export to image

Author: RomanSoloweow

SimpleStateMachineNodeEditor/View/MainWindow.xaml

@@ -20,9 +20,10 @@
                 <MenuItem Header="File" x:Name="Item" Style="{DynamicResource MenuItemStyle}">
                     <MenuItem Header="Open" x:Name="ItemOpen" Style="{DynamicResource MenuItemStyle}"/>
                     <MenuItem Header="Save" x:Name="ItemSave" Style="{DynamicResource MenuItemStyle}"/>
-                    <MenuItem Header="SaveAs..." x:Name="ItemSaveAs" Style="{DynamicResource MenuItemStyle}">
-                        <MenuItem Header="PNG" x:Name="ItemSaveAsPNG" Style="{DynamicResource MenuItemStyle}"/>
-                        <MenuItem Header="JPEG" x:Name="ItemSaveAsJPEG" Style="{DynamicResource MenuItemStyle}"/>
+                    <MenuItem Header="SaveAs..." x:Name="ItemSaveAs" Style="{DynamicResource MenuItemStyle}"/>
+                    <MenuItem Header="Export" x:Name="ItemExport" Style="{DynamicResource MenuItemStyle}">
+                        <MenuItem Header="Export to PNG" x:Name="ItemExportToPNG" Style="{DynamicResource MenuItemStyle}"/>
+                        <MenuItem Header="Export to JPEG" x:Name="ItemExportToJPEG" Style="{DynamicResource MenuItemStyle}"/>
                     </MenuItem>
                     <MenuItem Header="Exit"  x:Name="ItemExit" Style="{DynamicResource MenuItemStyle}"/>
                 </MenuItem>

SimpleStateMachineNodeEditor/View/MainWindow.xaml.cs

@@ -76,7 +76,8 @@ private void SetupEvents()
                 this.ButtonClose.Events().Click.Subscribe(e => ButtonCloseClick(e)).DisposeWith(disposable);
                 this.ButtonMin.Events().Click.Subscribe(e => ButtonMinClick(e)).DisposeWith(disposable);
                 this.ButtonMax.Events().Click.Subscribe(e => ButtonMaxClick(e)).DisposeWith(disposable);
-                this.ItemSaveAsPNG.Events().Click.Subscribe(_ => SaveAsPNG()).DisposeWith(disposable);
+                this.ItemExportToJPEG.Events().Click.Subscribe(_ => SaveAsPNG(ImageFormats.PNG)).DisposeWith(disposable);
+                this.ItemExportToPNG.Events().Click.Subscribe(_ => SaveAsPNG(ImageFormats.JPEG)).DisposeWith(disposable);
             });
         }
 
@@ -129,18 +130,17 @@ private void HeaderClick(MouseButtonEventArgs e)
             }
         }
 
-        void SaveAsPNG()
+        void SaveAsPNG(ImageFormats format)
         {
-            //// Configure open file dialog box
-            //OpenFileDialog dlg = new OpenFileDialog();
-            //dlg.FileName = "Document"; // Default file name
-            //dlg.DefaultExt = ".png"; // Default file extension
-            ////dlg.Filter = Filter
-
-            //// Show open file dialog box
-            //DialogResult dialogResult = dlg.ShowDialog();
-            //var t = 5;
-            //this.NodesCanvas.SaveCanvasToImage()ж
+            SaveFileDialog dlg = new SaveFileDialog();
+            dlg.FileName = "SimpleStateMachine"; 
+            dlg.Filter = (format == ImageFormats.JPEG)? "JPEG Image (.jpeg)|*.jpeg":"Png Image (.png)|*.png";
+
+            DialogResult dialogResult = dlg.ShowDialog();
+            if(dialogResult==System.Windows.Forms.DialogResult.OK)
+            {
+                this.NodesCanvas.SaveCanvasToImage(dlg.FileName, format);
+            }              
         }
 
         #endregion SetupEvents

SimpleStateMachineNodeEditor/View/ViewNodesCanvas.xaml.cs

@@ -270,10 +270,13 @@ private MyPoint GetDeltaDragOver(DragEventArgs e)
 
         public void SaveCanvasToImage(string filename, ImageFormats format)
         {
-            RenderTargetBitmap renderBitmap = new RenderTargetBitmap((int)this.Canvas.Width, (int)this.Canvas.Height, 96d, 96d, PixelFormats.Pbgra32);
+            int width = (int)this.Canvas.ActualWidth;
+            int height = (int)this.Canvas.ActualHeight;
+
+            RenderTargetBitmap renderBitmap = new RenderTargetBitmap(width, height, 96d, 96d, PixelFormats.Pbgra32);
             // needed otherwise the image output is black
-            this.Canvas.Measure(new Size((int)this.Canvas.Width, (int)this.Canvas.Height));
-            this.Canvas.Arrange(new Rect(new Size((int)this.Canvas.Width, (int)this.Canvas.Height)));
+            this.Canvas.Measure(new Size(width, height));
+            this.Canvas.Arrange(new Rect(new Size(width, height)));
 
             renderBitmap.Render(this.Canvas);
             BitmapEncoder encoder;