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/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
package org.apache.poi.xslf.usermodel;
import org.apache.poi.util.Beta;
import org.apache.poi.util.Internal;
import org.apache.xmlbeans.XmlObject;
import org.openxmlformats.schemas.drawingml.x2006.main.CTColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTHslColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTPresetColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTSRgbColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTScRgbColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTSchemeColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTSystemColor;
import org.w3c.dom.Node;
import java.awt.Color;
import java.util.HashMap;
import java.util.Map;
/**
* Encapsulates logic to read color definitions from DrawingML and convert them to java.awt.Color
*
* @author Yegor Kozlov
*/
@Beta
@Internal
public class XSLFColor {
private XmlObject _xmlObject;
private Color _color;
private CTSchemeColor _phClr;
public XSLFColor(XmlObject obj, XSLFTheme theme, CTSchemeColor phClr) {
_xmlObject = obj;
_phClr = phClr;
_color = toColor(obj, theme);
}
@Internal
public XmlObject getXmlObject() {
return _xmlObject;
}
/**
*
* @return the displayed color as a Java Color.
* If not color information was found in the supplied xml object then a null is returned.
*/
public Color getColor() {
return _color == null ? null : applyColorTransform(_color);
}
private Color applyColorTransform(Color color){
Color result = color;
int alpha = getAlpha();
if(alpha != -1){
result = new Color(
result.getRed(), result.getGreen(), result.getBlue(),
Math.round(255 * alpha * 0.01f));
}
int lumOff = getLumOff();
int lumMod = getLumMod();
if(lumMod != -1 || lumOff != -1){
result = modulateLuminanace(result,
lumMod == -1 ? 100 : lumMod,
lumOff == -1 ? 0 : lumOff);
}
int shade = getShade();
if(shade != -1){
result = shade(result, shade);
}
int tint = getTint();
if(tint != -1){
result = tint(result, tint);
}
return result;
}
Color toColor(XmlObject obj, XSLFTheme theme) {
Color color = null;
for (XmlObject ch : obj.selectPath("*")) {
if (ch instanceof CTHslColor) {
CTHslColor hsl = (CTHslColor)ch;
int h = hsl.getHue2();
int s = hsl.getSat2();
int l = hsl.getLum2();
// This conversion is not correct and differs from PowerPoint.
// TODO: Revisit and improve.
color = Color.getHSBColor(h / 60000f, s / 100000f, l / 100000f);
} else if (ch instanceof CTPresetColor) {
CTPresetColor prst = (CTPresetColor)ch;
String colorName = prst.getVal().toString();
color = presetColors.get(colorName);
} else if (ch instanceof CTSchemeColor) {
CTSchemeColor schemeColor = (CTSchemeColor)ch;
String colorRef = schemeColor.getVal().toString();
if(_phClr != null) {
// context color overrides the theme
colorRef = _phClr.getVal().toString();
}
// find referenced CTColor in the theme and convert it to java.awt.Color via a recursive call
CTColor ctColor = theme.getCTColor(colorRef);
if(ctColor != null) color = toColor(ctColor, null);
} else if (ch instanceof CTScRgbColor) {
// same as CTSRgbColor but with values expressed in percents
CTScRgbColor scrgb = (CTScRgbColor)ch;
int r = scrgb.getR();
int g = scrgb.getG();
int b = scrgb.getB();
color = new Color(255 * r / 100000, 255 * g / 100000, 255 * b / 100000);
} else if (ch instanceof CTSRgbColor) {
CTSRgbColor srgb = (CTSRgbColor)ch;
byte[] val = srgb.getVal();
color = new Color(0xFF & val[0], 0xFF & val[1], 0xFF & val[2]);
} else if (ch instanceof CTSystemColor) {
CTSystemColor sys = (CTSystemColor)ch;
if(sys.isSetLastClr()) {
byte[] val = sys.getLastClr();
color = new Color(0xFF & val[0], 0xFF & val[1], 0xFF & val[2]);
} else {
// YK: color is a string like "menuText" or "windowText", we return black for such cases
String colorName = sys.getVal().toString();
color = Color.black;
}
} else {
throw new IllegalArgumentException("Unexpected color choice: " + ch.getClass());
}
}
return color;
}
/**
* Read a perecentage value from the supplied xml bean.
