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         if ( mpDraggedBar->mState != wxCBAR_FLOATING && !mpCurPane )
 460         {
 461                 mpLayout->SetBarState( mpDraggedBar, wxCBAR_FLOATING, TRUE );
 462         }
 463         else
 464         if ( mpDraggedBar->mState == wxCBAR_FLOATING && mpCurPane )
 465         {
 466                 mpLayout->SetBarState( mpDraggedBar, wxCBAR_DOCKED_HORIZONTALLY, FALSE );
 467
 468                 wasDocked = TRUE;
 469         }
 470
 471         if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE )
 472         {
 473                 // do heavy calculations first
 474
 475                 wxRect actualRect = mHintRect; // will be adjusted depending on drag-settings
 476
 477                 if ( mpSrcPane->mProps.mExactDockPredictionOn && mpCurPane )
 478                 {
 479                         bool success = mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 480
 481                         wxASSERT( success ); // DBG::
 482
 483                         actualRect = mpDraggedBar->mBounds;
 484
 485                         mpCurPane->PaneToFrame( &actualRect );
 486                 }
 487                 else
 488                         CalcOnScreenDims( actualRect );
 489
 490                 // release previous hint
 491
 492                 if ( mPrevHintRect.x != POS_UNDEFINED )
 493                 {
 494                         // erase previous rectangle
 495
 496                         cbDrawHintRectEvent evt( mPrevHintRect, prevWasInClient, TRUE, FALSE );
 497
 498                         mpLayout->FirePluginEvent( evt );
 499                 }
 500
 501                 // draw new hint
 502
 503                 cbDrawHintRectEvent evt( actualRect, mpCurPane == NULL, FALSE, FALSE );
 504
 505                 mpLayout->FirePluginEvent( evt );
 506
 507                 mPrevHintRect = actualRect;
 508         }
 509         else
 510         {
 511                 // otherwise, if real-time updates option is ON
 512
 513                 if ( mpCurPane )
 514                 {
 515                         mpLayout->GetUpdatesManager().OnStartChanges();
 516
 517                         if ( wasDocked )
 518
 519                                 mpDraggedBar->mUMgrData.SetDirty( TRUE );
 520
 521                         bool success = mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 522
 523                         wxASSERT( success ); // DBG ::
 524
 525                         mpLayout->GetUpdatesManager().OnFinishChanges();
 526                         mpLayout->GetUpdatesManager().UpdateNow();
 527                 }
 528                 else
 529                 {
 530                         if ( mpLayout->mFloatingOn )
 531                         {
 532                                 // move the top-most floated bar around as user drags the hint
 533
 534                                 mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ] = mHintRect;
 535
 536                                 mpLayout->ApplyBarProperties( mpDraggedBar );
 537                         }
 538                 }
 539         }
 540 }
 541
 542 /*** event handlers ***/
 543
 544 void cbBarDragPlugin::OnMouseMove( cbMotionEvent& event )
 545 {
 546         // calculate postion in frame's coordiantes
 547
 548         if ( !mBarDragStarted )
 549         {
 550                 event.Skip(); // pass event to the next plugin
 551                 return;
 552         }
 553
 554         wxPoint mousePos = event.mPos;
 555
 556         event.mpPane->PaneToFrame( &mousePos.x, &mousePos.y );
 557
 558         bool   prevIsInClient = ( mpCurPane == 0 );
 559
 560         AdjustHintRect( mousePos );
 561
 562         // if the hint-rect is not "tempted" to any pane yet
 563
 564         if ( mpCurPane == NULL )
 565         {
 566                 cbDockPane* pPane = HitTestPanes( mHintRect );
 567
 568                 if ( !pPane )
 569
 570                         // enable sticking again, if we've left the pane completely
 571                         mCanStick = TRUE;
 572
 573                 if ( mCanStick && pPane &&
 574                          GetDistanceToPane( pPane, mousePos ) < GetBarHeightInPane( pPane ) )
 575
 576                         StickToPane( pPane, mousePos );
 577                 else
 578                         if ( pPane && HitTestPanes( mousePos ) == pPane && 0 ) // FOR NOW:: disabled
 579
 580                                 StickToPane( pPane, mousePos );
 581         }
 582         else
 583         {
 584                 // otherwise, when rect is now sticked to some of the panes
 585                 // check if it should still remain in this pane
 586
 587                 mCanStick = TRUE;
 588
