private double MeasureWrappedTextWidth(String s, TextBox box, TextBlock block)
{
if (s == null)
{
return(0);
}
TextBlock tb = this.MTB;
if (tb == null)
{
tb = new TextBlock();
this.MTB = tb;
}
// make this TextBlock look like the TextBox
tb.FontFamily = box.FontFamily;
tb.FontStretch = box.FontStretch;
tb.FontStyle = box.FontStyle;
tb.FontWeight = box.FontWeight;
tb.TextAlignment = box.TextAlignment;
//tb.TextDecorations = box.TextDecorations;
tb.TextWrapping = box.TextWrapping;
// or like the TextBlock
tb.MinWidth = block.MinWidth;
tb.MaxWidth = block.MaxWidth;
Part.SetTextAspectRatio(tb, Part.GetTextAspectRatio(block));
// initial text
tb.Text = s;
return(NodePanel.MeasureWrappedTextWidth(tb, new Size(tb.MaxWidth, tb.MaxHeight)));
}
// Find the link data of the Link coming into this Node
// and update the text fields about the arrowhead names.
private void NodePanel_MouseEnter(object sender, MouseEventArgs e)
{
NodePanel np = sender as NodePanel;
if (np == null)
{
return;
}
Node node = VisualTreeHelper.GetParent(np) as Node;
if (node == null)
{
return;
}
Link link = node.LinksInto.FirstOrDefault();
if (link == null)
{
return;
}
MyLinkData mld = link.Data as MyLinkData;
if (mld == null)
{
return;
}
ToArrowheadName.Text = "ToArrow = " + mld.ToArrow.ToString();
FromArrowheadName.Text = "FromArrow = " + mld.FromArrow.ToString();
}
protected override void OnDrag()
{
NodePanel panel = Panel as NodePanel;
if (panel != null)
{
panel.DragContainer(this);
}
}
internal static FrameworkElement AsToolHandle(FrameworkElement elt)
{
if (NodePanel.GetFigure(elt) != NodeFigure.None)
{
return(elt);
}
else
{
return(null);
}
}
public NodePanel(Rect _rect, Graph _graph, GraphEditor _graphEditor, GUISkin _editorSkin, FREditorSettings _settings)
{
firstNodeName = "";
current = this;
//collectedNodes = _collectedNodes;
rect = _rect;
position = new Vector2(rect.x, rect.y);
graph = _graph;
graphEditor = _graphEditor;
editorSkin = _editorSkin;
settings = _settings;
}
internal static FrameworkElement FindToolHandle(DependencyObject v)
{
if (v == null || v is Part)
{
return(null);
}
if (NodePanel.GetFigure(v) != NodeFigure.None)
{
return(v as FrameworkElement);
}
return(FindToolHandle(System.Windows.Media.VisualTreeHelper.GetParent(v)));
}
// Adds individual animations to the locationAnimation StoryBoard.
private void AnimateNode(int key, NodePanel np, Duration duration)
{
if (key < 0)
{
return;
}
if (np == null)
{
return;
}
PointAnimationUsingKeyFrames locationAnimation = new PointAnimationUsingKeyFrames();
double keyTime = 0.0;
// Gets the LinearPointKeyFrames for the PointAnimationUsingKeyFrames.
// Starts at key-1 to account for an initial KeyFrame.
for (int i = key - 1; i < (key + NumberOfNodes - 1); i++)
{
LinearPointKeyFrame lpkf = new LinearPointKeyFrame();
lpkf.KeyTime = TimeSpan.FromSeconds(keyTime);
int nextNodeKeyInt = i + 1;
if (nextNodeKeyInt >= (NumberOfNodes - 1))
{
nextNodeKeyInt = nextNodeKeyInt % (NumberOfNodes - 1);
}
MyNodeData nextNodeData = myDiagram.Model.FindNodeByKey((nextNodeKeyInt)) as MyNodeData;
if (nextNodeData == null || nextNodeData.Location == null)
{
return;
}
lpkf.Value = nextNodeData.Location;
locationAnimation.KeyFrames.Add(lpkf);
// If duration equals TimeSpan.FromSeconds(NumberOfNodes - 1),
// then keyTime increases by 1 with each iteration.
keyTime += ((double)duration.TimeSpan.TotalSeconds) / (NumberOfNodes - 1);
}
LocationStoryBoard.Children.Add(locationAnimation);
Storyboard.SetTarget(locationAnimation, np);
Storyboard.SetTargetProperty(locationAnimation, new PropertyPath(Node.LocationProperty));
}
/// <summary>
/// Show an <see cref="Adornment"/> with <see cref="ToolHandle"/>s at each end of the link's route,
/// if the link is selected and visible.