* Example:
*
*
* the returned value is 45
*
* @return the percentage value in the range [0 .. 100]
*/
private int getPercentageValue(String elem){
String query = "declare namespace a='http://schemas.openxmlformats.org/drawingml/2006/main' $this//a:" + elem;
XmlObject[] obj;
// first ask the context color and if not found, ask the actual color bean
if(_phClr != null){
obj = _phClr.selectPath(query);
if(obj.length == 1){
Node attr = obj[0].getDomNode().getAttributes().getNamedItem("val");
if(attr != null) {
return Integer.parseInt(attr.getNodeValue()) / 1000;
}
}
}
obj = _xmlObject.selectPath(query);
if(obj.length == 1){
Node attr = obj[0].getDomNode().getAttributes().getNamedItem("val");
if(attr != null) {
return Integer.parseInt(attr.getNodeValue()) / 1000;
}
}
return -1;
}
private int getAngleValue(String elem){
String color = "declare namespace a='http://schemas.openxmlformats.org/drawingml/2006/main' $this//a:" + elem;
XmlObject[] obj;
// first ask the context color and if not found, ask the actual color bean
if(_phClr != null){
obj = _xmlObject.selectPath( color );
if(obj.length == 1){
Node attr = obj[0].getDomNode().getAttributes().getNamedItem("val");
if(attr != null) {
return Integer.parseInt(attr.getNodeValue()) / 60000;
}
}
}
obj = _xmlObject.selectPath( color );
if(obj.length == 1){
Node attr = obj[0].getDomNode().getAttributes().getNamedItem("val");
if(attr != null) {
return Integer.parseInt(attr.getNodeValue()) / 60000;
}
}
return -1;
}
/**
* the opacity as expressed by a percentage value
*
* @return opacity in percents in the range [0..100]
* or -1 if the value is not set
*/
int getAlpha(){
return getPercentageValue("alpha");
}
/**
* the opacity as expressed by a percentage relative to the input color
*
* @return opacity in percents in the range [0..100]
* or -1 if the value is not set
*/
int getAlphaMod(){
return getPercentageValue("alphaMod");
}
/**
* the opacity as expressed by a percentage offset increase or decrease relative to
* the input color. Increases will never increase the opacity beyond 100%, decreases will
* never decrease the opacity below 0%.
*
* @return opacity shift in percents in the range [0..100]
* or -1 if the value is not set
*/
int getAlphaOff(){
return getPercentageValue("alphaOff");
}
int getHue(){
return getAngleValue("hue");
}
int getHueMod(){
return getPercentageValue("hueMod");
}
int getHueOff(){
return getPercentageValue("hueOff");
}
/**
* specifies the input color with the specified luminance,
* but with its hue and saturation unchanged.
*
* @return luminance in percents in the range [0..100]
* or -1 if the value is not set
*/
int getLum(){
return getPercentageValue("lum");
}
/**
* the luminance as expressed by a percentage relative to the input color
*
* @return luminance in percents in the range [0..100]
* or -1 if the value is not set
*/
int getLumMod(){
return getPercentageValue("lumMod");
}
/**
* the luminance shift as expressed by a percentage relative to the input color
*
* @return luminance shift in percents in the range [0..100]
* or -1 if the value is not set
*/
int getLumOff(){
return getPercentageValue("lumOff");
}
/**
* specifies the input color with the specified saturation,
* but with its hue and luminance unchanged.
