The downloads menu can be accessed through the button on the right side of the main menu. The downloader supports searching and concurrent downloads (NOTE: this is limited by the download server!). Double-click any search result to begin downloading it to the SongPacks directory; cancel the download by hitting the red 'x' in the upper-right corner. A confirmation will appear if trying to quit opsu! while downloads are running.
New classes:
- Download: represents an individual download from a remote address to a local path, and provides status and progress information; downloads files using Java NIO.
- DownloadNode: holds a Download object as well as additional beatmap fields, and handles drawing.
- DownloadList: manages the current list of downloads.
- DownloadsMenu: game state controller.
- DownloadServer: interface for a beatmap download server.
- BloodcatServer: implements DownloadServer using Bloodcat.
- ReadableByteChannelWrapper: wrapper for ReadableByteChannel that tracks progress.
Added images:
- "downloads" image by @kouyang.
- "search-background" image from "Minimalist Miku" skin (listed in credits).
- "delete" icon by Visual Pharm (https://www.iconfinder.com/icons/27842/) under CC BY-ND 3.0.
Other changes:
- Added up/down/left/right Expand directions to MenuButton class.
- Removed width/height parameters from OsuParser (leftovers).
Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>