contrib/src/fl/bardragpl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bardragpl.cpp
   3 // Purpose:     cbBarDragPlugin implementation
   4 // Author:      Aleksandras Gluchovas
   5 // Modified by:
   6 // Created:     23/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Aleksandras Gluchovas
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13     #pragma implementation "bardragpl.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/bardragpl.h"
  28
  29 #define POS_UNDEFINED -32768
  30
  31 // helpers, FOR NOW:: static
  32
  33 static inline bool rect_hits_rect( const wxRect& r1, const wxRect& r2 )
  34 {
  35         if ( ( r2.x >= r1.x && r2.x <= r1.x + r1.width ) ||
  36                  ( r1.x >= r2.x && r1.x <= r2.x + r2.width ) )
  37
  38                 if ( ( r2.y >= r1.y && r2.y <= r1.y + r1.height ) ||
  39                          ( r1.y >= r2.y && r1.y <= r2.y + r2.height ) )
  40
  41                         return TRUE;
  42
  43         return FALSE;
  44 }
  45
  46 static inline bool rect_contains_point( const wxRect& rect, int x, int y )
  47 {
  48         return ( x >= rect.x &&
  49                      y >= rect.y &&
  50                          x <  rect.x + rect.width  &&
  51                          y <  rect.y + rect.height );
  52 }
  53
  54 /***** Implementation for class cbBarDragPlugin *****/
  55
  56 IMPLEMENT_DYNAMIC_CLASS( cbBarDragPlugin, cbPluginBase )
  57
  58 BEGIN_EVENT_TABLE( cbBarDragPlugin, cbPluginBase )
  59
  60         //EVT_PL_LEFT_DOWN          ( cbBarDragPlugin::OnLButtonDown      )
  61         EVT_PL_LEFT_UP                    ( cbBarDragPlugin::OnLButtonUp        )
  62         EVT_PL_MOTION                     ( cbBarDragPlugin::OnMouseMove        )
  63         EVT_PL_DRAW_HINT_RECT     ( cbBarDragPlugin::OnDrawHintRect     )
  64         EVT_PL_START_BAR_DRAGGING ( cbBarDragPlugin::OnStartBarDragging )
  65         EVT_PL_LEFT_DCLICK                ( cbBarDragPlugin::OnLDblClick                )
  66
  67 END_EVENT_TABLE()
  68
  69 cbBarDragPlugin::cbBarDragPlugin(void)
  70
  71         : mBarDragStarted    ( FALSE ),
  72           mCanStick          ( TRUE ),
  73           mpScrDc            ( NULL ),
  74           mpCurCursor        ( NULL ),
  75           mpDraggedBar       ( NULL ),
  76           mInClientHintBorder( 4 )
  77 {}
  78
  79 cbBarDragPlugin::cbBarDragPlugin( wxFrameLayout* pPanel, int paneMask )
  80
  81         : cbPluginBase( pPanel, paneMask ),
  82
  83           mBarDragStarted    ( FALSE ),
  84           mCanStick          ( TRUE ),
  85           mpScrDc            ( NULL ),
  86           mpCurCursor        ( NULL ),
  87           mpDraggedBar       ( NULL ),
  88           mInClientHintBorder( 4 )
  89 {}
  90
  91 cbBarDragPlugin::~cbBarDragPlugin()
  92 {
  93         // nothing
  94 }
  95
  96 // helper methods (protected)
  97
  98 // clips (top/bottom) or (right/left) edges against the frame's bounding rect.
