Java Code Examples for javax.swing.JFrame#getWidth()

/**
   * 屏幕居中方法
   */
  public static void setCenter(JFrame jframe) {
      Toolkit kit = Toolkit.getDefaultToolkit();
      Dimension screenSize = kit.getScreenSize();
      int screenHeight = screenSize.height;
      int screenWidth = screenSize.width;
      jframe.setSize(screenWidth*2/3, screenHeight*2/3);
      int frameH = jframe.getHeight();
      int frameW = jframe.getWidth();
      jframe.setLocation((screenWidth - frameW) / 2, (screenHeight - frameH) / 2);
try {
	String src = "images/logo.gif";
	File f = new File(src);
	Image image = ImageIO.read(f);
	jframe.setIconImage(image);
} catch (IOException e) {
	e.printStackTrace();
}
  }
 

/**
 * 设置窗体居中
 * @param jf 
 */
public static void setFrameCenter(JFrame jf){
    /*
    思路：
        获取屏幕的宽和高
        获取窗体的宽和高
    */
    //获取工具类
    Toolkit took = Toolkit.getDefaultToolkit();
    
    //获取屏幕的宽和高
    Dimension screen = took.getScreenSize();
    
   double screenWidth =  screen.getWidth();
   double screenHeight = screen.getHeight();
   
   //获取窗体的宽和高
   int jfWidth = jf.getWidth();
   int jfHeight = jf.getHeight();
   
   //设置坐标
   int width = (int)(screenWidth-jfWidth)/2;
   int height = (int)(screenHeight-jfHeight)/2;
   
  jf.setLocation(width,height);
}
 

/**
 * 设置窗体居中
 * @param jf 
 */
public static void setFrameCenter(JFrame jf){
    /*
    思路：
        获取屏幕的宽和高
        获取窗体的宽和高
    */
    //获取工具类
    Toolkit took = Toolkit.getDefaultToolkit();
    
    //获取屏幕的宽和高
    Dimension screen = took.getScreenSize();
    
   double screenWidth =  screen.getWidth();
   double screenHeight = screen.getHeight();
   
   //获取窗体的宽和高
   int jfWidth = jf.getWidth();
   int jfHeight = jf.getHeight();
   
   //设置坐标
   int width = (int)(screenWidth-jfWidth)/2;
   int height = (int)(screenHeight-jfHeight)/2;
   
  jf.setLocation(width,height);
}
 

/**
 * 设置窗体居中
 * @param jf 
 */
public static void setFrameCenter(JFrame jf){
    /*
    思路：
        获取屏幕的宽和高
        获取窗体的宽和高
    */
    //获取工具类
    Toolkit took = Toolkit.getDefaultToolkit();
    
    //获取屏幕的宽和高
    Dimension screen = took.getScreenSize();
    
   double screenWidth =  screen.getWidth();
   double screenHeight = screen.getHeight();
   
   //获取窗体的宽和高
   int jfWidth = jf.getWidth();
   int jfHeight = jf.getHeight();
   
   //设置坐标
   int width = (int)(screenWidth-jfWidth)/2;
   int height = (int)(screenHeight-jfHeight)/2;
   
  jf.setLocation(width,height);
}
 

private static void showUI() {
    frame = new JFrame();
    frame.setSize(new Dimension(400, 400));
    frame.setLocationRelativeTo(null);

    final Container content = frame.getContentPane();
    content.setLayout(new BorderLayout(0, 0));
    Container lastPanel = content;
    for (int i = 0; i < 500; i++) {
        final JPanel p = new JPanel();
        p.setLayout(new BorderLayout(0, 0));
        lastPanel.add(p);
        lastPanel.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("click");
                go.countDown();
            }
        });
        lastPanel = p;
    }

    lastPanel.setBackground(Color.GREEN);
    frame.setVisible(true);

    Point loc = frame.getLocationOnScreen();
    center.x = loc.x + frame.getWidth() / 2;
    center.y = loc.y + frame.getHeight() / 2;
}
 

private static void showUI() {
    frame = new JFrame();
    frame.setSize(new Dimension(400, 400));
    frame.setLocationRelativeTo(null);

    final Container content = frame.getContentPane();
    content.setLayout(new BorderLayout(0, 0));
    Container lastPanel = content;
    for (int i = 0; i < 500; i++) {
        final JPanel p = new JPanel();
        p.setLayout(new BorderLayout(0, 0));
        lastPanel.add(p);
        lastPanel.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("click");
                go.countDown();
            }
        });
        lastPanel = p;
    }

    lastPanel.setBackground(Color.GREEN);
    frame.setVisible(true);

