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/*******************************************************************************
* Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
* This file is part of Gluster Management Console.
*
* Gluster Management Console is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Gluster Management Console is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
* for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*******************************************************************************/
package com.gluster.storage.management.console.views.pages;
import java.util.List;
import org.eclipse.jface.layout.TableColumnLayout;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.IBaseLabelProvider;
import org.eclipse.jface.viewers.IContentProvider;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
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.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchSite;
import org.eclipse.ui.forms.events.HyperlinkAdapter;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.Hyperlink;
import com.gluster.storage.management.console.GlusterDataModelManager;
import com.gluster.storage.management.console.utils.GUIHelper;
import com.gluster.storage.management.console.utils.TableViewerComparator;
import com.gluster.storage.management.core.model.ClusterListener;
public abstract class AbstractTableViewerPage<T> extends Composite implements ISelectionListener {
private boolean useCheckboxes;
private boolean multiSelection;
protected final FormToolkit toolkit = new FormToolkit(Display.getCurrent());
protected TableViewer tableViewer;
protected GUIHelper guiHelper = GUIHelper.getInstance();
protected Composite parent;
protected IWorkbenchSite site;
private Hyperlink linkAll, linkNone;
private ClusterListener clusterListener;
public AbstractTableViewerPage(IWorkbenchSite site, final Composite parent, int style, boolean useChechboxes, boolean multiSelection, Object model) {
super(parent, style);
this.parent = parent;
this.site = site;
this.useCheckboxes = useChechboxes;
this.multiSelection = multiSelection;
toolkit.adapt(this);
toolkit.paintBordersFor(this);
setupPageLayout();
createCheckboxSelectionLinks();
Text filterText = guiHelper.createFilterText(toolkit, this);
setupTableViewer(site, filterText);
tableViewer.setInput(model);
// register as selection provider so that other views can listen to any selection events on the tree
site.setSelectionProvider(tableViewer);
site.getPage().addSelectionListener(this);
parent.layout(); // Important - this actually paints the table
createListeners(parent);
}
public void createCheckboxSelectionLinks() {
if (useCheckboxes) {
// create the "select all/none" links
toolkit.createLabel(this, "Select");
linkAll = toolkit.createHyperlink(this, "all", SWT.NONE);
linkAll.addHyperlinkListener(new HyperlinkAdapter() {
@Override
public void linkActivated(org.eclipse.ui.forms.events.HyperlinkEvent e) {
((CheckboxTableViewer) tableViewer).setAllChecked(true);
tableViewer.setSelection(new StructuredSelection(getAllEntities()));
}
});
toolkit.createLabel(this, " / ");
linkNone = toolkit.createHyperlink(this, "none", SWT.NONE);
linkNone.addHyperlinkListener(new HyperlinkAdapter() {
@Override
public void linkActivated(org.eclipse.ui.forms.events.HyperlinkEvent e) {
((CheckboxTableViewer) tableViewer).setAllChecked(false);
tableViewer.setSelection(StructuredSelection.EMPTY);
}
});
} else {
// create dummy labels to maintain layout
toolkit.createLabel(this, "");
toolkit.createLabel(this, "");
toolkit.createLabel(this, "");
toolkit.createLabel(this, "");
}
}
private void createListeners(final Composite parent) {
/**
* Ideally not required. However the table viewer is not getting laid out properly on performing
* "maximize + restore" So this is a hack to make sure that the table is laid out again on re-size of the window
*/
addPaintListener(new PaintListener() {
@Override
public void paintControl(PaintEvent e) {
parent.layout();
}
});
clusterListener = createClusterListener();
GlusterDataModelManager.getInstance().addClusterListener(clusterListener);
addDisposeListener(new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent e) {
toolkit.dispose();
GlusterDataModelManager.getInstance().removeClusterListener(clusterListener);
}
});
}
protected abstract ClusterListener createClusterListener();
protected abstract String[] getColumnNames();
protected abstract void setColumnProperties(Table table);
protected abstract IBaseLabelProvider getLabelProvider();
protected abstract IContentProvider getContentProvider();
protected abstract List<T> getAllEntities();
public void addDoubleClickListener(IDoubleClickListener listener) {
tableViewer.addDoubleClickListener(listener);
}
private void setupPageLayout() {
final GridLayout layout = new GridLayout(5, false);
layout.verticalSpacing = 10;
layout.marginTop = 10;
setLayout(layout);
}
protected void setupTable(Composite parent, Table table) {
table.setHeaderVisible(true);
table.setLinesVisible(false);
TableColumnLayout tableColumnLayout = guiHelper.createTableColumnLayout(table, getColumnNames());
parent.setLayout(tableColumnLayout);
setColumnProperties(table);
}
private void createTableViewer(Composite parent) {
int style = SWT.FLAT | SWT.FULL_SELECTION;
style |= (multiSelection ? SWT.MULTI : SWT.SINGLE);
if(useCheckboxes) {
tableViewer = CheckboxTableViewer.newCheckList(parent, style);
} else {
tableViewer = new TableViewer(parent, style);
}
tableViewer.setLabelProvider(getLabelProvider());
tableViewer.setContentProvider(getContentProvider());
setupTable(parent, tableViewer.getTable());
}
private Composite createTableViewerComposite() {
Composite tableViewerComposite = new Composite(this, SWT.NO);
tableViewerComposite.setLayout(new FillLayout(SWT.HORIZONTAL));
tableViewerComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
GridData layoutData = new GridData();
layoutData.horizontalSpan=5;
layoutData.grabExcessHorizontalSpace = true;
layoutData.horizontalAlignment = SWT.FILL;
layoutData.verticalAlignment = SWT.FILL;
layoutData.grabExcessVerticalSpace = true;
tableViewerComposite.setLayoutData(layoutData);
return tableViewerComposite;
}
private void setupTableViewer(IWorkbenchSite site, final Text filterText) {
Composite tableViewerComposite = createTableViewerComposite();
createTableViewer(tableViewerComposite);
site.setSelectionProvider(tableViewer);
if(useCheckboxes) {
// make sure that table selection is driven by checkbox selection
guiHelper.configureCheckboxTableViewer((CheckboxTableViewer)tableViewer);
}
// Create a case insensitive filter for the table viewer using the filter text field
guiHelper.createFilter(tableViewer, filterText, false);
tableViewer.setComparator(createViewerComparator());
for (int columnIndex = 0; columnIndex < tableViewer.getTable().getColumnCount(); columnIndex++) {
TableColumn column = tableViewer.getTable().getColumn(columnIndex);
column.addSelectionListener(getColumnSelectionAdapter(column, columnIndex));
}
}
private SelectionAdapter getColumnSelectionAdapter(final TableColumn column, final int columnIndex) {
return new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
ViewerComparator viewerComparator = tableViewer.getComparator();
if(viewerComparator instanceof TableViewerComparator) {
TableViewerComparator comparator = (TableViewerComparator)viewerComparator;
comparator.setColumn(columnIndex);
tableViewer.getTable().setSortDirection(comparator.getDirection());
tableViewer.getTable().setSortColumn(column);
tableViewer.refresh();
}
}
};
}
protected abstract ViewerComparator createViewerComparator();
/* (non-Javadoc)
* @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
*/
@Override
public void selectionChanged(IWorkbenchPart part, ISelection selection) {
}
}
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