List of usage examples for org.eclipse.jface.resource ImageDescriptor createResource
@Override
public Object createResource(Device device) throws DeviceResourceException
From source file:com.diffplug.common.swt.jface.ImageDescriptors.java
License:Apache License
/** * {@link ImageDescriptor} allows an {@link Image} to be shared in a pool using reference counting. In order to not screw-up the reference * counting, you need to be pretty careful with how you use them. * <p>/* w ww . j av a2s . c o m*/ * This creates a {@link com.diffplug.common.base.Box.Nullable Box.Nullable<ImageDescriptor>} which sets and gets images in a way that will keep the reference counting happy. * <p> * <b>NO ONE MUST SET THE IMAGE EXCEPT THIS SETTER.</b> * * @param lifecycle Any outstanding images will be destroyed with the lifecycle of this Widget. * @param imageGetter Function which returns the image currently on the Widget (used to ensure that nobody messed with it). * @param imageSetter Function which sets the image on the Widget. * @return A `Box.Nullable<ImageDescriptor>` for setting the {@link Image} using an {@link ImageDescriptor}. */ public static Box.Nullable<ImageDescriptor> createSetter(Widget lifecycle, Supplier<Image> imageGetter, Consumer<Image> imageSetter) { return new Box.Nullable<ImageDescriptor>() { private ImageDescriptor lastDesc; private Image lastImg; { // when the control is disposed, we'll clear the image lifecycle.addListener(SWT.Dispose, e -> { if (lastDesc != null) { lastDesc.destroyResource(lastImg); } }); } @Override public ImageDescriptor get() { return lastDesc; } @Override public void set(ImageDescriptor newDesc) { // make sure nobody else messed with the image if (imageGetter.get() != lastImg) { // if someone else did mess with it, we can probably survive, so best to just // log the failure and continue with setting the image Errors.log().accept( new IllegalStateException("Setter must have exclusive control over the image field.")); } // set the new image Image newImg; if (newDesc != null) { newImg = (Image) newDesc.createResource(lifecycle.getDisplay()); } else { newImg = null; } imageSetter.accept(newImg); // if an image was already set, destroy it if (lastDesc != null) { lastDesc.destroyResource(lastImg); } // save the fields for the next go-round lastDesc = newDesc; lastImg = newImg; } }; }
From source file:gov.nasa.arc.spife.ui.timeline.part.ScaleTimelineMarkerEditPart.java
License:Open Source License
private Image getImage() { if (image == null || image.isDisposed()) { TimelineMarker marker = getModel(); ImageDescriptor imageDescriptor = marker.getImageDescriptor(); if (imageDescriptor != null) { image = (Image) imageDescriptor.createResource(getViewer().getControl().getDisplay()); }// w w w. j av a2s .co m } return image; }
From source file:gr.scharf.workingsets.internal.RegExWorkingSetPage.java
License:Open Source License
public void createTableViewer(Composite parent) { Table table = new Table(parent, SWT.VIRTUAL | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.SINGLE | SWT.BORDER); TableLayout layout = new TableLayout(); table.setLayout(layout);//from www.j a v a2 s. c o m table.setHeaderVisible(true); this.fPreviewTableViewer = new TableViewer(table); GridData data = new GridData(GridData.FILL_BOTH); data.minimumHeight = 300; this.fPreviewTableViewer.getTable().setLayoutData(data); fComparator = new ResourceComparator(); createTableViewerColumn("Name", 200, 0); createTableViewerColumn("Path", 400, 1); this.fPreviewTableViewer.setLabelProvider(new ITableLabelProvider() { public Image getColumnImage(Object element, int columnIndex) { if (columnIndex == 1) return null; IWorkbenchAdapter adapter = (IWorkbenchAdapter) ((IAdaptable) element) .getAdapter(IWorkbenchAdapter.class); if (adapter == null) { return null; } ImageDescriptor descriptor = adapter.getImageDescriptor(element); if (descriptor == null) { return null; } Image image = (Image) descriptor.createResource(Display.getCurrent()); return image; } public String getColumnText(Object element, int columnIndex) { IResource resource = (IResource) element; if (columnIndex == 1) return resource.getFullPath().toPortableString(); return resource.getName(); } public void addListener(ILabelProviderListener listener) { } public void dispose() { } public boolean isLabelProperty(Object element, String property) { return false; } public void removeListener(ILabelProviderListener listener) { } }); this.fPreviewTableViewer.setContentProvider(new ILazyContentProvider() { @Override public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } @Override public void dispose() { } @Override public void updateElement(int index) { fPreviewTableViewer.replace(fResources[index], index); } }); this.fPreviewTableViewer.setInput(this.fResources); }