  99
 100 void do_clip_edges( int len, int& rectPos, int& rectLen )
 101 {
 102         if ( rectPos < 0 )
 103         {
 104                 rectLen += rectPos;
 105                 rectPos = 0;
 106                 if ( rectLen < 0 )
 107             rectLen = 1;
 108         }
 109         else
 110         if ( rectPos > len-1 )
 111         {
 112                 rectPos = len-1;
 113                 rectLen = 1;
 114         }
 115         else
 116         if ( rectPos + rectLen - 1 > len )
 117
 118                 rectLen -= (rectPos + rectLen) - len + 1;
 119 }
 120
 121 void cbBarDragPlugin::ClipRectInFrame( wxRect& rect )
 122 {
 123         int w, h;
 124         mpLayout->GetParentFrame().GetClientSize( &w, &h );
 125
 126         do_clip_edges( w, rect.x, rect.width  );
 127         do_clip_edges( h, rect.y, rect.height );
 128 }
 129
 130 void cbBarDragPlugin::ClipPosInFrame( wxPoint& pos )
 131 {
 132         int w, h;
 133         mpLayout->GetParentFrame().GetClientSize( &w, &h );
 134
 135         if ( pos.x < 0 )
 136         pos.x = 0;
 137         if ( pos.y < 0 )
 138         pos.y = 0;
 139         if ( pos.x > w )
 140         pos.x = w-1;
 141         if ( pos.y > h )
 142         pos.y = h-1;
 143 }
 144
 145 void cbBarDragPlugin::AdjustHintRect( wxPoint& mousePos )
 146 {
 147         mHintRect.x = mousePos.x - mMouseInRectX;
 148         mHintRect.y = mousePos.y - mMouseInRectY;
 149 }
 150
 151 cbDockPane* cbBarDragPlugin::HitTestPanes( wxRect& rect )
 152 {
 153         //wxRect clipped = rect;
 154
 155         //ClipRectInFrame( clipped );
 156
 157         cbDockPane** pPanes = mpLayout->GetPanesArray();
 158
 159         for( int i = 0; i != MAX_PANES; ++i )
 160
 161                 if ( rect_hits_rect( pPanes[i]->mBoundsInParent, rect ) )
 162
 163                         return pPanes[i];
 164
 165         return NULL;
 166 }
 167
 168 cbDockPane* cbBarDragPlugin::HitTestPanes( wxPoint& pos )
 169 {
 170         wxPoint clipped = pos;
 171
 172         //ClipPosInFrame( pos );
 173
 174         cbDockPane** pPanes = mpLayout->GetPanesArray();
 175
 176         for( int i = 0; i != MAX_PANES; ++i )
 177
 178                 if ( rect_contains_point( pPanes[i]->mBoundsInParent, clipped.x, clipped.y ) )
 179
 180                         return pPanes[i];
 181
 182         return NULL;
 183 }
 184
 185 bool cbBarDragPlugin::HitsPane( cbDockPane* pPane, wxRect& rect )
 186 {
 187         return rect_hits_rect( pPane->mBoundsInParent, rect );
 188 }
 189
 190 int cbBarDragPlugin::GetDistanceToPane( cbDockPane* pPane, wxPoint& mousePos )
 191 {
 192         wxRect& bounds = pPane->mBoundsInParent;
 193
 194         switch( pPane->mAlignment )
 195         {
 196                 case FL_ALIGN_TOP    : return mousePos.y - ( bounds.y + bounds.height );
 197
 198                 case FL_ALIGN_BOTTOM : return bounds.y - mousePos.y;
 199
 200                 case FL_ALIGN_LEFT   : return mousePos.x - ( bounds.x + bounds.width  );
 201
 202                 case FL_ALIGN_RIGHT  : return bounds.x - mousePos.x;
 203
 204                 default : return 0; // never reached
 205         }
 206
 207 //      return 0;
 208 }
 209
 210 bool cbBarDragPlugin::IsInOtherPane( wxPoint& mousePos )
 211 {
 212         cbDockPane* pPane = HitTestPanes( mousePos );
 213
 214         if ( pPane && pPane != mpCurPane ) return TRUE;
 215                                                                   else return FALSE;
 216 }
 217
 218 bool cbBarDragPlugin::IsInClientArea( wxPoint& mousePos )
 219 {
 220         return  ( HitTestPanes( mousePos ) == NULL );
 221 }
 222
 223 bool cbBarDragPlugin::IsInClientArea( wxRect& rect )
 224 {
 225         return ( HitTestPanes( rect ) == NULL );
 226 }
 227
 228 void cbBarDragPlugin::CalcOnScreenDims( wxRect& rect )
 229 {
 230         if ( !mpCurPane || mpDraggedBar->IsFixed() ) return;
 231
 232         wxRect inPane = rect;
 233
 234         mpCurPane->FrameToPane( &inPane );
 235
 236         int rowNo = mpCurPane->GetRowAt( inPane.y, inPane.y + inPane.height );
 237
 238         bool isMaximized = ( rowNo >= (int)mpCurPane->GetRowList().Count() || rowNo < 0 );
 239
 240         if ( isMaximized )
 241         {
 242                 inPane.x = 0;
 243                 inPane.width = mpCurPane->mPaneWidth;
 244
 245                 mpCurPane->PaneToFrame( &inPane );
 246
 247                 rect = inPane;
 248         }
