| /* |
| Copyright (C) 2005 Apple Computer, Inc. |
| Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 2004, 2005 Rob Buis <buis@kde.org> |
| Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org> |
| |
| Based on khtml css code by: |
| Copyright(C) 1999-2003 Lars Knoll(knoll@kde.org) |
| (C) 2003 Apple Computer, Inc. |
| (C) 2004 Allan Sandfeld Jensen(kde@carewolf.com) |
| (C) 2004 Germain Garand(germain@ebooksfrance.org) |
| |
| This file is part of the KDE project |
| |
| 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 "CSSStyleSelector.h" |
| |
| #include "CSSPrimitiveValueMappings.h" |
| #include "CSSPropertyNames.h" |
| #include "CSSValueList.h" |
| #include "SVGColor.h" |
| #include "SVGNames.h" |
| #include "SVGPaint.h" |
| #include "SVGRenderStyle.h" |
| #include "SVGRenderStyleDefs.h" |
| #include "SVGStyledElement.h" |
| #include <stdlib.h> |
| #include <wtf/MathExtras.h> |
| |
| #define HANDLE_INHERIT(prop, Prop) \ |
| if (isInherit) \ |
| {\ |
| svgstyle->set##Prop(m_parentStyle->svgStyle()->prop());\ |
| return;\ |
| } |
| |
| #define HANDLE_INHERIT_AND_INITIAL(prop, Prop) \ |
| HANDLE_INHERIT(prop, Prop) \ |
| else if (isInitial) \ |
| svgstyle->set##Prop(SVGRenderStyle::initial##Prop()); |
| |
| #define HANDLE_INHERIT_COND(propID, prop, Prop) \ |
| if (id == propID) \ |
| {\ |
| svgstyle->set##Prop(m_parentStyle->svgStyle()->prop());\ |
| return;\ |
| } |
| |
| #define HANDLE_INITIAL_COND(propID, Prop) \ |
| if (id == propID) \ |
| {\ |
| svgstyle->set##Prop(SVGRenderStyle::initial##Prop());\ |
| return;\ |
| } |
| |
| #define HANDLE_INITIAL_COND_WITH_VALUE(propID, Prop, Value) \ |
| if (id == propID) { \ |
| svgstyle->set##Prop(SVGRenderStyle::initial##Value()); \ |
| return; \ |
| } |
| |
| namespace WebCore { |
| |
| static float roundToNearestGlyphOrientationAngle(float angle) |
| { |
| angle = fabsf(fmodf(angle, 360.0f)); |
| |
| if (angle <= 45.0f || angle > 315.0f) |
| return 0.0f; |
| else if (angle > 45.0f && angle <= 135.0f) |
| return 90.0f; |
| else if (angle > 135.0f && angle <= 225.0f) |
| return 180.0f; |
| |
| return 270.0f; |
| } |
| |
| static int angleToGlyphOrientation(float angle) |
| { |
| angle = roundToNearestGlyphOrientationAngle(angle); |
| |
| if (angle == 0.0f) |
| return GO_0DEG; |
| else if (angle == 90.0f) |
| return GO_90DEG; |
| else if (angle == 180.0f) |
| return GO_180DEG; |
| else if (angle == 270.0f) |
| return GO_270DEG; |
| |
| return -1; |
| } |
| |
| void CSSStyleSelector::applySVGProperty(int id, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = 0; |
| if (value->isPrimitiveValue()) |
| primitiveValue = static_cast<CSSPrimitiveValue*>(value); |
| |
| SVGRenderStyle* svgstyle = m_style->accessSVGStyle(); |
| unsigned short valueType = value->cssValueType(); |
| |
| bool isInherit = m_parentNode && valueType == CSSPrimitiveValue::CSS_INHERIT; |
| bool isInitial = valueType == CSSPrimitiveValue::CSS_INITIAL || (!m_parentNode && valueType == CSSPrimitiveValue::CSS_INHERIT); |
| |
| // What follows is a list that maps the CSS properties into their |
