public void CreateExpandDelegate(TemplatedGroup host)
{
Type dataType = Type.GetType(strDataType);
if (dataType == null)
{
Assembly a = Assembly.GetEntryAssembly();
foreach (Type expT in a.GetExportedTypes())
{
if (expT.Name == strDataType)
{
dataType = expT;
break;
}
}
}
if (dataType == null)
{
Debug.WriteLine("ItemTemplate error: DataType not found: {0}.", strDataType);
return;
}
Type tmpGrpType = typeof(TemplatedGroup);
Type evtType = typeof(EventHandler);
PropertyInfo piData = tmpGrpType.GetProperty("Data");
MethodInfo evtInvoke = evtType.GetMethod("Invoke");
ParameterInfo [] evtParams = evtInvoke.GetParameters();
Type handlerArgsType = evtParams [1].ParameterType;
Type [] args = { CompilerServices.TObject, CompilerServices.TObject, handlerArgsType };
#region Expand dyn meth
//DM is bound to templatedGroup root (arg0)
//arg1 is the sender of the expand event
DynamicMethod dm = new DynamicMethod("dyn_expand_" + fetchMethodName,
typeof(void), args, true);
System.Reflection.Emit.Label gotoEnd;
System.Reflection.Emit.Label ifDataIsNull;
ILGenerator il = dm.GetILGenerator(256);
il.DeclareLocal(typeof(GraphicObject));
gotoEnd = il.DefineLabel();
ifDataIsNull = il.DefineLabel();
il.Emit(OpCodes.Ldarg_1); //load sender of expand event
il.Emit(OpCodes.Ldstr, "List");
il.Emit(OpCodes.Callvirt, CompilerServices.miFindByName);
il.Emit(OpCodes.Stloc_0);
//check that 'Data' of list is not already set
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Callvirt, piData.GetGetMethod());
il.Emit(OpCodes.Brfalse, ifDataIsNull);
il.Emit(OpCodes.Br, gotoEnd);
il.MarkLabel(ifDataIsNull);
//copy the ref of ItemTemplates list TODO: maybe find another way to share it among the nodes?
FieldInfo fiTemplates = tmpGrpType.GetField("ItemTemplates");
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldfld, fiTemplates);
il.Emit(OpCodes.Stfld, fiTemplates);
//call 'fetchMethodName' from the dataSource to build the sub nodes list
il.Emit(OpCodes.Ldloc_0); //push 'List' (of sub nodes) into the stack
il.Emit(OpCodes.Ldarg_1); //get the dataSource of the sender
il.Emit(OpCodes.Callvirt, CompilerServices.miGetDataSource);
if (fetchMethodName != "self") //special keyword self allows the use of recurent list<<<
{
emitGetSubData(il, dataType);
}
//set 'return' from the fetch method as 'data' of the list
il.Emit(OpCodes.Callvirt, piData.GetSetMethod());
il.MarkLabel(gotoEnd);
il.Emit(OpCodes.Ret);
Expand = (EventHandler)dm.CreateDelegate(evtType, host);
#endregion
#region Items counting dyn method
//dm is unbound, arg0 is instance of Item container to expand
dm = new DynamicMethod("dyn_count_" + fetchMethodName,
typeof(bool), new Type[] { CompilerServices.TObject }, true);
il = dm.GetILGenerator(256);
//get the dataSource of the arg0
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Callvirt, CompilerServices.miGetDataSource);
if (fetchMethodName != "self")
{
emitGetSubData(il, dataType);
}
il.Emit(OpCodes.Callvirt, CompilerServices.miGetColCount);
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Cgt);
il.Emit(OpCodes.Ret);
HasSubItems = (BooleanTestOnInstance)dm.CreateDelegate(typeof(BooleanTestOnInstance));
#endregion
}
/// <summary>
/// Creates the expand delegate.
