ch.unifr.pai.twice.layout.client.singlepointer.SinglePointerLayout.java Source code

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Here is the source code for ch.unifr.pai.twice.layout.client.singlepointer.SinglePointerLayout.java

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package ch.unifr.pai.twice.layout.client.singlepointer;

/*
 * Copyright 2013 Oliver Schmid
 * 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.
 */
import ch.unifr.pai.twice.layout.client.DynamicLayout;
import ch.unifr.pai.twice.layout.client.eclipseLayout.MiceLayout;
import ch.unifr.pai.twice.layout.client.eclipseLayout.MiceTabLabel;
import ch.unifr.pai.twice.module.client.TWICEModule;
import ch.unifr.pai.twice.module.client.TWICEModuleController;

import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.user.client.ui.SimpleLayoutPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * The layout for cursor and at the moment for multicursor as well.
 * 
 * @author Oliver Schmid
 * 
 */
public class SinglePointerLayout extends DynamicLayout {

    MiceLayout micelayout;
    private final FlowPanel initialSlot = new FlowPanel();
    private boolean initialized;

    /*
     * (non-Javadoc)
     * @see ch.unifr.pai.twice.layout.client.DynamicLayout#createPanel()
     */
    @Override
    protected Panel createPanel() {
        if (micelayout == null) {
            micelayout = new MiceLayout();
        }
        return micelayout;
    }

    /*
     * (non-Javadoc)
     * @see ch.unifr.pai.twice.layout.client.DynamicLayout#addWidget(java.lang.String, com.google.gwt.user.client.ui.Widget)
     */
    @Override
    protected void addWidget(String componentName, Widget component) {
        initialSlot.add(new MiceTabLabel(componentName, component));
        if (!initialized) {
            initialized = true;
        }
    }

    /*
     * (non-Javadoc)
     * @see ch.unifr.pai.twice.layout.client.DynamicLayout#show()
     */
    @Override
    public void show() {
        micelayout.getMainPanel().add(initialSlot);
        DynamicLayout.getPanel().add(micelayout);
    }

    /*
     * (non-Javadoc)
     * @see ch.unifr.pai.twice.layout.client.DynamicLayout#addModule(java.lang.String, ch.unifr.pai.twice.module.client.TWICEModule,
     * com.google.gwt.user.client.rpc.AsyncCallback)
     */
    @Override
    public <W extends Widget> void addModule(final String name, TWICEModule<W> module,
            final AsyncCallback<W> callback) {
        // TODO do instantiate on demand - not at registration time

        final SimpleLayoutPanel placeHolder = new SimpleLayoutPanel();
        addWidget(name, placeHolder);
        TWICEModuleController.instantiateModule(module, new AsyncCallback<Widget>() {

            @Override
            public void onFailure(Throwable caught) {
                Window.alert("Was not able to instantiate " + name);
            }

            @Override
            public void onSuccess(Widget result) {
                placeHolder.setWidget(result);
                callback.onSuccess((W) result);
                // TWICEModuleController.start(result);
            }
        });

    }

}