Java 类org.eclipse.xtext.ui.editor.embedded.IEditedResourceProvider 实例源码

/**
 * Embeds an xText editor for the given resource into the given <code>parent</code>.
 * 
 * @param file the file representing the resource
 * @param parent the parent UI component
 * @param injector the injector configured for the editor and the grammar of <code>file</code>
 * @param content a split of <code>file</code> consisting of the actual editable content in terms of prefix not to 
 *   be shown [0], content to be displayed [1] and postfix not to be shown[2]
 * @param requireWorkspaceResource whether the editor requires a workspace resource and shall complain at least in 
 *   the logs or whether it shall be silent
 * @return the embedded editor (or <b>null</b> if embedding failed)
 */
public static IEmbeddedEditor embedEditor(final java.net.URI file, Composite parent, final Injector injector, 
    String[] content, boolean requireWorkspaceResource) {
    IEditedResourceProvider resourceProvider = new IEditedResourceProvider() {
        public XtextResource createResource() {
            XtextResourceSet rs = injector.getInstance(XtextResourceSet.class);
            rs.setClasspathURIContext(getClass());

            IResourceFactory resourceFactory = injector.getInstance(IResourceFactory.class);
            URI uri = URI.createURI(file.toString());
            XtextResource resource = (XtextResource) resourceFactory.createResource(uri);
            rs.getResources().add(resource);
            EcoreUtil.resolveAll(resource);

            if (!resource.getErrors().isEmpty()) {
                StringBuilder tmp = new StringBuilder();
                for (Diagnostic d : resource.getErrors()) {
                    if (tmp.length() > 0) {
                        tmp.append(", ");
                    }
                    tmp.append(d.getMessage());
                }
                EASyLoggerFactory.INSTANCE.getLogger(EmbeddingHelper.class, Activator.PLUGIN_ID).error(
                    tmp.toString());
            }
            return resource;
        }
    };
    return embedEditor(parent, injector, resourceProvider, content, requireWorkspaceResource);
}

/**
 * Embeds an xText editor for the given resource into the given <code>parent</code>.
 * 
 * @param parent the parent UI component
 * @param injector the injector configured for the editor and the grammar of <code>file</code>
 * @param resourceProvider the resource to be displayed
 * @param content the actual editable content in terms of prefix not to be shown [0], content to be displayed [1] 
 *   and postfix not to be shown[2]
 * @param requireWorkspaceResource whether the editor requires a workspace resource and shall complain at least in 
 *   the logs or whether it shall be silent
 * @return the embedded editor (or <b>null</b> if embedding failed)
 */
private static IEmbeddedEditor embedEditor(Composite parent, Injector injector, 
    IEditedResourceProvider resourceProvider, String[] content, boolean requireWorkspaceResource) {
    // processIssuesBy
    EmbeddedEditorFactory factory = injector.getInstance(EmbeddedEditorFactory.class);
    EmbeddedEditor embeddedEditor = factory.newEditor(resourceProvider).showErrorAndWarningAnnotations()
        .withParent(parent);
    // solution by: http://stackoverflow.com/questions/15324481/xtext-dsl-embedded-editor-in-a-dialog
    EmbeddedEditorModelAccess partialEditorModelAccess = embeddedEditor.createPartialEditor(content[0], 
        content[1], content[2], false);
    XtextSourceViewer viewer = embeddedEditor.getViewer();
    StyledText text = viewer.getTextWidget();
    try {
        Font font = text.getFont();
        if (null != font) {
            // TODO preliminary, use editor configuration instead
            FontData[] fontData = font.getFontData();
            if (null != fontData && fontData.length > 0) {
                text.setFont(new Font(font.getDevice(), "Consolas", 
                    fontData[0].getHeight(), fontData[0].getStyle()));
            }
        }
    } catch (SWTError e) {
        // no font, ignore
        EASyLoggerFactory.INSTANCE.getLogger(EmbeddingHelper.class, Activator.PLUGIN_ID).error(e.getMessage());
    }
    return new EmbeddedXtextSourceEditor(embeddedEditor, viewer, partialEditorModelAccess, 
        requireWorkspaceResource);
}