src/x11/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 #include "wx/setup.h"
  25 #include "wx/menu.h"
  26 #include "wx/dc.h"
  27 #include "wx/dcclient.h"
  28 #include "wx/utils.h"
  29 #include "wx/app.h"
  30 #include "wx/panel.h"
  31 #include "wx/layout.h"
  32 #include "wx/dialog.h"
  33 #include "wx/listbox.h"
  34 #include "wx/button.h"
  35 #include "wx/settings.h"
  36 #include "wx/msgdlg.h"
  37 #include "wx/frame.h"
  38 #include "wx/scrolwin.h"
  39 #include "wx/module.h"
  40 #include "wx/menuitem.h"
  41 #include "wx/log.h"
  42
  43 #if  wxUSE_DRAG_AND_DROP
  44     #include "wx/dnd.h"
  45 #endif
  46
  47 #include "wx/x11/private.h"
  48 #include "X11/Xutil.h"
  49
  50 #include <string.h>
  51
  52 // ----------------------------------------------------------------------------
  53 // constants
  54 // ----------------------------------------------------------------------------
  55
  56 static const int SCROLL_MARGIN = 4;
  57
  58 // ----------------------------------------------------------------------------
  59 // global variables for this module
  60 // ----------------------------------------------------------------------------
  61
  62 extern wxHashTable *wxWidgetHashTable;
  63 static wxWindow* g_captureWindow = NULL;
  64
  65 // ----------------------------------------------------------------------------
  66 // macros
  67 // ----------------------------------------------------------------------------
  68
  69 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
  70 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
  71 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
  72
  73 // ----------------------------------------------------------------------------
  74 // event tables
  75 // ----------------------------------------------------------------------------
  76
  77 IMPLEMENT_ABSTRACT_CLASS(wxWindowX11, wxWindowBase)
  78
  79 BEGIN_EVENT_TABLE(wxWindowX11, wxWindowBase)
  80     EVT_SYS_COLOUR_CHANGED(wxWindowX11::OnSysColourChanged)
  81     EVT_IDLE(wxWindowX11::OnIdle)
  82 END_EVENT_TABLE()
  83
  84 // ============================================================================
  85 // implementation
  86 // ============================================================================
  87
  88 // ----------------------------------------------------------------------------
  89 // helper functions
  90 // ----------------------------------------------------------------------------
  91
  92 // ----------------------------------------------------------------------------
  93 // constructors
  94 // ----------------------------------------------------------------------------
  95
  96 void wxWindowX11::Init()
  97 {
  98     // generic initializations first
  99     InitBase();
 100
 101     // X11-specific
 102     m_mainWidget = (WXWindow) 0;
 103
 104     m_winCaptured = FALSE;
 105
 106     m_isShown = TRUE;
 107     m_isBeingDeleted = FALSE;
 108
 109     m_lastTS = 0;
 110     m_lastButton = 0;
 111 }
 112
 113 // real construction (Init() must have been called before!)
 114 bool wxWindowX11::Create(wxWindow *parent, wxWindowID id,
 115                       const wxPoint& pos,
 116                       const wxSize& size,
 117                       long style,
 118                       const wxString& name)
 119 {
 120     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 121
 122     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 123
 124     parent->AddChild(this);
 125
 126     int w = size.GetWidth();
 127     int h = size.GetHeight();
 128     int x = size.GetX();
 129     int y = size.GetY();
 130     if (w == -1) w = 20;
 131     if (h == -1) h = 20;
 132     if (x == -1) x = 0;
 133     if (y == -1) y = 0;
 134
 135     Display *xdisplay = (Display*) wxGlobalDisplay();
 136     int xscreen = DefaultScreen( xdisplay );
 137     Colormap cm = DefaultColormap( xdisplay, xscreen );
 138
 139     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 140     m_backgroundColour.CalcPixel( (WXColormap) cm );
 141     m_hasBgCol = TRUE;
 142
 143     m_foregroundColour = *wxBLACK;
 144     m_foregroundColour.CalcPixel( (WXColormap) cm );
 145
 146
 147     Window parentWindow = (Window) parent->GetMainWindow();
 148
 149     Window window = XCreateSimpleWindow(
 150         xdisplay, parentWindow,
 151         x, y, w, h, 0,
 152         m_backgroundColour.GetPixel(),
 153         m_backgroundColour.GetPixel() );
 154
 155     m_mainWidget = (WXWindow) window;
 156
 157     // Select event types wanted
 158     XSelectInput(wxGlobalDisplay(), window,
 159         ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
 160         ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask |
 161         KeymapStateMask | FocusChangeMask | ColormapChangeMask | StructureNotifyMask |
 162         PropertyChangeMask);
 163
 164     wxAddWindowToTable(window, (wxWindow*) this);
 165
 166     // Is a subwindow, so map immediately
 167     m_isShown = TRUE;
 168     XMapWindow(wxGlobalDisplay(), window);
 169
 170     // Without this, the cursor may not be restored properly (e.g. in splitter
 171     // sample).
