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 struct screen_size {
  41     unsigned int width;
  42     unsigned int height;
  43 } screen_sizes[] = {
  44     /* 4:3 */
  45     { 320,  240},
  46     { 400,  300},
  47     { 512,  384},
  48     { 640,  480},
  49     { 768,  576},
  50     { 800,  600},
  51     {1024,  768},
  52     {1152,  864},
  53     {1280,  960},
  54     {1400, 1050},
  55     {1600, 1200},
  56     {2048, 1536},
  57     /* 5:4 */
  58     {1280, 1024},
  59     {2560, 2048},
  60     /* 16:9 */
  61     {1280,  720},
  62     {1366,  768},
  63     {1600,  900},
  64     {1920, 1080},
  65     {2560, 1440},
  66     {3840, 2160},
  67     /* 16:10 */
  68     { 320,  200},
  69     { 640,  400},
  70     {1280,  800},
  71     {1440,  900},
  72     {1680, 1050},
  73     {1920, 1200},
  74     {2560, 1600}
  75 };
  76
  77 #define _NET_WM_STATE_REMOVE 0
  78 #define _NET_WM_STATE_ADD 1
  79
  80 /* create the mode structures */
  81 static void make_modes(void)
  82 {
  83     RECT primary_rect = get_primary_monitor_rect();
  84     unsigned int i;
  85     unsigned int screen_width = primary_rect.right - primary_rect.left;
  86     unsigned int screen_height = primary_rect.bottom - primary_rect.top;
  87
  88     /* original specified desktop size */
  89     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
  90     for (i=0; i<ARRAY_SIZE(screen_sizes); i++)
  91     {
  92         if ( (screen_sizes[i].width <= max_width) && (screen_sizes[i].height <= max_height) )
  93         {
  94             if ( ( (screen_sizes[i].width != max_width) || (screen_sizes[i].height != max_height) ) &&
  95                  ( (screen_sizes[i].width != screen_width) || (screen_sizes[i].height != screen_height) ) )
  96             {
  97                 /* only add them if they are smaller than the root window and unique */
  98                 X11DRV_Settings_AddOneMode(screen_sizes[i].width, screen_sizes[i].height, 0, 60);
  99             }
 100         }
 101     }
 102     if ((max_width != screen_width) && (max_height != screen_height))
 103     {
 104         /* root window size (if different from desktop window) */
 105         X11DRV_Settings_AddOneMode(max_width, max_height, 0, 60);
 106     }
 107 }
 108
 109 static int X11DRV_desktop_GetCurrentMode(void)
 110 {
 111     unsigned int i;
 112     DWORD dwBpp = screen_bpp;
 113     RECT primary_rect = get_primary_monitor_rect();
 114
 115     for (i=0; i<dd_mode_count; i++)
 116     {
 117         if ( (primary_rect.right - primary_rect.left == dd_modes[i].width) &&
 118              (primary_rect.bottom - primary_rect.top == dd_modes[i].height) &&
 119              (dwBpp == dd_modes[i].bpp))
 120             return i;
 121     }
 122     ERR("In unknown mode, returning default\n");
 123     return 0;
 124 }
 125
 126 static LONG X11DRV_desktop_SetCurrentMode(int mode)
 127 {
 128     DWORD dwBpp = screen_bpp;
 129     if (dwBpp != dd_modes[mode].bpp)
 130     {
 131         FIXME("Cannot change screen BPP from %d to %d\n", dwBpp, dd_modes[mode].bpp);
 132         /* Ignore the depth mismatch
 133          *
 134          * Some (older) applications require a specific bit depth, this will allow them
 135          * to run. X11drv performs a color depth conversion if needed.
 136          */
 137     }
 138     TRACE("Resizing Wine desktop window to %dx%d\n", dd_modes[mode].width, dd_modes[mode].height);
 139     X11DRV_resize_desktop(dd_modes[mode].width, dd_modes[mode].height);
 140     return DISP_CHANGE_SUCCESSFUL;
 141 }
 142
 143 /***********************************************************************
 144  *              X11DRV_init_desktop
 145  *
 146  * Setup the desktop when not using the root window.