 249 }
 250
 251 // helpers
 252
 253 static inline void check_upper_overrun( int& pos, int width, int mousePos )
 254 {
 255         if ( mousePos >= pos + width )
 256
 257                 pos = mousePos - width/2;
 258 }
 259
 260 static inline void check_lower_overrun( int& pos, int width, int mousePos )
 261 {
 262         if ( mousePos <= pos )
 263
 264                 pos = mousePos - width/2;
 265 }
 266
 267 void cbBarDragPlugin::StickToPane( cbDockPane* pPane, wxPoint& mousePos )
 268 {
 269         int wInPane = GetBarWidthInPane ( pPane );
 270         int hInPane = GetBarHeightInPane( pPane );
 271
 272         // adjsut hint-rect horizontally (in pane's orientation)
 273
 274         if ( pPane->IsHorizontal() )
 275         {
 276                 mHintRect.width  = wInPane;
 277                 mHintRect.height = hInPane;
 278         }
 279         else
 280         {
 281                 mHintRect.height = wInPane;
 282                 mHintRect.width  = hInPane;
 283         }
 284
 285         // adjsut hint-rect vertically (in pane's orientation)
 286
 287         wxRect& bounds = pPane->mBoundsInParent;
 288
 289         // TRUE, if hint enters the pane through it's lower edge
 290
 291         bool fromLowerEdge = ( pPane->IsHorizontal() )
 292                                                  ? mousePos.y > bounds.y
 293                                                  : mousePos.x > bounds.x;
 294
 295         // NOTE:: about all the below min/max things: they are meant to ensure
 296         //        that the mouse pointer doesn't overrun (leave) the hint-rectangle
 297         //        when its dimensions are recalculated upon sticking it to the pane
 298
 299         if ( pPane->IsHorizontal() && fromLowerEdge )
 300         {
 301                 int paneBottomEdgeY = bounds.y + bounds.height;
 302
 303                 mHintRect.y = wxMin( paneBottomEdgeY, mousePos.y );
 304
 305                 check_lower_overrun( mHintRect.y, hInPane, mousePos.y );
 306
 307         }
 308         else
 309         if ( pPane->IsHorizontal() && !fromLowerEdge )
 310         {
 311                 int paneTopEdgeY = bounds.y;
 312
 313                 mHintRect.y = wxMax( paneTopEdgeY - hInPane, mousePos.y - hInPane );
 314
 315                 check_upper_overrun( mHintRect.y, hInPane, mousePos.y );
 316         }
 317         else
 318         if ( !pPane->IsHorizontal() && fromLowerEdge )
 319         {
 320                 int paneRightEdgeX = bounds.x + bounds.width;
 321
 322                 mHintRect.x = wxMin( paneRightEdgeX, mousePos.x );
 323
 324                 check_lower_overrun( mHintRect.x, hInPane, mousePos.x );
 325         }
 326         else
 327         if ( !pPane->IsHorizontal() && !fromLowerEdge )
 328         {
 329                 int paneLeftEdgeX = bounds.x;
 330
 331                 mHintRect.x = wxMax( paneLeftEdgeX - hInPane, mousePos.x - hInPane );
 332
 333                 check_upper_overrun( mHintRect.x, hInPane, mousePos.x );
 334         }
 335
 336         mMouseInRectX = mousePos.x - mHintRect.x;
 337         mMouseInRectY = mousePos.y - mHintRect.y;
 338
 339         mpCurPane = pPane; // memorize pane to which the hint is currently sticked
 340 }
 341
 342 void cbBarDragPlugin::UnstickFromPane( cbDockPane* pPane, wxPoint& mousePos )
 343 {
 344         // unsticking causes rectangle to get the shape in which
 345         // dragged control-bar would be when floated
 346
 347         int newWidth  = mpDraggedBar->mDimInfo.mSizes[wxCBAR_FLOATING].x;
 348         int newHeight = mpDraggedBar->mDimInfo.mSizes[wxCBAR_FLOATING].y;
 349
 350         wxRect& flBounds = mpDraggedBar->mDimInfo.mBounds[wxCBAR_FLOATING];
 351
 352         if ( flBounds.width != -1 )
 353         {
 354                 newWidth  = flBounds.width;
 355                 newHeight = flBounds.height;
 356         }
 357
 358         mHintRect.width  = newWidth;
 359         mHintRect.height = newHeight;
 360
 361         wxRect& bounds = pPane->mBoundsInParent;
 362
 363         // TRUE, if hint leaves the pane through it's lower edge
 364
 365         bool fromLowerEdge = ( pPane->IsHorizontal() )
 366                                                  ? mousePos.y > bounds.y
 367                                                  : mousePos.x > bounds.x;
 368
 369         // NOTE:: ...all the below min/max things - see comments about it in StickToPane(..)
