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 *
 *  - Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the distribution.
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 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package ensemble.samplepage;


import ensemble.samples.charts.pie.chart.PieChartApp;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Node;
import javafx.scene.chart.PieChart;
import javafx.scene.chart.PieChart.Data;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.MenuItem;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableView;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableColumn.CellDataFeatures;
import javafx.scene.control.TableRow;
import javafx.scene.control.cell.TextFieldTableCell;
import javafx.scene.input.ContextMenuEvent;
import javafx.util.StringConverter;


public class PieChartDataVisualizer extends TableView<Data> {
    
    PieChart chart;

    public PieChartDataVisualizer(final PieChart chart) {
        this.chart = chart;
        setItems(chart.getData());
        setEditable(true);
        setMinHeight(100);
        setMinWidth(100);
        
        chart.dataProperty().addListener((ObservableValue<? extends ObservableList<Data>> ov, ObservableList<Data> t, ObservableList<Data> t1) -> {
            setItems(t1);
        });
        
        TableColumn<Data, String> nameColumn = new TableColumn<>("Name");
        nameColumn.setCellValueFactory((CellDataFeatures<Data, String> p) -> p.getValue().nameProperty());
        nameColumn.setCellFactory(TextFieldTableCell.<Data>forTableColumn());
        nameColumn.setEditable(true);
        nameColumn.setSortable(false);
        nameColumn.setMinWidth(80);
        
        TableColumn<Data, Number> pieValueColumn = new TableColumn<>("PieValue");
        pieValueColumn.setCellValueFactory((CellDataFeatures<Data, Number> p) -> p.getValue().pieValueProperty());
        pieValueColumn.setCellFactory(TextFieldTableCell.<Data, Number>forTableColumn(new StringConverter<Number>() {

                @Override
                public String toString(Number t) {
                    return t == null ? null : t.toString();
                }

                @Override
                public Number fromString(String string) {
                    if (string == null) {
                        return null;
                    }
                    try {
                        return (Double) new Double(string);
                    } catch (Exception ignored) {
                        return 0;
                    }
                }
            }));
        pieValueColumn.setEditable(true);
        pieValueColumn.setSortable(false);
        pieValueColumn.setMinWidth(80);
        
        setOnContextMenuRequested((ContextMenuEvent t) -> {
            Node node = t.getPickResult().getIntersectedNode();
            while (node != null && !(node instanceof TableRow) && !(node instanceof TableCell)) {
                node = node.getParent();
            }
            if (node instanceof TableCell) {
                TableCell tc = (TableCell) node;
                getSelectionModel().select(tc.getIndex());
            } else if (node instanceof TableRow) {
                TableRow tr = (TableRow) node;
                if (tr.getItem() == null) {
                    getSelectionModel().clearSelection();
                } else {
                    getSelectionModel().select(tr.getIndex());
                }
            }
        });

        MenuItem item1 = new MenuItem("Insert item");
        item1.setOnAction(new EventHandler<ActionEvent>() {
            long itemIndex = 0;
            @Override
            public void handle(ActionEvent t) {
                int index = getSelectionModel().getSelectedIndex();
                if (index < 0 || index >= chart.getData().size()) {
                    index = chart.getData().size();
                }
                chart.getData().add(index, new Data("Item " + (++itemIndex), Math.random() * 100));
                getSelectionModel().select(index);
            }
        });

        MenuItem item2 = new MenuItem("Delete item");
        item2.setOnAction((ActionEvent t) -> {
            int index = getSelectionModel().getSelectedIndex();
            if (index >= 0 && index < chart.getData().size()) {
                chart.getData().remove(index);
            }
        });

        MenuItem item3 = new MenuItem("Clear data");
        item3.setOnAction((ActionEvent t) -> {
            chart.getData().clear();
        });

        MenuItem item4 = new MenuItem("Set new data");
        item4.setOnAction((ActionEvent t) -> {
            chart.setData(PieChartApp.generateData());
        });

        setContextMenu(new ContextMenu(item1, item2, item3, item4));
        getColumns().setAll(nameColumn, pieValueColumn);
    }
}