/*
* Copyright (c) 2011, H.Westphal
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the jo-widgets.org nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
package org.jowidgets.addons.map.swing;
import java.awt.Canvas;
import java.awt.Container;
import java.util.Collections;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import org.jowidgets.addons.map.common.IAvailableCallback;
import org.jowidgets.addons.map.common.IMap;
import org.jowidgets.addons.map.common.IMapContext;
import org.jowidgets.addons.map.common.IViewChangeListener;
import org.jowidgets.addons.map.common.impl.GoogleEarth;
import org.jowidgets.addons.map.common.widget.IMapWidget;
import org.jowidgets.addons.map.common.widget.IMapWidgetBlueprint;
import org.jowidgets.addons.map.swing.AbstractSwtThread.IWidgetCallback;
import org.jowidgets.api.threads.IUiThreadAccess;
import org.jowidgets.api.toolkit.Toolkit;
import org.jowidgets.api.widgets.IComposite;
import org.jowidgets.common.widgets.layout.MigLayoutDescriptor;
import org.jowidgets.tools.widgets.invoker.ColorSettingsInvoker;
import org.jowidgets.tools.widgets.invoker.VisibiliySettingsInvoker;
import org.jowidgets.tools.widgets.wrapper.ControlWrapper;
final class SwingGoogleEarthWidget extends ControlWrapper implements IMapWidget {
private final String apiKey;
private final Canvas canvas;
private final ConcurrentMap<IViewChangeListener, IViewChangeListener> viewChangeListeners = new ConcurrentHashMap<IViewChangeListener, IViewChangeListener>();
private volatile String language;
private volatile IMap map;
SwingGoogleEarthWidget(final IMapWidgetBlueprint descriptor, final String apiKey) {
super(Toolkit.getWidgetFactory().create(Toolkit.getBluePrintFactory().composite()));
this.apiKey = apiKey;
((IComposite) getWidget()).setLayout(new MigLayoutDescriptor("0[grow]0", "0[grow]0"));
canvas = new Canvas();
final Container container = (Container) getWidget().getUiReference();
container.add(canvas, "grow, wmin 0, hmin 0");
VisibiliySettingsInvoker.setVisibility(descriptor, this);
ColorSettingsInvoker.setColors(descriptor, this);
}
@Override
public void setLanguage(final String language) {
if (map == null) {
this.language = language;
}
else {
map.setLanguage(language);
}
}
@Override
public void initialize(final IAvailableCallback callback) {
final IUiThreadAccess uiThreadAccess = Toolkit.getUiThreadAccess();
new AbstractSwtThread<IMap>(canvas, new IWidgetCallback<IMap>() {
@Override
public void onWidgetCreated(final IMap widget) {
synchronized (SwingGoogleEarthWidget.this) {
map = widget;
}
final IAvailableCallback callbackProxy;
if (callback == null) {
callbackProxy = null;
}
else {
callbackProxy = new IAvailableCallback() {
@Override
public void onAvailable(final IMapContext mapContext) {
uiThreadAccess.invokeLater(new Runnable() {
@Override
public void run() {
callback.onAvailable(new MapContextAdapter(((Composite) widget).getDisplay(), mapContext));
}
});
}
};
}
widget.initialize(callbackProxy);
}
}) {
@Override
protected IMap createWidget(final Shell shell) {
final IMap widget = new GoogleEarth(shell, apiKey);
if (language != null) {
widget.setLanguage(language);
}
for (final IViewChangeListener viewChangeListener : viewChangeListeners.values()) {
widget.addViewChangeListener(viewChangeListener);
}
return widget;
}
}.start();
}
@Override
public synchronized boolean isInitialized() {
if (map == null) {
return false;
}
return map.isInitialized();
}
@Override
public synchronized boolean isAvailable() {
if (map == null) {
return false;
}
return map.isAvailable();
}
@Override
public void addViewChangeListener(final IViewChangeListener listener) {
if (!viewChangeListeners.containsKey(listener)) {
final IViewChangeListener swtListener = new IViewChangeListener() {
@Override
public void onViewChange(final double north, final double south, final double east, final double west) {
Toolkit.getUiThreadAccess().invokeLater(new Runnable() {
@Override
public void run() {
listener.onViewChange(north, south, east, west);
}
});
}
};
viewChangeListeners.putIfAbsent(listener, swtListener);
}
synchronized (this) {
if (map != null) {
map.addViewChangeListener(viewChangeListeners.get(listener));
}
}
}
@Override
public boolean removeViewChangeListener(final IViewChangeListener listener) {
final IViewChangeListener swtListener = viewChangeListeners.remove(listener);
if (swtListener == null) {
return false;
}
synchronized (this) {
if (map == null) {
return true;
}
return map.removeViewChangeListener(swtListener);
}
}
@Override
public synchronized Set<Class<?>> getSupportedDesignationClasses() {
if (map == null) {
return Collections.emptySet();
}
return map.getSupportedDesignationClasses();
}
}