 370
 371         if ( pPane->IsHorizontal() && fromLowerEdge )
 372         {
 373 //              bool fromLowerEdge = mousePos.y > bounds.y;
 374
 375                 mHintRect.y = wxMax( bounds.y + bounds.height + 1, mousePos.y - newHeight );
 376
 377                 check_upper_overrun( mHintRect.y, newHeight, mousePos.y );
 378
 379                 // this is how MFC's hint behaves:
 380
 381                 if ( mMouseInRectX > newWidth )
 382
 383                         mHintRect.x = mousePos.x - ( newWidth / 2 );
 384         }
 385         else
 386         if ( pPane->IsHorizontal() && !fromLowerEdge )
 387         {
 388                 mHintRect.y = wxMin( bounds.y - newHeight - 1, mousePos.y );
 389
 390                 // -/-
 391
 392                 if ( mMouseInRectX > newWidth )
 393
 394                         mHintRect.x = mousePos.x - ( newWidth / 2 );
 395
 396                 check_lower_overrun( mHintRect.y, newHeight, mousePos.y );
 397         }
 398         else
 399         if ( !pPane->IsHorizontal() && fromLowerEdge )
 400         {
 401                 mHintRect.x = wxMax( bounds.x + bounds.width, mousePos.x - newWidth );
 402
 403                 // -/-
 404
 405                 if ( mMouseInRectY > newHeight )
 406
 407                         mHintRect.y = mousePos.y - ( newHeight / 2 );
 408
 409                 check_upper_overrun( mHintRect.x, newWidth, mousePos.x );
 410         }
 411         else
 412         if ( !pPane->IsHorizontal() && !fromLowerEdge )
 413         {
 414                 mHintRect.x = wxMin( bounds.x - newWidth - 1, mousePos.x );
 415
 416                 // -/-
 417
 418                 if ( mMouseInRectY > newHeight )
 419
 420                         mHintRect.y = mousePos.y - ( newHeight / 2 );
 421
 422                 check_lower_overrun( mHintRect.x, newWidth, mousePos.x );
 423         }
 424
 425         mMouseInRectX = mousePos.x - mHintRect.x;
 426         mMouseInRectY = mousePos.y - mHintRect.y;
 427
 428         mpCurPane = NULL;
 429 }
 430
 431 int cbBarDragPlugin::GetBarWidthInPane( cbDockPane* pPane )
 432 {
 433         if ( pPane == mpSrcPane )
 434
 435                 return mBarWidthInSrcPane;
 436
 437         // this is how MFC's bars behave:
 438
 439         if ( pPane->IsHorizontal() )
 440
 441                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_HORIZONTALLY].x;
 442         else
 443                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_VERTICALLY  ].x;
 444 }
 445
 446 int cbBarDragPlugin::GetBarHeightInPane( cbDockPane* pPane )
 447 {
 448         if ( pPane->IsHorizontal() )
 449
 450                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_HORIZONTALLY].y;
 451         else
 452                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_VERTICALLY  ].y;
 453 }
 454
 455 void cbBarDragPlugin::ShowHint( bool prevWasInClient )
 456 {
 457         bool wasDocked = FALSE;
 458
 459
 460         if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE )
 461         {
 462                 // do heavy calculations first
 463
 464                 wxRect actualRect = mHintRect; // will be adjusted depending on drag-settings
 465
 466                 if ( mpSrcPane->mProps.mExactDockPredictionOn && mpCurPane )
 467                 {
 468                         bool success = mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 469
 470                         wxASSERT( success ); // DBG::
 471
 472                         actualRect = mpDraggedBar->mBounds;
 473
 474                         mpCurPane->PaneToFrame( &actualRect );
 475                 }
 476                 else
 477                         CalcOnScreenDims( actualRect );
 478
 479                 // release previous hint
 480
 481                 if ( mPrevHintRect.x != POS_UNDEFINED )
 482                 {
 483                         // erase previous rectangle
 484
 485                         cbDrawHintRectEvent evt( mPrevHintRect, prevWasInClient, TRUE, FALSE );
 486
 487                         mpLayout->FirePluginEvent( evt );
 488                 }
 489
 490                 // draw new hint
 491
 492                 cbDrawHintRectEvent evt( actualRect, mpCurPane == NULL, FALSE, FALSE );
 493
 494                 mpLayout->FirePluginEvent( evt );
 495
 496                 mPrevHintRect = actualRect;
 497         }
 498         else
 499         {
 500                 // otherwise, if real-time updates option is ON
 501
 502             if ( mpDraggedBar->mState != wxCBAR_FLOATING && !mpCurPane )
 503             {