    Point loc = frame.getLocationOnScreen();
    center.x = loc.x + frame.getWidth() / 2;
    center.y = loc.y + frame.getHeight() / 2;
}
 

private static void showUI() {
    frame = new JFrame();
    frame.setSize(new Dimension(400, 400));
    frame.setLocationRelativeTo(null);

    final Container content = frame.getContentPane();
    content.setLayout(new BorderLayout(0, 0));
    Container lastPanel = content;
    for (int i = 0; i < 500; i++) {
        final JPanel p = new JPanel();
        p.setLayout(new BorderLayout(0, 0));
        lastPanel.add(p);
        lastPanel.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("click");
                go.countDown();
            }
        });
        lastPanel = p;
    }

    lastPanel.setBackground(Color.GREEN);
    frame.setVisible(true);

    Point loc = frame.getLocationOnScreen();
    center.x = loc.x + frame.getWidth() / 2;
    center.y = loc.y + frame.getHeight() / 2;
}
 

public void set(JFrame window) {
    if (window != null) {
        // Save one window's settings
        String name = window.getClass().getSimpleName();
        Rectangle r = rectangle (name);
        r.x = window.getX();
        r.y = window.getY();
        r.width = window.getWidth();
        r.height = window.getHeight();
    }
}
 

private static void showUI() {
    frame = new JFrame();
    frame.setSize(new Dimension(400, 400));
    frame.setLocationRelativeTo(null);

    final Container content = frame.getContentPane();
    content.setLayout(new BorderLayout(0, 0));
    Container lastPanel = content;
    for (int i = 0; i < 500; i++) {
        final JPanel p = new JPanel();
        p.setLayout(new BorderLayout(0, 0));
        lastPanel.add(p);
        lastPanel.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("click");
                go.countDown();
            }
        });
        lastPanel = p;
    }

    lastPanel.setBackground(Color.GREEN);
    frame.setVisible(true);

    Point loc = frame.getLocationOnScreen();
    center.x = loc.x + frame.getWidth() / 2;
    center.y = loc.y + frame.getHeight() / 2;
}
 

/**
 * 
 * frame������
 * 
 * @param jf
 */
public static void setFrameCenter (JFrame jf) {
	Toolkit toolkit = Toolkit.getDefaultToolkit();
	Dimension screen = toolkit.getScreenSize();// �����ݶ���
	int x = (screen.width - jf.getWidth()) / 2;
	int y = (screen.height - jf.getHeight()) / 2 - 32;
	jf.setLocation(x, y);
}
 

private static void openMainWindow(final MainPanel cp) throws IOException {
    JFrame frame = new JFrame(Configuration.INSTANCE.getAppName());
    
    Dimension screenSize =  java.awt.Toolkit.getDefaultToolkit().getScreenSize() ;
    
    float ratio = (float) 0.8 ;
    Dimension windowSize = new Dimension ((int)(screenSize.getWidth() * ratio), (int)(screenSize.getHeight() * ratio)) ;

    frame.setSize(windowSize.getSize());
    frame.setLocationByPlatform(true);
    frame.setIconImage(ImageIO.read(SwiftExplorer.class.getResource("/icons/logo.png")));
    frame.getContentPane().add(cp);
    frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
    frame.addWindowListener(new WindowAdapter() {
        @Override
        public void windowClosing(WindowEvent e) {
            if (cp.onClose()) {
                System.exit(0);
            }
        }
    });
    cp.setOwner(frame);
    frame.setJMenuBar(cp.createMenuBar());
    
    // center the frame
    int x = (int) ((screenSize.getWidth() - frame.getWidth()) / 2);
    int y = (int) ((screenSize.getHeight() - frame.getHeight()) / 2);
    frame.setLocation(x, y);
    
    frame.setVisible(true);
}
 

/**
 * Center a frame on the main display
 *
 * @param frame
 *            The frame to center
 */
public static void centerFrameOnMainDisplay(final JFrame frame) {
	final GraphicsEnvironment ge = GraphicsEnvironment
			.getLocalGraphicsEnvironment();
	final GraphicsDevice[] screens = ge.getScreenDevices();
	if (screens.length < 1) {
		return; // Silently fail.
	}
	final Rectangle screenBounds = screens[0].getDefaultConfiguration()
			.getBounds();
	final int x = (int) ((screenBounds.getWidth() - frame.getWidth()) / 2);
	final int y = (int) ((screenBounds.getHeight() - frame.getHeight()) / 2);
	frame.setLocation(x, y);
}
 

/**
 * Center a frame on the main display
 *
 * @param frame
 *            The frame to center
 */
public void centerFrameOnMainDisplay(final JFrame frame) {
	final GraphicsEnvironment ge = GraphicsEnvironment
			.getLocalGraphicsEnvironment();
	final GraphicsDevice[] screens = ge.getScreenDevices();
	if (screens.length < 1) {
		return; // Silently fail.
	}
	final Rectangle screenBounds = screens[0].getDefaultConfiguration()
			.getBounds();
	final int x = (int) ((screenBounds.getWidth() - frame.getWidth()) / 2);
	final int y = (int) ((screenBounds.getHeight() - frame.getHeight()) / 2);
	frame.setLocation(x, y);
}
 

