// 鼠标按下
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
// 获取当前顺序图面板
SequenceDiagram_P_VM nowSDPVM = (SequenceDiagram_P_VM)ResourceManager.mainWindowVM.SelectedItem.SelectedItem.SelectedItem;
// 如果有连线,那么要做的是删除连线
if (ConnectorVM.ConnectionVM != null)
{
nowSDPVM.BreakSeqMessageVM(ConnectorVM);
ResourceManager.mainWindowVM.Tips = "删除了消息传递关系";
}
// 如果已经是活动锚点,要清除活动状态
else if (nowSDPVM.ActiveConnector == ConnectorVM) // 也可用ConnectorVM.IsActive
{
ConnectorVM.IsActive = false;
nowSDPVM.ActiveConnector = null;
ResourceManager.mainWindowVM.Tips = "清除了锚点的预连线状态";
}
// 否则,即是空闲锚点
// 如果还没有活动锚点,设置其为活动锚点
else if (nowSDPVM.ActiveConnector == null)
{
nowSDPVM.ActiveConnector = ConnectorVM;
ConnectorVM.IsActive = true;
ResourceManager.mainWindowVM.Tips = "设置锚点为预连线锚点";
}
// 至此,说明已经有一个活动锚点了,且当前锚点是另一个空闲锚点,这时要从活动锚点连线到此锚点
else
{
// 创建时要传入SeqMessage类型
nowSDPVM.CreateSeqMessageVM(nowSDPVM.ActiveConnector, ConnectorVM, nowSDPVM.SeqMessage);
// 清除活动锚点
nowSDPVM.ActiveConnector.IsActive = false;
nowSDPVM.ActiveConnector = null;
ResourceManager.mainWindowVM.Tips = "创建了新的" + nowSDPVM.SeqMessage + "传递关系";
}
e.Handled = true;
}
// 关闭窗体
private void close_event(object sender, CancelEventArgs e)
{
SequenceDiagram_P_VM seqDiagramP_VM = (SequenceDiagram_P_VM)ResourceManager.mainWindowVM.SelectedItem.SelectedItem.SelectedItem;
seqDiagramP_VM.PanelEnabled = true;
}