 504                     mpLayout->SetBarState( mpDraggedBar, wxCBAR_FLOATING, TRUE );
 505             }
 506          else
 507             if ( mpDraggedBar->mState == wxCBAR_FLOATING && mpCurPane )
 508             {
 509                     mpLayout->SetBarState( mpDraggedBar, wxCBAR_DOCKED_HORIZONTALLY, FALSE );
 510
 511                     wasDocked = TRUE;
 512             }
 513
 514                 if ( mpCurPane )
 515                 {
 516                         mpLayout->GetUpdatesManager().OnStartChanges();
 517
 518                         if ( wasDocked )
 519
 520                                 mpDraggedBar->mUMgrData.SetDirty( TRUE );
 521
 522                         bool success = mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 523
 524                         wxASSERT( success ); // DBG ::
 525
 526                         mpLayout->GetUpdatesManager().OnFinishChanges();
 527                         mpLayout->GetUpdatesManager().UpdateNow();
 528                 }
 529                 else
 530                 {
 531                         if ( mpLayout->mFloatingOn )
 532                         {
 533                                 // move the top-most floated bar around as user drags the hint
 534
 535                                 mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ] = mHintRect;
 536
 537                                 mpLayout->ApplyBarProperties( mpDraggedBar );
 538                         }
 539                 }
 540         }
 541 }
 542
 543 /*** event handlers ***/
 544
 545 void cbBarDragPlugin::OnMouseMove( cbMotionEvent& event )
 546 {
 547         // calculate postion in frame's coordiantes
 548
 549         if ( !mBarDragStarted )
 550         {
 551                 event.Skip(); // pass event to the next plugin
 552                 return;
 553         }
 554
 555         wxPoint mousePos = event.mPos;
 556
 557         event.mpPane->PaneToFrame( &mousePos.x, &mousePos.y );
 558
 559         bool   prevIsInClient = ( mpCurPane == 0 );
 560
 561         AdjustHintRect( mousePos );
 562
 563         // if the hint-rect is not "tempted" to any pane yet
 564
 565         if ( mpCurPane == NULL )
 566         {
 567                 cbDockPane* pPane = HitTestPanes( mHintRect );
 568
 569                 if ( !pPane )
 570
 571                         // enable sticking again, if we've left the pane completely
 572                         mCanStick = TRUE;
 573
 574                 if ( mCanStick && pPane &&
 575                          GetDistanceToPane( pPane, mousePos ) < GetBarHeightInPane( pPane ) )
 576
 577                         StickToPane( pPane, mousePos );
 578                 else
 579                         if ( pPane && HitTestPanes( mousePos ) == pPane && 0 ) // FOR NOW:: disabled
 580
 581                                 StickToPane( pPane, mousePos );
 582         }
 583         else
 584         {
 585                 // otherwise, when rect is now sticked to some of the panes
 586                 // check if it should still remain in this pane
 587
 588                 mCanStick = TRUE;
 589
 590                 bool mouseInOther = IsInOtherPane( mousePos );
 591
 592                 if ( mouseInOther )
 593                 {
 594                                 cbDockPane* pPane = HitTestPanes( mousePos );
 595
 596                                 StickToPane( pPane, mousePos );
 597                 }
 598                 else
 599                 {
 600                         if ( IsInClientArea( mousePos ) )
 601                         {
 602                                 cbDockPane* pPane = HitTestPanes( mHintRect );
 603
 604                                 if ( pPane &&
 605                                          pPane != mpCurPane &&
 606                                          GetDistanceToPane( pPane, mousePos ) < GetBarHeightInPane( pPane ) )
 607
 608                                                 StickToPane( pPane, mousePos );
 609                                 else
 610                                 if ( !pPane )
 611                                 {
 612                                         UnstickFromPane( mpCurPane, mousePos );
 613
 614                                         // FOR NOW:: disabled, would cause some mess
 615                                         //mCanStick = FALSE; // prevents from sticking to this
 616                                                                          // pane again, flag is reset when hint-rect
 617                                                                          // leaves the pane completely
