Example usage for org.eclipse.jface.viewers StructuredViewer reveal

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers StructuredViewer reveal.

Prototype

public abstract void reveal(Object element);

Source Link

Document

Ensures that the given element is visible, scrolling the viewer if necessary.

Usage

From source file:net.sf.eclipsensis.viewer.StructuredViewerUpDownMover.java

License:Open Source License

@Override
@SuppressWarnings("unchecked")
protected final void updateElements(List<T> elements, List<T> move, boolean isDown) {
    StructuredViewer viewer = getViewer();
    updateStructuredViewerInput((S) viewer.getInput(), elements, move, isDown);
    refreshViewer(viewer, elements, move, isDown);
    if (!Common.isEmptyCollection(move)) {
        viewer.setSelection(new StructuredSelection(move));
        viewer.reveal(move.get(isDown ? move.size() - 1 : 0));
    }//  www  .j a  v a  2 s  .  co m
}

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From source file:org.eclipse.debug.internal.ui.views.variables.VariablesView.java

License:Open Source License

/**
 * Make sure the currently selected item in the tree is visible.
 *///from   w w w  .  j a  v  a2 s  .c o  m
protected void revealTreeSelection() {
    StructuredViewer viewer = (StructuredViewer) getViewer();
    if (viewer != null) {
        ISelection selection = viewer.getSelection();
        if (selection instanceof IStructuredSelection) {
            Object selected = ((IStructuredSelection) selection).getFirstElement();
            if (selected != null) {
                viewer.reveal(selected);
            }
        }
    }
}

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From source file:org.eclipse.net4j.util.ui.views.MultiViewersView.java

License:Open Source License

public void revealElement(final Object element) {
    try {/*from w  w  w  .  j  av a2 s  . c o m*/
        final StructuredViewer viewer = getCurrentViewer();
        if (viewer != null) {
            getDisplay().asyncExec(new Runnable() {
                public void run() {
                    try {
                        viewer.reveal(element);
                    } catch (RuntimeException ignore) {
                    }
                }
            });
        }
    } catch (RuntimeException ignore) {
    }
}

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From source file:org.ejs.gui.common.SwtDialogUtils.java

License:Open Source License

/**
 * Sometimes a viewer does not get populated until
 * some time after its input is set, making {@link StructuredViewer#reveal(Object)}
 * useless.  This routine reveals a selection only after
 * the viewer is actually populated.//from   w  ww .  j a v a  2s  .co m
 */
public static void revealOncePopulated(final Timer timer, int initialDelayMs, final StructuredViewer viewer,
        final Object selection) {
    // workaround: GTK does not realize the elements for a while
    final Control control = viewer.getControl();
    final TimerTask task = new TimerTask() {
        TimerTask xx = this;

        /* (non-Javadoc)
         * @see java.util.TimerTask#run()
         */
        @Override
        public void run() {
            if (control.isDisposed()) {
                xx.cancel();
                return;
            }

            control.getDisplay().asyncExec(new Runnable() {
                public void run() {
                    boolean cancel = false;
                    if (control.isDisposed()) {
                        cancel = true;
                    } else {
                        boolean populated = false;
                        if (control instanceof Tree && ((Tree) control).getItemCount() > 0
                                && ((Tree) control).getItem(0).getBounds().height > 0)
                            populated = true;
                        else if (control instanceof Table && ((Table) control).getItemCount() > 0
                                && ((Table) control).getItem(0).getBounds().height > 0)
                            populated = true;

                        if (populated) {
                            viewer.reveal(selection);
                            cancel = true;
                        }
                    }

                    if (cancel) {
                        xx.cancel();
                    }
                }
            });
        }
    };
    timer.scheduleAtFixedRate(task, initialDelayMs, 500);
}

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From source file:org.fusesource.ide.foundation.ui.util.Viewers.java

License:Open Source License

/**
 * Reveals the given element in the view t
 *///from   w ww .j av a  2s .c o  m
public static void reveal(Viewer viewer, Object element) {
    if (viewer instanceof StructuredViewer) {
        StructuredViewer sv = (StructuredViewer) viewer;
        sv.reveal(element);
    }
}

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From source file:v9t9.gui.client.swt.shells.DemoSelector.java

License:Open Source License

/**
 * @param viewer//from w w w .j  av a 2  s.co m
 * @param control
 * @param realModules
 */
protected void addIterativeSearch(final StructuredViewer viewer, Control control) {
    control.addKeyListener(new KeyAdapter() {
        StringBuilder search = new StringBuilder();
        int index = 0;
        IDemo[] demos;

        @Override
        public void keyPressed(KeyEvent e) {
            int direction = 1;
            if (demos == null) {
                demos = demoManager.getDemos();
            }
            if (e.keyCode == '\b') {
                search.setLength(0);
                index = 0;
                e.doit = e.keyCode != '\b';
                demos = demoManager.getDemos();
            } else if (e.keyCode == SWT.ARROW_DOWN) {
                direction = 1;
                e.doit = false;
            } else if (e.keyCode == SWT.ARROW_UP) {
                direction = -1;
                e.doit = false;
            } else if (e.character >= 32 && e.character < 127) {
                search.append(e.character);
                e.doit = false;
            } else {
                return;
            }

            int end = (index + demos.length - 1) % demos.length;
            String searchString = search.toString().toLowerCase();
            if (searchString.length() > 0) {
                for (int i = index; i != end; i = (i + 1) % demos.length) {
                    IDemo m = demos[i];
                    if (m.getName().toLowerCase().contains(searchString)) {
                        viewer.setSelection(new StructuredSelection(m), true);
                        viewer.reveal(m);
                        index = i;
                        break;
                    }
                }
            } else {
                int count = demos.length;
                if (getDisplay().getFocusControl() != filterText) {
                    // not yet in tree
                    index += direction;
                }
                do {
                    index = (index + demos.length) % demos.length;
                    IDemo m = demos[index];
                    viewer.setSelection(new StructuredSelection(m), true);
                    viewer.reveal(m);
                    if (viewer.testFindItem(m) != null) // TODO: cleaner way to see what's not filtered
                        break;
                    index += direction;
                } while (count-- > 0);
            }
        }
    });
}

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