1 /* 2 Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 2004, 2005 Rob Buis <buis (at) kde.org> 4 5 Based on khtml code by: 6 Copyright (C) 1999 Antti Koivisto (koivisto (at) kde.org) 7 Copyright (C) 1999-2003 Lars Knoll (knoll (at) kde.org) 8 Copyright (C) 2002-2003 Dirk Mueller (mueller (at) kde.org) 9 Copyright (C) 2002 Apple Computer, Inc. 10 11 This library is free software; you can redistribute it and/or 12 modify it under the terms of the GNU Library General Public 13 License as published by the Free Software Foundation; either 14 version 2 of the License, or (at your option) any later version. 15 16 This library is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 Library General Public License for more details. 20 21 You should have received a copy of the GNU Library General Public License 22 along with this library; see the file COPYING.LIB. If not, write to 23 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 24 Boston, MA 02110-1301, USA. 25 */ 26 27 #include "config.h" 28 #if ENABLE(SVG) 29 #include "SVGRenderStyle.h" 30 31 #include "CSSPrimitiveValue.h" 32 #include "CSSValueList.h" 33 #include "IntRect.h" 34 #include "NodeRenderStyle.h" 35 #include "RenderObject.h" 36 #include "RenderStyle.h" 37 #include "SVGStyledElement.h" 38 39 using namespace std; 40 41 namespace WebCore { 42 43 SVGRenderStyle::SVGRenderStyle() 44 { 45 static SVGRenderStyle* defaultStyle = new SVGRenderStyle(CreateDefault); 46 47 fill = defaultStyle->fill; 48 stroke = defaultStyle->stroke; 49 text = defaultStyle->text; 50 stops = defaultStyle->stops; 51 clip = defaultStyle->clip; 52 mask = defaultStyle->mask; 53 misc = defaultStyle->misc; 54 markers = defaultStyle->markers; 55 shadowSVG = defaultStyle->shadowSVG; 56 57 setBitDefaults(); 58 } 59 60 SVGRenderStyle::SVGRenderStyle(CreateDefaultType) 61 { 62 setBitDefaults(); 63 64 fill.init(); 65 stroke.init(); 66 text.init(); 67 stops.init(); 68 clip.init(); 69 mask.init(); 70 misc.init(); 71 markers.init(); 72 shadowSVG.init(); 73 } 74 75 SVGRenderStyle::SVGRenderStyle(const SVGRenderStyle& other) 76 : RefCounted<SVGRenderStyle>() 77 { 78 fill = other.fill; 79 stroke = other.stroke; 80 text = other.text; 81 stops = other.stops; 82 clip = other.clip; 83 mask = other.mask; 84 misc = other.misc; 85 markers = other.markers; 86 shadowSVG = other.shadowSVG; 87 88 svg_inherited_flags = other.svg_inherited_flags; 89 svg_noninherited_flags = other.svg_noninherited_flags; 90 } 91 92 SVGRenderStyle::~SVGRenderStyle() 93 { 94 } 95 96 bool SVGRenderStyle::operator==(const SVGRenderStyle& o) const 97 { 98 return (fill == o.fill && stroke == o.stroke && text == o.text && 99 stops == o.stops && clip == o.clip && mask == o.mask && 100 misc == o.misc && markers == o.markers && shadowSVG == o.shadowSVG && 101 svg_inherited_flags == o.svg_inherited_flags && 102 svg_noninherited_flags == o.svg_noninherited_flags); 103 } 104 105 bool SVGRenderStyle::inheritedNotEqual(const SVGRenderStyle* other) const 106 { 107 return (fill != other->fill 108 || stroke != other->stroke 109 || markers != other->markers 110 || text != other->text 111 || svg_inherited_flags != other->svg_inherited_flags); 112 } 113 114 void SVGRenderStyle::inheritFrom(const SVGRenderStyle* svgInheritParent) 115 { 116 if (!svgInheritParent) 117 return; 118 119 fill = svgInheritParent->fill; 120 stroke = svgInheritParent->stroke; 121 markers = svgInheritParent->markers; 122 text = svgInheritParent->text; 123 124 svg_inherited_flags = svgInheritParent->svg_inherited_flags; 125 } 126 127 float SVGRenderStyle::cssPrimitiveToLength(const RenderObject* item, CSSValue* value, float defaultValue) 128 { 129 CSSPrimitiveValue* primitive = static_cast<CSSPrimitiveValue*>(value); 130 131 unsigned short cssType = (primitive ? primitive->primitiveType() : (unsigned short) CSSPrimitiveValue::CSS_UNKNOWN); 132 if (!(cssType > CSSPrimitiveValue::CSS_UNKNOWN && cssType <= CSSPrimitiveValue::CSS_PC)) 133 return defaultValue; 134 135 if (cssType == CSSPrimitiveValue::CSS_PERCENTAGE) { 136 SVGStyledElement* element = static_cast<SVGStyledElement*>(item->node()); 137 SVGElement* viewportElement = (element ? element->viewportElement() : 0); 138 if (viewportElement) { 139 float result = primitive->getFloatValue() / 100.0f; 140 return SVGLength::PercentageOfViewport(result, element, LengthModeOther); 141 } 142 } 143 144 return primitive->computeLengthFloat(const_cast<RenderStyle*>(item->style()), item->document()->documentElement()->renderStyle()); 145 } 146 147 148 static void getSVGShadowExtent(ShadowData* shadow, int& top, int& right, int& bottom, int& left) 149 { 150 top = 0; 151 right = 0; 152 bottom = 0; 153 left = 0; 154 155 int blurAndSpread = shadow->blur + shadow->spread; 156 157 top = min(top, shadow->y - blurAndSpread); 158 right = max(right, shadow->x + blurAndSpread); 159 bottom = max(bottom, shadow->y + blurAndSpread); 160 left = min(left, shadow->x - blurAndSpread); 161 } 162 163 void SVGRenderStyle::inflateForShadow(IntRect& repaintRect) const 164 { 165 ShadowData* svgShadow = shadow(); 166 if (!svgShadow) 167 return; 168 169 FloatRect repaintFloatRect = FloatRect(repaintRect); 170 inflateForShadow(repaintFloatRect); 171 repaintRect = enclosingIntRect(repaintFloatRect); 172 } 173 174 void SVGRenderStyle::inflateForShadow(FloatRect& repaintRect) const 175 { 176 ShadowData* svgShadow = shadow(); 177 if (!svgShadow) 178 return; 179 180 int shadowTop; 181 int shadowRight; 182 int shadowBottom; 183 int shadowLeft; 184 getSVGShadowExtent(svgShadow, shadowTop, shadowRight, shadowBottom, shadowLeft); 185 186 int overflowLeft = repaintRect.x() + shadowLeft; 187 int overflowRight = repaintRect.right() + shadowRight; 188 int overflowTop = repaintRect.y() + shadowTop; 189 int overflowBottom = repaintRect.bottom() + shadowBottom; 190 191 repaintRect.setX(overflowLeft); 192 repaintRect.setY(overflowTop); 193 repaintRect.setWidth(overflowRight - overflowLeft); 194 repaintRect.setHeight(overflowBottom - overflowTop); 195 } 196 197 } 198 199 #endif // ENABLE(SVG) 200 201 // vim:ts=4:noet 202
