LCOV - code coverage report
Current view: directory - content/svg/content/src - SVGPointListSMILType.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 88 2 2.3 %
Date: 2012-06-02 Functions: 10 2 20.0 %

       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 the Mozilla Foundation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2010
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *
      23                 :  * Alternatively, the contents of this file may be used under the terms of
      24                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      25                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      26                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      27                 :  * of those above. If you wish to allow use of your version of this file only
      28                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      29                 :  * use your version of this file under the terms of the MPL, indicate your
      30                 :  * decision by deleting the provisions above and replace them with the notice
      31                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      32                 :  * the provisions above, a recipient may use your version of this file under
      33                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      34                 :  *
      35                 :  * ***** END LICENSE BLOCK ***** */
      36                 : 
      37                 : #include "SVGPointListSMILType.h"
      38                 : #include "nsSMILValue.h"
      39                 : #include "SVGPointList.h"
      40                 : #include "nsMathUtils.h"
      41                 : #include <math.h>
      42                 : 
      43                 : namespace mozilla {
      44                 : 
      45            1464 : /*static*/ SVGPointListSMILType SVGPointListSMILType::sSingleton;
      46                 : 
      47                 : //----------------------------------------------------------------------
      48                 : // nsISMILType implementation
      49                 : 
      50                 : void
      51               0 : SVGPointListSMILType::Init(nsSMILValue &aValue) const
      52                 : {
      53               0 :   NS_ABORT_IF_FALSE(aValue.IsNull(), "Unexpected value type");
      54                 : 
      55               0 :   SVGPointListAndInfo* pointList = new SVGPointListAndInfo();
      56                 : 
      57               0 :   aValue.mU.mPtr = pointList;
      58               0 :   aValue.mType = this;
      59               0 : }
      60                 : 
      61                 : void
      62               0 : SVGPointListSMILType::Destroy(nsSMILValue& aValue) const
      63                 : {
      64               0 :   NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value type");
      65               0 :   delete static_cast<SVGPointListAndInfo*>(aValue.mU.mPtr);
      66               0 :   aValue.mU.mPtr = nsnull;
      67               0 :   aValue.mType = &nsSMILNullType::sSingleton;
      68               0 : }
      69                 : 
      70                 : nsresult
      71               0 : SVGPointListSMILType::Assign(nsSMILValue& aDest,
      72                 :                               const nsSMILValue& aSrc) const
      73                 : {
      74               0 :   NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types");
      75               0 :   NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value");
      76                 : 
      77                 :   const SVGPointListAndInfo* src =
      78               0 :     static_cast<const SVGPointListAndInfo*>(aSrc.mU.mPtr);
      79                 :   SVGPointListAndInfo* dest =
      80               0 :     static_cast<SVGPointListAndInfo*>(aDest.mU.mPtr);
      81                 : 
      82               0 :   return dest->CopyFrom(*src);
      83                 : }
      84                 : 
      85                 : bool
      86               0 : SVGPointListSMILType::IsEqual(const nsSMILValue& aLeft,
      87                 :                                const nsSMILValue& aRight) const
      88                 : {
      89               0 :   NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types");
      90               0 :   NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value");
      91                 : 
      92                 :   return *static_cast<const SVGPointListAndInfo*>(aLeft.mU.mPtr) ==
      93               0 :          *static_cast<const SVGPointListAndInfo*>(aRight.mU.mPtr);
      94                 : }
      95                 : 
      96                 : nsresult
      97               0 : SVGPointListSMILType::Add(nsSMILValue& aDest,
      98                 :                           const nsSMILValue& aValueToAdd,
      99                 :                           PRUint32 aCount) const
     100                 : {
     101               0 :   NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL type");
     102               0 :   NS_PRECONDITION(aValueToAdd.mType == this, "Incompatible SMIL type");
     103                 : 
     104                 :   SVGPointListAndInfo& dest =
     105               0 :     *static_cast<SVGPointListAndInfo*>(aDest.mU.mPtr);
     106                 :   const SVGPointListAndInfo& valueToAdd =
     107               0 :     *static_cast<const SVGPointListAndInfo*>(aValueToAdd.mU.mPtr);
     108                 : 
     109               0 :   NS_ABORT_IF_FALSE(dest.Element() || valueToAdd.Element(),
     110                 :                     "Target element propagation failure");
     111                 : 
     112               0 :   if (!valueToAdd.Element()) {
     113               0 :     NS_ABORT_IF_FALSE(valueToAdd.Length() == 0,
     114                 :                       "Not identity value - target element propagation failure");
     115               0 :     return NS_OK;
     116                 :   }
     117               0 :   if (!dest.Element()) {
     118               0 :     NS_ABORT_IF_FALSE(dest.Length() == 0,
     119                 :                       "Not identity value - target element propagation failure");
     120               0 :     if (!dest.SetLength(valueToAdd.Length())) {
     121               0 :       return NS_ERROR_OUT_OF_MEMORY;
     122                 :     }
     123               0 :     for (PRUint32 i = 0; i < dest.Length(); ++i) {
     124               0 :       dest[i] = aCount * valueToAdd[i];
     125                 :     }
     126               0 :     dest.SetInfo(valueToAdd.Element()); // propagate target element info!
