Method AddItemToTree

src/windows/ChannelView.cpp:156–198

}

HTREEITEM ChannelView::AddItemToTree(HWND hwndTV, LPTSTR lpszItem, HTREEITEM hParent, int nIndex, int nParentIndex, int nIcon)
{
	assert(TreeMode());

	TVITEM tvi;
	TVINSERTSTRUCT tvins;
	HTREEITEM hti;

	tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM;

	// Set the text of the item.
	tvi.pszText = lpszItem;
	tvi.cchTextMax = sizeof(tvi.pszText) / sizeof(tvi.pszText[0]);

	// Assume the item is not a parent item, so give it a
	// document image.
	tvi.iImage = nIcon;
	tvi.iSelectedImage = nIcon;

	// Save the heading level in the item's application-defined
	// data area.
	tvi.lParam = (LPARAM)nIndex;
	tvins.item = tvi;
	tvins.hInsertAfter = GetPrevious(nParentIndex);

	// Set the parent item based on the specified level.
	tvins.hParent = hParent;

	// Add the item to the tree-view control.
	HTREEITEM prev = (HTREEITEM)SendMessage(hwndTV, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvins);

	if (prev == NULL)
		return NULL;

	SetPrevious(nParentIndex, prev);

	// The new item is a child item. Give the parent item a
	// closed folder bitmap to indicate it now has child items.
	hti = TreeView_GetParent(hwndTV, prev);
	TreeView_Expand(hwndTV, hti, TVM_EXPAND);

	return prev;
}

void ChannelView::OnUpdateSelectedChannel(Snowflake newCh)
{