 147  */
 148 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
 149 {
 150     RECT primary_rect;
 151
 152     root_window = win;
 153     managed_mode = FALSE;  /* no managed windows in desktop mode */
 154
 155     xinerama_init( width, height );
 156     X11DRV_DisplayDevices_Init( TRUE );
 157
 158     primary_rect = get_primary_monitor_rect();
 159     max_width = primary_rect.right - primary_rect.left;
 160     max_height = primary_rect.bottom - primary_rect.top;
 161
 162     /* initialize the available resolutions */
 163     dd_modes = X11DRV_Settings_SetHandlers("desktop",
 164                                            X11DRV_desktop_GetCurrentMode,
 165                                            X11DRV_desktop_SetCurrentMode,
 166                                            ARRAY_SIZE(screen_sizes)+2, 1);
 167     make_modes();
 168     X11DRV_Settings_AddDepthModes();
 169     dd_mode_count = X11DRV_Settings_GetModeCount();
 170 }
 171
 172
 173 /***********************************************************************
 174  *              X11DRV_create_desktop
 175  *
 176  * Create the X11 desktop window for the desktop mode.
 177  */
 178 BOOL CDECL X11DRV_create_desktop( UINT width, UINT height )
 179 {
 180     static const WCHAR rootW[] = {'r','o','o','t',0};
 181     XSetWindowAttributes win_attr;
 182     Window win;
 183     Display *display = thread_init_display();
 184     RECT rect;
 185     WCHAR name[MAX_PATH];
 186
 187     if (!GetUserObjectInformationW( GetThreadDesktop( GetCurrentThreadId() ),
 188                                     UOI_NAME, name, sizeof(name), NULL ))
 189         name[0] = 0;
 190
 191     TRACE( "%s %ux%u\n", debugstr_w(name), width, height );
 192
 193     /* magic: desktop "root" means use the root window */
 194     if (!lstrcmpiW( name, rootW )) return FALSE;
 195
 196     /* Create window */
 197     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | EnterWindowMask |
 198                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask;
 199     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 200
 201     if (default_visual.visual != DefaultVisual( display, DefaultScreen(display) ))
 202         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 203                                              default_visual.visual, AllocNone );
 204     else
 205         win_attr.colormap = None;
 206
 207     win = XCreateWindow( display, DefaultRootWindow(display),
 208                          0, 0, width, height, 0, default_visual.depth, InputOutput, default_visual.visual,
 209                          CWEventMask | CWCursor | CWColormap, &win_attr );
 210     if (!win) return FALSE;
 211
 212     SetRect( &rect, 0, 0, width, height );
 213     if (is_window_rect_fullscreen( &rect ))
 214     {
 215         TRACE("setting desktop to fullscreen\n");
 216         XChangeProperty( display, win, x11drv_atom(_NET_WM_STATE), XA_ATOM, 32,
 217             PropModeReplace, (unsigned char*)&x11drv_atom(_NET_WM_STATE_FULLSCREEN),
 218             1);
 219     }
 220     if (!create_desktop_win_data( win )) return FALSE;
 221     XFlush( display );
 222     X11DRV_init_desktop( win, width, height );
 223     return TRUE;
 224 }
 225
 226
 227 struct desktop_resize_data
 228 {
 229     RECT  old_virtual_rect;
 230     RECT  new_virtual_rect;
 231 };
 232
 233 static BOOL CALLBACK update_windows_on_desktop_resize( HWND hwnd, LPARAM lparam )
 234 {
 235     struct x11drv_win_data *data;
 236     struct desktop_resize_data *resize_data = (struct desktop_resize_data *)lparam;
 237     int mask = 0;
 238
 239     if (!(data = get_win_data( hwnd ))) return TRUE;
 240
 241     /* update the full screen state */
 242     update_net_wm_states( data );
 243
 244     if (resize_data->old_virtual_rect.left != resize_data->new_virtual_rect.left) mask |= CWX;
