推荐编码方法(java) - 编程入门网
作者 佚名技术
来源 NET编程
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发布时间 2012-06-25
| the "super" // version of whatever you override: super.processComponentEvent(e); } public void processFocusEvent(FocusEvent e) { switch(e.getID()) { case FocusEvent.FOCUS_GAINED: display.evnt[Display.FOCUS] = "FOCUS gained"; break; case FocusEvent.FOCUS_LOST: display.evnt[Display.FOCUS] = "FOCUS lost"; break; default: } repaint(); super.processFocusEvent(e); } public void processKeyEvent(KeyEvent e) { switch(e.getID()) { case KeyEvent.KEY_PRESSED: display.evnt[Display.KEY] = "KEY pressed: "; break; case KeyEvent.KEY_RELEASED: display.evnt[Display.KEY] = "KEY released: "; break; case KeyEvent.KEY_TYPED: display.evnt[Display.KEY] = "KEY typed: "; break; default: } int code = e.getKeyCode(); display.evnt[Display.KEY] += KeyEvent.getKeyText(code); repaint(); super.processKeyEvent(e); } public void processMouseEvent(MouseEvent e) { switch(e.getID()) { case MouseEvent.MOUSE_CLICKED: requestFocus(); // Get FOCUS on click display.evnt[Display.MOUSE] = "MOUSE clicked"; break; case MouseEvent.MOUSE_PRESSED: display.evnt[Display.MOUSE] = "MOUSE pressed"; break; case MouseEvent.MOUSE_RELEASED: display.evnt[Display.MOUSE] = "MOUSE released"; break; case MouseEvent.MOUSE_ENTERED: display.evnt[Display.MOUSE] = "MOUSE entered"; break; case MouseEvent.MOUSE_EXITED: display.evnt[Display.MOUSE] = "MOUSE exited"; break; default: } display.evnt[Display.MOUSE] += ", x = " + e.getX() + ", y = " + e.getY(); repaint(); super.processMouseEvent(e); } public void processMouseMotionEvent(MouseEvent e) { switch(e.getID()) { case MouseEvent.MOUSE_DRAGGED: display.evnt[Display.MOUSE_MOVE] = "MOUSE dragged"; break; case MouseEvent.MOUSE_MOVED: display.evnt[Display.MOUSE_MOVE] = "MOUSE moved"; break; default: } display.evnt[Display.MOUSE_MOVE] += ", x = " + e.getX() + ", y = " + e.getY(); repaint(); super.processMouseMotionEvent(e); } } class MyButton extends Button { int clickCounter; String label = ""; public MyButton() { enableEvents(AWTEvent.ACTION_EVENT_MASK); } public void paint(Graphics g) { g.setColor(Color.green); Dimension s = getSize(); g.fillRect(0, 0, s.width, s.height); g.setColor(Color.black); g.drawRect(0, 0, s.width - 1, s.height - 1); drawLabel(g); } private void drawLabel(Graph |
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