/// <summary>
/// 初始化工具箱
/// </summary>
public void InitToolBox()
{
BaseWorkFlow startWF = WorkFlowFactory.GetWorkFlow(WorkFlowEnum.Start);
startWF.DragStarted += AddModel;
ToolBox.WorkAreaItems.Add(startWF);
BaseWorkFlow processWF = WorkFlowFactory.GetWorkFlow(WorkFlowEnum.Process);
ToolBox.WorkAreaItems.Add(processWF);
processWF.DragStarted += AddModel;
BaseWorkFlow decisionWF = WorkFlowFactory.GetWorkFlow(WorkFlowEnum.Decision);
ToolBox.WorkAreaItems.Add(decisionWF);
decisionWF.DragStarted += AddModel;
BaseWorkFlow endWF = WorkFlowFactory.GetWorkFlow(WorkFlowEnum.End);
endWF.DragStarted += AddModel;
ToolBox.WorkAreaItems.Add(endWF);
BaseWorkFlow lineWF = WorkFlowFactory.GetWorkFlow(WorkFlowEnum.Line);
lineWF.DragStarted += AddModel;
ToolBox.WorkAreaItems.Add(lineWF);
BaseWorkFlow polyLineWF = WorkFlowFactory.GetWorkFlow(WorkFlowEnum.PolyLine);
polyLineWF.DragStarted += AddModel;
ToolBox.WorkAreaItems.Add(polyLineWF);
}
/// <summary>
/// 递归子节点，添加xml子节点
/// </summary>
/// <param name="workFlows"></param>
/// <param name="xmlDocument"></param>
/// <param name="xmlElement"></param>
private static void AddChildXml(WorkAreaModel workArea, XmlDocument xmlDocument, XmlElement xmlElement)
{
foreach (IWorkFlowAttributes item in workArea.WorkAreaItems) //遍历工作区所有对象
{
Type type = item.GetType();
// var props = type.GetProperties();
XmlElement itemNode = xmlDocument.CreateElement(string.Empty, type.Name, string.Empty); //新建节点
foreach (string propName in item.Attributes) //遍历需要序列化的属性
{
if (propName == "ChildWorkFlow")
{
BaseWorkFlow wf = item as BaseWorkFlow;
if (wf.ChildWorkFlow != null) //如果存在子流程则递归子流程
{
AddChildXml(wf.ChildWorkFlow.WorkArea, xmlDocument, itemNode);
}
}
else
{ //不存在则设置xml节点属性
itemNode.SetAttribute(propName, type.GetProperty(propName).GetValue(item, null).ToString()); //设置节点属性
}
}
xmlElement.AppendChild(itemNode); //附加对象节点到根节点
}
}
private static void LoadChildNode(WorkAreaModel workArea, XmlElement xmlElement)
{
XmlNodeList xmlNodeList = xmlElement.ChildNodes;
foreach (XmlElement xe in xmlNodeList) //遍历模块节点
{
Assembly assembly = Assembly.GetExecutingAssembly(); // 获取当前程序集
BaseWorkFlow obj = assembly.CreateInstance("WPFDrag.Themes." + xe.Name) as BaseWorkFlow; //反射新建实例
Type type = obj.GetType();
var props = type.GetProperties();
foreach (var prop in props)
{
if (xe.HasAttribute(prop.Name)) //判断是否有该属性
{
if (prop.Name == "Points")
{
PointCollection pc = PointCollection.Parse(xe.GetAttribute("Points")); //设置复杂属性
prop.SetValue(obj, pc);
}
else
{
prop.SetValue(obj, Convert.ChangeType(xe.GetAttribute(prop.Name), prop.PropertyType)); //根据类型设置属性
}
}
}
workArea.WorkAreaItems.Add(obj);
workArea.RegistModelEvent(obj);
if (xe.HasChildNodes) //如果有子节点，则递归读取
{
obj.ChildWorkFlow = new WorkFlowModel();
LoadChildNode(obj.ChildWorkFlow.WorkArea, xe);
}
}
}
/// <summary>
/// 注册流程模块的事件和数据上下文
/// </summary>
/// <param name="workFlow"></param>
public void RegistModelEvent(BaseWorkFlow workFlow)
{
workFlow.DataContext = workFlow; //设定数据上下文
workFlow.MouseRightButtonUp += AddWf_MouseRightButtonUp; //注册右键删除事件
workFlow.DragStarted += AddWf_DragStarted; //注册鼠标选定事件
workFlow.MouseDoubleClick += WorkFlow_MouseDoubleClick; //注册双击打开子流程事件
}
/// <summary>
/// 工作区添加流程
/// </summary>
/// <param name="workFlowEnum">流程类型</param>
public void AddModelToWorkArea(WorkFlowEnum workFlowEnum)
{
BaseWorkFlow addWf = WorkFlowFactory.GetWorkFlow(workFlowEnum);
WorkAreaItems.Add(addWf);
SelectItem = addWf;
RegistModelEvent(addWf);
}
private void WorkFlow_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
BaseWorkFlow wf = sender as BaseWorkFlow;
if (wf.ChildWorkFlow == null)
{
wf.ChildWorkFlow = new WorkFlowModel(); //新建子流程
}
if (AddChildWorkFlowEventHandler != null)
{
AddChildWorkFlowEventHandler(wf.ChildWorkFlow); //调用事件处理委托通知
if (wf.ChildWorkFlow.WorkArea.AddChildWorkFlowEventHandler == null) //注册子流程双击事件 递归添加
{
wf.ChildWorkFlow.WorkArea.AddChildWorkFlowEventHandler += (obj) => Messenger.Default.Send <object>(obj, MessageToken.ChildWindowMessageToken);
}
}
}
/// <summary>
/// 添加流程到工作区中
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void AddModel(object sender, System.Windows.Controls.Primitives.DragStartedEventArgs e)
{
BaseWorkFlow wf = sender as BaseWorkFlow;
WorkArea.AddModelToWorkArea(wf.WorkFlowEnum);
}
/// <summary>
/// 从工作区移除流程
/// </summary>
/// <param name="workFlow"></param>
/// <param name="workArea"></param>
public void RemoveModelFromWorkArea(BaseWorkFlow workFlow)
{
WorkAreaItems.Remove(workFlow);
}
private void AddWf_DragStarted(object sender, System.Windows.Controls.Primitives.DragStartedEventArgs e)
{
SelectItem = sender as BaseWorkFlow;
}