windows/x11drv/wnd.c

   1 /*
   2  * X11 windows driver
   3  *
   4  * Copyright 1993, 1994, 1995, 1996 Alexandre Julliard
   5  *                             1993 David Metcalfe
   6  *                       1995, 1996 Alex Korobka
   7  */
   8
   9 #include "config.h"
  10
  11 #ifndef X_DISPLAY_MISSING
  12
  13 #include <X11/Xatom.h>
  14 #include "ts_xlib.h"
  15 #include "ts_xutil.h"
  16
  17 #include <stdlib.h>
  18 #include <string.h>
  19 #include "color.h"
  20 #include "display.h"
  21 #include "dce.h"
  22 #include "options.h"
  23 #include "message.h"
  24 #include "win.h"
  25 #include "windows.h"
  26 #include "x11drv.h"
  27
  28 /**********************************************************************/
  29
  30 extern Cursor DISPLAY_XCursor;  /* Current X cursor */
  31
  32 /**********************************************************************/
  33
  34 /* X context to associate a hwnd to an X window */
  35 XContext winContext = 0;
  36
  37 Atom wmProtocols = None;
  38 Atom wmDeleteWindow = None;
  39 Atom dndProtocol = None;
  40 Atom dndSelection = None;
  41
  42 /***********************************************************************
  43  *           X11DRV_WND_GetXWindow
  44  *
  45  * Return the X window associated to a window.
  46  */
  47 Window X11DRV_WND_GetXWindow(HWND32 hwnd)
  48 {
  49     WND *wndPtr = WIN_FindWndPtr( hwnd );
  50     while (wndPtr && !wndPtr->window) wndPtr = wndPtr->parent;
  51     return wndPtr ? wndPtr->window : 0;
  52 }
  53
  54 /***********************************************************************
  55  *              X11DRV_WND_RegisterWindow
  56  *
  57  * Associate an X window to a HWND.
  58  */
  59 static void X11DRV_WND_RegisterWindow(WND *pWnd)
  60 {
  61   TSXSetWMProtocols( display, pWnd->window, &wmDeleteWindow, 1 );
  62
  63   if (!winContext) winContext = TSXUniqueContext();
  64   TSXSaveContext( display, pWnd->window, winContext, (char *)pWnd );
  65 }
  66
  67 /**********************************************************************
  68  *              X11DRV_WND_CreateDesktopWindow
  69  */
  70 BOOL32 X11DRV_WND_CreateDesktopWindow(WND *wndPtr, CLASS *classPtr, BOOL32 bUnicode)
  71 {
  72     if (wmProtocols == None)
  73         wmProtocols = TSXInternAtom( display, "WM_PROTOCOLS", True );
  74     if (wmDeleteWindow == None)
  75         wmDeleteWindow = TSXInternAtom( display, "WM_DELETE_WINDOW", True );
  76     if( dndProtocol == None )
  77         dndProtocol = TSXInternAtom( display, "DndProtocol" , False );
  78     if( dndSelection == None )
  79         dndSelection = TSXInternAtom( display, "DndSelection" , False );
  80
  81     wndPtr->window = rootWindow;
  82     wndPtr->expose_event = NULL;
  83     X11DRV_WND_RegisterWindow( wndPtr );
  84
  85     return TRUE;
  86 }
  87
  88 /**********************************************************************
  89  *              X11DRV_WND_CreateWindow
  90  */
  91 BOOL32 X11DRV_WND_CreateWindow(WND *wndPtr, CLASS *classPtr, CREATESTRUCT32A *cs, BOOL32 bUnicode)
  92 {
  93   /* Create the X window (only for top-level windows, and then only */
  94   /* when there's no desktop window) */
  95
  96   if (!(cs->style & WS_CHILD) && (rootWindow == DefaultRootWindow(display)))
  97     {
  98       XSetWindowAttributes win_attr;
  99
 100       if (Options.managed && ((cs->style & (WS_DLGFRAME | WS_THICKFRAME)) ||
 101                               (cs->dwExStyle & WS_EX_DLGMODALFRAME)))
 102         {
 103           win_attr.event_mask = ExposureMask | KeyPressMask |
 104             KeyReleaseMask | PointerMotionMask |
 105             ButtonPressMask | ButtonReleaseMask |
 106             FocusChangeMask | StructureNotifyMask;
 107           win_attr.override_redirect = FALSE;
 108           wndPtr->flags |= WIN_MANAGED;
 109         }
 110       else
 111         {
 112           win_attr.event_mask = ExposureMask | KeyPressMask |
 113             KeyReleaseMask | PointerMotionMask |
 114             ButtonPressMask | ButtonReleaseMask |
 115             FocusChangeMask;
 116           win_attr.override_redirect = TRUE;
 117         }
 118       win_attr.colormap      = COLOR_GetColormap();
