contrib/src/fl/frmview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frmview.cpp
   3 // Purpose:     wxFrameView implementation. NOT USED IN FL.
   4 // Author:      Aleksandras Gluchovas
   5 // Modified by:
   6 // Created:     02/01/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Aleksandras Gluchovas
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13     #pragma implementation "frmview.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/wx.h"
  25 #endif
  26
  27 #include "wx/fl/frmview.h"
  28 #include "wx/utils.h"
  29
  30 /***** Implementation for class wxFrameView *****/
  31
  32 BEGIN_EVENT_TABLE( wxFrameView, wxEvtHandler )
  33
  34     EVT_IDLE( wxFrameView::OnIdle )
  35
  36 END_EVENT_TABLE()
  37
  38 void wxFrameView::OnIdle( wxIdleEvent& event)
  39 {
  40     event.Skip();
  41
  42     if ( mDoToolUpdates )
  43     {
  44         // TBD::
  45     }
  46 }
  47
  48 /*** public methods ***/
  49
  50 wxFrameView::wxFrameView()
  51
  52     : mpLayout( NULL ),
  53       mpFrameMgr( NULL )
  54 {}
  55
  56 wxFrameView::~wxFrameView()
  57 {
  58     if ( mpLayout ) delete mpLayout;
  59 }
  60
  61 wxFrame* wxFrameView::GetParentFrame()
  62 {
  63     return mpFrameMgr->GetParentFrame();
  64 }
  65
  66 wxWindow* wxFrameView::GetClientWindow()
  67 {
  68     return mpFrameMgr->GetClientWindow();
  69 }
  70
  71 void wxFrameView::Activate()
  72 {
  73     mpFrameMgr->ActivateView( this );
  74 }
  75
  76 void wxFrameView::Deactivate()
  77 {
  78     mpFrameMgr->DeactivateCurrentView();
  79 }
  80
  81 void wxFrameView::CreateLayout()
  82 {
  83     mpLayout = new wxFrameLayout( GetParentFrame(), mpFrameMgr->GetClientWindow(), FALSE );
  84 }
  85
  86 wxFrameLayout* wxFrameView::GetLayout()
  87 {
  88     return mpLayout;
  89 }
  90
  91 void wxFrameView::SetToolUpdates( bool doToolUpdates )
  92 {
  93     mDoToolUpdates = doToolUpdates;
  94 }
  95
  96 void wxFrameView::SetLayout( wxFrameLayout* pLayout )
  97 {
  98     if ( mpLayout ) delete mpLayout;
  99
 100     mpLayout = pLayout;
 101 }
 102
 103 wxFrameManager& wxFrameView::GetFrameManager()
 104 {
 105     return *mpFrameMgr;
 106 }
 107
 108 void wxFrameView::RegisterMenu( const wxString& topMenuName )
 109 {
 110     mTopMenus.Add( topMenuName );
 111 }
 112
 113 #if 0
 114
 115 /***** Implementation for class wxFrameViewSerializer *****/
 116
 117 // NOTE:: currently "stipple" property of the brush is not serialized
 118
 119 class wxFrameViewSerializer : public wxEvtHandlerSerializer
 120 {
 121     DECLARE_SERIALIZER_CLASS( wxFrameViewSerializer );
 122
 123     static void Serialize( wxObject* pObj, wxObjectStorage& store );
 124 };
 125
 126 IMPLEMENT_SERIALIZER_CLASS( wxFrameView,
 127                             wxFrameViewSerializer,
 128                             wxFrameViewSerializer::Serialize,
 129                             NO_CLASS_INIT )
 130
 131 void wxFrameViewSerializer::Serialize( wxObject* pObj, wxObjectStorage& store )
 132 {
 133     // wxFrameViewSerializer is a kind of wxEvtHandler - peform serialization of
 134     // the base class first
 135
 136     info.SerializeInherited( pObj, store );
 137
 138     wxFrameView* pView = (wxFrameView*)pObj;
 139
 140     store.XchgObjPtr( (wxObject**) &pView->mpFrameMgr );
 141     store.XchgObjPtr( (wxObject**) &pView->mpLayout );
 142     store.XchgBool  ( pView->mDoToolUpdates );
 143
 144     // serialize members in derived classes
 145
 146     pView->OnSerialize( store );
 147 }
 148
 149 #endif
 150
 151 /***** Implementation for class wxFrameManager *****/
 152
 153 void wxFrameManager::DoSerialize( wxObjectStorage& WXUNUSED(store) )
 154 {
 155 #if 0
