Examples with StreamResource com.vaadin.terminal.StreamResource used on opensource projects

Example 1 with StreamResource

use of com.vaadin.terminal.StreamResource in project Activiti by Activiti.

the class TaskEventsPanel method addTaskEventPicture.

protected void addTaskEventPicture(final org.activiti.engine.task.Event taskEvent, GridLayout eventGrid) {
    final Picture userPicture = identityService.getUserPicture(taskEvent.getUserId());
    Embedded authorPicture = null;
    if (userPicture != null) {
        StreamResource imageresource = new StreamResource(new StreamSource() {

            private static final long serialVersionUID = 1L;

            public InputStream getStream() {
                return userPicture.getInputStream();
            }
        }, "event_" + taskEvent.getUserId() + "." + Constants.MIMETYPE_EXTENSION_MAPPING.get(userPicture.getMimeType()), ExplorerApp.get());
        authorPicture = new Embedded(null, imageresource);
    } else {
        authorPicture = new Embedded(null, Images.USER_50);
    }
    authorPicture.setType(Embedded.TYPE_IMAGE);
    authorPicture.setHeight("48px");
    authorPicture.setWidth("48px");
    authorPicture.addStyleName(ExplorerLayout.STYLE_TASK_EVENT_PICTURE);
    eventGrid.addComponent(authorPicture);
}

Example 2 with StreamResource

use of com.vaadin.terminal.StreamResource in project Activiti by Activiti.

the class UserDetailsComponent method addUserPicture.

protected void addUserPicture() {
    // default icon
    Resource pictureResource = Images.USER_32;
    if (user != null) {
        final Picture userPicture = identityService.getUserPicture(user.getId());
        if (userPicture != null) {
            pictureResource = new StreamResource(new StreamSource() {

                public InputStream getStream() {
                    return userPicture.getInputStream();
                }
            }, user.getId(), ExplorerApp.get());
        }
    }
    Embedded picture = new Embedded(null, pictureResource);
    picture.setType(Embedded.TYPE_IMAGE);
    picture.addStyleName(ExplorerLayout.STYLE_TASK_EVENT_PICTURE);
    if (user != null) {
        // Only set fixed height and width when user has image, otherwise icon's dimensions will be used
        picture.setHeight("32px");
        picture.setWidth("32px");
    }
    addComponent(picture);
    // Add profile popup listener
    if (user != null) {
        picture.addStyleName(ExplorerLayout.STYLE_CLICKABLE);
        picture.addListener(new com.vaadin.event.MouseEvents.ClickListener() {

            public void click(ClickEvent event) {
                viewManager.showProfilePopup(user.getId());
            }
        });
    }
}

Example 3 with StreamResource

use of com.vaadin.terminal.StreamResource in project Activiti by Activiti.

the class ProcessDefinitionImageStreamResourceBuilder method buildStreamResource.

public StreamResource buildStreamResource(ProcessInstance processInstance, RepositoryService repositoryService, RuntimeService runtimeService, ProcessDiagramGenerator diagramGenerator, ProcessEngineConfiguration processEngineConfig) {
    StreamResource imageResource = null;
    ProcessDefinitionEntity processDefinition = (ProcessDefinitionEntity) ((RepositoryServiceImpl) repositoryService).getDeployedProcessDefinition(processInstance.getProcessDefinitionId());
    if (processDefinition != null && processDefinition.isGraphicalNotationDefined()) {
        try {
            BpmnModel bpmnModel = repositoryService.getBpmnModel(processInstance.getProcessDefinitionId());
            InputStream definitionImageStream = diagramGenerator.generateDiagram(bpmnModel, "png", runtimeService.getActiveActivityIds(processInstance.getId()), Collections.<String>emptyList(), processEngineConfig.getActivityFontName(), processEngineConfig.getLabelFontName(), processEngineConfig.getAnnotationFontName(), processEngineConfig.getClassLoader(), 1.0);
            if (definitionImageStream != null) {
                StreamSource streamSource = new InputStreamStreamSource(definitionImageStream);
                // Create image name
                String imageExtension = extractImageExtension(processDefinition.getDiagramResourceName());
                String fileName = processInstance.getId() + UUID.randomUUID() + "." + imageExtension;
                imageResource = new StreamResource(streamSource, fileName, ExplorerApp.get());
            }
        } catch (Throwable t) {
            // Image can't be generated, ignore this
            LOGGER.warn("Process image cannot be generated due to exception: {} - {}", t.getClass().getName(), t.getMessage());
        }
    }
    return imageResource;
}

