//-----------------------------------------------------------------------------
void CGDrawContext::drawRect (const CRect &rect, const CDrawStyle drawStyle)
{
CGContextRef context = beginCGContext (true, currentState.drawMode.integralMode ());
if (context)
{
CGPathDrawingMode m;
switch (drawStyle)
{
case kDrawFilled : m = kCGPathFill; break;
case kDrawFilledAndStroked : m = kCGPathFillStroke; break;
default : m = kCGPathStroke; break;
}
applyLineStyle (context);
CGRect r;
if (currentState.drawMode.integralMode ())
{
r = CGRectMake (round (rect.left), round (rect.top + 1), round (rect.width () - 1), round (rect.height () - 1));
}
else
{
r = CGRectMake (rect.left, rect.top + 1, rect.width () - 1, rect.height () - 1);
}
if ((((int32_t)currentState.frameWidth) % 2))
CGContextTranslateCTM (context, 0.5f, -0.5f);
CGContextBeginPath (context);
CGContextAddRect (context, r);
CGContextDrawPath (context, m);
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawLines (const CPoint* points, const int32_t& numLines)
{
CGContextRef context = beginCGContext (true, currentState.drawMode.integralMode ());
if (context)
{
applyLineStyle (context);
if ((((int32_t)currentState.frameWidth) % 2))
CGContextTranslateCTM (context, 0.5f, -0.5f);
CGPoint* cgPoints = new CGPoint[numLines*2];
for (int32_t i = 0; i < numLines * 2; i += 2)
{
if (currentState.drawMode.integralMode ())
{
cgPoints[i].x = round (points[i].x);
cgPoints[i+1].x = round (points[i+1].x);
cgPoints[i].y = round (points[i].y);
cgPoints[i+1].y = round (points[i+1].y);
}
else
{
cgPoints[i].x = points[i].x;
cgPoints[i+1].x = points[i+1].x;
cgPoints[i].y = points[i].y;
cgPoints[i+1].y = points[i+1].y;
}
}
CGContextStrokeLineSegments (context, cgPoints, numLines*2);
delete [] cgPoints;
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawArc (const CRect &rect, const float _startAngle, const float _endAngle, const CDrawStyle drawStyle) // in degree
{
CGContextRef context = beginCGContext (true, getDrawMode ().integralMode ());
if (context)
{
CGPathDrawingMode m;
switch (drawStyle)
{
case kDrawFilled :
m = kCGPathFill;
break;
case kDrawFilledAndStroked :
m = kCGPathFillStroke;
break;
default :
m = kCGPathStroke;
break;
}
applyLineStyle (context);
CGContextBeginPath (context);
CGDrawContextInternal::addOvalToPath (context, CPoint (rect.left + rect.getWidth () / 2., rect.top + rect.getHeight () / 2.), static_cast<CGFloat> (rect.getWidth () / 2.), static_cast<CGFloat> (rect.getHeight () / 2.), _startAngle, _endAngle);
CGContextDrawPath (context, m);
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::lineTo (const CPoint& point)
{
CGContextRef context = beginCGContext (true, currentState.drawMode.integralMode ());
if (context)
{
applyLineStyle (context);
if ((((int32_t)currentState.frameWidth) % 2))
CGContextTranslateCTM (context, 0.5f, -0.5f);
CGContextBeginPath (context);
if (currentState.drawMode.integralMode ())
{
CGContextMoveToPoint (context, round (currentState.penLoc.h), round (currentState.penLoc.v));
CGContextAddLineToPoint (context, round (point.h), round (point.v));
}
else
{
CGContextMoveToPoint (context, currentState.penLoc.h, currentState.penLoc.v);
CGContextAddLineToPoint (context, point.h, point.v);
}
CGContextDrawPath (context, kCGPathStroke);
releaseCGContext (context);
}
currentState.penLoc = point;
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawEllipse (const CRect &rect, const CDrawStyle drawStyle)
{
CGContextRef context = beginCGContext (true, getDrawMode ().integralMode ());
if (context)
