LCOV - app.info - content/svg/content/src/SVGMotionSMILPathUtils.cpp

LCOV - code coverage report
| Current view: | directory - content/svg/content/src - SVGMotionSMILPathUtils.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 57 | 0 | 0.0 %
| Date: | 2012-07-07 | Functions: | 7 | 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 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                 :  *   Daniel Holbert <dholbert@mozilla.com>
          23                 :  *
          24                 :  * Alternatively, the contents of this file may be used under the terms of
          25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
          26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          28                 :  * of those above. If you wish to allow use of your version of this file only
          29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          30                 :  * use your version of this file under the terms of the MPL, indicate your
          31                 :  * decision by deleting the provisions above and replace them with the notice
          32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          33                 :  * the provisions above, a recipient may use your version of this file under
          34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          35                 :  *
          36                 :  * ***** END LICENSE BLOCK ***** */
          37                 :
          38                 : #include "SVGMotionSMILPathUtils.h"
          39                 : #include "nsSVGElement.h"
          40                 : #include "SVGLength.h"
          41                 : #include "nsContentCreatorFunctions.h" // For NS_NewSVGElement
          42                 : #include "nsCharSeparatedTokenizer.h"
          43                 : #include "nsContentUtils.h"
          44                 : #include "nsSVGUtils.h"
          45                 :
          46                 : namespace mozilla {
          47                 :
          48                 : //----------------------------------------------------------------------
          49                 : // PathGenerator methods
          50                 :
          51                 : // For the dummy 'from' value used in pure by-animation & to-animation
          52                 : void
          53               0 : SVGMotionSMILPathUtils::PathGenerator::
          54                 :   MoveToOrigin()
          55                 : {
          56               0 :   NS_ABORT_IF_FALSE(!mHaveReceivedCommands,
          57                 :                     "Not expecting requests for mid-path MoveTo commands");
          58               0 :   mHaveReceivedCommands = true;
          59               0 :   mGfxContext.MoveTo(gfxPoint(0, 0));
          60               0 : }
          61                 :
          62                 : // For 'from' and the first entry in 'values'.
          63                 : bool
          64               0 : SVGMotionSMILPathUtils::PathGenerator::
          65                 :   MoveToAbsolute(const nsAString& aCoordPairStr)
          66                 : {
          67               0 :   NS_ABORT_IF_FALSE(!mHaveReceivedCommands,
          68                 :                     "Not expecting requests for mid-path MoveTo commands");
          69               0 :   mHaveReceivedCommands = true;
          70                 :
          71                 :   float xVal, yVal;
          72               0 :   if (!ParseCoordinatePair(aCoordPairStr, xVal, yVal)) {
          73               0 :     return false;
          74                 :   }
          75               0 :   mGfxContext.MoveTo(gfxPoint(xVal, yVal));
          76               0 :   return true;
          77                 : }
          78                 :
          79                 : // For 'to' and every entry in 'values' except the first.
          80                 : bool
          81               0 : SVGMotionSMILPathUtils::PathGenerator::
          82                 :   LineToAbsolute(const nsAString& aCoordPairStr, double& aSegmentDistance)
          83                 : {
          84               0 :   mHaveReceivedCommands = true;
          85                 :
          86                 :   float xVal, yVal;
          87               0 :   if (!ParseCoordinatePair(aCoordPairStr, xVal, yVal)) {
          88               0 :     return false;
          89                 :   }
          90               0 :   gfxPoint initialPoint = mGfxContext.CurrentPoint();
          91                 :
          92               0 :   mGfxContext.LineTo(gfxPoint(xVal, yVal));
          93               0 :   aSegmentDistance = NS_hypot(initialPoint.x - xVal, initialPoint.y -yVal);
          94               0 :   return true;
          95                 : }
          96                 :
          97                 : // For 'by'.
