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Diffstat (limited to 'Source/WebCore/svg/SVGViewSpec.cpp')
-rw-r--r-- | Source/WebCore/svg/SVGViewSpec.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/Source/WebCore/svg/SVGViewSpec.cpp b/Source/WebCore/svg/SVGViewSpec.cpp new file mode 100644 index 0000000..7a0c2a9 --- /dev/null +++ b/Source/WebCore/svg/SVGViewSpec.cpp @@ -0,0 +1,168 @@ +/* + * Copyright (C) 2007, 2010 Rob Buis <buis@kde.org> + * + * 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" + +#if ENABLE(SVG) +#include "SVGViewSpec.h" + +#include "Document.h" +#include "SVGNames.h" +#include "SVGParserUtilities.h" +#include "SVGSVGElement.h" +#include "SVGTransformable.h" + +namespace WebCore { + +// Animated property definitions +DEFINE_ANIMATED_RECT(SVGViewSpec, SVGNames::viewBoxAttr, ViewBox, viewBox) +DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGViewSpec, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio) + +SVGViewSpec::SVGViewSpec(SVGElement* contextElement) + : m_contextElement(contextElement) +{ +} + +void SVGViewSpec::setTransform(const String& transform) +{ + SVGTransformable::parseTransformAttribute(m_transform, transform); +} + +void SVGViewSpec::setViewBoxString(const String& viewBoxStr) +{ + FloatRect viewBox; + const UChar* c = viewBoxStr.characters(); + const UChar* end = c + viewBoxStr.length(); + if (!parseViewBox(m_contextElement->document(), c, end, viewBox, false)) + return; + setViewBoxBaseValue(viewBox); +} + +void SVGViewSpec::setPreserveAspectRatioString(const String& preserve) +{ + SVGPreserveAspectRatio::parsePreserveAspectRatio(this, preserve); +} + +void SVGViewSpec::setViewTargetString(const String& viewTargetString) +{ + m_viewTargetString = viewTargetString; +} + +SVGElement* SVGViewSpec::viewTarget() const +{ + return static_cast<SVGElement*>(m_contextElement->document()->getElementById(m_viewTargetString)); +} + +static const UChar svgViewSpec[] = {'s', 'v', 'g', 'V', 'i', 'e', 'w'}; +static const UChar viewBoxSpec[] = {'v', 'i', 'e', 'w', 'B', 'o', 'x'}; +static const UChar preserveAspectRatioSpec[] = {'p', 'r', 'e', 's', 'e', 'r', 'v', 'e', 'A', 's', 'p', 'e', 'c', 't', 'R', 'a', 't', 'i', 'o'}; +static const UChar transformSpec[] = {'t', 'r', 'a', 'n', 's', 'f', 'o', 'r', 'm'}; +static const UChar zoomAndPanSpec[] = {'z', 'o', 'o', 'm', 'A', 'n', 'd', 'P', 'a', 'n'}; +static const UChar viewTargetSpec[] = {'v', 'i', 'e', 'w', 'T', 'a', 'r', 'g', 'e', 't'}; + +bool SVGViewSpec::parseViewSpec(const String& viewSpec) +{ + const UChar* currViewSpec = viewSpec.characters(); + const UChar* end = currViewSpec + viewSpec.length(); + + if (currViewSpec >= end) + return false; + + if (!skipString(currViewSpec, end, svgViewSpec, WTF_ARRAY_LENGTH(svgViewSpec))) + return false; + + if (currViewSpec >= end || *currViewSpec != '(') + return false; + currViewSpec++; + + while (currViewSpec < end && *currViewSpec != ')') { + if (*currViewSpec == 'v') { + if (skipString(currViewSpec, end, viewBoxSpec, WTF_ARRAY_LENGTH(viewBoxSpec))) { + if (currViewSpec >= end || *currViewSpec != '(') + return false; + currViewSpec++; + FloatRect viewBox; + if (!parseViewBox(m_contextElement->document(), currViewSpec, end, viewBox, false)) + return false; + setViewBoxBaseValue(viewBox); + if (currViewSpec >= end || *currViewSpec != ')') + return false; + currViewSpec++; + } else if (skipString(currViewSpec, end, viewTargetSpec, WTF_ARRAY_LENGTH(viewTargetSpec))) { + if (currViewSpec >= end || *currViewSpec != '(') + return false; + const UChar* viewTargetStart = ++currViewSpec; + while (currViewSpec < end && *currViewSpec != ')') + currViewSpec++; + if (currViewSpec >= end) + return false; + setViewTargetString(String(viewTargetStart, currViewSpec - viewTargetStart)); + currViewSpec++; + } else + return false; + } else if (*currViewSpec == 'z') { + if (!skipString(currViewSpec, end, zoomAndPanSpec, WTF_ARRAY_LENGTH(zoomAndPanSpec))) + return false; + if (currViewSpec >= end || *currViewSpec != '(') + return false; + currViewSpec++; + if (!parseZoomAndPan(currViewSpec, end)) + return false; + if (currViewSpec >= end || *currViewSpec != ')') + return false; + currViewSpec++; + } else if (*currViewSpec == 'p') { + if (!skipString(currViewSpec, end, preserveAspectRatioSpec, WTF_ARRAY_LENGTH(preserveAspectRatioSpec))) + return false; + if (currViewSpec >= end || *currViewSpec != '(') + return false; + currViewSpec++; + bool result = false; + setPreserveAspectRatioBaseValue(SVGPreserveAspectRatio::parsePreserveAspectRatio(currViewSpec, end, false, result)); + if (!result) + return false; + if (currViewSpec >= end || *currViewSpec != ')') + return false; + currViewSpec++; + } else if (*currViewSpec == 't') { + if (!skipString(currViewSpec, end, transformSpec, WTF_ARRAY_LENGTH(transformSpec))) + return false; + if (currViewSpec >= end || *currViewSpec != '(') + return false; + currViewSpec++; + SVGTransformable::parseTransformAttribute(m_transform, currViewSpec, end, SVGTransformable::DoNotClearList); + if (currViewSpec >= end || *currViewSpec != ')') + return false; + currViewSpec++; + } else + return false; + + if (currViewSpec < end && *currViewSpec == ';') + currViewSpec++; + } + + if (currViewSpec >= end || *currViewSpec != ')') + return false; + + return true; +} + +} + +#endif // ENABLE(SVG) |