// ****************************************************************************
//
// Function Name: RSingleSelection::SelectionRectFromDeviceObjectRect( )
//
// Description: Converts the given bounding rect to a selection rect
// by inflating
//
// Returns: Nothing
//
// Exceptions: None
//
// ****************************************************************************
//
void RSingleSelection::SelectionRectFromDeviceObjectRect( YComponentBoundingRect& objectBoundingRect, BOOLEAN fOutset )
{
// Dont bother if the rect is too small
if( objectBoundingRect.IsEmpty( ) )
return;
// If Outsetting, inflate the rect. Otherwise, deflate the rect
if( fOutset == TRUE )
objectBoundingRect.Inflate( RRealSize( (kSelectionOutlineWidth+kSelectionOutlineDistanceFromObject)/2.F, (kSelectionOutlineWidth+kSelectionOutlineDistanceFromObject)/2.F ) );
else
objectBoundingRect.Inflate( RRealSize( -( kSelectionOutlineWidth+kSelectionOutlineDistanceFromObject ), -( kSelectionOutlineWidth+kSelectionOutlineDistanceFromObject ) ) );
}
// ****************************************************************************
//
// Function Name: RWindowView::InvalidateVectorRect( )
//
// Description: Invalidates the given vector rect in this view
//
// Returns: Nothing
//
// Exceptions: None
//
// ****************************************************************************
//
void RWindowView::InvalidateVectorRect( const RRealVectorRect& rect, BOOLEAN fErase )
{
//
// Only invalidate if we have a CWnd
if( !GetCWnd() )
return;
// Get the bounding rect...
RRealRect temp = rect.m_TransformedBoundingRect;
// Get our transformation...
R2dTransform transform;
ApplyTransform( transform, FALSE, FALSE );
// Apply it to our bounds...
temp *= transform;
// Convert the bounds to device units
::LogicalUnitsToDeviceUnits( temp, *this );
// guard for roundoff...
const YRealDimension kRoundOffGuard = 2.0;
temp.Inflate( RRealSize( kRoundOffGuard, kRoundOffGuard ) );
// Put it in a CRect and do the invalidate
CRect crect( ::Round(temp.m_Left), ::Round(temp.m_Top), ::Round(temp.m_Right), ::Round(temp.m_Bottom) );
GetCWnd( ).InvalidateRect( crect, fErase );
}
// ****************************************************************************
//
// Function Name: RSingleSelection::GetRotateHandle( )
//
// Description: Retrieves a vector rect representing the rotation handle.
//
// Returns: Nothing
//
// Exceptions: Nothing
//
// ****************************************************************************
//
void RSingleSelection::GetRotateHandle( RRealVectorRect& rotateHandleRect ) const
{
// Get the bounding rect
YSelectionBoundingRect boundingRect;
GetSelectionBoundingRect( boundingRect );
RRealPoint centerPoint = boundingRect.GetCenterPoint( );
R2dTransform transform( boundingRect.GetTransform( ) );
transform.PostTranslate( centerPoint.m_x-boundingRect.m_TopLeft.m_x, centerPoint.m_y-boundingRect.m_TopLeft.m_y );
// Break the transform into its components
YAngle angle;
YRealDimension xScale;
YRealDimension yScale;
transform.Decompose( angle, xScale, yScale );
// Figure out where to end the line
RRealPoint lineEndPoint = GetRotateHandleCenterPoint( );
YRealDimension distance = centerPoint.Distance( lineEndPoint );
if ( xScale < 0 )
xScale = -xScale;
rotateHandleRect.Set( RRealSize(distance/xScale,1), transform );
// Convert to device units
RRealSize handleSize( kRotateHandleHitSize/2, kRotateHandleHitSize/2 );
::DeviceUnitsToLogicalUnits( handleSize, *m_pView );