 119       win_attr.backing_store = Options.backingstore ? WhenMapped : NotUseful;
 120       win_attr.save_under    = ((classPtr->style & CS_SAVEBITS) != 0);
 121       win_attr.cursor        = DISPLAY_XCursor;
 122       wndPtr->window = TSXCreateWindow( display, rootWindow, cs->x, cs->y,
 123                                         cs->cx, cs->cy, 0, CopyFromParent,
 124                                         InputOutput, CopyFromParent,
 125                                         CWEventMask | CWOverrideRedirect |
 126                                         CWColormap | CWCursor | CWSaveUnder |
 127                                         CWBackingStore, &win_attr );
 128
 129       if(!wndPtr->window)
 130         return FALSE;
 131
 132       if ((wndPtr->flags & WIN_MANAGED) &&
 133           (cs->dwExStyle & WS_EX_DLGMODALFRAME))
 134         {
 135           XSizeHints* size_hints = TSXAllocSizeHints();
 136
 137           if (size_hints)
 138             {
 139               size_hints->min_width = size_hints->max_width = cs->cx;
 140               size_hints->min_height = size_hints->max_height = cs->cy;
 141                 size_hints->flags = (PSize | PMinSize | PMaxSize);
 142                 TSXSetWMSizeHints( display, wndPtr->window, size_hints,
 143                                    XA_WM_NORMAL_HINTS );
 144                 TSXFree(size_hints);
 145             }
 146         }
 147
 148       if (cs->hwndParent)  /* Get window owner */
 149         {
 150           Window win = X11DRV_WND_GetXWindow( cs->hwndParent );
 151           if (win) TSXSetTransientForHint( display, wndPtr->window, win );
 152         }
 153       X11DRV_WND_RegisterWindow( wndPtr );
 154     }
 155   return TRUE;
 156 }
 157
 158 /***********************************************************************
 159  *              X11DRV_WND_DestroyWindow
 160  */
 161 BOOL32 X11DRV_WND_DestroyWindow(WND *pWnd)
 162 {
 163    if (pWnd->expose_event)
 164      {
 165        free( pWnd->expose_event );
 166        pWnd->expose_event = NULL;
 167      }
 168
 169    if (pWnd->window)
 170      {
 171        XEvent xe;
 172        TSXDeleteContext( display, pWnd->window, winContext );
 173        TSXDestroyWindow( display, pWnd->window );
 174        while( TSXCheckWindowEvent(display, pWnd->window, NoEventMask, &xe) );
 175        pWnd->window = None;
 176      }
 177
 178    return TRUE;
 179 }
 180
 181 /*****************************************************************
 182  *              X11DRV_WND_SetParent
 183  */
 184 WND *X11DRV_WND_SetParent(WND *wndPtr, WND *pWndParent)
 185 {
 186     if( wndPtr && pWndParent && (wndPtr != WIN_GetDesktop()) )
 187     {
 188         WND* pWndPrev = wndPtr->parent;
 189
 190         if( pWndParent != pWndPrev )
 191         {
 192             BOOL32 bFixupDCE = IsWindowVisible32(wndPtr->hwndSelf);
 193
 194             if ( wndPtr->window )
 195             {
 196                 /* Toplevel window needs to be reparented.  Used by Tk 8.0 */
 197
 198                 TSXDestroyWindow( display, wndPtr->window );
 199                 wndPtr->window = None;
 200             }
 201             else if( bFixupDCE )
 202                 DCE_InvalidateDCE( wndPtr, &wndPtr->rectWindow );
 203
 204             WIN_UnlinkWindow(wndPtr->hwndSelf);
 205             wndPtr->parent = pWndParent;
 206
 207             /* FIXME: Create an X counterpart for reparented top-level windows
 208              * when not in the desktop mode. */
 209
 210             if ( pWndParent != WIN_GetDesktop() ) wndPtr->dwStyle |= WS_CHILD;
 211             WIN_LinkWindow(wndPtr->hwndSelf, HWND_BOTTOM);
 212
 213             if( bFixupDCE )
 214             {
 215                 DCE_InvalidateDCE( wndPtr, &wndPtr->rectWindow );
 216                 UpdateWindow32(wndPtr->hwndSelf);
 217             }
 218         }
 219         return pWndPrev;
 220     } /* failure */
 221     return 0;
 222 }
 223
 224 /***********************************************************************
 225  *              X11DRV_WND_ForceWindowRaise
 226  *
 227  * Raise a window on top of the X stacking order, while preserving
 228  * the correct Windows Z order.
