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Viewing changes to substance/src/main/java/org/pushingpixels/substance/api/painter/border/DelegateFractionBasedBorderPainter.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/api/painter/border/DelegateFractionBasedBorderPainter.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.api.painter.border;
 
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import java.awt.*;
 
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import java.awt.MultipleGradientPaint.CycleMethod;
 
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import org.pushingpixels.substance.api.*;
 
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import org.pushingpixels.substance.internal.utils.*;
 
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/**
 
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 * Delegate border painter that allows tweaking the visual appearance of
 
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 * borders.
 
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 * 
 
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 * @author Kirill Grouchnikov
 
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 */
 
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public class DelegateFractionBasedBorderPainter implements
 
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                SubstanceBorderPainter {
 
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        /**
 
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         * Display name of this border painter.
 
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         */
 
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        protected String displayName;
 
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        /**
 
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         * The delegate border painter.
 
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         */
 
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        protected FractionBasedBorderPainter delegate;
 
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        /**
 
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         * 8-digit hexadecimal masks applied on the colors painted by
 
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         * {@link #delegate}. Can be used to apply custom translucency. For example,
 
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         * value 0x80FFFFFF will result in 50% translucency of the original border
 
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         * color.
 
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         */
 
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        protected int[] masks;
 
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        /**
 
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         * Transformation to be applied on the color schemes prior to compute the
 
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         * colors to be used for border painting.
 
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         */
 
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        protected ColorSchemeTransform transform;
 
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        /**
 
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         * Creates a new delegate border painter
 
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         * 
 
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         * @param displayName
 
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         *            Display name of this border painter.
 
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         * @param delegate
 
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         *            The delegate border painter.
 
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         * @param masks
 
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         *            Array of 8-digit hexadecimal masks applied on the relevant
 
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         *            colors painted by the <code>delegate</code>.
 
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         * @param transform
 
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         *            Transformation to be applied on the color schemes prior to
 
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         *            compute the colors to be used for border painting.
 
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         */
 
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        public DelegateFractionBasedBorderPainter(String displayName,
 
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                        FractionBasedBorderPainter delegate, int[] masks,
 
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                        ColorSchemeTransform transform) {
 
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                this.displayName = displayName;
 
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                this.delegate = delegate;
 
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                this.masks = new int[masks.length];
 
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                System.arraycopy(masks, 0, this.masks, 0, masks.length);
 
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                this.transform = transform;
 
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        }
 
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        /**
 
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         * Map of transformed color schemes (to speed up the subsequent lookups).
 
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         */
 
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        protected final static LazyResettableHashMap<SubstanceColorScheme> transformMap = new LazyResettableHashMap<SubstanceColorScheme>(
 
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                        "DelegateBorderPainter");
 
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        @Override
 
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        public boolean isPaintingInnerContour() {
 
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                return false;
 
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        }
 
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        @Override
 
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        public void paintBorder(Graphics g, Component c, int width, int height,
 
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                        Shape contour, Shape innerContour, SubstanceColorScheme borderScheme) {
 
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                Graphics2D graphics = (Graphics2D) g.create();
 
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                graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
 
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                                RenderingHints.VALUE_ANTIALIAS_ON);
 
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                graphics.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,
 
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                                RenderingHints.VALUE_STROKE_NORMALIZE);
 
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                // shift schemes
 
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                SubstanceColorScheme scheme = getShiftScheme(borderScheme);
 
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                float[] fractions = delegate.getFractions();
 
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                ColorSchemeSingleColorQuery[] colorQueries = delegate.getColorQueries();
 
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                Color[] fillColors = new Color[fractions.length];
 
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                for (int i = 0; i < fractions.length; i++) {
 
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                        ColorSchemeSingleColorQuery colorQuery = colorQueries[i];
 
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                        Color color = colorQuery.query(scheme);
 
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                        // apply masks
 
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                        color = new Color(this.masks[i] & color.getRGB(), true);
 
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                        fillColors[i] = color;
 
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                }
 
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                float strokeWidth = SubstanceSizeUtils
 
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                                .getBorderStrokeWidth(SubstanceSizeUtils
 
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                                                .getComponentFontSize(c));
 
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                // issue 433 - the "c" can be null when painting
 
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                // the border of a tree icon used outside the
 
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                // JTree context.
 
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                boolean isSpecialButton = c instanceof SubstanceInternalArrowButton;
 
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                int joinKind = isSpecialButton ? BasicStroke.JOIN_MITER
 
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                                : BasicStroke.JOIN_ROUND;
 
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                int capKind = isSpecialButton ? BasicStroke.CAP_SQUARE
 
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                                : BasicStroke.CAP_BUTT;
 
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                graphics.setStroke(new BasicStroke(strokeWidth, capKind, joinKind));
 
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                MultipleGradientPaint gradient = new LinearGradientPaint(0, 0, 0,
 
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                                height, fractions, fillColors, CycleMethod.REPEAT);
 
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                graphics.setPaint(gradient);
 
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                graphics.draw(contour);
 
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                graphics.dispose();
 
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        }
 
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        @Override
 
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        public String getDisplayName() {
 
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                return this.displayName;
 
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        }
 
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        /**
 
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         * Retrieves a transformed color scheme.
 
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         * 
 
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         * @param orig
 
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         *            Original color scheme.
 
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         * @return Transformed color scheme.
 
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         */
 
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        private SubstanceColorScheme getShiftScheme(SubstanceColorScheme orig) {
 
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                HashMapKey key = SubstanceCoreUtilities.getHashKey(orig
 
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                                .getDisplayName(), this.getDisplayName(), this.transform);
 
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                SubstanceColorScheme result = transformMap.get(key);
 
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                if (result == null) {
 
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                        result = this.transform.transform(orig);
 
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                        transformMap.put(key, result);
 
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                }
 
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                return result;
 
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        }
 
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}