public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var graph = value as IGraph;
if (graph == null)
{
return(null);
}
graphControl.Graph = graph;
graphControl.FitGraphBounds();
var size = graphControl.ContentRect;
var cc = new ContextConfigurator(graphControl.ContentRect);
cc.Scale = Math.Min(cc.CalculateScaleForWidth(size.Width), cc.CalculateScaleForHeight(size.Height));
var renderContext = cc.CreateRenderContext(graphControl);
Transform transform = cc.CreateWorldToIntermediateTransform();
Geometry clip = cc.CreateClip();
var visualContent = graphControl.ExportContent(renderContext);
var container = new VisualGroup {
Transform = transform,
Clip = clip,
Children = { visualContent }
};
var brush = new VisualBrush(container);
return(new DrawingImage(new GeometryDrawing(brush, null, new RectangleGeometry(new Rect(0, 0, size.Width, size.Height)))));
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
INode listBoxNode = value as INode;
if (listBoxNode != null)
{
graphControl.Graph.Clear();
var size = FlowChartNodeStyle.GetNodeTypeSize(listBoxNode);
var node = graphControl.Graph.CreateNode(new RectD(0, 0, size.Width, size.Height), listBoxNode.Style, listBoxNode.Tag);
double labelHeight = 0;
foreach (var label in listBoxNode.Labels)
{
graphControl.Graph.AddLabel(node, label.Text, label.LayoutParameter, label.Style, label.PreferredSize, label.Tag);
labelHeight = Math.Max(labelHeight, label.GetLayout().Height);
}
graphControl.FitGraphBounds(new InsetsD(5));
ContextConfigurator cc = new ContextConfigurator(graphControl.ContentRect);
var renderContext = cc.CreateRenderContext(graphControl);
Transform transform = cc.CreateWorldToIntermediateTransform();
System.Windows.Media.Geometry clip = cc.CreateClip();
var visualContent = graphControl.ExportContent(renderContext);
VisualGroup container = new VisualGroup()
{
Transform = transform, Clip = clip, Children = { visualContent }
};
VisualBrush brush = new VisualBrush(container);
return(new DrawingImage(new GeometryDrawing(brush, null, new RectangleGeometry(new Rect(0, 0, size.Width, size.Height + labelHeight)))));
}
else
{
return(null);
}
}
protected VisualGroup CreateVisual(GraphControl canvas)
{
RectD rect = canvas.ContentRect;
ContextConfigurator configurator = new ContextConfigurator(rect);
configurator.Margins = new InsetsD(0, 0, 0, 0);
// scale down if necessary
if (ActualHeight > 0 && ActualHeight > 0)
{
if (ActualHeight < rect.Height || ActualWidth < rect.Width)
{
configurator.Scale = Math.Min(this.ActualWidth / rect.Width, this.ActualHeight / rect.Height);
}
RectD bounds = RectD.FromCenter(rect.Center,
new SizeD(this.ActualWidth, this.ActualHeight) * (1 / configurator.Scale));
configurator.WorldBounds = bounds;
}
IRenderContext vc = configurator.CreateRenderContext(canvas);
Transform transform = configurator.CreateWorldToIntermediateTransform();
Visual visual = canvas.ExportContent(vc);
return(new VisualGroup()
{
Children = { visual }, Clip = Clip, Transform = transform
});
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
INode listBoxNode = value as INode;
if (listBoxNode == null)
{
return(null);
}
graphControl.Graph.Clear();
var node = graphControl.Graph.CreateNode(listBoxNode.Layout.ToRectD(), listBoxNode.Style, listBoxNode.Tag);
foreach (var label in listBoxNode.Labels)
{
graphControl.Graph.AddLabel(node, label.Text, label.LayoutParameter,
label.Style, label.PreferredSize, label.Tag);
}
graphControl.FitGraphBounds();
ContextConfigurator cc = new ContextConfigurator(graphControl.ContentRect);
cc.Scale = Math.Min(cc.CalculateScaleForWidth(size.Width), cc.CalculateScaleForHeight(size.Height));
var renderContext = cc.CreateRenderContext(graphControl);
Transform transform = cc.CreateWorldToIntermediateTransform();
System.Windows.Media.Geometry clip = cc.CreateClip();
var visualContent = graphControl.ExportContent(renderContext);
VisualGroup container = new VisualGroup
{
Transform = transform,
Clip = clip,
Children = { visualContent }
};
VisualBrush brush = new VisualBrush(container);
return
(new DrawingImage(new GeometryDrawing(brush, null,
new RectangleGeometry(new Rect(0, 0, size.Width, size.Height)))));
}