private void Canvas_Draw()

in ExampleGallery/TextLayouts.xaml.cs [240:291]

• 41 lines of code
• 8 McCabe index (conditional complexity)

        private void Canvas_Draw(CanvasControl sender, CanvasDrawEventArgs args)
        {
            EnsureResources(sender, sender.Size);

            currentDrawingSession = args.DrawingSession;

            textLayout.SetBrush(0, testString.Length, null);
            if (hasSelection)
            {
                int firstIndex = Math.Min(selectionStartIndex, selectionEndIndex);
                int length = Math.Abs(selectionEndIndex - selectionStartIndex) + 1;
                CanvasTextLayoutRegion[] descriptions = textLayout.GetCharacterRegions(firstIndex, length);
                foreach (CanvasTextLayoutRegion description in descriptions)
                {
                    args.DrawingSession.FillRectangle(InflateRect(description.LayoutBounds), Colors.White);
                }
                textLayout.SetBrush(firstIndex, length, selectionTextBrush);
            }

            EnsureInlineObjects();

            EnsureTextDirection();

            args.DrawingSession.DrawTextLayout(textLayout, 0, 0, textBrush);

            if (ShowPerCharacterLayoutBounds)
            {
                for (int i = 0; i < testString.Length; i++)
                {
                    CanvasTextLayoutRegion textLayoutRegion;
                    textLayout.GetCaretPosition(i, false, out textLayoutRegion);

                    args.DrawingSession.DrawRectangle(textLayoutRegion.LayoutBounds, Colors.Blue, 2);
                }
            }

            if (ShowDrawBounds)
            {
                args.DrawingSession.DrawRectangle(textLayout.DrawBounds, Colors.Green, 2);
            }

            if (ShowLayoutBoundsWithTrailingWhitespace)
            {
                args.DrawingSession.DrawRectangle(textLayout.LayoutBoundsIncludingTrailingWhitespace, Colors.DarkRed, 2);
            }

            if (ShowLayoutBounds)
            {
                args.DrawingSession.DrawRectangle(textLayout.LayoutBounds, Colors.Red, 2, dashedStroke);
            }

        }