java2demo.java

一个小公司要求给写的很简单的任务管理系统。

    public void itemStateChanged(ItemEvent e) {
        if (e.getSource().equals(controlsCB)) {
            boolean newVisibility = !controls.isVisible();
            controls.setVisible(newVisibility);
            for (Component cmp : controls.texturechooser.getComponents()) {
                cmp.setVisible(newVisibility);
            }
        } else if (e.getSource().equals(memoryCB)) {
            if (memorymonitor.isVisible()) {
                memorymonitor.setVisible(false);
                memorymonitor.surf.setVisible(false);
                memorymonitor.surf.stop();
            } else {
                memorymonitor.setVisible(true);
                memorymonitor.surf.setVisible(true);
                memorymonitor.surf.start();
            }
        } else if (e.getSource().equals(perfCB)) {
            if (performancemonitor.isVisible()) {
                performancemonitor.setVisible(false);
                performancemonitor.surf.setVisible(false);
                performancemonitor.surf.stop();
            } else {
                performancemonitor.setVisible(true);
                performancemonitor.surf.setVisible(true);
                performancemonitor.surf.start();
            }
        } else if (e.getSource().equals(ccthreadCB)) {
            CustomControlsContext.State state =
                ccthreadCB.isSelected() ? START : STOP;
            if (tabbedPane.getSelectedIndex() != 0) {
                JPanel p = group[tabbedPane.getSelectedIndex()-1].getPanel();
                for (int i = 0; i < p.getComponentCount(); i++) {
                    DemoPanel dp = (DemoPanel) p.getComponent(i);
                    if (dp.ccc != null) {
                        dp.ccc.handleThread(state);
                    }
                } 
            }
        }
        revalidate();
    }


    public void start() {
        if (tabbedPane.getSelectedIndex() == 0) {
            intro.start();
        } else {
            group[tabbedPane.getSelectedIndex()-1].setup(false);
            if (memorymonitor.surf.thread == null && memoryCB.getState()) {
                memorymonitor.surf.start();
            }
            if (performancemonitor.surf.thread == null && perfCB.getState()) {
                performancemonitor.surf.start();
            }
        }
    }


    public void stop() {
        if (tabbedPane.getSelectedIndex() == 0) {
            intro.stop();
        } else {
            memorymonitor.surf.stop();
            performancemonitor.surf.stop();
            int i = tabbedPane.getSelectedIndex()-1;
            group[i].shutDown(group[i].getPanel());
        }
    }


    static void addToGridBag(JPanel panel, Component comp,
            int x, int y, int w, int h, double weightx, double weighty) {

        GridBagLayout gbl = (GridBagLayout) panel.getLayout();
        GridBagConstraints c = new GridBagConstraints();
        c.fill = GridBagConstraints.BOTH;
        c.gridx = x;
        c.gridy = y;
        c.gridwidth = w;
        c.gridheight = h;
        c.weightx = weightx;
        c.weighty = weighty;
        panel.add(comp);
        gbl.setConstraints(comp, c);
    }


    /**
     * The Icon for the Intro tab.
     */
    static class J2DIcon implements Icon {

        private static Color myBlue  = new Color(94, 105, 176); 
        private static Color myBlack = new Color(20,  20,  20); 
        private static Font font = new Font("serif", Font.BOLD, 12);
        private FontRenderContext frc = new FontRenderContext(null,true,true);
        private TextLayout tl = new TextLayout("Java2D", font, frc);

        public void paintIcon(Component c, Graphics g, int x, int y ) {
            Graphics2D g2 = (Graphics2D) g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, 
                                RenderingHints.VALUE_ANTIALIAS_ON);
            g2.setFont(font);
            if (tabbedPane.getSelectedIndex() == 0) {
                g2.setColor(myBlue);
            } else {
                g2.setColor(myBlack);
            }
            tl.draw(g2, x, y + 15);
        }

        public int getIconWidth() {
            return 40;
        }

        public int getIconHeight() {
            return 22;
        }
    }



    public static void main(String args[]) {
        for (int i = 0; i < args.length; i++) {
            if (args[i].startsWith("-h") || args[i].startsWith("-help")) {
                String s = "\njava -jar Java2Demo.jar -runs=5 -delay=5 -screen=5 " +
                           "-antialias=true -rendering=true -texture=true " +
                           "-composite=true -verbose -print -columns=3 " +
                           "-buffers=5,10 -ccthread -zoom -maxscreen \n";
                System.out.println(s);
                s = "    -runs=5       Number of runs to execute\n" +
                    "    -delay=5      Sleep amount between tabs\n" +
                    "    -antialias=   true or false for antialiasing\n" +
                    "    -rendering=   true or false for quality or speed\n" + 
                    "    -texture=     true or false for texturing\n" +
                    "    -composite=   true or false for compositing\n" +
                    "    -verbose      output Surface graphic states \n" +
                    "    -print        during run print the Surface, " +
                    "use the Default Printer\n" +
                    "    -columns=3    # of columns to use in clone layout \n" +
                    "    -screen=3     demos all use this screen type \n" +
                    "    -buffers=5,10 during run - clone to see screens " +
                    "five through ten\n" +
                    "    -ccthread     Invoke the Custom Controls Thread \n" +
                    "    -zoom         mouseClick on surface for zoom in  \n" +
                    "    -maxscreen    take up the entire monitor screen \n";
                System.out.println(s);
                s = "Examples : \n" +
                    "    Print all of the demos : \n" +
                    "        java -jar Java2Demo.jar -runs=1 -delay=60 -print \n" +
                    "    Run zoomed in with custom control thread \n" +
                    "        java -jar Java2Demo.jar -runs=10 -zoom -ccthread\n"; 
                System.out.println(s);
                System.exit(0);
            } else if (args[i].startsWith("-delay=")) {
                String s = args[i].substring(args[i].indexOf('=')+1);
                RunWindow.delay = Integer.parseInt(s);
            }
        }