rotateHandleRect.Inflate( handleSize );
}
// ****************************************************************************
//
// Function Name: RWindowView::OnVScroll( )
//
// Description: Called to do vertical scrolling
//
// Returns: Nothing
//
// Exceptions: None
//
// ****************************************************************************
//
void RWindowView::OnVScroll( UINT nSBCode, int nPos )
{
YIntDimension scrollAmount = OnScroll( m_pVerticalScrollBar, nSBCode, nPos );
ScrollWindow( RRealSize( 0, scrollAmount ) );
}
// ****************************************************************************
//
// Function Name: RWindowView::OnHScroll( )
//
// Description: Called to do horizontal scrolling
//
// Returns: Nothing
//
// Exceptions: None
//
// ****************************************************************************
//
void RWindowView::OnHScroll( UINT nSBCode, int nPos )
{
YIntDimension scrollAmount = OnScroll( m_pHorizontalScrollBar, nSBCode, nPos );
ScrollWindow( RRealSize( scrollAmount, 0 ) );
}
// ****************************************************************************
//
// Function Name: RWindowView::GetScreenDPI( )
//
// Description: Accessor
//
// Returns: The DPI of the screen
//
// Exceptions: None
//
// ****************************************************************************
//
RRealSize RWindowView::GetDPI( ) const
{
return RRealSize( m_ScreenDPI.m_dx, m_ScreenDPI.m_dy );
}
// ****************************************************************************
//
// Function Name: RCompositeSelection::SetResizeCursor( )
//
// Description: Calculates which resize cursor to use, and sets it
//
// Returns: Nothing
//
// Exceptions: None
//
// ****************************************************************************
//
void RCompositeSelection::SetResizeCursor( RSingleSelection* pHitObject, EHitLocation eHitLocation ) const
{
// Get the center point of the object
YComponentBoundingRect boundingRect;
pHitObject->GetObjectBoundingRect( boundingRect );
RRealPoint centerPoint = boundingRect.GetCenterPoint( );
// Create a new bounding rect that is a square.
YComponentBoundingRect squareRect = boundingRect;
RRealSize size = squareRect.WidthHeight( );
if( size.m_dx > size.m_dy )
squareRect.UnrotateAndScaleAboutPoint( centerPoint, RRealSize( size.m_dy / size.m_dx, 1.0 ) );
else
squareRect.UnrotateAndScaleAboutPoint( centerPoint, RRealSize( 1.0, size.m_dx / size.m_dy ) );
// Select a point from this square based on the hit location
RRealPoint point;
switch( eHitLocation )
{
case kLeftResizeHandle :
::midpoint( point, squareRect.m_TopLeft,squareRect.m_BottomLeft);
break;
case kTopResizeHandle :
::midpoint( point, squareRect.m_TopLeft,squareRect.m_TopRight);
break;
case kRightResizeHandle :
::midpoint( point, squareRect.m_TopRight,squareRect.m_BottomRight);
break;
case kBottomResizeHandle :
::midpoint( point, squareRect.m_BottomLeft,squareRect.m_BottomRight);
break;
case kTopLeftResizeHandle :
point = squareRect.m_TopLeft;
break;
case kTopRightResizeHandle :
point = squareRect.m_TopRight;
break;
case kBottomLeftResizeHandle :
point = squareRect.m_BottomLeft;
break;
case kBottomRightResizeHandle :
point = squareRect.m_BottomRight;
break;
default :
TpsAssertAlways( "Invalid hit location in RCompositeSelection::SetResizeCursor( )." );
}
// Calculate the angle between a vertical line through the square center and
// a line connecting the calculatated point and the square center.
