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