 245     if (resize_data->old_virtual_rect.top != resize_data->new_virtual_rect.top) mask |= CWY;
 246     if (mask && data->whole_window)
 247     {
 248         POINT pos = virtual_screen_to_root( data->whole_rect.left, data->whole_rect.top );
 249         XWindowChanges changes;
 250         changes.x = pos.x;
 251         changes.y = pos.y;
 252         XReconfigureWMWindow( data->display, data->whole_window, data->vis.screen, mask, &changes );
 253     }
 254     release_win_data( data );
 255     if (hwnd == GetForegroundWindow()) clip_fullscreen_window( hwnd, TRUE );
 256     return TRUE;
 257 }
 258
 259 BOOL is_desktop_fullscreen(void)
 260 {
 261     RECT primary_rect = get_primary_monitor_rect();
 262     return (primary_rect.right - primary_rect.left == max_width &&
 263             primary_rect.bottom - primary_rect.top == max_height);
 264 }
 265
 266 static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 267 {
 268     Display *display = thread_display();
 269     XEvent xev;
 270
 271     if (!display || root_window == DefaultRootWindow( display )) return;
 272
 273     xev.xclient.type = ClientMessage;
 274     xev.xclient.window = root_window;
 275     xev.xclient.message_type = x11drv_atom(_NET_WM_STATE);
 276     xev.xclient.serial = 0;
 277     xev.xclient.display = display;
 278     xev.xclient.send_event = True;
 279     xev.xclient.format = 32;
 280     if (width == max_width && height == max_height)
 281         xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
 282     else
 283         xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
 284     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_FULLSCREEN);
 285     xev.xclient.data.l[2] = 0;
 286     xev.xclient.data.l[3] = 1;
 287
 288     TRACE("action=%li\n", xev.xclient.data.l[0]);
 289
 290     XSendEvent( display, DefaultRootWindow(display), False,
 291                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 292
 293     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_VERT);
 294     xev.xclient.data.l[2] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_HORZ);
 295     XSendEvent( display, DefaultRootWindow(display), False,
 296                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 297 }
 298
 299 /***********************************************************************
 300  *              X11DRV_resize_desktop
 301  */
 302 void X11DRV_resize_desktop( unsigned int width, unsigned int height )
 303 {
 304     HWND hwnd = GetDesktopWindow();
 305     struct desktop_resize_data resize_data;
 306
 307     resize_data.old_virtual_rect = get_virtual_screen_rect();
 308
 309     xinerama_init( width, height );
 310     X11DRV_DisplayDevices_Init( TRUE );
 311     resize_data.new_virtual_rect = get_virtual_screen_rect();
 312
 313     if (GetWindowThreadProcessId( hwnd, NULL ) != GetCurrentThreadId())
 314     {
 315         SendMessageW( hwnd, WM_X11DRV_RESIZE_DESKTOP, 0, MAKELPARAM( width, height ) );
 316     }
 317     else
 318     {
 319         TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 320         update_desktop_fullscreen( width, height );
 321         SetWindowPos( hwnd, 0, resize_data.new_virtual_rect.left, resize_data.new_virtual_rect.top,
 322                       resize_data.new_virtual_rect.right - resize_data.new_virtual_rect.left,
 323                       resize_data.new_virtual_rect.bottom - resize_data.new_virtual_rect.top,
 324                       SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 325         ungrab_clipping_window();
 326         SendMessageTimeoutW( HWND_BROADCAST, WM_DISPLAYCHANGE, screen_bpp,
 327                              MAKELPARAM( width, height ), SMTO_ABORTIFHUNG, 2000, NULL );
 328     }
 329
 330     EnumWindows( update_windows_on_desktop_resize, (LPARAM)&resize_data );
 331 }