protected override bool OnExposeEvent(EventExpose e) { base.OnExposeEvent(e); if (!PintaCore.Workspace.HasOpenDocuments) { return(true); } double scale = PintaCore.Workspace.Scale; int x = (int)PintaCore.Workspace.Offset.X; int y = (int)PintaCore.Workspace.Offset.Y; // Translate our expose area for the whole drawingarea to just our canvas Rectangle canvas_bounds = new Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height); canvas_bounds.Intersect(e.Area); if (canvas_bounds.IsEmpty) { return(true); } canvas_bounds.X -= x; canvas_bounds.Y -= y; // Resize our offscreen surface to a surface the size of our drawing area if (canvas == null || canvas.Width != canvas_bounds.Width || canvas.Height != canvas_bounds.Height) { if (canvas != null) { (canvas as IDisposable).Dispose(); } canvas = new Cairo.ImageSurface(Cairo.Format.Argb32, canvas_bounds.Width, canvas_bounds.Height); } cr.Initialize(PintaCore.Workspace.ImageSize, PintaCore.Workspace.CanvasSize); using (Cairo.Context g = CairoHelper.Create(GdkWindow)) { // Draw our canvas drop shadow g.DrawRectangle(new Cairo.Rectangle(x - 1, y - 1, PintaCore.Workspace.CanvasSize.Width + 2, PintaCore.Workspace.CanvasSize.Height + 2), new Cairo.Color(.5, .5, .5), 1); g.DrawRectangle(new Cairo.Rectangle(x - 2, y - 2, PintaCore.Workspace.CanvasSize.Width + 4, PintaCore.Workspace.CanvasSize.Height + 4), new Cairo.Color(.8, .8, .8), 1); g.DrawRectangle(new Cairo.Rectangle(x - 3, y - 3, PintaCore.Workspace.CanvasSize.Width + 6, PintaCore.Workspace.CanvasSize.Height + 6), new Cairo.Color(.9, .9, .9), 1); // Set up our clip rectangle g.Rectangle(new Cairo.Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height)); g.Clip(); g.Translate(x, y); // Render all the layers to a surface var layers = PintaCore.Layers.GetLayersToPaint(); if (layers.Count == 0) { canvas.Clear(); } cr.Render(layers, canvas, canvas_bounds.Location); // Paint the surface to our canvas g.SetSourceSurface(canvas, canvas_bounds.X + (int)(0 * scale), canvas_bounds.Y + (int)(0 * scale)); g.Paint(); // Selection outline if (PintaCore.Layers.ShowSelection) { bool fillSelection = PintaCore.Tools.CurrentTool.Name.Contains("Select") && !PintaCore.Tools.CurrentTool.Name.Contains("Selected"); PintaCore.Workspace.ActiveDocument.Selection.Draw(g, scale, fillSelection); } } return(true); }
protected override bool OnExposeEvent(EventExpose e) { base.OnExposeEvent(e); if (!PintaCore.Workspace.HasOpenDocuments) { return(true); } double scale = PintaCore.Workspace.Scale; int x = (int)PintaCore.Workspace.Offset.X; int y = (int)PintaCore.Workspace.Offset.Y; // Translate our expose area for the whole drawingarea to just our canvas Rectangle canvas_bounds = new Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height); canvas_bounds.Intersect(e.Area); if (canvas_bounds.IsEmpty) { return(true); } canvas_bounds.X -= x; canvas_bounds.Y -= y; // Resize our offscreen surface to a surface the size of our drawing area if (canvas == null || canvas.Width != canvas_bounds.Width || canvas.Height != canvas_bounds.Height) { if (canvas != null) { (canvas as IDisposable).Dispose(); } canvas = new Cairo.ImageSurface(Cairo.Format.Argb32, canvas_bounds.Width, canvas_bounds.Height); } cr.Initialize(PintaCore.Workspace.ImageSize, PintaCore.Workspace.CanvasSize); using (Cairo.Context g = CairoHelper.Create(GdkWindow)) { // Draw our canvas drop shadow g.DrawRectangle(new Cairo.Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width + 1, PintaCore.Workspace.CanvasSize.Height + 1), new Cairo.Color(.5, .5, .5), 1); g.DrawRectangle(new Cairo.Rectangle(x - 1, y - 1, PintaCore.Workspace.CanvasSize.Width + 3, PintaCore.Workspace.CanvasSize.Height + 3), new Cairo.Color(.8, .8, .8), 1); g.DrawRectangle(new Cairo.Rectangle(x - 2, y - 2, PintaCore.Workspace.CanvasSize.Width + 5, PintaCore.Workspace.CanvasSize.Height + 5), new Cairo.Color(.9, .9, .9), 1); // Set up our clip rectangle g.Rectangle(new Cairo.Rectangle(x, y, PintaCore.Workspace.CanvasSize.Width, PintaCore.Workspace.CanvasSize.Height)); g.Clip(); g.Translate(x, y); // Render all the layers to a surface var layers = PintaCore.Layers.GetLayersToPaint(); if (layers.Count == 0) { canvas.Clear(); } cr.Render(layers, canvas, canvas_bounds.Location); // Paint the surface to our canvas g.SetSourceSurface(canvas, canvas_bounds.X + (int)(0 * scale), canvas_bounds.Y + (int)(0 * scale)); g.Paint(); // Selection outline if (PintaCore.Layers.ShowSelection) { g.Save(); g.Translate(0.5, 0.5); g.Scale(scale, scale); g.AppendPath(PintaCore.Workspace.ActiveDocument.Selection.SelectionPath); if (PintaCore.Tools.CurrentTool.Name.Contains("Select") && !PintaCore.Tools.CurrentTool.Name.Contains("Selected")) { g.Color = new Cairo.Color(0.7, 0.8, 0.9, 0.2); g.FillRule = Cairo.FillRule.EvenOdd; g.FillPreserve(); } g.LineWidth = 1 / scale; // Draw a white line first so it shows up on dark backgrounds g.Color = new Cairo.Color(1, 1, 1); g.StrokePreserve(); // Draw a black dashed line over the white line g.SetDash(new double[] { 2 / scale, 4 / scale }, 0); g.Color = new Cairo.Color(0, 0, 0); g.Stroke(); g.Restore(); } } return(true); }