| /******************************************************************************* |
| * Copyright (c) 2005, 2009, 2011 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Matt Carter - bug 170668 |
| * Brad Reynolds - bug 170848 |
| * Matthew Hall - bugs 180746, 207844, 245647, 248621, 232917, 194734, |
| * 195222, 256543, 213893, 262320, 264286, 266563, 306203 |
| * Michael Krauter - bug 180223 |
| * Boris Bokowski - bug 245647 |
| * Tom Schindl - bug 246462 |
| *******************************************************************************/ |
| package org.eclipse.jface.databinding.swt; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| import org.eclipse.core.databinding.observable.Observables; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.list.IObservableList; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.databinding.observable.value.IVetoableValue; |
| import org.eclipse.core.databinding.observable.value.ValueChangingEvent; |
| import org.eclipse.jface.internal.databinding.swt.SWTDelayedObservableValueDecorator; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.CCombo; |
| import org.eclipse.swt.custom.StyledText; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.List; |
| import org.eclipse.swt.widgets.MenuItem; |
| import org.eclipse.swt.widgets.Scale; |
| import org.eclipse.swt.widgets.Slider; |
| import org.eclipse.swt.widgets.Spinner; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.swt.widgets.Widget; |
| |
| /** |
| * A factory for creating observables for SWT widgets |
| * |
| * @since 1.1 |
| */ |
| public class SWTObservables { |
| |
| private static java.util.List<DisplayRealm> realms = new ArrayList<DisplayRealm>(); |
| |
| /** |
| * Returns the realm representing the UI thread for the given display. |
| * |
| * @param display |
| * @return the realm representing the UI thread for the given display |
| */ |
| public static Realm getRealm(final Display display) { |
| synchronized (realms) { |
| for (Iterator<DisplayRealm> it = realms.iterator(); it.hasNext();) { |
| DisplayRealm displayRealm = it.next(); |
| if (displayRealm.display == display) { |
| return displayRealm; |
| } |
| } |
| DisplayRealm result = new DisplayRealm(display); |
| realms.add(result); |
| return result; |
| } |
| } |
| |
| /** |
| * Returns an observable which delays notification of value change events |
| * from <code>observable</code> until <code>delay</code> milliseconds have |
| * elapsed since the last change event, or until a FocusOut event is |
| * received from the underlying widget (whichever happens first). This |
| * observable helps to boost performance in situations where an observable |
| * has computationally expensive listeners (e.g. changing filters in a |
| * viewer) or many dependencies (master fields with multiple detail fields). |
| * A common use of this observable is to delay validation of user input |
| * until the user stops typing in a UI field. |
| * <p> |
| * To notify about pending changes, the returned observable fires a stale |
| * event when the wrapped observable value fires a change event, and remains |
| * stale until the delay has elapsed and the value change is fired. A call |
| * to {@link IObservableValue#getValue() getValue()} while a value change is |
| * pending will fire the value change immediately, short-circuiting the |
| * delay. |
| * <p> |
| * Note that this observable will not forward {@link ValueChangingEvent} |
| * events from a wrapped {@link IVetoableValue}. |
| * |
| * @param delay |
| * the delay in milliseconds |
| * @param observable |
| * the observable being delayed |
| * @return an observable which delays notification of value change events |
| * from <code>observable</code> until <code>delay</code> |
| * milliseconds have elapsed since the last change event. |
| * |
| * @since 1.2 |
| */ |
| public static <T> ISWTObservableValue<T> observeDelayedValue(int delay, |
| ISWTObservableValue<T> observable) { |
| return new SWTDelayedObservableValueDecorator<T>( |
| Observables.observeDelayedValue(delay, observable), |
| observable.getWidget()); |
| } |
| |
| /** |
| * Returns an observable value tracking the enabled state of the given |
| * widget. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Control</li> |
| * <li>org.eclipse.swt.widgets.Menu</li> |
| * <li>org.eclipse.swt.widgets.MenuItem</li> |
| * <li>org.eclipse.swt.widgets.ScrollBar</li> |
| * <li>org.eclipse.swt.widgets.ToolItem</li> |
| * </ul> |
| * |
| * @param widget |