 589                 bool mouseInOther = IsInOtherPane( mousePos );
 590
 591                 if ( mouseInOther )
 592                 {
 593                                 cbDockPane* pPane = HitTestPanes( mousePos );
 594
 595                                 StickToPane( pPane, mousePos );
 596                 }
 597                 else
 598                 {
 599                         if ( IsInClientArea( mousePos ) )
 600                         {
 601                                 cbDockPane* pPane = HitTestPanes( mHintRect );
 602
 603                                 if ( pPane &&
 604                                          pPane != mpCurPane &&
 605                                          GetDistanceToPane( pPane, mousePos ) < GetBarHeightInPane( pPane ) )
 606
 607                                                 StickToPane( pPane, mousePos );
 608                                 else
 609                                 if ( !pPane )
 610                                 {
 611                                         UnstickFromPane( mpCurPane, mousePos );
 612
 613                                         // FOR NOW:: disabled, would cause some mess
 614                                         //mCanStick = FALSE; // prevents from sticking to this
 615                                                                          // pane again, flag is reset when hint-rect
 616                                                                          // leaves the pane completely
 617                                 }
 618                                 else
 619                                 if ( GetDistanceToPane( pPane, mousePos ) > GetBarHeightInPane( pPane ) )
 620                                 {
 621                                         if ( !HitsPane( mpCurPane, mHintRect ) )
 622                                         {
 623                                                 UnstickFromPane( mpCurPane, mousePos );
 624
 625                                                 // FOR NOW:: disabled, would cause some mess
 626                                                 //mCanStick = FALSE; // prevents from sticking to this
 627                                                                                      // pane again, flag is reset when hint-rect
 628                                                                                      // leaves the pane completely
 629                                         }
 630                                 }
 631
 632                         }
 633                         else
 634                         {
 635                         }
 636                 }
 637         }
 638
 639         ShowHint( prevIsInClient );
 640
 641         wxCursor* pPrevCurs = mpCurCursor;
 642
 643         if ( mpCurPane )
 644
 645                 mpCurCursor = mpLayout->mpDragCursor;
 646         else
 647         {
 648                 if ( mpLayout->mFloatingOn && mpSrcPane->mProps.mRealTimeUpdatesOn )
 649
 650                         mpCurCursor = mpLayout->mpDragCursor;
 651                 else
 652                         mpCurCursor = mpLayout->mpNECursor;
 653         }
 654
 655         if ( pPrevCurs != mpCurCursor )
 656
 657                 mpLayout->GetParentFrame().SetCursor( *mpCurCursor );
 658 }
 659
 660 void cbBarDragPlugin::OnLButtonDown( cbLeftDownEvent& event )
 661 {
 662         if ( mBarDragStarted  )
 663         {
 664                 wxMessageBox("DblClick!");
 665         }
 666
 667         event.Skip();
 668 }
 669
 670 void cbBarDragPlugin::OnLButtonUp( cbLeftUpEvent& event )
 671 {
 672         if ( mBarDragStarted  )
 673         {
 674                 if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE )
 675                 {
 676                         // erase current rectangle, and finsih on-screen drawing session
 677
 678                         cbDrawHintRectEvent evt( mPrevHintRect, mpCurPane == NULL, TRUE, TRUE );
 679
 680                         mpLayout->FirePluginEvent( evt );
 681
 682                         if ( mpCurPane != NULL )
 683                         {
 684                                 if ( mpSrcPane->mProps.mExactDockPredictionOn )
 685                                 {
 686                                         mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 687
 688                                         mpLayout->GetUpdatesManager().OnFinishChanges();
 689                                         mpLayout->GetUpdatesManager().UpdateNow();
 690                                 }
 691                                 else
 692                                         mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane );
 693                         }
 694                 }
