src/gtk1/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/window.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Julian Smart
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __VMS
  14 #define XWarpPointer XWARPPOINTER
  15 #endif
  16
  17 #include "wx/window.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/intl.h"
  21     #include "wx/log.h"
  22     #include "wx/app.h"
  23     #include "wx/utils.h"
  24     #include "wx/frame.h"
  25     #include "wx/dcclient.h"
  26     #include "wx/menu.h"
  27     #include "wx/dialog.h"
  28     #include "wx/settings.h"
  29     #include "wx/msgdlg.h"
  30     #include "wx/textctrl.h"
  31     #include "wx/combobox.h"
  32     #include "wx/layout.h"
  33     #include "wx/statusbr.h"
  34     #include "wx/math.h"
  35     #include "wx/module.h"
  36 #endif
  37
  38 #if wxUSE_DRAG_AND_DROP
  39     #include "wx/dnd.h"
  40 #endif
  41
  42 #if wxUSE_TOOLTIPS
  43     #include "wx/tooltip.h"
  44 #endif
  45
  46 #if wxUSE_CARET
  47     #include "wx/caret.h"
  48 #endif // wxUSE_CARET
  49
  50 #include "wx/fontutil.h"
  51
  52 #if wxDEBUG_LEVEL
  53     #include "wx/thread.h"
  54 #endif
  55
  56 #include <ctype.h>
  57
  58 #include "wx/gtk1/private.h"
  59 #include <gdk/gdkprivate.h>
  60 #include <gdk/gdkkeysyms.h>
  61 #include <gdk/gdkx.h>
  62
  63 #include <gtk/gtk.h>
  64 #include <gtk/gtkprivate.h>
  65
  66 #include "wx/gtk1/win_gtk.h"
  67
  68 //-----------------------------------------------------------------------------
  69 // documentation on internals
  70 //-----------------------------------------------------------------------------
  71
  72 /*
  73    I have been asked several times about writing some documentation about
  74    the GTK port of wxWidgets, especially its internal structures. Obviously,
  75    you cannot understand wxGTK without knowing a little about the GTK, but
  76    some more information about what the wxWindow, which is the base class
  77    for all other window classes, does seems required as well.
  78
  79    I)
  80
  81    What does wxWindow do? It contains the common interface for the following
  82    jobs of its descendants:
  83
  84    1) Define the rudimentary behaviour common to all window classes, such as
  85    resizing, intercepting user input (so as to make it possible to use these
  86    events for special purposes in a derived class), window names etc.
  87
  88    2) Provide the possibility to contain and manage children, if the derived
  89    class is allowed to contain children, which holds true for those window
  90    classes which do not display a native GTK widget. To name them, these
  91    classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
  92    work classes are a special case and are handled a bit differently from
  93    the rest. The same holds true for the wxNotebook class.
  94
  95    3) Provide the possibility to draw into a client area of a window. This,
  96    too, only holds true for classes that do not display a native GTK widget
  97    as above.
  98
  99    4) Provide the entire mechanism for scrolling widgets. This actual inter-
 100    face for this is usually in wxScrolledWindow, but the GTK implementation
 101    is in this class.
 102
 103    5) A multitude of helper or extra methods for special purposes, such as
 104    Drag'n'Drop, managing validators etc.
 105
 106    6) Display a border (sunken, raised, simple or none).
 107
 108    Normally one might expect, that one wxWidgets window would always correspond
 109    to one GTK widget. Under GTK, there is no such allround widget that has all
 110    the functionality. Moreover, the GTK defines a client area as a different
 111    widget from the actual widget you are handling. Last but not least some
 112    special classes (e.g. wxFrame) handle different categories of widgets and
 113    still have the possibility to draw something in the client area.
 114    It was therefore required to write a special purpose GTK widget, that would
 115    represent a client area in the sense of wxWidgets capable to do the jobs
 116    2), 3) and 4). I have written this class and it resides in win_gtk.c of
 117    this directory.
 118
 119    All windows must have a widget, with which they interact with other under-
 120    lying GTK widgets. It is this widget, e.g. that has to be resized etc and
 121    the wxWindow class has a member variable called m_widget which holds a
 122    pointer to this widget. When the window class represents a GTK native widget,
 123    this is (in most cases) the only GTK widget the class manages. E.g. the
 124    wxStaticText class handles only a GtkLabel widget a pointer to which you
 125    can find in m_widget (defined in wxWindow)
 126
 127    When the class has a client area for drawing into and for containing children
 128    it has to handle the client area widget (of the type GtkPizza, defined in
 129    win_gtk.c), but there could be any number of widgets, handled by a class
 130    The common rule for all windows is only, that the widget that interacts with
 131    the rest of GTK must be referenced in m_widget and all other widgets must be
 132    children of this widget on the GTK level. The top-most widget, which also
 133    represents the client area, must be in the m_wxwindow field and must be of
 134    the type GtkPizza.
 135
 136    As I said, the window classes that display a GTK native widget only have
 137    one widget, so in the case of e.g. the wxButton class m_widget holds a
 138    pointer to a GtkButton widget. But windows with client areas (for drawing
 139    and children) have a m_widget field that is a pointer to a GtkScrolled-
 140    Window and a m_wxwindow field that is pointer to a GtkPizza and this
 141    one is (in the GTK sense) a child of the GtkScrolledWindow.
 142
 143    If the m_wxwindow field is set, then all input to this widget is inter-
 144    cepted and sent to the wxWidgets class. If not, all input to the widget
 145    that gets pointed to by m_widget gets intercepted and sent to the class.
 146
 147    II)
 148
 149    The design of scrolling in wxWidgets is markedly different from that offered
 150    by the GTK itself and therefore we cannot simply take it as it is. In GTK,
 151    clicking on a scrollbar belonging to scrolled window will inevitably move
 152    the window. In wxWidgets, the scrollbar will only emit an event, send this
 153    to (normally) a wxScrolledWindow and that class will call ScrollWindow()
 154    which actually moves the window and its subchildren. Note that GtkPizza
 155    memorizes how much it has been scrolled but that wxWidgets forgets this
 156    so that the two coordinates systems have to be kept in synch. This is done
 157    in various places using the pizza->xoffset and pizza->yoffset values.
 158
 159    III)
 160
 161    Singularily the most broken code in GTK is the code that is supposed to
 162    inform subwindows (child windows) about new positions. Very often, duplicate
 163    events are sent without changes in size or position, equally often no
 164    events are sent at all (All this is due to a bug in the GtkContainer code
 165    which got fixed in GTK 1.2.6). For that reason, wxGTK completely ignores
 166    GTK's own system and it simply waits for size events for toplevel windows
 167    and then iterates down the respective size events to all window. This has
 168    the disadvantage that windows might get size events before the GTK widget
 169    actually has the reported size. This doesn't normally pose any problem, but
 170    the OpenGL drawing routines rely on correct behaviour. Therefore, I have
 171    added the m_nativeSizeEvents flag, which is true only for the OpenGL canvas,
 172    i.e. the wxGLCanvas will emit a size event, when (and not before) the X11
 173    window that is used for OpenGL output really has that size (as reported by
 174    GTK).
 175
 176    IV)
 177
 178    If someone at some point of time feels the immense desire to have a look at,
 179    change or attempt to optimise the Refresh() logic, this person will need an
 180    intimate understanding of what "draw" and "expose" events are and what
 181    they are used for, in particular when used in connection with GTK's
 182    own windowless widgets. Beware.
 183
 184    V)
 185
 186    Cursors, too, have been a constant source of pleasure. The main difficulty
 187    is that a GdkWindow inherits a cursor if the programmer sets a new cursor
 188    for the parent. To prevent this from doing too much harm, I use idle time
 189    to set the cursor over and over again, starting from the toplevel windows
 190    and ending with the youngest generation (speaking of parent and child windows).
 191    Also don't forget that cursors (like much else) are connected to GdkWindows,
 192    not GtkWidgets and that the "window" field of a GtkWidget might very well
 193    point to the GdkWindow of the parent widget (-> "window-less widget") and
 194    that the two obviously have very different meanings.
 195
 196 */
 197
 198 //-----------------------------------------------------------------------------
 199 // data
 200 //-----------------------------------------------------------------------------
 201
 202 extern bool       g_blockEventsOnDrag;
 203 extern bool       g_blockEventsOnScroll;
 204 extern wxCursor   g_globalCursor;
 205
 206 static GdkGC *g_eraseGC = NULL;
 207
 208 // mouse capture state: the window which has it and if the mouse is currently
 209 // inside it
 210 static wxWindowGTK  *g_captureWindow = NULL;
 211 static bool g_captureWindowHasMouse = false;
 212
 213 wxWindowGTK  *g_focusWindow = NULL;
 214
 215 // the last window which had the focus - this is normally never NULL (except
 216 // if we never had focus at all) as even when g_focusWindow is NULL it still
 217 // keeps its previous value
 218 wxWindowGTK *g_focusWindowLast = NULL;
 219
 220 // If a window get the focus set but has not been realized
 221 // yet, defer setting the focus to idle time.
 222 wxWindowGTK *g_delayedFocus = NULL;
 223
 224 // hack: we need something to pass to gtk_menu_popup, so we store the time of
 225 // the last click here (extern: used from gtk/menu.cpp)
 226 guint32 wxGtkTimeLastClick = 0;
 227
 228 // global variables because GTK+ DnD want to have the
 229 // mouse event that caused it
 230 GdkEvent *g_lastMouseEvent = NULL;
 231 int g_lastButtonNumber = 0;
 232
 233 extern bool g_mainThreadLocked;
 234
 235 //-----------------------------------------------------------------------------
 236 // debug
 237 //-----------------------------------------------------------------------------
 238
 239 #if wxUSE_THREADS
 240 #   define DEBUG_MAIN_THREAD \
 241         wxASSERT_MSG( !g_mainThreadLocked || !wxThread::IsMain(), \
 242                       "GUI reentrancy detected" );
 243 #else
 244 #   define DEBUG_MAIN_THREAD
 245 #endif
 246
 247 // the trace mask used for the focus debugging messages
 248 #define TRACE_FOCUS _T("focus")
 249
 250 //-----------------------------------------------------------------------------
 251 // missing gdk functions
 252 //-----------------------------------------------------------------------------
 253
 254 void
 255 gdk_window_warp_pointer (GdkWindow      *window,
 256                          gint            x,
 257                          gint            y)
 258 {
 259   GdkWindowPrivate *priv;
 260
 261   if (!window)
 262     window = GDK_ROOT_PARENT();
 263
 264   priv = (GdkWindowPrivate*) window;
 265
 266   if (!priv->destroyed)
 267   {
 268       XWarpPointer (priv->xdisplay,
 269                     None,              /* not source window -> move from anywhere */
 270                     priv->xwindow,  /* dest window */
 271                     0, 0, 0, 0,        /* not source window -> move from anywhere */
 272                     x, y );
 273   }
 274 }
 275
 276 //-----------------------------------------------------------------------------
 277 // idle system
 278 //-----------------------------------------------------------------------------
 279
 280 extern void wxapp_install_idle_handler();
 281 extern bool g_isIdle;
 282
 283 //-----------------------------------------------------------------------------
 284 // local code (see below)
 285 //-----------------------------------------------------------------------------
 286
 287 // returns the child of win which currently has focus or NULL if not found
 288 //
 289 // Note: can't be static, needed by textctrl.cpp.
 290 wxWindow *wxFindFocusedChild(wxWindowGTK *win)
 291 {
 292     wxWindow *winFocus = wxWindowGTK::FindFocus();
 293     if ( !winFocus )
 294         return NULL;
 295
 296     if ( winFocus == win )
 297         return (wxWindow *)win;
 298
 299     for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
 300           node;
 301           node = node->GetNext() )
 302     {
 303         wxWindow *child = wxFindFocusedChild(node->GetData());
 304         if ( child )
 305             return child;
 306     }
 307
 308     return NULL;
 309 }
 310
 311 static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
 312 {
 313     // wxUniversal widgets draw the borders and scrollbars themselves
 314 #ifndef __WXUNIVERSAL__
 315     if (!win->m_hasVMT)
 316         return;
 317
 318     int dw = 0;
 319     int dh = 0;
 320
 321     if (win->m_hasScrolling)
 322     {
 323         GtkScrolledWindow *scroll_window = GTK_SCROLLED_WINDOW(widget);
 324
 325         GtkRequisition vscroll_req;
 326         vscroll_req.width = 2;
 327         vscroll_req.height = 2;
 328         (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->vscrollbar) )->size_request )
 329             (scroll_window->vscrollbar, &vscroll_req );
 330
 331         GtkRequisition hscroll_req;
 332         hscroll_req.width = 2;
 333         hscroll_req.height = 2;
 334         (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->hscrollbar) )->size_request )
 335             (scroll_window->hscrollbar, &hscroll_req );
 336
 337         GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(widget) );
 338
 339         if (scroll_window->vscrollbar_visible)
 340         {
 341             dw += vscroll_req.width;
 342             dw += scroll_class->scrollbar_spacing;
 343         }
 344
 345         if (scroll_window->hscrollbar_visible)
 346         {
 347             dh += hscroll_req.height;
 348             dh += scroll_class->scrollbar_spacing;
 349         }
 350     }
 351
 352     int dx = 0;
 353     int dy = 0;
 354     if (GTK_WIDGET_NO_WINDOW (widget))
 355     {
 356         dx += widget->allocation.x;
 357         dy += widget->allocation.y;
 358     }
 359
 360     if (win->HasFlag(wxRAISED_BORDER))
 361     {
 362         gtk_draw_shadow( widget->style,
 363                          widget->window,
 364                          GTK_STATE_NORMAL,
 365                          GTK_SHADOW_OUT,
 366                          dx, dy,
 367                          widget->allocation.width-dw, widget->allocation.height-dh );
 368         return;
 369     }
 370
 371     if (win->HasFlag(wxSUNKEN_BORDER) || win->HasFlag(wxBORDER_THEME))
 372     {
 373         gtk_draw_shadow( widget->style,
 374                          widget->window,
 375                          GTK_STATE_NORMAL,
 376                          GTK_SHADOW_IN,
 377                          dx, dy,
 378                          widget->allocation.width-dw, widget->allocation.height-dh );
 379         return;
 380     }
 381
 382     if (win->HasFlag(wxSIMPLE_BORDER))
 383     {
 384         GdkGC *gc;
 385         gc = gdk_gc_new( widget->window );
 386         gdk_gc_set_foreground( gc, &widget->style->black );
 387         gdk_draw_rectangle( widget->window, gc, FALSE,
 388                          dx, dy,
 389                          widget->allocation.width-dw-1, widget->allocation.height-dh-1 );
 390         gdk_gc_unref( gc );
 391         return;
 392     }
 393 #endif // __WXUNIVERSAL__
 394 }
 395
 396 //-----------------------------------------------------------------------------
 397 // "expose_event" of m_widget
 398 //-----------------------------------------------------------------------------
 399
 400 extern "C" {
 401 static gint gtk_window_own_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_event, wxWindowGTK *win )
 402 {
 403     if (gdk_event->count > 0) return FALSE;
 404
 405     draw_frame( widget, win );
 406
 407     return TRUE;
 408 }
 409 }
 410
 411 //-----------------------------------------------------------------------------
 412 // "draw" of m_widget
 413 //-----------------------------------------------------------------------------
 414
 415 extern "C" {
 416 static void gtk_window_own_draw_callback( GtkWidget *widget, GdkRectangle *WXUNUSED(rect), wxWindowGTK *win )
 417 {
 418     draw_frame( widget, win );
 419 }
 420 }
 421
 422 //-----------------------------------------------------------------------------
 423 // "size_request" of m_widget
 424 //-----------------------------------------------------------------------------
 425
 426 // make it extern because wxStaticText needs to disconnect this one
 427 extern "C" {
 428 void wxgtk_window_size_request_callback(GtkWidget *WXUNUSED(widget),
 429                                         GtkRequisition *requisition,
 430                                         wxWindow *win)
 431 {
 432     int w, h;
 433     win->GetSize( &w, &h );
 434     if (w < 2)
 435         w = 2;
 436     if (h < 2)
 437         h = 2;
 438
 439     requisition->height = h;
 440     requisition->width = w;
 441 }
 442 }
 443
 444 extern "C" {
 445 static
 446 void wxgtk_combo_size_request_callback(GtkWidget *WXUNUSED(widget),
 447                                        GtkRequisition *requisition,
 448                                        wxComboBox *win)
 449 {
 450     // This callback is actually hooked into the text entry
 451     // of the combo box, not the GtkHBox.
 452
 453     int w, h;
 454     win->GetSize( &w, &h );
 455     if (w < 2)
 456         w = 2;
 457     if (h < 2)
 458         h = 2;
 459
 460     GtkCombo *gcombo = GTK_COMBO(win->m_widget);
 461
 462     GtkRequisition entry_req;
 463     entry_req.width = 2;
 464     entry_req.height = 2;
 465     (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(gcombo->button) )->size_request )
 466         (gcombo->button, &entry_req );
 467
 468     requisition->width = w - entry_req.width;
 469     requisition->height = entry_req.height;
 470 }
 471 }
 472
 473 //-----------------------------------------------------------------------------
 474 // "expose_event" of m_wxwindow
 475 //-----------------------------------------------------------------------------
 476
 477 extern "C" {
 478 static int gtk_window_expose_callback( GtkWidget *WXUNUSED(widget),
 479                                        GdkEventExpose *gdk_event,
 480                                        wxWindow *win )
 481 {
 482     DEBUG_MAIN_THREAD
 483
 484     if (g_isIdle)
 485         wxapp_install_idle_handler();
 486
 487     // This gets called immediately after an expose event
 488     // under GTK 1.2 so we collect the calls and wait for
 489     // the idle handler to pick things up.
 490
 491     win->GetUpdateRegion().Union( gdk_event->area.x,
 492                                   gdk_event->area.y,
 493                                   gdk_event->area.width,
 494                                   gdk_event->area.height );
 495     win->m_clearRegion.Union( gdk_event->area.x,
 496                                   gdk_event->area.y,
 497                                   gdk_event->area.width,
 498                                   gdk_event->area.height );
 499
 500     // Actual redrawing takes place in idle time.
