protected override void OnMouseMove(MouseWithKeysEventArgs e)
{
if (DragState != null)
{
if (!e.IsRightButtonPressed)
{
DragState = null;
Redraw();
return;
}
DragState.Query.DropPoint.Set(e.X, e.Y);
DragState.Query.ShouldCopyInsteadOfMove = e.IsCtrlPressed;
if (!DragState.Query.DragStartpoint.PointWithinDragSize(e.X, e.Y)
|| DragState.DragStarted)
{
DragState.Result = FindDropTarget();
DragState.DragStarted = true;
}
Redraw();
}
}
protected override void OnMouseUp(MouseWithKeysEventArgs e)
{
if (e.Handled == true)
{
return;
}
bool shouldShowPopupMenu = e.IsRightButtonPressed;
using (Redrawer r = new Redrawer(Root))
{
if (DragState != null)
{
if (DragState.Result != null)
{
DragState.Query.ShouldCopyInsteadOfMove = e.IsCtrlPressed;
DragState.Result.DropTargetContainer.AcceptBlocks(
DragState.Query,
DragState.Result);
shouldShowPopupMenu = false;
e.Handled = true;
}
else
{
if (DragState.DragStarted)
{
shouldShowPopupMenu = false;
e.Handled = true;
}
}
DragState = null;
}
if (shouldShowPopupMenu && e.IsRightButtonPressed)
{
Block rightClicked = FindBlockAtPoint(e.X, e.Y);
if (rightClicked != null
&& rightClicked.Menu != null
&& rightClicked.MyControl.HitTest(e.X, e.Y))
{
if (rightClicked.CanGetFocus)
{
rightClicked.SetFocus();
}
MyRootControl.ShowPopupMenu(rightClicked.Menu, e.Location);
e.Handled = true;
}
}
}
}
protected override void OnMouseDown(MouseWithKeysEventArgs e)
{
if (e.Handled == true)
{
return;
}
Block block = FindDraggableBlock(e.X, e.Y);
if (e.IsRightButtonPressed
&& block != null
&& block.Draggable)
{
DragState = new DragInfo(block, e.X, e.Y);
block.SetFocus();
}
else
{
DragState = null;
}
}