 695
 696                 mHintRect.width = -1;
 697
 698                 mpLayout->GetParentFrame().SetCursor( *mpLayout->mpNormalCursor );
 699
 700                 mpLayout->ReleaseEventsFromPane( event.mpPane );
 701                 mpLayout->ReleaseEventsFromPlugin( this );
 702
 703                 mBarDragStarted = FALSE;
 704
 705                 if ( mBarWasFloating && mpDraggedBar->mState != wxCBAR_FLOATING )
 706                 {
 707                         // save bar's floating position before it was docked
 708
 709                         mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ] = mFloatedBarBounds;
 710                 }
 711         }
 712         else
 713                 event.Skip(); // pass event to the next plugin
 714 }
 715
 716 void cbBarDragPlugin::OnLDblClick( cbLeftDClickEvent& event )
 717 {
 718         int avoidCompilerWarning = 1;
 719         if ( avoidCompilerWarning )
 720         {
 721                 cbBarInfo* pHittedBar;
 722                 cbRowInfo* pRow;
 723
 724                 if ( event.mpPane->HitTestPaneItems( event.mPos,          // in pane's coordiantes
 725                                                                                      &pRow,
 726                                                                                          &pHittedBar ) == CB_BAR_CONTENT_HITTED
 727                    )
 728                         {
 729                                 mpLayout->SetBarState( pHittedBar, wxCBAR_FLOATING, TRUE );
 730
 731                                 mpLayout->RepositionFloatedBar( pHittedBar );
 732
 733                                 return; // event is "eaten" by this plugin
 734                         }
 735
 736                 mBarDragStarted = FALSE;
 737
 738                 event.Skip();
 739         }
 740
 741         //wxMessageBox("Hi, dblclick arrived!");
 742 }
 743
 744 void cbBarDragPlugin::OnStartBarDragging( cbStartBarDraggingEvent& event )
 745 {
 746         mpDraggedBar = event.mpBar;
 747         mpSrcPane    = event.mpPane;
 748
 749         mpLayout->CaptureEventsForPane( event.mpPane );
 750         mpLayout->CaptureEventsForPlugin( this );
 751
 752         mpLayout->GetParentFrame().SetCursor( *mpLayout->mpDragCursor );
 753
 754         mBarDragStarted = TRUE;
 755
 756         wxRect inParent = mpDraggedBar->mBounds;
 757
 758         mBarWasFloating = mpDraggedBar->mState == wxCBAR_FLOATING;
 759
 760         if ( mBarWasFloating )
 761         {
 762                 inParent = mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ];
 763                 mFloatedBarBounds = inParent;
 764         }
 765         else
 766                 event.mpPane->PaneToFrame( &inParent );
 767
 768         mHintRect.x = POS_UNDEFINED;
 769
 770         mHintRect.width  = inParent.width;
 771         mHintRect.height = inParent.height;
 772
 773         mMouseInRectX = event.mPos.x - inParent.x;
 774         mMouseInRectY = event.mPos.y - inParent.y;
 775
 776         mpSrcPane = event.mpPane;
 777
 778         if ( mpDraggedBar->mState == wxCBAR_FLOATING )
 779
 780                 mpCurPane = NULL;
 781         else
 782                 mpCurPane = event.mpPane;
 783
 784         mPrevHintRect.x = POS_UNDEFINED;
 785
 786         mCanStick = FALSE; // we're not stuck into any pane now -
 787                                            // there's nowhere to "stick-twice"
 788
 789         mBarWidthInSrcPane = mpDraggedBar->mDimInfo.mSizes[ mpDraggedBar->mState ].x;
 790
 791         if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE &&
 792                  mpSrcPane->mProps.mExactDockPredictionOn  )
 793
 794                 mpLayout->GetUpdatesManager().OnStartChanges(); // capture initial state of layout
 795
 796         // simulate the first mouse movement
 797
 798         int x = event.mPos.x, y = event.mPos.y;
 799
 800         mpSrcPane->FrameToPane( &x, &y );
 801
 802         cbMotionEvent motionEvt( wxPoint(x,y), event.mpPane );
 803
 804
 805         this->OnMouseMove( motionEvt );
 806
 807         return; // event is "eaten" by this plugin
 808 }
 809
 810 /*** on-screen hint-tracking related methods ***/
 811
 812 void cbBarDragPlugin::OnDrawHintRect( cbDrawHintRectEvent& event )
 813 {
 814         if ( !mpScrDc ) StartTracking();
 815
 816         DoDrawHintRect( event.mRect, event.mIsInClient );
 817
 818         if ( event.mLastTime )
 819
 820                 FinishTracking();
 821 }
 822
 823 #define _IMG_A  0xAA    // Note: modified from _A to _IMG_A, _A was already defined (cygwin)
 824 #define _IMG_B  0x00    // Note: modified from _B to _IMG_A, _B was already defined (cygwin)
 825 #define _IMG_C  0x55    // Note: modified from _C to _IMG_C, for consistency reasons.