 156     store.AddInitialRef( mpFrameWnd );
 157     store.AddInitialRef( this );
 158     if ( mpClientWnd ) store.AddInitialRef( mpClientWnd );
 159
 160     store.XchgObj( (wxObject*) &mViews );
 161     store.XchgInt( mActiveViewNo );
 162
 163     store.Finalize(); // finish serialization
 164 #endif
 165 }
 166
 167 void wxFrameManager::DestroyViews()
 168 {
 169     DeactivateCurrentView();
 170
 171     wxNode* pNode = mViews.GetFirst();
 172
 173     while ( pNode )
 174     {
 175         delete (wxFrameView*)pNode->GetData();
 176
 177         pNode = pNode->GetNext();
 178     }
 179
 180     if ( mActiveViewNo != -1 && GetParentFrame() )
 181
 182         GetParentFrame()->SetNextHandler( NULL );
 183 }
 184
 185 int wxFrameManager::GetViewNo( wxFrameView* pView )
 186 {
 187     wxNode* pNode = mViews.GetFirst();
 188     int n = 0;
 189
 190     while ( pNode )
 191     {
 192         if ( (wxFrameView*)pNode->GetData() == pView )
 193
 194             return n;
 195
 196         ++n;
 197         pNode = pNode->GetNext();
 198     }
 199
 200     return -1;
 201 }
 202
 203 void wxFrameManager::EnableMenusForView( wxFrameView* pView, bool enable )
 204 {
 205     wxMenuBar* pMenuBar = GetParentFrame()->GetMenuBar();
 206     int count = pMenuBar->GetMenuCount();
 207
 208     if ( !pMenuBar )
 209         return;
 210
 211     wxStringListNode* pNode = pView->mTopMenus.GetFirst();
 212
 213     int i;
 214     while ( pNode )
 215     {
 216         for ( i = 0; i != count; ++i )
 217         {
 218             if ( pMenuBar->GetMenu(i)->GetTitle() == pNode->GetData() )
 219                 pMenuBar->EnableTop( i, enable );
 220         }
 221
 222         pNode = pNode->GetNext();
 223     }
 224 }
 225
 226 void wxFrameManager::SyncAllMenus()
 227 {
 228     wxNode* pNode = mViews.GetFirst();
 229     int i = 0;
 230
 231     while ( pNode )
 232     {
 233         if ( i != mActiveViewNo )
 234
 235             EnableMenusForView( (wxFrameView*)pNode->GetData(), FALSE );
 236
 237         pNode = pNode->GetNext();
 238     }
 239
 240     EnableMenusForView( GetView( mActiveViewNo ), TRUE );
 241 }
 242
 243 /*** public methods ***/
 244
 245 wxFrameManager::wxFrameManager()
 246
 247     : mpFrameWnd( NULL  ),
 248       mActiveViewNo( -1 ),
 249       mpClientWnd( NULL )
 250 {
 251 }
 252
 253 wxFrameManager::~wxFrameManager()
 254 {
 255     SaveViewsNow();
 256     DestroyViews();
 257 }
 258
 259 void wxFrameManager::Init( wxWindow* pMainFrame, const wxString& settingsFile )
 260 {
 261     mSettingsFile = settingsFile;
 262     mpFrameWnd    = pMainFrame;
 263
 264     wxNode* pNode = mViews.GetFirst();
 265
 266     while ( pNode )
 267     {
 268         wxFrameView* pView = (wxFrameView*)pNode->GetData();
 269
 270         pView->OnInit();
 271         pView->OnInitMenus();
 272
 273         pNode = pNode->GetNext();
 274     }
 275
 276     if ( !ReloadViews() )
 277     {
 278         // if loading of settings file failed (e.g. was not found),
 279         // do recreation of items in each view
 280
 281         pNode = mViews.GetFirst();
 282
 283         while ( pNode )
 284         {
 285             wxFrameView* pView = (wxFrameView*)pNode->GetData();
 286
 287             pView->OnRecreate();
 288
 289             pNode = pNode->GetNext();
 290         }
 291     }
 292
 293     if ( mActiveViewNo >= (int)mViews.GetCount() )
 294         mActiveViewNo = -1;
 295
 296     ActivateView( GetView( ( mActiveViewNo == -1 ) ? 0 : mActiveViewNo ) );
 297
 298     SyncAllMenus();
 299 }
 300
 301 void wxFrameManager::AddView( wxFrameView* pFrmView )
 302 {
 303     mViews.Append( pFrmView );
 304
 305     pFrmView->mpFrameMgr = this; // back ref.
