C++ (Cpp) LLMenuGL::arrangeAndClear示例

void LLTeleportHistoryPanel::onGearButtonClicked()
{
	LLMenuGL* menu = (LLMenuGL*)mGearMenuHandle.get();
	if (!menu)
		return;

	// Shows the menu at the top of the button bar.

	// Calculate its coordinates.
	LLPanel* bottom_panel = getChild<LLPanel>("bottom_panel");
	menu->arrangeAndClear();
	S32 menu_height = menu->getRect().getHeight();
	S32 menu_x = -2; // *HACK: compensates HPAD in showPopup()
	S32 menu_y = bottom_panel->getRect().mTop + menu_height;

	// Actually show the menu.
	menu->buildDrawLabels();
	menu->updateParent(LLMenuGL::sMenuContainer);
	LLMenuGL::showPopup(this, menu, menu_x, menu_y);
}