 501     // win->GtkUpdate();
 502
 503     return FALSE;
 504 }
 505 }
 506
 507 //-----------------------------------------------------------------------------
 508 // "event" of m_wxwindow
 509 //-----------------------------------------------------------------------------
 510
 511 // GTK thinks it is clever and filters out a certain amount of "unneeded"
 512 // expose events. We need them, of course, so we override the main event
 513 // procedure in GtkWidget by giving our own handler for all system events.
 514 // There, we look for expose events ourselves whereas all other events are
 515 // handled normally.
 516
 517 extern "C" {
 518 static
 519 gint gtk_window_event_event_callback( GtkWidget *widget,
 520                                       GdkEventExpose *event,
 521                                       wxWindow *win )
 522 {
 523     if (event->type == GDK_EXPOSE)
 524     {
 525         gint ret = gtk_window_expose_callback( widget, event, win );
 526         return ret;
 527     }
 528
 529     return FALSE;
 530 }
 531 }
 532
 533 //-----------------------------------------------------------------------------
 534 // "draw" of m_wxwindow
 535 //-----------------------------------------------------------------------------
 536
 537 // This callback is a complete replacement of the gtk_pizza_draw() function,
 538 // which is disabled.
 539
 540 extern "C" {
 541 static void gtk_window_draw_callback( GtkWidget *widget,
 542                                       GdkRectangle *rect,
 543                                       wxWindow *win )
 544 {
 545     DEBUG_MAIN_THREAD
 546
 547     if (g_isIdle)
 548         wxapp_install_idle_handler();
 549
 550     // if there are any children we must refresh everything
 551     //
 552     // VZ: why?
 553     if ( !win->HasFlag(wxFULL_REPAINT_ON_RESIZE) &&
 554             win->GetChildren().IsEmpty() )
 555     {
 556         return;
 557     }
 558
 559 #if 0
 560     if (win->GetName())
 561     {
 562         wxPrintf( wxT("OnDraw from ") );
 563         if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
 564             wxPrintf( win->GetClassInfo()->GetClassName() );
 565         wxPrintf( wxT(" %d %d %d %d\n"), (int)rect->x,
 566                                          (int)rect->y,
 567                                          (int)rect->width,
 568                                          (int)rect->height );
 569     }
 570 #endif
 571
 572 #ifndef __WXUNIVERSAL__
 573     GtkPizza *pizza = GTK_PIZZA (widget);
 574
 575     if (win->GetThemeEnabled() && win->GetBackgroundStyle() == wxBG_STYLE_SYSTEM)
 576     {
 577         wxWindow *parent = win->GetParent();
 578         while (parent && !parent->IsTopLevel())
 579             parent = parent->GetParent();
 580         if (!parent)
 581             parent = win;
 582
 583         gtk_paint_flat_box (parent->m_widget->style,
 584                             pizza->bin_window,
 585                             GTK_STATE_NORMAL,
 586                             GTK_SHADOW_NONE,
 587                             rect,
 588                             parent->m_widget,
 589                             (char *)"base",
 590                             0, 0, -1, -1);
 591     }
 592 #endif
 593
 594     win->m_clearRegion.Union( rect->x, rect->y, rect->width, rect->height );
 595     win->GetUpdateRegion().Union( rect->x, rect->y, rect->width, rect->height );
 596
 597     // Update immediately, not in idle time.
 598     win->GtkUpdate();
 599
 600 #ifndef __WXUNIVERSAL__
 601     // Redraw child widgets
 602     GList *children = pizza->children;
 603     while (children)
 604     {
 605         GtkPizzaChild *child = (GtkPizzaChild*) children->data;
 606         children = children->next;
 607
 608         GdkRectangle child_area;
 609         if (gtk_widget_intersect (child->widget, rect, &child_area))
 610         {
 611             gtk_widget_draw (child->widget, &child_area /* NULL*/ );
 612         }
 613     }
 614 #endif
 615 }
 616 }
 617
 618 //-----------------------------------------------------------------------------
 619 // "key_press_event" from any window
 620 //-----------------------------------------------------------------------------
 621
 622 // set WXTRACE to this to see the key event codes on the console
 623 #define TRACE_KEYS  _T("keyevent")
 624
 625 // translates an X key symbol to WXK_XXX value
 626 //
 627 // if isChar is true it means that the value returned will be used for EVT_CHAR
 628 // event and then we choose the logical WXK_XXX, i.e. '/' for GDK_KP_Divide,
 629 // for example, while if it is false it means that the value is going to be
 630 // used for KEY_DOWN/UP events and then we translate GDK_KP_Divide to
 631 // WXK_NUMPAD_DIVIDE
 632 static long wxTranslateKeySymToWXKey(KeySym keysym, bool isChar)
 633 {
 634     long key_code;
 635
 636     switch ( keysym )
 637     {
 638         // Shift, Control and Alt don't generate the CHAR events at all
 639         case GDK_Shift_L:
 640         case GDK_Shift_R:
 641             key_code = isChar ? 0 : WXK_SHIFT;
 642             break;
 643         case GDK_Control_L:
 644         case GDK_Control_R:
 645             key_code = isChar ? 0 : WXK_CONTROL;
 646             break;
 647         case GDK_Meta_L:
 648         case GDK_Meta_R:
 649         case GDK_Alt_L:
 650         case GDK_Alt_R:
 651         case GDK_Super_L:
 652         case GDK_Super_R:
 653             key_code = isChar ? 0 : WXK_ALT;
 654             break;
 655
 656         // neither do the toggle modifies
 657         case GDK_Scroll_Lock:
 658             key_code = isChar ? 0 : WXK_SCROLL;
 659             break;
 660
 661         case GDK_Caps_Lock:
 662             key_code = isChar ? 0 : WXK_CAPITAL;
 663             break;
 664
 665         case GDK_Num_Lock:
 666             key_code = isChar ? 0 : WXK_NUMLOCK;
 667             break;
 668
 669
 670         // various other special keys
 671         case GDK_Menu:
 672             key_code = WXK_MENU;
 673             break;
 674
 675         case GDK_Help:
 676             key_code = WXK_HELP;
 677             break;
 678
 679         case GDK_BackSpace:
 680             key_code = WXK_BACK;
 681             break;
 682
 683         case GDK_ISO_Left_Tab:
 684         case GDK_Tab:
 685             key_code = WXK_TAB;
 686             break;
 687
 688         case GDK_Linefeed:
 689         case GDK_Return:
 690             key_code = WXK_RETURN;
 691             break;
 692
 693         case GDK_Clear:
 694             key_code = WXK_CLEAR;
 695             break;
 696
 697         case GDK_Pause:
 698             key_code = WXK_PAUSE;
 699             break;
 700
 701         case GDK_Select:
 702             key_code = WXK_SELECT;
 703             break;
 704
 705         case GDK_Print:
 706             key_code = WXK_PRINT;
 707             break;
 708
 709         case GDK_Execute:
 710             key_code = WXK_EXECUTE;
 711             break;
 712
 713         case GDK_Escape:
 714             key_code = WXK_ESCAPE;
 715             break;
 716
 717         // cursor and other extended keyboard keys
 718         case GDK_Delete:
 719             key_code = WXK_DELETE;
 720             break;
 721
 722         case GDK_Home:
 723             key_code = WXK_HOME;
 724             break;
 725
 726         case GDK_Left:
 727             key_code = WXK_LEFT;
 728             break;
 729
 730         case GDK_Up:
 731             key_code = WXK_UP;
 732             break;
 733
 734         case GDK_Right:
 735             key_code = WXK_RIGHT;
 736             break;
 737
 738         case GDK_Down:
 739             key_code = WXK_DOWN;
 740             break;
 741
 742         case GDK_Prior:     // == GDK_Page_Up
 743             key_code = WXK_PAGEUP;
 744             break;
 745
 746         case GDK_Next:      // == GDK_Page_Down
 747             key_code = WXK_PAGEDOWN;
 748             break;
 749
 750         case GDK_End:
 751             key_code = WXK_END;
 752             break;
 753
 754         case GDK_Begin:
 755             key_code = WXK_HOME;
 756             break;
 757
 758         case GDK_Insert:
 759             key_code = WXK_INSERT;
 760             break;
 761
 762
 763         // numpad keys
 764         case GDK_KP_0:
 765         case GDK_KP_1:
 766         case GDK_KP_2:
 767         case GDK_KP_3:
 768         case GDK_KP_4:
 769         case GDK_KP_5:
 770         case GDK_KP_6:
 771         case GDK_KP_7:
 772         case GDK_KP_8:
 773         case GDK_KP_9:
 774             key_code = (isChar ? '0' : WXK_NUMPAD0) + keysym - GDK_KP_0;
 775             break;
 776
 777         case GDK_KP_Space:
 778             key_code = isChar ? ' ' : WXK_NUMPAD_SPACE;
 779             break;
 780
 781         case GDK_KP_Tab:
 782             key_code = isChar ? WXK_TAB : WXK_NUMPAD_TAB;
 783             break;
 784
 785         case GDK_KP_Enter:
 786             key_code = isChar ? WXK_RETURN : WXK_NUMPAD_ENTER;
 787             break;
 788
 789         case GDK_KP_F1:
 790             key_code = isChar ? WXK_F1 : WXK_NUMPAD_F1;
 791             break;
 792
 793         case GDK_KP_F2:
 794             key_code = isChar ? WXK_F2 : WXK_NUMPAD_F2;
 795             break;
 796
 797         case GDK_KP_F3:
 798             key_code = isChar ? WXK_F3 : WXK_NUMPAD_F3;
 799             break;
 800
 801         case GDK_KP_F4:
 802             key_code = isChar ? WXK_F4 : WXK_NUMPAD_F4;
 803             break;
 804
 805         case GDK_KP_Home:
 806             key_code = isChar ? WXK_HOME : WXK_NUMPAD_HOME;
 807             break;
 808
 809         case GDK_KP_Left:
 810             key_code = isChar ? WXK_LEFT : WXK_NUMPAD_LEFT;
 811             break;
 812
 813         case GDK_KP_Up:
 814             key_code = isChar ? WXK_UP : WXK_NUMPAD_UP;
 815             break;
 816
 817         case GDK_KP_Right:
 818             key_code = isChar ? WXK_RIGHT : WXK_NUMPAD_RIGHT;
 819             break;
 820
 821         case GDK_KP_Down:
 822             key_code = isChar ? WXK_DOWN : WXK_NUMPAD_DOWN;
 823             break;
 824
 825         case GDK_KP_Prior: // == GDK_KP_Page_Up
 826             key_code = isChar ? WXK_PAGEUP : WXK_NUMPAD_PAGEUP;
 827             break;
 828
 829         case GDK_KP_Next: // == GDK_KP_Page_Down
 830             key_code = isChar ? WXK_PAGEDOWN : WXK_NUMPAD_PAGEDOWN;
 831             break;
 832
 833         case GDK_KP_End:
 834             key_code = isChar ? WXK_END : WXK_NUMPAD_END;
 835             break;
 836
 837         case GDK_KP_Begin:
 838             key_code = isChar ? WXK_HOME : WXK_NUMPAD_BEGIN;
 839             break;
 840
 841         case GDK_KP_Insert:
 842             key_code = isChar ? WXK_INSERT : WXK_NUMPAD_INSERT;
 843             break;
 844
 845         case GDK_KP_Delete:
 846             key_code = isChar ? WXK_DELETE : WXK_NUMPAD_DELETE;
 847             break;
 848
 849         case GDK_KP_Equal:
 850             key_code = isChar ? '=' : WXK_NUMPAD_EQUAL;
 851             break;
 852
 853         case GDK_KP_Multiply:
 854             key_code = isChar ? '*' : WXK_NUMPAD_MULTIPLY;
 855             break;
 856
 857         case GDK_KP_Add:
 858             key_code = isChar ? '+' : WXK_NUMPAD_ADD;
 859             break;
 860
 861         case GDK_KP_Separator:
 862             // FIXME: what is this?
 863             key_code = isChar ? '.' : WXK_NUMPAD_SEPARATOR;
 864             break;
 865
 866         case GDK_KP_Subtract:
 867             key_code = isChar ? '-' : WXK_NUMPAD_SUBTRACT;
 868             break;
 869
 870         case GDK_KP_Decimal:
 871             key_code = isChar ? '.' : WXK_NUMPAD_DECIMAL;
 872             break;
 873
 874         case GDK_KP_Divide:
 875             key_code = isChar ? '/' : WXK_NUMPAD_DIVIDE;
 876             break;
 877
 878
 879         // function keys
 880         case GDK_F1:
 881         case GDK_F2:
 882         case GDK_F3:
 883         case GDK_F4:
 884         case GDK_F5:
 885         case GDK_F6:
 886         case GDK_F7:
 887         case GDK_F8:
 888         case GDK_F9:
 889         case GDK_F10:
 890         case GDK_F11:
 891         case GDK_F12:
 892             key_code = WXK_F1 + keysym - GDK_F1;
 893             break;
 894
 895         default:
 896             key_code = 0;
 897     }
 898
 899     return key_code;
 900 }
 901
 902 static inline bool wxIsAsciiKeysym(KeySym ks)
 903 {
 904     return ks < 256;
 905 }
 906
 907 static void wxFillOtherKeyEventFields(wxKeyEvent& event,
 908                                       wxWindowGTK *win,
 909                                       GdkEventKey *gdk_event)
 910 {
 911     int x = 0;
 912     int y = 0;
 913     GdkModifierType state;
 914     if (gdk_event->window)
 915         gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
 916
 917     event.SetTimestamp( gdk_event->time );
 918     event.SetId(win->GetId());
 919     event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
 920     event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
 921     event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
 922     event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK) != 0;
 923     event.m_rawCode = (wxUint32) gdk_event->keyval;
 924     event.m_rawFlags = 0;
 925 #if wxUSE_UNICODE
 926 #if 0
 927    // this is not gtk1.x
 928    event.m_uniChar = gdk_keyval_to_unicode(gdk_event->keyval);
 929 #endif
 930 #endif
 931     wxGetMousePosition( &x, &y );
 932     win->ScreenToClient( &x, &y );
 933     event.m_x = x;
 934     event.m_y = y;
 935     event.SetEventObject( win );
 936 }
 937
 938
 939 static bool
 940 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
 941                            wxWindowGTK *win,
 942                            GdkEventKey *gdk_event)
 943 {
 944     // VZ: it seems that GDK_KEY_RELEASE event doesn't set event->string
 945     //     but only event->keyval which is quite useless to us, so remember
 946     //     the last character from GDK_KEY_PRESS and reuse it as last resort
 947     //
 948     // NB: should be MT-safe as we're always called from the main thread only
 949     static struct
 950     {
 951         KeySym keysym;
 952         long   keycode;
 953     } s_lastKeyPress = { 0, 0 };
 954
 955     KeySym keysym = gdk_event->keyval;
 956
 957     wxLogTrace(TRACE_KEYS, _T("Key %s event: keysym = %ld"),
 958                event.GetEventType() == wxEVT_KEY_UP ? _T("release")
 959                                                     : _T("press"),
 960                keysym);
 961
 962     long key_code = wxTranslateKeySymToWXKey(keysym, false /* !isChar */);
 963
 964     if ( !key_code )
 965     {
 966         // do we have the translation or is it a plain ASCII character?
 967         if ( (gdk_event->length == 1) || wxIsAsciiKeysym(keysym) )
 968         {
 969             // we should use keysym if it is ASCII as X does some translations
 970             // like "I pressed while Control is down" => "Ctrl-I" == "TAB"
 971             // which we don't want here (but which we do use for OnChar())
 972             if ( !wxIsAsciiKeysym(keysym) )
 973             {
 974                 keysym = (KeySym)gdk_event->string[0];
 975             }
 976
 977             // we want to always get the same key code when the same key is
 978             // pressed regardless of the state of the modifiers, i.e. on a
 979             // standard US keyboard pressing '5' or '%' ('5' key with
 980             // Shift) should result in the same key code in OnKeyDown():
 981             // '5' (although OnChar() will get either '5' or '%').
 982             //
 983             // to do it we first translate keysym to keycode (== scan code)
 984             // and then back but always using the lower register
 985             Display *dpy = (Display *)wxGetDisplay();
 986             KeyCode keycode = XKeysymToKeycode(dpy, keysym);
 987
 988             wxLogTrace(TRACE_KEYS, _T("\t-> keycode %d"), keycode);
 989
 990             KeySym keysymNormalized = XKeycodeToKeysym(dpy, keycode, 0);
 991
 992             // use the normalized, i.e. lower register, keysym if we've
 993             // got one
 994             key_code = keysymNormalized ? keysymNormalized : keysym;
 995
 996             // as explained above, we want to have lower register key codes
 997             // normally but for the letter keys we want to have the upper ones
 998             //
 999             // NB: don't use XConvertCase() here, we want to do it for letters
1000             // only
1001             key_code = toupper(key_code);
1002         }
1003         else // non ASCII key, what to do?
1004         {
1005             // by default, ignore it
1006             key_code = 0;
1007
1008             // but if we have cached information from the last KEY_PRESS
1009             if ( gdk_event->type == GDK_KEY_RELEASE )
1010             {
1011                 // then reuse it
1012                 if ( keysym == s_lastKeyPress.keysym )
1013                 {
1014                     key_code = s_lastKeyPress.keycode;
1015                 }
1016             }
1017         }
1018
1019         if ( gdk_event->type == GDK_KEY_PRESS )
1020         {
1021             // remember it to be reused for KEY_UP event later
1022             s_lastKeyPress.keysym = keysym;
1023             s_lastKeyPress.keycode = key_code;
1024         }
1025     }
1026
1027     wxLogTrace(TRACE_KEYS, _T("\t-> wxKeyCode %ld"), key_code);
1028
1029     // sending unknown key events doesn't really make sense
1030     if ( !key_code )
1031         return false;
1032
1033     // now fill all the other fields
1034     wxFillOtherKeyEventFields(event, win, gdk_event);
1035
1036     event.m_keyCode = key_code;
1037
1038     return true;
1039 }
1040
1041
1042 extern "C" {
1043 static gint gtk_window_key_press_callback( GtkWidget *widget,
1044                                            GdkEventKey *gdk_event,
1045                                            wxWindow *win )
1046 {
1047     DEBUG_MAIN_THREAD
1048
1049     if (g_isIdle)
1050         wxapp_install_idle_handler();
1051
1052     if (!win->m_hasVMT)
1053         return FALSE;
1054     if (g_blockEventsOnDrag)
1055         return FALSE;
1056
1057
1058     wxKeyEvent event( wxEVT_KEY_DOWN );
1059     bool ret = false;
1060     bool return_after_IM = false;
1061
1062     if ( wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1063     {
1064         // Emit KEY_DOWN event
1065         ret = win->HandleWindowEvent( event );
1066     }
1067     else
1068     {
1069         // Return after IM processing as we cannot do
1070         // anything with it anyhow.