{
CGRect r = CGRectMake (static_cast<CGFloat> (rect.left), static_cast<CGFloat> (rect.top + 1), static_cast<CGFloat> (rect.getWidth () - 1), static_cast<CGFloat> (rect.getHeight () - 1));
CGPathDrawingMode m;
switch (drawStyle)
{
case kDrawFilled :
m = kCGPathFill;
break;
case kDrawFilledAndStroked :
m = kCGPathFillStroke;
break;
default :
m = kCGPathStroke;
break;
}
applyLineStyle (context);
if (getDrawMode ().integralMode ())
{
r = pixelAlligned (r);
applyLineWidthCTM (context);
}
CGContextAddEllipseInRect (context, r);
CGContextDrawPath (context, m);
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawLines (const LineList& lines)
{
if (lines.size () == 0)
return;
CGContextRef context = beginCGContext (true, getDrawMode ().integralMode ());
if (context)
{
applyLineStyle (context);
CGPoint* cgPoints = new CGPoint[lines.size () * 2];
uint32_t index = 0;
VSTGUI_RANGE_BASED_FOR_LOOP(LineList, lines, LinePair, line)
cgPoints[index] = CGPointFromCPoint (line.first);
cgPoints[index+1] = CGPointFromCPoint (line.second);
if (getDrawMode ().integralMode ())
{
cgPoints[index] = pixelAlligned (cgPoints[index]);
cgPoints[index+1] = pixelAlligned (cgPoints[index+1]);
}
index += 2;
VSTGUI_RANGE_BASED_FOR_LOOP_END
if (getDrawMode ().integralMode ())
{
int32_t frameWidth = static_cast<int32_t> (currentState.frameWidth);
if (frameWidth % 2)
CGContextTranslateCTM (context, 0.5, 0.5);
}
CGContextStrokeLineSegments (context, cgPoints, lines.size () * 2);
delete [] cgPoints;
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawLine (const LinePair& line)
{
CGContextRef context = beginCGContext (true, getDrawMode ().integralMode ());
if (context)
{
applyLineStyle (context);
CGContextBeginPath (context);
CGPoint first = CGPointFromCPoint (line.first);
CGPoint second = CGPointFromCPoint (line.second);
if (getDrawMode ().integralMode ())
{
first = pixelAlligned (first);
second = pixelAlligned (second);
int32_t frameWidth = static_cast<int32_t> (currentState.frameWidth);
if (frameWidth % 2)
CGContextTranslateCTM (context, 0.5, 0.5);
}
CGContextMoveToPoint (context, first.x, first.y);
CGContextAddLineToPoint (context, second.x, second.y);
CGContextDrawPath (context, kCGPathStroke);
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawGraphicsPath (CGraphicsPath* _path, PathDrawMode mode, CGraphicsTransform* t)
{
QuartzGraphicsPath* path = dynamic_cast<QuartzGraphicsPath*> (_path);
if (path == 0)
return;
CGContextRef context = beginCGContext (true, getDrawMode ().integralMode ());
if (context)
{
CGPathDrawingMode cgMode;
switch (mode)
{
case kPathFilledEvenOdd:
{
cgMode = kCGPathEOFill;
break;
}
case kPathStroked:
{
cgMode = kCGPathStroke;
applyLineStyle (context);
break;
}
default:
{
cgMode = kCGPathFill;
break;
}
}
if (getDrawMode ().integralMode ())
{
applyLineWidthCTM (context);
path->pixelAlign (this, t);
CGContextAddPath (context, path->getCGPathRef ());
}
else if (t)
{
CGContextSaveGState (context);
CGAffineTransform transform = QuartzGraphicsPath::createCGAffineTransform (*t);
CGContextConcatCTM (context, transform);
CGContextAddPath (context, path->getCGPathRef ());
CGContextRestoreGState (context);
}
else
CGContextAddPath (context, path->getCGPathRef ());
CGContextDrawPath (context, cgMode);
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawEllipse (const CRect &rect, const CDrawStyle drawStyle)
{
CGContextRef context = beginCGContext (true, currentState.drawMode.integralMode ());
if (context)
{
CGPathDrawingMode m;
switch (drawStyle)
{