          98                 : bool
          99               0 : SVGMotionSMILPathUtils::PathGenerator::
         100                 :   LineToRelative(const nsAString& aCoordPairStr, double& aSegmentDistance)
         101                 : {
         102               0 :   mHaveReceivedCommands = true;
         103                 :
         104                 :   float xVal, yVal;
         105               0 :   if (!ParseCoordinatePair(aCoordPairStr, xVal, yVal)) {
         106               0 :     return false;
         107                 :   }
         108               0 :   mGfxContext.LineTo(mGfxContext.CurrentPoint() + gfxPoint(xVal, yVal));
         109               0 :   aSegmentDistance = NS_hypot(xVal, yVal);
         110               0 :   return true;
         111                 : }
         112                 :
         113                 : already_AddRefed<gfxFlattenedPath>
         114               0 : SVGMotionSMILPathUtils::PathGenerator::GetResultingPath()
         115                 : {
         116               0 :   return mGfxContext.GetFlattenedPath();
         117                 : }
         118                 :
         119                 : //----------------------------------------------------------------------
         120                 : // Helper / protected methods
         121                 :
         122                 : bool
         123               0 : SVGMotionSMILPathUtils::PathGenerator::
         124                 :   ParseCoordinatePair(const nsAString& aCoordPairStr,
         125                 :                       float& aXVal, float& aYVal)
         126                 : {
         127                 :   nsCharSeparatedTokenizerTemplate<IsSVGWhitespace>
         128                 :     tokenizer(aCoordPairStr, ',',
         129               0 :               nsCharSeparatedTokenizer::SEPARATOR_OPTIONAL);
         130                 :
         131               0 :   SVGLength x, y;
         132                 :
         133               0 :   if (!tokenizer.hasMoreTokens() ||
         134               0 :       !x.SetValueFromString(tokenizer.nextToken())) {
         135               0 :     return false;
         136                 :   }
         137                 :
         138               0 :   if (!tokenizer.hasMoreTokens() ||
         139               0 :       !y.SetValueFromString(tokenizer.nextToken())) {
         140               0 :     return false;
         141                 :   }
         142                 :
         143               0 :   if (tokenizer.lastTokenEndedWithSeparator() || // Trailing comma.
         144               0 :       tokenizer.hasMoreTokens()) {               // More text remains
         145               0 :     return false;
         146                 :   }
         147                 :
         148               0 :   float xRes = x.GetValueInUserUnits(mSVGElement, nsSVGUtils::X);
         149               0 :   float yRes = y.GetValueInUserUnits(mSVGElement, nsSVGUtils::Y);
         150                 :
         151               0 :   NS_ENSURE_FINITE2(xRes, yRes, false);
         152                 :
         153               0 :   aXVal = xRes;
         154               0 :   aYVal = yRes;
         155               0 :   return true;
         156                 : }
         157                 :
         158                 : //----------------------------------------------------------------------
         159                 : // MotionValueParser methods
         160                 : nsresult
         161               0 : SVGMotionSMILPathUtils::MotionValueParser::
         162                 :   Parse(const nsAString& aValueStr)
         163                 : {
         164                 :   bool success;
         165               0 :   if (!mPathGenerator->HaveReceivedCommands()) {
         166                 :     // Interpret first value in "values" attribute as the path's initial MoveTo
         167               0 :     success = mPathGenerator->MoveToAbsolute(aValueStr);
         168               0 :     if (success) {
         169               0 :       success = !!mPointDistances->AppendElement(0.0);
         170                 :     }
         171                 :   } else {
         172                 :     double dist;
         173               0 :     success = mPathGenerator->LineToAbsolute(aValueStr, dist);
         174               0 :     if (success) {
         175               0 :       mDistanceSoFar += dist;
         176               0 :       success = !!mPointDistances->AppendElement(mDistanceSoFar);
         177                 :     }
         178                 :   }
         179               0 :   return success ? NS_OK : NS_ERROR_FAILURE;
         180                 : }
         181                 :
         182                 : } // namespace mozilla

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