Application应用框架思考(三) 之[插件机制] /// <summary> /// 单例类 /// //为子功能提供主框架信息接口 类 /// </summary> public class ApplicationProvider : IApplicationProvider, IConnectable { public ApplicationProvider() { } private static ApplicationProvider instance = new ApplicationProvider(); public IApplication Application { get { return instance.m_Application; } } #region IConnectable 成员 private IApplication m_Application; public void Connect(IApplication Application) { instance.m_Application = Application; } #endregion } /// <summary> /// //为子功能提供主框架信息接口 /// </summary> public interface IApplicationProvider { } /// <summary> /// 能连接到Application宿主程序 /// </summary> public interface IConnectable { void Connect(IApplication Application); } /// <summary> /// 标志插件IPlugIn接口 /// </summary> public interface IPlugIn : IApplicationProvider { /// <summary> /// 插件汉化名称 /// </summary> string PlugInChineseName { get; } } /// <summary> /// 默认适配器类 /// </summary> public abstract class PlugInClass : IPlugIn { #region IPlugIn 成员 public virtual string PlugInChineseName { get { return ""; } } #endregion #region IApplicationProvider 成员 private IApplication m_Application = null; public virtual void Connect(IApplication Application) { m_Application = Application; } #endregion } public class ExecuterLoadDLLToMemory { IPlugInEx hook = null; public ExecuterLoadDLLToMemory(object phook) { try { hook = phook as IPlugInEx; } catch { } } /// <summary> /// 使用属性 Assembly/Expression/ /// </summary> /// <param name="tdcmd"></param> public void LoadDLLToMemory(ref ICommandEx tdcmd) { try { if (hook.Assembly == null || hook.Assembly.Trim().Length <= 0 || hook.Expression.Trim().Length<=0) { return; } string tmpPath = GISApplication.Instance.ApplicationStartupPath + "//" + hook.Assembly; if (System.IO.File.Exists(tmpPath) == false) { return; } object objHdl = null; Type type = null; string AppPath = GISApplication.Instance.ApplicationStartupPath; if (GISApplication.Instance.MainAppEx.ALL_DllInstanceSet.ContainsKey(hook.Expression) == false) { string Dllfilename = AppPath + "//" + hook.Assembly; System.Reflection.Assembly assembly = System.Reflection.Assembly.LoadFrom(Dllfilename); type = assembly.GetType(hook.Expression); //构造函数 objHdl = (object)Activator.CreateInstance(type); //objHdl = (object)Activator.CreateInstance(type, args); GISApplication.Instance.MainAppEx.ALL_DllInstanceSet.addDllInstance(hook.Expression, objHdl, type); } else { //取出实例化值 ExtendPropertySet meps = GISApplication.Instance.MainAppEx.ALL_DllInstanceSet.getValue(hook.Expression); objHdl = meps.DllInstance; type = meps.type; meps = null; } //调用执行类中的方法 //MM_GetInvokeMethod(type, method, hook.Method, objHdl); tdcmd = objHdl as ICommandEx; objHdl = null; type = null; } catch (Exception e) { tdcmd = null; MessageBox.Show(hook.Assembly + Environment.NewLine + hook.Expression + Environment.NewLine + Environment.NewLine + e.ToString()); } } //获取和调用方法 private void MM_GetInvokeMethod(Type type, MethodInfo method, string methodName, object objHdl) { method = type.GetMethod(methodName); ParameterInfo[] myParameters = method.GetParameters(); if (myParameters.Length <= 0) { //(不带参数的方法) method.Invoke(objHdl, new object[] { }); } else { //(带参数的方法) string tt = "sfsdfsdf"; method.Invoke(objHdl, new object[] { tt }); } } //获取和调用属性 private void MM_GetInvokeProperty(Type type, string methodName, object objHdl, object oValue) { PropertyInfo property = null; property = type.GetProperty(methodName); property.SetValue(objHdl, oValue, null); } } /// <summary> /// //为子功能提供主框架信息接口 扩展 /// </summary> public interface IApplicationProviderEx : IApplicationProvider,IConnectableEx { } public interface IConnectableEx { void Connect(IGISApplication Application); } public interface IPlugInEx : IPlugIn,IApplicationProviderEx { /// <summary> /// Parent父级对象 /// </summary> object Parent { get; set; } /// <summary> /// GUID /// </summary> string objGuid { get; set; } bool objChecked { get; set; } bool objVisible { get; set; } bool objEnabled { get; set; } bool IsExecute { get; set; } //属性 string ShortCutKeys { get; set; } //快捷键 string ToolBarItemType { get; set; } //何种类型按钮 string ToolStripItemDisplayStyle { get; set; } //显示状态 string Expression { get; set; } //命名空间.