1071         return_after_IM = true;
1072     }
1073
1074     // This is for GTK+ 1.2 only. The char event generatation for GTK+ 2.0 is done
1075     // in the "commit" handler.
1076
1077     // 2005.02.02 modified by Hong Jen Yee (hzysoft@sina.com.tw).
1078     // In GTK+ 1.2, strings sent by IMs are also regarded as key_press events whose
1079     // keyCodes cannot be recognized by wxWidgets. These MBCS strings, however, are
1080     // composed of more than one character, which means gdk_event->length will always
1081     // greater than one. When gtk_event->length == 1, this may be an ASCII character
1082     // and can be translated by wx.  However, when MBCS characters are sent by IM,
1083     // gdk_event->length will >= 2. So neither should we pass it to accelerator table,
1084     // nor should we pass it to controls. The following explanation was excerpted
1085     // from GDK documentation.
1086     // gint length : the length of string.
1087     // gchar *string : a null-terminated multi-byte string containing the composed
1088     // characters resulting from the key press. When text is being input, in a GtkEntry
1089     // for example, it is these characters which should be added to the input buffer.
1090     // When using Input Methods to support internationalized text input, the composed
1091     // characters appear here after the pre-editing has been completed.
1092
1093     if ( (!ret) && (gdk_event->length > 1) ) // If this event contains a pre-edited string from IM.
1094     {
1095         // We should translate this key event into wxEVT_CHAR not wxEVT_KEY_DOWN.
1096         #if wxUSE_UNICODE   // GTK+ 1.2 is not UTF-8 based.
1097             const wxWCharBuffer string = wxConvLocal.cMB2WC( gdk_event->string );
1098             if( !string )
1099                 return false;
1100         #else
1101             const char* string = gdk_event->string;
1102         #endif
1103
1104         // Implement OnCharHook by checking ancestor top level windows
1105         wxWindow *parent = win;
1106         while (parent && !parent->IsTopLevel())
1107             parent = parent->GetParent();
1108
1109         for( const wxChar* pstr = string; *pstr; pstr++ )
1110         {
1111         #if wxUSE_UNICODE
1112             event.m_uniChar = *pstr;
1113             // Backward compatible for ISO-8859-1
1114             event.m_keyCode = *pstr < 256 ? event.m_uniChar : 0;
1115         #else
1116             event.m_keyCode = *pstr;
1117         #endif
1118             if (parent)
1119             {
1120                 event.SetEventType( wxEVT_CHAR_HOOK );
1121                 ret = parent->HandleWindowEvent( event );
1122             }
1123             if (!ret)
1124             {
1125                 event.SetEventType(wxEVT_CHAR);
1126                 win->HandleWindowEvent( event );
1127             }
1128         }
1129         return true;
1130     }
1131
1132     if (return_after_IM)
1133         return false;
1134
1135 #if wxUSE_ACCEL
1136     if (!ret)
1137     {
1138         wxWindowGTK *ancestor = win;
1139         while (ancestor)
1140         {
1141             int command = ancestor->GetAcceleratorTable()->GetCommand( event );
1142             if (command != -1)
1143             {
1144                 wxCommandEvent command_event( wxEVT_COMMAND_MENU_SELECTED, command );
1145                 ret = ancestor->HandleWindowEvent( command_event );
1146                 break;
1147             }
1148             if (ancestor->IsTopLevel())
1149                 break;
1150             ancestor = ancestor->GetParent();
1151         }
1152     }
1153 #endif // wxUSE_ACCEL
1154
1155     // Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
1156     // will only be sent if it is not in an accelerator table.
1157     if (!ret)
1158     {
1159         long key_code;
1160         KeySym keysym = gdk_event->keyval;
1161         // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
1162         key_code = wxTranslateKeySymToWXKey(keysym, true /* isChar */);
1163         if ( !key_code )
1164         {
1165             if ( wxIsAsciiKeysym(keysym) )
1166             {
1167                 // ASCII key
1168                 key_code = (unsigned char)keysym;
1169             }
1170             // gdk_event->string is actually deprecated
1171             else if ( gdk_event->length == 1 )
1172             {
1173                 key_code = (unsigned char)gdk_event->string[0];
1174             }
1175         }
1176
1177         if ( key_code )
1178         {
1179             wxLogTrace(TRACE_KEYS, _T("Char event: %ld"), key_code);
1180
1181             event.m_keyCode = key_code;
1182
1183             // Implement OnCharHook by checking ancestor top level windows
1184             wxWindow *parent = win;
1185             while (parent && !parent->IsTopLevel())
1186                 parent = parent->GetParent();
1187             if (parent)
1188             {
1189                 event.SetEventType( wxEVT_CHAR_HOOK );
1190                 ret = parent->HandleWindowEvent( event );
1191             }
1192
1193             if (!ret)
1194             {
1195                 event.SetEventType(wxEVT_CHAR);
1196                 ret = win->HandleWindowEvent( event );
1197             }
1198         }
1199     }
1200
1201
1202
1203
1204
1205     // win is a control: tab can be propagated up
1206     if ( !ret &&
1207          ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab)) &&
1208 // VZ: testing for wxTE_PROCESS_TAB shouldn't be done here - the control may
1209 //     have this style, yet choose not to process this particular TAB in which
1210 //     case TAB must still work as a navigational character
1211 // JS: enabling again to make consistent with other platforms
1212 //     (with wxTE_PROCESS_TAB you have to call Navigate to get default
1213 //     navigation behaviour)
1214 #if wxUSE_TEXTCTRL
1215          (! (win->HasFlag(wxTE_PROCESS_TAB) && win->IsKindOf(CLASSINFO(wxTextCtrl)) )) &&
1216 #endif
1217          win->GetParent() && (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
1218     {
1219         wxNavigationKeyEvent new_event;
1220         new_event.SetEventObject( win->GetParent() );
1221         // GDK reports GDK_ISO_Left_Tab for SHIFT-TAB
1222         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
1223         // CTRL-TAB changes the (parent) window, i.e. switch notebook page
1224         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
1225         new_event.SetCurrentFocus( win );
1226         ret = win->GetParent()->HandleWindowEvent( new_event );
1227     }
1228
1229     // generate wxID_CANCEL if <esc> has been pressed (typically in dialogs)
1230     if ( !ret &&
1231          (gdk_event->keyval == GDK_Escape) )
1232     {
1233         // however only do it if we have a Cancel button in the dialog,
1234         // otherwise the user code may get confused by the events from a
1235         // non-existing button and, worse, a wxButton might get button event
1236         // from another button which is not really expected
1237         wxWindow *winForCancel = win,
1238                  *btnCancel = NULL;
1239         while ( winForCancel )
1240         {
1241             btnCancel = winForCancel->FindWindow(wxID_CANCEL);
1242             if ( btnCancel )
1243             {
1244                 // found a cancel button
1245                 break;
1246             }
1247
1248             if ( winForCancel->IsTopLevel() )
1249             {
1250                 // no need to look further
1251                 break;
1252             }
1253
1254             // maybe our parent has a cancel button?
1255             winForCancel = winForCancel->GetParent();
1256         }
1257
1258         if ( btnCancel )
1259         {
1260             wxCommandEvent eventClick(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
1261             eventClick.SetEventObject(btnCancel);
1262             ret = btnCancel->HandleWindowEvent(eventClick);
1263         }
1264     }
1265
1266     if (ret)
1267     {
1268         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
1269         return TRUE;
1270     }
1271
1272     return FALSE;
1273 }
1274 }
1275
1276 //-----------------------------------------------------------------------------
1277 // "key_release_event" from any window
1278 //-----------------------------------------------------------------------------
1279
1280 extern "C" {
1281 static gint gtk_window_key_release_callback( GtkWidget *widget,
1282                                              GdkEventKey *gdk_event,
1283                                              wxWindowGTK *win )
1284 {
1285     DEBUG_MAIN_THREAD
1286
1287     if (g_isIdle)
1288         wxapp_install_idle_handler();
1289
1290     if (!win->m_hasVMT)
1291         return FALSE;
1292
1293     if (g_blockEventsOnDrag)
1294         return FALSE;
1295
1296     wxKeyEvent event( wxEVT_KEY_UP );
1297     if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
1298     {
1299         // unknown key pressed, ignore (the event would be useless anyhow)
1300         return FALSE;
1301     }
1302
1303     if ( !win->HandleWindowEvent( event ) )
1304         return FALSE;
1305
1306     gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_release_event" );
1307     return TRUE;
1308 }
1309 }
1310
1311 // ============================================================================
1312 // the mouse events
1313 // ============================================================================
1314
1315 // ----------------------------------------------------------------------------
1316 // mouse event processing helpers
1317 // ----------------------------------------------------------------------------
1318
1319 // init wxMouseEvent with the info from GdkEventXXX struct
1320 template<typename T> void InitMouseEvent(wxWindowGTK *win,
1321                                          wxMouseEvent& event,
1322                                          T *gdk_event)
1323 {
1324     event.SetTimestamp( gdk_event->time );
1325     event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
1326     event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
1327     event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
1328     event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
1329     event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
1330     event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
1331     event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);
1332     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
1333     {
1334        event.m_linesPerAction = 3;
1335        event.m_wheelDelta = 120;
1336        if (((GdkEventButton*)gdk_event)->button == 4)
1337            event.m_wheelRotation = 120;
1338        else if (((GdkEventButton*)gdk_event)->button == 5)
1339            event.m_wheelRotation = -120;
1340     }
1341
1342     wxPoint pt = win->GetClientAreaOrigin();
1343     event.m_x = (wxCoord)gdk_event->x - pt.x;
1344     event.m_y = (wxCoord)gdk_event->y - pt.y;
1345
1346     event.SetEventObject( win );
1347     event.SetId( win->GetId() );
1348     event.SetTimestamp( gdk_event->time );
1349 }
1350
1351 static void AdjustEventButtonState(wxMouseEvent& event)
1352 {
1353     // GDK reports the old state of the button for a button press event, but
1354     // for compatibility with MSW and common sense we want m_leftDown be true
1355     // for a LEFT_DOWN event, not FALSE, so we will invert
1356     // left/right/middleDown for the corresponding click events
1357
1358     if ((event.GetEventType() == wxEVT_LEFT_DOWN) ||
1359         (event.GetEventType() == wxEVT_LEFT_DCLICK) ||
1360         (event.GetEventType() == wxEVT_LEFT_UP))
1361     {
1362         event.m_leftDown = !event.m_leftDown;
1363         return;
1364     }
1365
1366     if ((event.GetEventType() == wxEVT_MIDDLE_DOWN) ||
1367         (event.GetEventType() == wxEVT_MIDDLE_DCLICK) ||
1368         (event.GetEventType() == wxEVT_MIDDLE_UP))
1369     {
1370         event.m_middleDown = !event.m_middleDown;
1371         return;
1372     }
1373
1374     if ((event.GetEventType() == wxEVT_RIGHT_DOWN) ||
1375         (event.GetEventType() == wxEVT_RIGHT_DCLICK) ||
1376         (event.GetEventType() == wxEVT_RIGHT_UP))
1377     {
1378         event.m_rightDown = !event.m_rightDown;
1379         return;
1380     }
1381 }
1382
1383 // find the window to send the mouse event too
1384 static
1385 wxWindowGTK *FindWindowForMouseEvent(wxWindowGTK *win, wxCoord& x, wxCoord& y)
1386 {
1387     wxCoord xx = x;
1388     wxCoord yy = y;
1389
1390     if (win->m_wxwindow)
1391     {
1392         GtkPizza *pizza = GTK_PIZZA(win->m_wxwindow);
1393         xx += pizza->xoffset;
1394         yy += pizza->yoffset;
1395     }
1396
1397     wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
1398     while (node)
1399     {
1400         wxWindowGTK *child = node->GetData();
1401
1402         node = node->GetNext();
1403         if (!child->IsShown())
1404             continue;
1405
1406         if (child->IsTransparentForMouse())
1407         {
1408             // wxStaticBox is transparent in the box itself
1409             int xx1 = child->m_x;
1410             int yy1 = child->m_y;
1411             int xx2 = child->m_x + child->m_width;
1412             int yy2 = child->m_y + child->m_height;
1413
1414             // left
1415             if (((xx >= xx1) && (xx <= xx1+10) && (yy >= yy1) && (yy <= yy2)) ||
1416             // right
1417                 ((xx >= xx2-10) && (xx <= xx2) && (yy >= yy1) && (yy <= yy2)) ||
1418             // top
1419                 ((xx >= xx1) && (xx <= xx2) && (yy >= yy1) && (yy <= yy1+10)) ||
1420             // bottom
1421                 ((xx >= xx1) && (xx <= xx2) && (yy >= yy2-1) && (yy <= yy2)))
1422             {
1423                 win = child;
1424                 x -= child->m_x;
1425                 y -= child->m_y;
1426                 break;
1427             }
1428
1429         }
1430         else
1431         {
1432             if ((child->m_wxwindow == NULL) &&
1433                 (child->m_x <= xx) &&
1434                 (child->m_y <= yy) &&
1435                 (child->m_x+child->m_width  >= xx) &&
1436                 (child->m_y+child->m_height >= yy))
1437             {
1438                 win = child;
1439                 x -= child->m_x;
1440                 y -= child->m_y;
1441                 break;
1442             }
1443         }
1444     }
1445
1446     return win;
1447 }
1448
1449 //-----------------------------------------------------------------------------
1450 // "button_press_event"
1451 //-----------------------------------------------------------------------------
1452
1453 extern "C" {
1454 static gint gtk_window_button_press_callback( GtkWidget *widget,
1455                                               GdkEventButton *gdk_event,
1456                                               wxWindowGTK *win )
1457 {
1458     DEBUG_MAIN_THREAD
1459
1460     if (g_isIdle)
1461         wxapp_install_idle_handler();
1462
1463 /*
1464     wxPrintf( wxT("1) OnButtonPress from ") );
1465     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
1466         wxPrintf( win->GetClassInfo()->GetClassName() );
1467     wxPrintf( wxT(".\n") );
1468 */
1469     if (!win->m_hasVMT) return FALSE;
1470     if (g_blockEventsOnDrag) return TRUE;
1471     if (g_blockEventsOnScroll) return TRUE;
1472
1473     if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
1474
1475     g_lastButtonNumber = gdk_event->button;
1476
1477     if (win->m_wxwindow && (g_focusWindow != win) && win->IsFocusable())
1478     {
1479         gtk_widget_grab_focus( win->m_wxwindow );
1480 /*
1481         wxPrintf( wxT("GrabFocus from ") );
1482         if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
1483             wxPrintf( win->GetClassInfo()->GetClassName() );
1484         wxPrintf( wxT(".\n") );
1485 */
1486     }
1487
1488     // GDK sends surplus button down events
1489     // before a double click event. We
1490     // need to filter these out.
1491     if (gdk_event->type == GDK_BUTTON_PRESS)
1492     {
1493         GdkEvent *peek_event = gdk_event_peek();
1494         if (peek_event)
1495         {
1496             if ((peek_event->type == GDK_2BUTTON_PRESS) ||
1497                 (peek_event->type == GDK_3BUTTON_PRESS))
1498             {
1499                 gdk_event_free( peek_event );
1500                 return TRUE;
1501             }
1502             else
1503             {
1504                 gdk_event_free( peek_event );
1505             }
1506         }
1507     }
1508
1509     wxEventType event_type = wxEVT_NULL;
1510
1511     if (gdk_event->button == 1)
1512     {
1513         // note that GDK generates triple click events which are not supported
1514         // by wxWidgets but still have to be passed to the app as otherwise
1515         // clicks would simply go missing
1516         switch (gdk_event->type)
1517         {
1518             // we shouldn't get triple clicks at all for GTK2 because we
1519             // suppress them artificially using the code above but we still
1520             // should map them to something for GTK1 and not just ignore them
1521             // as this would lose clicks
1522             case GDK_3BUTTON_PRESS:     // we could also map this to DCLICK...
1523             case GDK_BUTTON_PRESS:
1524                 event_type = wxEVT_LEFT_DOWN;
1525                 break;
1526
1527             case GDK_2BUTTON_PRESS:
1528                 event_type = wxEVT_LEFT_DCLICK;
1529                 break;
1530
1531             default:
1532                 // just to silence gcc warnings
1533                 ;
1534         }
1535     }
1536     else if (gdk_event->button == 2)
1537     {
1538         switch (gdk_event->type)
1539         {
1540             case GDK_3BUTTON_PRESS:
1541             case GDK_BUTTON_PRESS:
1542                 event_type = wxEVT_MIDDLE_DOWN;
1543                 break;
1544
1545             case GDK_2BUTTON_PRESS:
1546                 event_type = wxEVT_MIDDLE_DCLICK;
1547                 break;
1548
1549             default:
1550                 ;
1551         }
1552     }
1553     else if (gdk_event->button == 3)
1554     {
1555         switch (gdk_event->type)
1556         {
1557             case GDK_3BUTTON_PRESS:
1558             case GDK_BUTTON_PRESS:
1559                 event_type = wxEVT_RIGHT_DOWN;
1560                 break;
1561
1562             case GDK_2BUTTON_PRESS:
1563                 event_type = wxEVT_RIGHT_DCLICK;
1564                 break;
1565
1566             default:
1567                 ;
1568         }
1569     }
1570     else if (gdk_event->button == 4 || gdk_event->button == 5)
1571     {
1572         if (gdk_event->type == GDK_BUTTON_PRESS )
1573         {
1574             event_type = wxEVT_MOUSEWHEEL;
1575         }
1576     }
1577
1578     if ( event_type == wxEVT_NULL )
1579     {
1580         // unknown mouse button or click type
1581         return FALSE;
1582     }
1583
1584     g_lastMouseEvent = (GdkEvent*) gdk_event;
1585
1586     wxMouseEvent event( event_type );
1587     InitMouseEvent( win, event, gdk_event );
1588
1589     AdjustEventButtonState(event);
1590
1591     // wxListBox actually gets mouse events from the item, so we need to give it
1592     // a chance to correct this
1593     win->FixUpMouseEvent(widget, event.m_x, event.m_y);
1594
1595     // find the correct window to send the event to: it may be a different one
1596     // from the one which got it at GTK+ level because some controls don't have
1597     // their own X window and thus cannot get any events.
