| /* |
| * 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.weex.utils; |
| |
| import android.graphics.Color; |
| import android.graphics.LinearGradient; |
| import android.graphics.Shader; |
| import android.support.annotation.NonNull; |
| import android.text.TextUtils; |
| import android.util.Pair; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.StringTokenizer; |
| |
| /** |
| * Class for parse color |
| */ |
| public class WXResourceUtils { |
| |
| private final static Map<String, Integer> colorMap = new HashMap<>(); |
| private final static int RGB_SIZE = 3; |
| private final static int RGBA_SIZE = 4; |
| private final static int HEX = 16; |
| private final static int COLOR_RANGE = 255; |
| private final static String RGB = "rgb"; |
| private final static String RGBA = "rgba"; |
| private final static SingleFunctionParser.FlatMapper<Integer> FUNCTIONAL_RGB_MAPPER = |
| new SingleFunctionParser.FlatMapper<Integer>() { |
| @Override |
| public Integer map(String raw) { |
| int color = WXUtils.parseUnitOrPercent(raw, COLOR_RANGE); |
| if (color < 0) { |
| color = 0; |
| } else if (color > COLOR_RANGE) { |
| color = COLOR_RANGE; |
| } |
| return color; |
| } |
| }; |
| |
| private final static SingleFunctionParser.NonUniformMapper<Number> FUNCTIONAL_RGBA_MAPPER = |
| new SingleFunctionParser.NonUniformMapper<Number>() { |
| @Override |
| public List<Number> map(List<String> raw) { |
| List<Number> result = new ArrayList<>(RGBA_SIZE); |
| int i, color; |
| for (i = 0; i < RGB_SIZE; i++) { |
| color = WXUtils.parseUnitOrPercent(raw.get(i), COLOR_RANGE); |
| if (color < 0) { |
| color = 0; |
| } else if (color > COLOR_RANGE) { |
| color = COLOR_RANGE; |
| } |
| result.add(color); |
| } |
| result.add(Float.valueOf(raw.get(i))); |
| return result; |
| } |
| }; |
| |
| static { |
| colorMap.put("aliceblue", 0XFFF0F8FF); |
| colorMap.put("antiquewhite", 0XFFFAEBD7); |
| colorMap.put("aqua", 0XFF00FFFF); |
| colorMap.put("aquamarine", 0XFF7FFFD4); |
| colorMap.put("azure", 0XFFF0FFFF); |
| colorMap.put("beige", 0XFFF5F5DC); |
| colorMap.put("bisque", 0XFFFFE4C4); |
| colorMap.put("black", 0XFF000000); |
| colorMap.put("blanchedalmond", 0XFFFFEBCD); |
| colorMap.put("blue", 0XFF0000FF); |
| colorMap.put("blueviolet", 0XFF8A2BE2); |
| colorMap.put("brown", 0XFFA52A2A); |
| colorMap.put("burlywood", 0XFFDEB887); |
| colorMap.put("cadetblue", 0XFF5F9EA0); |
| colorMap.put("chartreuse", 0XFF7FFF00); |
| colorMap.put("chocolate", 0XFFD2691E); |
| colorMap.put("coral", 0XFFFF7F50); |
| colorMap.put("cornflowerblue", 0XFF6495ED); |
| colorMap.put("cornsilk", 0XFFFFF8DC); |
| colorMap.put("crimson", 0XFFDC143C); |
| colorMap.put("cyan", 0XFF00FFFF); |
| colorMap.put("darkblue", 0XFF00008B); |
| colorMap.put("darkcyan", 0XFF008B8B); |
| colorMap.put("darkgoldenrod", 0XFFB8860B); |
| colorMap.put("darkgray", 0XFFA9A9A9); |
| colorMap.put("darkgreen", 0XFF006400); |