/// </summary>
/// <param name="part"></param>
/// <remarks>
/// </remarks>
public override void UpdateAdornments(Part part)
{
Link link = part as Link;
if (link == null)
{
return; // no Nodes
}
Adornment adornment = null;
if (link.IsSelected)
{
FrameworkElement selelt = link.Path;
if (selelt != null && Part.IsVisibleElement(selelt))
{
adornment = link.GetAdornment(ToolCategory);
if (adornment == null)
{
Route route = link.Route;
if (route != null)
{
IList <Point> pts = route.Points;
int numpts = route.PointsCount;
if (pts != null && numpts > 2)
{
// This tool's Adornments consists of a LinkPanel containing two ToolHandles.
LinkPanel panel = new LinkPanel();
#if SILVERLIGHT
var h = new System.Windows.Shapes.Path();
#else
var h = new ToolHandle();
#endif
// of course you can customize the appearance of the shift handles here...
NodePanel.SetFigure(h, NodeFigure.Rectangle);
h.Width = 6;
h.Height = 6;
h.Fill = new SolidColorBrush(Colors.Orange);
LinkPanel.SetIndex(h, 0);
LinkPanel.SetFraction(h, 0.5);
if (pts[0].X == pts[1].X && pts[0].Y != pts[1].Y)
{
SetReshapeBehavior(h, ReshapeBehavior.Horizontal);
h.Cursor = System.Windows.Input.Cursors.SizeWE;
}
else if (pts[0].Y == pts[1].Y && pts[0].X != pts[1].X)
{
SetReshapeBehavior(h, ReshapeBehavior.Vertical);
h.Cursor = System.Windows.Input.Cursors.SizeNS;
}
else
{
SetReshapeBehavior(h, ReshapeBehavior.All);
#if !SILVERLIGHT
h.Cursor = System.Windows.Input.Cursors.SizeAll;
#endif
}
panel.Children.Add(h);
#if SILVERLIGHT
h = new System.Windows.Shapes.Path();
#else
h = new ToolHandle();
#endif
NodePanel.SetFigure(h, NodeFigure.Rectangle);
h.Width = 6;
h.Height = 6;
h.Fill = new SolidColorBrush(Colors.Orange);
LinkPanel.SetIndex(h, -1);
LinkPanel.SetFraction(h, 0.5);
SetReshapeBehavior(h, ReshapeBehavior.All);
if (pts[numpts - 1].X == pts[numpts - 2].X && pts[numpts - 1].Y != pts[numpts - 2].Y)
{
SetReshapeBehavior(h, ReshapeBehavior.Horizontal);
h.Cursor = System.Windows.Input.Cursors.SizeWE;
}
else if (pts[numpts - 1].Y == pts[numpts - 2].Y && pts[numpts - 1].X != pts[numpts - 2].X)
{
SetReshapeBehavior(h, ReshapeBehavior.Vertical);
h.Cursor = System.Windows.Input.Cursors.SizeNS;
}
else
{
SetReshapeBehavior(h, ReshapeBehavior.All);
#if !SILVERLIGHT
h.Cursor = System.Windows.Input.Cursors.SizeAll;
#endif
}
panel.Children.Add(h);
adornment = new Adornment();
adornment.AdornedElement = selelt;
adornment.Category = ToolCategory;
adornment.Content = panel; // just provide the FrameworkElement as the Content and as the Visual Child
adornment.LocationSpot = Spot.TopLeft;
}
}
}
if (adornment != null)
{
Point loc = link.GetElementPoint(selelt, Spot.TopLeft);
adornment.Location = loc;
adornment.RotationAngle = link.GetAngle(selelt);
adornment.Remeasure();
}
}
}
link.SetAdornment(ToolCategory, adornment);
}