contrib/src/fl/bardragpl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        No names yet.
   3 // Purpose:     Contrib. demo
   4 // Author:      Aleksandras Gluchovas
   5 // Modified by:
   6 // Created:     23/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Aleksandras Gluchovas
   9 // Licence:     wxWindows license
  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 mouse pointer doesn't overrun (leave) the hint-rectangle
 297         //        when dimensions it's 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
 348         int newWidth  = mpDraggedBar->mDimInfo.mSizes[wxCBAR_FLOATING].x;
 349         int newHeight = mpDraggedBar->mDimInfo.mSizes[wxCBAR_FLOATING].y;
 350
 351         wxRect& flBounds = mpDraggedBar->mDimInfo.mBounds[wxCBAR_FLOATING];
 352
 353         if ( flBounds.width != -1 )
 354         {
 355                 newWidth  = flBounds.width;
 356                 newHeight = flBounds.height;
 357         }
 358
 359         mHintRect.width  = newWidth;
 360         mHintRect.height = newHeight;
 361
 362         wxRect& bounds = pPane->mBoundsInParent;
 363
 364         // TRUE, if hint leaves the pane through it's lower edge
 365
 366         bool fromLowerEdge = ( pPane->IsHorizontal() )
 367                                                  ? mousePos.y > bounds.y
 368                                                  : mousePos.x > bounds.x;
 369
 370         // NOTE:: ...all the below min/max things - see comments about it in StickToPane(..)
 371
 372         if ( pPane->IsHorizontal() && fromLowerEdge )
 373         {
 374 //              bool fromLowerEdge = mousePos.y > bounds.y;
 375
 376                 mHintRect.y = wxMax( bounds.y + bounds.height + 1, mousePos.y - newHeight );
 377
 378                 check_upper_overrun( mHintRect.y, newHeight, mousePos.y );
 379
 380                 // this is how MFC's hint behaves:
 381
 382                 if ( mMouseInRectX > newWidth )
 383
 384                         mHintRect.x = mousePos.x - ( newWidth / 2 );
 385         }
 386         else
 387         if ( pPane->IsHorizontal() && !fromLowerEdge )
 388         {
 389                 mHintRect.y = wxMin( bounds.y - newHeight - 1, mousePos.y );
 390
 391                 // -/-
 392
 393                 if ( mMouseInRectX > newWidth )
 394
 395                         mHintRect.x = mousePos.x - ( newWidth / 2 );
 396
 397                 check_lower_overrun( mHintRect.y, newHeight, mousePos.y );
 398         }
 399         else
 400         if ( !pPane->IsHorizontal() && fromLowerEdge )
 401         {
 402                 mHintRect.x = wxMax( bounds.x + bounds.width, mousePos.x - newWidth );
 403
 404                 // -/-
 405
 406                 if ( mMouseInRectY > newHeight )
 407
 408                         mHintRect.y = mousePos.y - ( newHeight / 2 );
 409
 410                 check_upper_overrun( mHintRect.x, newWidth, mousePos.x );
 411         }
 412         else
 413         if ( !pPane->IsHorizontal() && !fromLowerEdge )
 414         {
 415                 mHintRect.x = wxMin( bounds.x - newWidth - 1, mousePos.x );
 416
 417                 // -/-
 418
 419                 if ( mMouseInRectY > newHeight )
 420
 421                         mHintRect.y = mousePos.y - ( newHeight / 2 );
 422
 423                 check_lower_overrun( mHintRect.x, newWidth, mousePos.x );
 424         }
 425
 426         mMouseInRectX = mousePos.x - mHintRect.x;
 427         mMouseInRectY = mousePos.y - mHintRect.y;
 428
 429         mpCurPane = NULL;
 430 }
 431
 432 int cbBarDragPlugin::GetBarWidthInPane( cbDockPane* pPane )
 433 {
 434         if ( pPane == mpSrcPane )
 435
 436                 return mBarWidthInSrcPane;
 437
 438         // this is how MFC's bars behave:
 439
 440         if ( pPane->IsHorizontal() )
 441
 442                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_HORIZONTALLY].x;
 443         else
 444                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_VERTICALLY  ].x;
 445 }
 446
 447 int cbBarDragPlugin::GetBarHeightInPane( cbDockPane* pPane )
 448 {
 449         if ( pPane->IsHorizontal() )
 450
 451                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_HORIZONTALLY].y;
 452         else
 453                 return mpDraggedBar->mDimInfo.mSizes[wxCBAR_DOCKED_VERTICALLY  ].y;
 454 }
 455
 456 void cbBarDragPlugin::ShowHint( bool prevWasInClient )
