// 【建议】直接在播放列表里嵌入一个listbox控件来存放文件路径，这样操作起来就方便多了。
// 由于没有Demo可以参考，所以为了让大家知道treeview的更多用法，这里用treeview作为示例。
void CDuiFrameWnd::GetPlaylistInfo(int &iIndexTreeStart, int &iFileCount)
{
iIndexTreeStart = -1;
iFileCount = 0;
// 查找路径文件的起始节点，目前为nodePlaylist第3个子节点
CTreeNodeUI *pNodeTmp;
CTreeNodeUI *pNodePlaylist = static_cast<CTreeNodeUI*>(m_PaintManager.FindControl(_T("nodePlaylist")));
int iNodeTotal = pNodePlaylist->GetCountChild();
int i;
for(i = 0; i < iNodeTotal; i++)
{
pNodeTmp = pNodePlaylist->GetChildNode(i);
if (U_TAG_PLAYLIST == pNodeTmp->GetTag())
{
break;
}
}
// 未找到U_TAG_PLAYLIST的子节点，说明没有文件加入
if (i == iNodeTotal)
{
return;
}
// 已找到起始节点，开始找上一个文件或下一个文件
CTreeViewUI* pTree = static_cast<CTreeViewUI*>(m_PaintManager.FindControl(_T("treePlaylist")));
if (pTree)
{
iIndexTreeStart = pTree->GetItemIndex(pNodeTmp);
iFileCount = iNodeTotal - i;
}
}
IMPL_LUA_FUNC(LuaCTreeNodeUI, GetChildNode)
{
try
{
CTreeNodeUI* self;
self = static_cast<CTreeNodeUI*>(LuaStatic::CheckUserData(l, 1));
int iIndex = lua_tointeger(l,2);
CTreeNodeUI* pTreeNodeUI = self->GetChildNode(iIndex);
if (pTreeNodeUI)
LuaStatic::AddObject2Lua(l, pTreeNodeUI, METATABLE_NAME(pTreeNodeUI));
else
lua_pushnil(l);
return 1;
}
catch (...)
{
DuiException(_T("LuaCTreeNodeUI::GetChildNode"));
return 0;
}
}