LCOV - code coverage report
Current view: directory - content/svg/content/src - nsSVGRectElement.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 58 0 0.0 %
Date: 2012-06-02 Functions: 78 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is the Mozilla SVG project.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Crocodile Clips Ltd..
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2001
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   William Cook <william.cook@crocodile-clips.com> (original author)
      24                 :  *   Alex Fritze <alex.fritze@crocodile-clips.com>
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      28                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #include "mozilla/Util.h"
      41                 : 
      42                 : #include "nsSVGPathGeometryElement.h"
      43                 : #include "nsIDOMSVGRectElement.h"
      44                 : #include "nsSVGLength2.h"
      45                 : #include "nsGkAtoms.h"
      46                 : #include "gfxContext.h"
      47                 : 
      48                 : using namespace mozilla;
      49                 : 
      50                 : typedef nsSVGPathGeometryElement nsSVGRectElementBase;
      51                 : 
      52                 : class nsSVGRectElement : public nsSVGRectElementBase,
      53                 :                          public nsIDOMSVGRectElement
      54               0 : {
      55                 : protected:
      56                 :   friend nsresult NS_NewSVGRectElement(nsIContent **aResult,
      57                 :                                        already_AddRefed<nsINodeInfo> aNodeInfo);
      58                 :   nsSVGRectElement(already_AddRefed<nsINodeInfo> aNodeInfo);
      59                 : 
      60                 : public:
      61                 :   // interfaces:
      62                 :   NS_DECL_ISUPPORTS_INHERITED
      63                 :   NS_DECL_NSIDOMSVGRECTELEMENT
      64                 : 
      65                 :   // xxx I wish we could use virtual inheritance
      66               0 :   NS_FORWARD_NSIDOMNODE(nsSVGRectElementBase::)
      67               0 :   NS_FORWARD_NSIDOMELEMENT(nsSVGRectElementBase::)
      68               0 :   NS_FORWARD_NSIDOMSVGELEMENT(nsSVGRectElementBase::)
      69                 : 
      70                 :   // nsSVGSVGElement methods:
      71                 :   virtual bool HasValidDimensions() const;
      72                 : 
      73                 :   // nsSVGPathGeometryElement methods:
      74                 :   virtual void ConstructPath(gfxContext *aCtx);
      75                 : 
      76                 :   virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
      77                 : 
      78                 :   virtual nsXPCClassInfo* GetClassInfo();
      79                 : protected:
      80                 : 
      81                 :   virtual LengthAttributesInfo GetLengthInfo();
      82                 :  
      83                 :   enum { X, Y, WIDTH, HEIGHT, RX, RY };
      84                 :   nsSVGLength2 mLengthAttributes[6];
      85                 :   static LengthInfo sLengthInfo[6];
      86                 : };
      87                 : 
      88                 : nsSVGElement::LengthInfo nsSVGRectElement::sLengthInfo[6] =
      89                 : {
      90                 :   { &nsGkAtoms::x, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, nsSVGUtils::X },
      91                 :   { &nsGkAtoms::y, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, nsSVGUtils::Y },
      92                 :   { &nsGkAtoms::width, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, nsSVGUtils::X },
      93                 :   { &nsGkAtoms::height, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, nsSVGUtils::Y },
      94                 :   { &nsGkAtoms::rx, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, nsSVGUtils::X },
      95                 :   { &nsGkAtoms::ry, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, nsSVGUtils::Y }
      96                 : };
      97                 : 
      98               0 : NS_IMPL_NS_NEW_SVG_ELEMENT(Rect)
      99                 : 
     100                 : //----------------------------------------------------------------------
     101                 : // nsISupports methods
     102                 : 
     103               0 : NS_IMPL_ADDREF_INHERITED(nsSVGRectElement,nsSVGRectElementBase)
     104               0 : NS_IMPL_RELEASE_INHERITED(nsSVGRectElement,nsSVGRectElementBase)
     105                 : 
     106               0 : DOMCI_NODE_DATA(SVGRectElement, nsSVGRectElement)
     107                 : 
     108               0 : NS_INTERFACE_TABLE_HEAD(nsSVGRectElement)
     109               0 :   NS_NODE_INTERFACE_TABLE5(nsSVGRectElement, nsIDOMNode, nsIDOMElement,
     110                 :                            nsIDOMSVGElement, nsIDOMSVGTests,
     111                 :                            nsIDOMSVGRectElement)
     112               0 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(SVGRectElement)
     113               0 : NS_INTERFACE_MAP_END_INHERITING(nsSVGRectElementBase)
     114                 : 
     115                 : //----------------------------------------------------------------------
     116                 : // Implementation
     117                 : 
     118               0 : nsSVGRectElement::nsSVGRectElement(already_AddRefed<nsINodeInfo> aNodeInfo)
     119               0 :   : nsSVGRectElementBase(aNodeInfo)
     120                 : {
     121               0 : }
     122                 : 
     123                 : //----------------------------------------------------------------------
     124                 : // nsIDOMNode methods
     125                 : 
     126               0 : NS_IMPL_ELEMENT_CLONE_WITH_INIT(nsSVGRectElement)
     127                 : 
