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 /* create the mode structures */
  46 static void make_modes(void)
  47 {
  48     unsigned int i;
  49     /* original specified desktop size */
  50     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
  51     for (i=0; i<NUM_DESKTOP_MODES; i++)
  52     {
  53         if ( (widths[i] <= max_width) && (heights[i] <= max_height) )
  54         {
  55             if ( ( (widths[i] != max_width) || (heights[i] != max_height) ) &&
  56                  ( (widths[i] != screen_width) || (heights[i] != screen_height) ) )
  57             {
  58                 /* only add them if they are smaller than the root window and unique */
  59                 X11DRV_Settings_AddOneMode(widths[i], heights[i], 0, 60);
  60             }
  61         }
  62     }
  63     if ((max_width != screen_width) && (max_height != screen_height))
  64     {
  65         /* root window size (if different from desktop window) */
  66         X11DRV_Settings_AddOneMode(max_width, max_height, 0, 60);
  67     }
  68 }
  69
  70 static int X11DRV_desktop_GetCurrentMode(void)
  71 {
  72     unsigned int i;
  73     DWORD dwBpp = screen_bpp;
  74     for (i=0; i<dd_mode_count; i++)
  75     {
  76         if ( (screen_width == dd_modes[i].dwWidth) &&
  77              (screen_height == dd_modes[i].dwHeight) &&
  78              (dwBpp == dd_modes[i].dwBPP))
  79             return i;
  80     }
  81     ERR("In unknown mode, returning default\n");
  82     return 0;
  83 }
  84
  85 static LONG X11DRV_desktop_SetCurrentMode(int mode)
  86 {
  87     DWORD dwBpp = screen_bpp;
  88     if (dwBpp != dd_modes[mode].dwBPP)
  89     {
  90         FIXME("Cannot change screen BPP from %d to %d\n", dwBpp, dd_modes[mode].dwBPP);
  91         /* Ignore the depth mismatch
  92          *
  93          * Some (older) applications require a specific bit depth, this will allow them
  94          * to run. X11drv performs a color depth conversion if needed.
  95          */
  96     }
  97     TRACE("Resizing Wine desktop window to %dx%d\n", dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
  98     X11DRV_resize_desktop(dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
  99     return DISP_CHANGE_SUCCESSFUL;
 100 }
 101
 102 /***********************************************************************
 103  *              X11DRV_init_desktop
 104  *
 105  * Setup the desktop when not using the root window.
 106  */
 107 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
 108 {
 109     root_window = win;
 110     managed_mode = 0;  /* no managed windows in desktop mode */
 111     max_width = screen_width;
 112     max_height = screen_height;
 113     xinerama_init( width, height );
 114
 115     /* initialize the available resolutions */
 116     dd_modes = X11DRV_Settings_SetHandlers("desktop",
 117                                            X11DRV_desktop_GetCurrentMode,
 118                                            X11DRV_desktop_SetCurrentMode,
 119                                            NUM_DESKTOP_MODES+2, 1);
 120     make_modes();
 121     X11DRV_Settings_AddDepthModes();
 122     dd_mode_count = X11DRV_Settings_GetModeCount();
 123 }
 124
 125
 126 /***********************************************************************
 127  *              X11DRV_create_desktop
 128  *
 129  * Create the X11 desktop window for the desktop mode.
 130  */
 131 Window CDECL X11DRV_create_desktop( UINT width, UINT height )
 132 {
 133     XSetWindowAttributes win_attr;
 134     Window win;
 135     Display *display = thread_init_display();
 136
 137     wine_tsx11_lock();
 138
 139     /* Create window */
 140     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask |
 141                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
 142     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 143
 144     if (visual != DefaultVisual( display, DefaultScreen(display) ))
 145         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 146                                              visual, AllocNone );
 147     else
 148         win_attr.colormap = None;
 149
 150     win = XCreateWindow( display, DefaultRootWindow(display),
 151                          0, 0, width, height, 0, screen_depth, InputOutput, visual,
 152                          CWEventMask | CWCursor | CWColormap, &win_attr );
 153     XFlush( display );
 154     wine_tsx11_unlock();
 155     if (win != None) X11DRV_init_desktop( win, width, height );
 156     return win;
 157 }
 158
 159
 160 struct desktop_resize_data
 161 {
 162     RECT  old_screen_rect;
 163     RECT  old_virtual_rect;
 164 };
 165
 166 static BOOL CALLBACK update_windows_on_desktop_resize( HWND hwnd, LPARAM lparam )
 167 {
 168     struct x11drv_win_data *data;
 169     Display *display = thread_display();
 170     struct desktop_resize_data *resize_data = (struct desktop_resize_data *)lparam;
 171     int mask = 0;
 172
 173     if (!(data = X11DRV_get_win_data( hwnd ))) return TRUE;
 174
 175     /* update the full screen state */
 176     update_net_wm_states( display, data );
 177
 178     if (resize_data->old_virtual_rect.left != virtual_screen_rect.left) mask |= CWX;
 179     if (resize_data->old_virtual_rect.top != virtual_screen_rect.top) mask |= CWY;
 180     if (mask && data->whole_window)
 181     {
 182         XWindowChanges changes;
 183
 184         wine_tsx11_lock();
 185         changes.x = data->whole_rect.left - virtual_screen_rect.left;
 186         changes.y = data->whole_rect.top - virtual_screen_rect.top;
 187         XReconfigureWMWindow( display, data->whole_window,
 188                               DefaultScreen(display), mask, &changes );
 189         wine_tsx11_unlock();
 190     }
 191     return TRUE;
 192 }
 193
 194
 195 /***********************************************************************
 196  *              X11DRV_resize_desktop
 197  */
 198 void X11DRV_resize_desktop( unsigned int width, unsigned int height )
 199 {
 200     HWND hwnd = GetDesktopWindow();
 201     struct desktop_resize_data resize_data;
 202
 203     SetRect( &resize_data.old_screen_rect, 0, 0, screen_width, screen_height );
 204     resize_data.old_virtual_rect = virtual_screen_rect;
 205
 206     xinerama_init( width, height );
 207
 208     if (GetWindowThreadProcessId( hwnd, NULL ) != GetCurrentThreadId())
 209     {
 210         SendMessageW( hwnd, WM_X11DRV_RESIZE_DESKTOP, 0, MAKELPARAM( width, height ) );
 211     }
 212     else
 213     {
 214         TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 215         SetWindowPos( hwnd, 0, virtual_screen_rect.left, virtual_screen_rect.top,
 216                       virtual_screen_rect.right - virtual_screen_rect.left,
 217                       virtual_screen_rect.bottom - virtual_screen_rect.top,
 218                       SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 219         SendMessageTimeoutW( HWND_BROADCAST, WM_DISPLAYCHANGE, screen_bpp,
 220                              MAKELPARAM( width, height ), SMTO_ABORTIFHUNG, 2000, NULL );
 221     }
 222
 223     EnumWindows( update_windows_on_desktop_resize, (LPARAM)&resize_data );
 224 }