private void RenderingCanvas_KeyDown(object sender, KeyEventArgs e)
{
ClearErrorMessage();
if (e.KeyCode == Keys.Insert)
{
_editor.ForEachSelectedCell(AttemptInsertObject);
_editor.ClearSelection();
}
else if (e.KeyCode == Keys.Delete)
{
_editor.DeleteSelectedTileObjects();
_editor.ClearSelection();
}
}
private void RenderingCanvas_MouseUp(object sender, MouseEventArgs e)
{
if (_editor == null)
{
return;
}
Point?firstSelectionPoint = _firstSelectionPoint;
_firstSelectionPoint = null;
_lastMousePosition = null;
if (firstSelectionPoint == null)
{
return;
}
if (e.Button == MouseButtons.Right)
{
if (_editor.SelectedCells.Length > 0)
{
_editor?.ClearSelection();
}
else
{
ShowContextMenu(e.X, e.Y);
}
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
int firstX = firstSelectionPoint.Value.X;
int firstY = firstSelectionPoint.Value.Y;
int lastX = e.X;
int lastY = e.Y;
if (firstX > lastX)
{
int t = lastX;
lastX = firstX;
firstX = t;
}
if (firstY > lastY)
{
int t = lastY;
lastY = firstY;
firstY = t;
}
int delta = lastX - firstX + lastY - firstY;
if (delta > MouseGrabThreshold)
{
_editor.SelectRect(_editor.GetCellRect(firstX, firstY, lastX, lastY));
}
else
{
AttemptInsertObject(lastX, lastY);
}
}