 618                                 }
 619                                 else
 620                                 if ( GetDistanceToPane( pPane, mousePos ) > GetBarHeightInPane( pPane ) )
 621                                 {
 622                                         if ( !HitsPane( mpCurPane, mHintRect ) )
 623                                         {
 624                                                 UnstickFromPane( mpCurPane, mousePos );
 625
 626                                                 // FOR NOW:: disabled, would cause some mess
 627                                                 //mCanStick = FALSE; // prevents from sticking to this
 628                                                                                      // pane again, flag is reset when hint-rect
 629                                                                                      // leaves the pane completely
 630                                         }
 631                                 }
 632
 633                         }
 634                         else
 635                         {
 636                         }
 637                 }
 638         }
 639
 640         ShowHint( prevIsInClient );
 641
 642         wxCursor* pPrevCurs = mpCurCursor;
 643
 644         if ( mpCurPane )
 645     {
 646                 mpCurCursor = mpLayout->mpNormalCursor;
 647     }
 648         else
 649         {
 650         // if floating is off, and we are in the client
 651         // area, the cursor will be invalid, otherwise
 652         // it will be the normal cursor
 653
 654         if (mpLayout->mFloatingOn)
 655         {
 656                         mpCurCursor = mpLayout->mpNormalCursor;
 657         }
 658                 else
 659         {
 660                         mpCurCursor = mpLayout->mpNECursor;
 661         }
 662
 663         }
 664         if ( pPrevCurs != mpCurCursor )
 665                 mpLayout->GetParentFrame().SetCursor( *mpCurCursor );
 666 }
 667
 668 void cbBarDragPlugin::OnLButtonDown( cbLeftDownEvent& event )
 669 {
 670         if ( mBarDragStarted  )
 671         {
 672                 wxMessageBox(wxT("DblClick!"));
 673         }
 674
 675         event.Skip();
 676 }
 677
 678 void cbBarDragPlugin::OnLButtonUp( cbLeftUpEvent& event )
 679 {
 680         if ( mBarDragStarted  )
 681         {
 682                 if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE )
 683                 {
 684                         // erase current rectangle, and finsih on-screen drawing session
 685
 686                         cbDrawHintRectEvent evt( mPrevHintRect, mpCurPane == NULL, TRUE, TRUE );
 687
 688                         mpLayout->FirePluginEvent( evt );
 689
 690                         if ( mpCurPane != NULL )
 691                         {
 692                                 if ( mpSrcPane->mProps.mExactDockPredictionOn )
 693                                 {
 694                                         mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 695
 696                                         mpLayout->GetUpdatesManager().OnFinishChanges();
 697                                         mpLayout->GetUpdatesManager().UpdateNow();
 698                                 }
 699                                 else
 700                 {
 701                     if (mpDraggedBar->mState == wxCBAR_FLOATING)
 702                     {
 703                                 mpLayout->SetBarState( mpDraggedBar, wxCBAR_DOCKED_HORIZONTALLY, TRUE);
 704                     }
 705
 706                                         mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane );
 707                         }
 708                 }
 709              else
 710             {
 711                 if (mpDraggedBar->mState != wxCBAR_FLOATING)
 712                 {
 713                     mpLayout->SetBarState(mpDraggedBar, wxCBAR_FLOATING, true);
 714                 }
 715
 716                                 mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ] = mHintRect;
 717                                 mpLayout->ApplyBarProperties( mpDraggedBar );
 718             }
 719                 }
 720
 721                 mHintRect.width = -1;
 722
 723         // In Windows, at least, the frame needs to have a null cursor
 724         // else child windows (such as text windows) inherit the cursor
 725 #if 1
 726         mpLayout->GetParentFrame().SetCursor( wxNullCursor );
 727 #else
 728         mpLayout->GetParentFrame().SetCursor( *mpLayout->mpNormalCursor );
 729 #endif
 730