1598     if ( !g_captureWindow )
1599         win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1600
1601     wxGtkTimeLastClick = gdk_event->time;
1602
1603     if (event_type == wxEVT_LEFT_DCLICK)
1604     {
1605         // GTK 1.2 crashes when intercepting double
1606         // click events from both wxSpinButton and
1607         // wxSpinCtrl
1608         if (GTK_IS_SPIN_BUTTON(win->m_widget))
1609         {
1610             // Just disable this event for now.
1611             return FALSE;
1612         }
1613     }
1614
1615     if (win->HandleWindowEvent( event ))
1616     {
1617         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "button_press_event" );
1618         g_lastMouseEvent = NULL;
1619         return TRUE;
1620     }
1621     g_lastMouseEvent = NULL;
1622
1623     if (event_type == wxEVT_RIGHT_DOWN)
1624     {
1625         // generate a "context menu" event: this is similar to right mouse
1626         // click under many GUIs except that it is generated differently
1627         // (right up under MSW, ctrl-click under Mac, right down here) and
1628         //
1629         // (a) it's a command event and so is propagated to the parent
1630         // (b) under some ports it can be generated from kbd too
1631         // (c) it uses screen coords (because of (a))
1632         wxContextMenuEvent evtCtx(
1633             wxEVT_CONTEXT_MENU,
1634             win->GetId(),
1635             win->ClientToScreen(event.GetPosition()));
1636         evtCtx.SetEventObject(win);
1637         return win->HandleWindowEvent(evtCtx);
1638     }
1639
1640     return FALSE;
1641 }
1642 }
1643
1644 //-----------------------------------------------------------------------------
1645 // "button_release_event"
1646 //-----------------------------------------------------------------------------
1647
1648 extern "C" {
1649 static gint gtk_window_button_release_callback( GtkWidget *widget,
1650                                                 GdkEventButton *gdk_event,
1651                                                 wxWindowGTK *win )
1652 {
1653     DEBUG_MAIN_THREAD
1654
1655     if (g_isIdle)
1656         wxapp_install_idle_handler();
1657
1658     if (!win->m_hasVMT) return FALSE;
1659     if (g_blockEventsOnDrag) return FALSE;
1660     if (g_blockEventsOnScroll) return FALSE;
1661
1662     if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
1663
1664     g_lastButtonNumber = 0;
1665
1666     wxEventType event_type = wxEVT_NULL;
1667
1668     switch (gdk_event->button)
1669     {
1670         case 1:
1671             event_type = wxEVT_LEFT_UP;
1672             break;
1673
1674         case 2:
1675             event_type = wxEVT_MIDDLE_UP;
1676             break;
1677
1678         case 3:
1679             event_type = wxEVT_RIGHT_UP;
1680             break;
1681
1682         default:
1683             // unknwon button, don't process
1684             return FALSE;
1685     }
1686
1687     g_lastMouseEvent = (GdkEvent*) gdk_event;
1688
1689     wxMouseEvent event( event_type );
1690     InitMouseEvent( win, event, gdk_event );
1691
1692     AdjustEventButtonState(event);
1693
1694     // same wxListBox hack as above
1695     win->FixUpMouseEvent(widget, event.m_x, event.m_y);
1696
1697     if ( !g_captureWindow )
1698         win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1699
1700     if (win->HandleWindowEvent( event ))
1701     {
1702         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "button_release_event" );
1703         return TRUE;
1704     }
1705
1706     return FALSE;
1707 }
1708 }
1709
1710 //-----------------------------------------------------------------------------
1711 // "motion_notify_event"
1712 //-----------------------------------------------------------------------------
1713
1714 extern "C" {
1715 static gint gtk_window_motion_notify_callback( GtkWidget *widget,
1716                                                GdkEventMotion *gdk_event,
1717                                                wxWindowGTK *win )
1718 {
1719     DEBUG_MAIN_THREAD
1720
1721     if (g_isIdle)
1722         wxapp_install_idle_handler();
1723
1724     if (!win->m_hasVMT) return FALSE;
1725     if (g_blockEventsOnDrag) return FALSE;
1726     if (g_blockEventsOnScroll) return FALSE;
1727
1728     if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
1729
1730     if (gdk_event->is_hint)
1731     {
1732         int x = 0;
1733         int y = 0;
1734         GdkModifierType state;
1735         gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
1736         gdk_event->x = x;
1737         gdk_event->y = y;
1738     }
1739
1740     g_lastMouseEvent = (GdkEvent*) gdk_event;
1741
1742 /*
1743     printf( "OnMotion from " );
1744     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
1745       printf( win->GetClassInfo()->GetClassName() );
1746     printf( ".\n" );
1747 */
1748
1749     wxMouseEvent event( wxEVT_MOTION );
1750     InitMouseEvent(win, event, gdk_event);
1751
1752     if ( g_captureWindow )
1753     {
1754         // synthetize a mouse enter or leave event if needed
1755         GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
1756         // This seems to be necessary and actually been added to
1757         // GDK itself in version 2.0.X
1758         gdk_flush();
1759
1760         bool hasMouse = winUnderMouse == gdk_event->window;
1761         if ( hasMouse != g_captureWindowHasMouse )
1762         {
1763             // the mouse changed window
1764             g_captureWindowHasMouse = hasMouse;
1765
1766             wxMouseEvent eventM(g_captureWindowHasMouse ? wxEVT_ENTER_WINDOW
1767                                                         : wxEVT_LEAVE_WINDOW);
1768             InitMouseEvent(win, eventM, gdk_event);
1769             eventM.SetEventObject(win);
1770             win->HandleWindowEvent(eventM);
1771         }
1772     }
1773     else // no capture
1774     {
1775         win = FindWindowForMouseEvent(win, event.m_x, event.m_y);
1776     }
1777
1778     bool ret = win->HandleWindowEvent( event );
1779     g_lastMouseEvent = NULL;
1780
1781     if ( ret )
1782     {
1783         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "motion_notify_event" );
1784     }
1785
1786     return ret ? TRUE : FALSE;
1787 }
1788 }
1789
1790 //-----------------------------------------------------------------------------
1791 // "focus_in_event"
1792 //-----------------------------------------------------------------------------
1793
1794 // send the wxChildFocusEvent and wxFocusEvent, common code of
1795 // gtk_window_focus_in_callback() and SetFocus()
1796 static bool DoSendFocusEvents(wxWindow *win)
1797 {
1798     // Notify the parent keeping track of focus for the kbd navigation
1799     // purposes that we got it.
1800     wxChildFocusEvent eventChildFocus(win);
1801     (void)win->HandleWindowEvent(eventChildFocus);
1802
1803     wxFocusEvent eventFocus(wxEVT_SET_FOCUS, win->GetId());
1804     eventFocus.SetEventObject(win);
1805
1806     return win->HandleWindowEvent(eventFocus);
1807 }
1808
1809 extern "C" {
1810 static gint gtk_window_focus_in_callback( GtkWidget *widget,
1811                                           GdkEvent *WXUNUSED(event),
1812                                           wxWindow *win )
1813 {
1814     DEBUG_MAIN_THREAD
1815
1816     if (g_isIdle)
1817         wxapp_install_idle_handler();
1818
1819     g_focusWindowLast =
1820     g_focusWindow = win;
1821
1822     wxLogTrace(TRACE_FOCUS,
1823                _T("%s: focus in"), win->GetName().c_str());
1824
1825 #ifdef HAVE_XIM
1826     if (win->m_ic)
1827         gdk_im_begin(win->m_ic, win->m_wxwindow->window);
1828 #endif
1829
1830 #if wxUSE_CARET
1831     // caret needs to be informed about focus change
1832     wxCaret *caret = win->GetCaret();
1833     if ( caret )
1834     {
1835         caret->OnSetFocus();
1836     }
1837 #endif // wxUSE_CARET
1838
1839     // does the window itself think that it has the focus?
1840     if ( !win->m_hasFocus )
1841     {
1842         // not yet, notify it
1843         win->m_hasFocus = true;
1844
1845         if ( DoSendFocusEvents(win) )
1846         {
1847            gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus_in_event" );
1848            return TRUE;
1849         }
1850     }
1851
1852     return FALSE;
1853 }
1854 }
1855
1856 //-----------------------------------------------------------------------------
1857 // "focus_out_event"
1858 //-----------------------------------------------------------------------------
1859
1860 extern "C" {
1861 static gint gtk_window_focus_out_callback( GtkWidget *WXUNUSED(widget),
1862                                            GdkEventFocus *WXUNUSED(gdk_event),
1863                                            wxWindowGTK *win )
1864 {
1865     DEBUG_MAIN_THREAD
1866
1867     if (g_isIdle)
1868         wxapp_install_idle_handler();
1869
1870     wxLogTrace( TRACE_FOCUS,
1871                 _T("%s: focus out"), win->GetName().c_str() );
1872
1873
1874     wxWindowGTK *winFocus = wxFindFocusedChild(win);
1875     if ( winFocus )
1876         win = winFocus;
1877
1878     g_focusWindow = NULL;
1879
1880 #ifdef HAVE_XIM
1881     if (win->m_ic)
1882         gdk_im_end();
1883 #endif
1884
1885 #if wxUSE_CARET
1886     // caret needs to be informed about focus change
1887     wxCaret *caret = win->GetCaret();
1888     if ( caret )
1889     {
1890         caret->OnKillFocus();
1891     }
1892 #endif // wxUSE_CARET
1893
1894     // don't send the window a kill focus event if it thinks that it doesn't
1895     // have focus already
1896     if ( win->m_hasFocus )
1897     {
1898         win->m_hasFocus = false;
1899
1900         wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
1901         event.SetEventObject( win );
1902
1903         // even if we did process the event in wx code, still let GTK itself
1904         // process it too as otherwise bad things happen, especially in GTK2
1905         // where the text control simply aborts the program if it doesn't get
1906         // the matching focus out event
1907         (void)win->HandleWindowEvent( event );
1908     }
1909
1910     return FALSE;
1911 }
1912 }
1913
1914 //-----------------------------------------------------------------------------
1915 // "enter_notify_event"
1916 //-----------------------------------------------------------------------------
1917
1918 extern "C" {
1919 static
1920 gint gtk_window_enter_callback( GtkWidget *widget,
1921                                 GdkEventCrossing *gdk_event,
1922                                 wxWindowGTK *win )
1923 {
1924     DEBUG_MAIN_THREAD
1925
1926     if (g_isIdle)
1927         wxapp_install_idle_handler();
1928
1929     if (!win->m_hasVMT) return FALSE;
1930     if (g_blockEventsOnDrag) return FALSE;
1931
1932     // Event was emitted after a grab
1933     if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1934
1935     if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
1936
1937     int x = 0;
1938     int y = 0;
1939     GdkModifierType state = (GdkModifierType)0;
1940
1941     gdk_window_get_pointer( widget->window, &x, &y, &state );
1942
1943     wxMouseEvent event( wxEVT_ENTER_WINDOW );
1944     InitMouseEvent(win, event, gdk_event);
1945     wxPoint pt = win->GetClientAreaOrigin();
1946     event.m_x = x + pt.x;
1947     event.m_y = y + pt.y;
1948
1949     if (win->HandleWindowEvent( event ))
1950     {
1951        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "enter_notify_event" );
1952        return TRUE;
1953     }
1954
1955     return FALSE;
1956 }
1957 }
1958
1959 //-----------------------------------------------------------------------------
1960 // "leave_notify_event"
1961 //-----------------------------------------------------------------------------
1962
1963 extern "C" {
1964 static gint gtk_window_leave_callback( GtkWidget *widget, GdkEventCrossing *gdk_event, wxWindowGTK *win )
1965 {
1966     DEBUG_MAIN_THREAD
1967
1968     if (g_isIdle)
1969         wxapp_install_idle_handler();
1970
1971     if (!win->m_hasVMT) return FALSE;
1972     if (g_blockEventsOnDrag) return FALSE;
1973
1974     // Event was emitted after an ungrab
1975     if (gdk_event->mode != GDK_CROSSING_NORMAL) return FALSE;
1976
1977     if (!win->IsOwnGtkWindow( gdk_event->window )) return FALSE;
1978
1979     wxMouseEvent event( wxEVT_LEAVE_WINDOW );
1980     event.SetTimestamp( gdk_event->time );
1981     event.SetEventObject( win );
1982
1983     int x = 0;
1984     int y = 0;
1985     GdkModifierType state = (GdkModifierType)0;
1986
1987     gdk_window_get_pointer( widget->window, &x, &y, &state );
1988
1989     event.m_shiftDown = (state & GDK_SHIFT_MASK) != 0;
1990     event.m_controlDown = (state & GDK_CONTROL_MASK) != 0;
1991     event.m_altDown = (state & GDK_MOD1_MASK) != 0;
1992     event.m_metaDown = (state & GDK_MOD2_MASK) != 0;
1993     event.m_leftDown = (state & GDK_BUTTON1_MASK) != 0;
1994     event.m_middleDown = (state & GDK_BUTTON2_MASK) != 0;
1995     event.m_rightDown = (state & GDK_BUTTON3_MASK) != 0;
1996
1997     wxPoint pt = win->GetClientAreaOrigin();
1998     event.m_x = x + pt.x;
1999     event.m_y = y + pt.y;
2000
2001     if (win->HandleWindowEvent( event ))
2002     {
2003         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "leave_notify_event" );
2004         return TRUE;
2005     }
2006
2007     return FALSE;
2008 }
2009 }
2010
2011 //-----------------------------------------------------------------------------
2012 // "value_changed" from m_vAdjust
2013 //-----------------------------------------------------------------------------
2014
2015 extern "C" {
2016 static void gtk_window_vscroll_callback( GtkAdjustment *adjust,
2017                                          SCROLLBAR_CBACK_ARG
2018                                          wxWindowGTK *win )
2019 {
2020     DEBUG_MAIN_THREAD
2021
2022     if (g_isIdle)
2023         wxapp_install_idle_handler();
2024
2025     if (g_blockEventsOnDrag) return;
2026
2027     if (!win->m_hasVMT) return;
2028
2029     float diff = adjust->value - win->m_oldVerticalPos;
2030     if (fabs(diff) < 0.2) return;
2031
2032     win->m_oldVerticalPos = adjust->value;
2033
2034     GtkScrolledWindow   *sw = GTK_SCROLLED_WINDOW(win->m_widget);
2035     wxEventType         command = GtkScrollWinTypeToWx(GET_SCROLL_TYPE(sw->vscrollbar));
2036
2037     int value = (int)(adjust->value+0.5);
2038
2039     wxScrollWinEvent event( command, value, wxVERTICAL );
2040     event.SetEventObject( win );
2041     win->HandleWindowEvent( event );
2042 }
2043 }
2044
2045 //-----------------------------------------------------------------------------
2046 // "value_changed" from m_hAdjust
2047 //-----------------------------------------------------------------------------
2048
2049 extern "C" {
2050 static void gtk_window_hscroll_callback( GtkAdjustment *adjust,
2051                                          SCROLLBAR_CBACK_ARG
2052                                          wxWindowGTK *win )
2053 {
2054     DEBUG_MAIN_THREAD
2055
2056     if (g_isIdle)
2057         wxapp_install_idle_handler();
2058
2059     if (g_blockEventsOnDrag) return;
2060     if (!win->m_hasVMT) return;
2061
2062     float diff = adjust->value - win->m_oldHorizontalPos;
2063     if (fabs(diff) < 0.2) return;
2064
2065     GtkScrolledWindow   *sw = GTK_SCROLLED_WINDOW(win->m_widget);
2066     wxEventType         command = GtkScrollWinTypeToWx(GET_SCROLL_TYPE(sw->hscrollbar));
2067
2068     win->m_oldHorizontalPos = adjust->value;
2069
2070     int value = (int)(adjust->value+0.5);
2071
2072     wxScrollWinEvent event( command, value, wxHORIZONTAL );
2073     event.SetEventObject( win );
2074     win->HandleWindowEvent( event );
2075 }
2076 }
2077
2078 //-----------------------------------------------------------------------------
2079 // "button_press_event" from scrollbar
2080 //-----------------------------------------------------------------------------
2081
2082 extern "C" {
2083 static gint gtk_scrollbar_button_press_callback( GtkRange *widget,
2084                                                  GdkEventButton *gdk_event,
2085                                                  wxWindowGTK *win)
2086 {
2087     DEBUG_MAIN_THREAD
2088
2089     if (g_isIdle)
2090         wxapp_install_idle_handler();
2091
2092
2093     g_blockEventsOnScroll = true;
2094
2095     // FIXME: there is no 'slider' field in GTK+ 2.0 any more
2096     win->m_isScrolling = (gdk_event->window == widget->slider);
2097
2098     return FALSE;
2099 }
2100 }
2101
2102 //-----------------------------------------------------------------------------
2103 // "button_release_event" from scrollbar
2104 //-----------------------------------------------------------------------------
2105
2106 extern "C" {
2107 static gint gtk_scrollbar_button_release_callback( GtkRange *widget,
2108                                                    GdkEventButton *WXUNUSED(gdk_event),
2109                                                    wxWindowGTK *win)
2110 {
2111     DEBUG_MAIN_THREAD
2112
2113 //  don't test here as we can release the mouse while being over
2114 //  a different window than the slider
2115 //
2116 //    if (gdk_event->window != widget->slider) return FALSE;
2117
2118     g_blockEventsOnScroll = false;
2119
2120     if (win->m_isScrolling)
2121     {
2122         wxEventType command = wxEVT_SCROLLWIN_THUMBRELEASE;
2123         int value = -1;
2124         int dir = -1;
2125
2126         GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(win->m_widget);
2127         if (widget == GTK_RANGE(scrolledWindow->hscrollbar))
2128         {
2129             value = (int)(win->m_hAdjust->value+0.5);