 172     SetCursor(*wxSTANDARD_CURSOR);
 173     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 174     SetSize(pos.x, pos.y, size.x, size.y);
 175
 176     return TRUE;
 177 }
 178
 179 // Destructor
 180 wxWindowX11::~wxWindowX11()
 181 {
 182     if (g_captureWindow == this)
 183         g_captureWindow = NULL;
 184
 185     m_isBeingDeleted = TRUE;
 186
 187     // X11-specific actions first
 188     Window main = (Window) m_mainWidget;
 189     if ( main )
 190     {
 191         // Removes event handlers
 192         //DetachWidget(main);
 193     }
 194
 195     if (m_parent)
 196         m_parent->RemoveChild( this );
 197
 198     DestroyChildren();
 199
 200     // Destroy the window
 201     if (main)
 202     {
 203         XSelectInput( wxGlobalDisplay(), main, NoEventMask);
 204         wxDeleteWindowFromTable( main );
 205         XDestroyWindow( wxGlobalDisplay(), main );
 206         m_mainWidget = NULL;
 207     }
 208 }
 209
 210 // ---------------------------------------------------------------------------
 211 // basic operations
 212 // ---------------------------------------------------------------------------
 213
 214 void wxWindowX11::SetFocus()
 215 {
 216     Window wMain = (Window) GetMainWindow();
 217     if (wMain)
 218     {
 219         XSetInputFocus(wxGlobalDisplay(), wMain, RevertToParent, CurrentTime);
 220
 221         XWMHints wmhints;
 222         wmhints.flags = InputHint;
 223         wmhints.input = True;
 224         XSetWMHints(wxGlobalDisplay(), wMain, &wmhints);
 225     }
 226 }
 227
 228 // Get the window with the focus
 229 wxWindow *wxWindowBase::FindFocus()
 230 {
 231     Window wFocus = (Window) 0;
 232     int revert = 0;
 233
 234     XGetInputFocus(wxGlobalDisplay(), & wFocus, & revert);
 235     if (wFocus)
 236     {
 237         wxWindow *win = NULL;
 238         do
 239         {
 240             win = wxGetWindowFromTable(wFocus);
 241             wFocus = wxGetWindowParent(wFocus);
 242         } while (wFocus && !win);
 243
 244         return win;
 245     }
 246
 247     return NULL;
 248 }
 249
 250 // Enabling/disabling handled by event loop, and not sending events
 251 // if disabled.
 252 bool wxWindowX11::Enable(bool enable)
 253 {
 254     if ( !wxWindowBase::Enable(enable) )
 255         return FALSE;
 256
 257     return TRUE;
 258 }
 259
 260 bool wxWindowX11::Show(bool show)
 261 {
 262     if ( !wxWindowBase::Show(show) )
 263         return FALSE;
 264
 265     Window xwin = (Window) GetXWindow();
 266     Display *xdisp = (Display*) GetXDisplay();
 267     if (show)
 268     {
 269         XMapWindow(xdisp, xwin);
 270     }
 271     else
 272     {
 273         XUnmapWindow(xdisp, xwin);
 274     }
 275
 276     return TRUE;
 277 }
 278
 279 // Raise the window to the top of the Z order
 280 void wxWindowX11::Raise()
 281 {
 282     if (m_mainWidget)
 283         XRaiseWindow( wxGlobalDisplay(), (Window) m_mainWidget );
 284 }
 285
 286 // Lower the window to the bottom of the Z order
 287 void wxWindowX11::Lower()
 288 {
 289     if (m_mainWidget)
 290         XLowerWindow( wxGlobalDisplay(), (Window) m_mainWidget );
 291 }
 292
 293 void wxWindowX11::DoCaptureMouse()
 294 {
 295     g_captureWindow = (wxWindow*) this;
 296     if ( m_winCaptured )
 297         return;
 298
 299     if (GetMainWindow())
 300     {
 301         int res = XGrabPointer(wxGlobalDisplay(), (Window) GetMainWindow(),
 302             FALSE,
 303             ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask,
 304             GrabModeAsync,
 305                 GrabModeAsync,
 306             None,
 307             None, /* cursor */ // TODO: This may need to be set to the cursor of this window
 308             CurrentTime);
 309
 310         if (res != GrabSuccess)
 311         {
 312             wxLogDebug("Failed to grab pointer.");
 313             return;
 314         }
 315
 316         res = XGrabButton(wxGlobalDisplay(), AnyButton, AnyModifier,
 317             (Window) GetMainWindow(),
 318             FALSE,
 319             ButtonPressMask | ButtonReleaseMask | ButtonMotionMask,
 320                 GrabModeAsync,
 321                 GrabModeAsync,
 322             None,
 323             None);
 324
 325         if (res != GrabSuccess)
 326         {
 327             wxLogDebug("Failed to grab mouse buttons.");
 328             XUngrabPointer(wxGlobalDisplay(), CurrentTime);
 329             return;
 330         }
 331
 332         res = XGrabKeyboard(wxGlobalDisplay(), (Window) GetMainWindow(),
 333 #if 0
 334             ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask,
 335 #else
 336             FALSE,
 337 #endif
 338             GrabModeAsync,
 339                 GrabModeAsync,
 340             CurrentTime);
 341
 342         if (res != GrabSuccess)
 343         {
 344             wxLogDebug("Failed to grab keyboard.");
 345             XUngrabPointer(wxGlobalDisplay(), CurrentTime);