*
* @return saturation in percents in the range [0..100]
* or -1 if the value is not set
*/
int getSat(){
return getPercentageValue("sat");
}
/**
* the saturation as expressed by a percentage relative to the input color
*
* @return saturation in percents in the range [0..100]
* or -1 if the value is not set
*/
int getSatMod(){
return getPercentageValue("satMod");
}
/**
* the saturation shift as expressed by a percentage relative to the input color
*
* @return saturation shift in percents in the range [0..100]
* or -1 if the value is not set
*/
int getSatOff(){
return getPercentageValue("satOff");
}
/**
* specifies the input color with the specific red component, but with the blue and green color
* components unchanged
*
* @return the value of the red component specified as a
* percentage with 0% indicating minimal blue and 100% indicating maximum
* or -1 if the value is not set
*/
int getRed(){
return getPercentageValue("red");
}
int getRedMod(){
return getPercentageValue("redMod");
}
int getRedOff(){
return getPercentageValue("redOff");
}
/**
* specifies the input color with the specific green component, but with the red and blue color
* components unchanged
*
* @return the value of the green component specified as a
* percentage with 0% indicating minimal blue and 100% indicating maximum
* or -1 if the value is not set
*/
int getGreen(){
return getPercentageValue("green");
}
int getGreenMod(){
return getPercentageValue("greenMod");
}
int getGreenOff(){
return getPercentageValue("greenOff");
}
/**
* specifies the input color with the specific blue component, but with the red and green color
* components unchanged
*
* @return the value of the blue component specified as a
* percentage with 0% indicating minimal blue and 100% indicating maximum
* or -1 if the value is not set
*/
int getBlue(){
return getPercentageValue("blue");
}
int getBlueMod(){
return getPercentageValue("blueMod");
}
int getBlueOff(){
return getPercentageValue("blueOff");
}
/**
* specifies a darker version of its input color.
* A 10% shade is 10% of the input color combined with 90% black.
*
* @return the value of the shade specified as a
* percentage with 0% indicating minimal shade and 100% indicating maximum
* or -1 if the value is not set
*/
int getShade(){
return getPercentageValue("shade");
}
/**
* specifies a lighter version of its input color.
* A 10% tint is 10% of the input color combined with 90% white.
*
* @return the value of the tint specified as a
* percentage with 0% indicating minimal tint and 100% indicating maximum
* or -1 if the value is not set
*/
int getTint(){
return getPercentageValue("tint");
}
/**
* Apply lumMod / lumOff adjustments
*
* @param c the color to modify
* @param lumMod luminance modulation in the range [0..100]
* @param lumOff luminance offset in the range [0..100]
* @return modified color
*/
private static Color modulateLuminanace(Color c, int lumMod, int lumOff) {
Color color;
if (lumOff > 0) {
color = new Color(
(int) (Math.round((255 - c.getRed()) * (100.0 - lumMod) / 100.0 + c.getRed())),
(int) (Math.round((255 - c.getGreen()) * lumOff / 100.0 + c.getGreen())),
(int) (Math.round((255 - c.getBlue()) * lumOff / 100.0 + c.getBlue())),
c.getAlpha()
);
} else {
color = new Color(
(int) (Math.round(c.getRed() * lumMod / 100.0)),
(int) (Math.round(c.getGreen() * lumMod / 100.0)),
(int) (Math.round(c.getBlue() * lumMod / 100.0)),
c.getAlpha()
);
}
return color;
}
/**
* This algorithm returns result different from PowerPoint.
* TODO: revisit and improve
*/
private static Color shade(Color c, int shade) {
return new Color(
(int)(c.getRed() * shade * 0.01),
(int)(c.getGreen() * shade * 0.01),
(int)(c.getBlue() * shade * 0.01),
c.getAlpha());
}
/**
* This algorithm returns result different from PowerPoint.
