protected override bool OnPaint(PaintEventArgs eventArgs, Rectangle viewPort, AmbientTheme ambientTheme) { bool messageHandled = false; if (this.draggedDesignerImages != null && DropTargetDesigner is FreeformActivityDesigner) { using (Region clipRegion = new Region(ActivityDesignerPaint.GetDesignerPath(ParentView.RootDesigner, false))) { Region oldRegion = eventArgs.Graphics.Clip; eventArgs.Graphics.Clip = clipRegion; Point[] locations = GetDesignerLocations(DragInitiationPoint, this.movedDesignerImagePoint, DraggedActivities); Debug.Assert(locations.Length == DraggedActivities.Count); Debug.Assert(this.draggedDesignerImages.Count == DraggedActivities.Count); for (int i = 0; i < this.draggedDesignerImages.Count; i++) { Size imageSize = this.draggedDesignerImages[i].Size; ActivityDesignerPaint.DrawImage(eventArgs.Graphics, this.draggedDesignerImages[i], new Rectangle(new Point(locations[i].X - 2 * ambientTheme.Margin.Width, locations[i].Y - 2 * ambientTheme.Margin.Height), imageSize), new Rectangle(Point.Empty, imageSize), DesignerContentAlignment.Fill, 0.4f, false); } eventArgs.Graphics.Clip = oldRegion; } } else { messageHandled = base.OnPaint(eventArgs, viewPort, ambientTheme); } return(messageHandled); }
public override void OnPaint(PaintEventArgs e, ViewPortData viewPortData) { Graphics graphics = e.Graphics; Bitmap memoryBitmap = viewPortData.MemoryBitmap; Rectangle rect = new Rectangle(Point.Empty, memoryBitmap.Size); graphics.FillRectangle(AmbientTheme.WorkspaceBackgroundBrush, rect); if (((base.parentView.RootDesigner != null) && (base.parentView.RootDesigner.Bounds.Width >= 0)) && (base.parentView.RootDesigner.Bounds.Height >= 0)) { GraphicsContainer container = graphics.BeginContainer(); Matrix matrix = new Matrix(); matrix.Scale(viewPortData.Scaling.Width, viewPortData.Scaling.Height, MatrixOrder.Prepend); Point[] pts = new Point[] { viewPortData.LogicalViewPort.Location }; matrix.TransformPoints(pts); matrix.Translate((float)(-pts[0].X + viewPortData.ShadowDepth.Width), (float)(-pts[0].Y + viewPortData.ShadowDepth.Height), MatrixOrder.Append); graphics.Transform = matrix; using (Region region = new Region(ActivityDesignerPaint.GetDesignerPath(base.parentView.RootDesigner, false))) { Region clip = graphics.Clip; graphics.Clip = region; AmbientTheme ambientTheme = WorkflowTheme.CurrentTheme.AmbientTheme; graphics.FillRectangle(Brushes.White, base.parentView.RootDesigner.Bounds); if (ambientTheme.WorkflowWatermarkImage != null) { ActivityDesignerPaint.DrawImage(graphics, ambientTheme.WorkflowWatermarkImage, base.parentView.RootDesigner.Bounds, new Rectangle(Point.Empty, ambientTheme.WorkflowWatermarkImage.Size), ambientTheme.WatermarkAlignment, 0.25f, false); } graphics.Clip = clip; } graphics.EndContainer(container); } }
// public override void OnPaint(PaintEventArgs e, ViewPortData viewPortData) { Graphics graphics = e.Graphics; Debug.Assert(graphics != null); //Get the drawing canvas Bitmap memoryBitmap = viewPortData.MemoryBitmap; Debug.Assert(memoryBitmap != null); //Fill the background using the workspace color so that we communicate the paging concept Rectangle workspaceRectangle = new Rectangle(Point.Empty, memoryBitmap.Size); graphics.FillRectangle(AmbientTheme.WorkspaceBackgroundBrush, workspaceRectangle); if (this.parentView.RootDesigner != null && this.parentView.RootDesigner.Bounds.Width >= 0 && this.parentView.RootDesigner.Bounds.Height >= 0) { GraphicsContainer graphicsState = graphics.BeginContainer(); //Create the scaling matrix Matrix transformationMatrix = new Matrix(); transformationMatrix.Scale(viewPortData.Scaling.Width, viewPortData.Scaling.Height, MatrixOrder.Prepend); //When we draw on the viewport we draw in scaled and translated. //So that we minimize the calls to DrawImage //Make sure that we scale down the logical view port origin in order to take care of scaling factor //Before we select the transform factor we make sure that logicalviewport origin is scaled down Point[] logicalViewPortOrigin = new Point[] { viewPortData.LogicalViewPort.Location }; transformationMatrix.TransformPoints(logicalViewPortOrigin); //For performance improvement and to eliminate one extra DrawImage...we draw the designers on the viewport //bitmap with visual depth consideration transformationMatrix.Translate(-logicalViewPortOrigin[0].X + viewPortData.ShadowDepth.Width, -logicalViewPortOrigin[0].Y + viewPortData.ShadowDepth.Height, MatrixOrder.Append); //Select the transform into viewport graphics. //Viewport bitmap has the scaled and translated designers which we then map to //the actual graphics based on page layout graphics.Transform = transformationMatrix; using (Region clipRegion = new Region(ActivityDesignerPaint.GetDesignerPath(this.parentView.RootDesigner, false))) { Region oldRegion = graphics.Clip; graphics.Clip = clipRegion; AmbientTheme ambientTheme = WorkflowTheme.CurrentTheme.AmbientTheme; graphics.FillRectangle(Brushes.White, this.parentView.RootDesigner.Bounds); if (ambientTheme.WorkflowWatermarkImage != null) { ActivityDesignerPaint.DrawImage(graphics, ambientTheme.WorkflowWatermarkImage, this.parentView.RootDesigner.Bounds, new Rectangle(Point.Empty, ambientTheme.WorkflowWatermarkImage.Size), ambientTheme.WatermarkAlignment, AmbientTheme.WatermarkTransparency, false); } graphics.Clip = oldRegion; } graphics.EndContainer(graphicsState); } }
protected override bool OnPaint(PaintEventArgs eventArgs, Rectangle viewPort, AmbientTheme ambientTheme) { bool flag = false; if ((this.draggedDesignerImages != null) && (base.DropTargetDesigner is FreeformActivityDesigner)) { using (Region region = new Region(ActivityDesignerPaint.GetDesignerPath(base.ParentView.RootDesigner, false))) { Region clip = eventArgs.Graphics.Clip; eventArgs.Graphics.Clip = region; Point[] pointArray = GetDesignerLocations(base.DragInitiationPoint, this.movedDesignerImagePoint, base.DraggedActivities); for (int i = 0; i < this.draggedDesignerImages.Count; i++) { Size size = this.draggedDesignerImages[i].Size; ActivityDesignerPaint.DrawImage(eventArgs.Graphics, this.draggedDesignerImages[i], new Rectangle(new Point(pointArray[i].X - (2 * ambientTheme.Margin.Width), pointArray[i].Y - (2 * ambientTheme.Margin.Height)), size), new Rectangle(Point.Empty, size), DesignerContentAlignment.Fill, 0.4f, false); } eventArgs.Graphics.Clip = clip; return(flag); } } return(base.OnPaint(eventArgs, viewPort, ambientTheme)); }