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7027683: /applets/GraphicsTest demo needs to be improved
Reviewed-by: alexp
This commit is contained in:
Alexander Kouznetsov
parent
68002d4098
commit
359dffbbeb
@ -1,5 +1,5 @@
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/*
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* Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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@ -29,8 +29,6 @@
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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*/
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import java.awt.Frame;
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import java.awt.Event;
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@ -38,66 +36,67 @@ import java.awt.Dimension;
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import java.applet.Applet;
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import java.awt.AWTEvent;
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// Applet to Application Frame window
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class AppletFrame extends Frame
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{
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/**
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* Applet to Application Frame window
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*/
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@SuppressWarnings("serial")
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class AppletFrame extends Frame {
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public static void startApplet(String className,
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String title,
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String args[])
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{
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// local variables
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Applet a;
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Dimension appletSize;
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String title,
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String args[]) {
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// local variables
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Applet a;
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Dimension appletSize;
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try
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{
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// create an instance of your applet class
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a = (Applet) Class.forName(className).newInstance();
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}
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catch (ClassNotFoundException e) { return; }
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catch (InstantiationException e) { return; }
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catch (IllegalAccessException e) { return; }
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try {
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// create an instance of your applet class
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a = (Applet) Class.forName(className).newInstance();
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} catch (ClassNotFoundException e) {
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return;
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} catch (InstantiationException e) {
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return;
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} catch (IllegalAccessException e) {
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return;
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}
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// initialize the applet
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a.init();
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a.start();
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// initialize the applet
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a.init();
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a.start();
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// create new application frame window
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AppletFrame f = new AppletFrame(title);
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// create new application frame window
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AppletFrame f = new AppletFrame(title);
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// add applet to frame window
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f.add("Center", a);
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// add applet to frame window
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f.add("Center", a);
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// resize frame window to fit applet
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// assumes that the applet sets its own size
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// otherwise, you should set a specific size here.
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appletSize = a.getSize();
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f.pack();
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f.setSize(appletSize);
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// resize frame window to fit applet
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// assumes that the applet sets its own size
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// otherwise, you should set a specific size here.
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appletSize = a.getSize();
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f.pack();
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f.setSize(appletSize);
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// show the window
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f.show();
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// show the window
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f.setVisible(true);
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} // end startApplet()
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// constructor needed to pass window title to class Frame
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public AppletFrame(String name)
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{
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// call java.awt.Frame(String) constructor
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super(name);
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public AppletFrame(String name) {
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// call java.awt.Frame(String) constructor
