src/motif/toplevel.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        motif/toplevel.cpp
   3 // Purpose:     wxTopLevelWindow Motif implementation
   4 // Author:      Mattia Barbon
   5 // Modified by:
   6 // Created:     12/10/2002
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Mattia Barbon
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(__APPLE__)
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 #include "wx/toplevel.h"
  25 #include "wx/app.h"
  26
  27 #ifdef __VMS__
  28     #pragma message disable nosimpint
  29 #endif
  30
  31 #include <Xm/Xm.h>
  32 #include <X11/Shell.h>
  33 #include <X11/Core.h>
  34 #if XmVersion >= 1002
  35     #include <Xm/XmAll.h>
  36 #else
  37     #include <Xm/Frame.h>
  38 #endif
  39
  40 #ifdef __VMS__
  41     #pragma message enable nosimpint
  42 #endif
  43
  44 #include "wx/motif/private.h"
  45
  46 wxList wxModelessWindows;  // Frames and modeless dialogs
  47
  48 // ---------------------------------------------------------------------------
  49 // Callbacks
  50 // ---------------------------------------------------------------------------
  51
  52 static void wxCloseTLWCallback( Widget widget, XtPointer client_data,
  53                                 XmAnyCallbackStruct *cbs );
  54 static void wxTLWEventHandler( Widget wid,
  55                                XtPointer client_data,
  56                                XEvent* event,
  57                                Boolean *continueToDispatch );
  58
  59 // ===========================================================================
  60 // wxTopLevelWindowMotif implementation
  61 // ===========================================================================
  62
  63 wxTopLevelWindowMotif::~wxTopLevelWindowMotif()
  64 {
  65     wxTopLevelWindows.DeleteObject(this);
  66
  67     if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )
  68         wxModelessWindows.DeleteObject(this);
  69
  70     m_icons.m_icons.Empty();
  71
  72     DestroyChildren();
  73
  74     // MessageDialog and FileDialog do not have a client widget
  75     if( GetClientWidget() )
  76     {
  77         XtRemoveEventHandler( (Widget)GetClientWidget(),
  78                               ButtonPressMask | ButtonReleaseMask |
  79                               PointerMotionMask | KeyPressMask,
  80                               FALSE,
  81                               wxTLWEventHandler,
  82                               (XtPointer)this );
  83     }
  84
  85     DoDestroy();
  86
  87     SetMainWidget( (WXWidget)0 );
  88
  89     // If this is the last top-level window, exit.
  90     if (wxTheApp && (wxTopLevelWindows.GetCount() == 0))
  91     {
  92         wxTheApp->SetTopWindow(NULL);
  93
  94         if (wxTheApp->GetExitOnFrameDelete())
  95         {
  96             wxTheApp->ExitMainLoop();
  97         }
  98     }
  99 }
 100
 101 void wxTopLevelWindowMotif::Init()
 102 {
 103     m_isShown = FALSE;
 104 }
 105
 106 bool wxTopLevelWindowMotif::Create( wxWindow *parent, wxWindowID id,
 107                                     const wxString& title,
 108                                     const wxPoint& pos,
 109                                     const wxSize& size,
 110                                     long style,
 111                                     const wxString& name )
 112 {
 113     SetName(name);
 114     m_windowStyle = style;
 115
 116     if ( parent )
 117         parent->AddChild(this);
 118
 119     wxTopLevelWindows.Append(this);
 120
 121     m_windowId = ( id > -1 ) ? id : NewControlId();
 122
 123     bool retval = DoCreate( parent, id, title, pos, size, style, name );
 124
 125     if( !retval ) return FALSE;
 126
 127     // Intercept CLOSE messages from the window manager
 128     Widget shell = (Widget)GetShellWidget();
 129     Atom WM_DELETE_WINDOW = XmInternAtom( XtDisplay( shell ),
 130                                           "WM_DELETE_WINDOW", False );
 131
 132     // Remove and add WM_DELETE_WINDOW so ours is only handler
 133     // This only appears to be necessary for wxDialog, but does not hurt
 134     // for wxFrame
 135     XmRemoveWMProtocols( shell, &WM_DELETE_WINDOW, 1 );
 136     XmAddWMProtocols( shell, &WM_DELETE_WINDOW, 1 );
 137     XmActivateWMProtocol( shell, WM_DELETE_WINDOW );
 138
