diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/util/ControlSwitcher.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/util/ControlSwitcher.java | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/util/ControlSwitcher.java b/common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/util/ControlSwitcher.java deleted file mode 100644 index 1d527ff73f..0000000000 --- a/common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/util/ControlSwitcher.java +++ /dev/null @@ -1,130 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2008, 2010 Oracle. 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: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.common.ui.internal.util; - -import org.eclipse.jpt.common.ui.internal.listeners.SWTPropertyChangeListenerWrapper; -import org.eclipse.jpt.common.utility.internal.Transformer; -import org.eclipse.jpt.common.utility.model.event.PropertyChangeEvent; -import org.eclipse.jpt.common.utility.model.listener.PropertyChangeListener; -import org.eclipse.jpt.common.utility.model.value.PropertyValueModel; -import org.eclipse.swt.SWT; -import org.eclipse.swt.widgets.Control; -import org.eclipse.swt.widgets.Label; -import org.eclipse.ui.part.PageBook; - -/** - * This controller is responsible to switch the active page based on a value. A - * <code>Transformer</code> is used to transformed that value into a - * <code>Control</code>. - * - * @version 2.3 - * @since 2.0 - */ -public final class ControlSwitcher -{ - /** - * The widget that is used to show the active <code>Control</code>. - */ - private PageBook pageBook; - - /** - * The <code>Transformer</code> used to transform the value into a - * <code>Control</code>. - */ - private Transformer<?, Control> paneTransformer; - - private Label emptyLabel; - - /** - * Creates a new <code>ControlSwitcher</code>. - * - * @param switchHolder The holder of the value that will be used to retrieve - * the right <code>Control</code> when passed to the given transformer - * @param paneTransformer The <code>Transformer</code> used to transform the value into a - * <code>Control</code> - * @param pageBook The <code>Transformer</code> used to transform the value - * into a <code>Control</code> - */ - public <T> ControlSwitcher(PropertyValueModel<? extends T> switchHolder, - Transformer<T, Control> paneTransformer, - PageBook pageBook) - { - super(); - initialize(switchHolder, paneTransformer, pageBook); - } - - private void initialize(PropertyValueModel<?> switchHolder, - Transformer<?, Control> paneTransformer, - PageBook pageBook) - { - this.pageBook = pageBook; - this.paneTransformer = paneTransformer; - - this.emptyLabel = this.buildEmptyLabel(); - - switchHolder.addPropertyChangeListener( - PropertyValueModel.VALUE, - buildPropertyChangeListener() - ); - - switchPages(switchHolder.getValue()); - } - - //Build an empty label to display in the page book when the paneTransformer returns null. - //SWT.SHADOW_NONE makes the line separator not visible - //This is the best we can come up with for an empty page - private Label buildEmptyLabel() { - return new Label(this.pageBook, SWT.SEPARATOR | SWT.SHADOW_NONE | SWT.HORIZONTAL); - } - - private PropertyChangeListener buildPropertyChangeListener() { - return new SWTPropertyChangeListenerWrapper( - buildPropertyChangeListener_() - ); - } - - private PropertyChangeListener buildPropertyChangeListener_() { - return new PropertyChangeListener() { - public void propertyChanged(PropertyChangeEvent e) { - switchPages(e.getNewValue()); - } - }; - } - - /** - * Switches the active page by transforming the given value into its - * corresponding pane. - * - * @param value The state passed to the transformer in order to retrieve the - * new pane - */ - private void switchPages(Object value) { - if (this.pageBook.isDisposed()) { - return; - } - - // Retrieve the Control for the new value - Control page = transform(value); - - if (page == null) { - //Note: We can't pass in null due to a bug in PageBook - page = this.emptyLabel; - } - this.pageBook.showPage(page); - - // Revalidate the parents in order to update the layout - SWTUtil.reflow(this.pageBook); - } - - @SuppressWarnings("unchecked") - private Control transform(Object value) { - return ((Transformer<Object, Control>) this.paneTransformer).transform(value); - } -}
\ No newline at end of file |