/// </summary>
/// <param name="host">Host.</param>
public void CreateExpandDelegate(TemplatedGroup host)
{
Type dataType = null;
//if (host.DataTest == "TypeOf"){
dataType = CompilerServices.tryGetType(strDataType);
// if (dataType == null) {
// Debug.WriteLine ("ItemTemplate error: DataType not found: {0}.", strDataType);
// return;
// }
// }
Type tmpGrpType = typeof(TemplatedGroup);
Type evtType = typeof(EventHandler);
//PropertyInfo piData = tmpGrpType.GetProperty ("Data");
MethodInfo evtInvoke = evtType.GetMethod("Invoke");
ParameterInfo [] evtParams = evtInvoke.GetParameters();
Type handlerArgsType = evtParams [1].ParameterType;
Type [] args = { CompilerServices.TObject, CompilerServices.TObject, handlerArgsType };
#region Expand dyn meth
//DM is bound to templatedGroup root (arg0)
//arg1 is the sender of the expand event
DynamicMethod dm = new DynamicMethod("dyn_expand_" + fetchMethodName,
typeof(void), args, typeof(TemplatedGroup), true);
System.Reflection.Emit.Label gotoEnd;
System.Reflection.Emit.Label ifDataIsNull;
System.Reflection.Emit.Label gotoItemsContainerNotFound;
ILGenerator il = dm.GetILGenerator(256);
il.DeclareLocal(typeof(GraphicObject));
gotoEnd = il.DefineLabel();
ifDataIsNull = il.DefineLabel();
gotoItemsContainerNotFound = il.DefineLabel();
il.Emit(OpCodes.Ldarg_1); //load sender of expand event
il.Emit(OpCodes.Ldstr, "ItemsContainer"); //load name to find
il.Emit(OpCodes.Callvirt, CompilerServices.miFindByName);
il.Emit(OpCodes.Stloc_0); //save items container as loc0
//ensure ItemsContainer is not null
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Brfalse, gotoItemsContainerNotFound);
//check that node is not already expanded
il.Emit(OpCodes.Ldarg_0); //push root TemplatedGroup into the stack
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Call, CompilerServices.miIsAlreadyExpanded);
il.Emit(OpCodes.Brtrue, gotoEnd);
// il.Emit (OpCodes.Ldloc_0);
// il.Emit (OpCodes.Callvirt, piData.GetGetMethod ());
// il.Emit (OpCodes.Brfalse, ifDataIsNull);
// il.Emit (OpCodes.Br, gotoEnd);
// il.MarkLabel(ifDataIsNull);
//copy the ref of ItemTemplates list TODO: maybe find another way to share it among the nodes?
// FieldInfo fiTemplates = tmpGrpType.GetField("ItemTemplates");
// il.Emit (OpCodes.Ldloc_0);
// il.Emit (OpCodes.Ldarg_0);
// il.Emit (OpCodes.Ldfld, fiTemplates);
// il.Emit (OpCodes.Stfld, fiTemplates);
//call 'fetchMethodName' from the dataSource to build the sub nodes list
//il.Emit (OpCodes.Ldarg_0);//load root templatedGroop
il.Emit(OpCodes.Ldarg_0); //push root TemplatedGroup into the stack
il.Emit(OpCodes.Ldarg_1); //load sender node of expand
il.Emit(OpCodes.Callvirt, CompilerServices.miGetDataSource); //get the dataSource of the sender
if (fetchMethodName != "self") //special keyword self allows the use of recurent list<<<
{
if (dataType == null)
{
//dataTest was not = TypeOF, so we have to get the type of data
//dynamically and fetch
il.Emit(OpCodes.Ldstr, fetchMethodName);
il.Emit(OpCodes.Callvirt, CompilerServices.miGetDataTypeAndFetch);
}
else
{
emitGetSubData(il, dataType);
}
}
//set 'return' from the fetch method as 'data' of the list
//il.Emit (OpCodes.Callvirt, piData.GetSetMethod ());
il.Emit(OpCodes.Ldloc_0); //load second arg of loadPage, the sender node
il.Emit(OpCodes.Ldstr, dataTest); //load 3rd arg, dataTest kind on subitems
il.Emit(OpCodes.Callvirt, CompilerServices.miLoadPage);
il.Emit(OpCodes.Br, gotoEnd);
il.MarkLabel(gotoItemsContainerNotFound);
il.EmitWriteLine("ItemsContainer not found in ItemTemplate for " + host.ToString());
il.MarkLabel(gotoEnd);
il.Emit(OpCodes.Ret);
Expand = (EventHandler)dm.CreateDelegate(evtType, host);
#endregion
#region Items counting dyn method
//dm is unbound, arg0 is instance of Item container to expand