 139     // Modified Steve Hammes for Motif 2.0
 140 #if (XmREVISION > 1 || XmVERSION > 1)
 141     XmAddWMProtocolCallback( shell, WM_DELETE_WINDOW,
 142                              (XtCallbackProc)wxCloseTLWCallback,
 143                              (XtPointer)this );
 144 #elif XmREVISION == 1
 145     XmAddWMProtocolCallback( shell, WM_DELETE_WINDOW,
 146                              (XtCallbackProc)wxCloseTLWCallback,
 147                              (caddr_t)this );
 148 #else
 149     XmAddWMProtocolCallback( shell, WM_DELETE_WINDOW,
 150                              (void (*)())wxCloseTLWCallback, (caddr_t)this );
 151 #endif
 152
 153     // This patch come from Torsten Liermann lier@lier1.muc.de
 154     if( XmIsMotifWMRunning( shell ) )
 155     {
 156         int decor = 0 ;
 157         if( m_windowStyle & wxRESIZE_BORDER )
 158             decor |= MWM_DECOR_RESIZEH;
 159         if( m_windowStyle & wxSYSTEM_MENU )
 160             decor |= MWM_DECOR_MENU;
 161         if( ( m_windowStyle & wxCAPTION ) ||
 162             ( m_windowStyle & wxTINY_CAPTION_HORIZ ) ||
 163             ( m_windowStyle & wxTINY_CAPTION_VERT ) )
 164             decor |= MWM_DECOR_TITLE;
 165         if( m_windowStyle & wxTHICK_FRAME )
 166             decor |= MWM_DECOR_BORDER;
 167         if( m_windowStyle & wxMINIMIZE_BOX )
 168             decor |= MWM_DECOR_MINIMIZE;
 169         if( m_windowStyle & wxMAXIMIZE_BOX )
 170             decor |= MWM_DECOR_MAXIMIZE;
 171
 172         XtVaSetValues( shell,
 173                        XmNmwmDecorations, decor,
 174                        NULL );
 175     }
 176     else
 177     {
 178         // This allows non-Motif window managers to support at least the
 179         // no-decorations case.
 180         if( ( m_windowStyle & wxCAPTION ) != wxCAPTION )
 181             XtVaSetValues( shell,
 182                            XmNoverrideRedirect, TRUE,
 183                            NULL );
 184     }
 185
 186     XtAddEventHandler( (Widget)GetClientWidget(),
 187                        ButtonPressMask | ButtonReleaseMask |
 188                        PointerMotionMask | KeyPressMask,
 189                        FALSE,
 190                        wxTLWEventHandler,
 191                        (XtPointer)this );
 192
 193     return retval;
 194 }
 195
 196 void wxTopLevelWindowMotif::Raise()
 197 {
 198     Widget top = (Widget) GetTopWidget();
 199     Window parent_window = XtWindow( top ),
 200         next_parent   = XtWindow( top ),
 201         root          = RootWindowOfScreen( XtScreen( top ) );
 202     // search for the parent that is child of ROOT, because the WM may
 203     // reparent twice and notify only the next parent (like FVWM)
 204     while( next_parent != root )
 205     {
 206         Window *theChildren;
 207         unsigned int n;
 208
 209         parent_window = next_parent;
 210         XQueryTree( XtDisplay( top ), parent_window, &root,
 211             &next_parent, &theChildren, &n );
 212         XFree( theChildren ); // not needed
 213     }
 214     XRaiseWindow( XtDisplay( top ), parent_window );
 215 }
 216
 217 void wxTopLevelWindowMotif::Lower()
 218 {
 219     Widget top = (Widget) GetTopWidget();
 220     Window parent_window = XtWindow( top ),
 221         next_parent   = XtWindow( top ),
 222         root          = RootWindowOfScreen( XtScreen( top ) );
 223     // search for the parent that is child of ROOT, because the WM may
 224     // reparent twice and notify only the next parent (like FVWM)
 225     while( next_parent != root )
 226     {
 227         Window *theChildren;
 228         unsigned int n;
 229
 230         parent_window = next_parent;
 231         XQueryTree( XtDisplay( top ), parent_window, &root,
 232             &next_parent, &theChildren, &n );
 233         XFree( theChildren ); // not needed
 234     }
 235     XLowerWindow( XtDisplay( top ), parent_window );
 236 }
 237
 238 static inline Widget GetShell( const wxTopLevelWindowMotif* tlw )
 239 {
 240     Widget main = (Widget) tlw->GetMainWidget();
 241     if( !main ) return (Widget) NULL;
 242
 243     return XtParent( main );
 244 }
 245
 246 WXWidget wxTopLevelWindowMotif::GetShellWidget() const
 247 {
 248     return (WXWidget) GetShell( this );
 249 }
 250
 251 bool wxTopLevelWindowMotif::ShowFullScreen( bool show,
