TimelineMarker.java

/*******************************************************************************
 * Catroid: An on-device visual programming system for Android devices
 *  Copyright (C) 2010-2013 The Catrobat Team
 *  (<http://developer.catrobat.org/credits>)
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 *
 *  An additional term exception under section 7 of the GNU Affero
 *  General Public License, version 3, is available at
 *  http://www.catroid.org/catroid/licenseadditionalterm
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package org.catrobat.musicdroid.soundmixer.timeline;

import android.content.Context;
import android.graphics.Color;
import android.view.View;
import android.widget.RelativeLayout;
import android.widget.RelativeLayout.LayoutParams;

import org.catrobat.musicdroid.soundmixer.SoundMixer;

/**
 * @author matthias schlesinger
 */
public class TimelineMarker extends View {

	public TimelineMarker(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}

	public TimelineMarker(Context context, int second, int timelineHeight) {
		super(context);

		int pixelPerSecond = SoundMixer.getInstance().getPixelPerSecond();

		LayoutParams markerParams = second % 5 == 0 ? new RelativeLayout.LayoutParams(2, timelineHeight * 2 / 5)
				: new RelativeLayout.LayoutParams(2, timelineHeight * 4 / 8);

		markerParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
		markerParams.addRule(RelativeLayout.ALIGN_LEFT);
		markerParams.leftMargin = pixelPerSecond * second;
		setLayoutParams(markerParams);
		setBackgroundColor(Color.BLACK);
	}

}