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super(name);
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}
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// needed to allow window close
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public void processEvent(AWTEvent e)
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{
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// Window Destroy event
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if (e.getID() == Event.WINDOW_DESTROY)
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{
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// exit the program
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System.exit(0);
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}
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} // end handleEvent()
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@Override
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public void processEvent(AWTEvent e) {
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// Window Destroy event
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if (e.getID() == Event.WINDOW_DESTROY) {
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// exit the program
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System.exit(0);
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}
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} // end handleEvent()
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} // end class AppletFrame
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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@ -29,22 +29,23 @@
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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*/
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import java.awt.*;
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import java.util.*;
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import java.awt.event.*;
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import java.applet.Applet;
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@SuppressWarnings("serial")
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class GraphicsPanel extends Panel {
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ActionListener al;
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ItemListener il;
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public GraphicsCards cards;
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GraphicsPanel(EventListener listener) {
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al = (ActionListener)listener;
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il = (ItemListener)listener;
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GraphicsPanel(EventListener listener) {
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al = (ActionListener) listener;
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il = (ItemListener) listener;
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setLayout(new BorderLayout());
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@ -78,62 +79,75 @@ class GraphicsPanel extends Panel {
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setSize(400, 400);
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}
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@Override
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public Dimension getPreferredSize() {
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return new Dimension(200, 100);
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}
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}
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@SuppressWarnings("serial")
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public class GraphicsTest extends Applet
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implements ActionListener, ItemListener {
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implements ActionListener, ItemListener {
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GraphicsPanel mainPanel;
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@Override
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public void init() {
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setLayout(new BorderLayout());
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add("Center", mainPanel = new GraphicsPanel(this));
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}
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@Override
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public void destroy() {
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remove(mainPanel);
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}
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@Override
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public void actionPerformed(ActionEvent e) {
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String arg = e.getActionCommand();
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if ("next".equals(arg)) {
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((CardLayout)mainPanel.cards.getLayout()).next(mainPanel.cards);
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}
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else if ("previous".equals(arg)) {
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((CardLayout)mainPanel.cards.getLayout()).previous(mainPanel.cards);
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((CardLayout) mainPanel.cards.getLayout()).next(mainPanel.cards);
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} else if ("previous".equals(arg)) {
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((CardLayout) mainPanel.cards.getLayout()).previous(mainPanel.cards);
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}
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}
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@Override
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public void itemStateChanged(ItemEvent e) {
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((CardLayout)mainPanel.cards.getLayout()).show(mainPanel.cards,(String)e.getItem());
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((CardLayout) mainPanel.cards.getLayout()).show(mainPanel.cards,
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(String) e.getItem());
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}
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public static void main(String args[]) {
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AppletFrame.startApplet("GraphicsTest", "Graphics Test", args);
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}
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@Override
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public String getAppletInfo() {
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return "An interactive demonstration of some graphics.";
