public override void OnDraw(Graphics2D graphics2D) { ImageBuffer widgetsSubImage = ImageBuffer.NewSubImageReference(graphics2D.DestImage, graphics2D.GetClippingRect()); IImageByte backBuffer = widgetsSubImage; if (!didInit) { didInit = true; OnInitialize(); } ImageBuffer image; if (backBuffer.BitDepth == 32) { image = new ImageBuffer(); image.Attach(backBuffer, new BlenderBGRA()); } else { if (backBuffer.BitDepth != 24) { throw new System.NotSupportedException(); } image = new ImageBuffer(); image.Attach(backBuffer, new BlenderBGR()); } ImageClippingProxy clippingProxy = new ImageClippingProxy(image); clippingProxy.clear(new ColorF(1, 1, 1)); g_rasterizer.SetVectorClipBox(0, 0, Width, Height); ScanlineRenderer scanlineRenderer = new ScanlineRenderer(); if (transformationTypeRadioButton.SelectedIndex == 0) { Bilinear tr = new Bilinear(lionShape.Bounds.Left, lionShape.Bounds.Bottom, lionShape.Bounds.Right, lionShape.Bounds.Top, quadPolygonControl.polygon()); if (tr.is_valid()) { //-------------------------- // Render transformed lion // foreach (var shape in lionShape.Shapes) { g_rasterizer.add_path(new VertexSourceApplyTransform(shape.VertexStorage, tr)); scanlineRenderer.RenderSolid(clippingProxy, g_rasterizer, g_scanline, shape.Color); } //-------------------------- //-------------------------- // Render transformed ellipse // VertexSource.Ellipse ell = new MatterHackers.Agg.VertexSource.Ellipse((lionShape.Bounds.Left + lionShape.Bounds.Right) * 0.5, (lionShape.Bounds.Bottom + lionShape.Bounds.Top) * 0.5, (lionShape.Bounds.Right - lionShape.Bounds.Left) * 0.5, (lionShape.Bounds.Top - lionShape.Bounds.Bottom) * 0.5, 200); Stroke ell_stroke = new Stroke(ell); ell_stroke.width(3.0); VertexSourceApplyTransform trans_ell = new VertexSourceApplyTransform(ell, tr); VertexSourceApplyTransform trans_ell_stroke = new VertexSourceApplyTransform(ell_stroke, tr); g_rasterizer.add_path(trans_ell); scanlineRenderer.RenderSolid(clippingProxy, g_rasterizer, g_scanline, new Color(0.5, 0.3, 0.0, 0.3)); g_rasterizer.add_path(trans_ell_stroke); scanlineRenderer.RenderSolid(clippingProxy, g_rasterizer, g_scanline, new Color(0.0, 0.3, 0.2, 1.0)); } } else { Perspective tr = new Perspective(lionShape.Bounds.Left, lionShape.Bounds.Bottom, lionShape.Bounds.Right, lionShape.Bounds.Top, quadPolygonControl.polygon()); if (tr.is_valid()) { // Render transformed lion foreach (var shape in lionShape.Shapes) { VertexSourceApplyTransform trans = new VertexSourceApplyTransform(shape.VertexStorage, tr); g_rasterizer.reset(); g_rasterizer.add_path(trans); scanlineRenderer.RenderSolid(clippingProxy, g_rasterizer, g_scanline, shape.Color); } // Render transformed ellipse VertexSource.Ellipse FilledEllipse = new MatterHackers.Agg.VertexSource.Ellipse((lionShape.Bounds.Left + lionShape.Bounds.Right) * 0.5, (lionShape.Bounds.Bottom + lionShape.Bounds.Top) * 0.5, (lionShape.Bounds.Right - lionShape.Bounds.Left) * 0.5, (lionShape.Bounds.Top - lionShape.Bounds.Bottom) * 0.5, 200); Stroke EllipseOutline = new Stroke(FilledEllipse); EllipseOutline.width(3.0); VertexSourceApplyTransform TransformedFilledEllipse = new VertexSourceApplyTransform(FilledEllipse, tr); VertexSourceApplyTransform TransformedEllipesOutline = new VertexSourceApplyTransform(EllipseOutline, tr); g_rasterizer.add_path(TransformedFilledEllipse); scanlineRenderer.RenderSolid(clippingProxy, g_rasterizer, g_scanline, new Color(0.5, 0.3, 0.0, 0.3)); g_rasterizer.add_path(TransformedEllipesOutline); scanlineRenderer.RenderSolid(clippingProxy, g_rasterizer, g_scanline, new Color(0.0, 0.3, 0.2, 1.0)); } } //-------------------------- // Render the "quad" tool and controls g_rasterizer.add_path(quadPolygonControl); scanlineRenderer.RenderSolid(clippingProxy, g_rasterizer, g_scanline, new Color(0, 0.3, 0.5, 0.6)); //m_trans_type.Render(g_rasterizer, g_scanline, clippingProxy); base.OnDraw(graphics2D); }