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 "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  32
  33 /* data for resolution changing */
  34 static struct x11drv_mode_info *dd_modes;
  35 static unsigned int dd_mode_count;
  36
  37 static unsigned int max_width;
  38 static unsigned int max_height;
  39
  40 static const unsigned int widths[]  = {320, 400, 512, 640, 800, 1024, 1152, 1280, 1400, 1600};
  41 static const unsigned int heights[] = {200, 300, 384, 480, 600,  768,  864, 1024, 1050, 1200};
  42 #define NUM_DESKTOP_MODES (sizeof(widths) / sizeof(widths[0]))
  43
  44 #define _NET_WM_STATE_REMOVE 0
  45 #define _NET_WM_STATE_ADD 1
  46
  47 /* create the mode structures */
  48 static void make_modes(void)
  49 {
  50     unsigned int i;
  51     /* original specified desktop size */
  52     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
  53     for (i=0; i<NUM_DESKTOP_MODES; i++)
  54     {
  55         if ( (widths[i] <= max_width) && (heights[i] <= max_height) )
  56         {
  57             if ( ( (widths[i] != max_width) || (heights[i] != max_height) ) &&
  58                  ( (widths[i] != screen_width) || (heights[i] != screen_height) ) )
  59             {
  60                 /* only add them if they are smaller than the root window and unique */
  61                 X11DRV_Settings_AddOneMode(widths[i], heights[i], 0, 60);
  62             }
  63         }
  64     }
  65     if ((max_width != screen_width) && (max_height != screen_height))
  66     {
  67         /* root window size (if different from desktop window) */
  68         X11DRV_Settings_AddOneMode(max_width, max_height, 0, 60);
  69     }
  70 }
  71
  72 static int X11DRV_desktop_GetCurrentMode(void)
  73 {
  74     unsigned int i;
  75     DWORD dwBpp = screen_bpp;
  76     for (i=0; i<dd_mode_count; i++)
  77     {
  78         if ( (screen_width == dd_modes[i].width) &&
  79              (screen_height == dd_modes[i].height) &&
  80              (dwBpp == dd_modes[i].bpp))
  81             return i;
  82     }
  83     ERR("In unknown mode, returning default\n");
  84     return 0;
  85 }
  86
  87 static LONG X11DRV_desktop_SetCurrentMode(int mode)
  88 {
  89     DWORD dwBpp = screen_bpp;
  90     if (dwBpp != dd_modes[mode].bpp)
  91     {
  92         FIXME("Cannot change screen BPP from %d to %d\n", dwBpp, dd_modes[mode].bpp);
  93         /* Ignore the depth mismatch
  94          *
  95          * Some (older) applications require a specific bit depth, this will allow them
  96          * to run. X11drv performs a color depth conversion if needed.
  97          */
  98     }
  99     TRACE("Resizing Wine desktop window to %dx%d\n", dd_modes[mode].width, dd_modes[mode].height);
 100     X11DRV_resize_desktop(dd_modes[mode].width, dd_modes[mode].height);
 101     return DISP_CHANGE_SUCCESSFUL;
 102 }
 103
 104 /***********************************************************************
 105  *              X11DRV_init_desktop
 106  *
 107  * Setup the desktop when not using the root window.
 108  */
 109 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
 110 {
 111     root_window = win;
 112     managed_mode = 0;  /* no managed windows in desktop mode */
 113     max_width = screen_width;
 114     max_height = screen_height;
 115     xinerama_init( width, height );
 116
 117     /* initialize the available resolutions */
 118     dd_modes = X11DRV_Settings_SetHandlers("desktop",
 119                                            X11DRV_desktop_GetCurrentMode,
 120                                            X11DRV_desktop_SetCurrentMode,
 121                                            NUM_DESKTOP_MODES+2, 1);
 122     make_modes();
 123     X11DRV_Settings_AddDepthModes();
 124     dd_mode_count = X11DRV_Settings_GetModeCount();
 125 }
 126
 127
 128 /***********************************************************************
 129  *              X11DRV_create_desktop
 130  *
 131  * Create the X11 desktop window for the desktop mode.
