/*- * Copyright 2005-2018 Diomidis Spinellis * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package gr.aueb.card;import java.awt.Color;import java.awt.Graphics;import java.util.Vector;import javax.swing.JPanel;/** * The Holiday Card program main class. * * @author Georgios Zouganelis * Draw components from this object to reduce flickering. */public class DrawablePanel extends JPanel {/** The DrawPanel this DrawablePanel is attached to **/private DrawPanel controller =null;/** Serial number of persistent data. * Required, because JPanel implements serializable. */private static final long serialVersionUID =1L;/** * Constructor to initialize the DrawablePanel with it's controller * */publicDrawablePanel(DrawPanel panel) {
controller = panel;}/** * Perform all drawing operations * By overriding the JPanel method and initiating all the drawing * from this place we take advantage of JPanel's double-buffering * capability. */@Overridepublic voidpaintComponent(Graphics g){super.paintComponent(g);setBackground(DrawPanel.BACKGROUND_COLOR);// Ask our controller for a copy of items to draw
Vector<Drawable> toPaint = controller.getDrawables();for(Drawable d : toPaint)
d.draw(g);}}