 229  */
 230 void X11DRV_WND_ForceWindowRaise(WND *pWnd)
 231 {
 232   XWindowChanges winChanges;
 233   WND *wndPrev;
 234
 235   if( !pWnd || !pWnd->window || (pWnd->flags & WIN_MANAGED) )
 236     return;
 237
 238   /* Raise all windows up to pWnd according to their Z order.
 239    * (it would be easier with sibling-related Below but it doesn't
 240    * work very well with SGI mwm for instance)
 241    */
 242   winChanges.stack_mode = Above;
 243   while (pWnd)
 244     {
 245       if (pWnd->window) TSXReconfigureWMWindow( display, pWnd->window, 0,
 246                                                 CWStackMode, &winChanges );
 247       wndPrev = WIN_GetDesktop()->child;
 248       if (wndPrev == pWnd) break;
 249       while (wndPrev && (wndPrev->next != pWnd)) wndPrev = wndPrev->next;
 250       pWnd = wndPrev;
 251     }
 252 }
 253
 254 /***********************************************************************
 255  *              X11DRV_WND_FindDesktopXWindow   [Internal]
 256  *
 257  * Find the actual X window which needs be restacked.
 258  * Used by X11DRV_SetWindowPos().
 259  */
 260 static Window X11DRV_WND_FindDesktopXWindow( WND *wndPtr )
 261 {
 262   if (!(wndPtr->flags & WIN_MANAGED))
 263     return wndPtr->window;
 264   else
 265     {
 266       Window window, root, parent, *children;
 267       int nchildren;
 268       window = wndPtr->window;
 269       for (;;)
 270         {
 271           TSXQueryTree( display, window, &root, &parent,
 272                         &children, &nchildren );
 273           TSXFree( children );
 274           if (parent == root)
 275             return window;
 276           window = parent;
 277         }
 278     }
 279 }
 280
 281 /***********************************************************************
 282  *           WINPOS_SetXWindowPos
 283  *
 284  * SetWindowPos() for an X window. Used by the real SetWindowPos().
 285  */
 286 void X11DRV_WND_SetWindowPos(WND *wndPtr, const WINDOWPOS32 *winpos, BOOL32 bSMC_SETXPOS)
 287 {
 288   XWindowChanges winChanges;
 289   int changeMask = 0;
 290   WND *winposPtr = WIN_FindWndPtr( winpos->hwnd );
 291
 292   if (!(winpos->flags & SWP_SHOWWINDOW) && (winpos->flags & SWP_HIDEWINDOW))
 293     {
 294       if(wndPtr && wndPtr->window) TSXUnmapWindow( display, wndPtr->window );
 295     }
 296
 297   if(bSMC_SETXPOS)
 298     {
 299       if ( !(winpos->flags & SWP_NOSIZE))
 300         {
 301           winChanges.width     = winpos->cx;
 302           winChanges.height    = winpos->cy;
 303           changeMask |= CWWidth | CWHeight;
 304
 305           /* Tweak dialog window size hints */
 306
 307           if ((winposPtr->flags & WIN_MANAGED) &&
 308               (winposPtr->dwExStyle & WS_EX_DLGMODALFRAME))
 309             {
 310               XSizeHints *size_hints = TSXAllocSizeHints();
 311
 312               if (size_hints)
 313                 {
 314                   long supplied_return;
 315
 316                   TSXGetWMSizeHints( display, winposPtr->window, size_hints,
 317                                      &supplied_return, XA_WM_NORMAL_HINTS);
 318                   size_hints->min_width = size_hints->max_width = winpos->cx;
 319                   size_hints->min_height = size_hints->max_height = winpos->cy;
 320                   TSXSetWMSizeHints( display, winposPtr->window, size_hints,
 321                                      XA_WM_NORMAL_HINTS );
 322                   TSXFree(size_hints);
 323                 }
 324             }
 325         }
 326       if (!(winpos->flags & SWP_NOMOVE))
 327         {
