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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2002 Hans Breuer
*
* 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/>.
*/
#include "config.h"
#define _WIN32_WINNT 0x0600
#include "gdk.h"
#include "gdkprivate-win32.h"
#include "gdkscreenprivate.h"
#include "gdkwin32screen.h"
#include "gdkdisplayprivate.h"
#include "gdkdisplay-win32.h"
#include "gdkmonitor-win32.h"
#include <dwmapi.h>
struct _GdkWin32Screen
{
GdkScreen parent_instance;
GdkWindow *root_window;
};
struct _GdkWin32ScreenClass
{
GdkScreenClass parent_class;
};
G_DEFINE_TYPE (GdkWin32Screen, gdk_win32_screen, GDK_TYPE_SCREEN)
static gboolean
init_root_window_size (GdkWin32Screen *screen)
{
GdkRectangle result;
int i;
GdkDisplay *display = _gdk_display;
int monitor_count;
GdkMonitor *monitor;
gboolean changed;
GdkWindowImplWin32 *root_impl;
monitor_count = gdk_display_get_n_monitors (display);
monitor = gdk_display_get_monitor (display, 0);
gdk_monitor_get_geometry (monitor, &result);
for (i = 1; i < monitor_count; i++)
{
GdkRectangle rect;
monitor = gdk_display_get_monitor (display, i);
gdk_monitor_get_geometry (monitor, &rect);
gdk_rectangle_union (&result, &rect, &result);
}
changed = screen->root_window->width != result.width ||
screen->root_window->height != result.height;
screen->root_window->width = result.width;
screen->root_window->height = result.height;
root_impl = GDK_WINDOW_IMPL_WIN32 (screen->root_window->impl);
root_impl->unscaled_width = result.width * root_impl->window_scale;
root_impl->unscaled_height = result.height * root_impl->window_scale;
return changed;
}
static gboolean
init_root_window (GdkWin32Screen *screen_win32)
{
GdkScreen *screen;
GdkWindow *window;
GdkWindowImplWin32 *impl_win32;
gboolean changed;
GdkWin32Display *win32_display;
screen = GDK_SCREEN (screen_win32);
g_assert (screen_win32->root_window == NULL);
window = _gdk_display_create_window (_gdk_display);
window->impl = g_object_new (GDK_TYPE_WINDOW_IMPL_WIN32, NULL);
impl_win32 = GDK_WINDOW_IMPL_WIN32 (window->impl);
impl_win32->wrapper = window;
window->impl_window = window;
window->window_type = GDK_WINDOW_ROOT;
screen_win32->root_window = window;
changed = init_root_window_size (screen_win32);
window->x = 0;
window->y = 0;
window->abs_x = 0;
window->abs_y = 0;
/* width and height already initialised in init_root_window_size() */
window->viewable = TRUE;
win32_display = GDK_WIN32_DISPLAY (_gdk_display);
if (win32_display->dpi_aware_type != PROCESS_DPI_UNAWARE)
impl_win32->window_scale = _gdk_win32_display_get_monitor_scale_factor (win32_display,
NULL,
impl_win32->handle,
NULL);
else
impl_win32->window_scale = 1;
impl_win32->unscaled_width = window->width * impl_win32->window_scale;
impl_win32->unscaled_height = window->height * impl_win32->window_scale;
gdk_win32_handle_table_insert ((HANDLE *) &impl_win32->handle, window);
GDK_NOTE (MISC, g_print ("screen->root_window=%p\n", window));
return changed;
}
static void
gdk_win32_screen_init (GdkWin32Screen *win32_screen)
{
GdkScreen *screen = GDK_SCREEN (win32_screen);
_gdk_win32_screen_set_font_resolution (win32_screen);
_gdk_win32_display_init_monitors (GDK_WIN32_DISPLAY (_gdk_display));
init_root_window (win32_screen);
}
void
_gdk_win32_screen_on_displaychange_event (GdkWin32Screen *screen)
{
gboolean monitors_changed;
monitors_changed = _gdk_win32_display_init_monitors (GDK_WIN32_DISPLAY (_gdk_display));
if (init_root_window_size (screen))
g_signal_emit_by_name (screen, "size-changed");
if (monitors_changed)
g_signal_emit_by_name (screen, "monitors-changed");
}
void
_gdk_win32_screen_set_font_resolution (GdkWin32Screen *win32_screen)
{
GdkScreen *screen = GDK_SCREEN (win32_screen);
int logpixelsx = -1;
const gchar *font_resolution;
font_resolution = g_getenv ("GDK_WIN32_FONT_RESOLUTION");
if (font_resolution)
{
int env_logpixelsx = atol (font_resolution);
if (env_logpixelsx > 0)
logpixelsx = env_logpixelsx;
}
else
{
gint dpi = -1;
GdkWin32Display *win32_display = GDK_WIN32_DISPLAY (gdk_screen_get_display (screen));
guint scale = _gdk_win32_display_get_monitor_scale_factor (win32_display, NULL, NULL, &dpi);
/* If we have a scale that is at least 2, don't scale up the fonts */
if (scale >= 2)
logpixelsx = USER_DEFAULT_SCREEN_DPI;
else
logpixelsx = dpi;
}
if (logpixelsx > 0)
_gdk_screen_set_resolution (screen, logpixelsx);
}
static GdkDisplay *
gdk_win32_screen_get_display (GdkScreen *screen)
{
return _gdk_display;
}
static GdkWindow *
gdk_win32_screen_get_root_window (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->root_window;
}
static void
gdk_win32_screen_finalize (GObject *object)
{
G_OBJECT_CLASS (gdk_win32_screen_parent_class)->finalize (object);
}
static void
gdk_win32_screen_class_init (GdkWin32ScreenClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkScreenClass *screen_class = GDK_SCREEN_CLASS (klass);
object_class->finalize = gdk_win32_screen_finalize;
screen_class->get_display = gdk_win32_screen_get_display;
screen_class->get_root_window = gdk_win32_screen_get_root_window;
screen_class->get_setting = _gdk_win32_screen_get_setting;
}
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