| // corresponding front-end RenderStyle values. Shorthands(e.g. border, |
| // background) occur in this list as well and are only hit when mapping |
| // "inherit" or "initial" into front-end values. |
| switch (id) |
| { |
| // ident only properties |
| case CSS_PROP_ALIGNMENT_BASELINE: |
| { |
| HANDLE_INHERIT_AND_INITIAL(alignmentBaseline, AlignmentBaseline) |
| if (!primitiveValue) |
| break; |
| |
| svgstyle->setAlignmentBaseline(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_BASELINE_SHIFT: |
| { |
| HANDLE_INHERIT_AND_INITIAL(baselineShift, BaselineShift); |
| if (!primitiveValue) |
| break; |
| |
| if (primitiveValue->getIdent()) { |
| switch (primitiveValue->getIdent()) { |
| case CSS_VAL_BASELINE: |
| svgstyle->setBaselineShift(BS_BASELINE); |
| break; |
| case CSS_VAL_SUB: |
| svgstyle->setBaselineShift(BS_SUB); |
| break; |
| case CSS_VAL_SUPER: |
| svgstyle->setBaselineShift(BS_SUPER); |
| break; |
| default: |
| break; |
| } |
| } else { |
| svgstyle->setBaselineShift(BS_LENGTH); |
| svgstyle->setBaselineShiftValue(primitiveValue); |
| } |
| |
| break; |
| } |
| case CSS_PROP_KERNING: |
| { |
| if (isInherit) { |
| HANDLE_INHERIT_COND(CSS_PROP_KERNING, kerning, Kerning) |
| return; |
| } |
| else if (isInitial) { |
| HANDLE_INITIAL_COND_WITH_VALUE(CSS_PROP_KERNING, Kerning, Kerning) |
| return; |
| } |
| |
| svgstyle->setKerning(primitiveValue); |
| break; |
| } |
| case CSS_PROP_POINTER_EVENTS: |
| { |
| HANDLE_INHERIT_AND_INITIAL(pointerEvents, PointerEvents) |
| if (!primitiveValue) |
| break; |
| |
| svgstyle->setPointerEvents(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_DOMINANT_BASELINE: |
| { |
| HANDLE_INHERIT_AND_INITIAL(dominantBaseline, DominantBaseline) |
| if (primitiveValue) |
| svgstyle->setDominantBaseline(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_COLOR_INTERPOLATION: |
| { |
| HANDLE_INHERIT_AND_INITIAL(colorInterpolation, ColorInterpolation) |
| if (primitiveValue) |
| svgstyle->setColorInterpolation(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_COLOR_INTERPOLATION_FILTERS: |
| { |
| HANDLE_INHERIT_AND_INITIAL(colorInterpolationFilters, ColorInterpolationFilters) |
| if (primitiveValue) |
| svgstyle->setColorInterpolationFilters(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_COLOR_RENDERING: |
| { |
| HANDLE_INHERIT_AND_INITIAL(colorRendering, ColorRendering) |
| if (primitiveValue) |
| svgstyle->setColorRendering(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_CLIP_RULE: |
| { |
| HANDLE_INHERIT_AND_INITIAL(clipRule, ClipRule) |
| if (primitiveValue) |
| svgstyle->setClipRule(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_FILL_RULE: |
| { |
| HANDLE_INHERIT_AND_INITIAL(fillRule, FillRule) |
| if (primitiveValue) |
| svgstyle->setFillRule(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_STROKE_LINEJOIN: |
| { |
| HANDLE_INHERIT_AND_INITIAL(joinStyle, JoinStyle) |
| if (primitiveValue) |
| svgstyle->setJoinStyle(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_IMAGE_RENDERING: |
