C++ BMenu::Superitem方法代码示例

// PopulateMenu
void
FontValueView::_PolulateMenu(BMenu* menu, BHandler* target,
							 const char* markedFamily,
							 const char* markedStyle)
{
	if (!menu)
		return;

	FontManager* manager = FontManager::Default();

	if (!manager->Lock())
		return;

	BMenu* fontMenu = NULL;

	font_family family;
	font_style style;

	int32 count = manager->CountFontFiles();
	for (int32 i = 0; i < count; i++) {
		if (!manager->GetFontAt(i, family, style))
			break;

		BMessage* message = new BMessage(MSG_FONT_CHANGED);
		message->AddString("font family", family);
		message->AddString("font style", style);

		FontMenuItem* item = new FontMenuItem(style, family, style,
											  message);
		item->SetTarget(target);

		bool markStyle = false;
		if (!fontMenu
			|| (fontMenu->Name()
				&& strcmp(fontMenu->Name(), family) != 0)) {
			// create new entry
			fontMenu = new BMenu(family);
			fontMenu->AddItem(item);
			menu->AddItem(fontMenu);
			// mark the menu if necessary
			if (markedFamily && strcmp(markedFamily, family) == 0) {
				if (BMenuItem* superItem = fontMenu->Superitem())
					superItem->SetMarked(true);
				markStyle = true;
			}
		} else {
			// reuse old entry
			fontMenu->AddItem(item);
		}
		// mark the item if necessary
		if (markStyle && markedStyle && strcmp(markedStyle, style) == 0)
			item->SetMarked(true);
	}
	
	manager->Unlock();
}

void
QPopupMenu::EntryCreated(const entry_ref &ref, ino_t node)
{
	BNode file;
	if (file.SetTo(&ref) < B_OK)
		return;

	// Make sure the pop-up menu is ready for additions.  Need a bunch of
	// groups at the top, a divider line, and miscellaneous people added below
	// the line.

	int32 items = CountItems();
	if (!items)
		AddSeparatorItem();

	// Does the file have a group attribute?  OK to have none.
	BString groups;
	const char *kNoGroup = "NoGroup!";
	file.ReadAttrString("META:group", &groups);
	if (groups.Length() <= 0)
		groups = kNoGroup;

	// Add the e-mail address to the all people group.  Then add it to all the
	// group menus that it exists in (based on the comma separated list of
	// groups from the People file), optionally making the group menu if it
	// doesn't exist.  If it's in the special NoGroup!  list, then add it below
	// the groups.

	bool allPeopleGroupDone = false;
	BMenu *groupMenu;
	do {
		BString group;

		if (!allPeopleGroupDone) {
			// Create the default group for all people, if it doesn't exist yet.
			group = "All People";
			allPeopleGroupDone = true;
		} else {
			// Break out the next group from the comma separated string.
			int32 comma;
			if ((comma = groups.FindFirst(',')) > 0) {
				groups.MoveInto(group, 0, comma);
				groups.Remove(0, 1);
			} else
				group.Adopt(groups);
		}

		// trim white spaces
		int32 i = 0;
		for (i = 0; isspace(group.ByteAt(i)); i++) {}
		if (i)
			group.Remove(0, i);
		for (i = group.Length() - 1; isspace(group.ByteAt(i)); i--) {}
		group.Truncate(i + 1);

		groupMenu = NULL;
		BMenuItem *superItem = NULL; // Corresponding item for group menu.

		if (group.Length() > 0 && group != kNoGroup) {
			BMenu *sub;

			// Look for submenu with label == group name
			for (int32 i = 0; i < items; i++) {
				if ((sub = SubmenuAt(i)) != NULL) {
					superItem = sub->Superitem();
					if (!strcmp(superItem->Label(), group.String())) {
						groupMenu = sub;
						i++;
						break;
					}
				}
			}

