gtk2/gdk/wayland/gdkmonitor-wayland.h
Olivier Fourdan 1f58e0ed6b wayland: Add support for xdg-output
Previously, the GDK backend for Wayland would deduce the logical size
of the monitors from the wl_output size and scale.

With the addition of fractional scaling which advertises a larger scale
value and then scale down the client surface, the computed logical size
of the monitors in GDK would be wrong and confuse applications which
insist on using the monitor size and position (like Firefox).

The xdg-output protocol aims at describing outputs in a way which is more
in line with the concept of an output on desktop oriented systems by
presenting the outputs using their logical size and position appropriately
transformed.

Add support for the optional xdg-output protocol so that the size and
position of the monitors as reported by GDK is correct even when using
fractional scaling.

Fixes: https://gitlab.gnome.org/GNOME/gtk/issues/1828
2019-04-16 16:14:43 +02:00

49 lines
1.3 KiB
C

/*
* Copyright © 2016 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GDK_WAYLAND_MONITOR_PRIVATE_H__
#define __GDK_WAYLAND_MONITOR_PRIVATE_H__
#include <glib.h>
#include "gdkwaylandmonitor.h"
#include "gdkmonitorprivate.h"
#include "gdkprivate-wayland.h"
struct _GdkWaylandMonitor {
GdkMonitor parent;
guint32 id;
guint32 version;
struct wl_output *output;
gboolean added;
struct zxdg_output_v1 *xdg_output;
/* Size and position, can be either from wl_output or xdg_output */
int32_t x;
int32_t y;
int32_t width;
int32_t height;
gboolean wl_output_done;
gboolean xdg_output_done;
};
struct _GdkWaylandMonitorClass {
GdkMonitorClass parent_class;
};
#endif