/**
* Sencha GXT 3.0.0b - Sencha for GWT
* Copyright(c) 2007-2012, Sencha, Inc.
* licensing@sencha.com
*
* http://www.sencha.com/products/gxt/license/
*/
package com.sencha.gxt.explorer.client.chart;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.editor.client.Editor.Path;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Widget;
import com.sencha.gxt.chart.client.chart.Chart;
import com.sencha.gxt.chart.client.chart.event.SeriesSelectionEvent;
import com.sencha.gxt.chart.client.chart.event.SeriesSelectionEvent.SeriesSelectionHandler;
import com.sencha.gxt.chart.client.chart.series.AreaHighlighter;
import com.sencha.gxt.chart.client.chart.series.PieSeries;
import com.sencha.gxt.chart.client.chart.series.SeriesLabelConfig;
import com.sencha.gxt.chart.client.chart.series.SeriesRenderer;
import com.sencha.gxt.chart.client.chart.series.Series.LabelPosition;
import com.sencha.gxt.chart.client.draw.Color;
import com.sencha.gxt.chart.client.draw.RGB;
import com.sencha.gxt.chart.client.draw.sprite.Sprite;
import com.sencha.gxt.chart.client.draw.sprite.TextSprite;
import com.sencha.gxt.chart.client.draw.sprite.TextSprite.TextAnchor;
import com.sencha.gxt.chart.client.draw.sprite.TextSprite.TextBaseline;
import com.sencha.gxt.core.client.ValueProvider;
import com.sencha.gxt.data.shared.LabelProvider;
import com.sencha.gxt.data.shared.ListStore;
import com.sencha.gxt.data.shared.ModelKeyProvider;
import com.sencha.gxt.data.shared.PropertyAccess;
import com.sencha.gxt.examples.resources.client.TestData;
import com.sencha.gxt.examples.resources.client.model.Data;
import com.sencha.gxt.explorer.client.model.Example.Detail;
import com.sencha.gxt.fx.client.Draggable;
import com.sencha.gxt.widget.core.client.ContentPanel;
import com.sencha.gxt.widget.core.client.FramedPanel;
import com.sencha.gxt.widget.core.client.Resizable;
import com.sencha.gxt.widget.core.client.button.TextButton;
import com.sencha.gxt.widget.core.client.button.ToggleButton;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
import com.sencha.gxt.widget.core.client.event.SelectEvent;
import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
import com.sencha.gxt.widget.core.client.info.Info;
import com.sencha.gxt.widget.core.client.toolbar.ToolBar;
@Detail(name = "Pie Renderer Chart", icon = "pierendererchart", category = "Charts")
public class PieRendererExample implements IsWidget, EntryPoint {
public interface DataPropertyAccess extends PropertyAccess<Data> {
ValueProvider<Data, Double> data1();
ValueProvider<Data, Double> data2();
ValueProvider<Data, Double> data3();
ValueProvider<Data, String> name();
@Path("name")
ModelKeyProvider<Data> nameKey();
}
private static final DataPropertyAccess dataAccess = GWT.create(DataPropertyAccess.class);
public Widget asWidget() {
final ListStore<Data> store = new ListStore<Data>(dataAccess.nameKey());
store.addAll(TestData.getData(5, 20, 100));
final Chart<Data> chart = new Chart<Data>();
chart.setDefaultInsets(20);
chart.setStore(store);
chart.setShadowChart(true);
final PieSeries<Data> series = new PieSeries<Data>();
series.setAngleField(dataAccess.data1());
series.addLengthField(dataAccess.data2());
series.setHighlighting(true);
TextSprite textConfig = new TextSprite();
textConfig.setFont("Arial");
textConfig.setFontSize(14);
textConfig.setTextBaseline(TextBaseline.MIDDLE);
textConfig.setTextAnchor(TextAnchor.MIDDLE);
textConfig.setFill(new RGB("#333"));
SeriesLabelConfig<Data> labelConfig = new SeriesLabelConfig<Data>();
labelConfig.setLabelPosition(LabelPosition.START);
labelConfig.setLabelContrast(true);
labelConfig.setValueProvider(dataAccess.name(), new LabelProvider<String>() {
@Override
public String getLabel(String item) {
return item.substring(0, 3);
}
});
labelConfig.setSpriteConfig(textConfig);
series.setLabelConfig(labelConfig);
chart.addSeries(series);
final Color[] colors = {
new RGB("#94ae0a"), new RGB("#115fa6"), new RGB("#a61120"), new RGB("#ff8809"), new RGB("#ffd13e"),
new RGB("#a61187"), new RGB("#24ad9a"), new RGB("#a66111")};
series.setRenderer(new SeriesRenderer<Data>() {
@Override
public void spriteRenderer(Sprite sprite, int index, ListStore<Data> store) {
double value = dataAccess.data1().getValue(store.get(index));
sprite.setFill(colors[(int) Math.round(value) % 8]);
sprite.setStroke(RGB.WHITE);
sprite.setStrokeWidth(2);
sprite.redraw();
}
});
series.setPopOutMargin(0);
series.setHighlighter(new AreaHighlighter());
series.addSeriesSelectionHandler(new SeriesSelectionHandler<Data>() {
@Override
public void onSeriesSelection(SeriesSelectionEvent<Data> event) {
Info.display("Click", event.getValueProvider().getValue(event.getItem()).toString());
}
});
TextButton regenerate = new TextButton("Reload Data");
regenerate.addSelectHandler(new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
store.clear();
store.addAll(TestData.getData(5, 20, 100));
chart.redrawChart();
}
});
ToggleButton animation = new ToggleButton("Animate");
animation.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
chart.setAnimated(event.getValue());
}
});
animation.setValue(true, true);
ToggleButton shadow = new ToggleButton("Shadow");
shadow.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
chart.setShadowChart(event.getValue());
chart.redrawChart();
}
});
shadow.setValue(true);
ToolBar toolBar = new ToolBar();
toolBar.add(regenerate);
toolBar.add(animation);
toolBar.add(shadow);
ContentPanel panel = new FramedPanel();
panel.getElement().getStyle().setMargin(10, Unit.PX);
panel.setCollapsible(true);
panel.setHeadingText("Pie Renderer Chart");
panel.setPixelSize(620, 500);
panel.setBodyBorder(true);
Resizable resize = new Resizable(panel);
resize.setMinHeight(400);
resize.setMinWidth(400);
new Draggable(panel, panel.getHeader()).setUseProxy(false);
VerticalLayoutContainer layout = new VerticalLayoutContainer();
panel.add(layout);
toolBar.setLayoutData(new VerticalLayoutData(1, -1));
layout.add(toolBar);
chart.setLayoutData(new VerticalLayoutData(1, 1));
layout.add(chart);
return panel;
}
public void onModuleLoad() {
RootPanel.get().add(asWidget());
}
}