YAngle angle = ::atan2( (YFloatType)( point.m_x - centerPoint.m_x ), (YFloatType)( centerPoint.m_y - point.m_y ) );
// atan2 returns an angle between PI and -PI. Convert this to an angle between 0 and 2PI
if( angle < 0 )
angle += ( 2 * kPI );
// Select a cursor. We have 4 cursors to choose from, rotated in 45 degree
// increments. Divide the angle by 45 deg. and use the resulting octant
// number mod 4 to index into an array of cursor ids.
int nOctant = ::Round( angle / ( kPI / 4 ) );
TpsAssert( nOctant >= 0 && nOctant <= 8, "Invalid octant." );
#ifdef _WINDOWS
static LPCTSTR cursorArray[ 4 ] = { IDC_SIZENS, IDC_SIZENESW, IDC_SIZEWE, IDC_SIZENWSE };
#else
// REVIEW: define cursors for Mac
#endif
// Set the cursor
::GetCursorManager( ).SetCursor( cursorArray[ nOctant % 4 ] );
}
// ****************************************************************************
//
// Function Name: RPsd3RuledLineGraphic::RenderRails()
//
// Description: Draws the rails of the Ruled Line
//
// Returns: Nothing
//
// Exceptions: None
//
// ****************************************************************************
void RPsd3RuledLineGraphic::RenderRails(RDrawingSurface* pDS, RPath* pPath, const RRealSize& rLineSize, const R2dTransform& rTransform, const RIntRect& rRender, const RColor& rMonoColor) const
{
// Make sure we have a rail (is this necessary?)
if ( !m_pRail )
return;
// Compute the inverse of the transform
R2dTransform invTransform( rTransform );
invTransform.Invert( );
YRealDimension xScale;
YRealDimension yScale;
YAngle rotation;
rTransform.Decompose( rotation, xScale, yScale );
// Compute the size of the right and left caps respectively (if they exist)
YRealDimension leftCapSize = (m_pLeftCap!=NULL)? rLineSize.m_dy * m_pLeftCap->GetAspectRatio( ) : 0.0;
YRealDimension rightCapSize = (m_pRightCap!=NULL)? rLineSize.m_dy * m_pRightCap->GetAspectRatio( )
: ((m_fMirrorCaps)? leftCapSize : 0.0 );
YRealDimension halfLine = rLineSize.m_dx / 2.0;
if ( leftCapSize > halfLine )
leftCapSize = halfLine;
if ( rightCapSize > halfLine)
rightCapSize = halfLine;
// Count the number of rails needed
YRealDimension yVariableLength( rLineSize.m_dx - leftCapSize - rightCapSize );
YRealDimension yNominalXDimension( rLineSize.m_dy * m_pRail->GetAspectRatio() );
sLONG sRailCount = ::GetRailCount(yVariableLength, yNominalXDimension );
//
// If no rails are needed, we are done
if (sRailCount == 0) return;
// Compute the new rail sizes (the small and large ones)
RRealSize smallRailSize( yVariableLength / (YFloatType)sRailCount, rLineSize.m_dy );
smallRailSize *= rTransform;
smallRailSize = RRealSize( floor( smallRailSize.m_dx ), floor( smallRailSize.m_dy ) );
RRealSize largeRailSize( smallRailSize.m_dx+1.0, smallRailSize.m_dy+1.0 );
//
// Re-expand to logical units
smallRailSize *= invTransform;
largeRailSize *= invTransform;
//
// Reset the y dimension
smallRailSize.m_dy = largeRailSize.m_dy = rLineSize.m_dy;
// What is the excess
YIntDimension smallSize = sRailCount;
YIntDimension increment = static_cast<YIntDimension>( (yVariableLength - (smallRailSize.m_dx * sRailCount)) * xScale) + 1;
YRealDimension xStartOffset = 0.0;
YIntDimension excessCounter = 0;
TpsAssert( smallSize>=0, "Extra space is negative" );
if (m_pLeftCap)
xStartOffset += leftCapSize;
RRealSize rRailSize( rLineSize );
for (int nRail = 0; nRail < sRailCount-1; ++nRail)
{
// Create a transform and offset it to the proper location
R2dTransform renderTransform( rTransform );
renderTransform.PreTranslate( xStartOffset, 0 );
// Add the extra to the excessCounter
excessCounter += increment;
if ( excessCounter >= smallSize )
{
rRailSize = largeRailSize;//smallRailSize;
excessCounter -= smallSize;
}
else
rRailSize = smallRailSize;//largeRailSize;
if (pDS) m_pRail->Render(*pDS, rRailSize, renderTransform, rRender, rMonoColor);
if (pPath) m_pRail->GetOutlinePath(*pPath, rRailSize, renderTransform);
xStartOffset += rRailSize.m_dx;
}
// Render the last rail, but make sure it is large enough
R2dTransform tmpTransform( rTransform );
tmpTransform.PreTranslate( xStartOffset, 0 );
rRailSize.m_dx = yVariableLength + leftCapSize - xStartOffset;
if (pDS) m_pRail->Render(*pDS, rRailSize, tmpTransform, rRender, rMonoColor);
if (pPath) m_pRail->GetOutlinePath(*pPath, rRailSize, tmpTransform);
}
// ****************************************************************************
//
// Function Name: RSingleSelection::GetResizeSelectionHandle( )
//
// Description: Retrieves a vector rect representing requested resize handle.