     128                 : //----------------------------------------------------------------------
     129                 : // nsIDOMSVGRectElement methods
     130                 : 
     131                 : /* readonly attribute nsIDOMSVGAnimatedLength x; */
     132               0 : NS_IMETHODIMP nsSVGRectElement::GetX(nsIDOMSVGAnimatedLength * *aX)
     133                 : {
     134               0 :   return mLengthAttributes[X].ToDOMAnimatedLength(aX, this);
     135                 : }
     136                 : 
     137                 : /* readonly attribute nsIDOMSVGAnimatedLength y; */
     138               0 : NS_IMETHODIMP nsSVGRectElement::GetY(nsIDOMSVGAnimatedLength * *aY)
     139                 : {
     140               0 :   return mLengthAttributes[Y].ToDOMAnimatedLength(aY, this);
     141                 : }
     142                 : 
     143                 : /* readonly attribute nsIDOMSVGAnimatedLength width; */
     144               0 : NS_IMETHODIMP nsSVGRectElement::GetWidth(nsIDOMSVGAnimatedLength * *aWidth)
     145                 : {
     146               0 :   return mLengthAttributes[WIDTH].ToDOMAnimatedLength(aWidth, this);
     147                 : }
     148                 : 
     149                 : /* readonly attribute nsIDOMSVGAnimatedLength height; */
     150               0 : NS_IMETHODIMP nsSVGRectElement::GetHeight(nsIDOMSVGAnimatedLength * *aHeight)
     151                 : {
     152               0 :   return mLengthAttributes[HEIGHT].ToDOMAnimatedLength(aHeight, this);
     153                 : }
     154                 : 
     155                 : /* readonly attribute nsIDOMSVGAnimatedLength rx; */
     156               0 : NS_IMETHODIMP nsSVGRectElement::GetRx(nsIDOMSVGAnimatedLength * *aRx)
     157                 : {
     158               0 :   return mLengthAttributes[RX].ToDOMAnimatedLength(aRx, this);
     159                 : }
     160                 : 
     161                 : /* readonly attribute nsIDOMSVGAnimatedLength ry; */
     162               0 : NS_IMETHODIMP nsSVGRectElement::GetRy(nsIDOMSVGAnimatedLength * *aRy)
     163                 : {
     164               0 :   return mLengthAttributes[RY].ToDOMAnimatedLength(aRy, this);
     165                 : }
     166                 : 
     167                 : //----------------------------------------------------------------------
     168                 : // nsSVGElement methods
     169                 : 
     170                 : /* virtual */ bool
     171               0 : nsSVGRectElement::HasValidDimensions() const
     172                 : {
     173               0 :   return mLengthAttributes[WIDTH].IsExplicitlySet() &&
     174               0 :          mLengthAttributes[WIDTH].GetAnimValInSpecifiedUnits() > 0 &&
     175               0 :          mLengthAttributes[HEIGHT].IsExplicitlySet() &&
     176               0 :          mLengthAttributes[HEIGHT].GetAnimValInSpecifiedUnits() > 0;
     177                 : }
     178                 : 
     179                 : nsSVGElement::LengthAttributesInfo
     180               0 : nsSVGRectElement::GetLengthInfo()
     181                 : {
     182                 :   return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
     183               0 :                               ArrayLength(sLengthInfo));
     184                 : }
     185                 : 
     186                 : //----------------------------------------------------------------------
     187                 : // nsSVGPathGeometryElement methods
     188                 : 
     189                 : void
     190               0 : nsSVGRectElement::ConstructPath(gfxContext *aCtx)
     191                 : {
     192                 :   float x, y, width, height, rx, ry;
     193                 : 
     194               0 :   GetAnimatedLengthValues(&x, &y, &width, &height, &rx, &ry, nsnull);
     195                 : 
     196                 :   /* In a perfect world, this would be handled by the DOM, and
     197                 :      return a DOM exception. */
     198               0 :   if (width <= 0 || height <= 0)
     199               0 :     return;
     200                 : 
     201               0 :   rx = NS_MAX(rx, 0.0f);
     202               0 :   ry = NS_MAX(ry, 0.0f);
     203                 : 
     204                 :   /* optimize the no rounded corners case */
     205               0 :   if (rx == 0 && ry == 0) {
     206               0 :     aCtx->Rectangle(gfxRect(x, y, width, height));
     207               0 :     return;
     208                 :   }
     209                 : 
     210                 :   /* If either the 'rx' or the 'ry' attribute isn't set, then we
     211                 :      have to set it to the value of the other. */
     212               0 :   bool hasRx = mLengthAttributes[RX].IsExplicitlySet();
     213               0 :   bool hasRy = mLengthAttributes[RY].IsExplicitlySet();
     214               0 :   if (hasRx && !hasRy)
     215               0 :     ry = rx;
     216               0 :   else if (hasRy && !hasRx)
     217               0 :     rx = ry;
     218                 : 
     219                 :   /* Clamp rx and ry to half the rect's width and height respectively. */
     220               0 :   float halfWidth  = width/2;
     221               0 :   float halfHeight = height/2;
     222               0 :   if (rx > halfWidth)
     223               0 :     rx = halfWidth;
     224               0 :   if (ry > halfHeight)
     225               0 :     ry = halfHeight;
     226                 : 
     227               0 :   gfxSize corner(rx, ry);
     228                 :   aCtx->RoundedRectangle(gfxRect(x, y, width, height),
     229               0 :                          gfxCornerSizes(corner, corner, corner, corner));
     230                 : }

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