| colorMap.put("darkkhaki", 0XFFBDB76B); |
| colorMap.put("darkmagenta", 0XFF8B008B); |
| colorMap.put("darkolivegreen", 0XFF556B2F); |
| colorMap.put("darkorange", 0XFFFF8C00); |
| colorMap.put("darkorchid", 0XFF9932CC); |
| colorMap.put("darkred", 0XFF8B0000); |
| colorMap.put("darksalmon", 0XFFE9967A); |
| colorMap.put("darkseagreen", 0XFF8FBC8F); |
| colorMap.put("darkslateblue", 0XFF483D8B); |
| colorMap.put("darkslategray", 0XFF2F4F4F); |
| colorMap.put("darkslategrey", 0XFF2F4F4F); |
| colorMap.put("darkturquoise", 0XFF00CED1); |
| colorMap.put("darkviolet", 0XFF9400D3); |
| colorMap.put("deeppink", 0XFFFF1493); |
| colorMap.put("deepskyblue", 0XFF00BFFF); |
| colorMap.put("dimgray", 0XFF696969); |
| colorMap.put("dimgrey", 0XFF696969); |
| colorMap.put("dodgerblue", 0XFF1E90FF); |
| colorMap.put("firebrick", 0XFFB22222); |
| colorMap.put("floralwhite", 0XFFFFFAF0); |
| colorMap.put("forestgreen", 0XFF228B22); |
| colorMap.put("fuchsia", 0XFFFF00FF); |
| colorMap.put("gainsboro", 0XFFDCDCDC); |
| colorMap.put("ghostwhite", 0XFFF8F8FF); |
| colorMap.put("gold", 0XFFFFD700); |
| colorMap.put("goldenrod", 0XFFDAA520); |
| colorMap.put("gray", 0XFF808080); |
| colorMap.put("grey", 0XFF808080); |
| colorMap.put("green", 0XFF008000); |
| colorMap.put("greenyellow", 0XFFADFF2F); |
| colorMap.put("honeydew", 0XFFF0FFF0); |
| colorMap.put("hotpink", 0XFFFF69B4); |
| colorMap.put("indianred", 0XFFCD5C5C); |
| colorMap.put("indigo", 0XFF4B0082); |
| colorMap.put("ivory", 0XFFFFFFF0); |
| colorMap.put("khaki", 0XFFF0E68C); |
| colorMap.put("lavender", 0XFFE6E6FA); |
| colorMap.put("lavenderblush", 0XFFFFF0F5); |
| colorMap.put("lawngreen", 0XFF7CFC00); |
| colorMap.put("lemonchiffon", 0XFFFFFACD); |
| colorMap.put("lightblue", 0XFFADD8E6); |
| colorMap.put("lightcoral", 0XFFF08080); |
| colorMap.put("lightcyan", 0XFFE0FFFF); |
| colorMap.put("lightgoldenrodyellow", 0XFFFAFAD2); |
| colorMap.put("lightgray", 0XFFD3D3D3); |
| colorMap.put("lightgrey", 0XFFD3D3D3); |
| colorMap.put("lightgreen", 0XFF90EE90); |
| colorMap.put("lightpink", 0XFFFFB6C1); |
| colorMap.put("lightsalmon", 0XFFFFA07A); |
| colorMap.put("lightseagreen", 0XFF20B2AA); |
| colorMap.put("lightskyblue", 0XFF87CEFA); |
| colorMap.put("lightslategray", 0XFF778899); |
| colorMap.put("lightslategrey", 0XFF778899); |
| colorMap.put("lightsteelblue", 0XFFB0C4DE); |
| colorMap.put("lightyellow", 0XFFFFFFE0); |
| colorMap.put("lime", 0XFF00FF00); |
| colorMap.put("limegreen", 0XFF32CD32); |
| colorMap.put("linen", 0XFFFAF0E6); |
| colorMap.put("magenta", 0XFFFF00FF); |
| colorMap.put("maroon", 0XFF800000); |
| colorMap.put("mediumaquamarine", 0XFF66CDAA); |
| colorMap.put("mediumblue", 0XFF0000CD); |
| colorMap.put("mediumorchid", 0XFFBA55D3); |
| colorMap.put("mediumpurple", 0XFF9370DB); |
| colorMap.put("mediumseagreen", 0XFF3CB371); |
| colorMap.put("mediumslateblue", 0XFF7B68EE); |
| colorMap.put("mediumspringgreen", 0XFF00FA9A); |