 252                                             long style )
 253 {
 254     // TODO, see wxGTK
 255     return FALSE;
 256 }
 257
 258 bool wxTopLevelWindowMotif::IsFullScreen() const
 259 {
 260     // TODO, see wxGTK
 261     return FALSE;
 262 }
 263
 264 void wxTopLevelWindowMotif::Restore()
 265 {
 266     Widget shell = GetShell( this );
 267
 268     if( shell )
 269         XtVaSetValues( shell,
 270                        XmNiconic, FALSE,
 271                        NULL );
 272 }
 273
 274 void wxTopLevelWindowMotif::Iconize( bool iconize )
 275 {
 276     Widget shell = GetShell( this );
 277     if( !shell ) return;
 278
 279     if( !iconize )
 280         Show( TRUE );
 281
 282     XtVaSetValues( shell,
 283                    XmNiconic, (Boolean)iconize,
 284                    NULL );
 285 }
 286
 287 bool wxTopLevelWindowMotif::IsIconized() const
 288 {
 289     Widget shell = GetShell( this );
 290
 291     if( !shell )
 292         return FALSE;
 293
 294     Boolean iconic;
 295     XtVaGetValues( shell,
 296                    XmNiconic, &iconic,
 297                    NULL );
 298
 299     return iconic;
 300 }
 301
 302 void wxTopLevelWindowMotif::Maximize( bool maximize )
 303 {
 304     Show( TRUE );
 305
 306     if( maximize )
 307         Restore();
 308 }
 309
 310 bool wxTopLevelWindowMotif::IsMaximized() const
 311 {
 312     return FALSE;
 313 }
 314
 315 // ---------------------------------------------------------------------------
 316 // Callback definition
 317 // ---------------------------------------------------------------------------
 318
 319 // Handle a close event from the window manager
 320 static void wxCloseTLWCallback( Widget WXUNUSED(widget), XtPointer client_data,
 321                                 XmAnyCallbackStruct *WXUNUSED(cbs) )
 322 {
 323     wxTopLevelWindowMotif* tlw = (wxTopLevelWindowMotif*)client_data;
 324     wxCloseEvent closeEvent( wxEVT_CLOSE_WINDOW, tlw->GetId() );
 325     closeEvent.SetEventObject( tlw );
 326
 327     // May delete the dialog (with delayed deletion)
 328     tlw->GetEventHandler()->ProcessEvent(closeEvent);
 329 }
 330
 331 void wxTLWEventHandler( Widget wid,
 332                         XtPointer WXUNUSED(client_data),
 333                         XEvent* event,
 334                         Boolean* continueToDispatch)
 335 {
 336     wxTopLevelWindowMotif* tlw =
 337         (wxTopLevelWindowMotif*)wxGetWindowFromTable( wid );
 338
 339     if( tlw )
 340     {
 341         wxMouseEvent wxevent( wxEVT_NULL );
 342
 343         if( wxTranslateMouseEvent( wxevent, tlw, wid, event ) )
 344         {
 345             wxevent.SetEventObject( tlw );
 346             wxevent.SetId( tlw->GetId() );
 347             tlw->GetEventHandler()->ProcessEvent( wxevent );
 348         }
 349         else
 350         {
 351             // An attempt to implement OnCharHook by calling OnCharHook first;
 352             // if this returns TRUE, set continueToDispatch to False
 353             // (don't continue processing).
 354             // Otherwise set it to True and call OnChar.
 355             wxKeyEvent keyEvent( wxEVT_CHAR );
 356             if( wxTranslateKeyEvent( keyEvent, tlw, wid, event ))
 357             {
 358                 keyEvent.SetEventObject( tlw );
 359                 keyEvent.SetId( tlw->GetId() );
 360                 keyEvent.SetEventType( wxEVT_CHAR_HOOK );
 361                 if( tlw->GetEventHandler()->ProcessEvent( keyEvent ) )
 362                 {
 363                     *continueToDispatch = False;
 364                     return;
 365                 }
 366                 else
 367                 {
 368                     // For simplicity, OnKeyDown is the same as OnChar
 369                     // TODO: filter modifier key presses from OnChar
 370                     keyEvent.SetEventType( wxEVT_KEY_DOWN );
 371
 372                     // Only process OnChar if OnKeyDown didn't swallow it
 373                     if( !tlw->GetEventHandler()->ProcessEvent( keyEvent ) )
 374                     {
 375                         keyEvent.SetEventType( wxEVT_CHAR );
 376                         tlw->GetEventHandler()->ProcessEvent( keyEvent );
 377                     }
 378                 }
 379             }
 380         }
 381     }
 382
 383     *continueToDispatch = True;
 384 }
 385