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