| colorMap.put("mediumturquoise", 0XFF48D1CC); |
| colorMap.put("mediumvioletred", 0XFFC71585); |
| colorMap.put("midnightblue", 0XFF191970); |
| colorMap.put("mintcream", 0XFFF5FFFA); |
| colorMap.put("mistyrose", 0XFFFFE4E1); |
| colorMap.put("moccasin", 0XFFFFE4B5); |
| colorMap.put("navajowhite", 0XFFFFDEAD); |
| colorMap.put("navy", 0XFF000080); |
| colorMap.put("oldlace", 0XFFFDF5E6); |
| colorMap.put("olive", 0XFF808000); |
| colorMap.put("olivedrab", 0XFF6B8E23); |
| colorMap.put("orange", 0XFFFFA500); |
| colorMap.put("orangered", 0XFFFF4500); |
| colorMap.put("orchid", 0XFFDA70D6); |
| colorMap.put("palegoldenrod", 0XFFEEE8AA); |
| colorMap.put("palegreen", 0XFF98FB98); |
| colorMap.put("paleturquoise", 0XFFAFEEEE); |
| colorMap.put("palevioletred", 0XFFDB7093); |
| colorMap.put("papayawhip", 0XFFFFEFD5); |
| colorMap.put("peachpuff", 0XFFFFDAB9); |
| colorMap.put("peru", 0XFFCD853F); |
| colorMap.put("pink", 0XFFFFC0CB); |
| colorMap.put("plum", 0XFFDDA0DD); |
| colorMap.put("powderblue", 0XFFB0E0E6); |
| colorMap.put("purple", 0XFF800080); |
| colorMap.put("rebeccapurple", 0XFF663399); |
| colorMap.put("red", 0XFFFF0000); |
| colorMap.put("rosybrown", 0XFFBC8F8F); |
| colorMap.put("royalblue", 0XFF4169E1); |
| colorMap.put("saddlebrown", 0XFF8B4513); |
| colorMap.put("salmon", 0XFFFA8072); |
| colorMap.put("sandybrown", 0XFFF4A460); |
| colorMap.put("seagreen", 0XFF2E8B57); |
| colorMap.put("seashell", 0XFFFFF5EE); |
| colorMap.put("sienna", 0XFFA0522D); |
| colorMap.put("silver", 0XFFC0C0C0); |
| colorMap.put("skyblue", 0XFF87CEEB); |
| colorMap.put("slateblue", 0XFF6A5ACD); |
| colorMap.put("slategray", 0XFF708090); |
| colorMap.put("slategrey", 0XFF708090); |
| colorMap.put("snow", 0XFFFFFAFA); |
| colorMap.put("springgreen", 0XFF00FF7F); |
| colorMap.put("steelblue", 0XFF4682B4); |
| colorMap.put("tan", 0XFFD2B48C); |
| colorMap.put("teal", 0XFF008080); |
| colorMap.put("thistle", 0XFFD8BFD8); |
| colorMap.put("tomato", 0XFFFF6347); |
| colorMap.put("turquoise", 0XFF40E0D0); |
| colorMap.put("violet", 0XFFEE82EE); |
| colorMap.put("wheat", 0XFFF5DEB3); |
| colorMap.put("white", 0XFFFFFFFF); |
| colorMap.put("whitesmoke", 0XFFF5F5F5); |
| colorMap.put("yellow", 0XFFFFFF00); |
| colorMap.put("yellowgreen", 0XFF9ACD32); |
| colorMap.put("transparent", 0x00000000); |
| } |
| |
| public static int getColor(String color) { |
| return getColor(color, Integer.MIN_VALUE); |
| } |
| |
| public static int getColor(String color, int defaultColor) { |
| if (TextUtils.isEmpty(color)) { |
| return defaultColor; |
| } |
| color = color.trim(); //remove non visible codes |
| |
| Integer cache = WXUtils.sCache.get(color); |
| if(cache!=null){ |
| return cache; |
| } |
| else { |
| int resultColor = defaultColor; |
| Pair<Boolean, Integer> result; |
| ColorConvertHandler[] handlers = ColorConvertHandler.values(); |
| for (ColorConvertHandler handler : handlers) { |
