LCOV - code coverage report
Current view: directory - layout/style - nsStyleCoord.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 107 0 0.0 %
Date: 2012-06-02 Functions: 21 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 mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      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                 : /* representation of length values in computed style data */
      39                 : 
      40                 : #include "nsStyleCoord.h"
      41                 : #include "nsString.h"
      42                 : #include "nsCRT.h"
      43                 : #include "prlog.h"
      44                 : #include "nsMathUtils.h"
      45                 : #include "nsStyleContext.h"
      46                 : 
      47               0 : nsStyleCoord::nsStyleCoord(nsStyleUnit aUnit)
      48               0 :   : mUnit(aUnit)
      49                 : {
      50               0 :   NS_ASSERTION(aUnit < eStyleUnit_Percent, "not a valueless unit");
      51               0 :   if (aUnit >= eStyleUnit_Percent) {
      52               0 :     mUnit = eStyleUnit_Null;
      53                 :   }
      54               0 :   mValue.mInt = 0;
      55               0 : }
      56                 : 
      57               0 : nsStyleCoord::nsStyleCoord(PRInt32 aValue, nsStyleUnit aUnit)
      58               0 :   : mUnit(aUnit)
      59                 : {
      60                 :   //if you want to pass in eStyleUnit_Coord, don't. instead, use the
      61                 :   //constructor just above this one... MMP
      62               0 :   NS_ASSERTION((aUnit == eStyleUnit_Enumerated) ||
      63                 :                (aUnit == eStyleUnit_Integer), "not an int value");
      64               0 :   if ((aUnit == eStyleUnit_Enumerated) ||
      65                 :       (aUnit == eStyleUnit_Integer)) {
      66               0 :     mValue.mInt = aValue;
      67                 :   }
      68                 :   else {
      69               0 :     mUnit = eStyleUnit_Null;
      70               0 :     mValue.mInt = 0;
      71                 :   }
      72               0 : }
      73                 : 
      74               0 : nsStyleCoord::nsStyleCoord(float aValue, nsStyleUnit aUnit)
      75               0 :   : mUnit(aUnit)
      76                 : {
      77               0 :   if (aUnit < eStyleUnit_Percent || aUnit >= eStyleUnit_Coord) {
      78               0 :     NS_NOTREACHED("not a float value");
      79               0 :     Reset();
      80                 :   } else {
      81               0 :     mValue.mFloat = aValue;
      82                 :   }
      83               0 : }
      84                 : 
      85               0 : bool nsStyleCoord::operator==(const nsStyleCoord& aOther) const
      86                 : {
      87               0 :   if (mUnit != aOther.mUnit) {
      88               0 :     return false;
      89                 :   }
      90               0 :   switch (mUnit) {
      91                 :     case eStyleUnit_Null:
      92                 :     case eStyleUnit_Normal:
      93                 :     case eStyleUnit_Auto:
      94                 :     case eStyleUnit_None:
      95               0 :       return true;
      96                 :     case eStyleUnit_Percent:
      97                 :     case eStyleUnit_Factor:
      98                 :     case eStyleUnit_Degree:
      99                 :     case eStyleUnit_Grad:
     100                 :     case eStyleUnit_Radian:
     101                 :     case eStyleUnit_Turn:
     102               0 :       return mValue.mFloat == aOther.mValue.mFloat;
     103                 :     case eStyleUnit_Coord:
     104                 :     case eStyleUnit_Integer:
     105                 :     case eStyleUnit_Enumerated:
     106               0 :       return mValue.mInt == aOther.mValue.mInt;
     107                 :     case eStyleUnit_Calc:
     108               0 :       return *this->GetCalcValue() == *aOther.GetCalcValue();
     109                 :   }
     110               0 :   NS_ABORT_IF_FALSE(false, "unexpected unit");
     111               0 :   return false;
     112                 : }
     113                 : 
     114               0 : void nsStyleCoord::Reset()
     115                 : {
     116               0 :   mUnit = eStyleUnit_Null;
     117               0 :   mValue.mInt = 0;
     118               0 : }
     119                 : 
     120               0 : void nsStyleCoord::SetCoordValue(nscoord aValue)
     121                 : {
     122               0 :   mUnit = eStyleUnit_Coord;
     123               0 :   mValue.mInt = aValue;
     124               0 : }
     125                 : 
     126               0 : void nsStyleCoord::SetIntValue(PRInt32 aValue, nsStyleUnit aUnit)
     127                 : {
     128               0 :   NS_ASSERTION((aUnit == eStyleUnit_Enumerated) ||
     129                 :                (aUnit == eStyleUnit_Integer), "not an int value");
     130               0 :   if ((aUnit == eStyleUnit_Enumerated) ||
     131                 :       (aUnit == eStyleUnit_Integer)) {
     132               0 :     mUnit = aUnit;
     133               0 :     mValue.mInt = aValue;
     134                 :   }
     135                 :   else {
     136               0 :     Reset();
     137                 :   }
     138               0 : }
     139                 : 
     140               0 : void nsStyleCoord::SetPercentValue(float aValue)
     141                 : {
     142               0 :   mUnit = eStyleUnit_Percent;
     143               0 :   mValue.mFloat = aValue;
     144               0 : }
     145                 : 
     146               0 : void nsStyleCoord::SetFactorValue(float aValue)
     147                 : {
     148               0 :   mUnit = eStyleUnit_Factor;
