com.jorambarrez.DndNode.java Source code

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Here is the source code for com.jorambarrez.DndNode.java

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/* 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.jorambarrez;

import com.vaadin.ui.DragAndDropWrapper;

/**
 * @author Joram Barrez
 */
public class DndNode extends DragAndDropWrapper implements Node {

    private static final long serialVersionUID = 1L;

    protected static final String STYLE_DND_NODE = "dnd-node";

    protected BasicNode wrappedNode;

    public DndNode(STATE state) {
        super(new BasicNode());
        this.wrappedNode = (BasicNode) getCompositionRoot(); // DndWrapper extends custom component

        setDragStartMode(DragStartMode.COMPONENT);
        addStyleName(STYLE_DND_NODE);

        // The change state can update the size (so changing the size is done afterwards)
        changeState(state);
        setHeight(wrappedNode.getNodeHeight(), UNITS_PIXELS);
        setWidth(wrappedNode.getWidth(), UNITS_PIXELS);

        wrappedNode.addListener(new NodeClickListener(this));
    }

    public DndNode(STATE state, int width, int height) {
        this(state);
        setNodeWidth(width);
        setNodeHeight(height);
    }

    public DndNode(STATE state, String text) {
        this(state);
        setText(text);
    }

    public DndNode(STATE state, String text, int width, int height) {
        this(state, width, height);
        setText(text);
    }

    public boolean isProcessStep() {
        return wrappedNode.isProcessStep();
    }

    public boolean isEmpty() {
        return wrappedNode.isEmpty();
    }

    public boolean isCandidate() {
        return wrappedNode.isCandidate();
    }

    public void changeState(STATE state) {
        wrappedNode.changeState(state);

        if (isEmpty() || isCandidate()) {
            setDragStartMode(DragStartMode.NONE);
            if (getDropHandler() == null) {
                setDropHandler(new NodeDropHandler(this));
            }
        } else {
            setDragStartMode(DragStartMode.COMPONENT);
            setDropHandler(null);
        }
    }

    public void makeEditable() {
        wrappedNode.makeEditable();
    }

    public int getNodeWidth() {
        return wrappedNode.getNodeWidth();
    }

    public void setNodeWidth(int width) {
        setWidth(width, UNITS_PIXELS);
        wrappedNode.setNodeHeight(width);
    }

    public void setNodeHeight(int height) {
        wrappedNode.setNodeHeight(height);
        setHeight(height, UNITS_PIXELS);
    }

    public int getNodeHeight() {
        return wrappedNode.getNodeHeight();
    }

    public void setText(String text) {
        wrappedNode.setText(text);
    }

    public String getText() {
        return wrappedNode.getText();
    }

    public void setIndex(int index) {
        wrappedNode.setIndex(index);
    }

    public int getIndex() {
        return wrappedNode.getIndex();
    }

    public String getProperty(String key) {
        return wrappedNode.getProperty(key);
    }

    public String getPropertyType(String key) {
        return wrappedNode.getPropertyType(key);
    }

    public void setProperty(String key, String value, String type) {
        wrappedNode.setProperty(key, value, type);
    }

    @Override
    public String toString() {
        return wrappedNode.toString();
    }

}