     127               0 :     return NS_OK;
     128                 :   }
     129               0 :   NS_ABORT_IF_FALSE(dest.Element() == valueToAdd.Element(),
     130                 :                     "adding values from different elements...?");
     131               0 :   if (dest.Length() != valueToAdd.Length()) {
     132                 :     // For now we only support animation between lists with the same number of
     133                 :     // items. nsSVGUtils::ReportToConsole
     134               0 :     return NS_ERROR_FAILURE;
     135                 :   }
     136               0 :   for (PRUint32 i = 0; i < dest.Length(); ++i) {
     137               0 :     dest[i] += aCount * valueToAdd[i];
     138                 :   }
     139               0 :   dest.SetInfo(valueToAdd.Element()); // propagate target element info!
     140               0 :   return NS_OK;
     141                 : }
     142                 : 
     143                 : nsresult
     144               0 : SVGPointListSMILType::ComputeDistance(const nsSMILValue& aFrom,
     145                 :                                       const nsSMILValue& aTo,
     146                 :                                       double& aDistance) const
     147                 : {
     148               0 :   NS_PRECONDITION(aFrom.mType == this, "Unexpected SMIL type");
     149               0 :   NS_PRECONDITION(aTo.mType == this, "Incompatible SMIL type");
     150                 : 
     151                 :   const SVGPointListAndInfo& from =
     152               0 :     *static_cast<const SVGPointListAndInfo*>(aFrom.mU.mPtr);
     153                 :   const SVGPointListAndInfo& to =
     154               0 :     *static_cast<const SVGPointListAndInfo*>(aTo.mU.mPtr);
     155                 : 
     156               0 :   if (from.Length() != to.Length()) {
     157                 :     // Lists in the 'values' attribute must have the same length.
     158                 :     // nsSVGUtils::ReportToConsole
     159               0 :     return NS_ERROR_FAILURE;
     160                 :   }
     161                 : 
     162                 :   // We return the root of the sum of the squares of the distances between the
     163                 :   // points at each corresponding index.
     164                 : 
     165               0 :   double total = 0.0;
     166                 : 
     167               0 :   for (PRUint32 i = 0; i < to.Length(); ++i) {
     168               0 :     double dx = to[i].mX - from[i].mX;
     169               0 :     double dy = to[i].mY - from[i].mY;
     170               0 :     total += dx * dx + dy * dy;
     171                 :   }
     172               0 :   double distance = sqrt(total);
     173               0 :   if (!NS_finite(distance)) {
     174               0 :     return NS_ERROR_FAILURE;
     175                 :   }
     176               0 :   aDistance = distance;
     177                 : 
     178               0 :   return NS_OK;
     179                 : }
     180                 : 
     181                 : nsresult
     182               0 : SVGPointListSMILType::Interpolate(const nsSMILValue& aStartVal,
     183                 :                                   const nsSMILValue& aEndVal,
     184                 :                                   double aUnitDistance,
     185                 :                                   nsSMILValue& aResult) const
     186                 : {
     187               0 :   NS_PRECONDITION(aStartVal.mType == aEndVal.mType,
     188                 :                   "Trying to interpolate different types");
     189               0 :   NS_PRECONDITION(aStartVal.mType == this,
     190                 :                   "Unexpected types for interpolation");
     191               0 :   NS_PRECONDITION(aResult.mType == this, "Unexpected result type");
     192                 : 
     193                 :   const SVGPointListAndInfo& start =
     194               0 :     *static_cast<const SVGPointListAndInfo*>(aStartVal.mU.mPtr);
     195                 :   const SVGPointListAndInfo& end =
     196               0 :     *static_cast<const SVGPointListAndInfo*>(aEndVal.mU.mPtr);
     197                 :   SVGPointListAndInfo& result =
     198               0 :     *static_cast<SVGPointListAndInfo*>(aResult.mU.mPtr);
     199                 : 
     200               0 :   NS_ABORT_IF_FALSE(end.Element(), "Can't propagate target element");
     201               0 :   NS_ABORT_IF_FALSE(start.Element() == end.Element() || !start.Element(),
     202                 :                     "Different target elements");
     203                 : 
     204               0 :   if (start.Element() && // 'start' is not an "identity" value
     205               0 :       start.Length() != end.Length()) {
     206                 :     // For now we only support animation between lists of the same length.
     207                 :     // nsSVGUtils::ReportToConsole
     208               0 :     return NS_ERROR_FAILURE;
     209                 :   }
     210               0 :   if (!result.SetLength(end.Length())) {
     211               0 :     return NS_ERROR_OUT_OF_MEMORY;
     212                 :   }
     213                 : 
     214               0 :   result.SetInfo(end.Element()); // propagate target element info!
     215                 : 
     216               0 :   if (start.Length() != end.Length()) {
     217               0 :     NS_ABORT_IF_FALSE(start.Length() == 0, "Not an identity value");
     218               0 :     for (PRUint32 i = 0; i < end.Length(); ++i) {
     219               0 :       result[i] = aUnitDistance * end[i];
     220                 :     }
     221               0 :     return NS_OK;
     222                 :   }
     223               0 :   for (PRUint32 i = 0; i < end.Length(); ++i) {
     224               0 :     result[i] = start[i] + (end[i] - start[i]) * aUnitDistance;
     225                 :   }
     226               0 :   return NS_OK;
     227                 : }
     228                 : 
     229            4392 : } // namespace mozilla

Generated by: LCOV version 1.7