contrib/src/fl/frmview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        No names yet.
   3 // Purpose:     Contrib. demo
   4 // Author:      Aleksandras Gluchovas
   5 // Modified by:
   6 // Created:     02/01/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Aleksandras Gluchovas
   9 // Licence:     wxWindows license
  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         int o = 0;  //glt
  45         ++o;
  46
  47         // TBD::
  48     }
  49 }
  50
  51 /*** public methods ***/
  52
  53 wxFrameView::wxFrameView()
  54
  55     : mpLayout( NULL ),
  56       mpFrameMgr( NULL )
  57 {}
  58
  59 wxFrameView::~wxFrameView()
  60 {
  61     if ( mpLayout ) delete mpLayout;
  62 }
  63
  64 wxFrame* wxFrameView::GetParentFrame()
  65 {
  66     return mpFrameMgr->GetParentFrame();
  67 }
  68
  69 wxWindow* wxFrameView::GetClientWindow()
  70 {
  71     return mpFrameMgr->GetClientWindow();
  72 }
  73
  74 void wxFrameView::Activate()
  75 {
  76     mpFrameMgr->ActivateView( this );
  77 }
  78
  79 void wxFrameView::Deactivate()
  80 {
  81     mpFrameMgr->DeactivateCurrentView();
  82 }
  83
  84 void wxFrameView::CreateLayout()
  85 {
  86     mpLayout = new wxFrameLayout( GetParentFrame(), mpFrameMgr->GetClientWindow(), FALSE );
  87 }
  88
  89 wxFrameLayout* wxFrameView::GetLayout()
  90 {
  91     return mpLayout;
  92 }
  93
  94 void wxFrameView::SetToolUpdates( bool doToolUpdates )
  95 {
  96     mDoToolUpdates = doToolUpdates;
  97 }
  98
  99 void wxFrameView::SetLayout( wxFrameLayout* pLayout )
 100 {
 101     if ( mpLayout ) delete mpLayout;
 102
 103     mpLayout = pLayout;
 104 }
 105
 106 wxFrameManager& wxFrameView::GetFrameManager()
 107 {
 108     return *mpFrameMgr;
 109 }
 110
 111 void wxFrameView::RegisterMenu( const wxString& topMenuName )
 112 {
 113     mTopMenus.Add( topMenuName );
 114 }
 115
 116 #if 0
 117
 118 /***** Implementation for class wxFrameViewSerializer *****/
 119
 120 // NOTE:: currently "stipple" property of the brush is not serialized
 121
 122 class wxFrameViewSerializer : public wxEvtHandlerSerializer
 123 {
 124     DECLARE_SERIALIZER_CLASS( wxFrameViewSerializer );
 125
 126     static void Serialize( wxObject* pObj, wxObjectStorage& store );
 127 };
 128
 129 IMPLEMENT_SERIALIZER_CLASS( wxFrameView,
 130                             wxFrameViewSerializer,
 131                             wxFrameViewSerializer::Serialize,
 132                             NO_CLASS_INIT )
 133
 134 void wxFrameViewSerializer::Serialize( wxObject* pObj, wxObjectStorage& store )
 135 {
 136     // wxFrameViewSerializer is a kind of wxEvtHandler - peform serialization of
 137     // the base class first
 138
 139     info.SerializeInherited( pObj, store );
 140
 141     wxFrameView* pView = (wxFrameView*)pObj;
 142
 143     store.XchgObjPtr( (wxObject**) &pView->mpFrameMgr );
 144     store.XchgObjPtr( (wxObject**) &pView->mpLayout );
 145     store.XchgBool  ( pView->mDoToolUpdates );
 146
 147     // serialize members in derived classes
 148
 149     pView->OnSerialize( store );
 150 }
 151
 152 #endif
 153
 154 /***** Implementation for class wxFrameManager *****/
 155
 156 void wxFrameManager::DoSerialize( wxObjectStorage& store )
 157 {
 158 #if 0
 159     store.AddInitialRef( mpFrameWnd );
 160     store.AddInitialRef( this );
 161     if ( mpClientWnd ) store.AddInitialRef( mpClientWnd );
 162
 163     store.XchgObj( (wxObject*) &mViews );