 731                 mpLayout->ReleaseEventsFromPane( event.mpPane );
 732                 mpLayout->ReleaseEventsFromPlugin( this );
 733
 734                 mBarDragStarted = FALSE;
 735
 736                 if ( mBarWasFloating && mpDraggedBar->mState != wxCBAR_FLOATING )
 737                 {
 738                         // save bar's floating position before it was docked
 739
 740                         mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ] = mFloatedBarBounds;
 741                 }
 742         }
 743         else
 744                 event.Skip(); // pass event to the next plugin
 745 }
 746
 747 void cbBarDragPlugin::OnLDblClick( cbLeftDClickEvent& event )
 748 {
 749         int avoidCompilerWarning = 1;
 750         if ( avoidCompilerWarning )
 751         {
 752                 cbBarInfo* pHittedBar;
 753                 cbRowInfo* pRow;
 754
 755                 if ( event.mpPane->HitTestPaneItems( event.mPos,          // in pane's coordiantes
 756                                                                                      &pRow,
 757                                                                                          &pHittedBar ) == CB_BAR_CONTENT_HITTED
 758                    )
 759                         {
 760                                 mpLayout->SetBarState( pHittedBar, wxCBAR_FLOATING, TRUE );
 761
 762                                 mpLayout->RepositionFloatedBar( pHittedBar );
 763
 764                                 return; // event is "eaten" by this plugin
 765                         }
 766
 767                 mBarDragStarted = FALSE;
 768
 769                 event.Skip();
 770         }
 771
 772         //wxMessageBox("Hi, dblclick arrived!");
 773 }
 774
 775 void cbBarDragPlugin::OnStartBarDragging( cbStartBarDraggingEvent& event )
 776 {
 777         mpDraggedBar = event.mpBar;
 778         mpSrcPane    = event.mpPane;
 779
 780         mpLayout->CaptureEventsForPane( event.mpPane );
 781         mpLayout->CaptureEventsForPlugin( this );
 782
 783         mpLayout->GetParentFrame().SetCursor( *mpLayout->mpNormalCursor );
 784
 785         mBarDragStarted = TRUE;
 786
 787         wxRect inParent = mpDraggedBar->mBounds;
 788
 789         mBarWasFloating = mpDraggedBar->mState == wxCBAR_FLOATING;
 790
 791         if ( mBarWasFloating )
 792         {
 793                 inParent = mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ];
 794                 mFloatedBarBounds = inParent;
 795         }
 796         else
 797                 event.mpPane->PaneToFrame( &inParent );
 798
 799         mHintRect.x = POS_UNDEFINED;
 800
 801         mHintRect.width  = inParent.width;
 802         mHintRect.height = inParent.height;
 803
 804         mMouseInRectX = event.mPos.x - inParent.x;
 805         mMouseInRectY = event.mPos.y - inParent.y;
 806
 807         mpSrcPane = event.mpPane;
 808
 809         if ( mpDraggedBar->mState == wxCBAR_FLOATING )
 810
 811                 mpCurPane = NULL;
 812         else
 813                 mpCurPane = event.mpPane;
 814
 815         mPrevHintRect.x = POS_UNDEFINED;
 816
 817         mCanStick = FALSE; // we're not stuck into any pane now -
 818                                            // there's nowhere to "stick-twice"
 819
 820         mBarWidthInSrcPane = mpDraggedBar->mDimInfo.mSizes[ mpDraggedBar->mState ].x;
 821
 822         if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE &&
 823                  mpSrcPane->mProps.mExactDockPredictionOn  )
 824
 825                 mpLayout->GetUpdatesManager().OnStartChanges(); // capture initial state of layout
 826
 827         // simulate the first mouse movement
 828
 829         int x = event.mPos.x, y = event.mPos.y;
 830
 831         mpSrcPane->FrameToPane( &x, &y );
 832
 833         cbMotionEvent motionEvt( wxPoint(x,y), event.mpPane );
 834
 835
 836         this->OnMouseMove( motionEvt );
 837
 838         return; // event is "eaten" by this plugin
 839 }
 840
 841 /*** on-screen hint-tracking related methods ***/
 842
 843 void cbBarDragPlugin::OnDrawHintRect( cbDrawHintRectEvent& event )
 844 {
 845         if ( !mpScrDc ) StartTracking();
 846
 847         DoDrawHintRect( event.mRect, event.mIsInClient );
 848
 849         if ( event.mLastTime )
 850
 851                 FinishTracking();
 852 }
 853
 854 #define _IMG_A  0xAA    // Note: modified from _A to _IMG_A, _A was already defined (cygwin)
 855 #define _IMG_B  0x00    // Note: modified from _B to _IMG_A, _B was already defined (cygwin)
 856 #define _IMG_C  0x55    // Note: modified from _C to _IMG_C, for consistency reasons.
