public override void DrawRect(NSRect aRect)
{
// draw background
NSRect slotRect = RectForPart(NSScrollerPart.NSScrollerKnobSlot);
NSColor.BlackColor.Set();
AppKitFramework.NSRectFill(slotRect);
AppKitFramework.NSRectFill(aRect);
NSColor.ColorWithCalibratedWhiteAlpha(0.1f, 1.0f).Set();
NSBezierPath path = new NSBezierPath();
path.AppendBezierPathWithRoundedRectXRadiusYRadius(slotRect, 2.0f, 2.0f);
path.LineWidth = 3.0f;
path.Stroke();
path.Release();
// draw know
DrawKnob();
// draw the arrow button backgrounds
DrawArrow(NSScrollerPart.NSScrollerIncrementLine);
DrawArrow(NSScrollerPart.NSScrollerDecrementLine);
}
private void DrawArrow(NSScrollerPart aScrollPart)
{
NSRect rect = RectForPart(aScrollPart);
// draw background
NSColor.BlackColor.Set();
AppKitFramework.NSRectFill(rect);
// draw button background
if (aScrollPart == HitPart)
{
NSColor.WhiteColor.Set();
}
else
{
NSColor.ColorWithCalibratedWhiteAlpha(0.1f, 1.0f).Set();
}
NSBezierPath path = new NSBezierPath();
path.AppendBezierPathWithRoundedRectXRadiusYRadius(rect.InsetRect(1.0f, 1.0f), 2.0f, 2.0f);
path.LineWidth = 2.0f;
path.Stroke();
path.Release();
// draw arrow
NSColor.WhiteColor.Set();
float arrowSize = 6.0f;
NSRect arrowRect = new NSRect(rect.MidX - (arrowSize * 0.5f),
rect.MidY - (arrowSize * 0.5f),
arrowSize,
arrowSize);
path = new NSBezierPath();
if (aScrollPart == NSScrollerPart.NSScrollerDecrementLine)
{
path.MoveToPoint(new NSPoint(arrowRect.MinX, arrowRect.MaxY));
path.LineToPoint(new NSPoint(arrowRect.MaxX, arrowRect.MaxY));
path.LineToPoint(new NSPoint(arrowRect.MidX, arrowRect.MinY));
path.LineToPoint(new NSPoint(arrowRect.MinX, arrowRect.MaxY));
}
else
{
path.MoveToPoint(new NSPoint(arrowRect.MinX, arrowRect.MinY));
path.LineToPoint(new NSPoint(arrowRect.MaxX, arrowRect.MinY));
path.LineToPoint(new NSPoint(arrowRect.MidX, arrowRect.MaxY));
path.LineToPoint(new NSPoint(arrowRect.MinX, arrowRect.MinY));
}
path.ClosePath();
path.Fill();
path.Release();
}
public override void DrawRect(NSRect aRect)
{
float left = Bounds.MinX + iPadding;
float right = Bounds.MaxX - iPadding;
float top = Bounds.MaxY - iPadding - iAnchorHeight;
float bottom = Bounds.MinY + iPadding + iAnchorHeight;
NSBezierPath path = new NSBezierPath();
// start the path in the bottom left corner, just past the arc of the corner and go clockwise
path.MoveToPoint(new NSPoint(left, bottom + iCornerRadius));
path.LineToPoint(new NSPoint(left, top - iCornerRadius));
path.AppendBezierPathWithArcFromPointToPointRadius(new NSPoint(left, top),
new NSPoint(left + iCornerRadius, top),
iCornerRadius);
if (iAnchorOnTop)
{
path.LineToPoint(new NSPoint(iAnchorApex - iAnchorWidth * 0.5f, top));
path.LineToPoint(new NSPoint(iAnchorApex, top + iAnchorHeight));
path.LineToPoint(new NSPoint(iAnchorApex + iAnchorWidth * 0.5f, top));
}
path.LineToPoint(new NSPoint(right - iCornerRadius, top));
path.AppendBezierPathWithArcFromPointToPointRadius(new NSPoint(right, top),
new NSPoint(right, top - iCornerRadius),
iCornerRadius);
path.LineToPoint(new NSPoint(right, bottom + iCornerRadius));
path.AppendBezierPathWithArcFromPointToPointRadius(new NSPoint(right, bottom),
new NSPoint(right - iCornerRadius, bottom),
iCornerRadius);
if (!iAnchorOnTop)
{
path.LineToPoint(new NSPoint(iAnchorApex + iAnchorWidth * 0.5f, bottom));
path.LineToPoint(new NSPoint(iAnchorApex, bottom - iAnchorHeight));
path.LineToPoint(new NSPoint(iAnchorApex - iAnchorWidth * 0.5f, bottom));
}
path.LineToPoint(new NSPoint(left + iCornerRadius, bottom));
path.AppendBezierPathWithArcFromPointToPointRadius(new NSPoint(left, bottom),
new NSPoint(left, bottom + iCornerRadius),
iCornerRadius);
path.ClosePath();
NSColor.WhiteColor.SetStroke();
path.LineWidth = 4.0f;
path.Stroke();
NSColor.ColorWithCalibratedWhiteAlpha(0.0f, 0.9f).SetFill();
path.Fill();
path.Release();
}