/*
* Copyright (c) 2004-2011 Marco Maccaferri 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:
* Marco Maccaferri - initial API and implementation
*/
package org.eclipsetrader.ui.internal.preferences;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.osgi.util.NLS;
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.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipsetrader.core.feed.TimeSpan;
import org.eclipsetrader.ui.internal.UIActivator;
import org.eclipsetrader.ui.internal.ats.TimeSpanDialog;
public class BarsPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
private ListViewer viewer;
private Button add;
private Button remove;
private List<TimeSpan> list = new ArrayList<TimeSpan>();
public BarsPreferencePage() {
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
*/
@Override
public void init(IWorkbench workbench) {
setPreferenceStore(UIActivator.getDefault().getPreferenceStore());
}
/* (non-Javadoc)
* @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createContents(Composite parent) {
Composite content = new Composite(parent, SWT.NONE);
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 2;
gridLayout.marginWidth = gridLayout.marginHeight = 0;
content.setLayout(gridLayout);
Label label = new Label(content, SWT.NONE);
label.setText("Bar aggregation sizes to import from backfill data providers.");
label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1));
viewer = new ListViewer(content, SWT.BORDER | SWT.MULTI);
viewer.getControl().setLayoutData(new GridData(GridData.FILL_BOTH));
viewer.setContentProvider(new ArrayContentProvider());
viewer.setLabelProvider(new LabelProvider() {
@Override
public String getText(Object element) {
TimeSpan timeSpan = (TimeSpan) element;
return NLS.bind("{0} {1}", new Object[] {
String.valueOf(timeSpan.getLength()), timeSpan.getUnits()
});
}
});
viewer.setComparator(new ViewerComparator() {
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
TimeSpan ts1 = (TimeSpan) e1;
TimeSpan ts2 = (TimeSpan) e2;
if (ts1.getUnits() != ts2.getUnits()) {
return ts2.getUnits().ordinal() - ts1.getUnits().ordinal();
}
return ts1.getLength() - ts2.getLength();
}
});
viewer.setInput(list);
Composite buttons = new Composite(content, SWT.NONE);
gridLayout = new GridLayout(1, false);
gridLayout.marginWidth = gridLayout.marginHeight = 0;
buttons.setLayout(gridLayout);
buttons.setLayoutData(new GridData(SWT.CENTER, SWT.TOP, false, false));
add = new Button(buttons, SWT.PUSH);
add.setText("Add");
add.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
add.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
TimeSpanDialog dlg = new TimeSpanDialog(getShell());
if (dlg.open() == TimeSpanDialog.OK) {
list.add(dlg.getSelection());
viewer.refresh();
}
}
});
remove = new Button(buttons, SWT.PUSH);
remove.setText("Remove");
remove.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
remove.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
list.removeAll(selection.toList());
viewer.refresh();
}
});
remove.setEnabled(false);
performDefaults();
viewer.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
remove.setEnabled(!event.getSelection().isEmpty());
}
});
return content;
}
/* (non-Javadoc)
* @see org.eclipse.jface.preference.PreferencePage#performDefaults()
*/
@Override
protected void performDefaults() {
IPreferenceStore preferences = getPreferenceStore();
list.clear();
String value = preferences.getString(UIActivator.PREFS_CHART_BARS);
String[] s = value.split(",");
for (int i = 0; i < s.length; i++) {
TimeSpan timeSpan = TimeSpan.fromString(s[i]);
if (timeSpan != null) {
list.add(timeSpan);
}
}
viewer.refresh();
super.performDefaults();
}
/* (non-Javadoc)
* @see org.eclipse.jface.preference.PreferencePage#performOk()
*/
@Override
public boolean performOk() {
IPreferenceStore preferences = getPreferenceStore();
StringBuilder sb = new StringBuilder();
for (TimeSpan timeSpan : list) {
sb.append(timeSpan).append(",");
}
sb.deleteCharAt(sb.length() - 1);
preferences.setDefault(UIActivator.PREFS_CHART_BARS, sb.toString());
return super.performOk();
}
}