jm.gui.wave.WaveRuler Maven / Gradle / Ivy
/*
Copyright (C) 2000 Andrew Sorensen & Andrew Brown
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or any
later version.
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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package jm.gui.wave;
import jm.audio.io.SampleIn;
import jm.audio.Instrument;
import java.awt.*;
import java.awt.event.*;
/*
* A part of the jMusic audio wave file viewing package
* @author Andrew Brown
*/
public class WaveRuler extends Panel implements MouseListener, MouseMotionListener {
private WaveScrollPanel scrollPanel;
private int markerWidth, startX;
private double tempRes;
private Font font = new Font("Helvetica", Font.PLAIN, 9);
private int startSecond = 0;
public WaveRuler() {
super();
setBackground(Color.lightGray);
this.setSize(new Dimension(600,20));
this.addMouseListener(this);
this.addMouseMotionListener(this);
}
/*
* Set up a link with the object tht contains this ruler.
*/
public void setWaveScrollPanel(WaveScrollPanel scrollPanel) {
this.scrollPanel = scrollPanel;
}
public void setMarkerWidth(int newWidth) {
if (newWidth > 0) {
this.markerWidth = newWidth;
repaint();
}
}
public void paint(Graphics g) {
g.setColor(Color.darkGray);
g.setFont(font);
int max = this.getSize().width;
int startLoc = -1 * scrollPanel.getWaveView().getStartPos();
int secInc = markerWidth;
int tenthInc = (int)Math.round(markerWidth/10.0);
int centInc = (int)Math.round(markerWidth/100.0);
int milliInc = (int)Math.round(markerWidth/1000.0);
int res = scrollPanel.getWaveView().getResolution();
startSecond= scrollPanel.getWaveView().getStartPos() /
scrollPanel.getWaveView().getSampleRate() /
scrollPanel.getWaveView().getChannels();
// 1000ths of seconds
int counter = 0;
g.setColor(Color.white);
if (markerWidth > 20000) {
for(int j=startLoc/res; j < max; j += secInc) {
for(int k=0; k < 10; k++) {
for(int m=0; m < 10; m++) {
for(int i=0; i < 10; i++) {
if(counter%10 != 0) {
int pos = j+k*tenthInc+m*centInc+i*milliInc;
g.drawLine (pos, getSize().height/8 * 7, pos, getSize().height);
if (markerWidth>40000) g.drawString(""+ (startSecond + counter/1000.0),
pos + 2, getSize().height - 1);
}
counter++;
}
}
}
}
}
// 100ths of seconds
counter = 0;
g.setColor(Color.magenta);
if (markerWidth > 1200) {
for(int j=startLoc/res; j < max; j += secInc) {
for(int k=0; k < 10; k++) {
for(int i=0; i < 10; i++) {
if(counter%10 != 0) {
int pos = j+k*tenthInc+i*centInc;
g.drawLine (pos, getSize().height/4 * 3, pos, getSize().height);
if (markerWidth>4800) g.drawString(""+ (startSecond + counter/100.0),
pos + 2, getSize().height - 1);
}
counter++;
}
}
}
}
// 10th of seconds
counter = 0;
g.setColor(Color.blue);
if (markerWidth > 150) {
for(int j=startLoc/res; j < max; j += secInc) {
for(int i=0; i < 10; i++) {
if(counter%10 != 0) {
int pos = j+i*tenthInc;
g.drawLine (pos, getSize().height/2, pos, getSize().height);
if (markerWidth>300) g.drawString(""+ (startSecond + counter/10.0), pos + 2,
getSize().height - 1);
}
counter++;
}
}
}
// seconds
counter = 0;
g.setColor(Color.red);
for(int i=startLoc/res; i < max; i += secInc) {
g.drawLine (i, 1, i, getSize().height);
if (markerWidth>20 && markerWidth <= 300) g.drawString(""+ (startSecond + counter), i+ 2,
getSize().height - 1); // single digit
else if (markerWidth>300) g.drawString(""+(startSecond + counter/ 1.0), i+ 2,
getSize().height - 1); // with decimal place
counter++;
}
}
// get the position of inital mouse click
public void mousePressed(MouseEvent e) {
//System.out.println("Pressed");
this.setCursor(new Cursor(10));
startX = e.getX();
tempRes = (double)scrollPanel.getWaveView().getResolution();
}
//Mouse Listener stubs
public void mouseClicked(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
this.setCursor(new Cursor(13));
scrollPanel.getWaveView().setResolution((int)tempRes);
}
//mouseMotionListener stubs
public void mouseMoved(MouseEvent e) {}
public void mouseDragged(MouseEvent e) {
int dist = 5;
if (e.getX() > startX + dist) {
if (tempRes < 8.0) tempRes = Math.round(tempRes / 2.0);
else tempRes = Math.round(tempRes / 1.1);
if (tempRes < 1.0) tempRes = 1.0;
if (tempRes > 2048.0) tempRes = 2048.0; // 8000
scrollPanel.setResolution((int)Math.round(tempRes));
startX = e.getX();
repaint();
}
if (e.getX() < startX - dist) {
if (tempRes < 8.0) tempRes = Math.round(tempRes * 2.0);
else tempRes = Math.round(tempRes * 1.1);
if (tempRes < 1.0) tempRes = 1.0;
if (tempRes > 2048.0) tempRes = 2048.0; // 8000
scrollPanel.setResolution((int)Math.round(tempRes));
startX = e.getX();
repaint();
}
}
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