From source file:org.eclipse.eavp.viz.service.widgets.TimeSliderComposite.java
License:Open Source License
/** * Creates the "next" button that increments the timestep. * /*from w w w . ja v a 2s . c o m*/ * @param parent * The parent Composite for this widget. Assumed not to be * {@code null}. * @return The new widget. */ private Button createNextButton(Composite parent) { Button nextButton = new Button(parent, SWT.PUSH); // When the button is clicked, playback should be stopped and the // timestep should be incremented. nextButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // Disable playback. setPlayback(false, e); // Increment the timestep. if (incrementTimestep()) { notifyListeners(e); } } }); // Load the button image as necessary. ImageDescriptor imgd = getImageDescriptor("nav_forward.gif"); Image img = (Image) imgd.createResource(getDisplay()); imageDescriptors.add(imgd); images.add(img); // Set the initial tool tip and image. nextButton.setToolTipText("Next"); nextButton.setImage(img); return nextButton; }
From source file:org.eclipse.eavp.viz.service.widgets.TimeSliderComposite.java
License:Open Source License
/** * Creates the "options" button that can be used to configure playback * behavior.//from ww w. j av a 2 s . c om * * @param parent * The parent Composite for this widget. Assumed not to be * {@code null}. * @return The new widget. */ private Button createOptionsButton(Composite parent) { final Button optionsButton = new Button(parent, SWT.PUSH); // When the button is clicked, playback should be stopped and the // timestep should be incremented. optionsButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // Open up the menu below this button. Rectangle r = optionsButton.getBounds(); Point p = new Point(r.x, r.y + r.height); p = optionsButton.getParent().toDisplay(p.x, p.y); Menu menu = optionsMenuManager.getMenu(); menu.setLocation(p.x, p.y); menu.setVisible(true); } }); // Load the button image as necessary. ImageDescriptor imgd = getImageDescriptor("thread_obj.gif"); Image img = (Image) imgd.createResource(getDisplay()); imageDescriptors.add(imgd); images.add(img); // Set the initial tool tip and image. optionsButton.setToolTipText("Playback settings"); optionsButton.setImage(img); return optionsButton; }
From source file:org.eclipse.eavp.viz.service.widgets.TimeSliderComposite.java
License:Open Source License
/** * Creates the "play" button that toggles the playback operation. * //from w ww . j av a2 s.co m * @param parent * The parent Composite for this widget. Assumed not to be * {@code null}. * @return The new widget. */ private Button createPlayButton(Composite parent) { Button playButton = new Button(parent, SWT.PUSH); // When the button is clicked, playback should be toggled. playButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // Toggle playback. setPlayback(!isPlaying, e); } }); // Load the play image. ImageDescriptor imgd = getImageDescriptor("nav_go.gif"); playImage = (Image) imgd.createResource(getDisplay()); imageDescriptors.add(imgd); images.add(playImage); // Load the pause image. imgd = getImageDescriptor("suspend_co.gif"); pauseImage = (Image) imgd.createResource(getDisplay()); imageDescriptors.add(imgd); images.add(pauseImage); // Set the initial tool tip and image. playButton.setToolTipText("Play"); playButton.setImage(playImage); return playButton; }
From source file:org.eclipse.eavp.viz.service.widgets.TimeSliderComposite.java
License:Open Source License
/** * Creates the "previous" button that deccrements the timestep. * /*from ww w. j a v a2 s . c om*/ * @param parent * The parent Composite. Assumed not to be {@code null}. * @return The new button. */ private Button createPrevButton(Composite parent) { Button prevButton = new Button(parent, SWT.PUSH); // When the button is clicked, playback should be stopped and the // timestep should be decremented. prevButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // Disable playback. setPlayback(false, e); // Decrement the timestep. if (decrementTimestep()) { notifyListeners(e); } } }); // Load the button image as necessary. ImageDescriptor imgd = getImageDescriptor("nav_backward.gif"); Image img = (Image) imgd.createResource(getDisplay()); imageDescriptors.add(imgd); images.add(img); // Set the initial tool tip and image. prevButton.setToolTipText("Previous"); prevButton.setImage(img); return prevButton; }