dlls/winex11.drv/desktop.c

   1 /*
   2  * X11DRV desktop window handling
   3  *
   4  * Copyright 2001 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include <X11/cursorfont.h>
  23 #include <X11/Xlib.h>
  24
  25 #include "x11drv.h"
  26
  27 /* avoid conflict with field names in included win32 headers */
  28 #undef Status
  29 #include "ddrawi.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  33
  34 /* data for resolution changing */
  35 static LPDDHALMODEINFO dd_modes;
  36 static unsigned int dd_mode_count;
  37
  38 static unsigned int max_width;
  39 static unsigned int max_height;
  40
  41 static const unsigned int widths[]  = {320, 400, 512, 640, 800, 1024, 1152, 1280, 1400, 1600};
  42 static const unsigned int heights[] = {200, 300, 384, 480, 600,  768,  864, 1024, 1050, 1200};
  43 #define NUM_DESKTOP_MODES (sizeof(widths) / sizeof(widths[0]))
  44
  45 #define _NET_WM_STATE_REMOVE 0
  46 #define _NET_WM_STATE_ADD 1
  47
  48 /* create the mode structures */
  49 static void make_modes(void)
  50 {
  51     unsigned int i;
  52     /* original specified desktop size */
  53     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
  54     for (i=0; i<NUM_DESKTOP_MODES; i++)
  55     {
  56         if ( (widths[i] <= max_width) && (heights[i] <= max_height) )
  57         {
  58             if ( ( (widths[i] != max_width) || (heights[i] != max_height) ) &&
  59                  ( (widths[i] != screen_width) || (heights[i] != screen_height) ) )
  60             {
  61                 /* only add them if they are smaller than the root window and unique */
  62                 X11DRV_Settings_AddOneMode(widths[i], heights[i], 0, 60);
  63             }
  64         }
  65     }
  66     if ((max_width != screen_width) && (max_height != screen_height))
  67     {
  68         /* root window size (if different from desktop window) */
  69         X11DRV_Settings_AddOneMode(max_width, max_height, 0, 60);
  70     }
  71 }
  72
  73 static int X11DRV_desktop_GetCurrentMode(void)
  74 {
  75     unsigned int i;
  76     DWORD dwBpp = screen_bpp;
  77     for (i=0; i<dd_mode_count; i++)
  78     {
  79         if ( (screen_width == dd_modes[i].dwWidth) &&
  80              (screen_height == dd_modes[i].dwHeight) &&
  81              (dwBpp == dd_modes[i].dwBPP))
  82             return i;
  83     }
  84     ERR("In unknown mode, returning default\n");
  85     return 0;
  86 }
  87
  88 static LONG X11DRV_desktop_SetCurrentMode(int mode)
  89 {
  90     DWORD dwBpp = screen_bpp;
  91     if (dwBpp != dd_modes[mode].dwBPP)
  92     {
  93         FIXME("Cannot change screen BPP from %d to %d\n", dwBpp, dd_modes[mode].dwBPP);
  94         /* Ignore the depth mismatch
  95          *
  96          * Some (older) applications require a specific bit depth, this will allow them
  97          * to run. X11drv performs a color depth conversion if needed.
  98          */
  99     }
 100     TRACE("Resizing Wine desktop window to %dx%d\n", dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
 101     X11DRV_resize_desktop(dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
 102     return DISP_CHANGE_SUCCESSFUL;
 103 }
 104
 105 /***********************************************************************
 106  *              X11DRV_init_desktop
 107  *
 108  * Setup the desktop when not using the root window.
 109  */
 110 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
 111 {
 112     root_window = win;
 113     managed_mode = 0;  /* no managed windows in desktop mode */
 114     max_width = screen_width;
 115     max_height = screen_height;
 116     xinerama_init( width, height );
 117
 118     /* initialize the available resolutions */
 119     dd_modes = X11DRV_Settings_SetHandlers("desktop",
 120                                            X11DRV_desktop_GetCurrentMode,
 121                                            X11DRV_desktop_SetCurrentMode,
 122                                            NUM_DESKTOP_MODES+2, 1);
 123     make_modes();
 124     X11DRV_Settings_AddDepthModes();
 125     dd_mode_count = X11DRV_Settings_GetModeCount();
 126 }
 127
 128
 129 /***********************************************************************
 130  *              X11DRV_create_desktop
 131  *
 132  * Create the X11 desktop window for the desktop mode.
