protected override IMouseAction GetMouseAction(MouseEventArgs e, Keys modifierKeys, MapToolContext ctx)
{
if (modifierKeys.HasFlag(Keys.Alt))
{
return(new PanZoomMouseAction());
}
else
{
Point tilePt = ctx.ToTile(e.Location);
// If the cursor is not on a selected tile then clear the selection and select
// the tile directly under the cursor.
if (!selectionService.SelectedItems.Any(i => i.Bounds.Contains(tilePt)))
{
selectionService.ClearSelection();
selectionService.ModifySelection(e.Location, ctx, SelectionAction.Add);
}
if (selectionService.SelectedItems.Any())
{
return(new MoveItemsDragAction(
selectionRenderer,
selectionService,
historyService));
}
return(null);
}
}
public void OnMouseDown(MouseEventArgs e, MapToolContext ctx)
{
if (e.Button == MouseButtons.Left)
{
Point tilePt = ctx.ToTile(e.Location);
// If the cursor is not on a selected tile then clear the selection and select
// the tile directly under the cursor.
if (!selectionService.SelectedItems.Any(i => i.Bounds.Contains(tilePt)))
{
selectionService.ClearSelection();
selectionService.ModifySelection(e.Location, ctx, SelectionAction.Add);
}
if (selectionService.SelectedItems.Any())
{
this.isDragging = true;
this.dragStart = e.Location;
}
}
}