| { |
| HANDLE_INHERIT_AND_INITIAL(imageRendering, ImageRendering) |
| if (primitiveValue) |
| svgstyle->setImageRendering(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_SHAPE_RENDERING: |
| { |
| HANDLE_INHERIT_AND_INITIAL(shapeRendering, ShapeRendering) |
| if (primitiveValue) |
| svgstyle->setShapeRendering(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_TEXT_RENDERING: |
| { |
| HANDLE_INHERIT_AND_INITIAL(textRendering, TextRendering) |
| if (primitiveValue) |
| svgstyle->setTextRendering(*primitiveValue); |
| break; |
| } |
| // end of ident only properties |
| case CSS_PROP_FILL: |
| { |
| HANDLE_INHERIT_AND_INITIAL(fillPaint, FillPaint) |
| if (!primitiveValue && value) { |
| SVGPaint *paint = static_cast<SVGPaint*>(value); |
| if (paint) |
| svgstyle->setFillPaint(paint); |
| } |
| |
| break; |
| } |
| case CSS_PROP_STROKE: |
| { |
| HANDLE_INHERIT_AND_INITIAL(strokePaint, StrokePaint) |
| if (!primitiveValue && value) { |
| SVGPaint *paint = static_cast<SVGPaint*>(value); |
| if (paint) |
| svgstyle->setStrokePaint(paint); |
| } |
| |
| break; |
| } |
| case CSS_PROP_STROKE_WIDTH: |
| { |
| HANDLE_INHERIT_AND_INITIAL(strokeWidth, StrokeWidth) |
| if (!primitiveValue) |
| return; |
| |
| svgstyle->setStrokeWidth(primitiveValue); |
| break; |
| } |
| case CSS_PROP_STROKE_DASHARRAY: |
| { |
| HANDLE_INHERIT_AND_INITIAL(strokeDashArray, StrokeDashArray) |
| if (!primitiveValue && value) { |
| CSSValueList* dashes = static_cast<CSSValueList*>(value); |
| if (dashes) |
| svgstyle->setStrokeDashArray(dashes); |
| } |
| |
| break; |
| } |
| case CSS_PROP_STROKE_DASHOFFSET: |
| { |
| HANDLE_INHERIT_AND_INITIAL(strokeDashOffset, StrokeDashOffset) |
| if (!primitiveValue) |
| return; |
| |
| svgstyle->setStrokeDashOffset(primitiveValue); |
| break; |
| } |
| case CSS_PROP_FILL_OPACITY: |
| { |
| HANDLE_INHERIT_AND_INITIAL(fillOpacity, FillOpacity) |
| if (!primitiveValue) |
| return; |
| |
| float f = 0.0f; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_PERCENTAGE) |
| f = primitiveValue->getFloatValue() / 100.0f; |
| else if (type == CSSPrimitiveValue::CSS_NUMBER) |
| f = primitiveValue->getFloatValue(); |
| else |
| return; |
| |
| svgstyle->setFillOpacity(f); |
| break; |
| } |
| case CSS_PROP_STROKE_OPACITY: |
| { |
| HANDLE_INHERIT_AND_INITIAL(strokeOpacity, StrokeOpacity) |
| if (!primitiveValue) |
| return; |
| |
| float f = 0.0f; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_PERCENTAGE) |
| f = primitiveValue->getFloatValue() / 100.0f; |
| else if (type == CSSPrimitiveValue::CSS_NUMBER) |
| f = primitiveValue->getFloatValue(); |
| else |
| return; |
| |
| svgstyle->setStrokeOpacity(f); |
| break; |
| } |
| case CSS_PROP_STOP_OPACITY: |
| { |
| HANDLE_INHERIT_AND_INITIAL(stopOpacity, StopOpacity) |
| if (!primitiveValue) |
| return; |
| |
| float f = 0.0f; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_PERCENTAGE) |
| f = primitiveValue->getFloatValue() / 100.0f; |
| else if (type == CSSPrimitiveValue::CSS_NUMBER) |
| f = primitiveValue->getFloatValue(); |
| else |