类名 string Assembly { get; set; } //dll文件名 /// <summary> /// 执行方法 /// </summary> void Execute(); /// <summary> /// 初始化操作方法 /// </summary> void init(); ExecuterLoadDLLToMemory LoadDLLToMemory { get; } } /// <summary> /// 基础通用插件类 /// </summary> public class PlugInExClass : ICommandHolder, IPlugInEx,ICallExecuteAble { public PlugInExClass() { } #region ICommandHolder 成员 private ICommandEx pCommand = null; public ICommandEx getCommand() { return pCommand; } public void setCommand(ICommandEx cmd) { pCommand = cmd; } public void setParentIPlugIn(IPlugInEx ParentIPlugIn) { } #endregion #region IPlugInEx 成员 private object pParent = null; public new object Parent { get { return this.pParent; } set { this.pParent = value; } } private string pobjGuid = ""; public string objGuid { get { return this.pobjGuid; } set { this.pobjGuid = value; } } //------------------------------ public bool objChecked { get { return false; } set { } } public bool objVisible { get { return false; } set { } } private bool Enabled = false; public bool objEnabled { get { return this.Enabled; } set { this.Enabled = value; } } //----------------------------- private bool pIsExecute = false; public bool IsExecute { get { return this.pIsExecute; } set { this.pIsExecute = value; } } private string pShortCutKeys = ""; public string ShortCutKeys { get { return this.pShortCutKeys; } set { this.pShortCutKeys = value; } } private string pToolBarItemType = ""; public string ToolBarItemType { get { return this.pToolBarItemType; } set { this.pToolBarItemType = value; } } private string pToolStripItemDisplayStyle = ""; public string ToolStripItemDisplayStyle { get { return this.pToolStripItemDisplayStyle; } set { this.pToolStripItemDisplayStyle = value; } } private string pExpression = ""; public string Expression { get { return this.pExpression; } set { this.pExpression = value; } } private string pAssembly = ""; public string Assembly { get { return this.pAssembly; } set { this.pAssembly = value; } } public void Execute() { ICommandEx cmd = this.getCommand(); if (cmd != null) { if (cmd is ITool) { GISApplication.Instance.MainAppEx.CurrentArcGISControl.CurrentTool = cmd as ITool; } else { GISApplication.Instance.MainAppEx.CurrentArcGISControl.CurrentTool = null; } cmd.OnCreate(GISApplication.Instance.MainAppEx.CurrentArcGISControl.CurrentHook); cmd.OnClick(); } else { //初始化一个功能 this.LoadDLLToMemory.LoadDLLToMemory(ref cmd); if (cmd != null) { this.setCommand(cmd); if (cmd is ITool) { GISApplication.Instance.MainAppEx.CurrentArcGISControl.CurrentTool = cmd as ITool; } else { GISApplication.Instance.MainAppEx.CurrentArcGISControl.CurrentTool = null; } cmd.OnCreate(GISApplication.Instance.MainAppEx.CurrentArcGISControl.CurrentHook); cmd.OnClick(); } } } /// <summary> /// 初始化ITDCommand实例 /// </summary> public void init() { ICommandEx cmd = this.getCommand(); if (cmd == null) { //初始化一个功能 this.LoadDLLToMemory.LoadDLLToMemory(ref cmd); if (cmd != null) { if (GISApplication.Instance.MainAppEx.CurrentArcGISControl != null) { cmd.OnCreate(GISApplication.Instance.MainAppEx.CurrentArcGISControl.CurrentHook); } this.setCommand(cmd); } } } private ExecuterLoadDLLToMemory pLoadDLLToMemory = null; public ExecuterLoadDLLToMemory LoadDLLToMemory { get { if (this.pLoadDLLToMemory == null) { this.pLoadDLLToMemory = new ExecuterLoadDLLToMemory(this); } return pLoadDLLToMemory; } } #endregion #region IPlugIn 成员 public string PlugInChineseName { get { return "default PlugInExClass"; } } #endregion #region IApplicationProvider 成员 private IApplication m_Application = null; public void Connect(IApplication Application) { m_Application = Application; } #endregion }
