de.ovgu.cide.ColoredIDEImages.java Source code

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Here is the source code for de.ovgu.cide.ColoredIDEImages.java

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/**
Copyright 2010 Christian Kstner
    
This file is part of CIDE.
    
CIDE is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.
    
CIDE is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with CIDE.  If not, see <http://www.gnu.org/licenses/>.
    
See http://www.fosd.de/cide/ for further information.
*/
package de.ovgu.cide;

import java.net.URL;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;
import org.osgi.framework.Bundle;

public class ColoredIDEImages {

    private static final IPath ICONS_PATH = new Path("$nl$/icons"); //$NON-NLS-1$

    public static final String COLLAPSE = "collapseall.gif"; //$NON-NLS-1$

    public static final String EXPAND = "expandall.gif"; //$NON-NLS-1$

    public static final String LINK_WITH_EDITOR = "synced.gif"; //$NON-NLS-1$

    public static final String SETFOCUS = "setfocus.gif"; //$NON-NLS-1$

    public static final String REFRESH = "refresh.gif"; //$NON-NLS-1$

    public static final String CLEAR = "clear.gif"; //$NON-NLS-1$

    public static final String ADD_TO_TRAY = "add.gif"; //$NON-NLS-1$

    public static final String CHECKED_IMAGE = "checked.gif";

    public static final String UNCHECKED_IMAGE = "unchecked.gif";

    public static final String COLOREDJ = "coloredj.gif"; //$NON-NLS-1$
    public static final String INTERACTION = "interaction.gif"; //$NON-NLS-1$

    // ---- Helper methods to access icons on the file system
    // --------------------------------------

    /**
     * loads icon from c and d subdirectories!
     */
    public static void setImageDescriptors(IAction action, String type) {
        ImageDescriptor id = create("d", type); //$NON-NLS-1$
        if (id != null)
            action.setDisabledImageDescriptor(id);

        id = create("c", type); //$NON-NLS-1$
        if (id != null) {
            action.setHoverImageDescriptor(id);
            action.setImageDescriptor(id);
        } else {
            action.setImageDescriptor(ImageDescriptor.getMissingImageDescriptor());
        }
    }

    private static ImageDescriptor create(String prefix, String name) {
        IPath path = ICONS_PATH.append(prefix).append(name);
        return createImageDescriptor(CIDECorePlugin.getDefault().getBundle(), path);
    }

    /*
     * Since 3.1.1. Load from icon paths with $NL$ (from c and d
     * subdirectories!)
     */
    public static ImageDescriptor createImageDescriptor(Bundle bundle, IPath path) {
        URL url = FileLocator.find(bundle, path, null);
        if (url != null) {
            return ImageDescriptor.createFromURL(url);
        }
        return null;
    }

    public static Image getCheckImage(boolean isSelected) {
        String key = isSelected ? CHECKED_IMAGE : UNCHECKED_IMAGE;

        return getImage(key);
    }

    public static Image getImage(String key) {
        Image i = imageRegistry.get(key);
        if (i == null) {
            imageRegistry.put(key, create("", key));
            return imageRegistry.get(key);
        }
        return i;
    }

    // For the checkbox images
    private static ImageRegistry imageRegistry = new ImageRegistry();

}