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}
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} // end class GraphicsTest
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@SuppressWarnings("serial")
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class GraphicsCards extends Panel {
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public GraphicsCards() {
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setLayout(new CardLayout());
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add("Arc", new ArcCard());
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add("Oval", new ShapeTest( new OvalShape() ) );
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add("Polygon", new ShapeTest( new PolygonShape() ) );
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add("Rect", new ShapeTest( new RectShape() ) );
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add("RoundRect", new ShapeTest( new RoundRectShape() ) );
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add("Oval", new ShapeTest(new OvalShape()));
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add("Polygon", new ShapeTest(new PolygonShape()));
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add("Rect", new ShapeTest(new RectShape()));
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add("RoundRect", new ShapeTest(new RoundRectShape()));
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}
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} // end class GraphicsCards
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@SuppressWarnings("serial")
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class ArcCard extends Panel {
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public ArcCard() {
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setLayout(new GridLayout(0, 2));
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add(new ArcPanel(true));
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@ -144,7 +158,9 @@ class ArcCard extends Panel {
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} // end class ArcCard
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@SuppressWarnings("serial")
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class ArcDegreePanel extends Panel {
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boolean filled;
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public ArcDegreePanel(boolean filled) {
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@ -152,290 +168,262 @@ class ArcDegreePanel extends Panel {
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}
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void arcSteps(Graphics g,
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int step,
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int x,
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int y,
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int w,
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int h,
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Color c1,
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Color c2) {
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int a1 = 0;
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int a2 = step;
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int progress = 0;
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g.setColor(c1);
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for (; (a1+a2) <= 360; a1 = a1+a2, a2 += 1) {
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if (g.getColor() == c1) {
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g.setColor(c2);
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}
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else {
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g.setColor(c1);
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}
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int step,
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int x,
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int y,
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int w,
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int h,
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Color c1,
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Color c2) {
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int a1 = 0;
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int a2 = step;
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int progress = 0;
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g.setColor(c1);
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for (; (a1 + a2) <= 360; a1 = a1 + a2, a2 += 1) {
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if (g.getColor() == c1) {
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g.setColor(c2);
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} else {
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g.setColor(c1);
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}
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if (filled) {
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g.fillArc(x, y, w, h, a1, a2);
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}
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else {
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g.drawArc(x, y, w, h, a1, a2);
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}
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if (filled) {
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g.fillArc(x, y, w, h, a1, a2);
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} else {
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g.drawArc(x, y, w, h, a1, a2);
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}
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progress = a1+a2;
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} // end for
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progress = a1 + a2;
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} // end for
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if (progress != 360) {
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if (filled) {
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g.fillArc(x, y, w, h, a1, 360 - progress);
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}
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else {
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g.drawArc(x, y, w, h, a1, 360 - progress);
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}
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} // end if
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} // end arcSteps()
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if (progress != 360) {
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if (filled) {
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g.fillArc(x, y, w, h, a1, 360 - progress);
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} else {