2130             dir = wxHORIZONTAL;
2131         }
2132         if (widget == GTK_RANGE(scrolledWindow->vscrollbar))
2133         {
2134             value = (int)(win->m_vAdjust->value+0.5);
2135             dir = wxVERTICAL;
2136         }
2137
2138         wxScrollWinEvent event( command, value, dir );
2139         event.SetEventObject( win );
2140         win->HandleWindowEvent( event );
2141     }
2142
2143     win->m_isScrolling = false;
2144
2145     return FALSE;
2146 }
2147 }
2148
2149 // ----------------------------------------------------------------------------
2150 // this wxWindowBase function is implemented here (in platform-specific file)
2151 // because it is static and so couldn't be made virtual
2152 // ----------------------------------------------------------------------------
2153
2154 wxWindow *wxWindowBase::DoFindFocus()
2155 {
2156     // the cast is necessary when we compile in wxUniversal mode
2157     return (wxWindow *)g_focusWindow;
2158 }
2159
2160 //-----------------------------------------------------------------------------
2161 // "realize" from m_widget
2162 //-----------------------------------------------------------------------------
2163
2164 /* We cannot set colours and fonts before the widget has
2165    been realized, so we do this directly after realization. */
2166
2167 extern "C" {
2168 static gint
2169 gtk_window_realized_callback( GtkWidget *WXUNUSED(widget), wxWindow *win )
2170 {
2171     DEBUG_MAIN_THREAD
2172
2173     if (g_isIdle)
2174         wxapp_install_idle_handler();
2175
2176     wxWindowCreateEvent event( win );
2177     event.SetEventObject( win );
2178     win->HandleWindowEvent( event );
2179
2180     return FALSE;
2181 }
2182 }
2183
2184 //-----------------------------------------------------------------------------
2185 // "size_allocate"
2186 //-----------------------------------------------------------------------------
2187
2188 extern "C" {
2189 static
2190 void gtk_window_size_callback( GtkWidget *WXUNUSED(widget),
2191                                GtkAllocation *WXUNUSED(alloc),
2192                                wxWindow *win )
2193 {
2194     if (g_isIdle)
2195         wxapp_install_idle_handler();
2196
2197     if (!win->m_hasScrolling) return;
2198
2199     int client_width = 0;
2200     int client_height = 0;
2201     win->GetClientSize( &client_width, &client_height );
2202     if ((client_width == win->m_oldClientWidth) && (client_height == win->m_oldClientHeight))
2203         return;
2204
2205     win->m_oldClientWidth = client_width;
2206     win->m_oldClientHeight = client_height;
2207
2208     if (!win->m_nativeSizeEvent)
2209     {
2210         wxSizeEvent event( win->GetSize(), win->GetId() );
2211         event.SetEventObject( win );
2212         win->HandleWindowEvent( event );
2213     }
2214 }
2215 }
2216
2217
2218 #ifdef HAVE_XIM
2219     #define WXUNUSED_UNLESS_XIM(param)  param
2220 #else
2221     #define WXUNUSED_UNLESS_XIM(param)  WXUNUSED(param)
2222 #endif
2223
2224 /* Resize XIM window */
2225
2226 extern "C" {
2227 static
2228 void gtk_wxwindow_size_callback( GtkWidget* WXUNUSED_UNLESS_XIM(widget),
2229                                  GtkAllocation* WXUNUSED(alloc),
2230                                  wxWindowGTK* WXUNUSED_UNLESS_XIM(win) )
2231 {
2232     if (g_isIdle)
2233         wxapp_install_idle_handler();
2234
2235 #ifdef HAVE_XIM
2236     if (!win->m_ic)
2237         return;
2238
2239     if  (gdk_ic_get_style (win->m_ic) & GDK_IM_PREEDIT_POSITION)
2240     {
2241         gint width, height;
2242
2243         gdk_window_get_size (widget->window, &width, &height);
2244         win->m_icattr->preedit_area.width = width;
2245         win->m_icattr->preedit_area.height = height;
2246         gdk_ic_set_attr (win->m_ic, win->m_icattr, GDK_IC_PREEDIT_AREA);
2247     }
2248 #endif // HAVE_XIM
2249 }
2250 }
2251
2252 //-----------------------------------------------------------------------------
2253 // "realize" from m_wxwindow
2254 //-----------------------------------------------------------------------------
2255
2256 /* Initialize XIM support */
2257
2258 extern "C" {
2259 static gint
2260 gtk_wxwindow_realized_callback( GtkWidget * WXUNUSED_UNLESS_XIM(widget),
2261                                 wxWindowGTK * WXUNUSED_UNLESS_XIM(win) )
2262 {
2263     if (g_isIdle)
2264         wxapp_install_idle_handler();
2265
2266 #ifdef HAVE_XIM
2267     if (win->m_ic) return FALSE;
2268     if (!widget) return FALSE;
2269     if (!gdk_im_ready()) return FALSE;
2270
2271     win->m_icattr = gdk_ic_attr_new();
2272     if (!win->m_icattr) return FALSE;
2273
2274     gint width, height;
2275     GdkEventMask mask;
2276     GdkColormap *colormap;
2277     GdkICAttr *attr = win->m_icattr;
2278     unsigned attrmask = GDK_IC_ALL_REQ;
2279     GdkIMStyle style;
2280     GdkIMStyle supported_style = (GdkIMStyle)
2281                                   (GDK_IM_PREEDIT_NONE |
2282                                    GDK_IM_PREEDIT_NOTHING |
2283                                    GDK_IM_PREEDIT_POSITION |
2284                                    GDK_IM_STATUS_NONE |
2285                                    GDK_IM_STATUS_NOTHING);
2286
2287     if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
2288         supported_style = (GdkIMStyle)(supported_style & ~GDK_IM_PREEDIT_POSITION);
2289
2290     attr->style = style = gdk_im_decide_style (supported_style);
2291     attr->client_window = widget->window;
2292
2293     if ((colormap = gtk_widget_get_colormap (widget)) !=
2294             gtk_widget_get_default_colormap ())
2295     {
2296         attrmask |= GDK_IC_PREEDIT_COLORMAP;
2297         attr->preedit_colormap = colormap;
2298     }
2299
2300     attrmask |= GDK_IC_PREEDIT_FOREGROUND;
2301     attrmask |= GDK_IC_PREEDIT_BACKGROUND;
2302     attr->preedit_foreground = widget->style->fg[GTK_STATE_NORMAL];
2303     attr->preedit_background = widget->style->base[GTK_STATE_NORMAL];
2304
2305     switch (style & GDK_IM_PREEDIT_MASK)
2306     {
2307         case GDK_IM_PREEDIT_POSITION:
2308             if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
2309             {
2310                 g_warning ("over-the-spot style requires fontset");
2311                 break;
2312             }
2313
2314             gdk_window_get_size (widget->window, &width, &height);
2315
2316             attrmask |= GDK_IC_PREEDIT_POSITION_REQ;
2317             attr->spot_location.x = 0;
2318             attr->spot_location.y = height;
2319             attr->preedit_area.x = 0;
2320             attr->preedit_area.y = 0;
2321             attr->preedit_area.width = width;
2322             attr->preedit_area.height = height;
2323             attr->preedit_fontset = widget->style->font;
2324
2325             break;
2326     }
2327
2328       win->m_ic = gdk_ic_new (attr, (GdkICAttributesType)attrmask);
2329
2330       if (win->m_ic == NULL)
2331           g_warning ("Can't create input context.");
2332       else
2333       {
2334           mask = gdk_window_get_events (widget->window);
2335           mask = (GdkEventMask)(mask | gdk_ic_get_events (win->m_ic));
2336           gdk_window_set_events (widget->window, mask);
2337
2338           if (GTK_WIDGET_HAS_FOCUS(widget))
2339               gdk_im_begin (win->m_ic, widget->window);
2340       }
2341 #endif // HAVE_XIM
2342
2343     return FALSE;
2344 }
2345 }
2346
2347 //-----------------------------------------------------------------------------
2348 // InsertChild for wxWindowGTK.
2349 //-----------------------------------------------------------------------------
2350
2351 /* Callback for wxWindowGTK. This very strange beast has to be used because
2352  * C++ has no virtual methods in a constructor. We have to emulate a
2353  * virtual function here as wxNotebook requires a different way to insert
2354  * a child in it. I had opted for creating a wxNotebookPage window class
2355  * which would have made this superfluous (such in the MDI window system),
2356  * but no-one was listening to me... */
2357
2358 static void wxInsertChildInWindow( wxWindowGTK* parent, wxWindowGTK* child )
2359 {
2360     /* the window might have been scrolled already, do we
2361        have to adapt the position */
2362     GtkPizza *pizza = GTK_PIZZA(parent->m_wxwindow);
2363     child->m_x += pizza->xoffset;
2364     child->m_y += pizza->yoffset;
2365
2366     gtk_pizza_put( GTK_PIZZA(parent->m_wxwindow),
2367                      GTK_WIDGET(child->m_widget),
2368                      child->m_x,
2369                      child->m_y,
2370                      child->m_width,
2371                      child->m_height );
2372 }
2373
2374 //-----------------------------------------------------------------------------
2375 // global functions
2376 //-----------------------------------------------------------------------------
2377
2378 wxWindow *wxGetActiveWindow()
2379 {
2380     return wxWindow::FindFocus();
2381 }
2382
2383
2384 wxMouseState wxGetMouseState()
2385 {
2386     wxMouseState ms;
2387
2388     gint x;
2389     gint y;
2390     GdkModifierType mask;
2391
2392     gdk_window_get_pointer(NULL, &x, &y, &mask);
2393
2394     ms.SetX(x);
2395     ms.SetY(y);
2396     ms.SetLeftDown(mask & GDK_BUTTON1_MASK);
2397     ms.SetMiddleDown(mask & GDK_BUTTON2_MASK);
2398     ms.SetRightDown(mask & GDK_BUTTON3_MASK);
2399
2400     ms.SetControlDown(mask & GDK_CONTROL_MASK);
2401     ms.SetShiftDown(mask & GDK_SHIFT_MASK);
2402     ms.SetAltDown(mask & GDK_MOD1_MASK);
2403     ms.SetMetaDown(mask & GDK_MOD2_MASK);
2404
2405     return ms;
2406 }
2407
2408 //-----------------------------------------------------------------------------
2409 // wxWindowGTK
2410 //-----------------------------------------------------------------------------
2411
2412 // in wxUniv/MSW this class is abstract because it doesn't have DoPopupMenu()
2413 // method
2414 #ifdef __WXUNIVERSAL__
2415     IMPLEMENT_ABSTRACT_CLASS(wxWindowGTK, wxWindowBase)
2416 #else // __WXGTK__
2417     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
2418 #endif // __WXUNIVERSAL__/__WXGTK__
2419
2420 void wxWindowGTK::Init()
2421 {
2422     // GTK specific
2423     m_widget = NULL;
2424     m_wxwindow = NULL;
2425     m_focusWidget = NULL;
2426
2427     // position/size
2428     m_x = 0;
2429     m_y = 0;
2430     m_width = 0;
2431     m_height = 0;
2432
2433     m_sizeSet = false;
2434     m_hasVMT = false;
2435     m_needParent = true;
2436
2437     m_noExpose = false;
2438     m_nativeSizeEvent = false;
2439
2440     m_hasScrolling = false;
2441     m_isScrolling = false;
2442
2443     m_hAdjust = NULL;
2444     m_vAdjust = NULL;
2445     m_oldHorizontalPos =
2446     m_oldVerticalPos = 0.0;
2447     m_oldClientWidth =
2448     m_oldClientHeight = 0;
2449
2450     m_resizing = false;
2451
2452     m_insertCallback = (wxInsertChildFunction) NULL;
2453
2454     m_acceptsFocus = false;
2455     m_hasFocus = false;
2456
2457     m_clipPaintRegion = false;
2458
2459     m_needsStyleChange = false;
2460
2461     m_cursor = *wxSTANDARD_CURSOR;
2462
2463 #ifdef HAVE_XIM
2464     m_ic = NULL;
2465     m_icattr = NULL;
2466 #endif
2467 }
2468
2469 wxWindowGTK::wxWindowGTK()
2470 {
2471     Init();
2472 }
2473
2474 wxWindowGTK::wxWindowGTK( wxWindow *parent,
2475                           wxWindowID id,
2476                           const wxPoint &pos,
2477                           const wxSize &size,
2478                           long style,
2479                           const wxString &name  )
2480 {
2481     Init();
2482
2483     Create( parent, id, pos, size, style, name );
2484 }
2485
2486 bool wxWindowGTK::Create( wxWindow *parent,
2487                           wxWindowID id,
2488                           const wxPoint &pos,
2489                           const wxSize &size,
2490                           long style,
2491                           const wxString &name  )
2492 {
2493     // Get default border
2494     wxBorder border = GetBorder(style);
2495     style &= ~wxBORDER_MASK;
2496     style |= border;
2497
2498     if (!PreCreation( parent, pos, size ) ||
2499         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
2500     {
2501         wxFAIL_MSG( wxT("wxWindowGTK creation failed") );
2502         return false;
2503     }
2504
2505     m_insertCallback = wxInsertChildInWindow;
2506
2507     m_widget = gtk_scrolled_window_new( NULL, NULL );
2508     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
2509
2510     GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
2511
2512     GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
2513     scroll_class->scrollbar_spacing = 0;
2514
2515     gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
2516
2517     m_hAdjust = gtk_range_get_adjustment( GTK_RANGE(scrolledWindow->hscrollbar) );
2518     m_vAdjust = gtk_range_get_adjustment( GTK_RANGE(scrolledWindow->vscrollbar) );
2519
2520     m_wxwindow = gtk_pizza_new();
2521
2522 #ifndef __WXUNIVERSAL__
2523     GtkPizza *pizza = GTK_PIZZA(m_wxwindow);
2524
2525     if (HasFlag(wxRAISED_BORDER))
2526     {
2527         gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_OUT );
2528     }
2529     else if (HasFlag(wxSUNKEN_BORDER) || HasFlag(wxBORDER_THEME))
2530     {
2531         gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_IN );
2532     }
2533     else if (HasFlag(wxSIMPLE_BORDER))
2534     {
2535         gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_THIN );
2536     }
2537     else
2538     {
2539         gtk_pizza_set_shadow_type( pizza, GTK_MYSHADOW_NONE );
2540     }
2541 #endif // __WXUNIVERSAL__
2542
2543     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
2544
2545     GTK_WIDGET_SET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
2546     m_acceptsFocus = true;
2547
2548     // I _really_ don't want scrollbars in the beginning
2549     m_vAdjust->lower = 0.0;
2550     m_vAdjust->upper = 1.0;
2551     m_vAdjust->value = 0.0;
2552     m_vAdjust->step_increment = 1.0;
2553     m_vAdjust->page_increment = 1.0;
2554     m_vAdjust->page_size = 5.0;
2555     gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" );
2556     m_hAdjust->lower = 0.0;
2557     m_hAdjust->upper = 1.0;
2558     m_hAdjust->value = 0.0;
2559     m_hAdjust->step_increment = 1.0;
2560     m_hAdjust->page_increment = 1.0;
2561     m_hAdjust->page_size = 5.0;
2562     gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
2563
2564     // these handlers block mouse events to any window during scrolling such as
2565     // motion events and prevent GTK and wxWidgets from fighting over where the
2566     // slider should be
2567
2568     gtk_signal_connect( GTK_OBJECT(scrolledWindow->vscrollbar), "button_press_event",
2569           (GtkSignalFunc)gtk_scrollbar_button_press_callback, (gpointer) this );
2570
2571     gtk_signal_connect( GTK_OBJECT(scrolledWindow->hscrollbar), "button_press_event",
2572           (GtkSignalFunc)gtk_scrollbar_button_press_callback, (gpointer) this );
2573
2574     gtk_signal_connect( GTK_OBJECT(scrolledWindow->vscrollbar), "button_release_event",
2575           (GtkSignalFunc)gtk_scrollbar_button_release_callback, (gpointer) this );
2576
2577     gtk_signal_connect( GTK_OBJECT(scrolledWindow->hscrollbar), "button_release_event",
2578           (GtkSignalFunc)gtk_scrollbar_button_release_callback, (gpointer) this );
2579
2580     // these handlers get notified when screen updates are required either when
2581     // scrolling or when the window size (and therefore scrollbar configuration)
2582     // has changed
2583
2584     gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed",
2585           (GtkSignalFunc) gtk_window_hscroll_callback, (gpointer) this );
2586     gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed",
2587           (GtkSignalFunc) gtk_window_vscroll_callback, (gpointer) this );
2588
2589     gtk_widget_show( m_wxwindow );
2590
2591     if (m_parent)
2592         m_parent->DoAddChild( this );
2593
2594     m_focusWidget = m_wxwindow;
2595
2596     PostCreation();
2597
2598     return true;
2599 }
2600
2601 wxWindowGTK::~wxWindowGTK()
2602 {
2603     SendDestroyEvent();
2604
2605     if (g_focusWindow == this)
2606         g_focusWindow = NULL;
2607
2608     if ( g_delayedFocus == this )
2609         g_delayedFocus = NULL;
2610
2611     m_hasVMT = false;
2612
2613     // destroy children before destroying this window itself
2614     DestroyChildren();
2615
2616     // unhook focus handlers to prevent stray events being
2617     // propagated to this (soon to be) dead object
2618     if (m_focusWidget != NULL)
2619     {
2620         gtk_signal_disconnect_by_func( GTK_OBJECT(m_focusWidget),
2621             (GtkSignalFunc) gtk_window_focus_in_callback, (gpointer) this );
2622         gtk_signal_disconnect_by_func( GTK_OBJECT(m_focusWidget),
2623             (GtkSignalFunc) gtk_window_focus_out_callback, (gpointer) this );
2624     }
2625
2626     if (m_widget)
2627         Show( false );
2628
2629 #ifdef HAVE_XIM
2630     if (m_ic)
2631         gdk_ic_destroy (m_ic);
2632     if (m_icattr)
2633         gdk_ic_attr_destroy (m_icattr);
2634 #endif
2635
2636     if (m_wxwindow)
2637     {
2638         gtk_widget_destroy( m_wxwindow );
2639         m_wxwindow = NULL;
2640     }
2641
2642     if (m_widget)
2643     {
2644         gtk_widget_destroy( m_widget );
2645         m_widget = NULL;
2646     }
2647 }
2648
2649 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos,  const wxSize &size )
2650 {
2651     wxCHECK_MSG( !m_needParent || parent, false, wxT("Need complete parent.") );
2652
2653     // Use either the given size, or the default if -1 is given.
