色完了.java

import java.util.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;

class Paint4 extends Frame implements MouseListener,MouseMotionListener,ActionListener{
    int x,y;
    ArrayList<Figure> objList;
    CheckboxGroup cbg;
    Checkbox c1,c2,c3,c4;
    CheckboxGroup col;//追加
    Checkbox col1,col2,col3;//追加
    Button end;
    int mode=0;
    Figure obj;
    public static void main(String args[]){
        Paint4 f=new Paint4();
        f.setSize(640,480);
        f.setTitle("drawing");
        f.addWindowListener(new WindowAdapter(){
            @Override public void windowClosing(WindowEvent e){
                System.exit(0);
            }});
        f.setVisible(true);

        if(args.length==1)f.load(args[0]);
    }

    Paint4(){
        objList=new ArrayList<Figure>();//ArrayListに描画され終わった奴が保存される。
        //画面作成
        cbg=new CheckboxGroup();
        c1=new Checkbox("丸",cbg,true);//代入してる。
        c2=new Checkbox("円",cbg,false);
        c3=new Checkbox("四角",cbg,false);
        c4=new Checkbox("線",cbg,false);

        col=new CheckboxGroup();
        col1=new Checkbox("黒",col,true);
        col2=new Checkbox("赤",col,false);
        col3=new Checkbox("青",col,false);

        end=new Button("終了");

        c1.setBounds(560,30,60,30);//選択箇所の座標決め
        c2.setBounds(560,60,60,30);
        c3.setBounds(560,90,60,30);
        c4.setBounds(560,120,60,30);

        col1.setBounds(560,180,60,30);
        col2.setBounds(560,210,60,30);
        col3.setBounds(560,240,60,30);

        end.setBounds(560,400,60,30);
        setLayout(null);

        add(c1);
        add(c2);
        add(c3);
        add(c4);

        add(col1);
        add(col2);
        add(col3);

        add(end);
        //マウス処理
        addMouseListener(this);
        addMouseMotionListener(this);
        //終了ボタン処理
        end.addActionListener(this);
    }
    public void save(String fname){
        try{
            FileOutputStream fos = new FileOutputStream(fname);
            ObjectOutputStream oos = new ObjectOutputStream(fos);
            oos.writeObject(objList);
            oos.close();
            fos.close();
        }catch(IOException e){
        }
    }
    @SuppressWarnings("unchecked")
    public void load(String fname){
        try{
            FileInputStream fis=new FileInputStream(fname);
            ObjectInputStream ois=new ObjectInputStream(fis);
            objList=(ArrayList<Figure>)ois.readObject();
            ois.close();
            fis.close();
        }catch(IOException e){
        }catch(ClassNotFoundException e){
        }
        repaint();
    }

    @Override public void paint(Graphics g){
        Figure f;
        for(int i=0;i<objList.size();i++){
            f=objList.get(i);
            f.paint(g);
        }
        if(mode>=1)obj.paint(g);
    }
    @Override public void actionPerformed(ActionEvent e){//終了ボタン
        save("paint.dat");
        System.exit(0);
    }
    @Override public void mousePressed(MouseEvent e){
        Checkbox zukei,iro;
        Color color=Color.black;

        x=e.getX();
        y=e.getY();

        zukei=cbg.getSelectedCheckbox();//チェックボックスのcbgで定義された部分の値を代入
        iro=col.getSelectedCheckbox();
        obj=null;

        if(iro==col1){
            color=Color.black;
        }else if(iro==col2){
            color=Color.red;
        }else if(iro==col3){
            color=Color.blue;
        }

        if(zukei==c1){
            mode=1;
            obj=new Dot(color);
        }else if(zukei==c2){
            mode=2;
            obj=new Circle(color);
        }else if(zukei==c3){
            mode=2;
            obj=new Rect(color);
        }else if(zukei==c4){
            mode=2;
            obj=new Line(color);
        }

        if(obj!=null){
            obj.moveto(x,y);
            repaint();
        }

    }
    @Override public void mouseReleased(MouseEvent e){
        x=e.getX();
        y=e.getY();
        if(mode==1) obj.moveto(x,y);
        else if (mode==2) obj.setWH(x-obj.x,y-obj.y);
        if(mode>=1){
            objList.add(obj);
            obj=null;
        }
        mode=0;
        repaint();
    }
    @Override public void mouseClicked(MouseEvent e){}
    @Override public void mouseEntered(MouseEvent e){}
    @Override public void mouseExited(MouseEvent e){}
    @Override public void mouseDragged(MouseEvent e){
        x=e.getX();
        y=e.getY();
        if(mode==1) obj.moveto(x,y);
        else if (mode==2) obj.setWH(x-obj.x,y-obj.y);
        repaint();
    }
    @Override public void mouseMoved(MouseEvent e){}
}

class Coord implements Serializable{
    int x,y;
    Coord(){
        x=y=0;
    }
    public void move(int dx,int dy){
        x+=dx;
        y+=dy;
    }
    public void moveto(int x,int y){
        this.x=x;
        this.y=y;
    }
}

class Figure extends Coord implements Serializable{
    Color color;
    int w,h;
    Figure(){
        w=h=0;
    }
    public void paint(Graphics g){}
    public void setWH(int w,int h){
        this.w=w;
        this.h=h;
    }
}

class Dot extends Figure implements Serializable{
    int size;
    Dot(Color color){
        this.color = color;
        size=10;
    }
    @Override public void paint(Graphics g){
        g.setColor(this.color);
        g.drawOval(x-size/2,y-size/2,size,size);
    }
}

class Circle extends Figure implements Serializable{
    Circle(Color color){
        this.color = color;
    }
    @Override public void paint(Graphics g){
        g.setColor(this.color);
        int r=(int)Math.sqrt((double)(w*w+h*h));
        g.drawOval(x-r,y-r,r*2,r*2);
    }
}

class Rect extends Figure implements Serializable{
    Rect(Color color){
        this.color = color;
    }
    @Override public void paint(Graphics g){
        g.setColor(this.color);
        g.drawRect(x,y,w,h);
    }
}

class Line extends Figure implements Serializable{
    Line(Color color){
        this.color = color;
    }
    @Override public void paint(Graphics g){
        g.setColor(this.color);
        g.drawLine(x,y,x+w,y+h);
    }
}