void dg_Area_Drop(object sender, DragEventArgs e)
{
if (!e.Data.GetDataPresent(typeof(object)))
{
return;
}
//how to get dragged data by its type
var pos = dg_zoomctrl.TranslatePoint(e.GetPosition(dg_zoomctrl), dg_Area);
var data = new DataVertex();
ThemedDataStorage.FillDataVertex(data);
dg_Area.LogicCore.Graph.AddVertex(data);
var vc = new VertexControl(data);
dg_Area.AddVertex(data, vc);
GraphAreaBase.SetX(vc, pos.X);
GraphAreaBase.SetY(vc, pos.Y, true);
/*if (dg_Area.VertexList.Count() == 1)
* {
* var of = VisualTreeHelper.GetOffset(vc);
* const int offset = 400;
* dg_zoomctrl.ZoomTo(new Rect(of.X - offset, of.Y - offset, vc.ActualWidth + offset * 2, vc.ActualHeight + offset * 2));
* }
* else dg_zoomctrl.ZoomToFill();*/
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (!(value is int))
{
return(null);
}
return(ThemedDataStorage.GetEditorImageById((int)value));
}
void dg_Area_Drop(object sender, DragEventArgs e)
{
if (!e.Data.GetDataPresent(typeof(object)))
{
return;
}
//how to get dragged data by its type
var pos = dg_zoomctrl.TranslatePoint(e.GetPosition(dg_zoomctrl), dg_Area);
var data = ThemedDataStorage.FillDataVertex(new DataVertex());
var vc = new VertexControl(data);
vc.SetPosition(pos);
dg_Area.AddVertexAndData(data, vc);
}
void dg_addvertex_Click(object sender, RoutedEventArgs e)
{
var data = ThemedDataStorage.FillDataVertex(new DataVertex());
dg_Area.AddVertexAndData(data, new VertexControl(data));
//we have to check if there is only one vertex and set coordinates manulay
//because layout algorithms skip all logic if there are less than two vertices
if (dg_Area.VertexList.Count == 1)
{
dg_Area.VertexList.First().Value.SetPosition(0, 0);
dg_Area.UpdateLayout(); //update layout to update vertex size
}
else
{
dg_Area.RelayoutGraph(true);
}
dg_zoomctrl.ZoomToFill();
}
private void tg_but_randomgraph_Click(object sender, RoutedEventArgs e)
{
var graph = ShowcaseHelper.GenerateDataGraph(ShowcaseHelper.Rand.Next(10, 20));
foreach (var item in graph.Vertices)
{
ThemedDataStorage.FillDataVertex(item);
}
foreach (var item in graph.Edges)
{
item.ToolTipText = string.Format("{0} -> {1}", item.Source.Name, item.Target.Name);
}
//TIP: trick to disable zoomcontrol behaviour when it is performing fill animation from top left zoomed corner
//instead we will fill-animate from maximum zoom distance
//tg_zoomctrl.Zoom = 0.01; //disable zoom control auto fill animation by setting this value
tg_Area.GenerateGraph(graph, tg_edgeMode.SelectedIndex == 0);
if (tg_Area.LogicCore.AsyncAlgorithmCompute)
{
tg_loader.Visibility = Visibility.Visible;
}
}
