#62949 - SlideShow rendering - keyframe fractions must be increasing
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1847428 13f79535-47bb-0310-9956-ffa450edef68
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@ -29,7 +29,10 @@ import java.awt.geom.Rectangle2D;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Map;
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import java.util.Objects;
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import java.util.TreeMap;
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import java.util.function.BiFunction;
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import org.apache.poi.sl.usermodel.AbstractColorStyle;
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import org.apache.poi.sl.usermodel.ColorStyle;
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@ -197,28 +200,17 @@ public class DrawPaint {
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@Override
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public int getShade() {
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int shade = orig.getShade();
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switch (modifier) {
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case DARKEN:
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return Math.min(100000, Math.max(0,shade)+40000);
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case DARKEN_LESS:
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return Math.min(100000, Math.max(0,shade)+20000);
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default:
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return shade;
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}
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return scale(orig.getShade(), PaintModifier.DARKEN_LESS, PaintModifier.DARKEN);
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}
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@Override
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public int getTint() {
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int tint = orig.getTint();
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switch (modifier) {
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case LIGHTEN:
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return Math.min(100000, Math.max(0,tint)+40000);
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case LIGHTEN_LESS:
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return Math.min(100000, Math.max(0,tint)+20000);
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default:
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return tint;
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}
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return scale(orig.getTint(), PaintModifier.LIGHTEN_LESS, PaintModifier.LIGHTEN);
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}
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private int scale(int value, PaintModifier lessModifier, PaintModifier moreModifier) {
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int delta = (modifier == lessModifier ? 20000 : (modifier == moreModifier ? 40000 : 0));
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return Math.min(100000, Math.max(0,value)+delta);
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}
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};
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@ -300,7 +292,7 @@ public class DrawPaint {
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Color result = color.getColor();
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double alpha = getAlpha(result, color);
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double hsl[] = RGB2HSL(result); // values are in the range [0..100] (usually ...)
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double[] hsl = RGB2HSL(result); // values are in the range [0..100] (usually ...)
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applyHslModOff(hsl, 0, color.getHueMod(), color.getHueOff());
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applyHslModOff(hsl, 1, color.getSatMod(), color.getSatOff());
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applyHslModOff(hsl, 2, color.getLumMod(), color.getLumOff());
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@ -344,7 +336,7 @@ public class DrawPaint {
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* @param mod the modulation adjustment
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* @param off the offset adjustment
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*/
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private static void applyHslModOff(double hsl[], int hslPart, int mod, int off) {
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private static void applyHslModOff(double[] hsl, int hslPart, int mod, int off) {
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if (mod == -1) {
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mod = 100000;
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}
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@ -363,7 +355,7 @@ public class DrawPaint {
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*
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* For a shade, the equation is luminance * %tint.
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*/
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private static void applyShade(double hsl[], ColorStyle fc) {
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private static void applyShade(double[] hsl, ColorStyle fc) {
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int shade = fc.getShade();
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if (shade == -1) {
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return;
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@ -380,7 +372,7 @@ public class DrawPaint {
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* For a tint, the equation is luminance * %tint + (1-%tint).
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* (Note that 1-%tint is equal to the lumOff value in DrawingML.)
