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/**
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* Copyright (C) 2018 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.descriptiveDataSet.matrix;
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import java.util.List;
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import org.eclipse.jface.window.ToolTip;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.graphics.Point;
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import org.eclipse.swt.layout.FillLayout;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.layout.GridLayout;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.swt.widgets.Label;
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import org.swtchart.Chart;
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import org.swtchart.IAxis;
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import org.swtchart.IBarSeries;
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import org.swtchart.ISeries.SeriesType;
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import org.swtchart.ISeriesLabel;
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import eu.etaxonomy.cdm.model.description.Feature;
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import eu.etaxonomy.cdm.model.description.State;
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import eu.etaxonomy.taxeditor.editor.l10n.Messages;
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/**
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* @author pplitzner
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* @since Jul 6, 2018
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*
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*/
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public class CategoricalChartTooltip extends ToolTip {
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static final String TOOLTIP_NOT_AVAILABLE = Messages.CategoricalChartTooltip_TOOLTIP_NOT_AVAILABLE;
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private CharacterMatrix matrix;
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public CategoricalChartTooltip(CharacterMatrix matrix) {
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super(matrix.getNatTable(), ToolTip.NO_RECREATE, false);
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this.matrix = matrix;
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}
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@Override
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protected Object getToolTipArea(Event event) {
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int col = matrix.getNatTable().getColumnPositionByX(event.x);
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int row = matrix.getNatTable().getRowPositionByY(event.y);
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return new Point(col, row);
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}
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@Override
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protected Composite createToolTipContentArea(Event event,
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Composite parent) {
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int colPos = matrix.getNatTable().getColumnPositionByX(event.x);
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int colIndex = matrix.getNatTable().getColumnIndexByPosition(colPos);
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Feature feature = matrix.getIndexToFeatureMap().get(colIndex);
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CategoricalDataHistogram histogram = matrix.getFeatureToHistogramMap().get(feature);
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Composite tooltip;
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if(histogram!=null && !histogram.getStates().isEmpty()){
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parent.setLayout(new GridLayout());
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tooltip = createTooltip(event, parent);
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}
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else{
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tooltip = new Composite(parent, SWT.NONE);
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tooltip.setLayout(new FillLayout());
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Label label = new Label(tooltip, SWT.NONE);
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label.setText(TOOLTIP_NOT_AVAILABLE);
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}
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return tooltip;
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}
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private Composite createTooltip(Event event, Composite parent) {
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Chart chart = new Chart(parent, SWT.NONE);
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chart.setLayoutData(new GridData(600, 300));
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//get histogram for column
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int colPos = matrix.getNatTable().getColumnPositionByX(event.x);
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int colIndex = matrix.getNatTable().getColumnIndexByPosition(colPos);
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Feature feature = matrix.getIndexToFeatureMap().get(colIndex);
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CategoricalDataHistogram histogram = matrix.getFeatureToHistogramMap().get(feature);
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// set chart title
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chart.getTitle().setText(feature.getLabel());
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IAxis xAxis = chart.getAxisSet().getXAxis(0);
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//initalize x and y axis values
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List<State> statesList = histogram.getStates();
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String[] states = new String[statesList.size()];
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double[] counts = new double[statesList.size()];
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int index = 0;
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for (State state : statesList) {
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states[index] = state.getLabel();
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counts[index] = histogram.getCount(state);
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index++;
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}
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xAxis.setCategorySeries(states);
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xAxis.enableCategory(true);
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xAxis.getTitle().setVisible(false);
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xAxis.getTick().setTickLabelAngle(25);
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IAxis yAxis = chart.getAxisSet().getYAxis(0);
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yAxis.getTitle().setVisible(false);
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chart.getLegend().setVisible(false);
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IBarSeries barSeries = (IBarSeries) chart.getSeriesSet()
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.createSeries(SeriesType.BAR, "state counts"); //$NON-NLS-1$
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ISeriesLabel seriesLabel = barSeries.getLabel();
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seriesLabel.setVisible(true);
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barSeries.setYSeries(counts);
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chart.getAxisSet().adjustRange();
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return chart;
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}
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@Override
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protected boolean shouldCreateToolTip(Event event) {
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//Differentiation between "index" and "position" is important here
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//"position" is the current visible index
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//"index" refers to the underlying data model
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int colPos = matrix.getNatTable().getColumnPositionByX(event.x);
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int colIndex = matrix.getNatTable().getColumnIndexByPosition(colPos);
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int rowPos = matrix.getNatTable().getRowPositionByY(event.y);
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Feature feature = matrix.getIndexToFeatureMap().get(colIndex);
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if(matrix.isShowTooltips()
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&& rowPos==1
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&& colIndex>=CharacterMatrix.LEADING_COLUMN_COUNT
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&& feature!=null
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&& feature.isSupportsCategoricalData()) {
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return true;
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}
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return false;
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}
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}
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