| * @return an observable value tracking the enabled state of the given |
| * widget. |
| * @since 1.5 |
| */ |
| public static ISWTObservableValue observeEnabled(Widget widget) { |
| return WidgetProperties.enabled().observe(widget); |
| } |
| |
| /** |
| * Returns an observable value tracking the enabled state of the given |
| * control |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the enabled state of the given |
| * control |
| */ |
| public static ISWTObservableValue observeEnabled(Control control) { |
| return observeEnabled((Widget) control); |
| } |
| |
| /** |
| * Returns an observable value tracking the visible state of the given |
| * control |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the visible state of the given |
| * control |
| */ |
| public static ISWTObservableValue observeVisible(Control control) { |
| return WidgetProperties.visible().observe(control); |
| } |
| |
| /** |
| * Returns an observable tracking the tooltip text of the given item. The |
| * supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Control</li> |
| * <li>org.eclipse.swt.custom.CTabItem</li> |
| * <li>org.eclipse.swt.widgets.TabItem</li> |
| * <li>org.eclipse.swt.widgets.TableColumn</li> |
| * <li>org.eclipse.swt.widgets.ToolItem</li> |
| * <li>org.eclipse.swt.widgets.TrayItem</li> |
| * <li>org.eclipse.swt.widgets.TreeColumn</li> |
| * </ul> |
| * |
| * @param widget |
| * @return an observable value tracking the tooltip text of the given item |
| * |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeTooltipText(Widget widget) { |
| return WidgetProperties.tooltipText().observe(widget); |
| } |
| |
| /** |
| * Returns an observable value tracking the tooltip text of the given |
| * control |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the tooltip text of the given |
| * control |
| */ |
| public static ISWTObservableValue observeTooltipText(Control control) { |
| return observeTooltipText((Widget) control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Spinner</li> |
| * <li>org.eclipse.swt.widgets.Button</li> |
| * <li>org.eclipse.swt.widgets.Combo</li> |
| * <li>org.eclipse.swt.custom.CCombo</li> |
| * <li>org.eclipse.swt.widgets.List</li> |
| * <li>org.eclipse.swt.widgets.MenuItem (since 1.5)</li> |
| * <li>org.eclipse.swt.widgets.Scale</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| * |
| * @deprecated use instead one of the more specific methods |
| * (observeSelection(Button), observeSelection(Combo) etc) |
| */ |
| public static ISWTObservableValue<?> observeSelection(Widget control) { |
| return WidgetProperties.selection().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Spinner</li> |
| * <li>org.eclipse.swt.widgets.Button</li> |
| * <li>org.eclipse.swt.widgets.Combo</li> |
| * <li>org.eclipse.swt.custom.CCombo</li> |
| * <li>org.eclipse.swt.widgets.List</li> |
| * <li>org.eclipse.swt.widgets.MenuItem (since 1.5)</li> |
| * <li>org.eclipse.swt.widgets.Scale</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| * @deprecated use instead one of the more specific methods |
| * (observeSelection(Button), observeSelection(Combo) etc) |
| */ |
| public static ISWTObservableValue<?> observeSelection(Control control) { |
| return WidgetProperties.selection().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>org.eclipse.swt.widgets.Button</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Boolean> observeSelection(Button control) { |
| return WidgetProperties.selectionButton().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>org.eclipse.swt.widgets.Combo</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<String> observeSelection(Combo control) { |
| return WidgetProperties.selectionCombo().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>org.eclipse.swt.custom.CCombo</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<String> observeSelection(CCombo control) { |
| return WidgetProperties.selectionCCombo().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>org.eclipse.swt.widgets.List</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<String> observeSelection(List control) { |
| return WidgetProperties.selectionList().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>org.eclipse.swt.widgets.MenuItem</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Boolean> observeSelection(MenuItem control) { |
| return WidgetProperties.selectionMenuItem().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>org.eclipse.swt.widgets.Scale</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeSelection(Scale control) { |