     149               0 :   mValue.mFloat = aValue;
     150               0 : }
     151                 : 
     152               0 : void nsStyleCoord::SetAngleValue(float aValue, nsStyleUnit aUnit)
     153                 : {
     154               0 :   if (aUnit == eStyleUnit_Degree ||
     155                 :       aUnit == eStyleUnit_Grad ||
     156                 :       aUnit == eStyleUnit_Radian ||
     157                 :       aUnit == eStyleUnit_Turn) {
     158               0 :     mUnit = aUnit;
     159               0 :     mValue.mFloat = aValue;
     160                 :   } else {
     161               0 :     NS_NOTREACHED("not an angle value");
     162               0 :     Reset();
     163                 :   }
     164               0 : }
     165                 : 
     166               0 : void nsStyleCoord::SetCalcValue(Calc* aValue)
     167                 : {
     168               0 :   mUnit = eStyleUnit_Calc;
     169               0 :   mValue.mPointer = aValue;
     170               0 : }
     171                 : 
     172               0 : void nsStyleCoord::SetNormalValue()
     173                 : {
     174               0 :   mUnit = eStyleUnit_Normal;
     175               0 :   mValue.mInt = 0;
     176               0 : }
     177                 : 
     178               0 : void nsStyleCoord::SetAutoValue()
     179                 : {
     180               0 :   mUnit = eStyleUnit_Auto;
     181               0 :   mValue.mInt = 0;
     182               0 : }
     183                 : 
     184               0 : void nsStyleCoord::SetNoneValue()
     185                 : {
     186               0 :   mUnit = eStyleUnit_None;
     187               0 :   mValue.mInt = 0;
     188               0 : }
     189                 : 
     190                 : // accessors that are not inlined
     191                 : 
     192                 : double
     193               0 : nsStyleCoord::GetAngleValueInRadians() const
     194                 : {
     195               0 :   double angle = mValue.mFloat;
     196                 : 
     197               0 :   switch (GetUnit()) {
     198               0 :   case eStyleUnit_Radian: return angle;
     199               0 :   case eStyleUnit_Turn:   return angle * 2 * M_PI;
     200               0 :   case eStyleUnit_Degree: return angle * M_PI / 180.0;
     201               0 :   case eStyleUnit_Grad:   return angle * M_PI / 200.0;
     202                 : 
     203                 :   default:
     204               0 :     NS_NOTREACHED("unrecognized angular unit");
     205               0 :     return 0.0;
     206                 :   }
     207                 : }
     208                 : 
     209                 : // used by nsStyleSides and nsStyleCorners
     210                 : #define COMPARE_INDEXED_COORD(i)                                              \
     211                 :   PR_BEGIN_MACRO                                                              \
     212                 :   if (mUnits[i] != aOther.mUnits[i])                                          \
     213                 :     return false;                                                          \
     214                 :   if ((eStyleUnit_Percent <= mUnits[i]) &&                                    \
     215                 :       (mUnits[i] < eStyleUnit_Coord)) {                                       \
     216                 :     if (mValues[i].mFloat != aOther.mValues[i].mFloat)                        \
     217                 :       return false;                                                        \
     218                 :   }                                                                           \
     219                 :   else {                                                                      \
     220                 :     if (mValues[i].mInt != aOther.mValues[i].mInt)                            \
     221                 :       return false;                                                        \
     222                 :   }                                                                           \
     223                 :   PR_END_MACRO
     224                 : 
     225                 : 
     226               0 : nsStyleSides::nsStyleSides()
     227                 : {
     228               0 :   memset(this, 0x00, sizeof(nsStyleSides));
     229               0 : }
     230                 : 
     231               0 : bool nsStyleSides::operator==(const nsStyleSides& aOther) const
     232                 : {
     233               0 :   NS_FOR_CSS_SIDES(i) {
     234               0 :     COMPARE_INDEXED_COORD(i);
     235                 :   }
     236               0 :   return true;
     237                 : }
     238                 : 
     239               0 : void nsStyleSides::Reset()
     240                 : {
     241               0 :   memset(this, 0x00, sizeof(nsStyleSides));
     242               0 : }
     243                 : 
     244               0 : nsStyleCorners::nsStyleCorners()
     245                 : {
     246               0 :   memset(this, 0x00, sizeof(nsStyleCorners));
     247               0 : }
     248                 : 
     249                 : bool
     250               0 : nsStyleCorners::operator==(const nsStyleCorners& aOther) const
     251                 : {
     252               0 :   NS_FOR_CSS_HALF_CORNERS(i) {
     253               0 :     COMPARE_INDEXED_COORD(i);
     254                 :   }
     255               0 :   return true;
     256                 : }
     257                 : 
     258               0 : void nsStyleCorners::Reset()
     259                 : {
     260               0 :   memset(this, 0x00, sizeof(nsStyleCorners));
     261               0 : }
     262                 : 
     263                 : // Validation of NS_SIDE_IS_VERTICAL and NS_HALF_CORNER_IS_X.