 346             XUngrabButton(wxGlobalDisplay(), AnyButton, AnyModifier,
 347                 (Window) GetMainWindow());
 348             return;
 349         }
 350
 351         m_winCaptured = TRUE;
 352     }
 353 }
 354
 355 void wxWindowX11::DoReleaseMouse()
 356 {
 357     g_captureWindow = NULL;
 358     if ( !m_winCaptured )
 359         return;
 360
 361     Window wMain = (Window)GetMainWindow();
 362
 363     if ( wMain )
 364     {
 365         XUngrabPointer(wxGlobalDisplay(), wMain);
 366         XUngrabButton(wxGlobalDisplay(), AnyButton, AnyModifier,
 367                 wMain);
 368         XUngrabKeyboard(wxGlobalDisplay(), CurrentTime);
 369     }
 370
 371     m_winCaptured = FALSE;
 372 }
 373
 374 bool wxWindowX11::SetFont(const wxFont& font)
 375 {
 376     if ( !wxWindowBase::SetFont(font) )
 377     {
 378         // nothing to do
 379         return FALSE;
 380     }
 381
 382     return TRUE;
 383 }
 384
 385 bool wxWindowX11::SetCursor(const wxCursor& cursor)
 386 {
 387     if ( !wxWindowBase::SetCursor(cursor) )
 388     {
 389         // no change
 390         return FALSE;
 391     }
 392
 393     wxCursor* cursor2 = NULL;
 394     if (m_cursor.Ok())
 395         cursor2 = & m_cursor;
 396     else
 397         cursor2 = wxSTANDARD_CURSOR;
 398
 399     WXDisplay *dpy = GetXDisplay();
 400     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 401
 402     Window win = (Window) GetMainWindow();
 403     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 404
 405     return TRUE;
 406 }
 407
 408 // Coordinates relative to the window
 409 void wxWindowX11::WarpPointer (int x, int y)
 410 {
 411     if (m_mainWidget)
 412         XWarpPointer( wxGlobalDisplay(), None, (Window) m_mainWidget, 0, 0, 0, 0, x, y);
 413 }
 414
 415 // Does a physical scroll
 416 void wxWindowX11::ScrollWindow(int dx, int dy, const wxRect *rect)
 417 {
 418 #if 0
 419     int x, y, w, h;
 420     if (rect)
 421     {
 422         // Use specified rectangle
 423         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 424     }
 425     else
 426     {
 427         // Use whole client area
 428         x = 0; y = 0;
 429         GetClientSize(& w, & h);
 430     }
 431
 432     wxNode *cnode = m_children.First();
 433     while (cnode)
 434     {
 435         wxWindow *child = (wxWindow*) cnode->Data();
 436         int sx = 0;
 437         int sy = 0;
 438         child->GetSize( &sx, &sy );
 439         wxPoint pos( child->GetPosition() );
 440         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 441         cnode = cnode->Next();
 442     }
 443
 444     int x1 = (dx >= 0) ? x : x - dx;
 445     int y1 = (dy >= 0) ? y : y - dy;
 446     int w1 = w - abs(dx);
 447     int h1 = h - abs(dy);
 448     int x2 = (dx >= 0) ? x + dx : x;
 449     int y2 = (dy >= 0) ? y + dy : y;
 450
 451     wxClientDC dc((wxWindow*) this);
 452
 453     dc.SetLogicalFunction (wxCOPY);
 454
 455     Window window = (Window) GetMainWindow();
 456     Display* display = wxGlobalDisplay();
 457
 458     XCopyArea(display, window, window, (GC) dc.GetGC(),
 459         x1, y1, w1, h1, x2, y2);
 460
 461     dc.SetAutoSetting(TRUE);
 462     wxBrush brush(GetBackgroundColour(), wxSOLID);
 463     dc.SetBrush(brush); // FIXME: needed?
 464
 465     // We'll add rectangles to the list of update rectangles according to which
 466     // bits we've exposed.
 467     wxList updateRects;
 468
 469     if (dx > 0)
 470     {
 471         wxRect *rect = new wxRect;
 472         rect->x = x;
 473         rect->y = y;
 474         rect->width = dx;
 475         rect->height = h;
 476
 477         XFillRectangle(display, window,
 478             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 479
 480         rect->x = rect->x;
 481         rect->y = rect->y;
 482         rect->width = rect->width;
 483         rect->height = rect->height;
 484
 485         updateRects.Append((wxObject*) rect);
 486     }
 487     else if (dx < 0)
 488     {
 489         wxRect *rect = new wxRect;
 490
 491         rect->x = x + w + dx;
 492         rect->y = y;
 493         rect->width = -dx;
 494         rect->height = h;
 495
 496         XFillRectangle(display, window,
 497             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 498             rect->height);
 499
 500         rect->x = rect->x;
 501         rect->y = rect->y;
 502         rect->width = rect->width;
 503         rect->height = rect->height;
 504
 505         updateRects.Append((wxObject*) rect);
 506     }
 507     if (dy > 0)
 508     {
 509         wxRect *rect = new wxRect;
 510
 511         rect->x = x;
 512         rect->y = y;
 513         rect->width = w;
 514         rect->height = dy;
 515
 516         XFillRectangle(display, window,
 517             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 518
 519         rect->x = rect->x;
 520         rect->y = rect->y;
 521         rect->width = rect->width;