| return WidgetProperties.selectionScale().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the selection attribute of the provided |
| * <code>org.eclipse.swt.widgets.Spinner</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeSelection(Spinner control) { |
| return WidgetProperties.selectionSpinner().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the minimum attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Spinner</li> |
| * <li>org.eclipse.swt.widgets.Slider (since 1.5)</li> |
| * <li>org.eclipse.swt.widgets.Scale</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| * @deprecated use instead one of the more specific methods |
| * (observeMin(Spinner), observeMin(Slider), observeMin(Scale)) |
| */ |
| // ok to ignore warnings in deprecated method |
| @SuppressWarnings({ "rawtypes", "unchecked" }) |
| public static ISWTObservableValue observeMin(Control control) { |
| return WidgetProperties.minimum().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the <code>minimum</code> attribute of the |
| * provided <code>org.eclipse.swt.widgets.Scale</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeMin(Scale control) { |
| return WidgetProperties.minimumScale().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the <code>minimum</code> attribute of the |
| * provided <code>org.eclipse.swt.widgets.Scale</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeMin(Slider control) { |
| return WidgetProperties.minimumSlider().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the <code>minimum</code> attribute of the |
| * provided <code>org.eclipse.swt.widgets.Spinner</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeMin(Spinner control) { |
| return WidgetProperties.minimumSpinner().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the maximum attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Spinner</li> |
| * <li>org.eclipse.swt.widgets.Slider (since 1.5)</li> |
| * <li>org.eclipse.swt.widgets.Scale</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| * @deprecated use instead one of the more specific methods |
| * (observeMax(Spinner), observeMax(Slider), observeMax(Scale)) |
| */ |
| // ok to ignore warnings in deprecated method |
| @SuppressWarnings({ "rawtypes", "unchecked" }) |
| public static ISWTObservableValue observeMax(Control control) { |
| return WidgetProperties.maximum().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the <code>maximum</code> attribute of the |
| * provided <code>org.eclipse.swt.widgets.Scale</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeMax(Scale control) { |
| return WidgetProperties.maximumScale().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the <code>maximum</code> attribute of the |
| * provided <code>org.eclipse.swt.widgets.Scale</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeMax(Slider control) { |
| return WidgetProperties.maximumSlider().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the <code>maximum</code> attribute of the |
| * provided <code>org.eclipse.swt.widgets.Spinner</code>. |
| * |
| * @param control |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<Integer> observeMax(Spinner control) { |
| return WidgetProperties.maximumSpinner().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the text attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Text</li> |
| * <li>org.eclipse.swt.custom.StyledText (as of 1.3)</li> |
| * </ul> |
| * |
| * @param control |
| * @param events |
| * array of SWT event types to register for change events. May |
| * include {@link SWT#None}, {@link SWT#Modify}, |
| * {@link SWT#FocusOut} or {@link SWT#DefaultSelection}. |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| * @since 1.3 |
| * @deprecated use instead one of the more specific methods |
| * (observeText(Text), observeText(StyledText)) |
| */ |
| // ok to ignore warnings in deprecated method |
| @SuppressWarnings({ "rawtypes", "unchecked" }) |
| public static ISWTObservableValue observeText(Control control, int[] events) { |
| return WidgetProperties.text(events).observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the text attribute of the provided |
| * <code>Text</code>. |
| * |
| * @param control |
| * @param events |
| * array of SWT event types to register for change events. May |
| * include {@link SWT#None}, {@link SWT#Modify}, |
| * {@link SWT#FocusOut} or {@link SWT#DefaultSelection}. |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<String> observeText(Text control, |
