Examples of org.eclipse.ui.forms.widgets.ExpandableComposite$ExpandableLayout

org.eclipse.ui.forms.widgets.ExpandableComposite
This composite is capable of expanding or collapsing a single client that is its direct child. The composite renders an expansion toggle affordance (according to the chosen style), and a title that also acts as a hyperlink (can be selected and is traversable). The client is layed out below the title when expanded, or hidden when collapsed.
The widget can be instantiated as-is, or subclassed to modify some aspects of it.
Since 3.1, left/right arrow keys can be used to control the expansion state. If several expandable composites are created in the same parent, up/down arrow keys can be used to traverse between them. Expandable text accepts mnemonics and mnemonic activation will toggle the expansion state.
While expandable composite recognize that different styles can be used to render the title bar, and even defines the constants for these styles (TITLE_BAR and SHORT_TITLE_BAR the actual painting is done in the subclasses. @see Section @since 3.0

        deleteCommonUri
            .setEnabled(commonUriText.getText().length() > 0);
      }
    });


    ExpandableComposite pushUriArea = new ExpandableComposite(main,
        ExpandableComposite.TREE_NODE
            | ExpandableComposite.CLIENT_INDENT);
    GridDataFactory.fillDefaults().grab(true, false).applyTo(pushUriArea);
    pushUriArea.setExpanded(!config.getPushURIs().isEmpty());
    pushUriArea.addExpansionListener(new ExpansionAdapter() {


      public void expansionStateChanged(ExpansionEvent e) {
        main.layout(true, true);
        main.getShell().pack();
      }
    });
    pushUriArea.setText(UIText.SimpleConfigurePushDialog_PushUrisLabel);
    final Composite pushUriDetails = new Composite(pushUriArea, SWT.NONE);
    pushUriArea.setClient(pushUriDetails);
    pushUriDetails.setLayout(new GridLayout(2, false));
    GridDataFactory.fillDefaults().grab(true, true).applyTo(pushUriDetails);
    uriViewer = new TableViewer(pushUriDetails, SWT.BORDER | SWT.MULTI);
    GridDataFactory.fillDefaults().grab(true, true)
        .minSize(SWT.DEFAULT, 30).applyTo(uriViewer.getTable());

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  }


  private void createAdvancedSection(final Composite composite) {
    if (commitId != null)
      return;
    ExpandableComposite advanced = new ExpandableComposite(composite,
        ExpandableComposite.TREE_NODE
            | ExpandableComposite.CLIENT_INDENT);


    advanced.setText(UIText.CreateTagDialog_advanced);
    advanced.setToolTipText(UIText.CreateTagDialog_advancedToolTip);
    advanced.setLayoutData(GridDataFactory.fillDefaults().grab(true, false)
        .create());


    Composite advancedComposite = new Composite(advanced, SWT.WRAP);
    advancedComposite.setLayout(GridLayoutFactory.swtDefaults().create());
    advancedComposite.setLayoutData(GridDataFactory.fillDefaults()
        .grab(true, true).create());


    Label advancedLabel = new Label(advancedComposite, SWT.WRAP);
    advancedLabel.setText(UIText.CreateTagDialog_advancedMessage);
    advancedLabel.setLayoutData(GridDataFactory.fillDefaults()
        .grab(true, false).create());


    commitCombo = new CommitCombo(advancedComposite, SWT.NORMAL);
    commitCombo.setLayoutData(GridDataFactory.fillDefaults()
        .grab(true, false).hint(300, SWT.DEFAULT).create());


    advanced.setClient(advancedComposite);
    advanced.addExpansionListener(new ExpansionAdapter() {
      public void expansionStateChanged(ExpansionEvent e) {
        // fill the Combo lazily to improve UI responsiveness
        if (((Boolean) e.data).booleanValue()
            && commitCombo.getItemCount() == 0) {
          final Collection<RevCommit> commits = new ArrayList<RevCommit>();

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  public void selectOption(Key key) {
    Control control = findControl(key);
    if (control != null) {
      if (!fExpandedComposites.isEmpty()) {
        ExpandableComposite expandable = getParentExpandableComposite(control);
        if (expandable != null) {
          for (int i = 0; i < fExpandedComposites.size(); i++) {
            ExpandableComposite curr = (ExpandableComposite) fExpandedComposites
                .get(i);
            curr.setExpanded(curr == expandable);
          }
          expandedStateChanged(expandable);
        }
      }
      control.setFocus();