			// If no submenu, create one
			if (!groupMenu) {
				// Find where it should go (alphabetical)
				int32 mindex = 0;
				for (; mindex < fGroups; mindex++) {
					if (strcmp(ItemAt(mindex)->Label(), group.String()) > 0)
						break;
				}

				groupMenu = new BMenu(group.String());
				groupMenu->SetFont(be_plain_font);
				AddItem(groupMenu, mindex);

				superItem = groupMenu->Superitem();
				superItem->SetMessage(new BMessage(B_SIMPLE_DATA));
				if (fTargetHandler)
					superItem->SetTarget(fTargetHandler);

				fGroups++;
			}
		}

		BString	name;
		file.ReadAttrString("META:name", &name);

		BString email;
		file.ReadAttrString("META:email", &email);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
		case MENU_DISTANCE:
			ConfigDistance();
			break;
/*		case MENU_SQL:
			ConfigSQLTables();
			break; */
		case MENU_ABOUT: {
			BString about;
			about = "\n\n" APP_NAME " " APP_VERSION "\n";
			about += "English-Polish, Polish-English dictionary\n";
			about += "\n\nBeOS version:\n";
			about += "Maciej Witkowiak <[email protected]>";
			about += "\n\nSAP engine based on sap v0.2b\n";
			about += "(c) 1998 Bohdan R. Rau,\n(c) 2001 Daniel Mealha Cabrita";
			about += "\nYDP and SQL engines by Maciej Witkowiak\n";
			about += "\n\nSoftware released under GNU/GPL license";
			about += "\n\nvisit:\n";
			about += "http://home.elysium.pl/ytm/html/beos.html\n";
			about += "\nDevelopment has been encouraged by:\n";
			about += "http://www.haiku-os.pl";
			outputView->SetText(about.String()); }
			break;
		case FONT_SIZE:
		{
			float fontSize;
			Message->FindFloat("size",&fontSize);
			SetFontSize(fontSize);
		}
		break;
		case FONT_FAMILY:
		{
			const char * fontFamily = 0, * fontStyle = 0;
			void * ptr;
			if (Message->FindPointer("source",&ptr) == B_OK) {
				currentFontItem = static_cast<BMenuItem*>(ptr);
				fontFamily = currentFontItem->Label();
			}
			SetFontStyle(fontFamily, fontStyle);
		}
		case FONT_STYLE:
		{
			const char * fontFamily = 0, * fontStyle = 0;
			void * ptr;
			if (Message->FindPointer("source",&ptr) == B_OK) {
				BMenuItem * item = static_cast<BMenuItem*>(ptr);
				fontStyle = item->Label();
				BMenu * menu = item->Menu();
				if (menu != 0) {
					currentFontItem = menu->Superitem();
					if (currentFontItem != 0) {
						fontFamily = currentFontItem->Label();
					}
				}
			}
			SetFontStyle(fontFamily, fontStyle);
		}
		case MSG_SCROLL:
//			printf("scroll value changed\n");
			if (scrollBar->Value() != dictList->topIndex) {
				dictList->ListScrolled(scrollBar->Value());
				myDict->GetDefinition(myDict->wordPairs[dictList->topIndex+dictList->CurrentSelection(0)]);
			}
			break;
		case MSG_COLOURUPDATE:
//			printf("colour update\n");
			myDict->ReGetDefinition();
			break;
		case MSG_FUZZYUPDATE:
//			printf("fuzzy update\n");
			if (config->searchmode == SEARCH_FUZZY)
				HandleModifiedInput(true);
			break;
/*		case MSG_SQLTABLESUPDATE:
//			printf("sql tables updated\n");
			myDict->FlushCache();
			SwitchEngine(config->dictionarymode);
			break; */
		case B_CLIPBOARD_CHANGED:
			NewClipData();
			break;
		case B_REFS_RECEIVED:
			RefsReceived(Message);
			break;
		case B_CANCEL:
//			printf("canceled\n");
			if (firstStart) {
				config->dictionarymode = DICTIONARY_SAP;	// will be saved in QuitRequested below
				BAlert *alert = new BAlert(APP_NAME, "Couldn't open dictionary. Dictionary engine has been reset to SAP.", "OK", NULL, NULL, B_WIDTH_AS_USUAL, B_STOP_ALERT);
				alert->Go();
				QuitRequested();
			}
			else
				delete myPanel;
//			break;
		default:
			BWindow::MessageReceived(Message);
			break;
	}
	this->EnableUpdates();
}