 522         rect->height = rect->height;
 523
 524         updateRects.Append((wxObject*) rect);
 525     }
 526     else if (dy < 0)
 527     {
 528         wxRect *rect = new wxRect;
 529
 530         rect->x = x;
 531         rect->y = y + h + dy;
 532         rect->width = w;
 533         rect->height = -dy;
 534
 535         XFillRectangle(display, window,
 536             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 537
 538         rect->x = rect->x;
 539         rect->y = rect->y;
 540         rect->width = rect->width;
 541         rect->height = rect->height;
 542
 543         updateRects.Append((wxObject*) rect);
 544     }
 545     dc.SetBrush(wxNullBrush);
 546
 547     // Now send expose events
 548
 549     wxNode* node = updateRects.First();
 550     while (node)
 551     {
 552         wxRect* rect = (wxRect*) node->Data();
 553         XExposeEvent event;
 554
 555         event.type = Expose;
 556         event.display = display;
 557         event.send_event = True;
 558         event.window = window;
 559
 560         event.x = rect->x;
 561         event.y = rect->y;
 562         event.width = rect->width;
 563         event.height = rect->height;
 564
 565         event.count = 0;
 566
 567         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
 568
 569         node = node->Next();
 570
 571     }
 572
 573     // Delete the update rects
 574     node = updateRects.First();
 575     while (node)
 576     {
 577         wxRect* rect = (wxRect*) node->Data();
 578         delete rect;
 579         node = node->Next();
 580     }
 581 #endif
 582 }
 583
 584 // ---------------------------------------------------------------------------
 585 // drag and drop
 586 // ---------------------------------------------------------------------------
 587
 588 #if wxUSE_DRAG_AND_DROP
 589
 590 void wxWindowX11::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
 591 {
 592     // TODO
 593 }
 594
 595 #endif
 596
 597 // Old style file-manager drag&drop
 598 void wxWindowX11::DragAcceptFiles(bool WXUNUSED(accept))
 599 {
 600     // TODO
 601 }
 602
 603 // ----------------------------------------------------------------------------
 604 // tooltips
 605 // ----------------------------------------------------------------------------
 606
 607 #if wxUSE_TOOLTIPS
 608
 609 void wxWindowX11::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
 610 {
 611     // TODO
 612 }
 613
 614 #endif // wxUSE_TOOLTIPS
 615
 616 // ---------------------------------------------------------------------------
 617 // moving and resizing
 618 // ---------------------------------------------------------------------------
 619
 620 bool wxWindowX11::PreResize()
 621 {
 622     return TRUE;
 623 }
 624
 625 // Get total size
 626 void wxWindowX11::DoGetSize(int *x, int *y) const
 627 {
 628     Window window = (Window) m_mainWidget;
 629     if (window)
 630     {
 631         XWindowAttributes attr;
 632         Status status = XGetWindowAttributes(wxGlobalDisplay(), window, & attr);
 633         wxASSERT(status);
 634
 635         if (status)
 636         {
 637             *x = attr.width /* + 2*m_borderSize */ ;
 638             *y = attr.height /* + 2*m_borderSize */ ;
 639         }
 640     }
 641 }
 642
 643 void wxWindowX11::DoGetPosition(int *x, int *y) const
 644 {
 645     Window window = (Window) m_mainWidget;
 646     if (window)
 647     {
 648         XWindowAttributes attr;
 649         Status status = XGetWindowAttributes(wxGlobalDisplay(), window, & attr);
 650         wxASSERT(status);
 651
 652         if (status)
 653         {
 654             *x = attr.x;
 655             *y = attr.y;
 656
 657             // We may be faking the client origin. So a window that's really at (0, 30)
 658             // may appear (to wxWin apps) to be at (0, 0).
 659             if (GetParent())
 660             {
 661                 wxPoint pt(GetParent()->GetClientAreaOrigin());
 662                 *x -= pt.x;
 663                 *y -= pt.y;
 664             }
 665         }
 666     }
 667 }
 668
 669 void wxWindowX11::DoScreenToClient(int *x, int *y) const
 670 {
 671     Display *display = wxGlobalDisplay();
 672     Window rootWindow = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 673     Window thisWindow = (Window) m_mainWidget;
 674
 675     Window childWindow;
 676     int xx = *x;
 677     int yy = *y;
 678     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
 679 }
 680
 681 void wxWindowX11::DoClientToScreen(int *x, int *y) const
 682 {
 683     Display *display = wxGlobalDisplay();
 684     Window rootWindow = RootWindowOfScreen(DefaultScreenOfDisplay(display));
 685     Window thisWindow = (Window) m_mainWidget;
 686
 687     Window childWindow;
 688     int xx = *x;
 689     int yy = *y;
 690     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
 691 }
 692
 693
 694 // Get size *available for subwindows* i.e. excluding menu bar etc.