| int[] events) { |
| return WidgetProperties.textText(events).observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the text attribute of the provided |
| * <code>StyledText</code>. |
| * |
| * @param control |
| * @param events |
| * array of SWT event types to register for change events. May |
| * include {@link SWT#None}, {@link SWT#Modify}, |
| * {@link SWT#FocusOut} or {@link SWT#DefaultSelection}. |
| * @return observable value |
| * @since 1.7 |
| */ |
| public static ISWTObservableValue<String> observeText(StyledText control, |
| int[] events) { |
| return WidgetProperties.textStyledText(events).observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the text attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Text</li> |
| * <li>org.eclipse.swt.custom.StyledText (as of 1.3)</li> |
| * </ul> |
| * |
| * @param control |
| * @param event |
| * event type to register for change events |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| */ |
| public static ISWTObservableValue<String> observeText(Control control, |
| int event) { |
| return WidgetProperties.text(event).observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the text attribute of the provided |
| * <code>widget</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Button (as of 1.3)</li> |
| * <li>org.eclipse.swt.custom.CCombo</li> |
| * <li>org.eclipse.swt.custom.CLabel</li> |
| * <li>org.eclipse.swt.widgets.Combo</li> |
| * <li>org.eclipse.swt.widgets.Item</li> |
| * <li>org.eclipse.swt.widgets.Label</li> |
| * <li>org.eclipse.swt.widgets.Link (as of 1.2)</li> |
| * <li>org.eclipse.swt.widgets.Shell</li> |
| * <li>org.eclipse.swt.widgets.StyledText (as of 1.3)</li> |
| * <li>org.eclipse.swt.widgets.Text (as of 1.3)</li> |
| * </ul> |
| * |
| * @param widget |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if the type of <code>widget</code> is unsupported |
| * |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeText(Widget widget) { |
| return WidgetProperties.text().observe(widget); |
| } |
| |
| /** |
| * Returns an observable observing the text attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Button (as of 1.3)</li> |
| * <li>org.eclipse.swt.custom.CCombo</li> |
| * <li>org.eclipse.swt.custom.CLabel</li> |
| * <li>org.eclipse.swt.widgets.Combo</li> |
| * <li>org.eclipse.swt.widgets.Label</li> |
| * <li>org.eclipse.swt.widgets.Link (as of 1.2)</li> |
| * <li>org.eclipse.swt.widgets.Shell</li> |
| * <li>org.eclipse.swt.custom.StyledText (as of 1.3)</li> |
| * <li>org.eclipse.swt.widgets.Text (as of 1.3)</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| */ |
| public static ISWTObservableValue<String> observeText(Control control) { |
| return observeText((Widget) control); |
| } |
| |
| /** |
| * Returns an observable observing the message attribute of the provided |
| * <code>widget</code>. the supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Text</li> |
| * <li>org.eclipse.swt.widgets.ToolTip</li> |
| * <ul> |
| * |
| * @param widget |
| * @return an observable observing the message attribute of the provided |
| * <code>widget</code>. |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeMessage(Widget widget) { |
| return WidgetProperties.message().observe(widget); |
| } |
| |
| /** |
| * Returns an observable observing the image attribute of the provided |
| * <code>widget</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Button</li> |
| * <li>org.eclipse.swt.custom.CLabel</li> |
| * <li>org.eclipse.swt.widgets.Item</li> |
| * <li>org.eclipse.swt.widgets.Label</li> |
| * </ul> |
| * |
| * @param widget |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>widget</code> type is unsupported |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeImage(Widget widget) { |
| return WidgetProperties.image().observe(widget); |
| } |
| |
| /** |
| * Returns an observable observing the items attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Combo</li> |
| * <li>org.eclipse.swt.custom.CCombo</li> |
| * <li>org.eclipse.swt.widgets.List</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable list |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| */ |
| public static IObservableList observeItems(Control control) { |
| return WidgetProperties.items().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the single selection index attribute of |
| * the provided <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.widgets.Table</li> |
