com.kdmanalytics.toif.ui.views.DefectDescStyledLabelProvider.java Source code

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Here is the source code for com.kdmanalytics.toif.ui.views.DefectDescStyledLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2016 KDM Analytics, Inc. All rights reserved. This program and
 * the accompanying materials are made available under the terms of the Open
 * Source Initiative OSI - Open Software License v3.0 which accompanies this
 * distribution, and is available at
 * http://www.opensource.org/licenses/osl-3.0.php/
 ******************************************************************************/

package com.kdmanalytics.toif.ui.views;

import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.ui.PlatformUI;

import com.kdmanalytics.toif.ui.common.IFindingEntry;

/**
 * 
 * @author Ken Duck
 * 
 */
class DefectDescStyledLabelProvider extends StyledCellLabelProvider {

    /**
     * The hyperlink blue, from https://en.wikipedia.org/wiki/Help:Link_color
     */
    private static final Color FOREGROUND_BLUE = new Color(PlatformUI.getWorkbench().getDisplay(),
            new RGB(6, 69, 173));

    /**
     * 
     */
    private TreeViewer viewer;

    /**
     * 
     */
    public DefectDescStyledLabelProvider(TreeViewer viewer) {
        this.viewer = viewer;
    }

    /**
     * Get the entry text for the specified column
     * 
     * @param entry
     * @param colIndex
     * @return
     */
    private String getColumnText(DefectNode entry, int colIndex) {
        switch (colIndex) {
        case 0: {
            String name = entry.getName();
            name = name.replaceAll("([^-])-([^-])", "$1$2");
            return name;
        }
        case 1: {
            return entry.getDescription();
        }
        }
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.CellLabelProvider#getToolTipText(java.lang. Object)
     */
    @Override
    public String getToolTipText(Object element) {
        if (element instanceof IFindingEntry) {
            IFindingEntry entry = ((IFindingEntry) element);
            return entry.getPath();
        }
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse.jface.viewers.ViewerCell)
     */
    public void update(final ViewerCell cell) {
        final DefectNode entry = (DefectNode) cell.getElement();
        int index = cell.getColumnIndex();
        final StyledString styledString = new StyledString(getColumnText(entry, index));

        String desc = entry.getDescription();
        if (desc.startsWith("http://") || desc.startsWith("https://")) {
            cell.setForeground(FOREGROUND_BLUE);
        }

        String text = styledString.toString();

        // This removed code is used to split the string into a number of separate
        // lines suitable for wrapping.
        //
        //
        // // How many characters will we allow per line?
        // Tree tree = (Tree)cell.getControl();
        //
        // // Use the client area minus the first column to see how much room we have
        // // for text.
        // Rectangle area = viewer.getTree().getClientArea();
        // TreeColumn column = tree.getColumn(0);
        // int width = area.width - column.getWidth();
        // if (width < 50) width = 50;
        // width -= 10;
        // GC gc = new GC(tree);
        // FontMetrics fm = gc.getFontMetrics();
        // int charWidth = fm.getAverageCharWidth();
        // int charCount = width / charWidth;
        // if (charCount < 10) charCount = 10;
        //
        // List<String> lines = new LinkedList<String>();
        //
        // while (text.length() > 0) {
        // // Break at space
        // int lastSpace = text.lastIndexOf(' ', charCount);
        // if (lastSpace > 10) {
        // lines.add(text.substring(0, lastSpace));
        // text = text.substring(lastSpace + 1);
        // continue;
        // }
        //
        // // Break at next space
        // int nextSpace = text.indexOf(' ', charCount);
        // if (nextSpace > 10) {
        // lines.add(text.substring(0, nextSpace));
        // text = text.substring(nextSpace + 1);
        // continue;
        // }
        //
        // // Just use whole string
        // lines.add(text);
        // text = "";
        // }
        //
        // // Add in \n characters
        // StringBuilder sb = new StringBuilder();
        // for (int i = 0; i < lines.size(); i++) {
        // if (i > 0) sb.append("\n");
        // sb.append(lines.get(i));
        // }
        //
        // cell.setText(sb.toString());
        cell.setText(text);
        cell.setStyleRanges(styledString.getStyleRanges());
    }

}