dm = new DynamicMethod("dyn_count_" + fetchMethodName,
typeof(bool), new Type[] { CompilerServices.TObject }, true);
il = dm.GetILGenerator(256);
//get the dataSource of the arg0
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Callvirt, CompilerServices.miGetDataSource);
if (fetchMethodName != "self") //special keyword self allows the use of recurent list<<<
{
if (dataType == null)
{
//dataTest was not = TypeOF, so we have to get the type of data
//dynamically and fetch
il.Emit(OpCodes.Ldstr, fetchMethodName);
il.Emit(OpCodes.Callvirt, CompilerServices.miGetDataTypeAndFetch);
}
else
{
emitGetSubData(il, dataType);
}
}
il.Emit(OpCodes.Callvirt, CompilerServices.miGetColCount);
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Cgt);
il.Emit(OpCodes.Ret);
HasSubItems = (BooleanTestOnInstance)dm.CreateDelegate(typeof(BooleanTestOnInstance));
#endregion
}
public void CreateExpandDelegate(TemplatedGroup host)
{
Type dataType = Type.GetType(strDataType);
Type tmpGrpType = typeof(TemplatedGroup);
Type evtType = typeof(EventHandler);
PropertyInfo piData = tmpGrpType.GetProperty ("Data");
MethodInfo evtInvoke = evtType.GetMethod ("Invoke");
ParameterInfo [] evtParams = evtInvoke.GetParameters ();
Type handlerArgsType = evtParams [1].ParameterType;
Type [] args = { CompilerServices.TObject, CompilerServices.TObject, handlerArgsType };
#region Expand dyn meth
//DM is bound to templatedGroup root (arg0)
//arg1 is the sender of the expand event
DynamicMethod dm = new DynamicMethod ("dyn_expand_" + fetchMethodName,
typeof (void), args, true);
System.Reflection.Emit.Label gotoEnd;
System.Reflection.Emit.Label ifDataIsNull;
ILGenerator il = dm.GetILGenerator (256);
il.DeclareLocal(typeof(GraphicObject));
gotoEnd = il.DefineLabel ();
ifDataIsNull = il.DefineLabel ();
il.Emit (OpCodes.Ldarg_1);//load sender of expand event
il.Emit(OpCodes.Ldstr, "List");
il.Emit (OpCodes.Callvirt, CompilerServices.miFindByName);
il.Emit (OpCodes.Stloc_0);
//check that 'Data' of list is not already set
il.Emit (OpCodes.Ldloc_0);
il.Emit (OpCodes.Callvirt, piData.GetGetMethod ());
il.Emit (OpCodes.Brfalse, ifDataIsNull);
il.Emit (OpCodes.Br, gotoEnd);
il.MarkLabel(ifDataIsNull);
//copy the ref of ItemTemplates list TODO: maybe find another way to share it among the nodes?
FieldInfo fiTemplates = tmpGrpType.GetField("ItemTemplates");
il.Emit (OpCodes.Ldloc_0);
il.Emit (OpCodes.Ldarg_0);
il.Emit (OpCodes.Ldfld, fiTemplates);
il.Emit (OpCodes.Stfld, fiTemplates);
//call 'fetchMethodName' from the dataSource to build the sub nodes list
il.Emit (OpCodes.Ldloc_0);//push 'List' (of sub nodes) into the stack
il.Emit (OpCodes.Ldarg_1);//get the dataSource of the sender
il.Emit (OpCodes.Callvirt, CompilerServices.miGetDataSource);
if (fetchMethodName != "self")//special keyword self allows the use of recurent list<<<
emitGetSubData(il, dataType);
//set 'return' from the fetch method as 'data' of the list
il.Emit (OpCodes.Callvirt, piData.GetSetMethod ());
il.MarkLabel(gotoEnd);
il.Emit (OpCodes.Ret);
Expand = (EventHandler)dm.CreateDelegate (evtType, host);
#endregion
#region Items counting dyn method
//dm is unbound, arg0 is instance of Item container to expand
dm = new DynamicMethod ("dyn_count_" + fetchMethodName,
typeof (bool), new Type[] {CompilerServices.TObject}, true);
il = dm.GetILGenerator (256);
//get the dataSource of the arg0
il.Emit (OpCodes.Ldarg_0);
il.Emit (OpCodes.Callvirt, CompilerServices.miGetDataSource);
if (fetchMethodName != "self")
emitGetSubData(il, dataType);
il.Emit (OpCodes.Callvirt, CompilerServices.miGetColCount);
il.Emit (OpCodes.Ldc_I4_0);
il.Emit (OpCodes.Cgt);
il.Emit (OpCodes.Ret);
HasSubItems = (BooleanTestOnInstance)dm.CreateDelegate (typeof(BooleanTestOnInstance));
#endregion
}