case kDrawFilled : m = kCGPathFill; break;
case kDrawFilledAndStroked : m = kCGPathFillStroke; break;
default : m = kCGPathStroke; break;
}
applyLineStyle (context);
if (rect.width () != rect.height ())
{
CGContextSaveGState (context);
CGContextBeginPath (context);
CGRect cgRect = CGRectMake (rect.left, rect.top, rect.width (), rect.height ());
CGPoint center = CGPointMake (CGRectGetMidX (cgRect), CGRectGetMidY (cgRect));
CGFloat a = CGRectGetWidth (cgRect) / 2.;
CGFloat b = CGRectGetHeight (cgRect) / 2.;
CGContextTranslateCTM (context, center.x, center.y);
CGContextScaleCTM (context, a, b);
CGContextMoveToPoint (context, 1, 0);
CGContextAddArc (context, 0, 0, 1, radians (0), radians (360), 0);
CGContextClosePath (context);
CGContextRestoreGState (context);
CGContextDrawPath (context, m);
}
else
{
CGFloat radius = rect.width () * 0.5;
CGContextBeginPath (context);
CGContextAddArc (context, rect.left + radius, rect.top + radius, radius, radians (0), radians (360), 0);
CGContextClosePath (context);
CGContextDrawPath (context, m);
}
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawArc (const CRect &rect, const float _startAngle, const float _endAngle, const CDrawStyle drawStyle) // in degree
{
CGContextRef context = beginCGContext (true, currentState.drawMode.integralMode ());
if (context)
{
CGPathDrawingMode m;
switch (drawStyle)
{
case kDrawFilled : m = kCGPathFill; break;
case kDrawFilledAndStroked : m = kCGPathFillStroke; break;
default : m = kCGPathStroke; break;
}
applyLineStyle (context);
CGContextBeginPath (context);
addOvalToPath (context, CPoint (rect.left + rect.width () / 2, rect.top + rect.height () / 2), rect.width () / 2, rect.height () / 2, -_startAngle, -_endAngle);
if (drawStyle == kDrawFilled || kDrawFilledAndStroked)
CGContextAddLineToPoint (context, rect.left + rect.width () / 2, rect.top + rect.height () / 2);
CGContextDrawPath (context, m);
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawPolygon (const CPoint* pPoints, int32_t numberOfPoints, const CDrawStyle drawStyle)
{
CGContextRef context = beginCGContext (true, currentState.drawMode.integralMode ());
if (context)
{
CGPathDrawingMode m;
switch (drawStyle)
{
case kDrawFilled : m = kCGPathFill; break;
case kDrawFilledAndStroked : m = kCGPathFillStroke; break;
default : m = kCGPathStroke; break;
}
applyLineStyle (context);
CGContextBeginPath (context);
CGContextMoveToPoint (context, pPoints[0].h, pPoints[0].v);
for (int32_t i = 1; i < numberOfPoints; i++)
CGContextAddLineToPoint (context, pPoints[i].h, pPoints[i].v);
CGContextDrawPath (context, m);
releaseCGContext (context);
}
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawPolygon (const PointList& polygonPointList, const CDrawStyle drawStyle)
{
if (polygonPointList.size () == 0)
return;
CGContextRef context = beginCGContext (true, getDrawMode ().integralMode ());
if (context)
{
CGPathDrawingMode m;
switch (drawStyle)
{
case kDrawFilled :
m = kCGPathFill;
break;
case kDrawFilledAndStroked :
m = kCGPathFillStroke;
break;
default :
m = kCGPathStroke;
break;
}
applyLineStyle (context);
CGContextBeginPath (context);
CGPoint p = CGPointFromCPoint(polygonPointList[0]);
if (getDrawMode ().integralMode ())
p = pixelAlligned (p);
CGContextMoveToPoint (context, p.x, p.y);
for (uint32_t i = 1; i < polygonPointList.size (); i++)
{
p = CGPointFromCPoint (polygonPointList[i]);
if (getDrawMode ().integralMode ())
p = pixelAlligned (p);
CGContextAddLineToPoint (context, p.x, p.y);
}
CGContextDrawPath (context, m);
releaseCGContext (context);
}
}
