rectangle.java

动画素材图像语义标注系统：该系统实现对图片的语义标注

/**
 *  Rectangle.java - rectangle component.
 *  Mark Bryan Yu
 *  jimagemapper.sourceforge.net
 *
 * This file was modified by
 * Heiko Schroeder
 * wikiimagemapper.sourceforge.net
 *
 *  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
 *  (at your option) 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package cn.dxm.client;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.Point;
import java.util.Random;

public class Rectangle extends Shape {
    private  java.awt.Rectangle _retangle;
    
    private static java.awt.Rectangle currentRecatangle;
    
    public Rectangle(){
    	
    }

    public Rectangle(int x, int y, int width, int height) {
        this._retangle = new java.awt.Rectangle(x, y, width, height);
    }
	
	public Rectangle(int[] coords) {
		this._retangle = new java.awt.Rectangle(coords[0], coords[1], coords[2]-coords[0], coords[3]-coords[1]);
	}

    public void draw(Graphics2D g2d) {
    	Random r=new Random();
    	Color color=new Color(r.nextInt(255),r.nextInt(255),r.nextInt(255));
        g2d.setColor(color);
        g2d.drawRect((int) _retangle.x, (int) _retangle.y, (int) _retangle.width, (int) _retangle.height);
        if(active)
            drawHighlighted(g2d);
    }

    public void drawHighlighted(Graphics2D g2d) {
        g2d.setColor(new Color(1.0f, 1.0f, 1.0f, 0.15f));
        g2d.fillRect((int) _retangle.x+1, (int) _retangle.y+1, (int) _retangle.width-1, (int) _retangle.height-1);
    }
	
	public void updateCoordinates(Point layerLocation, Dimension layerSize,Point clickPoint, Point releasePoint)
	{
		
		double delta_x = releasePoint.getX()-clickPoint.getX();
		double delta_y = releasePoint.getY()-clickPoint.getY();
		
		
		
		//移动后的长方形必须限制在图片区域以内.
		if((this._retangle.x+(int)delta_x)<layerLocation.x){
			delta_x=layerLocation.x-this._retangle.x;
		}else if((this._retangle.x+(int)delta_x+this._retangle.width)>layerLocation.x+layerSize.width){
			delta_x=layerLocation.x+layerSize.width-this._retangle.x-this._retangle.width;
		}
		
		
		if((this._retangle.y+(int)delta_y)<layerLocation.y){
			delta_y=layerLocation.y-this._retangle.y;
		}else if((this._retangle.y+(int)delta_y+this._retangle.height)>layerLocation.y+layerSize.height){
			delta_y=layerLocation.y+layerSize.height-this._retangle.y-this._retangle.height;
		}
		
		this._retangle.translate((int)delta_x,(int)delta_y);
	}

    public boolean contains(Point p) {
        return _retangle.contains(p);
    }

    public int getX() {
        return this._retangle.x;
    }

    public int getY() {
        return this._retangle.y;
    }

    public int getHeight() {
        return this._retangle.height;
    }

    public int getWidth() {
        return this._retangle.width;
    }

	public java.awt.Rectangle get_retangle() {
		return _retangle;
	}

	public void set_retangle(java.awt.Rectangle _retangle) {
		this._retangle = _retangle;
	}

	public static java.awt.Rectangle getCurrentRecatangle() {
		return currentRecatangle;
	}

	public static void setCurrentRecatangle(java.awt.Rectangle currentRecatangle) {
		Rectangle.currentRecatangle = currentRecatangle;
	}
}