Remove SVGLocatable and SVGTransformable

Source/core/svg/SVGParserUtilities.cpp

 /*
  * Copyright (C) 2002, 2003 The Karbon Developers
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007, 2009, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/svg/SVGParserUtilities.h"
 
 #include "core/dom/Document.h"
 #include "core/svg/SVGPointList.h"
+#include "core/svg/SVGTransformList.h"
 #include "platform/geometry/FloatRect.h"
+#include "platform/transforms/AffineTransform.h"
 #include "wtf/ASCIICType.h"
 #include <limits>
 
 namespace WebCore {
 
 template <typename FloatType>
 static inline bool isValidRange(const FloatType& x)
 {
     static const FloatType max = std::numeric_limits<FloatType>::max();
     return x >= -max && x <= max;
@@ skipping 513 matching lines @@
         return false;
     point1 = FloatPoint(x1, y1);
     point2 = FloatPoint(x2, y2);
     point3 = FloatPoint(x3, y3);
     return true;
 }
 
 template bool parseFloatPoint3(const LChar*& current, const LChar* end, FloatPoint& point1, FloatPoint& point2, FloatPoint& point3);
 template bool parseFloatPoint3(const UChar*& current, const UChar* end, FloatPoint& point1, FloatPoint& point2, FloatPoint& point3);
 
