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/*
* Copyright (c) 2004 - 2012 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.emf.cdo.ui.widgets;
import org.eclipse.emf.cdo.common.branch.CDOBranch;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.util.CDOCommonUtil;
import org.eclipse.emf.cdo.internal.ui.dialogs.OpenAuditDialog;
import org.eclipse.emf.cdo.internal.ui.messages.Messages;
import org.eclipse.emf.cdo.ui.shared.SharedIcons;
import org.eclipse.net4j.util.ui.UIUtil;
import org.eclipse.net4j.util.ui.ValidationContext;
import org.eclipse.net4j.util.ui.ValidationParticipant;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusAdapter;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import java.text.ParseException;
/**
* UI widget allowing users to indicate {@link org.eclipse.emf.cdo.common.branch.CDOBranchPoint timestamp} of a
* particular historical state of a {@link org.eclipse.emf.cdo.common.branch.CDOBranch branch}
*
* @author Eike Stepper
* @since 4.0
*/
public class SelectTimeStampComposite extends Composite implements ValidationParticipant
{
private ValidationContext validationContext;
private CDOBranch branch;
private long timeStamp = CDOBranchPoint.INVALID_DATE;
private Composite pointGroup;
private Button headRadio;
private Button baseRadio;
private Text baseText;
private Button timeRadio;
private Text timeText;
private Button timeBrowseButton;
public SelectTimeStampComposite(Composite parent, int style, CDOBranch branch, long timeStamp)
{
super(parent, style);
setLayout(new FillLayout());
pointGroup = new Composite(this, SWT.NONE);
pointGroup.setLayout(new GridLayout(3, false));
headRadio = new Button(pointGroup, SWT.RADIO);
headRadio.setText(Messages.getString("BranchSelectionDialog.1")); //$NON-NLS-1$
headRadio.addSelectionListener(new SelectionAdapter()
{
@Override
public void widgetSelected(SelectionEvent e)
{
if (headRadio.getSelection())
{
setTimeStamp(CDOBranchPoint.UNSPECIFIED_DATE);
}
}
});
new Label(pointGroup, SWT.NONE);
new Label(pointGroup, SWT.NONE);
baseRadio = new Button(pointGroup, SWT.RADIO);
baseRadio.setText(Messages.getString("BranchSelectionDialog.2")); //$NON-NLS-1$
baseRadio.addSelectionListener(new SelectionAdapter()
{
@Override
public void widgetSelected(SelectionEvent e)
{
if (baseRadio.getSelection())
{
setTimeStamp(SelectTimeStampComposite.this.branch.getBase().getTimeStamp());
}
}
});
baseText = new Text(pointGroup, SWT.BORDER);
baseText.setLayoutData(createTimeGridData());
baseText.setEnabled(false);
new Label(pointGroup, SWT.NONE);
timeRadio = new Button(pointGroup, SWT.RADIO);
timeRadio.setText(Messages.getString("BranchSelectionDialog.3")); //$NON-NLS-1$
timeRadio.addSelectionListener(new SelectionAdapter()
{
@Override
public void widgetSelected(SelectionEvent e)
{
if (timeRadio.getSelection())
{
parseTime();
}
}
});
timeText = new Text(pointGroup, SWT.BORDER);
timeText.setLayoutData(createTimeGridData());
timeText.setText(CDOCommonUtil.formatTimeStamp());
timeText.addModifyListener(new ModifyListener()
{
public void modifyText(ModifyEvent e)
{
parseTime();
}
});
timeText.addFocusListener(new FocusAdapter()
{
@Override
public void focusGained(FocusEvent e)
{
selectRadio(timeRadio);
}
});
timeBrowseButton = new Button(pointGroup, SWT.NONE);
timeBrowseButton.setImage(SharedIcons.getImage(SharedIcons.ETOOL_TIME_PICK_BUTTON_ICON));
timeBrowseButton.addSelectionListener(new SelectionAdapter()
{
@Override
public void widgetSelected(SelectionEvent e)
{
selectRadio(timeRadio);
OpenAuditDialog dialog = new OpenAuditDialog(UIUtil.getActiveWorkbenchPage());
if (dialog.open() == IDialogConstants.OK_ID)
{
setTimeStamp(dialog.getTimeStamp());
}
}
});
setBranch(branch);
setTimeStamp(timeStamp);
}
public ValidationContext getValidationContext()
{
return validationContext;
}
public void setValidationContext(ValidationContext validationContext)
{
this.validationContext = validationContext;
}
public CDOBranch getBranch()
{
return branch;
}
public void setBranch(CDOBranch branch)
{
this.branch = branch;
headRadio.setEnabled(branch != null);
baseRadio.setEnabled(branch != null);
baseText.setText(branch != null ? CDOCommonUtil.formatTimeStamp(branch.getBase().getTimeStamp()) : "");
setTimeStamp(timeStamp);
}
public long getTimeStamp()
{
return timeStamp;
}
public void setTimeStamp(long timeStamp)
{
long oldTimeStamp = this.timeStamp;
this.timeStamp = timeStamp;
if (headRadio.isEnabled()
&& (timeStamp == CDOBranchPoint.INVALID_DATE || timeStamp == CDOBranchPoint.UNSPECIFIED_DATE))
{
selectRadio(headRadio);
}
else if (baseRadio.isEnabled() && timeStamp == branch.getBase().getTimeStamp())
{
selectRadio(baseRadio);
}
else
{
selectRadio(timeRadio);
String text = timeStamp == CDOBranchPoint.INVALID_DATE ? "" : CDOCommonUtil.formatTimeStamp(timeStamp);
if (!timeText.getText().equals(text))
{
timeText.setText(text);
}
}
if (oldTimeStamp != timeStamp)
{
timeStampChanged(timeStamp);
}
}
protected void timeStampChanged(long timeStamp)
{
}
public Button getHeadRadio()
{
return headRadio;
}
public Button getBaseRadio()
{
return baseRadio;
}
public Text getBaseText()
{
return baseText;
}
public Button getTimeRadio()
{
return timeRadio;
}
public Text getTimeText()
{
return timeText;
}
public Button getTimeBrowseButton()
{
return timeBrowseButton;
}
private GridData createTimeGridData()
{
GridData gd2 = UIUtil.createGridData(false, false);
gd2.widthHint = 160;
return gd2;
}
private void parseTime()
{
try
{
setTimeStamp(CDOCommonUtil.parseTimeStamp(timeText.getText()));
if (validationContext != null)
{
validationContext.setValidationError(timeText, null);
}
}
catch (ParseException ex)
{
if (validationContext != null)
{
validationContext.setValidationError(timeText, "Invalid time stamp.");
}
}
}
private void selectRadio(Button button)
{
headRadio.setSelection(button == headRadio);
baseRadio.setSelection(button == baseRadio);
timeRadio.setSelection(button == timeRadio);
}
}
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