public override void DrawRect(CGRect dirtyRect)
{
var window = ((AppStoreWindow)Window);
var drawsAsMainWindow = window.DrawsAsMainWindow();
// Start by filling the title bar area with black in fullscreen mode to match native apps
// Custom title bar drawing blocks can simply override this by not applying the clipping path
if (window.IsFullScreen())
{
NSColor.Black.SetFill();
NSBezierPath.FromRect(Bounds).Fill();
}
CGPath clippingPath;
var drawingRect = Bounds;
if (window.TitleBarDrawingCallbackAction != null)
{
clippingPath = DrawingHelper.CreateClippingPath(drawingRect, CORNER_CLIP_RADIUS);
window.TitleBarDrawingCallbackAction(drawsAsMainWindow, drawingRect, clippingPath);
}
else
{
// There's a thin whitish line between the darker gray window border line
// and the gray noise textured gradient; preserve that when drawing a native title bar
var clippingRect = drawingRect;
clippingRect.Height -= 1;
clippingPath = DrawingHelper.CreateClippingPath(clippingRect, CORNER_CLIP_RADIUS);
DrawWindowBackgroundGradient(drawingRect, clippingPath);
}
if (window.ShowsTitle && ((window.StyleMask & NSWindowStyle.FullScreenWindow) == 0 || window.ShowsTitleInFullscreen))
{
NSDictionary dictionary;
var titleTextRect = GetTitleFrame(out dictionary, window);
if (window.VerticallyCenterTitle)
{
titleTextRect.Y = (float)Math.Floor(drawingRect.GetMidY() - titleTextRect.Height / 2f + 1);
}
var title = new NSAttributedString(window.Title, dictionary);
title.DrawString(titleTextRect);
}
}
private void DrawWindowBackgroundGradient(CGRect drawingRect, CGPath clippingPath)
{
var window = (AppStoreWindow)Window;
clippingPath.ApplyClippingPathInCurrentContext();
if (window.IsTextured())
{
// If this is a textured window, we can draw the real background gradient and noise pattern
var contentBorderThickness = window.TitleBarHeight;
if (window.IsFullScreen())
{
contentBorderThickness -= window.MinimumTitleBarHeight();
}
window.SetAutorecalculatesContentBorderThickness(false, NSRectEdge.MaxYEdge);
window.SetContentBorderThickness(contentBorderThickness, NSRectEdge.MaxYEdge);
NSGraphicsExtensions.DrawWindowBackground(drawingRect);
}
else
{
// Not textured, we have to fake the background gradient and noise pattern
var drawsAsMainWindow = window.DrawsAsMainWindow();
var startColor = drawsAsMainWindow ? window.TitleBarStartColor : window.InactiveTitleBarStartColor;
var endColor = drawsAsMainWindow ? window.TitleBarEndColor : window.InactiveTitleBarEndColor;
if (startColor == default(NSColor))
{
startColor = AppStoreWindow.DefaultTitleBarStartColor(drawsAsMainWindow);
}
if (endColor == default(NSColor))
{
endColor = AppStoreWindow.DefaultTitleBarEndColor(drawsAsMainWindow);
}
var context = NSGraphicsContext.CurrentContext.GraphicsPort;
var gradient = DrawingHelper.CreateGraidentWithColors(startColor, endColor);
context.DrawLinearGradient(gradient, new CGPoint(drawingRect.GetMidX(), drawingRect.GetMinY()), new CGPoint(drawingRect.GetMidX(), drawingRect.GetMaxY()), 0);
if (drawsAsMainWindow)
{
var noiseRect = new CGRect(1.0f, 1.0f, drawingRect.Width, drawingRect.Height);
if (window.ShowBaselineSeparator)
{
var separatorHeight = BaselineSeparatorFrame.Height;
noiseRect.Y -= separatorHeight;
noiseRect.Height += separatorHeight;
}
NSGraphicsContext.CurrentContext.SaveGraphicsState();
var noiseClippingPath = DrawingHelper.CreateClippingPath(noiseRect, CORNER_CLIP_RADIUS);
context.AddPath(noiseClippingPath);
context.Clip();
DrawNoise(0.1f);
NSGraphicsContext.CurrentContext.RestoreGraphicsState();
}
}
if (window.ShowBaselineSeparator)
{
DrawBaselineSeparator(BaselineSeparatorFrame);
}
}
