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