+ int former_x = m_x ;
+ int former_y = m_y ;
+ int former_w = m_width ;
+ int former_h = m_height ;
+
+ int actualWidth = width;
+ int actualHeight = height;
+ int actualX = x;
+ int actualY = y;
+
+ if ((m_minWidth != -1) && (actualWidth < m_minWidth))
+ actualWidth = m_minWidth;
+ if ((m_minHeight != -1) && (actualHeight < m_minHeight))
+ actualHeight = m_minHeight;
+ if ((m_maxWidth != -1) && (actualWidth > m_maxWidth))
+ actualWidth = m_maxWidth;
+ if ((m_maxHeight != -1) && (actualHeight > m_maxHeight))
+ actualHeight = m_maxHeight;
+
+ bool doMove = false ;
+ bool doResize = false ;
+
+ if ( actualX != former_x || actualY != former_y )
+ {
+ doMove = true ;
+ }
+ if ( actualWidth != former_w || actualHeight != former_h )
+ {
+ doResize = true ;
+ }
+
+ if ( doMove || doResize )
+ {
+ // erase former position
+
+ bool partialRepaint = false ;
+
+ if ( !HasFlag(wxFULL_REPAINT_ON_RESIZE) )
+ {
+ wxPoint oldPos( m_x , m_y ) ;
+ wxPoint newPos( actualX , actualY ) ;
+ MacWindowToRootWindow( &oldPos.x , &oldPos.y ) ;
+ MacWindowToRootWindow( &newPos.x , &newPos.y ) ;
+ if ( oldPos == newPos )
+ {
+ partialRepaint = true ;
+ RgnHandle oldRgn,newRgn,diffRgn ;
+ oldRgn = NewRgn() ;
+ newRgn = NewRgn() ;
+ diffRgn = NewRgn() ;
+
+ // invalidate the differences between the old and the new area
+
+ SetRectRgn(oldRgn , oldPos.x , oldPos.y , oldPos.x + m_width , oldPos.y + m_height ) ;
+ SetRectRgn(newRgn , newPos.x , newPos.y , newPos.x + actualWidth , newPos.y + actualHeight ) ;
+ DiffRgn( newRgn , oldRgn , diffRgn ) ;
+ InvalWindowRgn( (WindowRef) MacGetRootWindow() , diffRgn ) ;
+ DiffRgn( oldRgn , newRgn , diffRgn ) ;
+ InvalWindowRgn( (WindowRef) MacGetRootWindow() , diffRgn ) ;
+
+ // we also must invalidate the border areas, someone might optimize this one day to invalidate only the really
+ // changing pixels...
+
+ if ( MacGetLeftBorderSize() != 0 || MacGetRightBorderSize() != 0 ||
+ MacGetTopBorderSize() != 0 || MacGetBottomBorderSize() != 0 )
+ {
+ RgnHandle innerOldRgn, innerNewRgn ;
+ innerOldRgn = NewRgn() ;
+ innerNewRgn = NewRgn() ;
+
+ SetRectRgn(innerOldRgn , oldPos.x + MacGetLeftBorderSize() , oldPos.y + MacGetTopBorderSize() ,
+ oldPos.x + m_width - MacGetRightBorderSize() , oldPos.y + m_height - MacGetBottomBorderSize() ) ;
+ DiffRgn( oldRgn , innerOldRgn , diffRgn ) ;
+ InvalWindowRgn( (WindowRef) MacGetRootWindow() , diffRgn ) ;
+
+ SetRectRgn(innerNewRgn , newPos.x + MacGetLeftBorderSize() , newPos.y + MacGetTopBorderSize() ,
+ newPos.x + actualWidth - MacGetRightBorderSize() , newPos.y + actualHeight - MacGetBottomBorderSize() ) ;
+ DiffRgn( newRgn , innerNewRgn , diffRgn ) ;
+ InvalWindowRgn( (WindowRef) MacGetRootWindow() , diffRgn ) ;
+
+ DisposeRgn( innerOldRgn ) ;
+ DisposeRgn( innerNewRgn ) ;
+ }
+
+ DisposeRgn(oldRgn) ;
+ DisposeRgn(newRgn) ;
+ DisposeRgn(diffRgn) ;
+ }
+ }
+
+ if ( !partialRepaint )
+ Refresh() ;
+
+ m_x = actualX ;
+ m_y = actualY ;
+ m_width = actualWidth ;
+ m_height = actualHeight ;
+
+ // update any low-level frame-relative positions
+
+ MacUpdateDimensions() ;
+ // erase new position
+
+ if ( !partialRepaint )
+ Refresh() ;
+ if ( doMove )
+ wxWindowMac::MacSuperChangedPosition() ; // like this only children will be notified
+
+ MacRepositionScrollBars() ;
+ if ( doMove )
+ {
+ wxPoint point(m_x, m_y);
+ wxMoveEvent event(point, m_windowId);
+ event.SetEventObject(this);
+ GetEventHandler()->ProcessEvent(event) ;
+ }
+ if ( doResize )
+ {
+ MacRepositionScrollBars() ;
+ wxSize size(m_width, m_height);
+ wxSizeEvent event(size, m_windowId);
+ event.SetEventObject(this);
+ GetEventHandler()->ProcessEvent(event);
+ }
+ }
+