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    }
  }


  protected ExpandableComposite createStyleSection(Composite parent,
      String label, int nColumns) {
    ExpandableComposite excomposite = new ExpandableComposite(parent,
        SWT.NONE, ExpandableComposite.TWISTIE
            | ExpandableComposite.CLIENT_INDENT);
    excomposite.setText(label);
    excomposite.setExpanded(false);
    excomposite.setFont(JFaceResources.getFontRegistry().getBold(
        JFaceResources.DIALOG_FONT));
    excomposite.setLayoutData(new GridData(GridData.FILL, GridData.FILL,
        true, false, nColumns, 1));
    excomposite.addExpansionListener(new ExpansionAdapter() {
      public void expansionStateChanged(ExpansionEvent e) {
        expandedStateChanged((ExpandableComposite) e.getSource());
      }
    });
    fExpandedComposites.add(excomposite);

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    }
  }


  protected void restoreSectionExpansionStates(IDialogSettings settings) {
    for (int i = 0; i < fExpandedComposites.size(); i++) {
      ExpandableComposite excomposite = (ExpandableComposite) fExpandedComposites
          .get(i);
      if (settings == null) {
        excomposite.setExpanded(i == 0); // only expand the first node
        // by default
      } else {
        excomposite.setExpanded(settings.getBoolean(SETTINGS_EXPANDED
            + String.valueOf(i)));
      }
    }
  }

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    }
  }


  protected void storeSectionExpansionStates(IDialogSettings settings) {
    for (int i = 0; i < fExpandedComposites.size(); i++) {
      ExpandableComposite curr = (ExpandableComposite) fExpandedComposites
          .get(i);
      settings.put(SETTINGS_EXPANDED + String.valueOf(i),
          curr.isExpanded());
    }
  }

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        ToolItem btnCreateFilter;
        
        GridLayout gridLayout;
        ComboViewer labelViewer;
        
        ExpandableComposite expandableComposite;
        Composite composite_1;
        FormText receiversText;
        parent.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
        parent.setLayout(new GridLayout());
        
        composite = this.toolkit.createComposite(parent, SWT.NONE);
        composite.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
        composite.setBackgroundMode(SWT.INHERIT_FORCE);
        gridLayout = new GridLayout();
        gridLayout.numColumns = 5;
        composite.setLayout(gridLayout);
        this.toolkit.paintBordersFor(composite);
        
        toolBar = new ToolBar(composite, SWT.FLAT);
        toolBar.setBackgroundMode(SWT.INHERIT_FORCE);
        gridData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 3, 1);
        gridData.horizontalIndent = 5;
        toolBar.setLayoutData(gridData);
        this.toolkit.adapt(toolBar, true, true);
        
        btnReply = new ToolItem(toolBar, SWT.PUSH);
        btnReply.setImage(SWTResourceManager.getImage(SimpleMessageEditor.class, "/icons/reply_small.png"));
        btnReply.setToolTipText(MessageEditorMessages.getString("MessageEditor.btnReply.toolTipText")); //$NON-NLS-1$
        
        btnReplyAll = new ToolItem(toolBar, SWT.PUSH);
        btnReplyAll.setImage(SWTResourceManager.getImage(SimpleMessageEditor.class, "/icons/reply_all_small.png"));
        btnReplyAll.setToolTipText(MessageEditorMessages.getString("MessageEditor.btnReplyAll.toolTipText")); //$NON-NLS-1$
        
        btnForward = new ToolItem(toolBar, SWT.PUSH);
        btnForward.setImage(SWTResourceManager.getImage(SimpleMessageEditor.class, "/icons/forward_small.png"));
        btnForward.setToolTipText(MessageEditorMessages.getString("MessageEditor.btnForward.toolTipText")); //$NON-NLS-1$
        
        new ToolItem(toolBar, SWT.SEPARATOR);
        
        btnDelete = new ToolItem(toolBar, SWT.PUSH);
        btnDelete.setImage(SWTResourceManager.getImage(SimpleMessageEditor.class, "/icons/delete_small.png"));
        btnDelete.setToolTipText(MessageEditorMessages.getString("MessageEditor.btnDelete.toolTipText")); //$NON-NLS-1$
        
        btnSpam = new ToolItem(toolBar, SWT.CHECK);
        btnSpam.setHotImage(SWTResourceManager.getImage(SimpleMessageEditor.class, "/icons/virus-detected.png"));
        btnSpam.setImage(SWTResourceManager.getImage(SimpleMessageEditor.class, "/icons/virus-detected-2.png"));
        btnSpam.setToolTipText(MessageEditorMessages.getString("MessageEditor.btnSpam.toolTipText")); //$NON-NLS-1$
        
        new ToolItem(toolBar, SWT.SEPARATOR);
        
        btnCreateFilter = new ToolItem(toolBar, SWT.PUSH);
        btnCreateFilter.setImage(SWTResourceManager.getImage(SimpleMessageEditor.class, "/icons/kview.png"));
        btnCreateFilter.setToolTipText(MessageEditorMessages.getString("MessageEditor.btnCreateFilter.toolTipText")); //$NON-NLS-1$
        
