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/*******************************************************************************
* Copyright (c) 2005, 2007 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.dialogfields;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Table;
/**
* A list with checkboxes and a button bar. Typical buttons are 'Check All' and 'Uncheck All'.
* List model is independend of widget creation.
* DialogFields controls are: Label, List and Composite containing buttons.
*/
public class CheckedListDialogField extends ListDialogField {
private int fCheckAllButtonIndex;
private int fUncheckAllButtonIndex;
private List fCheckElements;
public CheckedListDialogField(IListAdapter adapter, String[] customButtonLabels, ILabelProvider lprovider) {
super(adapter, customButtonLabels, lprovider);
fCheckElements= new ArrayList();
fCheckAllButtonIndex= -1;
fUncheckAllButtonIndex= -1;
}
/**
* Sets the index of the 'check' button in the button label array passed in the constructor.
* The behaviour of the button marked as the check button will then be handled internally.
* (enable state, button invocation behaviour)
*/
public void setCheckAllButtonIndex(int checkButtonIndex) {
Assert.isTrue(checkButtonIndex < fButtonLabels.length);
fCheckAllButtonIndex= checkButtonIndex;
}
/**
* Sets the index of the 'uncheck' button in the button label array passed in the constructor.
* The behaviour of the button marked as the uncheck button will then be handled internally.
* (enable state, button invocation behaviour)
*/
public void setUncheckAllButtonIndex(int uncheckButtonIndex) {
Assert.isTrue(uncheckButtonIndex < fButtonLabels.length);
fUncheckAllButtonIndex= uncheckButtonIndex;
}
/*
* @see ListDialogField#createTableViewer
*/
protected TableViewer createTableViewer(Composite parent) {
Table table= new Table(parent, SWT.CHECK + getListStyle());
CheckboxTableViewer tableViewer= new CheckboxTableViewer(table);
tableViewer.addCheckStateListener(new ICheckStateListener() {
public void checkStateChanged(CheckStateChangedEvent e) {
doCheckStateChanged(e);
}
});
return tableViewer;
}
/*
* @see ListDialogField#getListControl
*/
public Control getListControl(Composite parent) {
Control control= super.getListControl(parent);
if (parent != null) {
((CheckboxTableViewer)fTable).setCheckedElements(fCheckElements.toArray());
}
return control;
}
/*
* @see DialogField#dialogFieldChanged
* Hooks in to get element changes to update check model.
*/
public void dialogFieldChanged() {
for (int i= fCheckElements.size() -1; i >= 0; i--) {
if (!fElements.contains(fCheckElements.get(i))) {
fCheckElements.remove(i);
}
}
super.dialogFieldChanged();
}
private void checkStateChanged() {
//call super and do not update check model
super.dialogFieldChanged();
}
/**
* Gets the checked elements.
*/
public List getCheckedElements() {
return new ArrayList(fCheckElements);
}
/**
* Returns true if the element is checked.
*/
public boolean isChecked(Object obj) {
return fCheckElements.contains(obj);
}
/**
* Sets the checked elements.
*/
public void setCheckedElements(List list) {
fCheckElements= new ArrayList(list);
if (fTable != null) {
((CheckboxTableViewer)fTable).setCheckedElements(list.toArray());
}
checkStateChanged();
}
/**
* Sets the checked state of an element.
*/
public void setChecked(Object object, boolean state) {
setCheckedWithoutUpdate(object, state);
checkStateChanged();
}
/**
* Sets the checked state of an element. no dialog changed listener informed
*/
public void setCheckedWithoutUpdate(Object object, boolean state) {
if (state) {
if (!fCheckElements.contains(object)) {
fCheckElements.add(object);
}
}
else {
if (fCheckElements.contains(object)) {
fCheckElements.remove(object);
}
}
if (fTable != null) {
((CheckboxTableViewer)fTable).setChecked(object, state);
}
}
/**
* Sets the check state of all elements
*/
public void checkAll(boolean state) {
if (state) {
fCheckElements= getElements();
} else {
fCheckElements.clear();
}
if (fTable != null) {
((CheckboxTableViewer)fTable).setAllChecked(state);
}
checkStateChanged();
}
protected void doCheckStateChanged(CheckStateChangedEvent e) {
if (e.getChecked()) {
fCheckElements.add(e.getElement());
} else {
fCheckElements.remove(e.getElement());
}
checkStateChanged();
}
// ------ enable / disable management
/*
* @see ListDialogField#getManagedButtonState
*/
protected boolean getManagedButtonState(ISelection sel, int index) {
if (index == fCheckAllButtonIndex) {
return !fElements.isEmpty();
} else if (index == fUncheckAllButtonIndex) {
return !fElements.isEmpty();
}
return super.getManagedButtonState(sel, index);
}
/*
* @see ListDialogField#extraButtonPressed
*/
protected boolean managedButtonPressed(int index) {
if (index == fCheckAllButtonIndex) {
checkAll(true);
} else if (index == fUncheckAllButtonIndex) {
checkAll(false);
} else {
return super.managedButtonPressed(index);
}
return true;
}
}
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