| try { |
| result = handler.handle(color); |
| if (result.first) { |
| resultColor = result.second; |
| WXUtils.sCache.put(color, resultColor); |
| break; |
| } |
| } catch (RuntimeException e) { |
| WXLogUtils.v("Color_Parser", WXLogUtils.getStackTrace(e)); |
| } |
| } |
| return resultColor; |
| } |
| } |
| |
| /** |
| * Assembly gradients |
| * @param image gradient values contains direction、colors |
| * @param width component width |
| * @param height component height |
| * @return gradient shader |
| */ |
| public static Shader getShader(String image, float width, float height) { |
| List<String> valueList = parseGradientValues(image); |
| if (valueList != null && valueList.size() == 3) { |
| float[] points = parseGradientDirection(valueList.get(0), width, height); |
| Shader shader = new LinearGradient(points[0], points[1], |
| points[2], points[3], |
| getColor(valueList.get(1), Color.WHITE), getColor(valueList.get(2), Color.WHITE), |
| Shader.TileMode.CLAMP); |
| return shader; |
| } |
| return null; |
| } |
| |
| /** |
| * parse gradient values contains direction、colors |
| * @param image gradient values |
| * @return split values by comma |
| */ |
| @NonNull |
| private static List<String> parseGradientValues(String image) { |
| if (TextUtils.isEmpty(image)) { |
| return null; |
| } |
| image.trim(); |
| if(image.startsWith("linear-gradient")){ |
| String valueStr = image.substring(image.indexOf("(") + 1, image.lastIndexOf(")")); |
| StringTokenizer tokenizer = new StringTokenizer(valueStr, ","); |
| List<String> values = new ArrayList<>(); |
| String temp = null; |
| while (tokenizer.hasMoreTokens()) { |
| String token = tokenizer.nextToken(); |
| if (token.contains("(")) { |
| temp = token + ","; |
| continue; |
| } |
| if (token.contains(")")) { |
| temp += token; |
| values.add(temp); |
| temp = null; |
| continue; |
| } |
| if (temp != null) { |
| temp += (token + ","); |
| continue; |
| } |
| values.add(token); |
| } |
| return values; |
| } |
| return null; |
| } |
| |
| /** |
| * parse gradient direction |
| * @param direction gradient direction |
| * @param width component width |
| * @param height component height |
| * @return gradient points |
| */ |
| private static float[] parseGradientDirection(String direction, float width, float height) { |
| int x1 = 0, y1 = 1, x2 = 2, y2 = 3; |
| float[] points = {0, 0, 0, 0}; |
| |
| if (!TextUtils.isEmpty(direction)) { |
| direction = direction.replaceAll("\\s*", "").toLowerCase(Locale.ROOT); |
| } |
| |
| switch (direction) { |
| //to right |
| case "toright": |
| points[x2] = width; |
| break; |
| //to left |
| case "toleft": |
| points[x1] = width; |
| break; |
| //to bottom |
| case "tobottom": |
| points[y2] = height; |
| break; |
| //to top |
| case "totop": |
| points[y1] = height; |
| break; |
| //to bottom right |
| case "tobottomright": |
| points[x2] = width; |
| points[y2] = height; |