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g.drawArc(x, y, w, h, a1, 360 - progress);
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}
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} // end if
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} // end arcSteps()
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@Override
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public void paint(Graphics g) {
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Rectangle r = getBounds();
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arcSteps(g, 3, 0, 0, r.width, r.height, Color.orange, Color.blue);
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arcSteps(g,
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2,
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r.width / 4,
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r.height / 4,
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r.width / 2,
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r.height / 2,
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Color.yellow,
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Color.green);
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2,
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r.width / 4,
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r.height / 4,
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r.width / 2,
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r.height / 2,
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Color.yellow,
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Color.green);
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arcSteps(g,
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1,
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(r.width * 3) / 8,
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(r.height * 3) / 8,
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r.width / 4,
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r.height / 4,
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Color.magenta,
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Color.white);
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1,
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(r.width * 3) / 8,
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(r.height * 3) / 8,
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r.width / 4,
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r.height / 4,
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Color.magenta,
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Color.white);
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} // end paint()
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} // end paint()
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} // end class ArcDegreePanel
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@SuppressWarnings("serial")
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class ArcPanel extends Panel {
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boolean filled;
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public ArcPanel(boolean filled) {
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this.filled = filled;
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}
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this.filled = filled;
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}
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public void paint(Graphics g)
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{
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Rectangle r = getBounds();
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@Override
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public void paint(Graphics g) {
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Rectangle r = getBounds();
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g.setColor(Color.yellow);
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if (filled)
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{
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g.fillArc(0, 0, r.width, r.height, 0, 45);
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}
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else
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{
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g.drawArc(0, 0, r.width, r.height, 0, 45);
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}
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g.setColor(Color.yellow);
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if (filled) {
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g.fillArc(0, 0, r.width, r.height, 0, 45);
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} else {
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g.drawArc(0, 0, r.width, r.height, 0, 45);
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}
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g.setColor(Color.green);
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if (filled)
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{
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g.fillArc(0, 0, r.width, r.height, 90, -45);
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}
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else
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{
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g.drawArc(0, 0, r.width, r.height, 90, -45);
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}
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g.setColor(Color.green);
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if (filled) {
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g.fillArc(0, 0, r.width, r.height, 90, -45);
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} else {
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g.drawArc(0, 0, r.width, r.height, 90, -45);
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}
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g.setColor(Color.orange);
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if (filled)
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{
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g.fillArc(0, 0, r.width, r.height, 135, -45);
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}
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else
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{
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g.drawArc(0, 0, r.width, r.height, 135, -45);
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}
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g.setColor(Color.orange);
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if (filled) {
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g.fillArc(0, 0, r.width, r.height, 135, -45);
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} else {
