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#if defined(Hiro_MenuBar)
namespace hiro {
auto pMenuBar::construct() -> void {
_update();
}
auto pMenuBar::destruct() -> void {
pApplication::state().menuBarsToRebuild.removeByValue(this);
if(hmenu) { DestroyMenu(hmenu); hmenu = nullptr; }
if(auto parent = _parent()) {
SetMenu(parent->hwnd, nullptr);
}
}
auto pMenuBar::append(sMenu) -> void {
_update();
}
auto pMenuBar::remove(sMenu) -> void {
_update();
}
auto pMenuBar::setEnabled(bool enabled) -> void {
_update();
}
auto pMenuBar::setFont(const Font& font) -> void {
//unsupported
}
auto pMenuBar::setVisible(bool visible) -> void {
if(auto parent = _parent()) {
SetMenu(parent->hwnd, visible ? hmenu : nullptr);
parent->setGeometry(parent->state().geometry);
}
}
auto pMenuBar::_parent() -> maybe<pWindow&> {
if(auto parent = self().parentWindow(true)) {
if(auto self = parent->self()) return *self;
}
return nothing;
}
auto pMenuBar::_rebuild() -> void {
if(hmenu) DestroyMenu(hmenu);
hmenu = CreateMenu();
MENUINFO mi{sizeof(MENUINFO)};
mi.fMask = MIM_STYLE;
mi.dwStyle = MNS_NOTIFYBYPOS; //| MNS_MODELESS;
SetMenuInfo(hmenu, &mi);
u32 position = 0;
#if defined(Hiro_Menu)
for(auto& menu : state().menus) {
u32 enabled = menu->enabled() ? 0 : MF_GRAYED;
MENUITEMINFO mii{sizeof(MENUITEMINFO)};
mii.fMask = MIIM_DATA;
mii.dwItemData = (ULONG_PTR)menu.data();
if(menu->visible()) {
if(auto self = menu->self()) {
self->_update();
AppendMenu(hmenu, MF_STRING | MF_POPUP | enabled, (UINT_PTR)self->hmenu, utf16_t(menu->text()));
SetMenuItemInfo(hmenu, position++, true, &mii);
}
}
}
#endif
if(auto parent = _parent()) {
SetMenu(parent->hwnd, self().visible(true) ? hmenu : nullptr);
parent->setGeometry(parent->state().geometry);
}
}
auto pMenuBar::_update() -> void {
//if there is no menu bar, build it immediately to ensure correct window geometry calculations
if(auto parent = _parent()) {
if(!GetMenu(parent->hwnd)) return _rebuild();
}
//otherwise, defer the menu bar update for later to reduce flickering
pApplication::state().menuBarsToRebuild.removeByValue(this);
pApplication::state().menuBarsToRebuild.append(this);
}
}
#endif
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