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*/
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private static void applyTint(double hsl[], ColorStyle fc) {
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private static void applyTint(double[] hsl, ColorStyle fc) {
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int tint = fc.getTint();
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if (tint == -1) {
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return;
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@ -403,70 +395,63 @@ public class DrawPaint {
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}
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Rectangle2D anchor = DrawShape.getAnchor(graphics, shape);
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final double h = anchor.getHeight(), w = anchor.getWidth(), x = anchor.getX(), y = anchor.getY();
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AffineTransform at = AffineTransform.getRotateInstance(Math.toRadians(angle), anchor.getCenterX(), anchor.getCenterY());
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double diagonal = Math.sqrt(h * h + w * w);
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Point2D p1 = new Point2D.Double(x + w / 2 - diagonal / 2, y + h / 2);
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p1 = at.transform(p1, null);
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Point2D p2 = new Point2D.Double(x + w, y + h / 2);
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p2 = at.transform(p2, null);
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double diagonal = Math.sqrt(Math.pow(anchor.getWidth(),2) + Math.pow(anchor.getHeight(),2));
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final Point2D p1 = at.transform(new Point2D.Double(anchor.getCenterX() - diagonal / 2, anchor.getCenterY()), null);
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final Point2D p2 = at.transform(new Point2D.Double(anchor.getMaxX(), anchor.getCenterY()), null);
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// snapToAnchor(p1, anchor);
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// snapToAnchor(p2, anchor);
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if (p1.equals(p2)) {
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// gradient paint on the same point throws an exception ... and doesn't make sense
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return null;
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}
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float[] fractions = fill.getGradientFractions();
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Color[] colors = new Color[fractions.length];
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int i = 0;
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for (ColorStyle fc : fill.getGradientColors()) {
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// if fc is null, use transparent color to get color of background
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colors[i++] = (fc == null) ? TRANSPARENT : applyColorTransform(fc);
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}
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return new LinearGradientPaint(p1, p2, fractions, colors);
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// gradient paint on the same point throws an exception ... and doesn't make sense
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return (p1.equals(p2)) ? null : safeFractions((f,c)->new LinearGradientPaint(p1,p2,f,c), fill);
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}
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@SuppressWarnings("WeakerAccess")
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protected Paint createRadialGradientPaint(GradientPaint fill, Graphics2D graphics) {
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Rectangle2D anchor = DrawShape.getAnchor(graphics, shape);
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Point2D pCenter = new Point2D.Double(anchor.getX() + anchor.getWidth()/2,
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anchor.getY() + anchor.getHeight()/2);
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final Point2D pCenter = new Point2D.Double(anchor.getCenterX(), anchor.getCenterY());
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float radius = (float)Math.max(anchor.getWidth(), anchor.getHeight());
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final float radius = (float)Math.max(anchor.getWidth(), anchor.getHeight());
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float[] fractions = fill.getGradientFractions();
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Color[] colors = new Color[fractions.length];
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int i=0;
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for (ColorStyle fc : fill.getGradientColors()) {
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colors[i++] = applyColorTransform(fc);
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}
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return new RadialGradientPaint(pCenter, radius, fractions, colors);
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return safeFractions((f,c)->new RadialGradientPaint(pCenter,radius,f,c), fill);
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}
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@SuppressWarnings({"WeakerAccess", "unused"})
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protected Paint createPathGradientPaint(GradientPaint fill, Graphics2D graphics) {
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// currently we ignore an eventually center setting
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float[] fractions = fill.getGradientFractions();
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Color[] colors = new Color[fractions.length];
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return safeFractions(PathGradientPaint::new, fill);
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}
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int i=0;
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for (ColorStyle fc : fill.getGradientColors()) {
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colors[i++] = applyColorTransform(fc);
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private Paint safeFractions(BiFunction<float[],Color[],Paint> init, GradientPaint fill) {
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float[] fractions = fill.getGradientFractions();
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final ColorStyle[] styles = fill.getGradientColors();
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// need to remap the fractions, because Java doesn't like repeating fraction values
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Map<Float,Color> m = new TreeMap<>();
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for (int i = 0; i<fractions.length; i++) {
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// if fc is null, use transparent color to get color of background
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m.put(fractions[i], (styles[i] == null ? TRANSPARENT : applyColorTransform(styles[i])));
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}
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return new PathGradientPaint(colors, fractions);
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final Color[] colors = new Color[m.size()];
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if (fractions.length != m.size()) {
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fractions = new float[m.size()];
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}
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int i=0;
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for (Map.Entry<Float,Color> me : m.entrySet()) {
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fractions[i] = me.getKey();
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colors[i] = me.getValue();
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i++;
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}
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return init.apply(fractions, colors);
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}
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/**
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@ -23,21 +23,24 @@ import java.awt.MultipleGradientPaint.CycleMethod;
