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#if defined(Hiro_Menu)
namespace hiro {
auto pMenu::construct() -> void {
_createBitmap();
}
auto pMenu::destruct() -> void {
if(hbitmap) { DeleteObject(hbitmap); hbitmap = nullptr; }
if(hmenu) { DestroyMenu(hmenu); hmenu = nullptr; }
}
auto pMenu::append(sAction action) -> void {
_synchronize();
}
auto pMenu::remove(sAction action) -> void {
_synchronize();
}
auto pMenu::setIcon(const image& icon) -> void {
_createBitmap();
_synchronize();
}
auto pMenu::setText(const string& text) -> void {
_synchronize();
}
auto pMenu::_createBitmap() -> void {
if(hbitmap) { DeleteObject(hbitmap); hbitmap = 0; }
if(auto icon = state().icon) {
icon.alphaBlend(GetSysColor(COLOR_MENU)); //Windows does not alpha blend menu icons properly (leaves black outline)
icon.scale(GetSystemMetrics(SM_CXMENUCHECK), GetSystemMetrics(SM_CYMENUCHECK), Interpolation::Linear);
hbitmap = CreateBitmap(icon);
}
}
//Windows actions lack the ability to toggle visibility.
//To support this, menus must be destroyed and recreated when toggling any action's visibility.
auto pMenu::_update() -> void {
if(hmenu) DestroyMenu(hmenu);
hmenu = CreatePopupMenu();
MENUINFO mi{sizeof(MENUINFO)};
mi.fMask = MIM_STYLE;
mi.dwStyle = MNS_NOTIFYBYPOS; //| MNS_MODELESS;
SetMenuInfo(hmenu, &mi);
unsigned position = 0;
for(auto& action : state().actions) {
if(!action->self()) continue;
action->self()->position = position;
unsigned enabled = action->enabled() ? 0 : MF_GRAYED;
MENUITEMINFO mii{sizeof(MENUITEMINFO)};
mii.fMask = MIIM_DATA;
mii.dwItemData = (ULONG_PTR)action.data();
if(auto menu = dynamic_cast<mMenu*>(action.data())) {
if(menu->visible()) {
menu->self()->_update();
AppendMenu(hmenu, MF_STRING | MF_POPUP | enabled, (UINT_PTR)menu->self()->hmenu, utf16_t(menu->text()));
if(auto bitmap = menu->self()->hbitmap) {
//Windows XP and below displays MIIM_BITMAP + hbmpItem in its own column (separate from check/radio marks)
//this causes too much spacing, so use a custom checkmark image instead
mii.fMask |= MIIM_CHECKMARKS;
mii.hbmpUnchecked = bitmap;
}
SetMenuItemInfo(hmenu, position++, true, &mii);
}
}
#if defined(Hiro_MenuSeparator)
else if(auto menuSeparator = dynamic_cast<mMenuSeparator*>(action.data())) {
if(menuSeparator->visible()) {
AppendMenu(hmenu, MF_SEPARATOR | enabled, position, L"");
SetMenuItemInfo(hmenu, position++, true, &mii);
}
}
#endif
#if defined(Hiro_MenuItem)
else if(auto menuItem = dynamic_cast<mMenuItem*>(action.data())) {
if(menuItem->visible()) {
AppendMenu(hmenu, MF_STRING | enabled, position, utf16_t(menuItem->text()));
if(auto bitmap = menuItem->self()->hbitmap) {
mii.fMask |= MIIM_CHECKMARKS;
mii.hbmpUnchecked = bitmap;
}
SetMenuItemInfo(hmenu, position++, true, &mii);
}
}
#endif
#if defined(Hiro_MenuCheckItem)
else if(auto menuCheckItem = dynamic_cast<mMenuCheckItem*>(action.data())) {
if(menuCheckItem->visible()) {
AppendMenu(hmenu, MF_STRING | enabled, position, utf16_t(menuCheckItem->text()));
SetMenuItemInfo(hmenu, position++, true, &mii);
if(menuCheckItem->checked()) menuCheckItem->setChecked();
}
}
#endif
#if defined(Hiro_MenuRadioItem)
else if(auto menuRadioItem = dynamic_cast<mMenuRadioItem*>(action.data())) {
if(menuRadioItem->visible()) {
AppendMenu(hmenu, MF_STRING | enabled, position, utf16_t(menuRadioItem->text()));
SetMenuItemInfo(hmenu, position++, true, &mii);
if(menuRadioItem->checked()) menuRadioItem->setChecked();
}
}
#endif
}
}
}
#endif
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