 306 }
 307
 308 void wxFrameManager::RemoveView( wxFrameView* WXUNUSED(pFrmView) )
 309 {
 310     // TBD::
 311     wxFAIL_MSG( _T("wxFrameManager::RemoveView() has not been implemented yet.") );
 312 }
 313
 314 int wxFrameManager::GetActiveViewNo()
 315 {
 316     return mActiveViewNo;
 317 }
 318
 319 wxFrameView* wxFrameManager::GetActiveView()
 320 {
 321     wxNode* pNode = mViews.Item( mActiveViewNo );
 322
 323     if ( pNode ) return (wxFrameView*)pNode->GetData();
 324             else return NULL;
 325 }
 326
 327 wxNode* wxFrameManager::GetActiveViewNode()
 328 {
 329     return mViews.Item( mActiveViewNo );
 330 }
 331
 332 wxFrame* wxFrameManager::GetParentFrame()
 333 {
 334     return ((wxFrame*)mpFrameWnd);
 335 }
 336
 337 wxWindow* wxFrameManager::GetParentWindow()
 338 {
 339     return mpFrameWnd;
 340 }
 341
 342 wxFrameView* wxFrameManager::GetView( int viewNo )
 343 {
 344     wxNode* pNode = mViews.Item( viewNo );
 345
 346     if ( pNode ) return (wxFrameView*)pNode->GetData();
 347             else return NULL;
 348 }
 349
 350 void wxFrameManager::ActivateView( int viewNo )
 351 {
 352     ActivateView( GetView( viewNo ) );
 353 }
 354
 355 void wxFrameManager::ActivateView( wxFrameView* pFrmView )
 356 {
 357     DeactivateCurrentView();
 358
 359     mActiveViewNo = GetViewNo( pFrmView );
 360
 361     if ( pFrmView->mpLayout )
 362
 363         pFrmView->mpLayout->Activate();
 364
 365     // FIXME:: we would have used PushEventHandler(),
 366     //         but wxFrame bypasses attached handlers when
 367     //         handling wxCommand events!
 368
 369     GetParentFrame()->PushEventHandler( pFrmView );
 370
 371     EnableMenusForView( pFrmView, TRUE );
 372 }
 373
 374 void wxFrameManager::SetClinetWindow( wxWindow* pFrameClient )
 375 {
 376     if ( mpClientWnd ) mpClientWnd->Destroy();
 377
 378     mpClientWnd = pFrameClient;
 379 }
 380
 381 wxWindow* wxFrameManager::GetClientWindow()
 382 {
 383     if ( !mpClientWnd )
 384
 385         mpClientWnd = new wxWindow( GetParentFrame(), -1 );
 386
 387     return mpClientWnd;
 388 }
 389
 390 void wxFrameManager::DeactivateCurrentView()
 391 {
 392     if ( mActiveViewNo == -1 )
 393         return;
 394
 395     wxFrameView* pView = GetActiveView();
 396
 397     // FOR NOW::
 398     wxASSERT( GetParentFrame()->GetEventHandler() == pView );
 399
 400     GetParentFrame()->PopEventHandler();
 401
 402     if ( pView->mpLayout )
 403         pView->mpLayout->Deactivate();
 404
 405     EnableMenusForView( pView, FALSE );
 406 }
 407
 408 void wxFrameManager::SaveViewsNow()
 409 {
 410 #if 0
 411     if ( mSettingsFile == "" ) return;
 412
 413     wxIOStreamWrapper stm;
 414     stm.CreateForOutput( mSettingsFile );
 415
 416     mStore.SetDataStream( stm );
 417     DoSerialize( mStore );
 418 #endif
 419 }
 420
 421 bool wxFrameManager::ReloadViews()
 422 {
 423     return FALSE;
 424
 425     // TBD: ????
 426 #if 0
 427     if ( mSettingsFile == "" || !wxFileExists( mSettingsFile ) )
 428         return FALSE;
 429
 430     DestroyViews();
 431
 432     wxIOStreamWrapper stm;
 433     stm.CreateForInput( mSettingsFile );
 434
 435     mStore.SetDataStream( stm );
 436     DoSerialize( mStore );
 437
 438     return TRUE;
 439 #endif
 440 }
 441
 442 bool wxFrameManager::ViewsAreLoaded()
 443 {
 444     return ( mViews.GetCount() != 0 );
 445 }
 446