/**
 * Center a frame on the main display
 *
 * @param frame
 *            The frame to center
 */
public static void centerFrameOnMainDisplay(final JFrame frame) {
	final GraphicsEnvironment ge = GraphicsEnvironment
			.getLocalGraphicsEnvironment();
	final GraphicsDevice[] screens = ge.getScreenDevices();
	if (screens.length < 1) {
		return; // Silently fail.
	}
	final Rectangle screenBounds = screens[0].getDefaultConfiguration()
			.getBounds();
	final int x = (int) ((screenBounds.getWidth() - frame.getWidth()) / 2);
	final int y = (int) ((screenBounds.getHeight() - frame.getHeight()) / 2);
	frame.setLocation(x, y);
}
 

public static void savePrefs(JFrame frame, ColourChooser chooser, LayerManager layers)
{
	Preferences prefs = Preferences.userNodeForPackage(UserPreferences.class);
	
	if((frame.getExtendedState() & Frame.MAXIMIZED_BOTH) == Frame.MAXIMIZED_BOTH)
	{
		prefs.putBoolean(WINDOW_MAXIMIZED, true);
	}
	else
	{
		windowWidth = frame.getWidth();
		windowHeight = frame.getHeight();
		prefs.putInt(WINDOW_WIDTH, windowWidth);
		prefs.putInt(WINDOW_HEIGHT, windowHeight);
		prefs.putBoolean(WINDOW_MAXIMIZED, false);
	}
	colourPickerX = chooser.getX();
	colourPickerY = chooser.getY();
	colourPickerMode = chooser.getMode();
	prefs.putInt(COLOUR_PICKER_X, colourPickerX);
	prefs.putInt(COLOUR_PICKER_Y, colourPickerY);
	prefs.putInt(COLOUR_PICKER_MODE, colourPickerMode);
	prefs.putBoolean(COLOUR_PICKER_VISIBLE, chooser.isVisible());
	
	layersX = layers.dialog.getX();
	layersY = layers.dialog.getY();
	layersWidth = layers.dialog.getWidth();
	layersHeight = layers.dialog.getHeight();
	prefs.putInt(LAYERS_X, layersX);
	prefs.putInt(LAYERS_Y, layersY);
	prefs.putInt(LAYERS_WIDTH, layersWidth);
	prefs.putInt(LAYERS_HEIGHT, layersHeight);
	prefs.putBoolean(LAYERS_VISIBLE, layers.isVisible());
	
	prefs.putBoolean(COLOUR_PICKER_VISIBLE, chooser.isVisible());
	
	prefs.putBoolean(BACKGROUND_DARK, Menu.DARK_BACKGROUND);
}
 

public static void main(String[] args) throws IOException {
	TreeJPanel tjp = new TreeJPanel();
	String ptbTreeString = "(NP-2 (NP-1 (QP-1 (CD-1 One) (JJR-1 more)) (NN-2 try)) (PP-0 (IN-1 with) (NP-2 (NP-1 (NN-1 something)) (ADVP-0 (RB-1 longer)))))";// "(ROOT (S (NP (DT This)) (VP (VBZ is) (NP (DT a) (NN test))) (. .)))";
	if (args.length > 0) {
		ptbTreeString = args[0];
	}
	Tree<String> tree = (new Trees.PennTreeReader(new StringReader(
			ptbTreeString))).next();// new StringReader(ptbTreeString), new
									// LabeledScoredTreeFactory(new
									// StringLabelFactory()))).readTree();
	tjp.setTree(tree);
	JFrame frame = new JFrame();
	frame.getContentPane().add(tjp, BorderLayout.CENTER);
	frame.addWindowListener(new WindowAdapter() {
		@Override
		public void windowClosing(WindowEvent e) {
			System.exit(0);
		}
	});
	frame.pack();
	// Image img = frame.createImage(frame.getWidth(),frame.getHeight());
	frame.setVisible(true);
	frame.setVisible(true);
	frame.setSize(tjp.preferredX, tjp.preferredY);

	int t = 1;
	t++;

	BufferedImage bi = new BufferedImage(tjp.width(), tjp.height(),
			BufferedImage.TYPE_INT_ARGB);
	Graphics2D g2 = bi.createGraphics();
	// int rule = AlphaComposite.SRC_OVER;
	// AlphaComposite ac = AlphaComposite.getInstance(rule, 0f);
	// g2.setComposite(ac);

	g2.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR, 1.0f));
	Rectangle2D.Double rect = new Rectangle2D.Double(0, 0,
			frame.getWidth(), frame.getHeight());
	g2.fill(rect);

	g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
			1.0f));

	tjp.paintComponent(g2); // paint the graphic to the offscreen image
	// g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
	// 1.0f));
	// g2.drawImage(src, null, 0, 0);
	// g2.dispose();

	ImageIO.write(bi, "png", new File("example.png")); // save as png format
														// DONE!

	// System.exit(1);

}