//
// Returns: Nothing
//
// Exceptions: Memory
//
// ****************************************************************************
//
void RSingleSelection::GetResizeSelectionHandle( RRealRect& rHandle, const R2dTransform& transform, EHitLocation eHit, BOOLEAN fRender ) const
{
RRealPoint point;
YSelectionBoundingRect boundingRect;
RIntSize outsetSize = (fRender)? RRealSize( kCornerResizeHandleRenderSize, kCornerResizeHandleRenderSize ) :
RRealSize( kResizeHandleHitSize, kResizeHandleHitSize );
// Get the bounding rectangle
GetSelectionBoundingRect( boundingRect );
// Get the proper point to transform
switch ( eHit )
{
case kLeftResizeHandle:
::midpoint( point, boundingRect.m_TopLeft, boundingRect.m_BottomLeft );
outsetSize.m_dx = Max( kEdgeResizeHandleRenderSize, YIntDimension(outsetSize.m_dx/2) );
break;
case kTopResizeHandle:
::midpoint( point, boundingRect.m_TopLeft, boundingRect.m_TopRight );
outsetSize.m_dy = Max( kEdgeResizeHandleRenderSize, YIntDimension(outsetSize.m_dy/2) );
break;
case kRightResizeHandle:
::midpoint( point, boundingRect.m_TopRight, boundingRect.m_BottomRight );
outsetSize.m_dx = Max( kEdgeResizeHandleRenderSize, YIntDimension(outsetSize.m_dx/2) );
break;
case kBottomResizeHandle:
::midpoint( point, boundingRect.m_BottomLeft, boundingRect.m_BottomRight );
outsetSize.m_dy = Max( kEdgeResizeHandleRenderSize, YIntDimension(outsetSize.m_dy/2) );
break;
case kTopLeftResizeHandle:
point = boundingRect.m_TopLeft;
break;
case kTopRightResizeHandle:
point = boundingRect.m_TopRight;
break;
case kBottomLeftResizeHandle:
point = boundingRect.m_BottomLeft;
break;
case kBottomRightResizeHandle:
point = boundingRect.m_BottomRight;
break;
default :
TpsAssertAlways( "Asking for the selection handle of invalid type" );
point = boundingRect.GetCenterPoint();
}
RIntSize halfOutset( outsetSize.m_dx/2, outsetSize.m_dy/2);
::LogicalUnitsToDeviceUnits( point, *m_pView );
rHandle.m_Left = point.m_x - halfOutset.m_dx;
rHandle.m_Top = point.m_y - halfOutset.m_dy;
rHandle.m_Right = point.m_x + outsetSize.m_dx - halfOutset.m_dx;
rHandle.m_Bottom = point.m_y + outsetSize.m_dy - halfOutset.m_dy;
::DeviceUnitsToLogicalUnits( rHandle, *m_pView );
rHandle *= transform;
}