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Viewing changes to laf-widget/src/main/java/org/pushingpixels/lafwidget/scroll/ScrollPaneSelectorWidget.java

  • Committer: Package Import Robot
  • Author(s): Felix Natter
  • Date: 2016-01-18 20:58:45 UTC
  • Revision ID: package-import@ubuntu.com-20160118205845-crbmrkda61qsi5qa
Tags: upstream-7.3+dfsg2
Import upstream version 7.3+dfsg2

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laf-widget/src/main/java/org/pushingpixels/lafwidget/scroll/ScrollPaneSelectorWidget.java
 
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/*
 
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 * Copyright (c) 2005-2010 Laf-Widget Kirill Grouchnikov. All Rights Reserved.
 
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 *
 
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 * Redistribution and use in source and binary forms, with or without
 
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 * modification, are permitted provided that the following conditions are met:
 
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 *
 
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 *  o Redistributions of source code must retain the above copyright notice,
 
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 *    this list of conditions and the following disclaimer.
 
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 *
 
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 *  o Redistributions in binary form must reproduce the above copyright notice,
 
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 *    this list of conditions and the following disclaimer in the documentation
 
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 *    and/or other materials provided with the distribution.
 
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 *
 
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 *  o Neither the name of Laf-Widget Kirill Grouchnikov nor the names of
 
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 *    its contributors may be used to endorse or promote products derived
 
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 *    from this software without specific prior written permission.
 
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 *
 
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 
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 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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 */
 
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package org.pushingpixels.lafwidget.scroll;
 
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import java.awt.event.HierarchyEvent;
 
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import java.awt.event.HierarchyListener;
 
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import java.beans.PropertyChangeEvent;
 
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import java.beans.PropertyChangeListener;
 
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import javax.swing.JScrollPane;
 
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import javax.swing.plaf.basic.ComboPopup;
 
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import org.pushingpixels.lafwidget.*;
 
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import org.pushingpixels.lafwidget.preview.PreviewPainter;
 
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/**
 
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 * Widget that decorates scroll panes with selector.
 
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 * 
 
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 * @author Kirill Grouchnikov
 
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 */
 
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public class ScrollPaneSelectorWidget extends LafWidgetAdapter<JScrollPane> {
 
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        /**
 
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         * The scroll pane selector for the associated scroll pane.
 
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         */
 
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        protected ScrollPaneSelector scrollPaneSelector;
 
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        /**
 
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         * Hierarchy listener - remove the selector in the scroll pane of a combo
 
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         * popup.
 
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         */
 
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        protected HierarchyListener hierarchyListener;
 
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        /**
 
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         * Property change listener - listens on the changes to
 
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         * {@link LafWidget#COMPONENT_PREVIEW_PAINTER} property.
 
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         */
 
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        protected PropertyChangeListener propertyChangeListener;
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see org.pushingpixels.lafwidget.LafWidget#requiresCustomLafSupport()
 
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         */
 
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        @Override
 
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    public boolean requiresCustomLafSupport() {
 
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                return false;
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see org.pushingpixels.lafwidget.LafWidgetAdapter#installUI()
 
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         */
 
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        @Override
 
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        public void installUI() {
 
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                if (LafWidgetRepository.getRepository().getLafSupport()
 
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                                .toInstallExtraElements(this.jcomp)) {
 
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                        PreviewPainter pPainter = LafWidgetUtilities2
 
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                                        .getComponentPreviewPainter(this.jcomp);
 
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                        if (pPainter == null)
 
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                                return;
 
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                        this.scrollPaneSelector = new ScrollPaneSelector();
 
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                        this.scrollPaneSelector.installOnScrollPane(this.jcomp);
 
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                }
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see org.pushingpixels.lafwidget.LafWidgetAdapter#uninstallUI()
 
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         */
 
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        @Override
 
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        public void uninstallUI() {
 
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                if (this.scrollPaneSelector != null) {
 
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                        this.scrollPaneSelector.uninstallFromScrollPane();
 
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                        this.scrollPaneSelector = null;
 
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                }
 
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        }
 
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        @Override
 
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        public void installListeners() {
 
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                this.hierarchyListener = new HierarchyListener() {
 
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                        /*
 
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                         * (non-Javadoc)
 
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                         * 
 
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                         * @see
 
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                         * java.awt.event.HierarchyListener#hierarchyChanged(java.awt.event
 
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                         * .HierarchyEvent)
 
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                         */
 
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                        @Override
 
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            public void hierarchyChanged(HierarchyEvent e) {
 
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                                if (jcomp.getParent() instanceof ComboPopup) {
 
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                                        if (scrollPaneSelector != null) {
 
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                                                scrollPaneSelector.uninstallFromScrollPane();
 
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                                                scrollPaneSelector = null;
 
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                                        }
 
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                                }
 
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                        }
 
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                };
 
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                this.jcomp.addHierarchyListener(this.hierarchyListener);
 
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                this.propertyChangeListener = new PropertyChangeListener() {
 
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                        @Override
 
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            public void propertyChange(PropertyChangeEvent evt) {
 
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                                if (LafWidget.COMPONENT_PREVIEW_PAINTER.equals(evt
 
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                                                .getPropertyName())) {
 
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                                        PreviewPainter pPainter = LafWidgetUtilities2
 
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                                                        .getComponentPreviewPainter(jcomp);
 
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                                        // Uninstall old scroll pane selector
 
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                                        if (scrollPaneSelector != null) {
 
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                                                scrollPaneSelector.uninstallFromScrollPane();
 
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                                                scrollPaneSelector = null;
 
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                                        }
 
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                                        // Install new scroll pane selector
 
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                                        if (pPainter != null
 
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                                                        && LafWidgetRepository.getRepository()
 
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                                                                        .getLafSupport().toInstallExtraElements(
 
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                                                                                        jcomp)) {
 
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                                                scrollPaneSelector = new ScrollPaneSelector();
 
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                                                scrollPaneSelector.installOnScrollPane(jcomp);
 
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                                        }
 
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                                }
 
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                        }
 
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                };
 
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                this.jcomp.addPropertyChangeListener(this.propertyChangeListener);
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see org.pushingpixels.lafwidget.LafWidgetAdapter#uninstallListeners()
 
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         */
 
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        @Override
 
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        public void uninstallListeners() {
 
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                this.jcomp.removeHierarchyListener(this.hierarchyListener);
 
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                this.hierarchyListener = null;
 
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                this.jcomp.removePropertyChangeListener(this.propertyChangeListener);
 
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                this.propertyChangeListener = null;
 
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        }
 
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}