Home | History | Annotate | Download | only in svg 
      1 /*
      2  * Copyright (C) 2014 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #include "core/svg/SVGPoint.h"
     34 
     35 #include "bindings/core/v8/ExceptionState.h"
     36 #include "core/dom/ExceptionCode.h"
     37 #include "core/svg/SVGAnimationElement.h"
     38 #include "core/svg/SVGParserUtilities.h"
     39 #include "platform/transforms/AffineTransform.h"
     40 #include "wtf/text/StringBuilder.h"
     41 #include "wtf/text/WTFString.h"
     42 
     43 namespace blink {
     44 
     45 SVGPoint::SVGPoint()
     46 {
     47 }
     48 
     49 SVGPoint::SVGPoint(const FloatPoint& point)
     50     : m_value(point)
     51 {
     52 }
     53 
     54 PassRefPtr<SVGPoint> SVGPoint::clone() const
     55 {
     56     return SVGPoint::create(m_value);
     57 }
     58 
     59 template<typename CharType>
     60 void SVGPoint::parse(const CharType*& ptr, const CharType* end, ExceptionState& exceptionState)
     61 {
     62     const CharType* start = ptr;
     63 
     64     skipOptionalSVGSpaces(ptr, end);
     65 
     66     float x = 0.0f;
     67     float y = 0.0f;
     68     bool valid = parseNumber(ptr, end, x) && parseNumber(ptr, end, y, DisallowWhitespace);
     69 
     70     if (!valid) {
     71         exceptionState.throwDOMException(SyntaxError, "Problem parsing point \"" + String(start, end - start) + "\"");
     72         return;
     73     }
     74 
     75     skipOptionalSVGSpaces(ptr, end);
     76     if (ptr < end) { // nothing should come after the last, fourth number
     77         exceptionState.throwDOMException(SyntaxError, "Problem parsing point \"" + String(start, end - start) + "\"");
     78         return;
     79     }
     80 
     81     m_value = FloatPoint(x, y);
     82 }
     83 
     84 FloatPoint SVGPoint::matrixTransform(const AffineTransform& transform) const
     85 {
     86     double newX, newY;
     87     transform.map(static_cast<double>(x()), static_cast<double>(y()), newX, newY);
     88     return FloatPoint::narrowPrecision(newX, newY);
     89 }
     90 
     91 void SVGPoint::setValueAsString(const String& string, ExceptionState& exceptionState)
     92 {
     93     if (string.isEmpty()) {
     94         m_value = FloatPoint(0.0f, 0.0f);
     95         return;
     96     }
     97 
     98     if (string.is8Bit()) {
     99         const LChar* ptr = string.characters8();
    100         const LChar* end = ptr + string.length();
    101         parse(ptr, end, exceptionState);
    102         return;
    103     }
    104 
    105     const UChar* ptr = string.characters16();
    106     const UChar* end = ptr + string.length();
    107     parse(ptr, end, exceptionState);
    108 }
    109 
    110 String SVGPoint::valueAsString() const
    111 {
    112     StringBuilder builder;
    113     builder.appendNumber(x());
    114     builder.append(' ');
    115     builder.appendNumber(y());
    116     return builder.toString();
    117 }
    118 
    119 void SVGPoint::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement*)
    120 {
    121     // SVGPoint is not animated by itself
    122     ASSERT_NOT_REACHED();
    123 }
    124 
    125 void SVGPoint::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> fromValue, PassRefPtr<SVGPropertyBase> toValue, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement*)
    126 {
    127     // SVGPoint is not animated by itself
    128     ASSERT_NOT_REACHED();
    129 }
    130 
    131 float SVGPoint::calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement* contextElement)
    132 {
    133     // SVGPoint is not animated by itself
    134     ASSERT_NOT_REACHED();
    135     return 0.0f;
    136 }
    137 
    138 }
    139