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| package piecolor;
import java.util.List;
import java.util.stream.IntStream;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.geometry.Insets;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.chart.PieChart;
import javafx.scene.control.Dialog;
import javafx.scene.control.Label;
import javafx.scene.control.Tooltip;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.CornerRadii;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.scene.layout.Region;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Paint;
import javafx.scene.paint.RadialGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Rectangle;
import javafx.stage.Modality;
import javafx.stage.Stage;
public final class Main extends Application {
final static int MIN_SERIES_NUMBER = 2;
final static int MAX_SERIES_NUMBER = 5;
final static int MAX_SERIES_VALUE = 10;
private PieChart createChart() {
final int seriesCount = (int) Math.max(MIN_SERIES_NUMBER, MAX_SERIES_NUMBER * Math.random());
final PieChart chart = new PieChart();
IntStream.range(0, seriesCount)
.mapToObj(index -> {
final String name = String.format("Serie %d", index + 1);
final double value = MAX_SERIES_VALUE * Math.random();
return new PieChart.Data(name, value);
})
.forEach(chart.getData()::add);
return chart;
}
private PieChart pieChart;
@Override
public void start(final Stage primaryStage) {
pieChart = createChart();
final StackPane root = new StackPane();
root.getChildren().add(pieChart);
final Scene scene = new Scene(root, 600, 600);
primaryStage.setTitle("Test");
primaryStage.setScene(scene);
primaryStage.show();
Platform.runLater(this::findOutBackgrounds);
// ScenicView.show(scene);
}
private void findOutBackgrounds() {
IntStream.range(0, pieChart.getData().size())
.forEach(this::findOutBackground);
}
private void findOutBackground(int seriesIndex) {
final String selector = String.format(".data%d", seriesIndex);
final Node node1 = pieChart.lookup(selector);
final Node node2 = pieChart.getData().get(seriesIndex).getNode();
assert (node1 != null);
assert (node1 == node2);
assert (node1 instanceof Region);
Region region = (Region) node1;
final Background background = region.getBackground();
final Region backgroundArea = new Region();
VBox.setVgrow(backgroundArea, Priority.ALWAYS);
backgroundArea.setMinSize(500, 500);
backgroundArea.setBackground(background);
Tooltip.install(backgroundArea, new Tooltip("Series' background"));
//
final VBox root = new VBox();
root.setFillWidth(true);
final HBox fillRow = new HBox();
VBox.setVgrow(fillRow, Priority.NEVER);
final int fillNumber = background.getFills().size();
IntStream.range(0, fillNumber)
.mapToObj(fillIndex -> {
final BackgroundFill fill = background.getFills().get(fillIndex);
final Paint paint = fill.getFill();
System.out.println(paint.getClass());
final Region fillArea = new Region();
fillArea.setMinSize(50, 50);
fillArea.setBackground(new Background(new BackgroundFill(paint, CornerRadii.EMPTY, Insets.EMPTY)));
Tooltip.install(fillArea, new Tooltip(String.format("Fill #%d", fillIndex)));
HBox.setHgrow(fillArea, Priority.NEVER);
return fillArea;
})
.forEach(fillRow.getChildren()::add);
final Region filler1 = new Region();
HBox.setHgrow(filler1, Priority.ALWAYS);
fillRow.getChildren().add(filler1);
root.getChildren().addAll(backgroundArea, fillRow);
//
IntStream.range(0, fillNumber)
.mapToObj(fillIndex -> {
final BackgroundFill fill = background.getFills().get(fillIndex);
final Paint paint = fill.getFill();
final HBox colorRow = new HBox();
VBox.setVgrow(colorRow, Priority.NEVER);
colorRow.getChildren().add(new Label(String.format("Fill #%d", fillIndex)));
if (paint instanceof Color) {
final Rectangle colorArea = new Rectangle(25, 25);
colorArea.setFill(paint);
Tooltip.install(colorArea, new Tooltip("Single color"));
colorRow.getChildren().add(colorArea);
} else if (paint instanceof LinearGradient || paint instanceof RadialGradient) {
final List<Stop> stops = (paint instanceof LinearGradient) ? ((LinearGradient) paint).getStops() : ((RadialGradient) paint).getStops();
final String gradientType = (paint instanceof LinearGradient) ? "Linear" : "Radial";
final int stopNumber = stops.size();
IntStream.range(0, stopNumber)
.mapToObj(stopIndex -> {
final Stop stop = stops.get(stopIndex);
final Color color = stop.getColor();
final Rectangle colorArea = new Rectangle(25, 25);
colorArea.setFill(color);
Tooltip.install(colorArea, new Tooltip(String.format("%s color #%d", gradientType, stopIndex)));
return colorArea;
})
.forEach(colorRow.getChildren()::add);
}
return colorRow;
})
.forEach(root.getChildren()::add);
final String title = String.format("%d - %s", seriesIndex, pieChart.getData().get(seriesIndex).getName());
final Dialog dialog = new Dialog();
dialog.setTitle(title);
dialog.getDialogPane().setContent(root);
dialog.initModality(Modality.NONE);
dialog.initOwner(region.getScene().getWindow());
dialog.show();
}
public static void main(String[] args) {
launch(args);
}
} |
