本文整理汇总了C++中BPartition::Device方法的典型用法代码示例。如果您正苦于以下问题：C++ BPartition::Device方法的具体用法？C++ BPartition::Device怎么用？C++ BPartition::Device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BPartition的用法示例。
在下文中一共展示了BPartition::Device方法的1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: BMessage
void
MainWindow::_UpdateMenus(BDiskDevice* disk,
partition_id selectedPartition, partition_id parentID)
{
while (BMenuItem* item = fFormatMenu->RemoveItem(0L))
delete item;
while (BMenuItem* item = fDiskInitMenu->RemoveItem(0L))
delete item;
fCreateMI->SetEnabled(false);
fUnmountMI->SetEnabled(false);
fDiskInitMenu->SetEnabled(false);
fFormatMenu->SetEnabled(false);
if (!disk) {
fWipeMI->SetEnabled(false);
fEjectMI->SetEnabled(false);
fSurfaceTestMI->SetEnabled(false);
} else {
// fWipeMI->SetEnabled(true);
fWipeMI->SetEnabled(false);
fEjectMI->SetEnabled(disk->IsRemovableMedia());
// fSurfaceTestMI->SetEnabled(true);
fSurfaceTestMI->SetEnabled(false);
// Create menu and items
BPartition* parentPartition = NULL;
if (selectedPartition <= -2) {
// a partitionable space item is selected
parentPartition = disk->FindDescendant(parentID);
}
if (parentPartition && parentPartition->ContainsPartitioningSystem())
fCreateMI->SetEnabled(true);
bool prepared = disk->PrepareModifications() == B_OK;
fFormatMenu->SetEnabled(prepared);
fDeleteMI->SetEnabled(prepared);
BPartition* partition = disk->FindDescendant(selectedPartition);
BDiskSystem diskSystem;
fDDRoster.RewindDiskSystems();
while (fDDRoster.GetNextDiskSystem(&diskSystem) == B_OK) {
if (!diskSystem.SupportsInitializing())
continue;
BMessage* message = new BMessage(MSG_INITIALIZE);
message->AddInt32("parent id", parentID);
message->AddString("disk system", diskSystem.PrettyName());
BString label = diskSystem.PrettyName();
label << B_UTF8_ELLIPSIS;
BMenuItem* item = new BMenuItem(label.String(), message);
// TODO: Very unintuitive that we have to use PrettyName (vs Name)
item->SetEnabled(partition != NULL
&& partition->CanInitialize(diskSystem.PrettyName()));
if (disk->ID() == selectedPartition
&& !diskSystem.IsFileSystem()) {
// Disk is selected, and DiskSystem is a partition map
fDiskInitMenu->AddItem(item);
} else if (diskSystem.IsFileSystem()) {
// Otherwise a filesystem
fFormatMenu->AddItem(item);
}
}
// Mount items
if (partition) {
fFormatMenu->SetEnabled(!partition->IsMounted()
&& !partition->IsReadOnly()
&& partition->Device()->HasMedia()
&& fFormatMenu->CountItems() > 0);
fDiskInitMenu->SetEnabled(!partition->IsMounted()
&& !partition->IsReadOnly()
&& partition->Device()->HasMedia()
&& partition->IsDevice()
&& fDiskInitMenu->CountItems() > 0);
fDeleteMI->SetEnabled(!partition->IsMounted()
&& !partition->IsDevice());
fMountMI->SetEnabled(!partition->IsMounted());
bool unMountable = false;
if (partition->IsMounted()) {
// see if this partition is the boot volume
BVolume volume;
BVolume bootVolume;
if (BVolumeRoster().GetBootVolume(&bootVolume) == B_OK
&& partition->GetVolume(&volume) == B_OK) {
unMountable = volume != bootVolume;
} else
unMountable = true;
}
fUnmountMI->SetEnabled(unMountable);
} else {
//.........这里部分代码省略.........