GuiMusicSlot.java

package vazkii.minetunes.gui;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.renderer.Tessellator;
import vazkii.minetunes.MineTunes;
import vazkii.minetunes.player.chooser.action.ActionPlayMp3;
import vazkii.minetunes.playlist.MP3Metadata;
import vazkii.minetunes.playlist.Playlist;

public class GuiMusicSlot extends GuiScrollingListMT {

	GuiPlaylistManager parent;

	public GuiMusicSlot(GuiPlaylistManager parent) {
		super(parent.width - 200, parent.height - parent.getTopSize(), parent.getTopSize(), 200, 40);
		this.parent = parent;
	}

	@Override
	protected int getSize() {
		return parent.visibleSongs.size();
	}

	@Override
	protected void elementClicked(int i, boolean doubleclick) {
		MP3Metadata metadata = parent.visibleSongs.get(i);
		
		if(doubleclick) {
			int index = parent.getSelectedPlaylistIndex();
			Playlist playlist = parent.getSelectedPlaylist();
			if(playlist != null) {
				ActionPlayMp3.instance.play(metadata);
				parent.selectCurrentPlaylist(index, i);
			}
		}

		parent.selectSong(metadata);
	}

	@Override
	protected boolean isSelected(int i) {
		return parent.visibleSongs.get(i) == parent.getSelectedSong();
	}

	@Override
	protected void drawSlot(int i, int j, int k, int l, Tessellator tessellator) {
		MP3Metadata metadata = parent.visibleSongs.get(i);
		if(metadata != null) {
			FontRenderer font = Minecraft.getMinecraft().fontRendererObj;
			boolean selected = isSelected(i);

			int s = j + 20 - listWidth;

			boolean playing = false;
			float playedFraction = 0;
			boolean paused = false;
			if(MineTunes.musicPlayerThread != null) {
				MP3Metadata playingMeta = MineTunes.musicPlayerThread.getPlayingMetadata();
				if(playingMeta != null && playingMeta.isEqualFile(metadata)) {
					playing = true;
					playedFraction = MineTunes.musicPlayerThread.getFractionPlayed();
					paused = MineTunes.musicPlayerThread.isPaused();
				}
			}

			int colorMain = playing ? 0xAAFFFF : 0xFFFFFF;
			int colorSub = playing ? 0x00AAAA : 0xAAAAAA;
			int colorLength = playing ? paused ? 0xFF5555 : 0x55FF55 : 0x555555;
			int colorBg = 0x44000000;

			if(!selected)
				parent.drawBox(s - 6, k + 2, listWidth + 6, 32);

			font.drawStringWithShadow(metadata.title, s, k + 3, colorMain);
			font.drawStringWithShadow(metadata.artist, s + 4, k + 13, colorSub);
			font.drawStringWithShadow(metadata.album, s + 4, k + 23, colorSub);

			GL11.glScalef(2F, 2F, 2F);
			String length = metadata.length;

			if(playing)
				length = MP3Metadata.getLengthStr((int) (metadata.lengthMs * playedFraction)) + "/" + length;

			font.drawString(length, (j - 2) / 2 - font.getStringWidth(length), (k + 6) / 2, colorLength);
			GL11.glScalef(0.5F, 0.5F, 0.5F);
		}
	}
}