| break; |
| //to top left |
| case "totopleft": |
| points[x1] = width; |
| points[y1] = height; |
| break; |
| } |
| return points; |
| } |
| |
| public static boolean isNamedColor(String name) { |
| return colorMap.containsKey(name); |
| } |
| |
| enum ColorConvertHandler { |
| NAMED_COLOR_HANDLER { |
| @Override |
| @NonNull Pair<Boolean, Integer> handle(String rawColor) { |
| if (colorMap.containsKey(rawColor)) { |
| return new Pair<>(Boolean.TRUE, colorMap.get(rawColor)); |
| } else { |
| return new Pair<>(Boolean.FALSE, Color.TRANSPARENT); |
| } |
| } |
| }, |
| RGB_HANDLER { |
| @Override |
| @NonNull Pair<Boolean, Integer> handle(String rawColor) { |
| if (rawColor.length() == 4) { |
| //#eee, #333 |
| int r, g, b; |
| r = Integer.parseInt(rawColor.substring(1, 2), HEX); |
| g = Integer.parseInt(rawColor.substring(2, 3), HEX); |
| b = Integer.parseInt(rawColor.substring(3, 4), HEX); |
| return new Pair<>(Boolean.TRUE, Color.rgb(r + (r << 4), g + (g << 4), b + (b << 4))); |
| } else if (rawColor.length() == 7 || rawColor.length() == 9) { |
| //#eeeeee, #333333 |
| return new Pair<>(Boolean.TRUE, Color.parseColor(rawColor)); |
| } else { |
| return new Pair<>(Boolean.FALSE, Color.TRANSPARENT); |
| } |
| } |
| }, |
| FUNCTIONAL_RGB_HANDLER { |
| @Override |
| @NonNull Pair<Boolean, Integer> handle(String rawColor) { |
| SingleFunctionParser<Integer> functionParser = new SingleFunctionParser<>(rawColor, FUNCTIONAL_RGB_MAPPER); |
| List<Integer> rgb = functionParser.parse(RGB); |
| if (null != rgb && rgb.size() == RGB_SIZE) { |
| return new Pair<>(Boolean.TRUE, Color.rgb(rgb.get(0), rgb.get(1), rgb.get(2))); |
| } else { |
| return new Pair<>(Boolean.FALSE, Color.TRANSPARENT); |
| } |
| } |
| }, |
| |
| FUNCTIONAL_RGBA_HANDLER { |
| @Override |
| @NonNull Pair<Boolean, Integer> handle(String rawColor) { |
| SingleFunctionParser<Number> functionParser = new SingleFunctionParser<>(rawColor, FUNCTIONAL_RGBA_MAPPER); |
| List<Number> rgba = functionParser.parse(RGBA); |
| if (rgba.size() == RGBA_SIZE) { |
| return new Pair<>(Boolean.TRUE, Color.argb( |
| parseAlpha(rgba.get(3).floatValue()), |
| rgba.get(0).intValue(), |
| rgba.get(1).intValue(), |
| rgba.get(2).intValue())); |
| } else { |
| return new Pair<>(Boolean.FALSE, Color.TRANSPARENT); |
| } |
| } |
| }; |
| |
| /** |
| * Parse color to #RRGGBB or #AARRGGBB. The parsing algorithm depends on sub-class. |
| * |
| * @param rawColor color, maybe functional RGB(RGBA), #RGB, keywords color or transparent |
| * @return #RRGGBB or #AARRGGBB |
| */ |
| @NonNull abstract Pair<Boolean, Integer> handle(String rawColor); |
| |
| /** |
| * Parse alpha gradient of color from range 0-1 to range 0-255 |
| * |
| * @param alpha the alpha value, in range 0-1 |
| * @return the alpha value, in range 0-255 |
| */ |
| private static int parseAlpha(float alpha) { |
| return (int) (alpha * COLOR_RANGE); |
| } |
| } |
| } |