/**
* Copyright (C) 2014 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dashbuilder.renderer.google.client;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.googlecode.gwt.charts.client.ChartPackage;
import com.googlecode.gwt.charts.client.corechart.PieChart;
import com.googlecode.gwt.charts.client.corechart.PieChartOptions;
import org.dashbuilder.displayer.DisplayerAttributeGroupDef;
import org.dashbuilder.displayer.DisplayerEditorConfig;
import org.dashbuilder.displayer.impl.DisplayerEditorConfigImpl;
public class GooglePieChartDisplayer extends GoogleXAxisChartDisplayer {
private PieChart chart;
protected Panel filterPanel;
@Override
public ChartPackage getPackage() {
return ChartPackage.CORECHART;
}
@Override
public Widget createVisualization() {
chart = new PieChart();
chart.addSelectHandler(createSelectHandler(chart));
chart.draw(createTable(), createOptions());
HTML titleHtml = new HTML();
if (displayerSettings.isTitleVisible()) {
titleHtml.setText(displayerSettings.getTitle());
}
VerticalPanel verticalPanel = new VerticalPanel();
verticalPanel.add(titleHtml);
verticalPanel.add(filterPanel = new SimplePanel());
verticalPanel.add(chart);
return verticalPanel;
}
@Override
public DisplayerEditorConfig getDisplayerEditorConfig() {
return new DisplayerEditorConfigImpl()
.supportsAttribute( DisplayerAttributeGroupDef.COMMON_GROUP )
.supportsAttribute( DisplayerAttributeGroupDef.CHART_GROUP );
}
protected void updateVisualization() {
filterPanel.clear();
Widget filterReset = createCurrentSelectionWidget();
if (filterReset != null) filterPanel.add(filterReset);
chart.draw(createTable(), createOptions());
}
private PieChartOptions createOptions() {
PieChartOptions options = PieChartOptions.create();
options.setWidth(displayerSettings.getChartWidth());
options.setHeight(displayerSettings.getChartHeight());
options.setIs3D(displayerSettings.isChart3D());
options.setLegend( createChartLegend( displayerSettings ) );
options.setColors(createColorArray(googleTable));
options.setChartArea(createChartArea());
return options;
}
}