ummisco.gama.ui.viewers.csv.CSVLabelProvider.java Source code

Introduction

Here is the source code for ummisco.gama.ui.viewers.csv.CSVLabelProvider.java

Source

/*********************************************************************************************
 *
 * 'CSVLabelProvider.java, in plugin ummisco.gama.ui.viewers, is part of the source code of the GAMA modeling and
 * simulation platform. (c) 2007-2016 UMI 209 UMMISCO IRD/UPMC & Partners
 *
 * Visit https://github.com/gama-platform/gama for license information and developers contact.
 * 
 *
 **********************************************************************************************/
package ummisco.gama.ui.viewers.csv;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;

import ummisco.gama.ui.utils.WorkbenchHelper;
import ummisco.gama.ui.viewers.csv.model.CSVRow;
import ummisco.gama.ui.viewers.csv.text.SearchResultStyle;

/**
 *
 * @author fhenri
 *
 */
public class CSVLabelProvider extends StyledCellLabelProvider {

    // implements ITableLabelProvider

    private String searchText;
    private final Color searchColor;

    /**
     *
     */
    public CSVLabelProvider() {
        searchColor = WorkbenchHelper.getDisplay().getSystemColor(SWT.COLOR_YELLOW);
    }

    /**
     * @param element
     * @param columnIndex
     * @return
     */
    public Image getColumnImage(final Object element, final int columnIndex) {
        return null;
    }

    /**
     * @param element
     * @param columnIndex
     * @return
     */
    public String getColumnText(final Object element, final int columnIndex) {
        final CSVRow row = (CSVRow) element;

        if (row.getEntries().size() > columnIndex) {
            return row.getEntries().get(columnIndex).toString();
        }

        return "";
    }

    /**
     * @see org.eclipse.jface.viewers.BaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
     */
    @Override
    public void addListener(final ILabelProviderListener listener) {
    }

    /**
     * @see org.eclipse.jface.viewers.BaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String)
     */
    @Override
    public boolean isLabelProperty(final Object element, final String property) {
        return true;
    }

    /**
     * @see org.eclipse.jface.viewers.BaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
     */
    @Override
    public void removeListener(final ILabelProviderListener listener) {
    }

    /**
     * @param searchText
     */
    public void setSearchText(final String searchText) {
        this.searchText = searchText;
    }

    /**
     * @see org.eclipse.jface.viewers.StyledCellLabelProvider#dispose()
     */
    @Override
    public void dispose() {
    }

    /**
     * @see org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse.jface.viewers.ViewerCell)
     */
    @Override
    public void update(final ViewerCell cell) {
        final CSVRow element = (CSVRow) cell.getElement();
        final int index = cell.getColumnIndex();
        final String columnText = getColumnText(element, index);
        cell.setText(columnText);
        cell.setImage(null);
        if (searchText != null && searchText.length() > 0) {
            final int intRangesCorrectSize[] = SearchResultStyle.getSearchTermOccurrences(searchText, columnText);
            final List<StyleRange> styleRange = new ArrayList<StyleRange>();
            for (int i = 0; i < intRangesCorrectSize.length / 2; i++) {
                final StyleRange myStyleRange = new StyleRange(0, 0, null, searchColor);
                myStyleRange.start = intRangesCorrectSize[i];
                myStyleRange.length = intRangesCorrectSize[++i];
                styleRange.add(myStyleRange);
            }
            cell.setStyleRanges(styleRange.toArray(new StyleRange[styleRange.size()]));
        } else {
            cell.setStyleRanges(null);
        }

        super.update(cell);
    }
}