khtml/svg/graphics/SVGPaintServer.cpp

   1 /*
   2  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
   3  *               2007 Rob Buis <buis@kde.org>
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include "config.h"
  28 #include "wtf/Platform.h"
  29
  30 #if ENABLE(SVG)
  31 #include "SVGPaintServer.h"
  32
  33 #include "RenderObject.h"
  34 #include "RenderStyle.h"
  35 #include "SVGPaintServerSolid.h"
  36 #include "SVGStyledElement.h"
  37 #include "SVGURIReference.h"
  38
  39 namespace WebCore {
  40
  41 SVGPaintServer::SVGPaintServer()
  42 {
  43 }
  44
  45 SVGPaintServer::~SVGPaintServer()
  46 {
  47 }
  48
  49 /*TextStream& operator<<(TextStream& ts, const SVGPaintServer& paintServer)
  50 {
  51     return paintServer.externalRepresentation(ts);
  52 }*/
  53
  54 SVGPaintServer* getPaintServerById(Document* document, const AtomicString& id)
  55 {
  56     SVGResource* resource = getResourceById(document, id);
  57     if (resource && resource->isPaintServer())
  58         return static_cast<SVGPaintServer*>(resource);
  59
  60     return 0;
  61 }
  62
  63 SVGPaintServerSolid* SVGPaintServer::sharedSolidPaintServer()
  64 {
  65     static SVGPaintServerSolid* _sharedSolidPaintServer = SVGPaintServerSolid::create().releaseRef();
  66
  67     return _sharedSolidPaintServer;
  68 }
  69
  70 SVGPaintServer* SVGPaintServer::fillPaintServer(const RenderStyle* style, const RenderObject* item)
  71 {
  72     if (!style->svgStyle()->hasFill())
  73         return 0;
  74
  75     SVGPaint* fill = style->svgStyle()->fillPaint();
  76
  77     SVGPaintServer* fillPaintServer = 0;
  78     SVGPaint::SVGPaintType paintType = fill->paintType();
  79     if (paintType == SVGPaint::SVG_PAINTTYPE_URI ||
  80         paintType == SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR) {
  81         AtomicString id(SVGURIReference::getTarget(fill->uri()));
  82         fillPaintServer = getPaintServerById(item->document(), id);
  83         SVGElement* svgElement = static_cast<SVGElement*>(item->element());
  84         ASSERT(svgElement && svgElement->document() && svgElement->isStyled());
  85
  86         if (item->isRenderPath() && fillPaintServer)
  87             fillPaintServer->addClient(static_cast<SVGStyledElement*>(svgElement));
  88         else if (!fillPaintServer && paintType == SVGPaint::SVG_PAINTTYPE_URI)
  89             svgElement->document()->accessSVGExtensions()->addPendingResource(id, static_cast<SVGStyledElement*>(svgElement));
  90     }
  91     if (paintType != SVGPaint::SVG_PAINTTYPE_URI && !fillPaintServer) {
  92         fillPaintServer = sharedSolidPaintServer();
  93         SVGPaintServerSolid* fillPaintServerSolid = static_cast<SVGPaintServerSolid*>(fillPaintServer);
  94         if (paintType == SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR)
  95             fillPaintServerSolid->setColor(style->color());
  96         else
  97             fillPaintServerSolid->setColor(fill->color());
  98         // FIXME: Ideally invalid colors would never get set on the RenderStyle and this could turn into an ASSERT
  99         if (!fillPaintServerSolid->color().isValid())
 100             fillPaintServer = 0;
 101     }
 102     if (!fillPaintServer) {
 103         // default value (black), see bug 11017
 104         fillPaintServer = sharedSolidPaintServer();
 105         static_cast<SVGPaintServerSolid*>(fillPaintServer)->setColor(/*Color::black*/Qt::black);
 106     }
 107     return fillPaintServer;
 108 }
 109
 110 SVGPaintServer* SVGPaintServer::strokePaintServer(const RenderStyle* style, const RenderObject* item)
 111 {
 112     if (!style->svgStyle()->hasStroke())
 113         return 0;
 114
 115     SVGPaint* stroke = style->svgStyle()->strokePaint();
 116
 117     SVGPaintServer* strokePaintServer = 0;
 118     SVGPaint::SVGPaintType paintType = stroke->paintType();
 119     if (paintType == SVGPaint::SVG_PAINTTYPE_URI ||
 120         paintType == SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR) {
 121         AtomicString id(SVGURIReference::getTarget(stroke->uri()));
 122         strokePaintServer = getPaintServerById(item->document(), id);
 123
 124         SVGElement* svgElement = static_cast<SVGElement*>(item->element());
 125         ASSERT(svgElement && svgElement->document() && svgElement->isStyled());
 126
 127         if (item->isRenderPath() && strokePaintServer)
 128             strokePaintServer->addClient(static_cast<SVGStyledElement*>(svgElement));
 129         else if (!strokePaintServer && paintType == SVGPaint::SVG_PAINTTYPE_URI)
 130             svgElement->document()->accessSVGExtensions()->addPendingResource(id, static_cast<SVGStyledElement*>(svgElement));
 131     }
 132     if (paintType != SVGPaint::SVG_PAINTTYPE_URI && !strokePaintServer) {
 133         strokePaintServer = sharedSolidPaintServer();
 134         SVGPaintServerSolid* strokePaintServerSolid = static_cast<SVGPaintServerSolid*>(strokePaintServer);
 135         if (paintType == SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR)
 136             strokePaintServerSolid->setColor(style->color());
 137         else
 138             strokePaintServerSolid->setColor(stroke->color());
 139         // FIXME: Ideally invalid colors would never get set on the RenderStyle and this could turn into an ASSERT
 140         if (!strokePaintServerSolid->color().isValid())
 141             strokePaintServer = 0;
 142     }
 143
 144     return strokePaintServer;
 145 }
 146
 147 DashArray dashArrayFromRenderingStyle(const RenderStyle* style)
 148 {
 149     DashArray array;
 150
 151     /*CSSValueList* dashes = style->svgStyle()->strokeDashArray();
 152     if (dashes) {
 153         CSSPrimitiveValue* dash = 0;
 154         unsigned long len = dashes->length();
 155         for (unsigned long i = 0; i < len; i++) {
 156             dash = static_cast<CSSPrimitiveValue*>(dashes->itemWithoutBoundsCheck(i));
 157             if (!dash)
 158                 continue;
 159
 160             array.append((float) dash->computeLengthFloat(const_cast<RenderStyle*>(style)));
 161         }
 162     }*/
 163
 164     return array;
 165 }
 166
 167 } // namespace WebCore
 168
 169 #endif