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Viewing changes to substance/src/main/java/org/pushingpixels/substance/internal/ui/SubstanceViewportUI.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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substance/src/main/java/org/pushingpixels/substance/internal/ui/SubstanceViewportUI.java
 
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/*
 
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 * Copyright (c) 2005-2010 Substance 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 Substance 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.substance.internal.ui;
 
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import java.awt.Color;
 
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import java.awt.Graphics;
 
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import javax.swing.JComponent;
 
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import javax.swing.JViewport;
 
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import javax.swing.plaf.*;
 
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import javax.swing.plaf.basic.BasicViewportUI;
 
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import org.pushingpixels.substance.api.SubstanceLookAndFeel;
 
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import org.pushingpixels.substance.internal.painter.BackgroundPaintingUtils;
 
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import org.pushingpixels.substance.internal.utils.SubstanceColorUtilities;
 
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import org.pushingpixels.substance.internal.utils.SubstanceCoreUtilities;
 
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/**
 
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 * UI for panels in <b>Substance</b> look and feel.
 
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 * 
 
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 * @author Kirill Grouchnikov
 
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 */
 
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public class SubstanceViewportUI extends BasicViewportUI {
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see javax.swing.plaf.ComponentUI#createUI(javax.swing.JComponent)
 
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         */
 
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        public static ComponentUI createUI(JComponent comp) {
 
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                SubstanceCoreUtilities.testComponentCreationThreadingViolation(comp);
 
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                return new SubstanceViewportUI();
 
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        }
 
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        @Override
 
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        protected void installDefaults(JComponent c) {
 
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                super.installDefaults(c);
 
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                // support for per-window skins
 
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                Color backgr = c.getBackground();
 
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                if ((backgr == null) || (backgr instanceof UIResource)) {
 
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                        Color backgroundFillColor = SubstanceColorUtilities
 
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                                        .getBackgroundFillColor(c);
 
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                        if (backgroundFillColor != null) {
 
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                                c.setBackground(new ColorUIResource(backgroundFillColor));
 
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                        }
 
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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 javax.swing.plaf.ComponentUI#update(java.awt.Graphics,
 
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         * javax.swing.JComponent)
 
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         */
 
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        @Override
 
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        public void update(Graphics g, JComponent c) {
 
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                if (!SubstanceLookAndFeel.isCurrentLookAndFeel())
 
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                        return;
 
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                if (toPaintBackground(c)) {
 
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                        BackgroundPaintingUtils.update(g, c, false);
 
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                }
 
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                super.paint(g, c);
 
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        }
 
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        /**
 
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         * Returns indication whether the viewport background should be filled.
 
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         * 
 
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         * @param c
 
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         *            Component (should be {@link JViewport}).
 
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         * @return <code>true</code> if the viewport background should be filled
 
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         *         with the background color, <code>false</code> otherwise.
 
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         */
 
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        protected boolean toPaintBackground(JComponent c) {
 
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                return SubstanceCoreUtilities.isOpaque(c);
 
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        }
 
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}