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.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.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.theme.base.client.panel.FramedPanelAppearance; import com.sencha.gxt.widget.core.client.ContentPanel; import com.sencha.gxt.widget.core.client.ContentPanel.ContentPanelAppearance; 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; 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.setChartShadow(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.setTextAnchor(TextAnchor.MIDDLE); textConfig.setFill(RGB.WHITE); SeriesLabelConfig<Data> labelConfig = new SeriesLabelConfig<Data>(); labelConfig.setNumericLabelProvider(null); 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() { @Override public void onSeriesSelection(SeriesSelectionEvent event) { Info.display("Click", event.getValue().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()); } }); ToolBar toolBar = new ToolBar(); toolBar.add(regenerate); toolBar.add(animation); ContentPanel panel = new ContentPanel(GWT.<ContentPanelAppearance> create(FramedPanelAppearance.class)); panel.getElement().getStyle().setMargin(10, Unit.PX); panel.setCollapsible(true); panel.setHeadingText("Pie Renderer Chart"); panel.setPixelSize(620, 500); panel.setBodyBorder(true); panel.setBodyStyleName("white-bg"); VerticalLayoutContainer layout = new VerticalLayoutContainer(); layout.setBorders(true); 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()); } }