GDK_AVAILABLE_IN_ALL
void gdk_surface_set_input_region (GdkSurface *surface,
cairo_region_t *region);
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
int 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_queue_render (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,
int left,
int right,
int top,
int 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__ */