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/**
* Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.util.ui.widgets;
import org.eclipse.net4j.util.io.IOUtil;
import org.eclipse.net4j.util.ui.UIUtil;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.TextStyle;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import java.util.ArrayList;
import java.util.List;
/**
* @author Eike Stepper
*/
public class LogDialog extends BaseDialog<Viewer>
{
private StringBuilder log = new StringBuilder();
private StyledText text;
private TextStyle textStyle;
private List<StyleRange> styleRanges = new ArrayList<StyleRange>();
private StyleRange currentStyleRange = new StyleRange();
private StyleRange lastStyleRange;
private Font font;
public LogDialog(Shell parentShell, int shellStyle, String title, String message, IDialogSettings settings)
{
super(parentShell, shellStyle, title, message, settings);
}
public LogDialog(Shell parentShell, String title, String message, IDialogSettings settings)
{
this(parentShell, DEFAULT_SHELL_STYLE, title, message, settings);
}
public TextStyle getTextStyle()
{
return textStyle;
}
public void setTextStyle(TextStyle textStyle)
{
if (textStyle == null)
{
throw new IllegalArgumentException("textStyle == null"); //$NON-NLS-1$
}
if (textStyle.equals(this.textStyle))
{
return;
}
lastStyleRange = currentStyleRange;
this.textStyle = textStyle;
currentStyleRange = new StyleRange();
currentStyleRange.start = log.length();
currentStyleRange.rise = textStyle.rise;
currentStyleRange.background = textStyle.background;
currentStyleRange.font = textStyle.font;
currentStyleRange.foreground = textStyle.foreground;
currentStyleRange.metrics = textStyle.metrics;
currentStyleRange.strikeout = textStyle.strikeout;
currentStyleRange.underline = textStyle.underline;
}
public void append(String text)
{
checkStyleRange();
log.append(text);
currentStyleRange.length += text.length();
}
public void append(Throwable t)
{
checkStyleRange();
String text = IOUtil.toString(t);
log.append(text);
currentStyleRange.length += text.length();
}
@Override
public boolean close()
{
font.dispose();
return super.close();
}
@Override
protected void createUI(Composite parent)
{
GridLayout grid = new GridLayout();
grid.marginTop = 6;
grid.marginLeft = 6;
grid.marginRight = 6;
grid.marginBottom = 6;
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(grid);
composite.setLayoutData(UIUtil.createGridData());
font = new Font(getShell().getDisplay(), "Courier New", 9, SWT.NORMAL); //$NON-NLS-1$
checkStyleRange();
lastStyleRange = currentStyleRange;
checkStyleRange();
text = new StyledText(composite, SWT.MULTI | SWT.READ_ONLY | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
text.setLayoutData(UIUtil.createGridData());
text.setText(log.toString());
text.setStyleRanges(styleRanges.toArray(new StyleRange[styleRanges.size()]));
text.setBackground(getShell().getDisplay().getSystemColor(SWT.COLOR_WHITE));
text.setFont(font);
}
@Override
protected void createButtonsForButtonBar(Composite parent)
{
createButton(parent, IDialogConstants.OK_ID, IDialogConstants.CLOSE_LABEL, true);
}
private void checkStyleRange()
{
if (lastStyleRange != null)
{
styleRanges.add(lastStyleRange);
lastStyleRange = null;
}
}
}
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