2654     // See wxWindowBase for these functions.
2655     m_width = WidthDefault(size.x) ;
2656     m_height = HeightDefault(size.y);
2657
2658     m_x = (int)pos.x;
2659     m_y = (int)pos.y;
2660
2661     return true;
2662 }
2663
2664 void wxWindowGTK::PostCreation()
2665 {
2666     wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2667
2668     if (m_wxwindow)
2669     {
2670         if (!m_noExpose)
2671         {
2672             // these get reported to wxWidgets -> wxPaintEvent
2673
2674             gtk_pizza_set_external( GTK_PIZZA(m_wxwindow), TRUE );
2675
2676             gtk_signal_connect( GTK_OBJECT(m_wxwindow), "expose_event",
2677                 GTK_SIGNAL_FUNC(gtk_window_expose_callback), (gpointer)this );
2678
2679             gtk_signal_connect( GTK_OBJECT(m_wxwindow), "draw",
2680                 GTK_SIGNAL_FUNC(gtk_window_draw_callback), (gpointer)this );
2681
2682             if (!HasFlag(wxFULL_REPAINT_ON_RESIZE))
2683             {
2684                 gtk_signal_connect( GTK_OBJECT(m_wxwindow), "event",
2685                     GTK_SIGNAL_FUNC(gtk_window_event_event_callback), (gpointer)this );
2686             }
2687         }
2688
2689         // these are called when the "sunken" or "raised" borders are drawn
2690         gtk_signal_connect( GTK_OBJECT(m_widget), "expose_event",
2691           GTK_SIGNAL_FUNC(gtk_window_own_expose_callback), (gpointer)this );
2692
2693         gtk_signal_connect( GTK_OBJECT(m_widget), "draw",
2694           GTK_SIGNAL_FUNC(gtk_window_own_draw_callback), (gpointer)this );
2695     }
2696
2697     // focus handling
2698
2699     if (!GTK_IS_WINDOW(m_widget))
2700     {
2701         if (m_focusWidget == NULL)
2702             m_focusWidget = m_widget;
2703
2704         gtk_signal_connect( GTK_OBJECT(m_focusWidget), "focus_in_event",
2705             GTK_SIGNAL_FUNC(gtk_window_focus_in_callback), (gpointer)this );
2706
2707         gtk_signal_connect_after( GTK_OBJECT(m_focusWidget), "focus_out_event",
2708             GTK_SIGNAL_FUNC(gtk_window_focus_out_callback), (gpointer)this );
2709     }
2710
2711     // connect to the various key and mouse handlers
2712
2713     GtkWidget *connect_widget = GetConnectWidget();
2714
2715     ConnectWidget( connect_widget );
2716
2717     /* We cannot set colours, fonts and cursors before the widget has
2718        been realized, so we do this directly after realization */
2719     gtk_signal_connect( GTK_OBJECT(connect_widget), "realize",
2720                             GTK_SIGNAL_FUNC(gtk_window_realized_callback), (gpointer) this );
2721
2722     if (m_wxwindow)
2723     {
2724         // Catch native resize events
2725         gtk_signal_connect( GTK_OBJECT(m_wxwindow), "size_allocate",
2726                             GTK_SIGNAL_FUNC(gtk_window_size_callback), (gpointer)this );
2727
2728         // Initialize XIM support
2729         gtk_signal_connect( GTK_OBJECT(m_wxwindow), "realize",
2730                             GTK_SIGNAL_FUNC(gtk_wxwindow_realized_callback), (gpointer) this );
2731
2732         // And resize XIM window
2733         gtk_signal_connect( GTK_OBJECT(m_wxwindow), "size_allocate",
2734                             GTK_SIGNAL_FUNC(gtk_wxwindow_size_callback), (gpointer)this );
2735     }
2736
2737     if (GTK_IS_COMBO(m_widget))
2738     {
2739         GtkCombo *gcombo = GTK_COMBO(m_widget);
2740
2741         gtk_signal_connect( GTK_OBJECT(gcombo->entry), "size_request",
2742                             GTK_SIGNAL_FUNC(wxgtk_combo_size_request_callback),
2743                             (gpointer) this );
2744     }
2745     else
2746     {
2747         // This is needed if we want to add our windows into native
2748         // GTK controls, such as the toolbar. With this callback, the
2749         // toolbar gets to know the correct size (the one set by the
2750         // programmer). Sadly, it misbehaves for wxComboBox.
2751         gtk_signal_connect( GTK_OBJECT(m_widget), "size_request",
2752                             GTK_SIGNAL_FUNC(wxgtk_window_size_request_callback),
2753                             (gpointer) this );
2754     }
2755
2756     InheritAttributes();
2757
2758     m_hasVMT = true;
2759
2760     // unless the window was created initially hidden (i.e. Hide() had been
2761     // called before Create()), we should show it at GTK+ level as well
2762     if ( IsShown() )
2763         gtk_widget_show( m_widget );
2764 }
2765
2766 void wxWindowGTK::ConnectWidget( GtkWidget *widget )
2767 {
2768     gtk_signal_connect( GTK_OBJECT(widget), "key_press_event",
2769       GTK_SIGNAL_FUNC(gtk_window_key_press_callback), (gpointer)this );
2770
2771     gtk_signal_connect( GTK_OBJECT(widget), "key_release_event",
2772       GTK_SIGNAL_FUNC(gtk_window_key_release_callback), (gpointer)this );
2773
2774     gtk_signal_connect( GTK_OBJECT(widget), "button_press_event",
2775       GTK_SIGNAL_FUNC(gtk_window_button_press_callback), (gpointer)this );
2776
2777     gtk_signal_connect( GTK_OBJECT(widget), "button_release_event",
2778       GTK_SIGNAL_FUNC(gtk_window_button_release_callback), (gpointer)this );
2779
2780     gtk_signal_connect( GTK_OBJECT(widget), "motion_notify_event",
2781       GTK_SIGNAL_FUNC(gtk_window_motion_notify_callback), (gpointer)this );
2782
2783     gtk_signal_connect( GTK_OBJECT(widget), "enter_notify_event",
2784       GTK_SIGNAL_FUNC(gtk_window_enter_callback), (gpointer)this );
2785
2786     gtk_signal_connect( GTK_OBJECT(widget), "leave_notify_event",
2787       GTK_SIGNAL_FUNC(gtk_window_leave_callback), (gpointer)this );
2788 }
2789
2790 bool wxWindowGTK::Destroy()
2791 {
2792     wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2793
2794     m_hasVMT = false;
2795
2796     return wxWindowBase::Destroy();
2797 }
2798
2799 void wxWindowGTK::DoMoveWindow(int x, int y, int width, int height)
2800 {
2801     gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), m_widget, x, y, width, height );
2802 }
2803
2804 void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
2805 {
2806     wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
2807     wxASSERT_MSG( (m_parent != NULL), wxT("wxWindowGTK::SetSize requires parent.\n") );
2808
2809 /*
2810     printf( "DoSetSize: name %s, x,y,w,h: %d,%d,%d,%d \n", GetName().c_str(), x,y,width,height );
2811 */
2812
2813     if (m_resizing) return; /* I don't like recursions */
2814     m_resizing = true;
2815
2816     int currentX, currentY;
2817     GetPosition(&currentX, &currentY);
2818     if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2819         x = currentX;
2820     if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
2821         y = currentY;
2822     AdjustForParentClientOrigin(x, y, sizeFlags);
2823
2824     if (m_parent->m_wxwindow == NULL) /* i.e. wxNotebook */
2825     {
2826         /* don't set the size for children of wxNotebook, just take the values. */
2827         m_x = x;
2828         m_y = y;
2829         m_width = width;
2830         m_height = height;
2831     }
2832     else
2833     {
2834         GtkPizza *pizza = GTK_PIZZA(m_parent->m_wxwindow);
2835         if ((sizeFlags & wxSIZE_ALLOW_MINUS_ONE) == 0)
2836         {
2837             if (x != -1) m_x = x + pizza->xoffset;
2838             if (y != -1) m_y = y + pizza->yoffset;
2839         }
2840         else
2841         {
2842             m_x = x + pizza->xoffset;
2843             m_y = y + pizza->yoffset;
2844         }
2845
2846         // calculate the best size if we should auto size the window
2847         if ( ((sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1) ||
2848                 ((sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1) )
2849         {
2850             const wxSize sizeBest = GetBestSize();
2851             if ( (sizeFlags & wxSIZE_AUTO_WIDTH) && width == -1 )
2852                 width = sizeBest.x;
2853             if ( (sizeFlags & wxSIZE_AUTO_HEIGHT) && height == -1 )
2854                 height = sizeBest.y;
2855         }
2856
2857         if (width != -1)
2858             m_width = width;
2859         if (height != -1)
2860             m_height = height;
2861
2862         int minWidth = GetMinWidth(),
2863             minHeight = GetMinHeight(),
2864             maxWidth = GetMaxWidth(),
2865             maxHeight = GetMaxHeight();
2866
2867         if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth;
2868         if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight;
2869         if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth;
2870         if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight;
2871
2872         int left_border = 0;
2873         int right_border = 0;
2874         int top_border = 0;
2875         int bottom_border = 0;
2876
2877         /* the default button has a border around it */
2878         if (GTK_WIDGET_CAN_DEFAULT(m_widget))
2879         {
2880             left_border = 6;
2881             right_border = 6;
2882             top_border = 6;
2883             bottom_border = 5;
2884         }
2885
2886         DoMoveWindow( m_x-top_border,
2887                       m_y-left_border,
2888                       m_width+left_border+right_border,
2889                       m_height+top_border+bottom_border );
2890     }
2891
2892     if (m_hasScrolling)
2893     {
2894         /* Sometimes the client area changes size without the
2895            whole windows's size changing, but if the whole
2896            windows's size doesn't change, no wxSizeEvent will
2897            normally be sent. Here we add an extra test if
2898            the client test has been changed and this will
2899            be used then. */
2900         GetClientSize( &m_oldClientWidth, &m_oldClientHeight );
2901     }
2902
2903 /*
2904     wxPrintf( "OnSize sent from " );
2905     if (GetClassInfo() && GetClassInfo()->GetClassName())
2906         wxPrintf( GetClassInfo()->GetClassName() );
2907     wxPrintf( " %d %d %d %d\n", (int)m_x, (int)m_y, (int)m_width, (int)m_height );
2908 */
2909
2910     if (!m_nativeSizeEvent)
2911     {
2912         wxSizeEvent event( wxSize(m_width,m_height), GetId() );
2913         event.SetEventObject( this );
2914         HandleWindowEvent( event );
2915     }
2916
2917     m_resizing = false;
2918 }
2919
2920 void wxWindowGTK::OnInternalIdle()
2921 {
2922     // Update style if the window was not yet realized
2923     // and SetBackgroundStyle(wxBG_STYLE_CUSTOM) was called
2924     if (m_needsStyleChange)
2925     {
2926         SetBackgroundStyle(GetBackgroundStyle());
2927         m_needsStyleChange = false;
2928     }
2929
2930     // Update invalidated regions.
2931     GtkUpdate();
2932
2933     wxCursor cursor = m_cursor;
2934     if (g_globalCursor.Ok()) cursor = g_globalCursor;
2935
2936     if (cursor.Ok())
2937     {
2938         /* I now set the cursor anew in every OnInternalIdle call
2939            as setting the cursor in a parent window also effects the
2940            windows above so that checking for the current cursor is
2941            not possible. */
2942
2943         if (m_wxwindow)
2944         {
2945             GdkWindow *window = GTK_PIZZA(m_wxwindow)->bin_window;
2946             if (window)
2947                 gdk_window_set_cursor( window, cursor.GetCursor() );
2948
2949             if (!g_globalCursor.Ok())
2950                 cursor = *wxSTANDARD_CURSOR;
2951
2952             window = m_widget->window;
2953             if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2954                 gdk_window_set_cursor( window, cursor.GetCursor() );
2955
2956         }
2957         else if ( m_widget )
2958         {
2959             GdkWindow *window = m_widget->window;
2960             if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
2961                gdk_window_set_cursor( window, cursor.GetCursor() );
2962         }
2963     }
2964
2965     if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
2966         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2967 }
2968
2969 void wxWindowGTK::DoGetSize( int *width, int *height ) const
2970 {
2971     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2972
2973     if (width) (*width) = m_width;
2974     if (height) (*height) = m_height;
2975 }
2976
2977 void wxWindowGTK::DoSetClientSize( int width, int height )
2978 {
2979     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
2980
2981     if (!m_wxwindow)
2982     {
2983         SetSize( width, height );
2984     }
2985     else
2986     {
2987         int dw = 0;
2988         int dh = 0;
2989
2990 #ifndef __WXUNIVERSAL__
2991         if (HasFlag(wxRAISED_BORDER) || HasFlag(wxSUNKEN_BORDER) || HasFlag(wxBORDER_THEME))
2992         {
2993             /* when using GTK 1.2 we set the shadow border size to 2 */
2994             dw += 2 * 2;
2995             dh += 2 * 2;
2996         }
2997         if (HasFlag(wxSIMPLE_BORDER))
2998         {
2999             /* when using GTK 1.2 we set the simple border size to 1 */
3000             dw += 1 * 2;
3001             dh += 1 * 2;
3002         }
3003 #endif // __WXUNIVERSAL__
3004
3005         if (m_hasScrolling)
3006         {
3007             GtkScrolledWindow *scroll_window = GTK_SCROLLED_WINDOW(m_widget);
3008
3009             GtkRequisition vscroll_req;
3010             vscroll_req.width = 2;
3011             vscroll_req.height = 2;
3012             (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->vscrollbar) )->size_request )
3013                 (scroll_window->vscrollbar, &vscroll_req );
3014
3015             GtkRequisition hscroll_req;
3016             hscroll_req.width = 2;
3017             hscroll_req.height = 2;
3018             (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->hscrollbar) )->size_request )
3019                 (scroll_window->hscrollbar, &hscroll_req );
3020
3021             GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
3022
3023             if (scroll_window->vscrollbar_visible)
3024             {
3025                 dw += vscroll_req.width;
3026                 dw += scroll_class->scrollbar_spacing;
3027             }
3028
3029             if (scroll_window->hscrollbar_visible)
3030             {
3031                 dh += hscroll_req.height;
3032                 dh += scroll_class->scrollbar_spacing;
3033             }
3034         }
3035
3036        SetSize( width+dw, height+dh );
3037     }
3038 }
3039
3040 void wxWindowGTK::DoGetClientSize( int *width, int *height ) const
3041 {
3042     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3043
3044     if (!m_wxwindow)
3045     {
3046         if (width) (*width) = m_width;
3047         if (height) (*height) = m_height;
3048     }
3049     else
3050     {
3051         int dw = 0;
3052         int dh = 0;
3053
3054 #ifndef __WXUNIVERSAL__
3055         if (HasFlag(wxRAISED_BORDER) || HasFlag(wxSUNKEN_BORDER) || HasFlag(wxBORDER_THEME))
3056         {
3057             /* when using GTK 1.2 we set the shadow border size to 2 */
3058             dw += 2 * 2;
3059             dh += 2 * 2;
3060         }
3061         if (HasFlag(wxSIMPLE_BORDER))
3062         {
3063             /* when using GTK 1.2 we set the simple border size to 1 */
3064             dw += 1 * 2;
3065             dh += 1 * 2;
3066         }
3067 #endif // __WXUNIVERSAL__
3068
3069         if (m_hasScrolling)
3070         {
3071             GtkScrolledWindow *scroll_window = GTK_SCROLLED_WINDOW(m_widget);
3072
3073             GtkRequisition vscroll_req;
3074             vscroll_req.width = 2;
3075             vscroll_req.height = 2;
3076             (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->vscrollbar) )->size_request )
3077                 (scroll_window->vscrollbar, &vscroll_req );
3078
3079             GtkRequisition hscroll_req;
3080             hscroll_req.width = 2;
3081             hscroll_req.height = 2;
3082             (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(scroll_window->hscrollbar) )->size_request )
3083                 (scroll_window->hscrollbar, &hscroll_req );
3084
3085             GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT_GET_CLASS(m_widget) );
3086
3087             if (scroll_window->vscrollbar_visible)
3088             {
3089                 dw += vscroll_req.width;
3090                 dw += scroll_class->scrollbar_spacing;
3091             }
3092
3093             if (scroll_window->hscrollbar_visible)
3094             {
3095                 dh += hscroll_req.height;
3096                 dh += scroll_class->scrollbar_spacing;
3097             }
3098         }
3099
3100         if (width) (*width) = m_width - dw;
3101         if (height) (*height) = m_height - dh;
3102     }
3103
3104 /*
3105     printf( "GetClientSize, name %s ", GetName().c_str() );
3106     if (width) printf( " width = %d", (*width) );
3107     if (height) printf( " height = %d", (*height) );
3108     printf( "\n" );
3109 */
3110 }
3111
3112 void wxWindowGTK::DoGetPosition( int *x, int *y ) const
3113 {
3114     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3115
3116     int dx = 0;
3117     int dy = 0;
3118     if (m_parent && m_parent->m_wxwindow)
3119     {
3120         GtkPizza *pizza = GTK_PIZZA(m_parent->m_wxwindow);
3121         dx = pizza->xoffset;
3122         dy = pizza->yoffset;
3123     }
3124
3125     if (x) (*x) = m_x - dx;
3126     if (y) (*y) = m_y - dy;
3127 }
3128
3129 void wxWindowGTK::DoClientToScreen( int *x, int *y ) const
3130 {
3131     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3132
3133     if (!m_widget->window) return;
3134
3135     GdkWindow *source = NULL;
3136     if (m_wxwindow)
3137         source = GTK_PIZZA(m_wxwindow)->bin_window;
3138     else
3139         source = m_widget->window;
3140
3141     int org_x = 0;
3142     int org_y = 0;
3143     gdk_window_get_origin( source, &org_x, &org_y );
3144
3145     if (!m_wxwindow)
3146     {
3147         if (GTK_WIDGET_NO_WINDOW (m_widget))
3148         {
3149             org_x += m_widget->allocation.x;
3150             org_y += m_widget->allocation.y;
3151         }
3152     }
3153
3154     if (x) *x += org_x;
3155     if (y) *y += org_y;
3156 }
3157
3158 void wxWindowGTK::DoScreenToClient( int *x, int *y ) const
3159 {
3160     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3161
3162     if (!m_widget->window) return;
3163
3164     GdkWindow *source = NULL;
3165     if (m_wxwindow)
3166         source = GTK_PIZZA(m_wxwindow)->bin_window;
3167     else
3168         source = m_widget->window;
3169
3170     int org_x = 0;
3171     int org_y = 0;
3172     gdk_window_get_origin( source, &org_x, &org_y );
3173
3174     if (!m_wxwindow)
3175     {
3176         if (GTK_WIDGET_NO_WINDOW (m_widget))
3177         {
3178             org_x += m_widget->allocation.x;
3179             org_y += m_widget->allocation.y;
3180         }
3181     }
3182
3183     if (x) *x -= org_x;
3184     if (y) *y -= org_y;
3185 }
3186
3187 bool wxWindowGTK::Show( bool show )
3188 {
3189     wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3190
3191     if (!wxWindowBase::Show(show))
3192     {
3193         // nothing to do
3194         return false;
3195     }
3196
3197     if (show)
3198         gtk_widget_show( m_widget );
3199     else
3200         gtk_widget_hide( m_widget );
3201
3202     wxShowEvent eventShow(GetId(), show);
3203     eventShow.SetEventObject(this);
3204
3205     HandleWindowEvent(eventShow);
3206
3207     return true;
3208 }
3209
3210 void wxWindowGTK::DoEnable( bool enable )
3211 {
3212     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3213
3214     gtk_widget_set_sensitive( m_widget, enable );
3215     if ( m_wxwindow )
3216         gtk_widget_set_sensitive( m_wxwindow, enable );
3217 }
3218
3219 int wxWindowGTK::GetCharHeight() const
3220 {
3221     wxCHECK_MSG( (m_widget != NULL), 12, wxT("invalid window") );
3222
3223     wxFont font = GetFont();
3224     wxCHECK_MSG( font.Ok(), 12, wxT("invalid font") );
3225
3226     GdkFont *gfont = font.GetInternalFont( 1.0 );
3227
3228     return gfont->ascent + gfont->descent;
3229 }
3230
3231 int wxWindowGTK::GetCharWidth() const
3232 {
3233     wxCHECK_MSG( (m_widget != NULL), 8, wxT("invalid window") );
3234
3235     wxFont font = GetFont();
3236     wxCHECK_MSG( font.Ok(), 8, wxT("invalid font") );
3237
3238     GdkFont *gfont = font.GetInternalFont( 1.0 );
3239
3240     return gdk_string_width( gfont, "g" );
3241 }
3242
3243 void wxWindowGTK::GetTextExtent( const wxString& string,
3244                                  int *x,
3245                                  int *y,
3246                                  int *descent,
3247                                  int *externalLeading,
3248                                  const wxFont *theFont ) const
3249 {
3250     wxFont fontToUse = theFont ? *theFont : GetFont();
3251
3252     wxCHECK_RET( fontToUse.Ok(), wxT("invalid font") );
3253
3254     if (string.empty())
3255     {
3256         if (x) (*x) = 0;
3257         if (y) (*y) = 0;
3258         return;
3259     }
3260
3261     GdkFont *font = fontToUse.GetInternalFont( 1.0 );
3262     if (x) (*x) = gdk_string_width( font, wxGTK_CONV( string ) );
3263     if (y) (*y) = font->ascent + font->descent;
3264     if (descent) (*descent) = font->descent;
3265     if (externalLeading) (*externalLeading) = 0;  // ??