| return; |
| |
| svgstyle->setStopOpacity(f); |
| break; |
| } |
| case CSS_PROP_MARKER_START: |
| { |
| HANDLE_INHERIT_AND_INITIAL(startMarker, StartMarker) |
| if (!primitiveValue) |
| return; |
| |
| String s; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_URI) |
| s = primitiveValue->getStringValue(); |
| else |
| return; |
| |
| svgstyle->setStartMarker(s); |
| break; |
| } |
| case CSS_PROP_MARKER_MID: |
| { |
| HANDLE_INHERIT_AND_INITIAL(midMarker, MidMarker) |
| if (!primitiveValue) |
| return; |
| |
| String s; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_URI) |
| s = primitiveValue->getStringValue(); |
| else |
| return; |
| |
| svgstyle->setMidMarker(s); |
| break; |
| } |
| case CSS_PROP_MARKER_END: |
| { |
| HANDLE_INHERIT_AND_INITIAL(endMarker, EndMarker) |
| if (!primitiveValue) |
| return; |
| |
| String s; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_URI) |
| s = primitiveValue->getStringValue(); |
| else |
| return; |
| |
| svgstyle->setEndMarker(s); |
| break; |
| } |
| case CSS_PROP_STROKE_LINECAP: |
| { |
| HANDLE_INHERIT_AND_INITIAL(capStyle, CapStyle) |
| if (primitiveValue) |
| svgstyle->setCapStyle(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_STROKE_MITERLIMIT: |
| { |
| HANDLE_INHERIT_AND_INITIAL(strokeMiterLimit, StrokeMiterLimit) |
| if (!primitiveValue) |
| return; |
| |
| float f = 0.0f; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_NUMBER) |
| f = primitiveValue->getFloatValue(); |
| else |
| return; |
| |
| svgstyle->setStrokeMiterLimit(f); |
| break; |
| } |
| case CSS_PROP_FILTER: |
| { |
| HANDLE_INHERIT_AND_INITIAL(filter, Filter) |
| if (!primitiveValue) |
| return; |
| |
| String s; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_URI) |
| s = primitiveValue->getStringValue(); |
| else |
| return; |
| svgstyle->setFilter(s); |
| break; |
| } |
| case CSS_PROP_MASK: |
| { |
| HANDLE_INHERIT_AND_INITIAL(maskElement, MaskElement) |
| if (!primitiveValue) |
| return; |
| |
| String s; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_URI) |
| s = primitiveValue->getStringValue(); |
| else |
| return; |
| |
| svgstyle->setMaskElement(s); |
| break; |
| } |
| case CSS_PROP_CLIP_PATH: |
| { |
| HANDLE_INHERIT_AND_INITIAL(clipPath, ClipPath) |
| if (!primitiveValue) |
| return; |
| |
| String s; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_URI) |
| s = primitiveValue->getStringValue(); |
| else |
| return; |
| |
| svgstyle->setClipPath(s); |
| break; |
| } |
| case CSS_PROP_TEXT_ANCHOR: |
| { |
| HANDLE_INHERIT_AND_INITIAL(textAnchor, TextAnchor) |
| if (primitiveValue) |
| svgstyle->setTextAnchor(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_WRITING_MODE: |
| { |
| HANDLE_INHERIT_AND_INITIAL(writingMode, WritingMode) |
| if (primitiveValue) |
| svgstyle->setWritingMode(*primitiveValue); |
| break; |
| } |
| case CSS_PROP_STOP_COLOR: |
| { |
| HANDLE_INHERIT_AND_INITIAL(stopColor, StopColor); |
| |
| SVGColor* c = static_cast<SVGColor*>(value); |
| if (!c) |
| return CSSStyleSelector::applyProperty(id, value); |