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g.drawArc(0, 0, r.width, r.height, 135, -45);
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}
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g.setColor(Color.magenta);
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g.setColor(Color.magenta);
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if (filled)
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{
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g.fillArc(0, 0, r.width, r.height, -225, 45);
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}
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else
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{
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g.drawArc(0, 0, r.width, r.height, -225, 45);
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}
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if (filled) {
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g.fillArc(0, 0, r.width, r.height, -225, 45);
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} else {
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g.drawArc(0, 0, r.width, r.height, -225, 45);
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}
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g.setColor(Color.yellow);
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if (filled)
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{
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g.fillArc(0, 0, r.width, r.height, 225, -45);
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}
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else
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{
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g.drawArc(0, 0, r.width, r.height, 225, -45);
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}
|
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g.setColor(Color.yellow);
|
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if (filled) {
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g.fillArc(0, 0, r.width, r.height, 225, -45);
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} else {
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g.drawArc(0, 0, r.width, r.height, 225, -45);
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}
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g.setColor(Color.green);
|
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if (filled)
|
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{
|
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g.fillArc(0, 0, r.width, r.height, -135, 45);
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}
|
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else
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{
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g.drawArc(0, 0, r.width, r.height, -135, 45);
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}
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g.setColor(Color.green);
|
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if (filled) {
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g.fillArc(0, 0, r.width, r.height, -135, 45);
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} else {
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g.drawArc(0, 0, r.width, r.height, -135, 45);
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}
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g.setColor(Color.orange);
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if (filled)
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{
|
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g.fillArc(0, 0, r.width, r.height, -45, -45);
|
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}
|
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else
|
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{
|
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g.drawArc(0, 0, r.width, r.height, -45, -45);
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}
|
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g.setColor(Color.orange);
|
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if (filled) {
|
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g.fillArc(0, 0, r.width, r.height, -45, -45);
|
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} else {
|
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g.drawArc(0, 0, r.width, r.height, -45, -45);
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}
|
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|
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g.setColor(Color.magenta);
|
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if (filled)
|
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{
|
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g.fillArc(0, 0, r.width, r.height, 315, 45);
|
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}
|
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else
|
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{
|
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g.drawArc(0, 0, r.width, r.height, 315, 45);
|
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}
|
||||
|
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} // end paint()
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g.setColor(Color.magenta);
|
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if (filled) {
|
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g.fillArc(0, 0, r.width, r.height, 315, 45);
|
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} else {
|
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g.drawArc(0, 0, r.width, r.height, 315, 45);
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}
|
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} // end paint()
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} // end class ArcPanel
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abstract class Shape
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||||
{
|
||||
abstract void draw(Graphics g, int x, int y, int w, int h);
|
||||
abstract void fill(Graphics g, int x, int y, int w, int h);
|
||||
abstract class Shape {
|
||||
|
||||
abstract void draw(Graphics g, int x, int y, int w, int h);
|
||||
|
||||
abstract void fill(Graphics g, int x, int y, int w, int h);
|
||||
}
|
||||
|
||||
|
||||
class RectShape extends Shape
|
||||
{
|
||||
void draw(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
g.drawRect(x, y, w, h);
|
||||
}
|
||||
class RectShape extends Shape {
|
||||
|
||||
void fill(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
g.fillRect(x, y, w, h);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
class OvalShape extends Shape
|
||||
{
|
||||
void draw(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
g.drawOval(x, y, w, h);
|
||||
}
|
||||
|
||||
void fill(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