3266 }
3267
3268 void wxWindowGTK::SetFocus()
3269 {
3270     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3271     if ( m_hasFocus )
3272     {
3273         // don't do anything if we already have focus
3274         return;
3275     }
3276
3277     if (m_wxwindow)
3278     {
3279         if (!GTK_WIDGET_HAS_FOCUS (m_wxwindow))
3280         {
3281             gtk_widget_grab_focus (m_wxwindow);
3282         }
3283     }
3284     else if (m_widget)
3285     {
3286         if (GTK_WIDGET_CAN_FOCUS(m_widget) && !GTK_WIDGET_HAS_FOCUS (m_widget) )
3287         {
3288
3289             if (!GTK_WIDGET_REALIZED(m_widget))
3290             {
3291                 // we can't set the focus to the widget now so we remember that
3292                 // it should be focused and will do it later, during the idle
3293                 // time, as soon as we can
3294                 wxLogTrace(TRACE_FOCUS,
3295                            _T("Delaying setting focus to %s(%s)"),
3296                            GetClassInfo()->GetClassName(), GetLabel().c_str());
3297
3298                 g_delayedFocus = this;
3299             }
3300             else
3301             {
3302                 wxLogTrace(TRACE_FOCUS,
3303                            _T("Setting focus to %s(%s)"),
3304                            GetClassInfo()->GetClassName(), GetLabel().c_str());
3305
3306                 gtk_widget_grab_focus (m_widget);
3307             }
3308         }
3309         else
3310         if (GTK_IS_CONTAINER(m_widget))
3311         {
3312             gtk_container_focus( GTK_CONTAINER(m_widget), GTK_DIR_TAB_FORWARD );
3313         }
3314         else
3315         {
3316            wxLogTrace(TRACE_FOCUS,
3317                       _T("Can't set focus to %s(%s)"),
3318                       GetClassInfo()->GetClassName(), GetLabel().c_str());
3319         }
3320     }
3321 }
3322
3323 bool wxWindowGTK::AcceptsFocus() const
3324 {
3325     return m_acceptsFocus && wxWindowBase::AcceptsFocus();
3326 }
3327
3328 bool wxWindowGTK::Reparent( wxWindowBase *newParentBase )
3329 {
3330     wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3331
3332     wxWindowGTK *oldParent = m_parent,
3333              *newParent = (wxWindowGTK *)newParentBase;
3334
3335     wxASSERT( GTK_IS_WIDGET(m_widget) );
3336
3337     if ( !wxWindowBase::Reparent(newParent) )
3338         return false;
3339
3340     wxASSERT( GTK_IS_WIDGET(m_widget) );
3341
3342     /* prevent GTK from deleting the widget arbitrarily */
3343     gtk_widget_ref( m_widget );
3344
3345     if (oldParent)
3346     {
3347         gtk_container_remove( GTK_CONTAINER(m_widget->parent), m_widget );
3348     }
3349
3350     wxASSERT( GTK_IS_WIDGET(m_widget) );
3351
3352     if (newParent)
3353     {
3354         /* insert GTK representation */
3355         (*(newParent->m_insertCallback))(newParent, this);
3356     }
3357
3358     /* reverse: prevent GTK from deleting the widget arbitrarily */
3359     gtk_widget_unref( m_widget );
3360
3361     return true;
3362 }
3363
3364 void wxWindowGTK::DoAddChild(wxWindowGTK *child)
3365 {
3366     wxASSERT_MSG( (m_widget != NULL), wxT("invalid window") );
3367
3368     wxASSERT_MSG( (child != NULL), wxT("invalid child window") );
3369
3370     wxASSERT_MSG( (m_insertCallback != NULL), wxT("invalid child insertion function") );
3371
3372     /* add to list */
3373     AddChild( child );
3374
3375     /* insert GTK representation */
3376     (*m_insertCallback)(this, child);
3377 }
3378
3379 void wxWindowGTK::Raise()
3380 {
3381     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3382
3383     if (m_wxwindow && m_wxwindow->window)
3384     {
3385         gdk_window_raise( m_wxwindow->window );
3386     }
3387     else if (m_widget->window)
3388     {
3389         gdk_window_raise( m_widget->window );
3390     }
3391 }
3392
3393 void wxWindowGTK::Lower()
3394 {
3395     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3396
3397     if (m_wxwindow && m_wxwindow->window)
3398     {
3399         gdk_window_lower( m_wxwindow->window );
3400     }
3401     else if (m_widget->window)
3402     {
3403         gdk_window_lower( m_widget->window );
3404     }
3405 }
3406
3407 bool wxWindowGTK::SetCursor( const wxCursor &cursor )
3408 {
3409     wxCHECK_MSG( (m_widget != NULL), false, wxT("invalid window") );
3410
3411     if ( cursor.IsSameAs(m_cursor) )
3412        return false;
3413
3414     if (g_isIdle)
3415         wxapp_install_idle_handler();
3416
3417     return wxWindowBase::SetCursor( cursor.IsOk() ? cursor
3418                                                   : *wxSTANDARD_CURSOR );
3419 }
3420
3421 void wxWindowGTK::WarpPointer( int x, int y )
3422 {
3423     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
3424
3425     // We provide this function ourselves as it is
3426     // missing in GDK (top of this file).
3427
3428     GdkWindow *window = NULL;
3429     if (m_wxwindow)
3430         window = GTK_PIZZA(m_wxwindow)->bin_window;
3431     else
3432         window = GetConnectWidget()->window;
3433
3434     if (window)
3435         gdk_window_warp_pointer( window, x, y );
3436 }
3437
3438
3439 void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
3440 {
3441     if (!m_widget)
3442         return;
3443     if (!m_widget->window)
3444         return;
3445
3446     if (g_isIdle)
3447         wxapp_install_idle_handler();
3448
3449     wxRect myRect;
3450     if (m_wxwindow && rect)
3451     {
3452         myRect.SetSize(wxSize( m_wxwindow->allocation.width,
3453                                m_wxwindow->allocation.height));
3454         if ( myRect.Intersect(*rect).IsEmpty() )
3455         {
3456             // nothing to do, rectangle is empty
3457             return;
3458         }
3459
3460         rect = &myRect;
3461     }
3462
3463     // schedule the area for later updating in GtkUpdate()
3464     if (eraseBackground && m_wxwindow && m_wxwindow->window)
3465     {
3466         if (rect)
3467         {
3468             m_clearRegion.Union( rect->x, rect->y, rect->width, rect->height );
3469         }
3470         else
3471         {
3472             m_clearRegion.Clear();
3473             m_clearRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
3474         }
3475     }
3476
3477     if (rect)
3478     {
3479         if (m_wxwindow)
3480         {
3481             m_updateRegion.Union( rect->x, rect->y, rect->width, rect->height );
3482         }
3483         else
3484         {
3485             GdkRectangle gdk_rect;
3486             gdk_rect.x = rect->x;
3487             gdk_rect.y = rect->y;
3488             gdk_rect.width = rect->width;
3489             gdk_rect.height = rect->height;
3490             gtk_widget_draw( m_widget, &gdk_rect );
3491         }
3492     }
3493     else
3494     {
3495         if (m_wxwindow)
3496         {
3497             m_updateRegion.Clear();
3498             m_updateRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
3499         }
3500         else
3501         {
3502             gtk_widget_draw( m_widget, NULL );
3503         }
3504     }
3505 }
3506
3507 void wxWindowGTK::Update()
3508 {
3509     GtkUpdate();
3510
3511     // when we call Update() we really want to update the window immediately on
3512     // screen, even if it means flushing the entire queue and hence slowing down
3513     // everything -- but it should still be done, it's just that Update() should
3514     // be called very rarely
3515     gdk_flush();
3516 }
3517
3518 void wxWindowGTK::GtkUpdate()
3519 {
3520     if (!m_updateRegion.IsEmpty())
3521         GtkSendPaintEvents();
3522
3523     // for consistency with other platforms (and also because it's convenient
3524     // to be able to update an entire TLW by calling Update() only once), we
3525     // should also update all our children here
3526     for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
3527           node;
3528           node = node->GetNext() )
3529     {
3530         node->GetData()->GtkUpdate();
3531     }
3532 }
3533
3534 void wxWindowGTK::GtkSendPaintEvents()
3535 {
3536     if (!m_wxwindow)
3537     {
3538         m_clearRegion.Clear();
3539         m_updateRegion.Clear();
3540         return;
3541     }
3542
3543     // Clip to paint region in wxClientDC
3544     m_clipPaintRegion = true;
3545
3546     // widget to draw on
3547     GtkPizza *pizza = GTK_PIZZA (m_wxwindow);
3548
3549     if (GetThemeEnabled() && (GetBackgroundStyle() == wxBG_STYLE_SYSTEM))
3550     {
3551         // find ancestor from which to steal background
3552         wxWindow *parent = wxGetTopLevelParent((wxWindow *)this);
3553         if (!parent)
3554             parent = (wxWindow*)this;
3555
3556         if (GTK_WIDGET_MAPPED(parent->m_widget))
3557         {
3558             wxRegionIterator upd( m_updateRegion );
3559             while (upd)
3560             {
3561                 GdkRectangle rect;
3562                 rect.x = upd.GetX();
3563                 rect.y = upd.GetY();
3564                 rect.width = upd.GetWidth();
3565                 rect.height = upd.GetHeight();
3566
3567                 gtk_paint_flat_box( parent->m_widget->style,
3568                             pizza->bin_window,
3569                             (GtkStateType)GTK_WIDGET_STATE(m_wxwindow),
3570                             GTK_SHADOW_NONE,
3571                             &rect,
3572                             parent->m_widget,
3573                             (char *)"base",
3574                             0, 0, -1, -1 );
3575
3576                 ++upd;
3577             }
3578         }
3579     }
3580     else // Always send an erase event under GTK 1.2
3581     {
3582         wxWindowDC dc( (wxWindow*)this );
3583         dc.SetDeviceClippingRegion( m_clearRegion.IsEmpty() ? m_updateRegion
3584                                                             : m_clearRegion );
3585
3586         wxEraseEvent erase_event( GetId(), &dc );
3587         erase_event.SetEventObject( this );
3588
3589         if (!HandleWindowEvent(erase_event) && GetBackgroundStyle() != wxBG_STYLE_CUSTOM)
3590         {
3591             if (!g_eraseGC)
3592             {
3593                 g_eraseGC = gdk_gc_new( pizza->bin_window );
3594                 gdk_gc_set_fill( g_eraseGC, GDK_SOLID );
3595             }
3596             gdk_gc_set_foreground( g_eraseGC, GetBackgroundColour().GetColor() );
3597
3598             wxRegionIterator upd( m_clearRegion );
3599             while (upd)
3600             {
3601                 gdk_draw_rectangle( pizza->bin_window, g_eraseGC, 1,
3602                                     upd.GetX(), upd.GetY(), upd.GetWidth(), upd.GetHeight() );
3603                 upd ++;
3604             }
3605         }
3606         m_clearRegion.Clear();
3607     }
3608
3609     wxNcPaintEvent nc_paint_event( GetId() );
3610     nc_paint_event.SetEventObject( this );
3611     HandleWindowEvent( nc_paint_event );
3612
3613     wxPaintEvent paint_event( GetId() );
3614     paint_event.SetEventObject( this );
3615     HandleWindowEvent( paint_event );
3616
3617     m_clipPaintRegion = false;
3618
3619 #if !defined(__WXUNIVERSAL__)
3620     // The following code will result in all window-less widgets
3621     // being redrawn because the wxWidgets class is allowed to
3622     // paint over the window-less widgets.
3623
3624     GList *children = pizza->children;
3625     while (children)
3626     {
3627         GtkPizzaChild *child = (GtkPizzaChild*) children->data;
3628         children = children->next;
3629
3630         if (GTK_WIDGET_NO_WINDOW (child->widget) &&
3631             GTK_WIDGET_DRAWABLE (child->widget))
3632         {
3633             // Get intersection of widget area and update region
3634             wxRegion region( m_updateRegion );
3635
3636             GdkEventExpose gdk_event;
3637             gdk_event.type = GDK_EXPOSE;
3638             gdk_event.window = pizza->bin_window;
3639             gdk_event.count = 0;
3640             gdk_event.send_event = TRUE;
3641
3642             wxRegionIterator upd( m_updateRegion );
3643             while (upd)
3644             {
3645                 GdkRectangle rect;
3646                 rect.x = upd.GetX();
3647                 rect.y = upd.GetY();
3648                 rect.width = upd.GetWidth();
3649                 rect.height = upd.GetHeight();
3650
3651                 if (gtk_widget_intersect (child->widget, &rect, &gdk_event.area))
3652                 {
3653                     gtk_widget_event (child->widget, (GdkEvent*) &gdk_event);
3654                 }
3655
3656                 upd ++;
3657             }
3658         }
3659     }
3660 #endif // native GTK 1
3661
3662     m_updateRegion.Clear();
3663 }
3664
3665 void wxWindowGTK::ClearBackground()
3666 {
3667     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3668
3669     if (m_wxwindow && m_wxwindow->window)
3670     {
3671         m_clearRegion.Clear();
3672         wxSize size( GetClientSize() );
3673         m_clearRegion.Union( 0,0,size.x,size.y );
3674
3675         // Better do this in idle?
3676         GtkUpdate();
3677     }
3678 }
3679
3680 #if wxUSE_TOOLTIPS
3681 void wxWindowGTK::DoSetToolTip( wxToolTip *tip )
3682 {
3683     wxWindowBase::DoSetToolTip(tip);
3684
3685     if (m_tooltip)
3686         m_tooltip->Apply( (wxWindow *)this );
3687 }
3688
3689 void wxWindowGTK::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
3690 {
3691     wxString tmp( tip );
3692     gtk_tooltips_set_tip( tips, GetConnectWidget(), wxGTK_CONV(tmp), NULL );
3693 }
3694 #endif // wxUSE_TOOLTIPS
3695
3696 bool wxWindowGTK::SetBackgroundColour( const wxColour &colour )
3697 {
3698     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3699
3700     if (!wxWindowBase::SetBackgroundColour(colour))
3701         return false;
3702
3703     if (colour.Ok())
3704     {
3705         // We need the pixel value e.g. for background clearing.
