com.arm.cmsis.pack.widgets.RteDeviceTreeContentProvider.java Source code

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Here is the source code for com.arm.cmsis.pack.widgets.RteDeviceTreeContentProvider.java

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/*******************************************************************************
* Copyright (c) 2014 ARM Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/

package com.arm.cmsis.pack.widgets;

import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;

import com.arm.cmsis.pack.generic.IAttributes;
import com.arm.cmsis.pack.rte.devices.IRteDeviceItem;
import com.arm.cmsis.pack.ui.CpPlugInUI;

/**
 *
 */
public class RteDeviceTreeContentProvider extends LabelProvider implements ITreeContentProvider {

    IRteDeviceItem devices = null;

    /**
     * 
     */
    public RteDeviceTreeContentProvider() {
        // TODO Auto-generated constructor stub
    }

    @Override
    public void dispose() {
        devices = null;
    }

    @Override
    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        if (oldInput != newInput) {
            if (newInput != null && newInput instanceof IRteDeviceItem)
                devices = (IRteDeviceItem) newInput;
            else
                devices = null;
        }
    }

    @Override
    public Object[] getElements(Object inputElement) {
        return getChildren(inputElement);
    }

    @Override
    public Object[] getChildren(Object parentElement) {
        if (parentElement instanceof IRteDeviceItem)
            return ((IRteDeviceItem) parentElement).getChildArray();
        return null;
    }

    @Override
    public Object getParent(Object childElement) {
        if (childElement instanceof IRteDeviceItem) {
            return ((IRteDeviceItem) childElement).getParent();
        }
        return null;
    }

    @Override
    public boolean hasChildren(Object element) {
        if (element instanceof IRteDeviceItem)
            return ((IRteDeviceItem) element).hasChildren();
        return false;
    }

    @Override
    public Image getImage(Object element) {
        if (hasChildren(element))
            return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER);
        return CpPlugInUI.getImage(CpPlugInUI.ICON_DEVICE);
    }

    @Override
    public String getText(Object element) {
        if (element instanceof IRteDeviceItem) {
            IRteDeviceItem item = (IRteDeviceItem) element;
            return item.getName();
        }
        return IAttributes.EMPTY_STRING;
    }
}