private void GVGraphView_MouseDown(object sender, MouseEventArgs e)
{
StopTextEdit();
p_context.mouseDownPoint.X = e.X;
p_context.mouseDownPoint.Y = e.Y;
p_context.mouseMovePoint = p_context.mouseDownPoint;
p_context.logDownPoint = p_context.ConvertClientToLogical(e.X, e.Y);
p_context.logMovePoint = p_context.logDownPoint;
p_context.mouseState = GVGraphViewMouseState.Down;
// find if some object is clicked
p_context.MovedObject = null;
p_context.ActiveTracker = FindActiveTracker(p_context.mouseDownPoint);
if (p_context.ActiveTracker != null)
{
p_context.ActiveTracker.OnTouchBegin(p_context);
}
else
{
p_context.downObject = Graph.Objects.FindObjectContainingClientPoint(p_context.mouseDownPoint);
if (p_context.downObject != null)
{
GVGraphObject go = p_context.downObject;
p_context.downObjectHotPointOffset.X = e.X - go.X;
p_context.downObjectHotPointOffset.Y = e.Y - go.Y;
}
}
Invalidate();
}
private void GVGraphView_MouseDoubleClick(object sender, MouseEventArgs e)
{
if (Graph != null && GraphDelegate != null)
{
GVGraphObject go = Graph.Objects.FindObjectContainingClientPoint(new PointF(e.X, e.Y));
GraphDelegate.OnObjectDoubleClick(p_context, go);
}
}
public GVGraphObject Add(GVGraphObject entity)
{
entity.Id = GetNextId();
entity.X = 0;
entity.Y = GetMaxY() + 120;
Objects.Add(entity);
return(entity);
}
public virtual void setReference(int tag, object obj)
{
switch (tag)
{
case 14:
ParentObject = (GVGraphObject)obj;
break;
}
}
public List <GVGraphConnection> FindTargeted(GVGraphObject oid)
{
List <GVGraphConnection> list = new List <GVGraphConnection>();
foreach (GVGraphConnection gv in this)
{
if (gv.Target == oid)
{
list.Add(gv);
}
}
return(list);
}
public GVGraphObject FindObjectContainingClientPoint(float cX, float cY)
{
GVGraphObject start = null;
GVGraphObject end = this;
do
{
start = end;
end = start.Objects.FindObjectContainingClientPoint(cX, cY);
}while (end != null);
return(start);
}
public void ResetPoints()
{
mouseDownPoint = PointF.Empty;
mouseMovePoint = PointF.Empty;
mouseUpPoint = PointF.Empty;
logDownPoint = PointF.Empty;
logMovePoint = PointF.Empty;
logUpPoint = PointF.Empty;
mouseState = GVGraphViewMouseState.None;
downObject = null;
downObjectHotPointOffset = PointF.Empty;
TrackedObject = null;
upObject = null;
ActiveTracker = null;
}
private void GVGraphView_MouseMove(object sender, MouseEventArgs e)
{
if (p_context.mouseState != GVGraphViewMouseState.None)
{
p_context.mouseMovePoint.X = e.X;
p_context.mouseMovePoint.Y = e.Y;
p_context.logMovePoint = p_context.ConvertClientToLogical(e.X, e.Y);
p_context.TrackedObject = p_graph.Objects.FindObjectContainingClientPoint(p_context.mouseMovePoint);
// test if we should transfer to MOVING status
if (p_context.mouseState == GVGraphViewMouseState.Down)
{
float diff = Math.Abs(e.X - p_context.mouseDownPoint.X) + Math.Abs(e.Y + p_context.mouseDownPoint.Y);
if (diff >= 6)
{
p_context.mouseState = GVGraphViewMouseState.Moved;
}
}
if (p_context.mouseState == GVGraphViewMouseState.Moved)
{
if (p_context.ActiveTracker != null)
{
p_context.ActiveTracker.OnTrack(p_context);
}
else if (p_context.MovedObject == null)
{
// move whole diagram
p_context.DiagramTempOffset.X = e.X - p_context.mouseDownPoint.X;
p_context.DiagramTempOffset.Y = e.Y - p_context.mouseDownPoint.Y;
}
}
Invalidate();
}
if (p_context.mouseState == GVGraphViewMouseState.None)
{
if (OnItemHover != null)
{
p_context.mouseMovePoint.X = e.X;
p_context.mouseMovePoint.Y = e.Y;
GeneralEventArgs args = new GeneralEventArgs();
GVGraphObject go = Graph.Objects.FindObjectContainingClientPoint(p_context.mouseMovePoint);
if (go != null)
{
args.UserInfo["object"] = go;
}
else
{
GVTrackerBase tb = FindActiveTracker(p_context.mouseMovePoint);
if (tb != null)
{
args.UserInfo["tracker"] = tb;
}
}
OnItemHover(this, args);
}
}
}