-}
+template<typename CharType>
+static int parseTransformParamList(const CharType*& ptr, const CharType* end, float* values, int required, int optional)
+{
+    int optionalParams = 0, requiredParams = 0;
+
+    if (!skipOptionalSVGSpaces(ptr, end) || *ptr != '(')
+        return -1;
+
+    ptr++;
+
+    skipOptionalSVGSpaces(ptr, end);
+
+    while (requiredParams < required) {
+        if (ptr >= end || !parseNumber(ptr, end, values[requiredParams], false))
+            return -1;
+        requiredParams++;
+        if (requiredParams < required)
+            skipOptionalSVGSpacesOrDelimiter(ptr, end);
+    }
+    if (!skipOptionalSVGSpaces(ptr, end))
+        return -1;
+
+    bool delimParsed = skipOptionalSVGSpacesOrDelimiter(ptr, end);
+
+    if (ptr >= end)
+        return -1;
+
+    if (*ptr == ')') { // skip optionals
+        ptr++;
+        if (delimParsed)
+            return -1;
+    } else {
+        while (optionalParams < optional) {
+            if (ptr >= end || !parseNumber(ptr, end, values[requiredParams + optionalParams], false))
+                return -1;
+            optionalParams++;
+            if (optionalParams < optional)
+                skipOptionalSVGSpacesOrDelimiter(ptr, end);
+        }
+
+        if (!skipOptionalSVGSpaces(ptr, end))
+            return -1;
+
+        delimParsed = skipOptionalSVGSpacesOrDelimiter(ptr, end);
+
+        if (ptr >= end || *ptr != ')' || delimParsed)
+            return -1;
+        ptr++;
+    }
+
+    return requiredParams + optionalParams;
+}
+
+// These should be kept in sync with enum SVGTransformType
+static const int requiredValuesForType[] =  {0, 6, 1, 1, 1, 1, 1};
+static const int optionalValuesForType[] =  {0, 0, 1, 1, 2, 0, 0};
+
+template<typename CharType>
+static bool parseTransformValueInternal(unsigned type, const CharType*& ptr, const CharType* end, SVGTransform& transform)
+{
+    if (type == SVGTransform::SVG_TRANSFORM_UNKNOWN)
+        return false;
+
+    int valueCount = 0;
+    float values[] = {0, 0, 0, 0, 0, 0};
+    if ((valueCount = parseTransformParamList(ptr, end, values, requiredValuesForType[type], optionalValuesForType[type])) < 0)
+        return false;
+
+    switch (type) {
+    case SVGTransform::SVG_TRANSFORM_SKEWX:
+        transform.setSkewX(values[0]);
+        break;
+    case SVGTransform::SVG_TRANSFORM_SKEWY:
+        transform.setSkewY(values[0]);
+        break;
+    case SVGTransform::SVG_TRANSFORM_SCALE:
+        if (valueCount == 1) // Spec: if only one param given, assume uniform scaling
+            transform.setScale(values[0], values[0]);
+        else
+            transform.setScale(values[0], values[1]);
+        break;
+    case SVGTransform::SVG_TRANSFORM_TRANSLATE:
+        if (valueCount == 1) // Spec: if only one param given, assume 2nd param to be 0
+            transform.setTranslate(values[0], 0);
+        else
+            transform.setTranslate(values[0], values[1]);
+        break;
+    case SVGTransform::SVG_TRANSFORM_ROTATE:
+        if (valueCount == 1)
+            transform.setRotate(values[0], 0, 0);
+        else
+            transform.setRotate(values[0], values[1], values[2]);
+        break;
+    case SVGTransform::SVG_TRANSFORM_MATRIX:
+        transform.setMatrix(AffineTransform(values[0], values[1], values[2], values[3], values[4], values[5]));
+        break;
+    }
+
+    return true;
+}
+
+bool parseTransformValue(unsigned type, const LChar*& ptr, const LChar* end, SVGTransform& transform)
+{
+    return parseTransformValueInternal(type, ptr, end, transform);
+}
+
+bool parseTransformValue(unsigned type, const UChar*& ptr, const UChar* end, SVGTransform& transform)
+{
+    return parseTransformValueInternal(type, ptr, end, transform);
+}
+
+static const LChar skewXDesc[] =  {'s', 'k', 'e', 'w', 'X'};
+static const LChar skewYDesc[] =  {'s', 'k', 'e', 'w', 'Y'};
+static const LChar scaleDesc[] =  {'s', 'c', 'a', 'l', 'e'};
+static const LChar translateDesc[] =  {'t', 'r', 'a', 'n', 's', 'l', 'a', 't', 'e'};
+static const LChar rotateDesc[] =  {'r', 'o', 't', 'a', 't', 'e'};
+static const LChar matrixDesc[] =  {'m', 'a', 't', 'r', 'i', 'x'};
+
+template<typename CharType>
+static inline bool parseAndSkipType(const CharType*& ptr, const CharType* end, unsigned short& type)
+{
+    if (ptr >= end)
+        return false;
+
+    if (*ptr == 's') {
+        if (skipString(ptr, end, skewXDesc, WTF_ARRAY_LENGTH(skewXDesc)))
+            type = SVGTransform::SVG_TRANSFORM_SKEWX;
+        else if (skipString(ptr, end, skewYDesc, WTF_ARRAY_LENGTH(skewYDesc)))
+            type = SVGTransform::SVG_TRANSFORM_SKEWY;
+        else if (skipString(ptr, end, scaleDesc, WTF_ARRAY_LENGTH(scaleDesc)))
+            type = SVGTransform::SVG_TRANSFORM_SCALE;
+        else
+            return false;
+    } else if (skipString(ptr, end, translateDesc, WTF_ARRAY_LENGTH(translateDesc)))
+        type = SVGTransform::SVG_TRANSFORM_TRANSLATE;
+    else if (skipString(ptr, end, rotateDesc, WTF_ARRAY_LENGTH(rotateDesc)))
+        type = SVGTransform::SVG_TRANSFORM_ROTATE;
+    else if (skipString(ptr, end, matrixDesc, WTF_ARRAY_LENGTH(matrixDesc)))
+        type = SVGTransform::SVG_TRANSFORM_MATRIX;
+    else
+        return false;
+
+    return true;
+}
+
+SVGTransform::SVGTransformType parseTransformType(const String& string)
+{
+    if (string.isEmpty())
+        return SVGTransform::SVG_TRANSFORM_UNKNOWN;
+    unsigned short type = SVGTransform::SVG_TRANSFORM_UNKNOWN;
+    if (string.is8Bit()) {
+        const LChar* ptr = string.characters8();
+        const LChar* end = ptr + string.length();
+        parseAndSkipType(ptr, end, type);
+    } else {
+        const UChar* ptr = string.characters16();
+        const UChar* end = ptr + string.length();
+        parseAndSkipType(ptr, end, type);
+    }
+    return static_cast<SVGTransform::SVGTransformType>(type);
+}
+
+template<typename CharType>
+bool parseTransformAttributeInternal(SVGTransformList& list, const CharType*& ptr, const CharType* end, TransformParsingMode mode)
+{
+    if (mode == ClearList)
+        list.clear();
+
+    bool delimParsed = false;
+    while (ptr < end) {
+        delimParsed = false;
+        unsigned short type = SVGTransform::SVG_TRANSFORM_UNKNOWN;
+        skipOptionalSVGSpaces(ptr, end);
+
+        if (!parseAndSkipType(ptr, end, type))
+            return false;
+
+        SVGTransform transform;
+        if (!parseTransformValue(type, ptr, end, transform))
+            return false;
+
+        list.append(transform);
+        skipOptionalSVGSpaces(ptr, end);
+        if (ptr < end && *ptr == ',') {
+            delimParsed = true;
+            ++ptr;
+        }
+        skipOptionalSVGSpaces(ptr, end);
+    }
+
+    return !delimParsed;
+}
+
+bool parseTransformAttribute(SVGTransformList& list, const LChar*& ptr, const LChar* end, TransformParsingMode mode)
+{
+    return parseTransformAttributeInternal(list, ptr, end, mode);
+}
+
+bool parseTransformAttribute(SVGTransformList& list, const UChar*& ptr, const UChar* end, TransformParsingMode mode)
+{
+    return parseTransformAttributeInternal(list, ptr, end, mode);
+}
+
+}