 695 void wxWindowX11::DoGetClientSize(int *x, int *y) const
 696 {
 697     Window window = (Window) m_mainWidget;
 698
 699     if (window)
 700     {
 701         XWindowAttributes attr;
 702         Status status = XGetWindowAttributes( wxGlobalDisplay(), window, &attr );
 703         wxASSERT(status);
 704
 705         if (status)
 706         {
 707             *x = attr.width ;
 708             *y = attr.height ;
 709         }
 710     }
 711 }
 712
 713 void wxWindowX11::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 714 {
 715     if (!GetMainWindow())
 716         return;
 717
 718     XWindowChanges windowChanges;
 719     int valueMask = 0;
 720
 721     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 722     {
 723         int yy = 0;
 724         AdjustForParentClientOrigin( x, yy, sizeFlags);
 725         windowChanges.x = x;
 726         valueMask |= CWX;
 727     }
 728     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 729     {
 730         int xx = 0;
 731         AdjustForParentClientOrigin( xx, y, sizeFlags);
 732         windowChanges.y = y;
 733         valueMask |= CWY;
 734     }
 735     if (width != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 736     {
 737         windowChanges.width = width /* - m_borderSize*2 */;
 738         valueMask |= CWWidth;
 739     }
 740     if (height != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 741     {
 742         windowChanges.height = height /* -m_borderSize*2*/;
 743         valueMask |= CWHeight;
 744     }
 745
 746     XConfigureWindow(wxGlobalDisplay(), (Window) GetMainWindow(),
 747         valueMask, & windowChanges);
 748 }
 749
 750 void wxWindowX11::DoSetClientSize(int width, int height)
 751 {
 752     if (!GetMainWindow())
 753         return;
 754
 755     XWindowChanges windowChanges;
 756     int valueMask = 0;
 757
 758     if (width != -1)
 759     {
 760         windowChanges.width = width ;
 761         valueMask |= CWWidth;
 762     }
 763     if (height != -1)
 764     {
 765         windowChanges.height = height ;
 766         valueMask |= CWHeight;
 767     }
 768     XConfigureWindow(wxGlobalDisplay(), (Window) GetMainWindow(),
 769         valueMask, & windowChanges);
 770 }
 771
 772 // For implementation purposes - sometimes decorations make the client area
 773 // smaller
 774 wxPoint wxWindowX11::GetClientAreaOrigin() const
 775 {
 776     return wxPoint(0, 0);
 777 }
 778
 779 // Makes an adjustment to the window position (for example, a frame that has
 780 // a toolbar that it manages itself).
 781 void wxWindowX11::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags)
 782 {
 783     if (((sizeFlags & wxSIZE_NO_ADJUSTMENTS) == 0) && GetParent())
 784     {
 785         wxPoint pt(GetParent()->GetClientAreaOrigin());
 786         x += pt.x; y += pt.y;
 787     }
 788 }
 789
 790 void wxWindowX11::SetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH)
 791 {
 792     m_minWidth = minW;
 793     m_minHeight = minH;
 794     m_maxWidth = maxW;
 795     m_maxHeight = maxH;
 796
 797     XSizeHints sizeHints;
 798     sizeHints.flags = 0;
 799
 800     if (minW > -1 && minH > -1)
 801     {
 802         sizeHints.flags |= PMinSize;
 803         sizeHints.min_width = minW;
 804         sizeHints.min_height = minH;
 805     }
 806     if (maxW > -1 && maxH > -1)
 807     {
 808         sizeHints.flags |= PMaxSize;
 809         sizeHints.max_width = maxW;
 810         sizeHints.max_height = maxH;
 811     }
 812     if (incW > -1 && incH > -1)
 813     {
 814         sizeHints.flags |= PResizeInc;
 815         sizeHints.width_inc = incW;
 816         sizeHints.height_inc = incH;
 817     }
 818
 819     XSetWMNormalHints(wxGlobalDisplay(), (Window) GetMainWindow(), & sizeHints);
 820 }
 821
 822 void wxWindowX11::DoMoveWindow(int x, int y, int width, int height)
 823 {
 824     DoSetSize(x, y, width, height);
 825 }
 826
 827 // ---------------------------------------------------------------------------
 828 // text metrics
 829 // ---------------------------------------------------------------------------
 830
 831 int wxWindowX11::GetCharHeight() const
 832 {
 833     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
 834
 835     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
 836
 837     int direction, ascent, descent;
 838     XCharStruct overall;
 839     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
 840         &descent, &overall);
 841
 842     //  return (overall.ascent + overall.descent);
 843     return (ascent + descent);
 844 }
 845
 846 int wxWindowX11::GetCharWidth() const
 847 {
 848     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
 849
 850     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
 851
 852     int direction, ascent, descent;
 853     XCharStruct overall;
 854     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
 855         &descent, &overall);
 856
 857     return overall.width;
 858 }
 859
 860 void wxWindowX11::GetTextExtent(const wxString& string,
 861                              int *x, int *y,
 862                              int *descent, int *externalLeading,
 863                              const wxFont *theFont) const
 864 {
 865     wxFont *fontToUse = (wxFont *)theFont;
 866     if (!fontToUse)
 867         fontToUse = (wxFont *) & m_font;
 868
 869     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
 870
 871     WXFontStructPtr pFontStruct = theFont->GetFontStruct(1.0, GetXDisplay());
 872
 873     int direction, ascent, descent2;
 874     XCharStruct overall;
 875     int slen = string.Len();
 876
 877 #if 0
 878     if (use16)
 879         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
 880         &ascent, &descent2, &overall);
 881 #endif
 882
 883     XTextExtents((XFontStruct*) pFontStruct, string, slen,
 884                  &direction, &ascent, &descent2, &overall);
 885
 886     if ( x )
 887         *x = (overall.width);
 888     if ( y )
 889         *y = (ascent + descent2);
 890     if (descent)
 891         *descent = descent2;
 892     if (externalLeading)
 893         *externalLeading = 0;
 894
 895 }
 896
 897 // ----------------------------------------------------------------------------
 898 // painting
 899 // ----------------------------------------------------------------------------
 900
 901 void wxWindowX11::Refresh(bool eraseBack, const wxRect *rect)
 902 {
 903     if (eraseBack)
 904     {
 905         if (rect)
 906         {
 907             // Schedule for later Updating in ::Update() or ::OnInternalIdle().
