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/**
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* Copyright (C) 2016 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.ui.combo;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.custom.CCombo;
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import org.eclipse.swt.events.DisposeEvent;
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import org.eclipse.swt.events.DisposeListener;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.ui.forms.widgets.TableWrapData;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.preference.Resources;
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import eu.etaxonomy.taxeditor.ui.element.AbstractCdmFormElement;
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import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
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import eu.etaxonomy.taxeditor.ui.element.ICdmFormElement;
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import eu.etaxonomy.taxeditor.ui.element.IEnableableFormElement;
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import eu.etaxonomy.taxeditor.ui.element.ISelectable;
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import eu.etaxonomy.taxeditor.ui.element.LayoutConstants;
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/**
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* @author pplitzner
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* @date Aug 11, 2016
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*
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*/
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public abstract class AbstractComboElement<T> extends
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AbstractCdmFormElement implements SelectionListener,
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IEnableableFormElement, ISelectable,
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DisposeListener {
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protected static final int DEFAULT_VISIBLE_ITEMS = 10;
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protected T selection;
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protected Label label;
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protected final CCombo combo;
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public AbstractComboElement(CdmFormFactory formFactory, ICdmFormElement formElement) {
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super(formFactory, formElement);
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label = formFactory.createLabel(getLayoutComposite(), "");
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addControl(label);
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// create combo
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combo = new CCombo(getLayoutComposite(), SWT.READ_ONLY|SWT.BORDER);
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addControl(combo);
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TableWrapData fill_HORIZONTALLY = LayoutConstants.FILL_HORIZONTALLY();
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combo.setLayoutData(fill_HORIZONTALLY);
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fill_HORIZONTALLY.maxWidth = 50;
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combo.setVisibleItemCount(DEFAULT_VISIBLE_ITEMS);
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//disable mouse-wheel selection
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combo.addListener(SWT.MouseWheel, e->e.doit=false);
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}
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/** {@inheritDoc} */
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@Override
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public void setBackground(Color color) {
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if (label != null) {
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label.setBackground(color);
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}
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}
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/** {@inheritDoc} */
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@Override
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public void setIrrelevant(boolean irrelevant) {
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String colorId = irrelevant ? Resources.COLOR_COMPOSITE_IRRELEVANT
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: Resources.COLOR_COMPOSITE_BACKGROUND;
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Color color = AbstractUtility.getColor(colorId);
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combo.setBackground(color);
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if (label != null) {
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label.setBackground(color);
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}
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}
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public void setVisibleItemCount(int count){
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combo.setVisibleItemCount(count);
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}
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/** {@inheritDoc} */
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@Override
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public void setSelected(boolean selected) {
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setBackground(selected ? SELECTED : getPersistentBackground());
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}
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public T getSelection() {
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return selection;
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}
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public void addSelectionListener(SelectionListener listener) {
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combo.addSelectionListener(listener);
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}
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public void removeSelectionListener(SelectionListener listener) {
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combo.removeSelectionListener(listener);
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}
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/** {@inheritDoc} */
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@Override
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public void widgetDisposed(DisposeEvent e) {
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PreferencesUtil.getPreferenceStore().removePropertyChangeListener(this);
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}
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@Override
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public void widgetDefaultSelected(SelectionEvent e) {
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}
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@Override
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public boolean isEnabled() {
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return combo.isEnabled();
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}
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/** {@inheritDoc} */
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@Override
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public void setEnabled(boolean enabled) {
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combo.setEnabled(enabled);
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}
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public abstract void setSelection(T selection);
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}
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