        JFrame frame = new JFrame("Java 2D(TM) Demo");
        frame.getAccessibleContext().setAccessibleDescription("A sample application to demonstrate Java2D features");
        int WIDTH = 400, HEIGHT = 200;
        frame.setSize(WIDTH, HEIGHT);
        Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
        frame.setLocation(d.width/2 - WIDTH/2, d.height/2 - HEIGHT/2);
        frame.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {System.exit(0);}
            public void windowDeiconified(WindowEvent e) { 
                if (demo != null) { demo.start(); }
            }
            public void windowIconified(WindowEvent e) { 
                if (demo != null) { demo.stop(); }
            }
        });
        JOptionPane.setRootFrame(frame);

        JPanel progressPanel = new JPanel() {
            public Insets getInsets() {
                return new Insets(40,30,20,30);
            }
        };
        progressPanel.setLayout(new BoxLayout(progressPanel, BoxLayout.Y_AXIS));
        frame.getContentPane().add(progressPanel, BorderLayout.CENTER);

        Dimension labelSize = new Dimension(400, 20);
        progressLabel = new JLabel("Loading, please wait...");
        progressLabel.setAlignmentX(CENTER_ALIGNMENT);
        progressLabel.setMaximumSize(labelSize);
        progressLabel.setPreferredSize(labelSize);
        progressPanel.add(progressLabel);
        progressPanel.add(Box.createRigidArea(new Dimension(1,20)));

        progressBar = new JProgressBar();
        progressBar.setStringPainted(true);
        progressLabel.setLabelFor(progressBar);
        progressBar.setAlignmentX(CENTER_ALIGNMENT);
        progressBar.setMinimum(0);
        progressBar.setValue(0);
        progressBar.getAccessibleContext().setAccessibleName("Java2D loading progress");
        progressPanel.add(progressBar);

        frame.setVisible(true);

        demo = new Java2Demo();

        frame.getContentPane().removeAll();
        frame.getContentPane().setLayout(new BorderLayout());
        frame.getContentPane().add(demo, BorderLayout.CENTER);
        WIDTH = 730; HEIGHT = 570;
        frame.setLocation(d.width/2 - WIDTH/2, d.height/2 - HEIGHT/2);
        frame.setSize(WIDTH, HEIGHT);
        frame.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));

        for (int i = 0; i < args.length; i++) {
            String arg = args[i];
            String s = arg.substring(arg.indexOf('=')+1);
            if (arg.startsWith("-runs=")) {
                RunWindow.numRuns = Integer.parseInt(s);
                RunWindow.exit = true;
                demo.createRunWindow();
            } else if (arg.startsWith("-screen=")) {
                demo.controls.screenCombo.setSelectedIndex(Integer.parseInt(s));
            } else if (arg.startsWith("-antialias=")) {
                demo.controls.aliasCB.setSelected(s.endsWith("true"));
            } else if (arg.startsWith("-rendering=")) {
                demo.controls.renderCB.setSelected(s.endsWith("true"));
            } else if (arg.startsWith("-texture=")) {
                demo.controls.textureCB.setSelected(s.endsWith("true"));
            } else if (arg.startsWith("-composite=")) {
                demo.controls.compositeCB.setSelected(s.endsWith("true"));
            } else if (arg.startsWith("-verbose")) {
                demo.verboseCB.setSelected(true);
            } else if (arg.startsWith("-print")) {
                demo.printCB.setSelected(true);
                RunWindow.printCB.setSelected(true);
            } else if (arg.startsWith("-columns=")) {
                DemoGroup.columns = Integer.parseInt(s);
            } else if (arg.startsWith("-buffers=")) {
                // usage -buffers=3,10
                RunWindow.buffersFlag = true;
                int i1 = arg.indexOf('=')+1;
                int i2 = arg.indexOf(',');
                String s1 = arg.substring(i1, i2);
                RunWindow.bufBeg = Integer.parseInt(s1);
                s1 = arg.substring(i2+1, arg.length());
                RunWindow.bufEnd = Integer.parseInt(s1);
            } else if (arg.startsWith("-ccthread")) {
                demo.ccthreadCB.setSelected(true);
            } else if (arg.startsWith("-zoom")) {
                RunWindow.zoomCB.setSelected(true);
            } else if (arg.startsWith("-maxscreen")) {
                frame.setLocation(0, 0);
                frame.setSize(d.width, d.height);
            }
        }

        frame.validate();
        frame.repaint();
        frame.getFocusTraversalPolicy()
             .getDefaultComponent(frame)
             .requestFocus();
        demo.start();

        if (RunWindow.exit) {
            demo.startRunWindow();
        }
    }
}