gtk/gdk/gdktoplevelsize.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

63 lines
2.4 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2020 Red Hat
*
* 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/>.
*
*/
#ifndef __GDK_TOPLEVEL_SIZE_H__
#define __GDK_TOPLEVEL_SIZE_H__
#if !defined(__GDK_H_INSIDE__) && !defined(GTK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif
#include <gdk/gdktypes.h>
#include <gdk/gdkversionmacros.h>
G_BEGIN_DECLS
/**
* GdkTopLevelSize:
*
* Struct containing information for computing the size of a #GdkToplevel.
*/
typedef struct _GdkToplevelSize GdkToplevelSize;
#define GDK_TYPE_TOPLEVEL_SIZE (gdk_toplevel_size_get_type ())
GDK_AVAILABLE_IN_ALL
GType gdk_toplevel_size_get_type (void);
void gdk_toplevel_size_get_bounds (GdkToplevelSize *size,
int *bounds_width,
int *bounds_height);
GDK_AVAILABLE_IN_ALL
void gdk_toplevel_size_set_size (GdkToplevelSize *size,
int width,
int height);
GDK_AVAILABLE_IN_ALL
void gdk_toplevel_size_set_min_size (GdkToplevelSize *size,
int min_width,
int min_height);
GDK_AVAILABLE_IN_ALL
void gdk_toplevel_size_set_max_size (GdkToplevelSize *size,
int max_width,
int max_height);
G_END_DECLS
#endif /* __GDK_TOPLEVEL_SIZE_H__ */