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| 1 | +// |
| 2 | +// Author: Yves Lafon <ylafon@w3.org> |
| 3 | +// |
| 4 | +// (c) COPYRIGHT MIT, ERCIM, Keio University, Beihang University 2018. |
| 5 | +// Please first read the full copyright statement in file COPYRIGHT.html |
| 6 | +// |
| 7 | +package org.w3c.css.values; |
| 8 | + |
| 9 | +import org.w3c.css.util.ApplContext; |
| 10 | +import org.w3c.css.util.InvalidParamException; |
| 11 | + |
| 12 | +import java.math.BigDecimal; |
| 13 | + |
| 14 | +public class LCH { |
| 15 | + String output = null; |
| 16 | + CssValue vl, vc, vh, alpha; |
| 17 | + boolean faSet = false; |
| 18 | + |
| 19 | + /** |
| 20 | + * Create a new HSL |
| 21 | + */ |
| 22 | + public LCH() { |
| 23 | + } |
| 24 | + |
| 25 | + public static final CssValue filterL(ApplContext ac, CssValue val) |
| 26 | + throws InvalidParamException { |
| 27 | + if (val.getRawType() == CssTypes.CSS_CALC) { |
| 28 | + // TODO add warning about uncheckability |
| 29 | + // might need to extend... |
| 30 | + } else { |
| 31 | + if (val.getType() == CssTypes.CSS_NUMBER) { |
| 32 | + CssCheckableValue v = val.getCheckableValue(); |
| 33 | + if (!v.isPositive()) { |
| 34 | + ac.getFrame().addWarning("out-of-range", val.toString()); |
| 35 | + CssNumber nb = new CssNumber(); |
| 36 | + nb.setIntValue(0); |
| 37 | + return nb; |
| 38 | + } |
| 39 | + if (val.getRawType() == CssTypes.CSS_NUMBER) { |
| 40 | + BigDecimal pp = ((CssNumber) val).value; |
| 41 | + if (pp.compareTo(HWB.s100) > 0) { |
| 42 | + ac.getFrame().addWarning("out-of-range", val.toString()); |
| 43 | + CssNumber nb = new CssNumber(); |
| 44 | + nb.setValue(HWB.s100); |
| 45 | + return nb; |
| 46 | + } |
| 47 | + } |
| 48 | + } |
| 49 | + } |
| 50 | + return val; |
| 51 | + } |
| 52 | + |
| 53 | + public static final CssValue filterC(ApplContext ac, CssValue val) |
| 54 | + throws InvalidParamException { |
| 55 | + if (val.getRawType() == CssTypes.CSS_CALC) { |
| 56 | + // TODO add warning about uncheckability |
| 57 | + // might need to extend... |
| 58 | + } else { |
| 59 | + if (val.getType() == CssTypes.CSS_NUMBER) { |
| 60 | + CssCheckableValue v = val.getCheckableValue(); |
| 61 | + if (!v.isPositive()) { |
| 62 | + ac.getFrame().addWarning("out-of-range", val.toString()); |
| 63 | + CssNumber nb = new CssNumber(); |
| 64 | + nb.setValue(BigDecimal.ZERO); |
| 65 | + return nb; |
| 66 | + } |
| 67 | + } |
| 68 | + } |
| 69 | + return val; |
| 70 | + } |
| 71 | + |
| 72 | + public static final CssValue filterH(ApplContext ac, CssValue val) |
| 73 | + throws InvalidParamException { |
| 74 | + if (val.getRawType() == CssTypes.CSS_CALC) { |
| 75 | + // TODO add warning about uncheckability |
| 76 | + // might need to extend... |
| 77 | + } else { |
| 78 | + if (val.getType() == CssTypes.CSS_NUMBER) { |
| 79 | + CssCheckableValue v = val.getCheckableValue(); |
| 80 | + if (!v.isPositive()) { |
| 81 | + ac.getFrame().addWarning("out-of-range", val.toString()); |
| 82 | + CssNumber nb = new CssNumber(); |
| 83 | + nb.setIntValue(0); |
| 84 | + return nb; |
| 85 | + } |
| 86 | + if (val.getRawType() == CssTypes.CSS_NUMBER) { |
| 87 | + BigDecimal pp = ((CssNumber) val).value; |
| 88 | + if (pp.compareTo(CssAngle.deg360) > 0) { |
| 89 | + ac.getFrame().addWarning("out-of-range", val.toString()); |
| 90 | + CssNumber nb = new CssNumber(); |
| 91 | + nb.setValue(CssAngle.deg360); |
| 92 | + return nb; |
| 93 | + } |
| 94 | + } |
| 95 | + } |
| 96 | + } |
| 97 | + return val; |
| 98 | + } |
| 99 | + |
| 100 | + public final void setL(ApplContext ac, CssValue val) |
| 101 | + throws InvalidParamException { |
| 102 | + output = null; |
| 103 | + vl = filterL(ac, val); |
| 104 | + |
| 105 | + } |
| 106 | + |
| 107 | + public final void setC(ApplContext ac, CssValue val) |
| 108 | + throws InvalidParamException { |
| 109 | + output = null; |
| 110 | + vc = filterC(ac, val); |
| 111 | + } |
| 112 | + |
| 113 | + public final void setH(ApplContext ac, CssValue val) |
| 114 | + throws InvalidParamException { |
| 115 | + output = null; |
| 116 | + vh = filterH(ac, val); |
| 117 | + } |
| 118 | + |
| 119 | + public final void setAlpha(ApplContext ac, CssValue val) |
| 120 | + throws InvalidParamException { |
| 121 | + output = null; |
| 122 | + faSet = true; |
| 123 | + alpha = RGBA.filterAlpha(ac, val); |
| 124 | + } |
| 125 | + |
| 126 | + |
| 127 | + /** |
| 128 | + * Returns a string representation of the object. |
| 129 | + */ |
| 130 | + public String toString() { |
| 131 | + if (output == null) { |
| 132 | + StringBuilder sb = new StringBuilder("lch("); |
| 133 | + sb.append(vl).append(" "); |
| 134 | + sb.append(vc).append(" "); |
| 135 | + sb.append(vh); |
| 136 | + if (faSet) { |
| 137 | + sb.append(", ").append(alpha); |
| 138 | + } |
| 139 | + sb.append(")"); |
| 140 | + output = sb.toString(); |
| 141 | + } |
| 142 | + return output; |
| 143 | + } |
| 144 | +} |
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