コード例 #1
0
        private void DrawWindowBackgroundGradient(RectangleF 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 PointF(drawingRect.GetMidX(), drawingRect.GetMinY()), new PointF(drawingRect.GetMidX(), drawingRect.GetMaxY()), 0);

                if (drawsAsMainWindow)
                {
                    var noiseRect = new RectangleF(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);
            }
        }