gtk/gdk/win32/gdkdisplay-win32.c
Tor Lillqvist 34159c417b Don't bother looking up EnumDisplayMonitors and GetMonitorInfoA
2008-08-04  Tor Lillqvist  <tml@novell.com>

	* gdk/win32/gdkdisplay-win32.c: Don't bother looking up
	EnumDisplayMonitors and GetMonitorInfoA dynamically, they are
	present in NT-based Windows since Windows 2000.
	(enum_monitor): For some reason the MONITORINFOEX struct in
	mingw-win64 is different than the proper one as in MSDN and 32-bit
	mingw, so just copy the proper definition here.


svn path=/trunk/; revision=20953
2008-08-03 23:05:37 +00:00

376 lines
9.5 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2002,2005 Hans Breuer
* Copyright (C) 2003 Tor Lillqvist
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "gdk.h"
#include "gdkprivate-win32.h"
#define HAVE_MONITOR_INFO
#if defined(_MSC_VER) && (WINVER < 0x500) && (WINVER > 0x0400)
#include <multimon.h>
#elif defined(_MSC_VER) && (WINVER <= 0x0400)
#undef HAVE_MONITOR_INFO
#endif
void
_gdk_windowing_set_default_display (GdkDisplay *display)
{
g_assert (_gdk_display == display);
}
#ifdef HAVE_MONITOR_INFO
static BOOL CALLBACK
count_monitor (HMONITOR hmonitor,
HDC hdc,
LPRECT rect,
LPARAM data)
{
gint *n = (gint *) data;
(*n)++;
return TRUE;
}
static BOOL CALLBACK
enum_monitor (HMONITOR hmonitor,
HDC hdc,
LPRECT rect,
LPARAM data)
{
/* The struct MONITORINFOEX definition is for some reason different
* in the winuser.h bundled with mingw64 from that in MSDN and the
* official 32-bit mingw (the MONITORINFO part is in a separate "mi"
* member). So to keep this easily compileable with either, repeat
* the MSDN definition it here.
*/
typedef struct tagMONITORINFOEXA2 {
DWORD cbSize;
RECT rcMonitor;
RECT rcWork;
DWORD dwFlags;
CHAR szDevice[CCHDEVICENAME];
} MONITORINFOEXA2;
MONITORINFOEXA2 monitor_info;
HDC hDC;
gint *index = (gint *) data;
GdkWin32Monitor *monitor;
g_assert (*index < _gdk_num_monitors);
monitor = _gdk_monitors + *index;
monitor_info.cbSize = sizeof (MONITORINFOEX);
GetMonitorInfoA (hmonitor, (MONITORINFO *) &monitor_info);
#ifndef MONITORINFOF_PRIMARY
#define MONITORINFOF_PRIMARY 1
#endif
monitor->name = g_strdup (monitor_info.szDevice);
hDC = CreateDCA ("DISPLAY", monitor_info.szDevice, NULL, NULL);
monitor->width_mm = GetDeviceCaps (hDC, HORZSIZE);
monitor->height_mm = GetDeviceCaps (hDC, VERTSIZE);
DeleteDC (hDC);
monitor->rect.x = monitor_info.rcMonitor.left;
monitor->rect.y = monitor_info.rcMonitor.top;
monitor->rect.width = monitor_info.rcMonitor.right - monitor_info.rcMonitor.left;
monitor->rect.height = monitor_info.rcMonitor.bottom - monitor_info.rcMonitor.top;
if (monitor_info.dwFlags & MONITORINFOF_PRIMARY &&
*index != 0)
{
/* Put primary monitor at index 0, just in case somebody needs
* to know which one is the primary.
*/
GdkWin32Monitor temp = *monitor;
*monitor = _gdk_monitors[0];
_gdk_monitors[0] = temp;
}
(*index)++;
return TRUE;
}
#endif /* HAVE_MONITOR_INFO */
void
_gdk_monitor_init (void)
{
#ifdef HAVE_MONITOR_INFO
gint i, index;
_gdk_num_monitors = 0;
EnumDisplayMonitors (NULL, NULL, count_monitor, (LPARAM) &_gdk_num_monitors);
_gdk_monitors = g_renew (GdkWin32Monitor, _gdk_monitors, _gdk_num_monitors);
index = 0;
EnumDisplayMonitors (NULL, NULL, enum_monitor, (LPARAM) &index);
_gdk_offset_x = G_MININT;
_gdk_offset_y = G_MININT;
/* Calculate offset */
for (i = 0; i < _gdk_num_monitors; i++)
{
_gdk_offset_x = MAX (_gdk_offset_x, -_gdk_monitors[i].rect.x);
_gdk_offset_y = MAX (_gdk_offset_y, -_gdk_monitors[i].rect.y);
}
GDK_NOTE (MISC, g_print ("Multi-monitor offset: (%d,%d)\n",
_gdk_offset_x, _gdk_offset_y));
/* Translate monitor coords into GDK coordinate space */
for (i = 0; i < _gdk_num_monitors; i++)
{
_gdk_monitors[i].rect.x += _gdk_offset_x;
_gdk_monitors[i].rect.y += _gdk_offset_y;
GDK_NOTE (MISC, g_print ("Monitor %d: %dx%d@%+d%+d\n",
i, _gdk_monitors[i].rect.width,
_gdk_monitors[i].rect.height,
_gdk_monitors[i].rect.x,
_gdk_monitors[i].rect.y));
}
#else
HDC hDC;
_gdk_num_monitors = 1;
_gdk_monitors = g_renew (GdkWin32Monitor, _gdk_monitors, 1);
_gdk_monitors[0].name = g_strdup ("DISPLAY");
hDC = GetDC (NULL);
_gdk_monitors[0].width_mm = GetDeviceCaps (hDC, HORZSIZE);
_gdk_monitors[0].height_mm = GetDeviceCaps (hDC, VERTSIZE);
ReleaseDC (NULL, hDC);
_gdk_monitors[0].rect.x = 0;
