/* 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 org.activiti.editor.ui;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Model;
import org.activiti.explorer.ExplorerApp;
import org.activiti.explorer.I18nManager;
import org.activiti.explorer.Messages;
import org.activiti.explorer.ui.mainlayout.ExplorerLayout;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.vaadin.terminal.StreamResource.StreamSource;
import com.vaadin.ui.ComponentContainer;
import com.vaadin.ui.Embedded;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.Panel;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.themes.Reindeer;
/**
* @author Tijs Rademakers
*/
public class EditorProcessDefinitionInfoComponent extends VerticalLayout {
protected static final Logger LOGGER = LoggerFactory.getLogger(EditorProcessDefinitionInfoComponent.class);
private static final long serialVersionUID = 1L;
// Services
protected transient RepositoryService repositoryService;
protected I18nManager i18nManager;
// Members
protected Model modelData;
// UI
protected HorizontalLayout timeDetails;
protected VerticalLayout processImageContainer;
public EditorProcessDefinitionInfoComponent(Model model) {
super();
this.repositoryService = ProcessEngines.getDefaultProcessEngine().getRepositoryService();
this.i18nManager = ExplorerApp.get().getI18nManager();
this.modelData = model;
addStyleName(ExplorerLayout.STYLE_DETAIL_BLOCK);
initImage();
}
protected void initImage() {
processImageContainer = new VerticalLayout();
Label processTitle = new Label(i18nManager.getMessage(Messages.PROCESS_HEADER_DIAGRAM));
processTitle.addStyleName(ExplorerLayout.STYLE_H3);
processImageContainer.addComponent(processTitle);
StreamSource streamSource = null;
final byte[] editorSourceExtra = repositoryService.getModelEditorSourceExtra(modelData.getId());
if (editorSourceExtra != null) {
streamSource = new StreamSource() {
private static final long serialVersionUID = 1L;
public InputStream getStream() {
InputStream inStream = null;
try {
inStream = new ByteArrayInputStream(editorSourceExtra);
} catch (Exception e) {
LOGGER.warn("Error reading PNG in StreamSource", e);
}
return inStream;
}
};
}
if(streamSource != null) {
Embedded embedded = new Embedded(null, new ImageStreamSource(streamSource, ExplorerApp.get()));
embedded.setType(Embedded.TYPE_IMAGE);
embedded.setSizeUndefined();
Panel imagePanel = new Panel(); // using panel for scrollbars
imagePanel.addStyleName(Reindeer.PANEL_LIGHT);
imagePanel.setWidth(100, UNITS_PERCENTAGE);
imagePanel.setHeight(700, UNITS_PIXELS);
HorizontalLayout panelLayout = new HorizontalLayout();
panelLayout.setSizeUndefined();
imagePanel.setContent(panelLayout);
imagePanel.addComponent(embedded);
processImageContainer.addComponent(imagePanel);
} else {
Label noImageAvailable = new Label(i18nManager.getMessage(Messages.PROCESS_NO_DIAGRAM));
processImageContainer.addComponent(noImageAvailable);
}
addComponent(processImageContainer);
}
protected void addEmptySpace(ComponentContainer container) {
Label emptySpace = new Label(" ", Label.CONTENT_XHTML);
emptySpace.setSizeUndefined();
container.addComponent(emptySpace);
}
}