* TODO: revisit and improve
*/
private static Color tint(Color c, int tint) {
int r = c.getRed();
int g = c.getGreen();
int b = c.getBlue();
float ftint = tint / 100.0f;
int red = Math.round(ftint * r + (1 - ftint) * 255);
int green = Math.round(ftint * g + (1 - ftint) * 255);
int blue = Math.round(ftint * b + (1 - ftint) * 255);
return new Color(red, green, blue);
}
/**
* Preset colors defined in DrawingML
*/
static final Map presetColors;
static {
presetColors = new HashMap();
presetColors.put("aliceBlue", new Color(240, 248, 255));
presetColors.put("antiqueWhite", new Color(250, 235, 215));
presetColors.put("aqua", new Color(0, 255, 255));
presetColors.put("aquamarine", new Color(127, 255, 212));
presetColors.put("azure", new Color(240, 255, 255));
presetColors.put("beige", new Color(245, 245, 220));
presetColors.put("bisque", new Color(255, 228, 196));
presetColors.put("black", new Color(0, 0, 0));
presetColors.put("blanchedAlmond", new Color(255, 235, 205));
presetColors.put("blue", new Color(0, 0, 255));
presetColors.put("blueViolet", new Color(138, 43, 226));
presetColors.put("brown", new Color(165, 42, 42));
presetColors.put("burlyWood", new Color(222, 184, 135));
presetColors.put("cadetBlue", new Color(95, 158, 160));
presetColors.put("chartreuse", new Color(127, 255, 0));
presetColors.put("chocolate", new Color(210, 105, 30));
presetColors.put("coral", new Color(255, 127, 80));
presetColors.put("cornflowerBlue", new Color(100, 149, 237));
presetColors.put("crimson", new Color(220, 20, 60));
presetColors.put("cyan", new Color(0, 255, 255));
presetColors.put("deepPink", new Color(255, 20, 147));
presetColors.put("deepSkyBlue", new Color(0, 191, 255));
presetColors.put("dimGray", new Color(105, 105, 105));
presetColors.put("dkBlue", new Color(0, 0, 139));
presetColors.put("dkCyan", new Color(0, 139, 139));
presetColors.put("dkGoldenrod", new Color(184, 134, 11));
presetColors.put("dkGray", new Color(169, 169, 169));
presetColors.put("dkGreen", new Color(0, 100, 0));
presetColors.put("dkKhaki", new Color(189, 183, 107));
presetColors.put("dkMagenta", new Color(139, 0, 139));
presetColors.put("dkOliveGreen", new Color(85, 107, 47));
presetColors.put("dkOrange", new Color(255, 140, 0));
presetColors.put("dkOrchid", new Color(153, 50, 204));
presetColors.put("dkRed", new Color(139, 0, 0));
presetColors.put("dkSalmon", new Color(233, 150, 122));
presetColors.put("dkSeaGreen", new Color(143, 188, 139));
presetColors.put("dkSlateBlue", new Color(72, 61, 139));
presetColors.put("dkSlateGray", new Color(47, 79, 79));
presetColors.put("dkTurquoise", new Color(0, 206, 209));
presetColors.put("dkViolet", new Color(148, 0, 211));
presetColors.put("dodgerBlue", new Color(30, 144, 255));
presetColors.put("firebrick", new Color(178, 34, 34));
presetColors.put("floralWhite", new Color(255, 250, 240));
presetColors.put("forestGreen", new Color(34, 139, 34));
presetColors.put("fuchsia", new Color(255, 0, 255));
presetColors.put("gainsboro", new Color(220, 220, 220));
presetColors.put("ghostWhite", new Color(248, 248, 255));
presetColors.put("gold", new Color(255, 215, 0));
presetColors.put("goldenrod", new Color(218, 165, 32));
presetColors.put("gray", new Color(128, 128, 128));
presetColors.put("green", new Color(0, 128, 0));
presetColors.put("greenYellow", new Color(173, 255, 47));
presetColors.put("honeydew", new Color(240, 255, 240));
presetColors.put("hotPink", new Color(255, 105, 180));
presetColors.put("indianRed", new Color(205, 92, 92));
presetColors.put("indigo", new Color(75, 0, 130));
presetColors.put("ivory", new Color(255, 255, 240));
presetColors.put("khaki", new Color(240, 230, 140));
presetColors.put("lavender", new Color(230, 230, 250));
presetColors.put("lavenderBlush", new Color(255, 240, 245));
presetColors.put("lawnGreen", new Color(124, 252, 0));
presetColors.put("lemonChiffon", new Color(255, 250, 205));
presetColors.put("lime", new Color(0, 255, 0));
presetColors.put("limeGreen", new Color(50, 205, 50));
presetColors.put("linen", new Color(250, 240, 230));
presetColors.put("ltBlue", new Color(173, 216, 230));