 457 {
 458         bool wasDocked = FALSE;
 459
 460         if ( mpDraggedBar->mState != wxCBAR_FLOATING && !mpCurPane )
 461         {
 462                 mpLayout->SetBarState( mpDraggedBar, wxCBAR_FLOATING, TRUE );
 463         }
 464         else
 465         if ( mpDraggedBar->mState == wxCBAR_FLOATING && mpCurPane )
 466         {
 467                 mpLayout->SetBarState( mpDraggedBar, wxCBAR_DOCKED_HORIZONTALLY, FALSE );
 468
 469                 wasDocked = TRUE;
 470         }
 471
 472         if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE )
 473         {
 474                 // do hevy calculations first
 475
 476                 wxRect actualRect = mHintRect; // will be adjusted depending on drag-settings
 477
 478                 if ( mpSrcPane->mProps.mExactDockPredictionOn && mpCurPane )
 479                 {
 480                         bool success = mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 481
 482                         wxASSERT( success ); // DBG::
 483
 484                         actualRect = mpDraggedBar->mBounds;
 485
 486                         mpCurPane->PaneToFrame( &actualRect );
 487                 }
 488                 else
 489                         CalcOnScreenDims( actualRect );
 490
 491                 // release previous hint
 492
 493                 if ( mPrevHintRect.x != POS_UNDEFINED )
 494                 {
 495                         // erase previous rectangle
 496
 497                         cbDrawHintRectEvent evt( mPrevHintRect, prevWasInClient, TRUE, FALSE );
 498
 499                         mpLayout->FirePluginEvent( evt );
 500                 }
 501
 502                 // draw new hint
 503
 504                 cbDrawHintRectEvent evt( actualRect, mpCurPane == NULL, FALSE, FALSE );
 505
 506                 mpLayout->FirePluginEvent( evt );
 507
 508                 mPrevHintRect = actualRect;
 509         }
 510         else
 511         {
 512                 // otherwise, if real-time updates option is ON
 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->mpDragCursor;
 647         else
 648         {
 649                 if ( mpLayout->mFloatingOn && mpSrcPane->mProps.mRealTimeUpdatesOn )
 650
 651                         mpCurCursor = mpLayout->mpDragCursor;
 652                 else
 653                         mpCurCursor = mpLayout->mpNECursor;
 654         }
 655
 656         if ( pPrevCurs != mpCurCursor )
 657
 658                 mpLayout->GetParentFrame().SetCursor( *mpCurCursor );
 659 }
 660
 661 void cbBarDragPlugin::OnLButtonDown( cbLeftDownEvent& event )
 662 {
 663         if ( mBarDragStarted  )
 664         {
 665                 wxMessageBox("DblClick!");
 666         }
 667
 668         event.Skip();
 669 }
 670
 671 void cbBarDragPlugin::OnLButtonUp( cbLeftUpEvent& event )
 672 {
 673         if ( mBarDragStarted  )
 674         {
 675                 if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE )
 676                 {
 677                         // erase current rectangle, and finsih on-screen drawing session
 678
 679                         cbDrawHintRectEvent evt( mPrevHintRect, mpCurPane == NULL, TRUE, TRUE );
 680
 681                         mpLayout->FirePluginEvent( evt );
 682
 683                         if ( mpCurPane != NULL )
 684                         {
 685                                 if ( mpSrcPane->mProps.mExactDockPredictionOn )
 686                                 {
 687                                         mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane, FALSE );
 688
 689                                         mpLayout->GetUpdatesManager().OnFinishChanges();
 690                                         mpLayout->GetUpdatesManager().UpdateNow();
 691                                 }
 692                                 else
 693                                         mpLayout->RedockBar( mpDraggedBar, mHintRect, mpCurPane );
 694                         }
 695                 }
 696
 697                 mHintRect.width = -1;
 698
 699                 mpLayout->GetParentFrame().SetCursor( *mpLayout->mpNormalCursor );
 700
 701                 mpLayout->ReleaseEventsFromPane( event.mpPane );
 702                 mpLayout->ReleaseEventsFromPlugin( this );
 703
 704                 mBarDragStarted = FALSE;
 705