3706         m_backgroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3707     }
3708
3709     // apply style change (forceStyle=true so that new style is applied
3710     // even if the bg colour changed from valid to wxNullColour)
3711     if (GetBackgroundStyle() != wxBG_STYLE_CUSTOM)
3712         ApplyWidgetStyle(true);
3713
3714     return true;
3715 }
3716
3717 bool wxWindowGTK::SetForegroundColour( const wxColour &colour )
3718 {
3719     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3720
3721     if (!wxWindowBase::SetForegroundColour(colour))
3722     {
3723         return false;
3724     }
3725
3726     if (colour.Ok())
3727     {
3728         // We need the pixel value e.g. for background clearing.
3729         m_foregroundColour.CalcPixel(gtk_widget_get_colormap(m_widget));
3730     }
3731
3732     // apply style change (forceStyle=true so that new style is applied
3733     // even if the bg colour changed from valid to wxNullColour):
3734     ApplyWidgetStyle(true);
3735
3736     return true;
3737 }
3738
3739 GtkRcStyle *wxWindowGTK::CreateWidgetStyle(bool forceStyle)
3740 {
3741     // do we need to apply any changes at all?
3742     if ( !forceStyle &&
3743          !m_font.Ok() &&
3744          !m_foregroundColour.Ok() && !m_backgroundColour.Ok() )
3745     {
3746         return NULL;
3747     }
3748
3749     GtkRcStyle *style = gtk_rc_style_new();
3750
3751     if ( m_font.Ok() )
3752     {
3753         wxString xfontname = m_font.GetNativeFontInfo()->GetXFontName();
3754         style->fontset_name = g_strdup(xfontname.c_str());
3755     }
3756
3757     if ( m_foregroundColour.Ok() )
3758     {
3759         GdkColor *fg = m_foregroundColour.GetColor();
3760
3761         style->fg[GTK_STATE_NORMAL] = *fg;
3762         style->color_flags[GTK_STATE_NORMAL] = GTK_RC_FG;
3763
3764         style->fg[GTK_STATE_PRELIGHT] = *fg;
3765         style->color_flags[GTK_STATE_PRELIGHT] = GTK_RC_FG;
3766
3767         style->fg[GTK_STATE_ACTIVE] = *fg;
3768         style->color_flags[GTK_STATE_ACTIVE] = GTK_RC_FG;
3769     }
3770
3771     if ( m_backgroundColour.Ok() )
3772     {
3773         GdkColor *bg = m_backgroundColour.GetColor();
3774
3775         style->bg[GTK_STATE_NORMAL] = *bg;
3776         style->base[GTK_STATE_NORMAL] = *bg;
3777         style->color_flags[GTK_STATE_NORMAL] = (GtkRcFlags)
3778             (style->color_flags[GTK_STATE_NORMAL] | GTK_RC_BG | GTK_RC_BASE);
3779
3780         style->bg[GTK_STATE_PRELIGHT] = *bg;
3781         style->base[GTK_STATE_PRELIGHT] = *bg;
3782         style->color_flags[GTK_STATE_PRELIGHT] = (GtkRcFlags)
3783             (style->color_flags[GTK_STATE_PRELIGHT] | GTK_RC_BG | GTK_RC_BASE);
3784
3785         style->bg[GTK_STATE_ACTIVE] = *bg;
3786         style->base[GTK_STATE_ACTIVE] = *bg;
3787         style->color_flags[GTK_STATE_ACTIVE] = (GtkRcFlags)
3788             (style->color_flags[GTK_STATE_ACTIVE] | GTK_RC_BG | GTK_RC_BASE);
3789
3790         style->bg[GTK_STATE_INSENSITIVE] = *bg;
3791         style->base[GTK_STATE_INSENSITIVE] = *bg;
3792         style->color_flags[GTK_STATE_INSENSITIVE] = (GtkRcFlags)
3793             (style->color_flags[GTK_STATE_INSENSITIVE] | GTK_RC_BG | GTK_RC_BASE);
3794     }
3795
3796     return style;
3797 }
3798
3799 void wxWindowGTK::ApplyWidgetStyle(bool forceStyle)
3800 {
3801     GtkRcStyle *style = CreateWidgetStyle(forceStyle);
3802     if ( style )
3803     {
3804         DoApplyWidgetStyle(style);
3805         gtk_rc_style_unref(style);
3806     }
3807
3808     // Style change may affect GTK+'s size calculation:
3809     InvalidateBestSize();
3810 }
3811
3812 void wxWindowGTK::DoApplyWidgetStyle(GtkRcStyle *style)
3813 {
3814     if (m_wxwindow)
3815         gtk_widget_modify_style(m_wxwindow, style);
3816     else
3817         gtk_widget_modify_style(m_widget, style);
3818 }
3819
3820 bool wxWindowGTK::SetBackgroundStyle(wxBackgroundStyle style)
3821 {
3822     wxWindowBase::SetBackgroundStyle(style);
3823
3824     if (style == wxBG_STYLE_CUSTOM)
3825     {
3826         GdkWindow *window = NULL;
3827         if (m_wxwindow)
3828             window = GTK_PIZZA(m_wxwindow)->bin_window;
3829         else
3830             window = GetConnectWidget()->window;
3831
3832         if (window)
3833         {
3834             // Make sure GDK/X11 doesn't refresh the window
3835             // automatically.
3836             gdk_window_set_back_pixmap( window, None, False );
3837 #ifdef __X__
3838             Display* display = GDK_WINDOW_DISPLAY(window);
3839             XFlush(display);
3840 #endif
3841             m_needsStyleChange = false;
3842         }
3843         else
3844             // Do in OnIdle, because the window is not yet available
3845             m_needsStyleChange = true;
3846
3847         // Don't apply widget style, or we get a grey background
3848     }
3849     else
3850     {
3851         // apply style change (forceStyle=true so that new style is applied
3852         // even if the bg colour changed from valid to wxNullColour):
3853         ApplyWidgetStyle(true);
3854     }
3855     return true;
3856 }
3857
3858 #if wxUSE_DRAG_AND_DROP
3859
3860 void wxWindowGTK::SetDropTarget( wxDropTarget *dropTarget )
3861 {
3862     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3863
3864     GtkWidget *dnd_widget = GetConnectWidget();
3865
3866     if (m_dropTarget) m_dropTarget->UnregisterWidget( dnd_widget );
3867
3868     if (m_dropTarget) delete m_dropTarget;
3869     m_dropTarget = dropTarget;
3870
3871     if (m_dropTarget) m_dropTarget->RegisterWidget( dnd_widget );
3872 }
3873
3874 #endif // wxUSE_DRAG_AND_DROP
3875
3876 GtkWidget* wxWindowGTK::GetConnectWidget()
3877 {
3878     GtkWidget *connect_widget = m_widget;
3879     if (m_wxwindow) connect_widget = m_wxwindow;
3880
3881     return connect_widget;
3882 }
3883
3884 bool wxWindowGTK::IsOwnGtkWindow( GdkWindow *window )
3885 {
3886     if (m_wxwindow)
3887         return (window == GTK_PIZZA(m_wxwindow)->bin_window);
3888
3889     return (window == m_widget->window);
3890 }
3891
3892 bool wxWindowGTK::SetFont( const wxFont &font )
3893 {
3894     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
3895
3896     if (!wxWindowBase::SetFont(font))
3897         return false;
3898
3899     // apply style change (forceStyle=true so that new style is applied
3900     // even if the font changed from valid to wxNullFont):
3901     ApplyWidgetStyle(true);
3902
3903     return true;
3904 }
3905
3906 void wxWindowGTK::DoCaptureMouse()
3907 {
3908     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3909
3910     GdkWindow *window = NULL;
3911     if (m_wxwindow)
3912         window = GTK_PIZZA(m_wxwindow)->bin_window;
3913     else
3914         window = GetConnectWidget()->window;
3915
3916     wxCHECK_RET( window, _T("CaptureMouse() failed") );
3917
3918     const wxCursor* cursor = &m_cursor;
3919     if (!cursor->Ok())
3920         cursor = wxSTANDARD_CURSOR;
3921
3922     gdk_pointer_grab( window, FALSE,
3923                       (GdkEventMask)
3924                          (GDK_BUTTON_PRESS_MASK |
3925                           GDK_BUTTON_RELEASE_MASK |
3926                           GDK_POINTER_MOTION_HINT_MASK |
3927                           GDK_POINTER_MOTION_MASK),
3928                       NULL,
3929                       cursor->GetCursor(),
3930                       (guint32)GDK_CURRENT_TIME );
3931     g_captureWindow = this;
3932     g_captureWindowHasMouse = true;
3933 }
3934
3935 void wxWindowGTK::DoReleaseMouse()
3936 {
3937     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3938
3939     wxCHECK_RET( g_captureWindow, wxT("can't release mouse - not captured") );
3940
3941     g_captureWindow = NULL;
3942
3943     GdkWindow *window = NULL;
3944     if (m_wxwindow)
3945         window = GTK_PIZZA(m_wxwindow)->bin_window;
3946     else
3947         window = GetConnectWidget()->window;
3948
3949     if (!window)
3950         return;
3951
3952     gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
3953 }
3954
3955 /* static */
3956 wxWindow *wxWindowBase::GetCapture()
3957 {
3958     return (wxWindow *)g_captureWindow;
3959 }
3960
3961 bool wxWindowGTK::IsRetained() const
3962 {
3963     return false;
3964 }
3965
3966 void wxWindowGTK::SetScrollbar( int orient, int pos, int thumbVisible,
3967       int range, bool refresh )
3968 {
3969     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
3970
3971     wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
3972
3973     m_hasScrolling = true;
3974
3975     if (orient == wxHORIZONTAL)
3976     {
3977         float fpos = (float)pos;
3978         float frange = (float)range;
3979         float fthumb = (float)thumbVisible;
3980         if (fpos > frange-fthumb) fpos = frange-fthumb;
3981         if (fpos < 0.0) fpos = 0.0;
3982
3983         if ((fabs(frange-m_hAdjust->upper) < 0.2) &&
3984             (fabs(fthumb-m_hAdjust->page_size) < 0.2))
3985         {
3986             SetScrollPos( orient, pos, refresh );
3987             return;
3988         }
3989
3990         m_oldHorizontalPos = fpos;
3991
3992         m_hAdjust->lower = 0.0;
3993         m_hAdjust->upper = frange;
3994         m_hAdjust->value = fpos;
3995         m_hAdjust->step_increment = 1.0;
3996         m_hAdjust->page_increment = (float)(wxMax(fthumb,0));
3997         m_hAdjust->page_size = fthumb;
3998     }
3999     else
4000     {
4001         float fpos = (float)pos;
4002         float frange = (float)range;
4003         float fthumb = (float)thumbVisible;
4004         if (fpos > frange-fthumb) fpos = frange-fthumb;
4005         if (fpos < 0.0) fpos = 0.0;
4006
4007         if ((fabs(frange-m_vAdjust->upper) < 0.2) &&
4008             (fabs(fthumb-m_vAdjust->page_size) < 0.2))
4009         {
4010             SetScrollPos( orient, pos, refresh );
4011             return;
4012         }
4013
4014         m_oldVerticalPos = fpos;
4015
4016         m_vAdjust->lower = 0.0;
4017         m_vAdjust->upper = frange;
4018         m_vAdjust->value = fpos;
4019         m_vAdjust->step_increment = 1.0;
4020         m_vAdjust->page_increment = (float)(wxMax(fthumb,0));
4021         m_vAdjust->page_size = fthumb;
4022     }
4023
4024     if (orient == wxHORIZONTAL)
4025         gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
4026     else
4027         gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" );
4028 }
4029
4030 void wxWindowGTK::GtkUpdateScrollbar(int orient)
4031 {
4032     GtkAdjustment *adj = orient == wxHORIZONTAL ? m_hAdjust : m_vAdjust;
4033     GtkSignalFunc fn = orient == wxHORIZONTAL
4034                         ? (GtkSignalFunc)gtk_window_hscroll_callback
4035                         : (GtkSignalFunc)gtk_window_vscroll_callback;
4036
4037     gtk_signal_disconnect_by_func(GTK_OBJECT(adj), fn, (gpointer)this);
4038     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
4039     gtk_signal_connect(GTK_OBJECT(adj), "value_changed", fn, (gpointer)this);
4040 }
4041
4042 void wxWindowGTK::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) )
4043 {
4044     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4045     wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4046
4047     GtkAdjustment *adj = orient == wxHORIZONTAL ? m_hAdjust : m_vAdjust;
4048
4049     float fpos = (float)pos;
4050     if (fpos > adj->upper - adj->page_size)
4051         fpos = adj->upper - adj->page_size;
4052     if (fpos < 0.0)
4053         fpos = 0.0;
4054     *(orient == wxHORIZONTAL ? &m_oldHorizontalPos : &m_oldVerticalPos) = fpos;
4055
4056     if (fabs(fpos-adj->value) < 0.2)
4057         return;
4058     adj->value = fpos;
4059
4060     if ( m_wxwindow->window )
4061     {
4062     }
4063 }
4064
4065 int wxWindowGTK::GetScrollThumb( int orient ) const
4066 {
4067     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
4068
4069     wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
4070
4071     if (orient == wxHORIZONTAL)
4072         return (int)(m_hAdjust->page_size+0.5);
4073     else
4074         return (int)(m_vAdjust->page_size+0.5);
4075 }
4076
4077 int wxWindowGTK::GetScrollPos( int orient ) const
4078 {
4079     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
4080
4081     wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
4082
4083     if (orient == wxHORIZONTAL)
4084         return (int)(m_hAdjust->value+0.5);
4085     else
4086         return (int)(m_vAdjust->value+0.5);
4087 }
4088
4089 int wxWindowGTK::GetScrollRange( int orient ) const
4090 {
4091     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
4092
4093     wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
4094
4095     if (orient == wxHORIZONTAL)
4096         return (int)(m_hAdjust->upper+0.5);
4097     else
4098         return (int)(m_vAdjust->upper+0.5);
4099 }
4100
4101 void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
4102 {
4103     wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
4104
4105     wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
4106
4107     // No scrolling requested.
4108     if ((dx == 0) && (dy == 0)) return;
4109
4110     if (!m_updateRegion.IsEmpty())
4111     {
4112         m_updateRegion.Offset( dx, dy );
4113
4114         int cw = 0;
4115         int ch = 0;
4116         GetClientSize( &cw, &ch );
4117         m_updateRegion.Intersect( 0, 0, cw, ch );
4118     }
4119
4120     if (!m_clearRegion.IsEmpty())
4121     {
4122         m_clearRegion.Offset( dx, dy );
4123
4124         int cw = 0;
4125         int ch = 0;
4126         GetClientSize( &cw, &ch );
4127         m_clearRegion.Intersect( 0, 0, cw, ch );
4128     }
4129
4130     m_clipPaintRegion = true;
4131
4132     gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), -dx, -dy );
4133
4134     m_clipPaintRegion = false;
4135 }
4136
4137 void wxWindowGTK::SetWindowStyleFlag( long style )
4138 {
4139     // Updates the internal variable. NB: Now m_windowStyle bits carry the _new_ style values already
4140     wxWindowBase::SetWindowStyleFlag(style);
4141 }
4142
4143 // Find the wxWindow at the current mouse position, also returning the mouse
4144 // position.
4145 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
4146 {
4147     pt = wxGetMousePosition();
4148     wxWindow* found = wxFindWindowAtPoint(pt);
4149     return found;
4150 }
4151
4152 // Get the current mouse position.
4153 wxPoint wxGetMousePosition()
4154 {
4155   /* This crashes when used within wxHelpContext,
4156      so we have to use the X-specific implementation below.
4157     gint x, y;
4158     GdkModifierType *mask;
4159     (void) gdk_window_get_pointer(NULL, &x, &y, mask);
4160
4161     return wxPoint(x, y);
4162   */
4163
4164     int x, y;
4165     GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
4166
4167     Display *display = windowAtPtr ? GDK_WINDOW_XDISPLAY(windowAtPtr) : GDK_DISPLAY();
4168     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
4169     Window rootReturn, childReturn;
4170     int rootX, rootY, winX, winY;
4171     unsigned int maskReturn;
4172
4173     XQueryPointer (display,
4174            rootWindow,
4175            &rootReturn,
4176                    &childReturn,
4177                    &rootX, &rootY, &winX, &winY, &maskReturn);
4178     return wxPoint(rootX, rootY);
4179
4180 }
4181
4182 // Needed for implementing e.g. combobox on wxGTK within a modal dialog.
4183 void wxAddGrab(wxWindow* window)
4184 {
4185     gtk_grab_add( (GtkWidget*) window->GetHandle() );
4186 }
4187
4188 void wxRemoveGrab(wxWindow* window)
4189 {
4190     gtk_grab_remove( (GtkWidget*) window->GetHandle() );
4191 }
4192
4193 // ----------------------------------------------------------------------------
4194 // wxWinModule
4195 // ----------------------------------------------------------------------------
4196
4197 class wxWinModule : public wxModule
4198 {
4199 public:
4200     bool OnInit();
4201     void OnExit();
4202
4203 private:
4204     DECLARE_DYNAMIC_CLASS(wxWinModule)
4205 };
4206
4207 IMPLEMENT_DYNAMIC_CLASS(wxWinModule, wxModule)
4208
4209 bool wxWinModule::OnInit()
4210 {
4211     // g_eraseGC = gdk_gc_new( GDK_ROOT_PARENT() );
4212     // gdk_gc_set_fill( g_eraseGC, GDK_SOLID );
4213
4214     return true;
4215 }
4216
4217 void wxWinModule::OnExit()
4218 {
4219     if (g_eraseGC)
4220         gdk_gc_unref( g_eraseGC );
4221 }
4222
4223 GdkWindow* wxWindowGTK::GTKGetDrawingWindow() const
4224 {
4225     GdkWindow* window = NULL;
4226     if (m_wxwindow)
4227         window = GTK_PIZZA(m_wxwindow)->bin_window;
4228     return window;
4229 }