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import java.awt.geom.*;
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import java.awt.image.*;
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import org.apache.poi.util.Internal;
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@Internal
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class PathGradientPaint implements Paint {
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// http://asserttrue.blogspot.de/2010/01/how-to-iimplement-custom-paint-in-50.html
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protected final Color colors[];
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protected final float fractions[];
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protected final int capStyle;
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protected final int joinStyle;
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protected final int transparency;
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private final Color[] colors;
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private final float[] fractions;
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private final int capStyle;
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private final int joinStyle;
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private final int transparency;
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public PathGradientPaint(Color colors[], float fractions[]) {
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this(colors,fractions,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);
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PathGradientPaint(float[] fractions, Color[] colors) {
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this(fractions,colors,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);
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}
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public PathGradientPaint(Color colors[], float fractions[], int capStyle, int joinStyle) {
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private PathGradientPaint(float[] fractions, Color[] colors, int capStyle, int joinStyle) {
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this.colors = colors.clone();
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this.fractions = fractions.clone();
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this.capStyle = capStyle;
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@ -66,26 +69,26 @@ class PathGradientPaint implements Paint {
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}
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class PathGradientContext implements PaintContext {
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protected final Rectangle deviceBounds;
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protected final Rectangle2D userBounds;
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final Rectangle deviceBounds;
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final Rectangle2D userBounds;
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protected final AffineTransform xform;
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protected final RenderingHints hints;
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final RenderingHints hints;
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/**
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* for POI: the shape will be only known when the subclasses determines the concrete implementation
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* in the draw/-content method, so we need to postpone the setting/creation as long as possible
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**/
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protected final Shape shape;
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protected final PaintContext pCtx;
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protected final int gradientSteps;
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final PaintContext pCtx;
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final int gradientSteps;
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WritableRaster raster;
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public PathGradientContext(
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ColorModel cm
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, Rectangle deviceBounds
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, Rectangle2D userBounds
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, AffineTransform xform
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, RenderingHints hints
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PathGradientContext(
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ColorModel cm
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, Rectangle deviceBounds
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, Rectangle2D userBounds
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, AffineTransform xform
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, RenderingHints hints
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) {
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shape = (Shape)hints.get(Drawable.GRADIENT_SHAPE);
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if (shape == null) {
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@ -139,7 +142,7 @@ class PathGradientPaint implements Paint {
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return childRaster;
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}
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protected int getGradientSteps(Shape gradientShape) {
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int getGradientSteps(Shape gradientShape) {
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Rectangle rect = gradientShape.getBounds();
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int lower = 1;
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int upper = (int)(Math.max(rect.getWidth(),rect.getHeight())/2.0);
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@ -158,7 +161,7 @@ class PathGradientPaint implements Paint {
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protected void createRaster() {
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void createRaster() {
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ColorModel cm = getColorModel();
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raster = cm.createCompatibleWritableRaster((int)deviceBounds.getWidth(), (int)deviceBounds.getHeight());
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BufferedImage img = new BufferedImage(cm, raster, false, null);
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@ -168,7 +171,7 @@ class PathGradientPaint implements Paint {
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graphics.transform(xform);
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Raster img2 = pCtx.getRaster(0, 0, gradientSteps, 1);
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int rgb[] = new int[cm.getNumComponents()];
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int[] rgb = new int[cm.getNumComponents()];
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for (int i = gradientSteps-1; i>=0; i--) {
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img2.getPixel(i, 0, rgb);
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@ -47,7 +47,7 @@ public class TestPPTX2PNG {
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private static final POIDataSamples samples = POIDataSamples.getSlideShowInstance();
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private static final File basedir = null;
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private static final String files =
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"53446.ppt, alterman_security.ppt, alterman_security.pptx, KEY02.pptx, themes.pptx, backgrounds.pptx, layouts.pptx, sample.pptx, shapes.pptx, 54880_chinese.ppt";
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"53446.ppt, alterman_security.ppt, alterman_security.pptx, KEY02.pptx, themes.pptx, backgrounds.pptx, layouts.pptx, sample.pptx, shapes.pptx, 54880_chinese.ppt, keyframes.ppt";
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BIN
test-data/slideshow/keyframes.ppt
Normal file
BIN
test-data/slideshow/keyframes.ppt
Normal file
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