Example 4 with StreamResource

use of com.vaadin.terminal.StreamResource in project Activiti by Activiti.

the class ProcessDefinitionImageStreamResourceBuilder method buildStreamResource.

public StreamResource buildStreamResource(String processInstanceId, String processDefinitionId, RepositoryService repositoryService, RuntimeService runtimeService, ProcessDiagramGenerator diagramGenerator, ProcessEngineConfiguration processEngineConfig) {
    StreamResource imageResource = null;
    ProcessDefinitionEntity processDefinition = (ProcessDefinitionEntity) ((RepositoryServiceImpl) repositoryService).getDeployedProcessDefinition(processDefinitionId);
    if (processDefinition != null && processDefinition.isGraphicalNotationDefined()) {
        BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinitionId);
        InputStream definitionImageStream = diagramGenerator.generateDiagram(bpmnModel, "png", runtimeService.getActiveActivityIds(processInstanceId), Collections.<String>emptyList(), processEngineConfig.getActivityFontName(), processEngineConfig.getLabelFontName(), processEngineConfig.getAnnotationFontName(), processEngineConfig.getClassLoader(), 1.0);
        StreamSource streamSource = new InputStreamStreamSource(definitionImageStream);
        // Create image name
        String imageExtension = extractImageExtension(processDefinition.getDiagramResourceName());
        String fileName = processInstanceId + UUID.randomUUID() + "." + imageExtension;
        imageResource = new StreamResource(streamSource, fileName, ExplorerApp.get());
    }
    return imageResource;
}

Example 5 with StreamResource

use of com.vaadin.terminal.StreamResource in project Activiti by Activiti.

the class SimpleTableEditor method showDiagram.

protected void showDiagram() {
    StreamResource.StreamSource streamSource = new StreamSource() {

        private static final long serialVersionUID = 6993112534181068935L;

        public InputStream getStream() {
            WorkflowDefinitionConversion workflowDefinitionConversion = ExplorerApp.get().getWorkflowDefinitionConversionFactory().createWorkflowDefinitionConversion(createWorkflow());
            final ProcessEngineImpl defaultProcessEngine = (ProcessEngineImpl) ProcessEngines.getDefaultProcessEngine();
            final ProcessEngineConfiguration processEngineConfiguration = defaultProcessEngine.getProcessEngineConfiguration();
            final ProcessDiagramGenerator diagramGenerator = processEngineConfiguration.getProcessDiagramGenerator();
            return diagramGenerator.generateDiagram(workflowDefinitionConversion.getBpmnModel(), "png", processEngineConfiguration.getActivityFontName(), processEngineConfiguration.getLabelFontName(), processEngineConfiguration.getAnnotationFontName(), processEngineConfiguration.getClassLoader());
        }
    };
    // resource must have unique id (or cache-crap can happen)!
    StreamResource imageresource = new StreamResource(streamSource, UUID.randomUUID() + ".png", ExplorerApp.get());
    Embedded diagram = new Embedded("", imageresource);
    diagram.setType(Embedded.TYPE_IMAGE);
    diagram.setSizeUndefined();
    // using panel for scrollbars
    imagePanel = new Panel();
    imagePanel.setScrollable(true);
    imagePanel.addStyleName(Reindeer.PANEL_LIGHT);
    imagePanel.setWidth(100, UNITS_PERCENTAGE);
    imagePanel.setHeight("100%");
    mainLayout.addComponent(imagePanel);
    HorizontalLayout panelLayout = new HorizontalLayout();
    panelLayout.setSizeUndefined();
    imagePanel.setContent(panelLayout);
    imagePanel.addComponent(diagram);
}