 133  */
 134 Window CDECL X11DRV_create_desktop( UINT width, UINT height )
 135 {
 136     XSetWindowAttributes win_attr;
 137     Window win;
 138     Display *display = thread_init_display();
 139
 140     TRACE( "%u x %u\n", width, height );
 141
 142     wine_tsx11_lock();
 143
 144     /* Create window */
 145     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | EnterWindowMask |
 146                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
 147     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 148
 149     if (visual != DefaultVisual( display, DefaultScreen(display) ))
 150         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 151                                              visual, AllocNone );
 152     else
 153         win_attr.colormap = None;
 154
 155     win = XCreateWindow( display, DefaultRootWindow(display),
 156                          0, 0, width, height, 0, screen_depth, InputOutput, visual,
 157                          CWEventMask | CWCursor | CWColormap, &win_attr );
 158     if (win != None && width == screen_width && height == screen_height)
 159     {
 160         TRACE("setting desktop to fullscreen\n");
 161         XChangeProperty( display, win, x11drv_atom(_NET_WM_STATE), XA_ATOM, 32,
 162             PropModeReplace, (unsigned char*)&x11drv_atom(_NET_WM_STATE_FULLSCREEN),
 163             1);
 164     }
 165     XFlush( display );
 166     wine_tsx11_unlock();
 167     if (win != None) X11DRV_init_desktop( win, width, height );
 168     return win;
 169 }
 170
 171
 172 struct desktop_resize_data
 173 {
 174     RECT  old_screen_rect;
 175     RECT  old_virtual_rect;
 176 };
 177
 178 static BOOL CALLBACK update_windows_on_desktop_resize( HWND hwnd, LPARAM lparam )
 179 {
 180     struct x11drv_win_data *data;
 181     Display *display = thread_display();
 182     struct desktop_resize_data *resize_data = (struct desktop_resize_data *)lparam;
 183     int mask = 0;
 184
 185     if (!(data = X11DRV_get_win_data( hwnd ))) return TRUE;
 186
 187     /* update the full screen state */
 188     update_net_wm_states( display, data );
 189
 190     if (resize_data->old_virtual_rect.left != virtual_screen_rect.left) mask |= CWX;
 191     if (resize_data->old_virtual_rect.top != virtual_screen_rect.top) mask |= CWY;
 192     if (mask && data->whole_window)
 193     {
 194         XWindowChanges changes;
 195
 196         wine_tsx11_lock();
 197         changes.x = data->whole_rect.left - virtual_screen_rect.left;
 198         changes.y = data->whole_rect.top - virtual_screen_rect.top;
 199         XReconfigureWMWindow( display, data->whole_window,
 200                               DefaultScreen(display), mask, &changes );
 201         wine_tsx11_unlock();
 202     }
 203     return TRUE;
 204 }
 205
 206 static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 207 {
 208     Display *display = thread_display();
 209     XEvent xev;
 210
 211     if (!display || root_window != DefaultRootWindow( display )) return;
 212
 213     xev.xclient.type = ClientMessage;
 214     xev.xclient.window = root_window;
 215     xev.xclient.message_type = x11drv_atom(_NET_WM_STATE);
 216     xev.xclient.serial = 0;
 217     xev.xclient.display = display;
 218     xev.xclient.send_event = True;
 219     xev.xclient.format = 32;
 220     if (width == max_width && height == max_height)
 221         xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
 222     else
 223         xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
 224     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_FULLSCREEN);
 225     xev.xclient.data.l[2] = 0;
 226     xev.xclient.data.l[3] = 1;
 227
 228     TRACE("action=%li\n", xev.xclient.data.l[0]);
 229
 230     wine_tsx11_lock();
 231     XSendEvent( display, DefaultRootWindow(display), False,
 232                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 233     wine_tsx11_unlock();
 234 }
 235
 236 /***********************************************************************
 237  *              X11DRV_resize_desktop
 238  */
 239 void X11DRV_resize_desktop( unsigned int width, unsigned int height )
 240 {
 241     HWND hwnd = GetDesktopWindow();
 242     struct desktop_resize_data resize_data;
 243
 244     SetRect( &resize_data.old_screen_rect, 0, 0, screen_width, screen_height );
 245     resize_data.old_virtual_rect = virtual_screen_rect;
 246
 247     xinerama_init( width, height );
 248
 249     if (GetWindowThreadProcessId( hwnd, NULL ) != GetCurrentThreadId())
 250     {
 251         SendMessageW( hwnd, WM_X11DRV_RESIZE_DESKTOP, 0, MAKELPARAM( width, height ) );
 252     }
 253     else
 254     {
 255         TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 256         update_desktop_fullscreen( width, height );
 257         SetWindowPos( hwnd, 0, virtual_screen_rect.left, virtual_screen_rect.top,
 258                       virtual_screen_rect.right - virtual_screen_rect.left,
 259                       virtual_screen_rect.bottom - virtual_screen_rect.top,
 260                       SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 261         SendMessageTimeoutW( HWND_BROADCAST, WM_DISPLAYCHANGE, screen_bpp,
 262                              MAKELPARAM( width, height ), SMTO_ABORTIFHUNG, 2000, NULL );
 263     }
 264
 265     EnumWindows( update_windows_on_desktop_resize, (LPARAM)&resize_data );
 266 }