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/*******************************************************************************
* Copyright (c) 2008, 2011 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.internal.debug.ui.preferences;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
/**
* An integer field editor with an enablement check box.
*/
public class IntegerWithBooleanFieldEditor extends DecoratingIntegerFieldEditor {
private final String fEnableKey;
private Button fCheckbox;
private boolean fWasSelected;
public IntegerWithBooleanFieldEditor(String enableKey, String nameKey,
String labelText, Composite parent) {
super(nameKey, labelText, parent);
fEnableKey = enableKey;
}
public IntegerWithBooleanFieldEditor(String enableKey, String nameKey,
String labelText, Composite parent, int textLimit) {
super(nameKey, labelText, parent, textLimit);
fEnableKey = enableKey;
}
@Override
protected void doFillIntoGrid(Composite parent, int numColumns) {
getCheckboxControl(parent);
super.doFillIntoGrid(parent, numColumns);
}
private Button getCheckboxControl(Composite parent) {
if (fCheckbox == null) {
Composite inner = new Composite(parent, SWT.NULL);
final GridLayout layout = new GridLayout(2, false);
layout.marginWidth = 0;
inner.setLayout(layout);
fCheckbox = new Button(inner, SWT.CHECK);
fCheckbox.setFont(parent.getFont());
fCheckbox.setText(getLabelText());
// create and hide label from base class
Label label = getLabelControl(inner);
label.setText(""); //$NON-NLS-1$
label.setVisible(false);
fCheckbox.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
boolean isSelected = fCheckbox.getSelection();
valueChanged(fWasSelected, isSelected);
fWasSelected = isSelected;
}
});
}
else {
checkParent(fCheckbox.getParent(), parent);
}
return fCheckbox;
}
@Override
public Label getLabelControl(Composite parent) {
final Label label = getLabelControl();
if (label == null) {
return super.getLabelControl(parent);
}
else {
checkParent(label.getParent(), parent);
}
return label;
}
protected void valueChanged(boolean oldValue, boolean newValue) {
if (oldValue != newValue) {
valueChanged();
fireStateChanged(VALUE, oldValue, newValue);
getTextControl().setEnabled(newValue);
getLabelControl().setEnabled(newValue);
}
}
@Override
protected boolean checkState() {
if (fCheckbox != null && !fCheckbox.getSelection()) {
clearErrorMessage();
return true;
}
return super.checkState();
}
@Override
protected void doLoad() {
super.doLoad();
if (fCheckbox != null) {
boolean value = getPreferenceStore().getBoolean(fEnableKey);
fCheckbox.setSelection(value);
fWasSelected = value;
getTextControl().setEnabled(value);
getLabelControl().setEnabled(value);
}
}
@Override
protected void doLoadDefault() {
super.doLoadDefault();
if (fCheckbox != null) {
boolean value = getPreferenceStore().getDefaultBoolean(fEnableKey);
fCheckbox.setSelection(value);
fWasSelected = value;
getTextControl().setEnabled(value);
getLabelControl().setEnabled(value);
}
}
@Override
protected void doStore() {
super.doStore();
getPreferenceStore().setValue(fEnableKey, fCheckbox.getSelection());
}
/**
* Returns this field editor's current boolean value.
*
* @return the value
*/
public boolean getBooleanValue() {
return fCheckbox.getSelection();
}
}
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