private void DiagramImage_MouseMove(object sender, MouseEventArgs e)
{
if (sender is Image image && e.LeftButton == MouseButtonState.Pressed)
{
ObservableDiagram od = VM.ObservableDiagram;
IntegrationUtils.DiagramToDragDrop(image, od);
}
}
private bool UpdateCursorPosition()
{
ObservableDiagram od = VM.ObservableDiagram;
if (null != od)
{
Point p = MouseUtils.CorrectGetPosition(DiagramImage);
od.CursorX = p.X;
od.CursorY = p.Y;
return(od.ValidCommandsAtCursor);
}
return(false);
}
private bool UpdateCursorPosition()
{
ObservableDiagram od = ((DiagramEditorViewModel)(DataContext)).ObservableDiagram as ObservableDiagram;
if (null != od)
{
Point p = MouseUtils.CorrectGetPosition(DiagramImage);
od.CursorX = p.X;
od.CursorY = p.Y;
return(od.ValidCommandsAtCursor);
}
return(false);
}
void ResultsListView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
foreach (object item in e.AddedItems)
{
ObservableDiagram od = item as ObservableDiagram;
VM.SelectedResults.Add(od);
}
foreach (object item in e.RemovedItems)
{
ObservableDiagram od = item as ObservableDiagram;
VM.SelectedResults.Remove(od);
}
}
public static void DiagramToClipboard(ObservableDiagram diagram, float scaleFactor)
{
if (null == diagram)
{
throw new ArgumentNullException(nameof(diagram));
}
DataObject data = new DataObject();
AddImageFormats(data, diagram, scaleFactor);
Clipboard.SetDataObject(data, true);
Clipboard.Flush();
}
public static void DiagramToDragDrop(DependencyObject dragSource, ObservableDiagram diagram)
{
if (null == dragSource)
{
throw new ArgumentNullException(nameof(dragSource));
}
if (null == diagram)
{
throw new ArgumentNullException(nameof(diagram));
}
DataObject data = new DataObject();
AddImageFormats(data, diagram, 1.0f);
DragDrop.DoDragDrop(dragSource, data, DragDropEffects.Copy | DragDropEffects.Move);
}
void DiagramsListView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
ObservableDiagramLibraryNode selectedNode = VM.SelectedNode;
if (null != selectedNode)
{
foreach (object item in e.AddedItems)
{
ObservableDiagram od = item as ObservableDiagram;
selectedNode.SelectedDiagrams.Add(od);
}
foreach (object item in e.RemovedItems)
{
ObservableDiagram od = item as ObservableDiagram;
selectedNode.SelectedDiagrams.Remove(od);
}
}
}
private static void AddImageFormats(DataObject data, ObservableDiagram diagram, float scaleFactor)
{
Bitmap bmp = ImageUtils.SvgTextToBitmap(diagram.SvgText, diagram.TotalWidth, diagram.TotalHeight, scaleFactor);
// Standard bitmap, no transparency
data.SetData(DataFormats.Bitmap, ImageUtils.AddBackground(bmp, Background.White));
// As PNG
data.SetData("PNG", ImageUtils.BitmapToPngStream(bmp));
// As EMF
data.SetData(DataFormats.EnhancedMetafile, ImageUtils.BitmapToMetafileStream(bmp));
// As PNG temp file
if (GetEnhancedCopy())
{
data.SetFileDropList(new StringCollection {
ImageUtils.BitmapToPngTempFile(bmp, diagram.Title)
});
}
}
protected override Task ExportDiagramAsync(int diagramIndex)
{
return(Task.Factory.StartNew(() =>
{
try
{
ObservableDiagram od = DiagramsToExport[diagramIndex];
string svgText = od.SvgText;
int width = od.TotalWidth;
int height = od.TotalHeight;
string filePath = GetFullFilePath(diagramIndex, OverwriteFiles);
ImageUtils.ExportImageFile(svgText, width, height, ExportFormat, ScaleFactor, filePath);
_createdFiles.Add(filePath);
}
catch (Exception ex)
{
ExceptionUtils.HandleException(ex);
}
}));
}
public DiagramEditorViewModelExtended(ObservableDiagram diagram, bool isNew) : base(diagram, isNew)
{
}
public void DiagramToClipboard(ObservableDiagram diagram, float scaleFactor)
{
IntegrationUtils.DiagramToClipboard(diagram, scaleFactor);
}
