Java tutorial
/* * Software Name : ATK * * Copyright (C) 2007 - 2012 France Tlcom * * 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. * * ------------------------------------------------------------------ * File Name : ErrorFrame.java * * Created : 15/03/2010 * Author(s) : HENAFF Mari-Mai */ package com.orange.atk.error; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; import java.util.StringTokenizer; import javax.swing.BoxLayout; import javax.swing.Icon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.UIManager; import com.lowagie.text.Font; import com.orange.atk.internationalization.ResourceManager; @SuppressWarnings("serial") class ErrorFrame extends JFrame { MultiLineLabel errorLabel; JButton detailButton; JButton okButton; JTextArea detailArea; JScrollPane detailScrollPane; private final String detailArrowsRight = ResourceManager.getInstance().getString("DETAIL_BUTTON_TITLE") + " >>"; private final String detailArrowsLeft = "<< " + ResourceManager.getInstance().getString("DETAIL_BUTTON_TITLE"); private final String defaultTitle = ResourceManager.getInstance().getString("ERROR_FRAME_DEFAULT_TITLE"); public ErrorFrame() { super(); setTitle(defaultTitle); JPanel panel = new JPanel(); panel.setLayout(new GridBagLayout()); addWindowListener(new WindowListener() { public void windowActivated(WindowEvent arg0) { } public void windowClosed(WindowEvent arg0) { } public void windowClosing(WindowEvent arg0) { close(); } public void windowDeactivated(WindowEvent arg0) { } public void windowDeiconified(WindowEvent arg0) { } public void windowIconified(WindowEvent arg0) { } public void windowOpened(WindowEvent arg0) { } }); //default constraints //top left with no insets or a 0.1 weight (few move on resizing GridBagConstraints gbc = new GridBagConstraints(0, 0, //gridx, gridy 2, 1, //gridwidth, gridheight 0, 0, //weightx, weighty GridBagConstraints.CENTER, // anchor GridBagConstraints.NONE, // FILL new Insets(10, 10, 5, 10), // padding top, left, bottom, right 0, 0); //ipadx, ipady // Error message errorLabel = new MultiLineLabel(UIManager.getIcon("OptionPane.errorIcon")); panel.add(errorLabel, gbc); // ok Button gbc.gridx = 0; gbc.gridy = 1; gbc.gridwidth = 1; gbc.weightx = 0.5; gbc.anchor = GridBagConstraints.EAST; gbc.fill = GridBagConstraints.NONE; gbc.insets = new Insets(5, 10, 10, 5); okButton = new JButton(ResourceManager.getInstance().getString("OK_BUTTON_TITLE")); okButton.setFont(okButton.getFont().deriveFont(Font.BOLD, 11)); okButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { close(); } }); panel.add(okButton, gbc); // Detail Button gbc.gridx = 1; gbc.gridy = 1; gbc.gridwidth = 1; gbc.weightx = 0.5; gbc.anchor = GridBagConstraints.WEST; gbc.fill = GridBagConstraints.NONE; gbc.insets = new Insets(5, 5, 10, 10); detailButton = new JButton(detailArrowsRight); detailButton.setFont(okButton.getFont().deriveFont(Font.BOLD, 11)); detailButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { detailPerformed(); } }); panel.add(detailButton, gbc); // Detail Area gbc.gridx = 0; gbc.gridy = 2; gbc.gridwidth = 2; gbc.weightx = 1; gbc.anchor = GridBagConstraints.CENTER; gbc.fill = GridBagConstraints.BOTH; gbc.insets = new Insets(0, 10, 10, 10); detailArea = new JTextArea(8, 40); detailScrollPane = new JScrollPane(detailArea, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); detailArea.setEditable(false); detailScrollPane.setVisible(false); panel.add(detailScrollPane, gbc); this.setContentPane(panel); this.setMaximumSize(new Dimension(500, 500)); setOnMiddleOfTheScreen(); this.setAlwaysOnTop(true); setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); } private void setOnMiddleOfTheScreen() { // Get the size of the screen Dimension dim = Toolkit.getDefaultToolkit().getScreenSize(); // Determine the new location of the window int w = getSize().width; int h = getSize().height; int x = (dim.width - w) / 2; int y = (dim.height - h) / 2; // Move the window setLocation(x, y); } public void display() { display(defaultTitle); } public void display(String title) { // update ErrorFrame according to ErrorManager contents ErrorManager errorManager = ErrorManager.getInstance(); int errorNb = errorManager.getErrorsNumber(); if (errorNb != 0) { errorLabel.setText(errorManager.getLastError().toString()); detailArea.setText(errorManager.getAllErrors().toString()); if (errorNb > 1) detailButton.setEnabled(true); else detailButton.setEnabled(false); // by default, the detail scroll pane is always hidden if (detailScrollPane.isVisible()) { detailScrollPane.setVisible(false); detailButton.setText(detailArrowsRight); } pack(); setVisible(true); } } private void close() { setVisible(false); dispose(); } private void detailPerformed() { if (detailScrollPane.isVisible()) { detailScrollPane.setVisible(false); detailButton.setText(detailArrowsRight); pack(); } else { detailScrollPane.setVisible(true); detailButton.setText(this.detailArrowsLeft); pack(); } } class MultiLineLabel extends JPanel { JPanel labelsPane; JLabel iconLabel; public MultiLineLabel(Icon icon) { super(); this.setLayout(new BoxLayout(this, BoxLayout.X_AXIS)); iconLabel = new JLabel(); iconLabel.setIcon(icon); this.add(iconLabel); labelsPane = new JPanel(); labelsPane.setLayout(new BoxLayout(labelsPane, BoxLayout.Y_AXIS)); this.add(labelsPane); } public void setText(String text) { labelsPane.removeAll(); StringTokenizer st = new StringTokenizer(text, "\n"); while (st.hasMoreTokens()) { labelsPane.add(new JLabel(st.nextToken())); } } } }