public override uint MouseClick(MouseEventArgs e, GL_ControlBase control)
{
if (e.Button == MouseButtons.Right)
{
linkDragMode = LinkDragMode.None;
return(REDRAW);
}
if (linkManager.hoveredConnection != null)
{
SelectedConnection = linkManager.hoveredConnection;
UpdateSelection(REDRAW);
return(REDRAW);
}
else
{
if (SelectedConnection != null)
{
SelectedConnection = null;
return(REDRAW);
}
return(0);
}
}
public override uint MouseDown(MouseEventArgs e, GL_ControlBase control)
{
if (e.Button != MouseButtons.Left)
{
linkDragMode = LinkDragMode.None;
return(0);
}
if (WinInput.Keyboard.IsKeyDown(WinInput.Key.LeftCtrl))
{
SelectedConnection = new LinkConnection(Hovered3dObject, Hovered3dObject, Hovered3dObject.Links?.Keys.First() ?? "UnnamedConnection");
linkDragMode = LinkDragMode.Dest;
}
else if (SelectedConnection != null)
{
SceneDrawState.ZoneTransform = EditZoneTransform;
//Check if mouse is on the Dest Point
Point linkingPoint = GL_Control.ScreenCoordFor(SelectedConnection.Dest.GetLinkingPoint(this));
Point nextToLinkingPoint = GL_Control.ScreenCoordFor(SelectedConnection.Dest.GetLinkingPoint(this) + control.InvertedRotationMatrix.Row0 * 0.25f);
Vector2 diff = new Vector2(e.X, e.Y) - new Vector2(linkingPoint.X, linkingPoint.Y);
Vector2 nextToDiff = new Vector2(nextToLinkingPoint.X, nextToLinkingPoint.Y) - new Vector2(linkingPoint.X, linkingPoint.Y);
if (diff.LengthSquared < nextToDiff.LengthSquared)
{
linkDragMode = LinkDragMode.Dest;
return(0);
}
//Check if mouse is on the Source Point
linkingPoint = GL_Control.ScreenCoordFor(SelectedConnection.Source.GetLinkingPoint(this));
nextToLinkingPoint = GL_Control.ScreenCoordFor(SelectedConnection.Source.GetLinkingPoint(this) + control.InvertedRotationMatrix.Row0 * 0.25f);
diff = new Vector2(e.X, e.Y) - new Vector2(linkingPoint.X, linkingPoint.Y);
nextToDiff = new Vector2(nextToLinkingPoint.X, nextToLinkingPoint.Y) - new Vector2(linkingPoint.X, linkingPoint.Y);
if (diff.LengthSquared < nextToDiff.LengthSquared)
{
linkDragMode = LinkDragMode.Source;
return(0);
}
linkDragMode = LinkDragMode.None;
}
return(0);
}
public override void DeleteSelected()
{
if (SelectedConnection == null)
{
return;
}
AddToUndo(new RevertableConnectionDeletion(
SelectedConnection.Source,
SelectedConnection.Dest,
SelectedConnection.Name));
RemoveConnection(
SelectedConnection.Source,
SelectedConnection.Dest,
SelectedConnection.Name);
SelectedConnection = null;
UpdateSelection(REDRAW);
}
public override uint MouseUp(MouseEventArgs e, GL_ControlBase control)
{
if (linkDragMode != LinkDragMode.None && Hovered3dObject != null)
{
if (SelectedConnection.Source == SelectedConnection.Dest) //just created
{
if (SelectedConnection.Source == Hovered3dObject)
{
SelectedConnection = null;
}
else
{
AddConnection(SelectedConnection.Source, Hovered3dObject, SelectedConnection.Name);
UpdateLinkDestinations();
AddToUndo(new RevertableConnectionAddition(SelectedConnection.Source, Hovered3dObject, SelectedConnection.Name));
SelectedConnection.Dest = Hovered3dObject;
UpdateSelection(0);
}
}
else if (linkDragMode == LinkDragMode.Source)
{
ChangeSelectedConnection(Hovered3dObject, SelectedConnection.Dest, SelectedConnection.Name);
}
else
{
ChangeSelectedConnection(SelectedConnection.Source, Hovered3dObject, SelectedConnection.Name);
}
}
linkDragMode = LinkDragMode.None;
return(base.MouseUp(e, control) | REDRAW);
}
private void ChangeSelectedConnection(I3dWorldObject newSource, I3dWorldObject newDest, string newName)
{
if (newSource == SelectedConnection.Source && newDest == SelectedConnection.Dest && newName == SelectedConnection.Name)
{
return; //nothing has changed
}
if (newSource == newDest)
{
return; //a link can't load to itself
}
if (newName == "")
{
return; //a links name can't be empty
}
if (newSource is Rail)
{
return; //Rails can't have links
}
AddToUndo(new RevertableConnectionChange(
newSource, newDest, newName,
SelectedConnection.Source,
SelectedConnection.Dest,
SelectedConnection.Name
));
RemoveConnection(
SelectedConnection.Source,
SelectedConnection.Dest,
SelectedConnection.Name
);
AddConnection(newSource, newDest, newName);
UpdateLinkDestinations();
SelectedConnection = new LinkConnection(newSource, newDest, newName);
}