void gViewer_ObjectUnderMouseCursorChanged(object sender, ObjectUnderMouseCursorChangedEventArgs e) {
selectedObject = e.OldObject != null ? e.OldObject.DrawingObject : null;
if (selectedObject != null) {
if (selectedObject is Edge)
(selectedObject as Edge).Attr = selectedObjectAttr as EdgeAttr;
else if (selectedObject is Node)
(selectedObject as Node).Attr = selectedObjectAttr as NodeAttr;
selectedObject = null;
}
if (gViewer.SelectedObject == null) {
label1.Text = "No object under the mouse";
this.gViewer.SetToolTip(toolTip1, "");
} else {
selectedObject = gViewer.SelectedObject;
Edge edge = selectedObject as Edge;
if (edge != null) {
selectedObjectAttr = edge.Attr.Clone();
edge.Attr.Color = Microsoft.Msagl.Drawing.Color.Magenta;
//here we can use e.Attr.Id or e.UserData to get back to the user data
this.gViewer.SetToolTip(this.toolTip1, String.Format("edge from {0} {1}", edge.Source, edge.Target));
} else if (selectedObject is Node) {
selectedObjectAttr = (gViewer.SelectedObject as Node).Attr.Clone();
(selectedObject as Node).Attr.Color = Microsoft.Msagl.Drawing.Color.Magenta;
//here you can use e.Attr.Id to get back to your data
this.gViewer.SetToolTip(toolTip1, String.Format("node {0}", (selectedObject as Node).Attr.Id));
}
label1.Text = selectedObject.ToString();
}
gViewer.Invalidate();
}
void GvObjectUnderMouseCursorChanged(object sender, ObjectUnderMouseCursorChangedEventArgs e) {
SetStatusText();
}
void viewer_ObjectUnderMouseCursorChanged(object sender, Microsoft.Msagl.Drawing.ObjectUnderMouseCursorChangedEventArgs e)
{
}
void graphViewer_ObjectUnderMouseCursorChanged(object sender, ObjectUnderMouseCursorChangedEventArgs e)
{
var node = graphViewer.ObjectUnderMouseCursor as IViewerNode;
if (node != null) {
var drawingNode = (Node) node.DrawingObject;
statusTextBox.Text = drawingNode.Label.Text;
}
else {
var edge = graphViewer.ObjectUnderMouseCursor as IViewerEdge;
if (edge != null)
statusTextBox.Text = ((Edge) edge.DrawingObject).SourceNode.Label.Text + "->" +
((Edge) edge.DrawingObject).TargetNode.Label.Text;
else
statusTextBox.Text = "No object";
}
}
void ViewerObjectUnderMouseCursorChanged(object sender, ObjectUnderMouseCursorChangedEventArgs e) {
if (TargetPort != null) {
viewer.RemoveTargetPortEdgeRouting();
TargetPort = null;
}
}
void UnconditionalHit(MouseEventArgs args, EntityFilterDelegate filter)
{
System.Drawing.Point point = args != null
? new System.Drawing.Point(args.X, args.Y)
: DrawingPanel.PointToClient(MousePosition);
object old = selectedDObject;
if (bBNode == null && DGraph != null)
bBNode = DGraph.BBNode;
if (bBNode != null) {
Geometry geometry = bBNode.Hit(ScreenToSource(point), GetHitSlack(), filter);
selectedDObject = geometry == null ? null : geometry.dObject;
if (old != selectedDObject) {
SetSelectedObject(selectedDObject);
if (ObjectUnderMouseCursorChanged != null) {
var changedArgs = new ObjectUnderMouseCursorChangedEventArgs((IViewerObject) old,
selectedDObject);
ObjectUnderMouseCursorChanged(this, changedArgs);
}
}
}
}
static void DisplayGeometryGraph_ObjectUnderMouseCursorChanged(object sender, ObjectUnderMouseCursorChangedEventArgs e) {
var gv = (GViewer)sender;
Form form = (Form) gv.Parent;
System.Windows.Forms.Label label = null;
foreach (var l in form.Controls) {
label = l as System.Windows.Forms.Label;
if (label != null)
break;
}
var selObj = gv.SelectedObject;
if (selObj == null)
label.Text = "no object";
else
label.Text = selObj.ToString();
}
/// <summary>
/// Event handler for when the mouse cursor changes.
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">ObjectUnderMouseCursorChangedEventArgs</param>
void ViewerObjectUnderMouseCursorChanged(object sender,
ObjectUnderMouseCursorChangedEventArgs e)
{
}
void GViewerObjectUnderMouseCursorChanged(object sender, ObjectUnderMouseCursorChangedEventArgs e) {
IViewerObject underCursor = gViewer.ObjectUnderMouseCursor;
object sel = underCursor == null ? null : underCursor.DrawingObject;
if (sel is Node) {
var n = sel as Node;
selection.Text = n.Id;
}
else if (sel is Edge) {
var edge = sel as Edge;
selection.Text = edge.Source + "->" + edge.Target;
}
else
selection.Text = "";
}
void GViewerObjectUnderMouseCursorChanged(object sender, ObjectUnderMouseCursorChangedEventArgs e)
{
selectedObject = e.OldObject != null ? e.OldObject.DrawingObject : null;
if (selectedObject != null) {
RestoreSelectedObjAttr();
gViewer.Invalidate(e.OldObject);
selectedObject = null;
}
if (gViewer.SelectedObject == null) {
label1.Text = "No object under the mouse";
gViewer.SetToolTip(toolTip1, "");
} else {
selectedObject = gViewer.SelectedObject;
var edge = selectedObject as Edge;
if (edge != null) {
selectedObjectAttr = edge.Attr.Clone();
edge.Attr.Color = Color.Blue;
gViewer.Invalidate(e.NewObject);
// here we can use e.Attr.Id or e.UserData to get back to the user data
gViewer.SetToolTip(toolTip1, String.Format("edge from {0} to {1}", edge.Source, edge.Target));
} else if (selectedObject is Microsoft.Msagl.Drawing.Node) {
selectedObjectAttr = (gViewer.SelectedObject as Microsoft.Msagl.Drawing.Node).Attr.Clone();
(selectedObject as Microsoft.Msagl.Drawing.Node).Attr.Color = Color.Green;
// // here you can use e.Attr.Id to get back to your data
gViewer.SetToolTip(toolTip1,
String.Format("node {0}",
(selectedObject as Microsoft.Msagl.Drawing.Node).Attr.Id));
gViewer.Invalidate(e.NewObject);
}
label1.Text = selectedObject.ToString();
}
}
