本文整理汇总了C++中MenuItem::SetEnabled方法的典型用法代码示例。如果您正苦于以下问题：C++ MenuItem::SetEnabled方法的具体用法？C++ MenuItem::SetEnabled怎么用？C++ MenuItem::SetEnabled使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MenuItem的用法示例。
在下文中一共展示了MenuItem::SetEnabled方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
static bool
user_menu_boot_volume_state(Menu* menu, MenuItem* _item)
{
MenuItem* bootItem = get_continue_booting_menu_item();
if (bootItem == NULL) {
// huh?
return true;
}
PackageVolumeStateMenuItem* item = static_cast<PackageVolumeStateMenuItem*>(
_item);
if (sBootVolume->IsValid() && sBootVolume->GetPackageVolumeState() != NULL
&& sBootVolume->GetPackageVolumeState() == item->VolumeState()) {
return true;
}
BootVolumeMenuItem* volumeItem = static_cast<BootVolumeMenuItem*>(
item->Supermenu()->Superitem());
volumeItem->SetMarked(true);
volumeItem->Select(true);
volumeItem->UpdateStateName(item->VolumeState());
sPathBlacklist->MakeEmpty();
bool valid = sBootVolume->SetTo((Directory*)item->Data(),
item->VolumeInfo(), item->VolumeState()) == B_OK;
bootItem->SetEnabled(valid);
if (valid)
bootItem->Select(true);
gBootVolume.SetBool(BOOT_VOLUME_USER_SELECTED, true);
return true;
}示例2: new
static Menu *
add_boot_volume_menu(Directory *bootVolume)
{
Menu *menu = new(nothrow) Menu(CHOICE_MENU, "Select Boot Volume");
MenuItem *item;
void *cookie;
int32 count = 0;
if (gRoot->Open(&cookie, O_RDONLY) == B_OK) {
Directory *volume;
while (gRoot->GetNextNode(cookie, (Node **)&volume) == B_OK) {
// only list bootable volumes
if (!is_bootable(volume))
continue;
char name[B_FILE_NAME_LENGTH];
if (volume->GetName(name, sizeof(name)) == B_OK) {
menu->AddItem(item = new(nothrow) MenuItem(name));
item->SetTarget(user_menu_boot_volume);
item->SetData(volume);
if (volume == bootVolume) {
item->SetMarked(true);
item->Select(true);
}
count++;
}
}
gRoot->Close(cookie);
}
if (count == 0) {
// no boot volume found yet
menu->AddItem(item = new(nothrow) MenuItem("<No boot volume found>"));
item->SetType(MENU_ITEM_NO_CHOICE);
item->SetEnabled(false);
}
menu->AddSeparatorItem();
menu->AddItem(item = new(nothrow) MenuItem("Rescan volumes"));
item->SetHelpText("Please insert a Antares CD-ROM or attach a USB disk - "
"depending on your system, you can then boot from them.");
item->SetType(MENU_ITEM_NO_CHOICE);
if (count == 0)
item->Select(true);
menu->AddItem(item = new(nothrow) MenuItem("Return to main menu"));
item->SetType(MENU_ITEM_NO_CHOICE);
if (gKernelArgs.boot_volume.GetBool(BOOT_VOLUME_BOOTED_FROM_IMAGE, false))
menu->SetChoiceText("CD-ROM or hard drive");
return menu;
}示例3: new
status_t
user_menu(Directory** _bootVolume)
{
Menu* menu = new(std::nothrow) Menu(MAIN_MENU);
Menu* safeModeMenu = NULL;
Menu* debugMenu = NULL;
MenuItem* item;
TRACE(("user_menu: enter\n"));
// Add boot volume
menu->AddItem(item = new(std::nothrow) MenuItem("Select boot volume",
add_boot_volume_menu(*_bootVolume)));
// Add safe mode
menu->AddItem(item = new(std::nothrow) MenuItem("Select safe mode options",
safeModeMenu = add_safe_mode_menu()));
// add debug menu
menu->AddItem(item = new(std::nothrow) MenuItem("Select debug options",
debugMenu = add_debug_menu()));
// Add platform dependent menus
platform_add_menus(menu);
menu->AddSeparatorItem();
menu->AddItem(item = new(std::nothrow) MenuItem("Reboot"));
item->SetTarget(user_menu_reboot);
item->SetShortcut('r');
menu->AddItem(item = new(std::nothrow) MenuItem("Continue booting"));
if (*_bootVolume == NULL) {
item->SetEnabled(false);
menu->ItemAt(0)->Select(true);
} else
item->SetShortcut('b');
menu->Run();
// See if a new boot device has been selected, and propagate that back
if (item->Data() != NULL)
*_bootVolume = (Directory*)item->Data();
apply_safe_mode_options(safeModeMenu);
apply_safe_mode_options(debugMenu);
delete menu;
TRACE(("user_menu: leave\n"));
return B_OK;
}示例4:
static bool
user_menu_boot_volume(Menu *menu, MenuItem *item)
{
Menu *super = menu->Supermenu();
if (super == NULL) {
// huh?
return true;
}
MenuItem *bootItem = super->ItemAt(super->CountItems() - 1);
bootItem->SetEnabled(true);
bootItem->Select(true);
bootItem->SetData(item->Data());
gKernelArgs.boot_volume.SetBool(BOOT_VOLUME_USER_SELECTED, true);
return true;
}示例5: new
status_t
user_menu(BootVolume& _bootVolume, PathBlacklist& _pathBlacklist)
{
Menu* menu = new(std::nothrow) Menu(MAIN_MENU);
sMainMenu = menu;
sBootVolume = &_bootVolume;
sPathBlacklist = &_pathBlacklist;
Menu* safeModeMenu = NULL;
Menu* debugMenu = NULL;
MenuItem* item;
TRACE(("user_menu: enter\n"));
// Add boot volume
menu->AddItem(item = new(std::nothrow) MenuItem("Select boot volume",
add_boot_volume_menu()));
// Add safe mode
menu->AddItem(item = new(std::nothrow) MenuItem("Select safe mode options",
safeModeMenu = add_safe_mode_menu()));
// add debug menu
menu->AddItem(item = new(std::nothrow) MenuItem("Select debug options",
debugMenu = add_debug_menu()));
// Add platform dependent menus
platform_add_menus(menu);
menu->AddSeparatorItem();
menu->AddItem(item = new(std::nothrow) MenuItem("Reboot"));
item->SetTarget(user_menu_reboot);
item->SetShortcut('r');
menu->AddItem(item = new(std::nothrow) MenuItem("Continue booting"));
if (!_bootVolume.IsValid()) {
item->SetEnabled(false);
menu->ItemAt(0)->Select(true);
} else
item->SetShortcut('b');
menu->Run();
apply_safe_mode_options(safeModeMenu);
apply_safe_mode_options(debugMenu);
apply_safe_mode_path_blacklist();
add_safe_mode_settings(sSafeModeOptionsBuffer.String());
delete menu;
TRACE(("user_menu: leave\n"));
sMainMenu = NULL;
sBlacklistRootMenu = NULL;
sBootVolume = NULL;
sPathBlacklist = NULL;
return B_OK;
}