 328           winChanges.x = winpos->x;
 329           winChanges.y = winpos->y;
 330           changeMask |= CWX | CWY;
 331         }
 332       if (!(winpos->flags & SWP_NOZORDER))
 333         {
 334           winChanges.stack_mode = Below;
 335           changeMask |= CWStackMode;
 336
 337           if (winpos->hwndInsertAfter == HWND_TOP) winChanges.stack_mode = Above;
 338           else if (winpos->hwndInsertAfter != HWND_BOTTOM)
 339             {
 340               WND*   insertPtr = WIN_FindWndPtr( winpos->hwndInsertAfter );
 341               Window stack[2];
 342
 343               stack[0] = X11DRV_WND_FindDesktopXWindow( insertPtr );
 344               stack[1] = X11DRV_WND_FindDesktopXWindow( winposPtr );
 345
 346               /* for stupid window managers (i.e. all of them) */
 347
 348               TSXRestackWindows(display, stack, 2);
 349               changeMask &= ~CWStackMode;
 350             }
 351         }
 352       if (changeMask)
 353         {
 354           TSXReconfigureWMWindow( display, winposPtr->window, 0, changeMask, &winChanges );
 355         }
 356     }
 357
 358   if ( winpos->flags & SWP_SHOWWINDOW )
 359     {
 360       if(wndPtr && wndPtr->window) TSXMapWindow( display, wndPtr->window );
 361     }
 362 }
 363
 364 /*****************************************************************
 365  *              X11DRV_WND_SetText
 366  */
 367 void X11DRV_WND_SetText(WND *wndPtr, LPCSTR text)
 368 {
 369   if (!wndPtr->window)
 370     return;
 371
 372   TSXStoreName( display, wndPtr->window, text );
 373   TSXSetIconName( display, wndPtr->window, text );
 374 }
 375
 376 /*****************************************************************
 377  *              X11DRV_WND_SetFocus
 378  *
 379  * Set the X focus.
 380  * Explicit colormap management seems to work only with OLVWM.
 381  */
 382 void X11DRV_WND_SetFocus(WND *wndPtr)
 383 {
 384   HWND32 hwnd =  wndPtr->hwndSelf;
 385   XWindowAttributes win_attr;
 386
 387   /* Only mess with the X focus if there's */
 388   /* no desktop window and no window manager. */
 389   if ((rootWindow != DefaultRootWindow(display)) || Options.managed) return;
 390
 391   if (!hwnd)    /* If setting the focus to 0, uninstall the colormap */
 392     {
 393       if (COLOR_GetSystemPaletteFlags() & COLOR_PRIVATE)
 394         TSXUninstallColormap( display, COLOR_GetColormap() );
 395       return;
 396     }
 397
 398   /* Set X focus and install colormap */
 399
 400   if (!wndPtr->window) return;
 401
 402   if (!TSXGetWindowAttributes( display, wndPtr->window, &win_attr ) ||
 403       (win_attr.map_state != IsViewable))
 404     return;  /* If window is not viewable, don't change anything */
 405
 406   TSXSetInputFocus( display,wndPtr->window, RevertToParent, CurrentTime );
 407   if (COLOR_GetSystemPaletteFlags() & COLOR_PRIVATE)
 408     TSXInstallColormap( display, COLOR_GetColormap() );
 409
 410   EVENT_Synchronize();
 411 }
 412
 413 /*****************************************************************
 414  *              X11DRV_WND_PreSizeMove
 415  */
 416 void X11DRV_WND_PreSizeMove(WND *wndPtr)
 417 {
 418   if (!(wndPtr->dwStyle & WS_CHILD) && (rootWindow == DefaultRootWindow(display)))
 419     TSXGrabServer( display );
 420 }
 421
 422 /*****************************************************************
 423  *               X11DRV_WND_PostSizeMove
 424  */
 425 void X11DRV_WND_PostSizeMove(WND *wndPtr)
 426 {
 427   if (!(wndPtr->dwStyle & WS_CHILD) && (rootWindow == DefaultRootWindow(display)))
 428     TSXUngrabServer( display );
 429 }
 430
 431 #endif /* !defined(X_DISPLAY_MISSING) */