 164     store.XchgInt( mActiveViewNo );
 165
 166     store.Finalize(); // finish serialization
 167 #endif
 168 }
 169
 170 void wxFrameManager::DestroyViews()
 171 {
 172     DeactivateCurrentView();
 173
 174     wxNode* pNode = mViews.First();
 175
 176     while ( pNode )
 177     {
 178         delete (wxFrameView*)pNode->Data();
 179
 180         pNode = pNode->Next();
 181     }
 182
 183     if ( mActiveViewNo != -1 && GetParentFrame() )
 184
 185         GetParentFrame()->SetNextHandler( NULL );
 186 }
 187
 188 int wxFrameManager::GetViewNo( wxFrameView* pView )
 189 {
 190     wxNode* pNode = mViews.First();
 191     int n = 0;
 192
 193     while ( pNode )
 194     {
 195         if ( (wxFrameView*)pNode->Data() == pView )
 196
 197             return n;
 198
 199         ++n;
 200         pNode = pNode->Next();
 201     }
 202
 203     return -1;
 204 }
 205
 206 void wxFrameManager::EnableMenusForView( wxFrameView* pView, bool enable )
 207 {
 208     wxMenuBar* pMenuBar = GetParentFrame()->GetMenuBar();
 209     int count = pMenuBar->GetMenuCount();
 210
 211     if ( !pMenuBar )
 212         return;
 213
 214     wxStringListNode* pNode = pView->mTopMenus.GetFirst();
 215
 216     int i;
 217     while ( pNode )
 218     {
 219         for ( i = 0; i != count; ++i )
 220         {
 221             if ( pMenuBar->GetMenu(i)->GetTitle() == pNode->GetData() )
 222                 pMenuBar->EnableTop( i, enable );
 223         }
 224
 225         pNode = pNode->GetNext();
 226     }
 227 }
 228
 229 void wxFrameManager::SyncAllMenus()
 230 {
 231     wxNode* pNode = mViews.First();
 232     int i = 0;
 233
 234     while ( pNode )
 235     {
 236         if ( i != mActiveViewNo )
 237
 238             EnableMenusForView( (wxFrameView*)pNode->GetData(), FALSE );
 239
 240         pNode = pNode->Next();
 241     }
 242
 243     EnableMenusForView( GetView( mActiveViewNo ), TRUE );
 244 }
 245
 246 /*** public methods ***/
 247
 248 wxFrameManager::wxFrameManager()
 249
 250     : mpFrameWnd( NULL  ),
 251       mActiveViewNo( -1 ),
 252       mpClientWnd( NULL )
 253 {
 254 }
 255
 256 wxFrameManager::~wxFrameManager()
 257 {
 258     SaveViewsNow();
 259     DestroyViews();
 260 }
 261
 262 void wxFrameManager::Init( wxWindow* pMainFrame, const wxString& settingsFile )
 263 {
 264     mSettingsFile = settingsFile;
 265     mpFrameWnd    = pMainFrame;
 266
 267     wxNode* pNode = mViews.First();
 268
 269     while ( pNode )
 270     {
 271         wxFrameView* pView = (wxFrameView*)pNode->Data();
 272
 273         pView->OnInit();
 274         pView->OnInitMenus();
 275
 276         pNode = pNode->Next();
 277     }
 278
 279     if ( !ReloadViews() )
 280     {
 281         // if loading of settings file failed (e.g. was not found),
 282         // do recreation of items in each view
 283
 284         pNode = mViews.First();
 285
 286         while ( pNode )
 287         {
 288             wxFrameView* pView = (wxFrameView*)pNode->Data();
 289
 290             pView->OnRecreate();
 291
 292             pNode = pNode->Next();
 293         }
 294     }
 295
 296     if ( mActiveViewNo >= mViews.Number() )
 297         mActiveViewNo = -1;
 298
 299     ActivateView( GetView( ( mActiveViewNo == -1 ) ? 0 : mActiveViewNo ) );
 300
 301     SyncAllMenus();
 302 }
 303
 304 void wxFrameManager::AddView( wxFrameView* pFrmView )
 305 {
 306     mViews.Append( pFrmView );
 307
 308     pFrmView->mpFrameMgr = this; // back ref.
