int main()
{
// 创建一个树形结构
// 创建根节点
Component *pRoot = new Composite("江湖公司（任我行）");
// 创建分支
Component *pDepart1 = new Composite("日月神教（东方不败）");
pDepart1->Add(new Leaf("光明左使（向问天）"));
pDepart1->Add(new Leaf("光明右使（曲洋）"));
pRoot->Add(pDepart1);
Component *pDepart2 = new Composite("五岳剑派（左冷蝉）");
pDepart2->Add(new Leaf("嵩山（左冷蝉）"));
pDepart2->Add(new Leaf("衡山（莫大）"));
pDepart2->Add(new Leaf("华山（岳不群）"));
pDepart2->Add(new Leaf("泰山（天门道长）"));
pDepart2->Add(new Leaf("恒山（定闲师太）"));
pRoot->Add(pDepart2);
// 添加和删除叶子
pRoot->Add(new Leaf("少林（方证大师）"));
pRoot->Add(new Leaf("武当（冲虚道长）"));
Component *pLeaf = new Leaf("青城（余沧海）");
pRoot->Add(pLeaf);
// 小丑，直接裁掉
pRoot->Remove(pLeaf);
// 递归地显示组织架构
pRoot->Operation(1);
// 删除分配的内存
SAFE_DELETE(pRoot);
getchar();
return 0;
}
int main()
{
Component* cmp;
Leaf* lfp;
Leaf lf;
Composite cs;
cmp = &lf;
cmp->Add(cmp);
cmp->Remove(cmp);
lfp = &lf;
lfp->Add(cmp); //compile error
lf.Add(cmp); //compile error
return 0;
}
void main()
{
try
{
Component * HeadComponent;
Component * CurrComponent;
Component * SubComponent;
Component * SubSubComponent;
ComponentIterator * CompIter;
int x;
int y;
int z;
char name[100] = {"Object level"};
char actual_name[100];
char add_string[100];
// build it up.....
HeadComponent = new Composite("Head");
CurrComponent = HeadComponent;
for (x = 0; x<10 ;x++)
{
strcpy(actual_name,name);
sprintf(add_string,"1-%d",x);
strcat(actual_name,add_string);
if(x == 2 || x == 4)
{
strcpy(actual_name,name);
sprintf(add_string,"1-%d-%d",x,y);
strcat(actual_name,add_string);
SubComponent = new Composite(actual_name);
CurrComponent->Add(SubComponent);
for (y = 0; y < 10; y++)
{
if (y == 7 || y == 9)
{
SubSubComponent = new Composite(actual_name);
SubComponent->Add(SubSubComponent);
}
else
{
SubComponent->Add(new Component(actual_name));
}
}
}
else
{
CurrComponent->Add(new Component(actual_name));
}
}
HeadComponent->Operation();
// test iterator operation!
if (HeadComponent->GetChild())
{
CompIter = HeadComponent->CreateIterator();
while (! CompIter->IsDone())
{
CompIter->CurrentItem()->PrintName();
(*CompIter)++;
}
}
delete CompIter;
delete HeadComponent;
}
catch(EXCEPTION_CODE ec)
{
switch (ec)
{
case EXC_MEMORY_ALLOC_FAILURE_LISTCLASS :
cout << "Exception:" << "mem alloc failure.. list class" << endl;
break;
case EXC_HEAP_ALLOC_FAILURE :
cout << "Exception:" << "Heap allocation failure!" << endl;
break;
case EXC_BAD_ADD_COMPONENT :
cout << "Exception:" << "Tried to add w/ component object" << endl;
break;
case EXC_BAD_REMOVE_COMPONENT :
cout << "Exception:" << "Tried to remove w/ component object" << endl;
break;
case EXC_BAD_COUNT_CALL :
cout << "Exception:" << "Tried to get count on a component object" << endl;
break;
case EXC_BAD_GET_CALL :
cout << "Exception:" << "Tried to get a component object from a component object" << endl;
break;
case EXC_CANT_CREATE_ITERATOR :
cout << "Exception:" << "Can't create component for object of this type!" << endl;
break;
default:
cout << "Exception: " << " no msg for this exception" << endl;
}
}
}