 706                 if ( mBarWasFloating && mpDraggedBar->mState != wxCBAR_FLOATING )
 707                 {
 708                         // save bar's floating position before it was docked
 709
 710                         mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ] = mFloatedBarBounds;
 711                 }
 712         }
 713         else
 714                 event.Skip(); // pass event to the next plugin
 715 }
 716
 717 void cbBarDragPlugin::OnLDblClick( cbLeftDClickEvent& event )
 718 {
 719         int avoidCompilerWarning = 1;
 720         if ( avoidCompilerWarning )
 721         {
 722                 cbBarInfo* pHittedBar;
 723                 cbRowInfo* pRow;
 724
 725                 if ( event.mpPane->HitTestPaneItems( event.mPos,          // in pane's coordiantes
 726                                                                                      &pRow,
 727                                                                                          &pHittedBar ) == CB_BAR_CONTENT_HITTED
 728                    )
 729                         {
 730                                 mpLayout->SetBarState( pHittedBar, wxCBAR_FLOATING, TRUE );
 731
 732                                 mpLayout->RepositionFloatedBar( pHittedBar );
 733
 734                                 return; // event is "eaten" by this plugin
 735                         }
 736
 737                 mBarDragStarted = FALSE;
 738
 739                 event.Skip();
 740         }
 741
 742         //wxMessageBox("Hi, dblclick arrived!");
 743 }
 744
 745 void cbBarDragPlugin::OnStartBarDragging( cbStartBarDraggingEvent& event )
 746 {
 747         mpDraggedBar = event.mpBar;
 748         mpSrcPane    = event.mpPane;
 749
 750         mpLayout->CaptureEventsForPane( event.mpPane );
 751         mpLayout->CaptureEventsForPlugin( this );
 752
 753         mpLayout->GetParentFrame().SetCursor( *mpLayout->mpDragCursor );
 754
 755         mBarDragStarted = TRUE;
 756
 757         wxRect inParent = mpDraggedBar->mBounds;
 758
 759         mBarWasFloating = mpDraggedBar->mState == wxCBAR_FLOATING;
 760
 761         if ( mBarWasFloating )
 762         {
 763                 inParent = mpDraggedBar->mDimInfo.mBounds[ wxCBAR_FLOATING ];
 764                 mFloatedBarBounds = inParent;
 765         }
 766         else
 767                 event.mpPane->PaneToFrame( &inParent );
 768
 769         mHintRect.x = POS_UNDEFINED;
 770
 771         mHintRect.width  = inParent.width;
 772         mHintRect.height = inParent.height;
 773
 774         mMouseInRectX = event.mPos.x - inParent.x;
 775         mMouseInRectY = event.mPos.y - inParent.y;
 776
 777         mpSrcPane = event.mpPane;
 778
 779         if ( mpDraggedBar->mState == wxCBAR_FLOATING )
 780
 781                 mpCurPane = NULL;
 782         else
 783                 mpCurPane = event.mpPane;
 784
 785         mPrevHintRect.x = POS_UNDEFINED;
 786
 787         mCanStick = FALSE; // we're not stuck into any pane now -
 788                                            // there's nowhere to "stick-twice"
 789
 790         mBarWidthInSrcPane = mpDraggedBar->mDimInfo.mSizes[ mpDraggedBar->mState ].x;
 791
 792         if ( mpSrcPane->mProps.mRealTimeUpdatesOn == FALSE &&
 793                  mpSrcPane->mProps.mExactDockPredictionOn  )
 794
 795                 mpLayout->GetUpdatesManager().OnStartChanges(); // capture initial state of layout
 796
 797         // simulate the first mouse movement
 798
 799         int x = event.mPos.x, y = event.mPos.y;
 800
 801         mpSrcPane->FrameToPane( &x, &y );
 802
 803         cbMotionEvent motionEvt( wxPoint(x,y), event.mpPane );
 804
 805
 806         this->OnMouseMove( motionEvt );
 807
 808         return; // event is "eaten" by this plugin
 809 }
 810
 811 /*** on-screen hint-tracking related methods ***/
 812
 813 void cbBarDragPlugin::OnDrawHintRect( cbDrawHintRectEvent& event )
 814 {
 815         if ( !mpScrDc ) StartTracking();
 816
 817         DoDrawHintRect( event.mRect, event.mIsInClient );
 818
 819         if ( event.mLastTime )
 820
 821                 FinishTracking();
 822 }
 823
 824 #define _IMG_A  0xAA    // Note: modified from _A to _IMG_A, _A was already defined (cygwin)
 825 #define _IMG_B  0x00    // Note: modified from _B to _IMG_A, _B was already defined (cygwin)
 826 #define _IMG_C  0x55    // Note: modified from _C to _IMG_C, for consistency reasons.