 309 }
 310
 311 void wxFrameManager::RemoveView( wxFrameView* pFrmView )
 312 {
 313     // TBD::
 314     wxFAIL_MSG("wxFrameManager::RemoveView() has not been implemented yet.");
 315 }
 316
 317 int wxFrameManager::GetActiveViewNo()
 318 {
 319     return mActiveViewNo;
 320 }
 321
 322 wxFrameView* wxFrameManager::GetActiveView()
 323 {
 324     wxNode* pNode = mViews.Nth( mActiveViewNo );
 325
 326     if ( pNode ) return (wxFrameView*)pNode->Data();
 327             else return NULL;
 328 }
 329
 330 wxNode* wxFrameManager::GetActiveViewNode()
 331 {
 332     return mViews.Nth( mActiveViewNo );
 333 }
 334
 335 wxFrame* wxFrameManager::GetParentFrame()
 336 {
 337     return ((wxFrame*)mpFrameWnd);
 338 }
 339
 340 wxWindow* wxFrameManager::GetParentWindow()
 341 {
 342     return mpFrameWnd;
 343 }
 344
 345 wxFrameView* wxFrameManager::GetView( int viewNo )
 346 {
 347     wxNode* pNode = mViews.Nth( viewNo );
 348
 349     if ( pNode ) return (wxFrameView*)pNode->Data();
 350             else return NULL;
 351 }
 352
 353 void wxFrameManager::ActivateView( int viewNo )
 354 {
 355     ActivateView( GetView( viewNo ) );
 356 }
 357
 358 void wxFrameManager::ActivateView( wxFrameView* pFrmView )
 359 {
 360     DeactivateCurrentView();
 361
 362     mActiveViewNo = GetViewNo( pFrmView );
 363
 364     if ( pFrmView->mpLayout )
 365
 366         pFrmView->mpLayout->Activate();
 367
 368     // FIXME:: we would have used PushEventHandler(),
 369     //         but wxFrame bypasses attached handlers when
 370     //         handling wxCommand events!
 371
 372     GetParentFrame()->PushEventHandler( pFrmView );
 373
 374     EnableMenusForView( pFrmView, TRUE );
 375 }
 376
 377 void wxFrameManager::SetClinetWindow( wxWindow* pFrameClient )
 378 {
 379     if ( mpClientWnd ) mpClientWnd->Destroy();
 380
 381     mpClientWnd = pFrameClient;
 382 }
 383
 384 wxWindow* wxFrameManager::GetClientWindow()
 385 {
 386     if ( !mpClientWnd )
 387
 388         mpClientWnd = new wxWindow( GetParentFrame(), -1 );
 389
 390     return mpClientWnd;
 391 }
 392
 393 void wxFrameManager::DeactivateCurrentView()
 394 {
 395     if ( mActiveViewNo == -1 )
 396         return;
 397
 398     wxFrameView* pView = GetActiveView();
 399
 400     // FOR NOW::
 401     wxASSERT( GetParentFrame()->GetEventHandler() == pView );
 402
 403     GetParentFrame()->PopEventHandler();
 404
 405     if ( pView->mpLayout )
 406         pView->mpLayout->Deactivate();
 407
 408     EnableMenusForView( pView, FALSE );
 409 }
 410
 411 void wxFrameManager::SaveViewsNow()
 412 {
 413 #if 0
 414     if ( mSettingsFile == "" ) return;
 415
 416     wxIOStreamWrapper stm;
 417     stm.CreateForOutput( mSettingsFile );
 418
 419     mStore.SetDataStream( stm );
 420     DoSerialize( mStore );
 421 #endif
 422 }
 423
 424 bool wxFrameManager::ReloadViews()
 425 {
 426     return FALSE;
 427
 428     // TBD: ????
 429 #if 0
 430     if ( mSettingsFile == "" || !wxFileExists( mSettingsFile ) )
 431         return FALSE;
 432
 433     DestroyViews();
 434
 435     wxIOStreamWrapper stm;
 436     stm.CreateForInput( mSettingsFile );
 437
 438     mStore.SetDataStream( stm );
 439     DoSerialize( mStore );
 440
 441     return TRUE;
 442 #endif
 443 }
 444
 445 bool wxFrameManager::ViewsAreLoaded()
 446 {
 447     return ( mViews.Number() != 0 );
 448 }
 449