g.fillOval(x, y, w, h);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
class RoundRectShape extends Shape
|
||||
{
|
||||
void draw(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
g.drawRoundRect(x, y, w, h, 10, 10);
|
||||
}
|
||||
|
||||
void fill(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
g.fillRoundRect(x, y, w, h, 10, 10);
|
||||
}
|
||||
}
|
||||
|
||||
class PolygonShape extends Shape
|
||||
{
|
||||
// class variables
|
||||
Polygon p;
|
||||
Polygon pBase;
|
||||
|
||||
public PolygonShape()
|
||||
{
|
||||
pBase = new Polygon();
|
||||
pBase.addPoint(0, 0);
|
||||
pBase.addPoint(10, 0);
|
||||
pBase.addPoint(5, 15);
|
||||
pBase.addPoint(10, 20);
|
||||
pBase.addPoint(5, 20);
|
||||
pBase.addPoint(0, 10);
|
||||
pBase.addPoint(0, 0);
|
||||
}
|
||||
|
||||
void scalePolygon(float w, float h)
|
||||
{
|
||||
p = new Polygon();
|
||||
for (int i = 0; i < pBase.npoints; ++i)
|
||||
{
|
||||
p.addPoint( (int) (pBase.xpoints[i] * w),
|
||||
(int) (pBase.ypoints[i] * h) );
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void draw(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
Graphics ng = g.create();
|
||||
try {
|
||||
ng.translate(x, y);
|
||||
scalePolygon( (float) ( (float) w / (float) 10 ),
|
||||
(float) ( (float) h / (float) 20 ) );
|
||||
ng.drawPolygon(p);
|
||||
} finally {
|
||||
ng.dispose();
|
||||
@Override
|
||||
void draw(Graphics g, int x, int y, int w, int h) {
|
||||
g.drawRect(x, y, w, h);
|
||||
}
|
||||
}
|
||||
|
||||
void fill(Graphics g, int x, int y, int w, int h)
|
||||
{
|
||||
Graphics ng = g.create();
|
||||
try {
|
||||
ng.translate(x, y);
|
||||
scalePolygon( (float) ( (float) w / (float) 10 ),
|
||||
(float) ( (float) h / (float) 20 ) );
|
||||
ng.fillPolygon(p);
|
||||
} finally {
|
||||
ng.dispose();
|
||||
@Override
|
||||
void fill(Graphics g, int x, int y, int w, int h) {
|
||||
g.fillRect(x, y, w, h);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
class ShapeTest extends Panel
|
||||
{
|
||||
Shape shape;
|
||||
int step;
|
||||
class OvalShape extends Shape {
|
||||
|
||||
public ShapeTest(Shape shape, int step)
|
||||
{
|
||||
this.shape = shape;
|
||||
this.step = step;
|
||||
}
|
||||
@Override
|
||||
void draw(Graphics g, int x, int y, int w, int h) {
|
||||
g.drawOval(x, y, w, h);
|
||||
}
|
||||
|
||||
public ShapeTest(Shape shape)
|
||||
{
|
||||
this(shape, 10);
|
||||
}
|
||||
@Override
|
||||
void fill(Graphics g, int x, int y, int w, int h) {
|
||||
g.fillOval(x, y, w, h);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
class RoundRectShape extends Shape {
|
||||
|
||||
@Override
|
||||
void draw(Graphics g, int x, int y, int w, int h) {
|
||||
g.drawRoundRect(x, y, w, h, 10, 10);
|
||||
}
|
||||
|
||||
@Override
|
||||
void fill(Graphics g, int x, int y, int w, int h) {
|
||||
g.fillRoundRect(x, y, w, h, 10, 10);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
class PolygonShape extends Shape {
|
||||
// class variables
|
||||
|
||||
Polygon p;
|
||||
Polygon pBase;
|
||||
|
||||
public PolygonShape() {
|
||||
pBase = new Polygon();
|
||||
pBase.addPoint(0, 0);
|
||||
pBase.addPoint(10, 0);
|
||||
pBase.addPoint(5, 15);
|
||||
pBase.addPoint(10, 20);
|
||||
pBase.addPoint(5, 20);
|
||||
pBase.addPoint(0, 10);
|
||||
pBase.addPoint(0, 0);
|
||||
}
|
||||
|
||||
void scalePolygon(float w, float h) {
|
||||
p = new Polygon();
|
||||
for (int i = 0; i < pBase.npoints; ++i) {
|
||||
p.addPoint((int) (pBase.xpoints[i] * w),
|
||||
(int) (pBase.ypoints[i] * h));
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
void draw(Graphics g, int x, int y, int w, int h) {
|
||||
Graphics ng = g.create();
|
||||
try {
|
||||
ng.translate(x, y);
|
||||
scalePolygon(((float) w / 10f), ((float) h / 20f));
|
||||
ng.drawPolygon(p);
|
||||
} finally {
|
||||
ng.dispose();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
void fill(Graphics g, int x, int y, int w, int h) {
|
||||
Graphics ng = g.create();
|
||||
try {
|
||||
ng.translate(x, y);
|
||||
scalePolygon(((float) w / 10f), ((float) h / 20f));
|
||||
ng.fillPolygon(p);
|
||||
} finally {
|
||||
ng.dispose();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@SuppressWarnings("serial")
|
||||
class ShapeTest extends Panel {
|
||||
|
||||
Shape shape;
|
||||
int step;
|
||||
|
||||
public ShapeTest(Shape shape, int step) {
|
||||
this.shape = shape;
|
||||
this.step = step;
|
||||
}
|
||||
|
||||
public ShapeTest(Shape shape) {
|
||||
this(shape, 10);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void paint(Graphics g) {
|
||||
Rectangle bounds = getBounds();
|
||||
|
||||
@ -443,35 +431,22 @@ class ShapeTest extends Panel
|
||||
|
||||
Color color;
|
||||
|
||||
for (color=Color.red,
|
||||
cx=bounds.x,
|
||||
cy=bounds.y,
|
||||
cw=bounds.width / 2,
|
||||
ch=bounds.height;
|
||||
cw > 0 && ch > 0;
|
||||
|
||||
cx+=step,
|
||||
cy += step,
|
||||
cw -= (step * 2),
|
||||
ch -= (step * 2),
|
||||
color=ColorUtils.darker(color, 0.9) ) {
|
||||
for (color = Color.red, cx = bounds.x, cy = bounds.y,
|
||||
cw = bounds.width / 2, ch = bounds.height;
|
||||
cw > 0 && ch > 0;
|
||||
cx += step, cy += step, cw -= (step * 2), ch -= (step * 2),
|
||||
color = ColorUtils.darker(color, 0.9)) {
|
||||
g.setColor(color);
|
||||
shape.draw(g, cx, cy, cw, ch);
|
||||
}
|
||||
|
||||
for (cx=bounds.x + bounds.width / 2,
|
||||
cy=bounds.y,
|
||||
cw=bounds.width / 2, ch=bounds.height;
|
||||
cw > 0 && ch > 0;
|
||||
|
||||
cx+=step,
|
||||
cy += step,
|
||||
cw -= (step * 2),
|
||||
ch -= (step * 2) ) {
|
||||
for (cx = bounds.x + bounds.width / 2, cy = bounds.y,
|
||||
cw = bounds.width / 2, ch = bounds.height;
|
||||
cw > 0 && ch > 0;
|
||||
cx += step, cy += step, cw -= (step * 2), ch -= (step * 2)) {
|
||||
if (g.getColor() == Color.red) {
|
||||
g.setColor(Color.blue);
|
||||
}
|
||||
else {
|
||||
} else {
|
||||
g.setColor(Color.red);
|
||||
}
|
||||
|
||||
@ -480,16 +455,18 @@ class ShapeTest extends Panel
|
||||
} // end paint()
|
||||
} // end class ShapeTest
|
||||
|
||||
|
||||
class ColorUtils {
|
||||
|
||||
static Color brighter(Color c, double factor) {
|
||||
return new Color( Math.min((int)(c.getRed() *(1/factor)), 255),
|
||||
Math.min((int)(c.getGreen()*(1/factor)), 255),
|
||||
Math.min((int)(c.getBlue() *(1/factor)), 255) );
|
||||
return new Color(Math.min((int) (c.getRed() * (1 / factor)), 255),
|
||||
Math.min((int) (c.getGreen() * (1 / factor)), 255),
|
||||
Math.min((int) (c.getBlue() * (1 / factor)), 255));
|
||||
}
|
||||
|
||||
static Color darker(Color c, double factor) {
|
||||
return new Color( Math.max((int)(c.getRed() *factor), 0),
|
||||
Math.max((int)(c.getGreen()*factor), 0),
|
||||
Math.max((int)(c.getBlue() *factor), 0) );
|
||||
return new Color(Math.max((int) (c.getRed() * factor), 0),
|
||||
Math.max((int) (c.getGreen() * factor), 0),
|
||||
Math.max((int) (c.getBlue() * factor), 0));
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user