view/std/PianoRollPainter.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2008 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler.view.std;

import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Rectangle;


/**
 *
 * @author Grigor Iliev
 */
public interface PianoRollPainter {
        public void paint(PianoRoll pianoRoll, Graphics2D g);
        
        /**
         * Gets the index of the key containing the specified point.
         * @return Number between 0 and 127 (inclusive) as specified in the MIDI standard.
         */
        public int getKeyByPoint(Point p);
        
        /**
         * Gets the rectangle in which the key is drawn and empty rectangle
         * if the specified key is not shown on the piano roll or is invalid.
         * Used to optimize the repainting process.
         */
        public Rectangle getKeyRectangle(int key);
        
        /**
         * Gets the velocity of the specified key based on the specified point.
         */
        public int getVelocity(Point p, int key);
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2005-2008 Grigor Iliev <grigor@grigoriliev.com>
5	*
6	* This file is part of JSampler.
7	*
8	* JSampler is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License version 2
10	* as published by the Free Software Foundation.
11	*
12	* JSampler is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with JSampler; if not, write to the Free Software
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20	* MA 02111-1307 USA
21	*/
22
23	package org.jsampler.view.std;
24
25	import java.awt.Graphics2D;
26	import java.awt.Point;
27	import java.awt.Rectangle;
28
29
30	/**
31	*
32	* @author Grigor Iliev
33	*/
34	public interface PianoRollPainter {
35	public void paint(PianoRoll pianoRoll, Graphics2D g);
36
37	/**
38	* Gets the index of the key containing the specified point.
39	* @return Number between 0 and 127 (inclusive) as specified in the MIDI standard.
40	*/
41	public int getKeyByPoint(Point p);
42
43	/**
44	* Gets the rectangle in which the key is drawn and empty rectangle
45	* if the specified key is not shown on the piano roll or is invalid.
46	* Used to optimize the repainting process.
47	*/
48	public Rectangle getKeyRectangle(int key);
49
50	/**
51	* Gets the velocity of the specified key based on the specified point.
52	*/
53	public int getVelocity(Point p, int key);
54	}