presetColors.put("ltCoral", new Color(240, 128, 128));
presetColors.put("ltCyan", new Color(224, 255, 255));
presetColors.put("ltGoldenrodYellow", new Color(250, 250, 120));
presetColors.put("ltGray", new Color(211, 211, 211));
presetColors.put("ltGreen", new Color(144, 238, 144));
presetColors.put("ltPink", new Color(255, 182, 193));
presetColors.put("ltSalmon", new Color(255, 160, 122));
presetColors.put("ltSeaGreen", new Color(32, 178, 170));
presetColors.put("ltSkyBlue", new Color(135, 206, 250));
presetColors.put("ltSlateGray", new Color(119, 136, 153));
presetColors.put("ltSteelBlue", new Color(176, 196, 222));
presetColors.put("ltYellow", new Color(255, 255, 224));
presetColors.put("magenta", new Color(255, 0, 255));
presetColors.put("maroon", new Color(128, 0, 0));
presetColors.put("medAquamarine", new Color(102, 205, 170));
presetColors.put("medBlue", new Color(0, 0, 205));
presetColors.put("medOrchid", new Color(186, 85, 211));
presetColors.put("medPurple", new Color(147, 112, 219));
presetColors.put("medSeaGreen", new Color(60, 179, 113));
presetColors.put("medSlateBlue", new Color(123, 104, 238));
presetColors.put("medSpringGreen", new Color(0, 250, 154));
presetColors.put("medTurquoise", new Color(72, 209, 204));
presetColors.put("medVioletRed", new Color(199, 21, 133));
presetColors.put("midnightBlue", new Color(25, 25, 112));
presetColors.put("mintCream", new Color(245, 255, 250));
presetColors.put("mistyRose", new Color(255, 228, 225));
presetColors.put("moccasin", new Color(255, 228, 181));
presetColors.put("navajoWhite", new Color(255, 222, 173));
presetColors.put("navy", new Color(0, 0, 128));
presetColors.put("oldLace", new Color(253, 245, 230));
presetColors.put("olive", new Color(128, 128, 0));
presetColors.put("oliveDrab", new Color(107, 142, 35));
presetColors.put("orange", new Color(255, 165, 0));
presetColors.put("orangeRed", new Color(255, 69, 0));
presetColors.put("orchid", new Color(218, 112, 214));
presetColors.put("paleGoldenrod", new Color(238, 232, 170));
presetColors.put("paleGreen", new Color(152, 251, 152));
presetColors.put("paleTurquoise", new Color(175, 238, 238));
presetColors.put("paleVioletRed", new Color(219, 112, 147));
presetColors.put("papayaWhip", new Color(255, 239, 213));
presetColors.put("peachPuff", new Color(255, 218, 185));
presetColors.put("peru", new Color(205, 133, 63));
presetColors.put("pink", new Color(255, 192, 203));
presetColors.put("plum", new Color(221, 160, 221));
presetColors.put("powderBlue", new Color(176, 224, 230));
presetColors.put("purple", new Color(128, 0, 128));
presetColors.put("red", new Color(255, 0, 0));
presetColors.put("rosyBrown", new Color(188, 143, 143));
presetColors.put("royalBlue", new Color(65, 105, 225));
presetColors.put("saddleBrown", new Color(139, 69, 19));
presetColors.put("salmon", new Color(250, 128, 114));
presetColors.put("sandyBrown", new Color(244, 164, 96));
presetColors.put("seaGreen", new Color(46, 139, 87));
presetColors.put("seaShell", new Color(255, 245, 238));
presetColors.put("sienna", new Color(160, 82, 45));
presetColors.put("silver", new Color(192, 192, 192));
presetColors.put("skyBlue", new Color(135, 206, 235));
presetColors.put("slateBlue", new Color(106, 90, 205));
presetColors.put("slateGray", new Color(112, 128, 144));
presetColors.put("snow", new Color(255, 250, 250));
presetColors.put("springGreen", new Color(0, 255, 127));
presetColors.put("steelBlue", new Color(70, 130, 180));
presetColors.put("tan", new Color(210, 180, 140));
presetColors.put("teal", new Color(0, 128, 128));
presetColors.put("thistle", new Color(216, 191, 216));
presetColors.put("tomato", new Color(255, 99, 71));
presetColors.put("turquoise", new Color(64, 224, 208));
presetColors.put("violet", new Color(238, 130, 238));
presetColors.put("wheat", new Color(245, 222, 179));
presetColors.put("white", new Color(255, 255, 255));
presetColors.put("whiteSmoke", new Color(245, 245, 245));
presetColors.put("yellow", new Color(255, 255, 0));
presetColors.put("yellowGreen", new Color(154, 205, 50));
}
}