 908             m_clearRegion.Union( rect->x, rect->y, rect->width, rect->height );
 909         }
 910         else
 911         {
 912             int height,width;
 913             GetSize( &width, &height );
 914
 915             // Schedule for later Updating in ::Update() or ::OnInternalIdle().
 916             m_clearRegion.Clear();
 917             m_clearRegion.Union( 0, 0, width, height );
 918         }
 919     }
 920
 921     if (rect)
 922     {
 923          // Schedule for later Updating in ::Update() or ::OnInternalIdle().
 924          m_updateRegion.Union( rect->x, rect->y, rect->width, rect->height );
 925     }
 926     else
 927     {
 928        int height,width;
 929        GetSize( &width, &height );
 930
 931         // Schedule for later Updating in ::Update() or ::OnInternalIdle().
 932         m_updateRegion.Clear();
 933         m_updateRegion.Union( 0, 0, width, height );
 934     }
 935
 936     // Actually don't schedule yet..
 937     Update();
 938 }
 939
 940 void wxWindowX11::Update()
 941 {
 942     if (!m_updateRegion.IsEmpty())
 943     {
 944         X11SendPaintEvents();
 945     }
 946 }
 947
 948 void wxWindowX11::Clear()
 949 {
 950     wxClientDC dc((wxWindow*) this);
 951     wxBrush brush(GetBackgroundColour(), wxSOLID);
 952     dc.SetBackground(brush);
 953     dc.Clear();
 954 }
 955
 956 void wxWindowX11::X11SendPaintEvents()
 957 {
 958     m_clipPaintRegion = TRUE;
 959
 960     //    if (!m_clearRegion.IsEmpty())
 961     {
 962         wxWindowDC dc( (wxWindow*)this );
 963         dc.SetClippingRegion( m_clearRegion );
 964
 965         wxEraseEvent erase_event( GetId(), &dc );
 966         erase_event.SetEventObject( this );
 967
 968         if (!GetEventHandler()->ProcessEvent(erase_event))
 969         {
 970             wxRegionIterator upd( m_clearRegion );
 971             while (upd)
 972             {
 973                 XClearArea( wxGlobalDisplay(), (Window) m_mainWidget,
 974                             upd.GetX(), upd.GetY(), upd.GetWidth(), upd.GetHeight(), False );
 975                 upd ++;
 976             }
 977         }
 978         m_clearRegion.Clear();
 979     }
 980
 981     wxNcPaintEvent nc_paint_event( GetId() );
 982     nc_paint_event.SetEventObject( this );
 983     GetEventHandler()->ProcessEvent( nc_paint_event );
 984
 985     wxPaintEvent paint_event( GetId() );
 986     paint_event.SetEventObject( this );
 987     GetEventHandler()->ProcessEvent( paint_event );
 988
 989     m_clipPaintRegion = FALSE;
 990 }
 991
 992 // ----------------------------------------------------------------------------
 993 // event handlers
 994 // ----------------------------------------------------------------------------
 995
 996 // Responds to colour changes: passes event on to children.
 997 void wxWindowX11::OnSysColourChanged(wxSysColourChangedEvent& event)
 998 {
 999     wxWindowList::Node *node = GetChildren().GetFirst();
1000     while ( node )
1001     {
1002         // Only propagate to non-top-level windows
1003         wxWindow *win = node->GetData();
1004         if ( win->GetParent() )
1005         {
1006             wxSysColourChangedEvent event2;
1007             event.m_eventObject = win;
1008             win->GetEventHandler()->ProcessEvent(event2);
1009         }
1010
1011         node = node->GetNext();
1012     }
1013 }
1014
1015 void wxWindowX11::OnIdle(wxIdleEvent& WXUNUSED(event))
1016 {
1017     // This calls the UI-update mechanism (querying windows for
1018     // menu/toolbar/control state information)
1019     UpdateWindowUI();
1020 }
1021
1022 // ----------------------------------------------------------------------------
1023 // function which maintain the global hash table mapping Widgets to wxWindows
1024 // ----------------------------------------------------------------------------
1025
1026 bool wxAddWindowToTable(Window w, wxWindow *win)
1027 {
1028     wxWindow *oldItem = NULL;
1029     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1030     {
1031         wxLogDebug("Widget table clash: new widget is %ld, %s",
1032                    (long)w, win->GetClassInfo()->GetClassName());
1033         return FALSE;
1034     }
1035
1036     wxWidgetHashTable->Put((long) w, win);
1037
1038     wxLogTrace("widget", "XWindow 0x%08x <-> window %p (%s)",
1039                w, win, win->GetClassInfo()->GetClassName());
1040
1041     return TRUE;
1042 }
1043
1044 wxWindow *wxGetWindowFromTable(Window w)
1045 {
1046     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1047 }
1048
1049 void wxDeleteWindowFromTable(Window w)
1050 {
1051     wxWidgetHashTable->Delete((long)w);
1052 }
1053
1054 // ----------------------------------------------------------------------------
1055 // add/remove window from the table
1056 // ----------------------------------------------------------------------------
1057
1058 // ----------------------------------------------------------------------------
1059 // X11-specific accessors
1060 // ----------------------------------------------------------------------------
1061
1062 // Get the underlying X window
1063 WXWindow wxWindowX11::GetXWindow() const
1064 {
1065     return GetMainWindow();
1066 }
1067
1068 // Get the underlying X display
1069 WXDisplay *wxWindowX11::GetXDisplay() const
1070 {
1071     return wxGetDisplay();
1072 }
1073
1074 WXWindow wxWindowX11::GetMainWindow() const
1075 {
1076     return m_mainWidget;
1077 }
1078
1079 // ----------------------------------------------------------------------------
1080 // TranslateXXXEvent() functions
1081 // ----------------------------------------------------------------------------
