Examples of org.eclipse.jface.text.source.SourceViewerConfiguration

org.eclipse.jface.text.source.SourceViewerConfiguration
This class bundles the configuration space of a source viewer. Instances of this class are passed to the configure method of ISourceViewer.
Each method in this class get as argument the source viewer for which it should provide a particular configuration setting such as a presentation reconciler. Based on its specific knowledge about the returned object, the configuration might share such objects or compute them according to some rules.

Clients should subclass and override just those methods which must be specific to their needs.
@see org.eclipse.jface.text.source.ISourceViewer

     * @param parent the parent composite of the viewer
     * @return a configured <code>SourceViewer</code>
     */
    protected SourceViewer createViewer(Composite parent) {
      SourceViewer viewer= new SourceViewer(parent, null, null, false, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
      SourceViewerConfiguration configuration= new SourceViewerConfiguration() {
        public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {


          ContentAssistant assistant= new ContentAssistant();
          assistant.enableAutoActivation(true);
          assistant.enableAutoInsert(true);

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    int styles= SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION;
    fSourceViewer= createSourceViewer(parent, fVerticalRuler, styles);


    if (fConfiguration == null)
      fConfiguration= new SourceViewerConfiguration();
    fSourceViewer.configure(fConfiguration);


    if (fSourceViewer instanceof ISourceViewerExtension4)
      fKeyBindingSupportForContentAssistant= new KeyBindingSupportForAssistant(((ISourceViewerExtension4)fSourceViewer));

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   * <p>Subclasses may extend or override this method.</p>
   *
   * @since 3.3
   */
  protected void installTabsToSpacesConverter() {
    SourceViewerConfiguration config= getSourceViewerConfiguration();
    if (config != null && fSourceViewer instanceof ITextViewerExtension7) {
      int tabWidth= config.getTabWidth(fSourceViewer);
      TabsToSpacesConverter tabToSpacesConverter= new TabsToSpacesConverter();
      tabToSpacesConverter.setLineTracker(new DefaultLineTracker());
      tabToSpacesConverter.setNumberOfSpacesPerTab(tabWidth);
      ((ITextViewerExtension7)fSourceViewer).setTabsToSpacesConverter(tabToSpacesConverter);
      updateIndentPrefixes();

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   * the values provided by the source viewer configuration.
   *
   * @since 3.3
   */
  protected final void updateIndentPrefixes() {
    SourceViewerConfiguration configuration= getSourceViewerConfiguration();
    String[] types= configuration.getConfiguredContentTypes(fSourceViewer);
    for (int i= 0; i < types.length; i++) {
      String[] prefixes= configuration.getIndentPrefixes(fSourceViewer, types[i]);
      if (prefixes != null && prefixes.length > 0)
        fSourceViewer.setIndentPrefixes(prefixes, types[i]);
    }
  }

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            public void resetForceTabs() {


            }


            public void resetIndentPrefixes() {
                SourceViewerConfiguration configuration = getEditConfiguration();
                String[] types = configuration.getConfiguredContentTypes(sourceViewer);
                for (int i = 0; i < types.length; i++) {
                    String[] prefixes = configuration.getIndentPrefixes(sourceViewer, types[i]);
                    if (prefixes != null && prefixes.length > 0)
                        sourceViewer.setIndentPrefixes(prefixes, types[i]);
                }
            }

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        IQuickAssistProcessor quickAssistProcessor = createConsoleQuickAssistProcessor(quickAssist);


        // Correction assist works on all
        quickAssist.setQuickAssistProcessor(quickAssistProcessor);


        SourceViewerConfiguration cfg = new PydevScriptConsoleSourceViewerConfiguration(createHover(), contentAssist,
                quickAssist);
        return cfg;
    }

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   * @return a configured <code>SourceViewer</code>
   */
  protected SourceViewer createViewer(Composite parent) {
    SourceViewer viewer = new SourceViewer(parent, null, null, false,
        SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    SourceViewerConfiguration configuration = new SourceViewerConfiguration() {
      public IContentAssistant getContentAssistant(
          ISourceViewer sourceViewer) {


        ContentAssistant assistant = new ContentAssistant();
        assistant.enableAutoActivation(true);

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    @Override
    protected SourceViewer createViewer(Composite parent) {
      SourceViewer viewer = new SourceViewer(parent, null, null, false,
          SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
      SourceViewerConfiguration configuration = new SourceViewerConfiguration() {
        public IContentAssistant getContentAssistant(
            ISourceViewer sourceViewer) {


          ContentAssistant assistant = new ContentAssistant();
          assistant.enableAutoActivation(true);

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      composite.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
    }


    // Source viewer
    fViewer= new SourceViewer(composite, null, textStyle);
    fViewer.configure(new SourceViewerConfiguration());
    fViewer.setEditable(false);


    fText= fViewer.getTextWidget();
    gd= new GridData(GridData.BEGINNING | GridData.FILL_BOTH);
    fText.setLayoutData(gd);

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   */
  protected void configureTextViewer(TextViewer textViewer) {
    // to get undo for all text files
    // bugzilla 131895, 33665
    if (textViewer instanceof MergeSourceViewer) {
      SourceViewerConfiguration configuration = new SourceViewerConfiguration();
      ((MergeSourceViewer) textViewer).configure(configuration);
    }
  }

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