package com.sin.java.plot;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

/**

* 绘图面板鼠标监听器

*

* @author RobinTang

*

*/

public class PlotPanleMouseListener implements MouseListener, MouseMotionListener {

private PlotPanle panle = null;

private int downX;

private int downY;

public PlotPanleMouseListener(PlotPanle panle) {

super();

this.panle = panle;

}

@Override

public void mouseClicked(MouseEvent e) {

int ix = panle.getDrawableObjectByXY(e.getX(), e.getY());

if (ix >= 0) {

panle.toggleShow(ix);

} else if (e.getClickCount() >= 2) {

if (e.getButton() == MouseEvent.BUTTON1)

panle.zoomIn(e.getX(), e.getY());

else if (e.getButton() == MouseEvent.BUTTON3) {

panle.zoomOut(e.getX(), e.getY());

}

}

}

@Override

public void mousePressed(MouseEvent e) {

downX = e.getX();

downY = e.getY();

}

@Override

public void mouseReleased(MouseEvent e) {

}

@Override

public void mouseEntered(MouseEvent e) {

}

@Override

public void mouseExited(MouseEvent e) {

this.panle.updateUI();

}

@Override

public void mouseDragged(MouseEvent e) {

int x = e.getX();

int y = e.getY();

int w = panle.getWidth();

int h = panle.getHeight();

double sx = ((double) (downX - x)) / ((double) w);

double sy = ((double) (y - downY)) / ((double) h);

this.panle.moveAxis(sx, sy);

downX = e.getX();

downY = e.getY();

}

@Override

public void mouseMoved(MouseEvent e) {

this.panle.setCursorPoint(e.getX(), e.getY());

}

}