/// <summary>
///
/// </summary>
/// <param name="obj"></param>
internal void DefaultShowEditor(DrawingObject obj) {
m_EditingObject = obj;
if (obj != null)
m_LabelBox.Enabled = true;
var node = obj as DrawingNode;
if (node != null && node.Label != null)
m_LabelBox.Text = node.Label.Text;
else {
var edge = obj as Edge;
if (edge != null && edge.Label != null)
m_LabelBox.Text = edge.Label.Text;
}
Controls.Add(m_LabelBox);
if (obj != null)
m_LabelBox.Focus();
}
/// <summary>
///
/// </summary>
internal void DefaultCloseEditor() {
m_LabelBox.Enabled = false;
m_LabelBox.Text = "";
m_EditingObject = null;
}
FrameworkElement CreateViewboxForDrawingObj(DrawingObject drawingObj) {
if (drawingObj is Subgraph)
return null; //todo: add Label support later
var labeledObj = drawingObj as Drawing.ILabeledObject;
if (labeledObj == null)
return null;
var drawingLabel = labeledObj.Label;
if (drawingLabel == null)
return null;
Viewbox viewbox = null;
if (_graphCanvas.Dispatcher.CheckAccess())
viewbox = CreateViewbox(CreateTextBlock(drawingLabel));
else
_graphCanvas.Dispatcher.Invoke(() => viewbox = CreateViewbox(CreateTextBlock(drawingLabel)));
return viewbox;
}
void AssignLabelWidthHeight(Microsoft.Msagl.Core.Layout.ILabeledObject labeledGeomObj,
DrawingObject drawingObj)
{
if (graphObjectsToFrameworkElements.ContainsKey(drawingObj)) {
FrameworkElement fe = graphObjectsToFrameworkElements[drawingObj];
labeledGeomObj.Label.Width = fe.Width;
labeledGeomObj.Label.Height = fe.Height;
}
}
FrameworkElement CreateTextBlockForDrawingObj(DrawingObject drawingObj) {
Func<DrawingObject, FrameworkElement> registeredCreator;
if (registeredCreators.TryGetValue(drawingObj, out registeredCreator))
return registeredCreator(drawingObj);
if (drawingObj is Subgraph)
return null; //todo: add Label support later
var labeledObj = drawingObj as ILabeledObject;
if (labeledObj == null)
return null;
var drawingLabel = labeledObj.Label;
if (drawingLabel == null)
return null;
TextBlock textBlock = null;
if (_graphCanvas.Dispatcher.CheckAccess())
textBlock = CreateTextBlock(drawingLabel);
else
_graphCanvas.Dispatcher.Invoke(() => textBlock = CreateTextBlock(drawingLabel));
return textBlock;
}
FrameworkElement CreateDefaultFrameworkElementForDrawingObject(DrawingObject drawingObject) {
lock (this) {
var textBlock = CreateTextBlockForDrawingObj(drawingObject);
if (textBlock != null)
drawingObjectsToFrameworkElements[drawingObject] = textBlock;
return textBlock;
}
}
public Func<DrawingObject, FrameworkElement> GetLabelCreator(DrawingObject drawingObject) {
return registeredCreators[drawingObject];
}
public void UnregisterLabelCreator(DrawingObject drawingObject) {
registeredCreators.Remove(drawingObject);
}
// void CreateFrameworkElementForEdgeLabel(DrawingEdge edge) {
// var textBlock = CreateTextBlockForDrawingObj(edge);
// if (textBlock == null) return;
// drawingGraphObjectsToTextBoxes[edge] = textBlock;
// textBlock.Tag = new VLabel(edge, textBlock);
// }
public void RegisterLabelCreator(DrawingObject drawingObject, Func<DrawingObject, FrameworkElement> func) {
registeredCreators[drawingObject] = func;
}
void AssignLabelWidthHeight(Core.Layout.ILabeledObject labeledGeomObj,
DrawingObject drawingObj) {
if (drawingObjectsToFrameworkElements.ContainsKey(drawingObj)) {
FrameworkElement fe = drawingObjectsToFrameworkElements[drawingObj];
var size = fe.MeasureDesiredSize();
labeledGeomObj.Label.Width = size.Width;
labeledGeomObj.Label.Height = size.Height;
}
}
private void ReadLabel(DrawingObject parent) {
CheckToken(Tokens.Label);
bool hasLabel = !this.xmlReader.IsEmptyElement;
if (hasLabel) {
XmlRead();
Label label = new Label {
Text = ReadStringElement(Tokens.Text),
FontName = ReadStringElement(Tokens.FontName),
FontColor = ReadColorElement(Tokens.FontColor),
FontStyle = TokenIs(Tokens.FontStyle) ? (FontStyle)ReadIntElement(Tokens.FontStyle) : FontStyle.Regular,
FontSize = ReadDoubleElement(Tokens.FontSize),
Width = ReadDoubleElement(Tokens.Width),
Height = ReadDoubleElement(Tokens.Height),
Owner = parent
};
((ILabeledObject) parent).Label = label;
ReadEndElement();
}
else {
var node = parent as Node;
if (node != null){//we still need a label!
Label label = new Label {
Text = node.Id,
Owner = parent
};
((ILabeledObject) parent).Label = label;
}
xmlReader.Skip();
}
}