 857 #define _IMG_D  0x00    // Note: modified from _D to _IMG_D, for consistency reasons.
 858
 859 // FOR NOW:: static
 860
 861 static const unsigned char _gCheckerImg[16] = { _IMG_A,_IMG_B,_IMG_C,_IMG_D,
 862                                                                                             _IMG_A,_IMG_B,_IMG_C,_IMG_D,
 863                                                                                             _IMG_A,_IMG_B,_IMG_C,_IMG_D,
 864                                                                                             _IMG_A,_IMG_B,_IMG_C,_IMG_D
 865                                                                                           };
 866
 867 void cbBarDragPlugin::StartTracking()
 868 {
 869         mpScrDc = new wxScreenDC;
 870
 871         wxScreenDC::StartDrawingOnTop(&mpLayout->GetParentFrame());
 872 }
 873
 874 void cbBarDragPlugin::DoDrawHintRect( wxRect& rect, bool isInClientRect)
 875 {
 876         wxRect scrRect;
 877
 878         RectToScr( rect, scrRect );
 879
 880         int prevLF = mpScrDc->GetLogicalFunction();
 881
 882         mpScrDc->SetLogicalFunction( wxINVERT );
 883
 884         if ( isInClientRect )
 885         {
 886                 // BUG BUG BUG (wx):: somehow stippled brush works only
 887                 //                                        when the bitmap created on stack, not
 888                 //                                        as a member of the class
 889
 890                 wxBitmap checker( (const char*)_gCheckerImg, 8,8 );
 891
 892                 wxBrush checkerBrush( checker );
 893
 894                 mpScrDc->SetPen( mpLayout->mNullPen );
 895                 mpScrDc->SetBrush( checkerBrush );
 896
 897                 int half = mInClientHintBorder / 2;
 898
 899                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y - half,
 900                                             scrRect.width + 2*half, mInClientHintBorder );
 901
 902                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + scrRect.height - half,
 903                                             scrRect.width + 2*half, mInClientHintBorder );
 904
 905                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + half - 1,
 906                                             mInClientHintBorder, scrRect.height - 2*half + 2);
 907
 908                 mpScrDc->DrawRectangle( scrRect.x + scrRect.width - half,
 909                                                                 scrRect.y + half - 1,
 910                                             mInClientHintBorder, scrRect.height - 2*half + 2);
 911
 912                 mpScrDc->SetBrush( wxNullBrush );
 913         }
 914         else
 915         {
 916                 mpScrDc->SetPen( mpLayout->mBlackPen );
 917
 918                 mpScrDc->DrawLine( scrRect.x, scrRect.y,
 919                                                    scrRect.x + scrRect.width, scrRect.y );
 920
 921                 mpScrDc->DrawLine( scrRect.x, scrRect.y + 1,
 922                                                    scrRect.x, scrRect.y + scrRect.height );
 923
 924                 mpScrDc->DrawLine( scrRect.x+1, scrRect.y + scrRect.height,
 925                                                    scrRect.x + scrRect.width, scrRect.y + scrRect.height );
 926
 927                 mpScrDc->DrawLine( scrRect.x + scrRect.width , scrRect.y,
 928                                                    scrRect.x + scrRect.width, scrRect.y + scrRect.height + 1);
 929         }
 930
 931         mpScrDc->SetLogicalFunction( prevLF );
 932 }
 933
 934 void cbBarDragPlugin::DrawHintRect ( wxRect& rect, bool isInClientRect)
 935 {
 936         DoDrawHintRect( rect, isInClientRect );
 937 }
 938
 939 void cbBarDragPlugin::EraseHintRect( wxRect& rect, bool isInClientRect)
 940 {
 941         DoDrawHintRect( rect, isInClientRect );
 942 }
 943
 944 void cbBarDragPlugin::FinishTracking()
 945 {
 946         wxScreenDC::EndDrawingOnTop();
 947
 948         delete mpScrDc;
 949
 950         mpScrDc = NULL;
 951 }
 952
 953 void cbBarDragPlugin::RectToScr( wxRect& frameRect, wxRect& scrRect )
 954 {
 955         scrRect = frameRect;
 956
 957         int x = frameRect.x, y = frameRect.y;
 958
 959         mpLayout->GetParentFrame().ClientToScreen( &x, &y );
 960
 961         scrRect.x = x;
 962         scrRect.y = y;
 963 }
 964