/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.tools.visualvm.modules.appui.about;
import com.sun.tools.visualvm.uisupport.HTMLTextArea;
import com.sun.tools.visualvm.uisupport.SeparatorLine;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.HierarchyEvent;
import java.awt.event.HierarchyListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.AbstractAction;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.KeyStroke;
import javax.swing.SwingUtilities;
import org.openide.awt.Mnemonics;
import org.openide.util.NbBundle;
/**
*
* @author Jiri Sedlacek
*/
public class TextBrowser {
private boolean copyingAllHtmlToClipboard = false;
// --- Internal API --------------------------------------------------------
synchronized static TextBrowser getInstance() {
if (instance == null) {
instance = new TextBrowser();
instance.initComponents();
}
return instance;
}
void setCaption(String caption) {
dialog.setTitle(caption);
}
void setPreferredBrowserSize(Dimension preferredSize) {
this.preferredSize = preferredSize;
}
void showCodeText(String text) {
textDisplayer.setText(text);
displayerScrollPane.setViewportView(textDisplayer);
try { textDisplayer.setCaretPosition(0); } catch (Exception e) {}
displayerScrollPane.setPreferredSize(preferredSize);
dialog.pack();
closeButton.requestFocusInWindow();
dialog.setLocationRelativeTo(null);
dialog.setResizable(true);
dialog.setVisible(true);
}
void showHTMLText(String text) {
htmlTextDisplayer.setText(text);
displayerScrollPane.setViewportView(htmlTextDisplayer);
try { htmlTextDisplayer.setCaretPosition(0); } catch (Exception e) {}
Dimension htmlSize = htmlTextDisplayer.getPreferredSize();
htmlSize.width = Math.min(htmlSize.width, 700);
htmlSize.height = Math.min(htmlSize.height, 500);
displayerScrollPane.setPreferredSize(htmlSize);
dialog.pack();
closeButton.requestFocusInWindow();
dialog.setLocationRelativeTo(null);
dialog.setResizable(false);
dialog.setVisible(true);
}
void setHelperButton(JButton helperButton) {
if (this.helperButton != null && helperButton == null)
buttonsContainer.remove(this.helperButton);
else if (this.helperButton == null && helperButton != null)
buttonsContainer.add(helperButton, BorderLayout.WEST);
this.helperButton = helperButton;
}
void close() {
dialog.setVisible(false);
dialog.dispose();
}
void copyAllHtmlToClipboard() {
if (!htmlTextDisplayer.getText().isEmpty()) {
copyingAllHtmlToClipboard = true;
try { htmlTextDisplayer.copy(); }
finally { copyingAllHtmlToClipboard = false; }
}
}
// --- Private implementation ----------------------------------------------
private TextBrowser() {}
private void initComponents() {
dialog = new JDialog(AboutDialog.getInstance().getDialog(), "", true); // NOI18N
dialog.addWindowListener(new WindowAdapter() {
public void windowClosed(WindowEvent e) { cleanup(); }
});
contentPane = (JComponent)dialog.getContentPane();
contentPane.setLayout(new BorderLayout());
contentPane.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
.put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "CLOSE_ACTION"); // NOI18N
contentPane.getActionMap().put("CLOSE_ACTION", new AbstractAction() { // NOI18N
public void actionPerformed(ActionEvent e) { close(); }});
textDisplayer = new TextViewerComponent();
htmlTextDisplayer = new HTMLTextArea() {
public int getSelectionStart() {
if (copyingAllHtmlToClipboard) return 0;
else return super.getSelectionStart();
}
public int getSelectionEnd() {
if (copyingAllHtmlToClipboard) return getText().length();
else return super.getSelectionEnd();
}
};
displayerScrollPane = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
displayerScrollPane.setBorder(BorderFactory.createEmptyBorder());
displayerScrollPane.setViewportBorder(BorderFactory.createEmptyBorder());
textDisplayer.setForeground(htmlTextDisplayer.getForeground());
textDisplayer.setBackground(htmlTextDisplayer.getBackground());
textDisplayer.setSelectionColor(htmlTextDisplayer.getSelectionColor());
textDisplayer.setSelectedTextColor(htmlTextDisplayer.getSelectedTextColor());
closeButton = new JButton(); // NOI18N
Mnemonics.setLocalizedText(closeButton, NbBundle.getMessage(AboutDialogControls.class, "LBL_Close")); // NOI18N
closeButton.setDefaultCapable(true);
closeButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
SwingUtilities.invokeLater(new Runnable() {
public void run() { close(); }
});
}
});
buttonsContainer = new JPanel(new BorderLayout());
buttonsContainer.setBorder(BorderFactory.createEmptyBorder(10, 10, 6, 10));
buttonsContainer.add(closeButton, BorderLayout.EAST);
JPanel bottomPanel = new JPanel(new BorderLayout());
final SeparatorLine separator = new SeparatorLine();
bottomPanel.add(separator, BorderLayout.NORTH);
bottomPanel.add(buttonsContainer, BorderLayout.CENTER);
final JScrollBar horizontalScroll = displayerScrollPane.getHorizontalScrollBar();
if (horizontalScroll != null) horizontalScroll.addHierarchyListener(new HierarchyListener() {
public void hierarchyChanged(HierarchyEvent e) {
if ((e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED) != 0) {
separator.setVisible(!horizontalScroll.isShowing());
}
}
});
contentPane.add(displayerScrollPane, BorderLayout.CENTER);
contentPane.add(bottomPanel, BorderLayout.SOUTH);
dialog.getRootPane().setDefaultButton(closeButton);
dialog.setResizable(true);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
}
private void cleanup() {
setHelperButton(null);
displayerScrollPane.getViewport().removeAll();
textDisplayer.setText(""); // NOI18N
htmlTextDisplayer.setText(""); // NOI18N
}
private static TextBrowser instance;
private JDialog dialog;
private JComponent contentPane;
private JPanel buttonsContainer;
private JButton closeButton;
private JButton helperButton;
private TextViewerComponent textDisplayer;
private HTMLTextArea htmlTextDisplayer;
private JScrollPane displayerScrollPane;
private Dimension preferredSize = new Dimension(400, 300);
}