ch.hsr.ifs.cdt.metriculator.views.MetricColumn.java Source code

Introduction

Here is the source code for ch.hsr.ifs.cdt.metriculator.views.MetricColumn.java

Source

/******************************************************************************
* Copyright (c) 2011 Institute for Software, HSR Hochschule fuer Technik 
* Rapperswil, University of applied sciences and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html 
*
* Contributors:
*    Ueli Kunz <kunz@ideadapt.net>, Jules Weder <julesweder@gmail.com> - initial API and implementation
******************************************************************************/

package ch.hsr.ifs.cdt.metriculator.views;

import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.swt.widgets.Widget;

import ch.hsr.ifs.cdt.metriculator.model.AbstractMetric;

/**
 * @author Ueli Kunz
 * */
public final class MetricColumn {

    static final int DEFAULT_WIDTH = 100;
    static final String DATAKEY_IS_FILLER = "isFiller";
    static final String DATAKEY_COLUMNMETRIC = "metric";

    public static void showColumn(TreeColumn column) {
        column.setWidth(DEFAULT_WIDTH);
        column.setResizable(true);
    }

    public static void hideColumn(TreeColumn column) {
        column.setWidth(0);
        column.setResizable(false);
    }

    public static void showColumn(TableColumn column) {
        column.setWidth(DEFAULT_WIDTH);
        column.setResizable(true);
    }

    public static void hideColumn(TableColumn column) {
        column.setWidth(0);
        column.setResizable(false);
    }

    public static TreeColumn createFor(AbstractMetric metric, TreeViewer treeViewer) {

        TreeColumn column = new TreeColumn(treeViewer.getTree(), SWT.RIGHT);
        column.setText(metric.getName());
        column.setToolTipText(metric.getDescription());

        setMetric(metric, column);
        MetricColumnViewerSorter.registerFor(column, treeViewer);

        return column;
    }

    public static TableColumn createFor(AbstractMetric metric, TableViewer tableViewer) {

        TableColumn column = new TableColumn(tableViewer.getTable(), SWT.RIGHT);
        column.setText(metric.getName());
        column.setToolTipText(metric.getDescription());

        setMetric(metric, column);
        MetricColumnViewerSorter.registerFor(column, tableViewer);

        return column;
    }

    public static AbstractMetric getMetric(Widget column) {
        return (AbstractMetric) column.getData(DATAKEY_COLUMNMETRIC);
    }

    public static void setMetric(AbstractMetric metric, Widget column) {
        column.setData(DATAKEY_COLUMNMETRIC, metric);
    }

    public static void createFillerColumnOnce(Tree tree) {

        if (isWindows()) {
            return;
        }

        if (hasFillerColumn(tree.getColumns())) {
            return;
        }

        TreeColumn column = new TreeColumn(tree, SWT.RIGHT);
        column.setMoveable(false);
        column.setResizable(true);
        column.setWidth(10);
        column.setData(DATAKEY_IS_FILLER, true);
    }

    private static boolean isWindows() {
        return (System.getProperty("os.name", "unknown").toLowerCase().indexOf("windows") >= 0);
    }

    public static void createFillerColumnOnce(Table table) {

        if (isWindows()) {
            return;
        }

        if (hasFillerColumn(table.getColumns())) {
            return;
        }

        TableColumn column = new TableColumn(table, SWT.RIGHT);
        column.setMoveable(false);
        column.setResizable(true);
        column.setWidth(10);
        column.setData(DATAKEY_IS_FILLER, true);
    }

    private static boolean hasFillerColumn(Item... items) {
        for (Item column : items) {
            if (isFiller(column)) {
                return true;
            }
        }
        return false;
    }

    public static boolean isFiller(Item column) {
        if (column.getData(DATAKEY_IS_FILLER) != null && ((Boolean) column.getData(DATAKEY_IS_FILLER)) == true) {
            return true;
        }
        return false;
    }
}