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/*******************************************************************************
* Copyright (c) 2000, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ui.dialogs;
import org.eclipse.core.resources.mapping.ResourceMapping;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
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.Table;
import org.eclipse.team.internal.ui.TeamUIMessages;
import org.eclipse.team.internal.ui.mapping.ResourceMappingLabelProvider;
import org.eclipse.ui.model.AdaptableList;
import org.eclipse.ui.model.BaseWorkbenchContentProvider;
/**
* Dialog area that displays a checkbox list of mappings.
*/
public class ResourceMappingSelectionArea extends DialogArea {
/**
* Property constant used to indicate that the selected mapping has changed.
* The object associated with the property is a <code>ResourceMapping</code>.
*/
public static final String SELECTED_MAPPING = "SelectedMapping"; //$NON-NLS-1$
/**
* Property constant used to indicate that the checked mappings have changed.
* The object associated with the property is a <code>ResourceMapping[]</code>
* (i.e. an array of mappings).
*/
public static final String CHECKED_MAPPINGS = "CheckedMappings"; //$NON-NLS-1$
private ResourceMapping[] mappings;
private TableViewer viewer;
private ResourceMapping[] checkedMappings;
private ResourceMapping selectedMapping;
private String description;
private boolean supportsChecking;
private boolean supportsSelection;
public ResourceMappingSelectionArea(ResourceMapping[] mappings, boolean supportSelection, boolean supportChecking) {
this.mappings = mappings;
this.supportsChecking = supportChecking;
this.supportsSelection = supportSelection;
}
@Override
public void createArea(Composite parent) {
Composite composite = createComposite(parent, 1, true);
GridLayout layout = new GridLayout(1, false);
layout.marginHeight = 0;
layout.marginWidth = 0;
layout.verticalSpacing = 0;
layout.horizontalSpacing = 0;
composite.setLayout(layout);
if (description != null)
createWrappingLabel(composite, description, 1);
createViewer(composite);
GridData data = new GridData(GridData.FILL_BOTH);
data.heightHint = 100;
data.widthHint = 300;
viewer.getControl().setLayoutData(data);
viewer.setContentProvider(new BaseWorkbenchContentProvider());
viewer.setLabelProvider(new ResourceMappingLabelProvider());
viewer.setInput(new AdaptableList(mappings));
if (isSupportsSelection()) {
viewer.addSelectionChangedListener(event -> {
ResourceMapping oldSelection = selectedMapping;
selectedMapping = internalGetSelectedMapping();
if (oldSelection != selectedMapping)
firePropertyChangeChange(SELECTED_MAPPING, oldSelection, selectedMapping);
});
}
if (isSupportsChecking())
initializeCheckboxViewer(composite);
}
private void initializeCheckboxViewer(Composite composite) {
final CheckboxTableViewer checkboxViewer = getCheckboxTableViewer();
checkboxViewer.addCheckStateListener(event -> {
ResourceMapping[] oldMappings = checkedMappings;
checkedMappings = internalGetCheckedMappings();
if (oldMappings != checkedMappings)
firePropertyChangeChange(CHECKED_MAPPINGS, oldMappings, checkedMappings);
});
checkboxViewer.setCheckedElements(mappings);
checkedMappings = mappings;
Composite buttons = createEmbeddedButtonComposite(composite);
Button selectAll = new Button(buttons, SWT.PUSH);
selectAll.setText(TeamUIMessages.ResourceMappingSelectionArea_0);
selectAll.setLayoutData(new GridData(GridData.FILL_BOTH));
selectAll.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
checkboxViewer.setAllChecked(true);
}
});
Button deselectAll = new Button(buttons, SWT.PUSH);
deselectAll.setText(TeamUIMessages.ResourceMappingSelectionArea_1);
deselectAll.setLayoutData(new GridData(GridData.FILL_BOTH));
deselectAll.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
checkboxViewer.setAllChecked(false);
}
});
}
private void createViewer(Composite composite) {
if (isSupportsChecking())
viewer = CheckboxTableViewer.newCheckList(composite, getViewerStyle());
else
viewer = new TableViewer(new Table(composite, getViewerStyle()));
}
private int getViewerStyle() {
int style = SWT.BORDER;
if (isSupportsSelection())
style |= SWT.SINGLE;
return style;
}
/* private */ ResourceMapping[] internalGetCheckedMappings() {
Object[] checked = getCheckboxTableViewer().getCheckedElements();
ResourceMapping[] mappings = new ResourceMapping[checked.length];
for (int i = 0; i < checked.length; i++) {
Object object = checked[i];
mappings[i] = (ResourceMapping)object;
}
return mappings;
}
private Composite createEmbeddedButtonComposite(Composite composite) {
GridData data;
Composite buttons = new Composite(composite, SWT.NONE);
GridLayout layout = new GridLayout();
layout.numColumns = 2; // this is incremented by createButton
layout.makeColumnsEqualWidth = true;
layout.marginWidth = 0;
buttons.setLayout(layout);
data = new GridData(GridData.HORIZONTAL_ALIGN_END
| GridData.VERTICAL_ALIGN_CENTER);
buttons.setLayoutData(data);
return buttons;
}
/* private */ ResourceMapping internalGetSelectedMapping() {
ISelection selection = viewer.getSelection();
if (selection instanceof IStructuredSelection) {
IStructuredSelection ss = (IStructuredSelection) selection;
Object firstElement = ss.getFirstElement();
if (firstElement instanceof ResourceMapping)
return (ResourceMapping)firstElement;
}
return null;
}
public void setDescription(String description) {
this.description = description;
}
public ResourceMapping[] getCheckedMappings() {
return checkedMappings;
}
public ResourceMapping getSelectedMapping() {
return selectedMapping;
}
private CheckboxTableViewer getCheckboxTableViewer() {
return (CheckboxTableViewer)viewer;
}
public boolean isSupportsChecking() {
return supportsChecking;
}
public boolean isSupportsSelection() {
return supportsSelection;
}
}
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