        this.toolkit.createLabel(composite, MessageEditorMessages.getString("MessageEditor.label.text"), SWT.NONE); //$NON-NLS-1$
        
        labelViewer = new ComboViewer(composite, SWT.READ_ONLY);
        labelViewer.setLabelProvider(new ListLabelProvider());
        labelViewer.setContentProvider(new ContentProvider_1());
        labelViewer.setInput(new Object());
        this.combo = labelViewer.getCombo();
        this.toolkit.adapt(this.combo, true, true);
        this.combo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
        new Label(composite, SWT.NONE);
        expandableComposite = this.toolkit.createExpandableComposite(composite, ExpandableComposite.COMPACT
                                                                                | ExpandableComposite.TWISTIE
                                                                                | ExpandableComposite.NO_TITLE
                                                                                | ExpandableComposite.FOCUS_TITLE);
        gridData = new GridData(SWT.FILL, SWT.CENTER, true, false, 4, 1);
        gridData.widthHint = 295;
        expandableComposite.setLayoutData(gridData);
        expandableComposite.setText("Empf�nger");
        this.toolkit.paintBordersFor(expandableComposite);
        composite_1 = this.toolkit.createComposite(expandableComposite, SWT.NONE);
        this.toolkit.paintBordersFor(composite_1);
        expandableComposite.setClient(composite_1);
        receiversText = this.toolkit.createFormText(composite_1, false);
        
        this.lnkTo = this.toolkit.createImageHyperlink(receiversText, SWT.NONE);
        this.lnkTo.setBounds(0, 0, 130, 24);
        this.lnkTo.setImage(SWTResourceManager.getImage(MessageEditor.class, "/icons/abcard-item.png"));

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    ih.setText("Image link with no image");
    ih = toolkit.createImageHyperlink(form.getBody(), SWT.NULL);
    ih.setImage(ExamplesPlugin.getDefault().getImageRegistry().get(ExamplesPlugin.IMG_SAMPLE));
    ih.setText("Link with image and text");
    
    ExpandableComposite ec = toolkit.createExpandableComposite(form.getBody(), ExpandableComposite.TREE_NODE|ExpandableComposite.CLIENT_INDENT);
    ImageHyperlink eci = toolkit.createImageHyperlink(ec, SWT.NULL);
    eci.setImage(ExamplesPlugin.getDefault().getImageRegistry().get(ExamplesPlugin.IMG_SAMPLE));
    ec.setTextClient(eci);
    ec.setText("Expandable Composite title");
    String ctext = "We will now create a somewhat long text so that "+
    "we can use it as content for the expandable composite. "+
    "Expandable composite is used to hide or show the text using the "+
    "toggle control";
    Label client = toolkit.createLabel(ec, ctext, SWT.WRAP);
    ec.setClient(client);
    td = new TableWrapData();
    td.colspan = 2;
    ec.setLayoutData(td);
    ec.addExpansionListener(new ExpansionAdapter() {
      public void expansionStateChanged(ExpansionEvent e) {
        form.reflow(true);
      }
    });
    Section section = toolkit.createSection(form.getBody(), Section.DESCRIPTION|Section.TWISTIE|Section.EXPANDED);

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   * @return a new ExpandibleComposite widget
   * @since 3.6
   */
  public static ExpandableComposite createExpandibleComposite(Composite parent, int style, String label, int hspan,
      int fill) {
    ExpandableComposite ex = new ExpandableComposite(parent, SWT.NONE, style);
    ex.setText(label);
    ex.setFont(JFaceResources.getFontRegistry().getBold(JFaceResources.DIALOG_FONT));
    GridData gd = new GridData(fill);
    gd.horizontalSpan = hspan;
    ex.setLayoutData(gd);
    return ex;
  }

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    createButtons(PROPERTY, sectionComposite, BeansSchemaConstants.ELEM_PROPERTY, propertiesTable);
  }


  private Composite createSection(final Composite container, String title, boolean expanded) {
    final ExpandableComposite section = new FormToolkit(getShell().getDisplay()).createExpandableComposite(
        container, ExpandableComposite.TWISTIE | ExpandableComposite.TITLE_BAR | ExpandableComposite.COMPACT);
    section.setText(title);
    GridData sectionData = new GridData(SWT.FILL, SWT.TOP, true, false);
    section.clientVerticalSpacing = 0;
    section.setLayoutData(sectionData);
    section.setBackground(container.getBackground());


    Composite sectionComposite = new Composite(section, SWT.NONE);
    section.setClient(sectionComposite);


    GridLayout layout = new GridLayout(2, false);
    layout.marginWidth = 0;
    sectionComposite.setLayout(layout);


    section.addExpansionListener(new ExpansionAdapter() {
      @Override
      public void expansionStateChanged(ExpansionEvent e) {
        getShell().pack();
      }
    });


    section.setExpanded(expanded);


    return sectionComposite;
  }

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