| * <li>org.eclipse.swt.widgets.Combo</li> |
| * <li>org.eclipse.swt.custom.CCombo</li> |
| * <li>org.eclipse.swt.widgets.List</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| */ |
| public static ISWTObservableValue observeSingleSelectionIndex( |
| Control control) { |
| return WidgetProperties.singleSelectionIndex().observe(control); |
| } |
| |
| /** |
| * Returns an observable value tracking the foreground color of the given |
| * control |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the foreground color of the given |
| * control |
| */ |
| public static ISWTObservableValue observeForeground(Control control) { |
| return WidgetProperties.foreground().observe(control); |
| } |
| |
| /** |
| * Returns an observable value tracking the background color of the given |
| * control |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the background color of the given |
| * control |
| */ |
| public static ISWTObservableValue observeBackground(Control control) { |
| return WidgetProperties.background().observe(control); |
| } |
| |
| /** |
| * Returns an observable value tracking the font of the given control. |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the font of the given control |
| */ |
| public static ISWTObservableValue observeFont(Control control) { |
| return WidgetProperties.font().observe(control); |
| } |
| |
| /** |
| * Returns an observable value tracking the size of the given control. |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the size of the given control |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeSize(Control control) { |
| return WidgetProperties.size().observe(control); |
| } |
| |
| /** |
| * Returns an observable value tracking the location of the given control. |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the location of the given control |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeLocation(Control control) { |
| return WidgetProperties.location().observe(control); |
| } |
| |
| /** |
| * Returns an observable value tracking the focus of the given control. |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the focus of the given control |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeFocus(Control control) { |
| return WidgetProperties.focused().observe(control); |
| } |
| |
| /** |
| * Returns an observable value tracking the bounds of the given control. |
| * |
| * @param control |
| * the control to observe |
| * @return an observable value tracking the bounds of the given control |
| * @since 1.3 |
| */ |
| public static ISWTObservableValue observeBounds(Control control) { |
| return WidgetProperties.bounds().observe(control); |
| } |
| |
| /** |
| * Returns an observable observing the editable attribute of the provided |
| * <code>control</code>. The supported types are: |
| * <ul> |
| * <li>org.eclipse.swt.custom.CCombo (since 1.6)</li> |
| * <li>org.eclipse.swt.custom.StyledText (since 1.6)</li> |
| * <li>org.eclipse.swt.widgets.Text</li> |
| * </ul> |
| * |
| * @param control |
| * @return observable value |
| * @throws IllegalArgumentException |
| * if <code>control</code> type is unsupported |
| */ |
| public static ISWTObservableValue observeEditable(Control control) { |
| return WidgetProperties.editable().observe(control); |
| } |
| |
| private static class DisplayRealm extends Realm { |
| private Display display; |
| |
| /** |
| * @param display |
| */ |
| private DisplayRealm(Display display) { |
| this.display = display; |
| } |
| |
| public boolean isCurrent() { |
| return Display.getCurrent() == display; |
| } |
| |
| public void asyncExec(final Runnable runnable) { |
| Runnable safeRunnable = new Runnable() { |
| public void run() { |
| safeRun(runnable); |
| } |
| }; |
| if (!display.isDisposed()) { |
| display.asyncExec(safeRunnable); |
| } |
| } |
| |
| public void timerExec(int milliseconds, final Runnable runnable) { |
| if (!display.isDisposed()) { |
| Runnable safeRunnable = new Runnable() { |
| public void run() { |
| safeRun(runnable); |
| } |
| }; |
| display.timerExec(milliseconds, safeRunnable); |
| } |
| } |
| |
| public int hashCode() { |
| return (display == null) ? 0 : display.hashCode(); |
| } |
| |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| final DisplayRealm other = (DisplayRealm) obj; |
| if (display == null) { |
| if (other.display != null) |
| return false; |
| } else if (!display.equals(other.display)) |
| return false; |
| return true; |
| } |
| } |
| } |