Пример #1
0
void
FontManager::MessageReceived(BMessage* message)
{
	switch (message->what) {
		case B_NODE_MONITOR:
		{
			// TODO: support removing fonts!

			int32 opcode;
			if (message->FindInt32("opcode", &opcode) != B_OK)
				return;

			switch (opcode) {
				case B_ENTRY_CREATED:
				{
					const char* name;
					node_ref nodeRef;
					if (message->FindInt32("device", &nodeRef.device) != B_OK
						|| message->FindInt64("directory", &nodeRef.node) != B_OK
						|| message->FindString("name", &name) != B_OK)
						break;

					// TODO: make this better (possible under Haiku)
					snooze(100000);
						// let the font be written completely before trying to open it

					BEntry entry;
					if (set_entry(nodeRef, name, entry) != B_OK)
						break;

					if (entry.IsDirectory()) {
						// a new directory to watch for us
						_AddPath(entry);
					} else {
						// a new font
						font_directory* directory = _FindDirectory(nodeRef);
						if (directory == NULL) {
							// unknown directory? how come?
							break;
						}

						_AddFont(*directory, entry);
					}
					break;
				}

				case B_ENTRY_MOVED:
				{
					// has the entry been moved into a monitored directory or has
					// it been removed from one?
					const char* name;
					node_ref nodeRef;
					uint64 fromNode;
					uint64 node;
					if (message->FindInt32("device", &nodeRef.device) != B_OK
						|| message->FindInt64("to directory", &nodeRef.node) != B_OK
						|| message->FindInt64("from directory", (int64 *)&fromNode) != B_OK
						|| message->FindInt64("node", (int64 *)&node) != B_OK
						|| message->FindString("name", &name) != B_OK)
						break;

					font_directory* directory = _FindDirectory(nodeRef);

					BEntry entry;
					if (set_entry(nodeRef, name, entry) != B_OK)
						break;

					if (directory != NULL) {
						// something has been added to our watched font directories

						// test, if the source directory is one of ours as well
						nodeRef.node = fromNode;
						font_directory* fromDirectory = _FindDirectory(nodeRef);

						if (entry.IsDirectory()) {
							if (fromDirectory == NULL) {
								// there is a new directory to watch for us
								_AddPath(entry);
								FTRACE("new directory moved in");
							} else {
								// A directory from our watched directories has
								// been renamed or moved within the watched
								// directories - we only need to update the
								// path names of the styles in that directory
								nodeRef.node = node;
								directory = _FindDirectory(nodeRef);
								if (directory != NULL) {
									for (int32 i = 0; i < directory->styles.CountItems(); i++) {
										FontStyle* style = directory->styles.ItemAt(i);
										style->UpdatePath(directory->directory);
									}
								}
								FTRACE("directory renamed");
							}
						} else {
							if (fromDirectory != NULL) {
								// find style in source and move it to the target
								nodeRef.node = node;
								FontStyle* style = fromDirectory->FindStyle(nodeRef);
								if (style != NULL) {
									fromDirectory->styles.RemoveItem(style, false);
									directory->styles.AddItem(style);
									style->UpdatePath(directory->directory);
								}
								FTRACE(("font moved"));
							} else {
								FTRACE(("font added: %s\n", name));
								_AddFont(*directory, entry);
							}
						}
					} else {
						// and entry has been removed from our font directories
						if (entry.IsDirectory()) {
							if (entry.GetNodeRef(&nodeRef) == B_OK
								&& (directory = _FindDirectory(nodeRef)) != NULL)
								_RemoveDirectory(directory);
						} else {
							// remove font style from directory
							_RemoveStyle(nodeRef.device, fromNode, node);
						}
					}
					break;
				}

				case B_ENTRY_REMOVED:
				{
					node_ref nodeRef;
					uint64 directoryNode;
					if (message->FindInt32("device", &nodeRef.device) != B_OK
						|| message->FindInt64("directory", (int64 *)&directoryNode) != B_OK
						|| message->FindInt64("node", &nodeRef.node) != B_OK)
						break;

					font_directory* directory = _FindDirectory(nodeRef);
					if (directory != NULL) {
						// the directory has been removed, so we remove it as well
						_RemoveDirectory(directory);
					} else {
						// remove font style from directory
						_RemoveStyle(nodeRef.device, directoryNode, nodeRef.node);
					}
					break;
				}
			}
			break;
		}
	}
}