void ExportToPng(SequenceDiagramView view)
{
var bodyElement = (UIElement)view.ScrollViewer_Body.Content;
var headerElement = (UIElement)view.ScrollViewer_Header.Content;
var actualHeight = bodyElement.RenderSize.Height + headerElement.RenderSize.Height;
var actualWidth = bodyElement.RenderSize.Width;
var renderTarget = new RenderTargetBitmap((int)actualWidth, (int)actualHeight, 96, 96, PixelFormats.Default);
var bodySourceBrush = new VisualBrush(bodyElement);
var drawingVisual = new DrawingVisual();
using (var drawingContext = drawingVisual.RenderOpen())
{
drawingContext.DrawRectangle(new SolidColorBrush(Colors.White), null, new Rect(new Point(0, 0), new Point(actualWidth, actualHeight)));
drawingContext.DrawRectangle(bodySourceBrush, null, new Rect(new Point(0, 0), new Point(actualWidth, actualHeight)));
}
renderTarget.Render(drawingVisual);
var saveFileDialog = new SaveFileDialog
{
AddExtension = true,
DefaultExt = ".png",
FileName = "sequencediagram.png",
Filter = "Portable Network Graphics (.png)|*.png"
};
if (saveFileDialog.ShowDialog() == true)
{
SaveAsPNG(renderTarget, saveFileDialog.FileName);
}
}
public SequenceDiagramViewModel(
IServiceControl serviceControl,
ISettingsProvider settingsProvider,
MessageSelectionContext selectionContext,
DiagramLegendViewModel diagramLegend,
CopyConversationIDCommand copyConversationIDCommand,
CopyMessageURICommand copyMessageURICommand,
RetryMessageCommand retryMessageCommand,
SearchByMessageIDCommand searchByMessageIDCommand,
ChangeSelectedMessageCommand changeSelectedMessageCommand,
ShowExceptionCommand showExceptionCommand,
ReportMessageCommand reportMessageCommand,
SequenceDiagramView view)
{
this.serviceControl = serviceControl;
this.settingsProvider = settingsProvider;
Selection = selectionContext;
CopyConversationIDCommand = copyConversationIDCommand;
CopyMessageURICommand = copyMessageURICommand;
RetryMessageCommand = retryMessageCommand;
SearchByMessageIDCommand = searchByMessageIDCommand;
ChangeSelectedMessageCommand = changeSelectedMessageCommand;
ShowExceptionCommand = showExceptionCommand;
ReportMessageCommand = reportMessageCommand;
OpenLink = this.CreateCommand(arg => new NetworkOperations().Browse(SequenceDiagramDocumentationUrl));
ExportDiagramCommand = this.CreateCommand(() => ExportToPng(view), m => m.HasItems);
DiagramLegend = diagramLegend;
DiagramItems = new DiagramItemCollection();
HeaderItems = new DiagramItemCollection();
settings = settingsProvider.GetSettings <SequenceDiagramSettings>();
ShowLegend = settings.ShowLegend;
}
protected override void OnViewLoaded(object view)
{
base.OnViewLoaded(view);
this.view = (SequenceDiagramView)view;
}