 826 #define _IMG_D  0x00    // Note: modified from _D to _IMG_D, for consistency reasons.
 827
 828 // FOR NOW:: static
 829
 830 static const unsigned char _gCheckerImg[16] = { _IMG_A,_IMG_B,_IMG_C,_IMG_D,
 831                                                                                             _IMG_A,_IMG_B,_IMG_C,_IMG_D,
 832                                                                                             _IMG_A,_IMG_B,_IMG_C,_IMG_D,
 833                                                                                             _IMG_A,_IMG_B,_IMG_C,_IMG_D
 834                                                                                           };
 835
 836 void cbBarDragPlugin::StartTracking()
 837 {
 838         mpScrDc = new wxScreenDC;
 839
 840         wxScreenDC::StartDrawingOnTop(&mpLayout->GetParentFrame());
 841 }
 842
 843 void cbBarDragPlugin::DoDrawHintRect( wxRect& rect, bool isInClientRect)
 844 {
 845         wxRect scrRect;
 846
 847         RectToScr( rect, scrRect );
 848
 849         int prevLF = mpScrDc->GetLogicalFunction();
 850
 851         mpScrDc->SetLogicalFunction( wxINVERT );
 852
 853         if ( isInClientRect )
 854         {
 855                 // BUG BUG BUG (wx):: somehow stippled brush works only
 856                 //                                        when the bitmap created on stack, not
 857                 //                                        as a member of the class
 858
 859                 wxBitmap checker( (const char*)_gCheckerImg, 8,8 );
 860
 861                 wxBrush checkerBrush( checker );
 862
 863                 mpScrDc->SetPen( mpLayout->mNullPen );
 864                 mpScrDc->SetBrush( checkerBrush );
 865
 866                 int half = mInClientHintBorder / 2;
 867
 868                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y - half,
 869                                             scrRect.width + 2*half, mInClientHintBorder );
 870
 871                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + scrRect.height - half,
 872                                             scrRect.width + 2*half, mInClientHintBorder );
 873
 874                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + half - 1,
 875                                             mInClientHintBorder, scrRect.height - 2*half + 2);
 876
 877                 mpScrDc->DrawRectangle( scrRect.x + scrRect.width - half,
 878                                                                 scrRect.y + half - 1,
 879                                             mInClientHintBorder, scrRect.height - 2*half + 2);
 880
 881                 mpScrDc->SetBrush( wxNullBrush );
 882         }
 883         else
 884         {
 885                 mpScrDc->SetPen( mpLayout->mBlackPen );
 886
 887                 mpScrDc->DrawLine( scrRect.x, scrRect.y,
 888                                                    scrRect.x + scrRect.width, scrRect.y );
 889
 890                 mpScrDc->DrawLine( scrRect.x, scrRect.y + 1,
 891                                                    scrRect.x, scrRect.y + scrRect.height );
 892
 893                 mpScrDc->DrawLine( scrRect.x+1, scrRect.y + scrRect.height,
 894                                                    scrRect.x + scrRect.width, scrRect.y + scrRect.height );
 895
 896                 mpScrDc->DrawLine( scrRect.x + scrRect.width , scrRect.y,
 897                                                    scrRect.x + scrRect.width, scrRect.y + scrRect.height + 1);
 898         }
 899
 900         mpScrDc->SetLogicalFunction( prevLF );
 901 }
 902
 903 void cbBarDragPlugin::DrawHintRect ( wxRect& rect, bool isInClientRect)
 904 {
 905         DoDrawHintRect( rect, isInClientRect );
 906 }
 907
 908 void cbBarDragPlugin::EraseHintRect( wxRect& rect, bool isInClientRect)
 909 {
 910         DoDrawHintRect( rect, isInClientRect );
 911 }
 912
 913 void cbBarDragPlugin::FinishTracking()
 914 {
 915         wxScreenDC::EndDrawingOnTop();
 916
 917         delete mpScrDc;
 918
 919         mpScrDc = NULL;
 920 }
 921
 922 void cbBarDragPlugin::RectToScr( wxRect& frameRect, wxRect& scrRect )
 923 {
 924         scrRect = frameRect;
 925
 926         int x = frameRect.x, y = frameRect.y;
 927
 928         mpLayout->GetParentFrame().ClientToScreen( &x, &y );
 929
 930         scrRect.x = x;
 931         scrRect.y = y;
 932 }
 933