 827 #define _IMG_D  0x00    // Note: modified from _D to _IMG_D, for consistency reasons.
 828
 829 // FOR NOW:: static
 830
 831 static const unsigned char _gCheckerImg[16] = { _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                                                                                             _IMG_A,_IMG_B,_IMG_C,_IMG_D
 835                                                                                           };
 836
 837 void cbBarDragPlugin::StartTracking()
 838 {
 839         mpScrDc = new wxScreenDC;
 840
 841         wxScreenDC::StartDrawingOnTop(&mpLayout->GetParentFrame());
 842 }
 843
 844 void cbBarDragPlugin::DoDrawHintRect( wxRect& rect, bool isInClientRect)
 845 {
 846         wxRect scrRect;
 847
 848         RectToScr( rect, scrRect );
 849
 850         int prevLF = mpScrDc->GetLogicalFunction();
 851
 852         mpScrDc->SetLogicalFunction( wxINVERT );
 853
 854         if ( isInClientRect )
 855         {
 856                 // BUG BUG BUG (wx):: somehow stippled brush works only
 857                 //                                        when the bitmap created on stack, not
 858                 //                                        as a member of the class
 859
 860                 wxBitmap checker( (const char*)_gCheckerImg, 8,8 );
 861
 862                 wxBrush checkerBrush( checker );
 863
 864                 mpScrDc->SetPen( mpLayout->mNullPen );
 865                 mpScrDc->SetBrush( checkerBrush );
 866
 867                 int half = mInClientHintBorder / 2;
 868
 869                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y - half,
 870                                             scrRect.width + 2*half, mInClientHintBorder );
 871
 872                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + scrRect.height - half,
 873                                             scrRect.width + 2*half, mInClientHintBorder );
 874
 875                 mpScrDc->DrawRectangle( scrRect.x - half, scrRect.y + half - 1,
 876                                             mInClientHintBorder, scrRect.height - 2*half + 2);
 877
 878                 mpScrDc->DrawRectangle( scrRect.x + scrRect.width - half,
 879                                                                 scrRect.y + half - 1,
 880                                             mInClientHintBorder, scrRect.height - 2*half + 2);
 881
 882                 mpScrDc->SetBrush( wxNullBrush );
 883         }
 884         else
 885         {
 886                 mpScrDc->SetPen( mpLayout->mBlackPen );
 887
 888                 mpScrDc->DrawLine( scrRect.x, scrRect.y,
 889                                                    scrRect.x + scrRect.width, scrRect.y );
 890
 891                 mpScrDc->DrawLine( scrRect.x, scrRect.y + 1,
 892                                                    scrRect.x, scrRect.y + scrRect.height );
 893
 894                 mpScrDc->DrawLine( scrRect.x+1, scrRect.y + scrRect.height,
 895                                                    scrRect.x + scrRect.width, scrRect.y + scrRect.height );
 896
 897                 mpScrDc->DrawLine( scrRect.x + scrRect.width , scrRect.y,
 898                                                    scrRect.x + scrRect.width, scrRect.y + scrRect.height + 1);
 899         }
 900
 901         mpScrDc->SetLogicalFunction( prevLF );
 902 }
 903
 904 void cbBarDragPlugin::DrawHintRect ( wxRect& rect, bool isInClientRect)
 905 {
 906         DoDrawHintRect( rect, isInClientRect );
 907 }
 908
 909 void cbBarDragPlugin::EraseHintRect( wxRect& rect, bool isInClientRect)
 910 {
 911         DoDrawHintRect( rect, isInClientRect );
 912 }
 913
 914 void cbBarDragPlugin::FinishTracking()
 915 {
 916         wxScreenDC::EndDrawingOnTop();
 917
 918         delete mpScrDc;
 919
 920         mpScrDc = NULL;
 921 }
 922
 923 void cbBarDragPlugin::RectToScr( wxRect& frameRect, wxRect& scrRect )
 924 {
 925         scrRect = frameRect;
 926
 927         int x = frameRect.x, y = frameRect.y;
 928
 929         mpLayout->GetParentFrame().ClientToScreen( &x, &y );
 930
 931         scrRect.x = x;
 932         scrRect.y = y;
 933 }
 934