| |
| Color col; |
| if (c->colorType() == SVGColor::SVG_COLORTYPE_CURRENTCOLOR) |
| col = m_style->color(); |
| else |
| col = c->color(); |
| |
| svgstyle->setStopColor(col); |
| break; |
| } |
| case CSS_PROP_LIGHTING_COLOR: |
| { |
| HANDLE_INHERIT_AND_INITIAL(lightingColor, LightingColor); |
| |
| SVGColor* c = static_cast<SVGColor*>(value); |
| if (!c) |
| return CSSStyleSelector::applyProperty(id, value); |
| |
| Color col; |
| if (c->colorType() == SVGColor::SVG_COLORTYPE_CURRENTCOLOR) |
| col = m_style->color(); |
| else |
| col = c->color(); |
| |
| svgstyle->setLightingColor(col); |
| break; |
| } |
| case CSS_PROP_FLOOD_OPACITY: |
| { |
| HANDLE_INHERIT_AND_INITIAL(floodOpacity, FloodOpacity) |
| if (!primitiveValue) |
| return; |
| |
| float f = 0.0f; |
| int type = primitiveValue->primitiveType(); |
| if (type == CSSPrimitiveValue::CSS_PERCENTAGE) |
| f = primitiveValue->getFloatValue() / 100.0f; |
| else if (type == CSSPrimitiveValue::CSS_NUMBER) |
| f = primitiveValue->getFloatValue(); |
| else |
| return; |
| |
| svgstyle->setFloodOpacity(f); |
| break; |
| } |
| case CSS_PROP_FLOOD_COLOR: |
| { |
| Color col; |
| if (isInitial) |
| col = SVGRenderStyle::initialFloodColor(); |
| else { |
| SVGColor *c = static_cast<SVGColor*>(value); |
| if (!c) |
| return CSSStyleSelector::applyProperty(id, value); |
| |
| if (c->colorType() == SVGColor::SVG_COLORTYPE_CURRENTCOLOR) |
| col = m_style->color(); |
| else |
| col = c->color(); |
| } |
| |
| svgstyle->setFloodColor(col); |
| break; |
| } |
| case CSS_PROP_GLYPH_ORIENTATION_HORIZONTAL: |
| { |
| HANDLE_INHERIT_AND_INITIAL(glyphOrientationHorizontal, GlyphOrientationHorizontal) |
| if (!primitiveValue) |
| return; |
| |
| if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_DEG) { |
| int orientation = angleToGlyphOrientation(primitiveValue->getFloatValue()); |
| ASSERT(orientation != -1); |
| |
| svgstyle->setGlyphOrientationHorizontal((EGlyphOrientation) orientation); |
| } |
| |
| break; |
| } |
| case CSS_PROP_GLYPH_ORIENTATION_VERTICAL: |
| { |
| HANDLE_INHERIT_AND_INITIAL(glyphOrientationVertical, GlyphOrientationVertical) |
| if (!primitiveValue) |
| return; |
| |
| if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_DEG) { |
| int orientation = angleToGlyphOrientation(primitiveValue->getFloatValue()); |
| ASSERT(orientation != -1); |
| |
| svgstyle->setGlyphOrientationVertical((EGlyphOrientation) orientation); |
| } else if (primitiveValue->getIdent() == CSS_VAL_AUTO) |
| svgstyle->setGlyphOrientationVertical(GO_AUTO); |
| |
| break; |
| } |
| case CSS_PROP_ENABLE_BACKGROUND: |
| // Silently ignoring this property for now |
| // http://bugs.webkit.org/show_bug.cgi?id=6022 |
| break; |
| default: |
| // If you crash here, it's because you added a css property and are not handling it |
| // in either this switch statement or the one in CSSStyleSelector::applyProperty |
| ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", id); |
| return; |
| } |
| } |
| |
| } |
| |
| // vim:ts=4:noet |
| #endif // ENABLE(SVG) |
