Иллюстрированный самоучитель по Java



Компонент Canvas - часть 2


g.drawOvalfx + 3*w/10 -6, у + h/3 - 4, w/5, w/5) ; 

g.drawOval(x + w/2 - б, у + h/3 - 4, w/5, w/5); } 

public void paint(Graphics g){

int w = getSizeO.width, h = getSize().height; 

if (isDown){

g.drawLine(0, 0, w - 1, 0) ; 

g.drawLined, 1, w - I, I); 

g.drawLine(0, 0, 0, h - 1); 

g.drawUne (1, 1, 1, h - 1); 

drawFlower(g, 8, 10, w, h); 

}

else

{

g.drawLine(0, h - 2, w - 2, h - 2); 

g.drawLined, h - 1, w - I, h - I); 

g.drawLinefw - 2, h - 2, w - 2, 0); 

g.drawLinefw - 1, h - 1, w - 1, 1); 

drawFlower (g, 6, 8, w, h) ; } }

public void mousePressed(MouseEvent e){ 

isDown=true; repaint(); }

public void mouseReleased(MouseEvent e){ 

isDown=false; repaint(); }

public void mouseEntered(MouseEvent e){} 

public void mouseExited(MouseEvent e) {} 

public void mouseClicked(MouseEvent e){) 

}

class DrawButton extends Frame{ 

DrawButton(String s) { 

super (s) ; 

setLayout(null);

Button b = new Button("OK"); 

b.setBounds(200, 50, 100, 60); add(b);

FlowerButton d = new FlowerButton(); 

d.setBounds(50, 50, 100, 60); add(d);

setSize(400, 150); 

setVisible(true);

}

public static void main(String[] args){

Frame f= new DrawButton(" Кнопка с рисунком"); 

f.addWindowListener(new WindowAdapter()(

public void windowClosing(WindowEvent ev){

System.exit(0);  

}

}); 

}

 Рис. 10.7.

Кнопка с рисунком




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