Java tutorial
/* * CMISBox - Synchronize and share your files with your CMIS Repository * * Copyright (C) 2011 - Andrea Agili * * CMISBox is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * CMISBox is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with CMISBox. If not, see <http://www.gnu.org/licenses/>. * */ package com.github.cmisbox.ui; import java.awt.BorderLayout; import java.awt.Color; import java.awt.GradientPaint; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GraphicsConfiguration; import java.awt.GraphicsEnvironment; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Image; import java.awt.Paint; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.image.BufferedImage; import java.io.IOException; import java.util.concurrent.Semaphore; import javax.imageio.ImageIO; import javax.swing.BorderFactory; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.SwingConstants; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public abstract class BaseFrame extends javax.swing.JFrame implements javax.swing.RootPaneContainer { static final class CloseAdapter extends MouseAdapter { private BaseFrame f; public CloseAdapter(BaseFrame baseFrame) { this.f = baseFrame; } @Override public void mouseClicked(MouseEvent e) { this.f.setVisible(false); this.f.dispose(); this.f.semaphore.release(); } } private static final long serialVersionUID = 4679039774438171041L; private final boolean gradient; protected JPanel mainPanel; protected Semaphore semaphore = new Semaphore(0); protected Log log; protected CloseAdapter closeAdapter = new CloseAdapter(this); private static final GraphicsConfiguration gc = GraphicsEnvironment.getLocalGraphicsEnvironment() .getDefaultScreenDevice().getDefaultConfiguration(); public BaseFrame() { super(AWTUtilitiesWrapper.isTranslucencyCapable(BaseFrame.gc) ? BaseFrame.gc : null); this.log = LogFactory.getLog(this.getClass()); this.gradient = false; this.setUndecorated(true); this.mainPanel = new JPanel(new GridBagLayout()) { private static final long serialVersionUID = 1035974033526970010L; protected void paintComponent(Graphics g) { if ((g instanceof Graphics2D) && BaseFrame.this.gradient) { final int R = 0; final int G = 0; final int B = 0; Paint p = new GradientPaint(0.0f, 0.0f, new Color(R, G, B, 192), this.getWidth(), this.getHeight(), new Color(R, G, B, 255), true); Graphics2D g2d = (Graphics2D) g; g2d.setPaint(p); g2d.fillRect(0, 0, this.getWidth(), this.getHeight()); } else { super.paintComponent(g); } } }; this.setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE); GridBagConstraints gbc = new GridBagConstraints(); this.mainPanel.setDoubleBuffered(false); this.mainPanel.setOpaque(false); this.mainPanel.setBorder(BorderFactory.createLineBorder(Color.white)); JLabel title = new JLabel(this.getWindowTitle(), SwingConstants.CENTER); title.setForeground(Color.white); gbc.fill = GridBagConstraints.HORIZONTAL; gbc.gridx = 1; gbc.gridy = 0; gbc.weightx = 100; this.mainPanel.add(title, gbc); Image closeImg = this.getImage("images/application-exit.png", 32, 32); JLabel close = new JLabel(new ImageIcon(closeImg), SwingConstants.RIGHT); gbc.fill = GridBagConstraints.NONE; gbc.gridx = 2; gbc.weightx = 0; this.mainPanel.add(close, gbc); close.addMouseListener(this.closeAdapter); this.getContentPane().add(this.mainPanel, BorderLayout.CENTER); this.initComponents(); this.pack(); this.mainPanel.setOpaque(!this.gradient); if (!this.gradient) { this.mainPanel.setBackground(new Color(0, 0, 0, 208)); } this.setLocationRelativeTo(null); AWTUtilitiesWrapper.setWindowOpaque(this, false); this.setVisible(true); this.setAlwaysOnTop(true); } public Image getImage(String resource, Integer height, Integer width) { try { BufferedImage image = ImageIO.read(this.getClass().getResource(resource)); if ((height != null) && (width != null) && ((image.getHeight() != height) || (image.getWidth() != width))) { return image.getScaledInstance(width, height, Image.SCALE_SMOOTH); } return image; } catch (IOException e1) { this.log.error(e1); } return null; } protected abstract String getWindowTitle(); protected abstract void initComponents(); public void waitFor() { try { this.semaphore.acquire(); } catch (InterruptedException e) { this.log.error(e); } } }