 132  */
 133 Window CDECL X11DRV_create_desktop( UINT width, UINT height )
 134 {
 135     XSetWindowAttributes win_attr;
 136     Window win;
 137     Display *display = thread_init_display();
 138
 139     TRACE( "%u x %u\n", width, height );
 140
 141     /* Create window */
 142     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | EnterWindowMask |
 143                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask;
 144     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 145
 146     if (default_visual.visual != DefaultVisual( display, DefaultScreen(display) ))
 147         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 148                                              default_visual.visual, AllocNone );
 149     else
 150         win_attr.colormap = None;
 151
 152     win = XCreateWindow( display, DefaultRootWindow(display),
 153                          0, 0, width, height, 0, default_visual.depth, InputOutput, default_visual.visual,
 154                          CWEventMask | CWCursor | CWColormap, &win_attr );
 155     if (win != None && width == screen_width && height == screen_height)
 156     {
 157         TRACE("setting desktop to fullscreen\n");
 158         XChangeProperty( display, win, x11drv_atom(_NET_WM_STATE), XA_ATOM, 32,
 159             PropModeReplace, (unsigned char*)&x11drv_atom(_NET_WM_STATE_FULLSCREEN),
 160             1);
 161     }
 162     XFlush( display );
 163     if (win != None) X11DRV_init_desktop( win, width, height );
 164     return win;
 165 }
 166
 167
 168 struct desktop_resize_data
 169 {
 170     RECT  old_screen_rect;
 171     RECT  old_virtual_rect;
 172 };
 173
 174 static BOOL CALLBACK update_windows_on_desktop_resize( HWND hwnd, LPARAM lparam )
 175 {
 176     struct x11drv_win_data *data;
 177     struct desktop_resize_data *resize_data = (struct desktop_resize_data *)lparam;
 178     int mask = 0;
 179
 180     if (!(data = get_win_data( hwnd ))) return TRUE;
 181
 182     /* update the full screen state */
 183     update_net_wm_states( data );
 184
 185     if (resize_data->old_virtual_rect.left != virtual_screen_rect.left) mask |= CWX;
 186     if (resize_data->old_virtual_rect.top != virtual_screen_rect.top) mask |= CWY;
 187     if (mask && data->whole_window)
 188     {
 189         XWindowChanges changes;
 190
 191         changes.x = data->whole_rect.left - virtual_screen_rect.left;
 192         changes.y = data->whole_rect.top - virtual_screen_rect.top;
 193         XReconfigureWMWindow( data->display, data->whole_window, data->vis.screen, mask, &changes );
 194     }
 195     release_win_data( data );
 196     if (hwnd == GetForegroundWindow()) clip_fullscreen_window( hwnd, TRUE );
 197     return TRUE;
 198 }
 199
 200 BOOL is_desktop_fullscreen(void)
 201 {
 202     return screen_width == max_width && screen_height == max_height;
 203 }
 204
 205 static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 206 {
 207     Display *display = thread_display();
 208     XEvent xev;
 209
 210     if (!display || root_window == DefaultRootWindow( display )) return;
 211
 212     xev.xclient.type = ClientMessage;
 213     xev.xclient.window = root_window;
 214     xev.xclient.message_type = x11drv_atom(_NET_WM_STATE);
 215     xev.xclient.serial = 0;
 216     xev.xclient.display = display;
 217     xev.xclient.send_event = True;
 218     xev.xclient.format = 32;
 219     if (width == max_width && height == max_height)
 220         xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
 221     else
 222         xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
 223     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_FULLSCREEN);
 224     xev.xclient.data.l[2] = 0;
 225     xev.xclient.data.l[3] = 1;
 226
 227     TRACE("action=%li\n", xev.xclient.data.l[0]);
 228
 229     XSendEvent( display, DefaultRootWindow(display), False,
 230                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 231
 232     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_VERT);
 233     xev.xclient.data.l[2] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_HORZ);
 234     XSendEvent( display, DefaultRootWindow(display), False,
 235                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 236 }
 237
 238 /***********************************************************************
 239  *              X11DRV_resize_desktop
 240  */
 241 void X11DRV_resize_desktop( unsigned int width, unsigned int height )
 242 {
 243     HWND hwnd = GetDesktopWindow();
 244     struct desktop_resize_data resize_data;
 245
 246     SetRect( &resize_data.old_screen_rect, 0, 0, screen_width, screen_height );
 247     resize_data.old_virtual_rect = virtual_screen_rect;
 248
 249     xinerama_init( width, height );
 250
 251     if (GetWindowThreadProcessId( hwnd, NULL ) != GetCurrentThreadId())
 252     {
 253         SendMessageW( hwnd, WM_X11DRV_RESIZE_DESKTOP, 0, MAKELPARAM( width, height ) );
 254     }
 255     else
 256     {
 257         TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 258         update_desktop_fullscreen( width, height );
 259         SetWindowPos( hwnd, 0, virtual_screen_rect.left, virtual_screen_rect.top,
 260                       virtual_screen_rect.right - virtual_screen_rect.left,
 261                       virtual_screen_rect.bottom - virtual_screen_rect.top,
 262                       SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 263         ungrab_clipping_window();
 264         SendMessageTimeoutW( HWND_BROADCAST, WM_DISPLAYCHANGE, screen_bpp,
 265                              MAKELPARAM( width, height ), SMTO_ABORTIFHUNG, 2000, NULL );
 266     }
 267
 268     EnumWindows( update_windows_on_desktop_resize, (LPARAM)&resize_data );
 269 }