1082
1083 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win, Window window, XEvent *xevent)
1084 {
1085     switch (xevent->xany.type)
1086     {
1087         case EnterNotify:
1088         case LeaveNotify:
1089         case ButtonPress:
1090         case ButtonRelease:
1091         case MotionNotify:
1092         {
1093             wxEventType eventType = wxEVT_NULL;
1094
1095             if (xevent->xany.type == EnterNotify)
1096             {
1097                 //if (local_event.xcrossing.mode!=NotifyNormal)
1098                 //  return ; // Ignore grab events
1099                 eventType = wxEVT_ENTER_WINDOW;
1100                 //            canvas->GetEventHandler()->OnSetFocus();
1101             }
1102             else if (xevent->xany.type == LeaveNotify)
1103             {
1104                 //if (local_event.xcrossingr.mode!=NotifyNormal)
1105                 //  return ; // Ignore grab events
1106                 eventType = wxEVT_LEAVE_WINDOW;
1107                 //            canvas->GetEventHandler()->OnKillFocus();
1108             }
1109             else if (xevent->xany.type == MotionNotify)
1110             {
1111                 eventType = wxEVT_MOTION;
1112             }
1113             else if (xevent->xany.type == ButtonPress)
1114             {
1115                 wxevent.SetTimestamp(xevent->xbutton.time);
1116                 int button = 0;
1117                 if (xevent->xbutton.button == Button1)
1118                 {
1119                     eventType = wxEVT_LEFT_DOWN;
1120                     button = 1;
1121                 }
1122                 else if (xevent->xbutton.button == Button2)
1123                 {
1124                     eventType = wxEVT_MIDDLE_DOWN;
1125                     button = 2;
1126                 }
1127                 else if (xevent->xbutton.button == Button3)
1128                 {
1129                     eventType = wxEVT_RIGHT_DOWN;
1130                     button = 3;
1131                 }
1132
1133                 // check for a double click
1134                 // TODO: where can we get this value from?
1135                 //long dclickTime = XtGetMultiClickTime(wxGlobalDisplay());
1136                 long dclickTime = 200;
1137                 long ts = wxevent.GetTimestamp();
1138
1139                 int buttonLast = win->GetLastClickedButton();
1140                 long lastTS = win->GetLastClickTime();
1141                 if ( buttonLast && buttonLast == button && (ts - lastTS) < dclickTime )
1142                 {
1143                     // I have a dclick
1144                     win->SetLastClick(0, ts);
1145                     if ( eventType == wxEVT_LEFT_DOWN )
1146                         eventType = wxEVT_LEFT_DCLICK;
1147                     else if ( eventType == wxEVT_MIDDLE_DOWN )
1148                         eventType = wxEVT_MIDDLE_DCLICK;
1149                     else if ( eventType == wxEVT_RIGHT_DOWN )
1150                         eventType = wxEVT_RIGHT_DCLICK;
1151                 }
1152                 else
1153                 {
1154                     // not fast enough or different button
1155                     win->SetLastClick(button, ts);
1156                 }
1157             }
1158             else if (xevent->xany.type == ButtonRelease)
1159             {
1160                 if (xevent->xbutton.button == Button1)
1161                 {
1162                     eventType = wxEVT_LEFT_UP;
1163                 }
1164                 else if (xevent->xbutton.button == Button2)
1165                 {
1166                     eventType = wxEVT_MIDDLE_UP;
1167                 }
1168                 else if (xevent->xbutton.button == Button3)
1169                 {
1170                     eventType = wxEVT_RIGHT_UP;
1171                 }
1172                 else return FALSE;
1173             }
1174             else
1175             {
1176                 return FALSE;
1177             }
1178
1179             wxevent.SetEventType(eventType);
1180
1181             wxevent.m_x = xevent->xbutton.x;
1182             wxevent.m_y = xevent->xbutton.y;
1183
1184             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
1185                 || (event_left_is_down (xevent)
1186                 && (eventType != wxEVT_LEFT_UP)));
1187             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
1188                 || (event_middle_is_down (xevent)
1189                 && (eventType != wxEVT_MIDDLE_UP)));
1190             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
1191                 || (event_right_is_down (xevent)
1192                 && (eventType != wxEVT_RIGHT_UP)));
1193
1194             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
1195             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
1196             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
1197             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
1198
1199             wxevent.SetId(win->GetId());
1200             wxevent.SetEventObject(win);
1201
1202             return TRUE;
1203         }
1204     }
1205     return FALSE;
1206 }
1207
1208 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win, Window WXUNUSED(win), XEvent *xevent)
1209 {
1210     switch (xevent->xany.type)
1211     {
1212     case KeyPress:
1213     case KeyRelease:
1214         {
1215             char buf[20];
1216
1217             KeySym keySym;
1218             (void) XLookupString ((XKeyEvent *) xevent, buf, 20, &keySym, NULL);
1219             int id = wxCharCodeXToWX (keySym);
1220