_gdk_monitors[0].rect.y = 0;
_gdk_monitors[0].rect.width = GetSystemMetrics (SM_CXSCREEN);
_gdk_monitors[0].rect.height = GetSystemMetrics (SM_CYSCREEN);
_gdk_offset_x = 0;
_gdk_offset_y = 0;
#endif
}
GdkDisplay *
gdk_display_open (const gchar *display_name)
{
GDK_NOTE (MISC, g_print ("gdk_display_open: %s\n", (display_name ? display_name : "NULL")));
if (display_name == NULL ||
g_ascii_strcasecmp (display_name,
gdk_display_get_name (_gdk_display)) == 0)
{
if (_gdk_display != NULL)
{
GDK_NOTE (MISC, g_print ("... return _gdk_display\n"));
return _gdk_display;
}
}
else
{
GDK_NOTE (MISC, g_print ("... return NULL\n"));
return NULL;
}
_gdk_display = g_object_new (GDK_TYPE_DISPLAY, NULL);
_gdk_screen = g_object_new (GDK_TYPE_SCREEN, NULL);
_gdk_monitor_init ();
_gdk_visual_init ();
gdk_screen_set_default_colormap (_gdk_screen,
gdk_screen_get_system_colormap (_gdk_screen));
_gdk_windowing_window_init ();
_gdk_windowing_image_init ();
_gdk_events_init ();
_gdk_input_init (_gdk_display);
_gdk_dnd_init ();
/* Precalculate display name */
(void) gdk_display_get_name (_gdk_display);
g_signal_emit_by_name (gdk_display_manager_get (),
"display_opened", _gdk_display);
GDK_NOTE (MISC, g_print ("... _gdk_display now set up\n"));
return _gdk_display;
}
G_CONST_RETURN gchar *
gdk_display_get_name (GdkDisplay *display)
{
HDESK hdesk = GetThreadDesktop (GetCurrentThreadId ());
char dummy;
char *desktop_name;
HWINSTA hwinsta = GetProcessWindowStation ();
char *window_station_name;
DWORD n;
DWORD session_id;
char *display_name;
static const char *display_name_cache = NULL;
typedef BOOL (* PFN_ProcessIdToSessionId) (DWORD, DWORD *);
PFN_ProcessIdToSessionId processIdToSessionId;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
if (display_name_cache != NULL)
return display_name_cache;
n = 0;
GetUserObjectInformation (hdesk, UOI_NAME, &dummy, 0, &n);
if (n == 0)
desktop_name = "Default";
else
{
n++;
desktop_name = g_alloca (n + 1);
memset (desktop_name, 0, n + 1);
if (!GetUserObjectInformation (hdesk, UOI_NAME, desktop_name, n, &n))
desktop_name = "Default";
}
n = 0;
GetUserObjectInformation (hwinsta, UOI_NAME, &dummy, 0, &n);
if (n == 0)
window_station_name = "WinSta0";
else
{
n++;
window_station_name = g_alloca (n + 1);
memset (window_station_name, 0, n + 1);
if (!GetUserObjectInformation (hwinsta, UOI_NAME, window_station_name, n, &n))
window_station_name = "WinSta0";
}
processIdToSessionId = (PFN_ProcessIdToSessionId) GetProcAddress (GetModuleHandle ("kernel32.dll"), "ProcessIdToSessionId");
if (!processIdToSessionId || !processIdToSessionId (GetCurrentProcessId (), &session_id))
session_id = 0;
display_name = g_strdup_printf ("%ld\\%s\\%s",
session_id,
window_station_name,
desktop_name);
GDK_NOTE (MISC, g_print ("gdk_display_get_name: %s\n", display_name));
display_name_cache = display_name;
return display_name_cache;
}
gint
gdk_display_get_n_screens (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
return 1;
}
GdkScreen *
gdk_display_get_screen (GdkDisplay *display,
gint screen_num)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_return_val_if_fail (screen_num == 0, NULL);
return _gdk_screen;
}
GdkScreen *
gdk_display_get_default_screen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return _gdk_screen;
}
GdkWindow *
gdk_display_get_default_group (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_warning ("gdk_display_get_default_group not yet implemented");
return NULL;
}
gboolean
gdk_display_supports_selection_notification (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
return FALSE;
}
gboolean
gdk_display_request_selection_notification (GdkDisplay *display,
GdkAtom selection)
{
return FALSE;
}
gboolean
gdk_display_supports_clipboard_persistence (GdkDisplay *display)
{
return FALSE;
}
void
gdk_display_store_clipboard (GdkDisplay *display,
GdkWindow *clipboard_window,
guint32 time_,
const GdkAtom *targets,
gint n_targets)
{
}
gboolean
gdk_display_supports_shapes (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
return TRUE;
}
gboolean
gdk_display_supports_input_shapes (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
/* Not yet implemented. See comment in
* gdk_window_input_shape_combine_mask().
*/
return FALSE;
}
gboolean
gdk_display_supports_composite (GdkDisplay *display)
{
return FALSE;
}