1221             if (xevent->xkey.state & ShiftMask)
1222                 wxevent.m_shiftDown = TRUE;
1223             if (xevent->xkey.state & ControlMask)
1224                 wxevent.m_controlDown = TRUE;
1225             if (xevent->xkey.state & Mod3Mask)
1226                 wxevent.m_altDown = TRUE;
1227             if (xevent->xkey.state & Mod1Mask)
1228                 wxevent.m_metaDown = TRUE;
1229             wxevent.SetEventObject(win);
1230             wxevent.m_keyCode = id;
1231             wxevent.SetTimestamp(xevent->xkey.time);
1232
1233             wxevent.m_x = xevent->xbutton.x;
1234             wxevent.m_y = xevent->xbutton.y;
1235
1236             if (id > -1)
1237                 return TRUE;
1238             else
1239                 return FALSE;
1240             break;
1241         }
1242     default:
1243         break;
1244     }
1245     return FALSE;
1246 }
1247
1248 // ----------------------------------------------------------------------------
1249 // Colour stuff
1250 // ----------------------------------------------------------------------------
1251
1252 #if 0
1253
1254 #define YAllocColor XAllocColor
1255 XColor g_itemColors[5];
1256 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
1257 {
1258     int result;
1259     static XmColorProc colorProc;
1260
1261     result = wxNO_COLORS;
1262
1263     if (back)
1264     {
1265         g_itemColors[0].red = (((long) back->Red ()) << 8);
1266         g_itemColors[0].green = (((long) back->Green ()) << 8);
1267         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
1268         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
1269         if (colorProc == (XmColorProc) NULL)
1270         {
1271             // Get a ptr to the actual function
1272             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
1273             // And set it back to motif.
1274             XmSetColorCalculation (colorProc);
1275         }
1276         (*colorProc) (&g_itemColors[wxBACK_INDEX],
1277             &g_itemColors[wxFORE_INDEX],
1278             &g_itemColors[wxSELE_INDEX],
1279             &g_itemColors[wxTOPS_INDEX],
1280             &g_itemColors[wxBOTS_INDEX]);
1281         result = wxBACK_COLORS;
1282     }
1283     if (fore)
1284     {
1285         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
1286         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
1287         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
1288         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
1289         if (result == wxNO_COLORS)
1290             result = wxFORE_COLORS;
1291     }
1292
1293     Display *dpy = display;
1294     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
1295
1296     if (back)
1297     {
1298         /* 5 Colours to allocate */
1299         for (int i = 0; i < 5; i++)
1300             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
1301                 result = wxNO_COLORS;
1302     }
1303     else if (fore)
1304     {
1305         /* Only 1 colour to allocate */
1306         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
1307             result = wxNO_COLORS;
1308     }
1309
1310     return (result);
1311
1312 }
1313 #endif
1314
1315 bool wxWindowX11::SetBackgroundColour(const wxColour& col)
1316 {
1317     wxWindowBase::SetBackgroundColour(col);
1318
1319     if (!GetMainWindow())
1320         return FALSE;
1321
1322     Display *xdisplay = (Display*) wxGlobalDisplay();
1323     int xscreen = DefaultScreen( xdisplay );
1324     Colormap cm = DefaultColormap( xdisplay, xscreen );
1325
1326     wxColour colour( col );
1327     colour.CalcPixel( (WXColormap) cm );
1328
1329     XSetWindowAttributes attrib;
1330     attrib.background_pixel = colour.GetPixel();
1331
1332     XChangeWindowAttributes(wxGlobalDisplay(),
1333         (Window) GetMainWindow(),
1334         CWBackPixel,
1335         & attrib);
1336
1337     return TRUE;
1338 }
1339
1340 bool wxWindowX11::SetForegroundColour(const wxColour& col)
1341 {
1342     if ( !wxWindowBase::SetForegroundColour(col) )
1343         return FALSE;
1344
1345     return TRUE;
1346 }
1347
1348 // ----------------------------------------------------------------------------
1349 // global functions
1350 // ----------------------------------------------------------------------------
1351
1352 wxWindow *wxGetActiveWindow()
1353 {
1354     // TODO
1355     wxFAIL_MSG("Not implemented");
1356     return NULL;
1357 }
1358
1359 /* static */
1360 wxWindow *wxWindowBase::GetCapture()
1361 {
1362     return (wxWindow *)g_captureWindow;
1363 }
1364
1365
1366 // Find the wxWindow at the current mouse position, returning the mouse
1367 // position.
1368 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
1369 {
1370     return wxFindWindowAtPoint(wxGetMousePosition());
1371 }
1372
1373 // Get the current mouse position.
1374 wxPoint wxGetMousePosition()
1375 {
1376     Display *display = wxGlobalDisplay();
1377     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
1378     Window rootReturn, childReturn;
1379     int rootX, rootY, winX, winY;
1380     unsigned int maskReturn;
1381
1382     XQueryPointer (display,
1383                    rootWindow,
1384                    &rootReturn,
1385                    &childReturn,
1386                    &rootX, &rootY, &winX, &winY, &maskReturn);
1387     return wxPoint(rootX, rootY);
1388 }
1389
1390
1391 // ----------------------------------------------------------------------------
1392 // wxNoOptimize: switch off size optimization
1393 // ----------------------------------------------------------------------------
1394
1395 int wxNoOptimize::ms_count = 0;
1396