     264                 : #define CASE(side, result)                                                    \
     265                 :   MOZ_STATIC_ASSERT(NS_SIDE_IS_VERTICAL(side) == result,                      \
     266                 :                     "NS_SIDE_IS_VERTICAL is wrong")
     267                 : CASE(NS_SIDE_TOP,    false);
     268                 : CASE(NS_SIDE_RIGHT,  true);
     269                 : CASE(NS_SIDE_BOTTOM, false);
     270                 : CASE(NS_SIDE_LEFT,   true);
     271                 : #undef CASE
     272                 : 
     273                 : #define CASE(corner, result)                                                  \
     274                 :   MOZ_STATIC_ASSERT(NS_HALF_CORNER_IS_X(corner) == result,                    \
     275                 :                     "NS_HALF_CORNER_IS_X is wrong")
     276                 : CASE(NS_CORNER_TOP_LEFT_X,     true);
     277                 : CASE(NS_CORNER_TOP_LEFT_Y,     false);
     278                 : CASE(NS_CORNER_TOP_RIGHT_X,    true);
     279                 : CASE(NS_CORNER_TOP_RIGHT_Y,    false);
     280                 : CASE(NS_CORNER_BOTTOM_RIGHT_X, true);
     281                 : CASE(NS_CORNER_BOTTOM_RIGHT_Y, false);
     282                 : CASE(NS_CORNER_BOTTOM_LEFT_X,  true);
     283                 : CASE(NS_CORNER_BOTTOM_LEFT_Y,  false);
     284                 : #undef CASE
     285                 : 
     286                 : // Validation of NS_HALF_TO_FULL_CORNER.
     287                 : #define CASE(corner, result)                                                  \
     288                 :   MOZ_STATIC_ASSERT(NS_HALF_TO_FULL_CORNER(corner) == result,                 \
     289                 :                     "NS_HALF_TO_FULL_CORNER is wrong")
     290                 : CASE(NS_CORNER_TOP_LEFT_X,     NS_CORNER_TOP_LEFT);
     291                 : CASE(NS_CORNER_TOP_LEFT_Y,     NS_CORNER_TOP_LEFT);
     292                 : CASE(NS_CORNER_TOP_RIGHT_X,    NS_CORNER_TOP_RIGHT);
     293                 : CASE(NS_CORNER_TOP_RIGHT_Y,    NS_CORNER_TOP_RIGHT);
     294                 : CASE(NS_CORNER_BOTTOM_RIGHT_X, NS_CORNER_BOTTOM_RIGHT);
     295                 : CASE(NS_CORNER_BOTTOM_RIGHT_Y, NS_CORNER_BOTTOM_RIGHT);
     296                 : CASE(NS_CORNER_BOTTOM_LEFT_X,  NS_CORNER_BOTTOM_LEFT);
     297                 : CASE(NS_CORNER_BOTTOM_LEFT_Y,  NS_CORNER_BOTTOM_LEFT);
     298                 : #undef CASE
     299                 : 
     300                 : // Validation of NS_FULL_TO_HALF_CORNER.
     301                 : #define CASE(corner, vert, result)                                            \
     302                 :   MOZ_STATIC_ASSERT(NS_FULL_TO_HALF_CORNER(corner, vert) == result,           \
     303                 :                     "NS_FULL_TO_HALF_CORNER is wrong")
     304                 : CASE(NS_CORNER_TOP_LEFT,     false, NS_CORNER_TOP_LEFT_X);
     305                 : CASE(NS_CORNER_TOP_LEFT,     true,  NS_CORNER_TOP_LEFT_Y);
     306                 : CASE(NS_CORNER_TOP_RIGHT,    false, NS_CORNER_TOP_RIGHT_X);
     307                 : CASE(NS_CORNER_TOP_RIGHT,    true,  NS_CORNER_TOP_RIGHT_Y);
     308                 : CASE(NS_CORNER_BOTTOM_RIGHT, false, NS_CORNER_BOTTOM_RIGHT_X);
     309                 : CASE(NS_CORNER_BOTTOM_RIGHT, true,  NS_CORNER_BOTTOM_RIGHT_Y);
     310                 : CASE(NS_CORNER_BOTTOM_LEFT,  false, NS_CORNER_BOTTOM_LEFT_X);
     311                 : CASE(NS_CORNER_BOTTOM_LEFT,  true,  NS_CORNER_BOTTOM_LEFT_Y);
     312                 : #undef CASE
     313                 : 
     314                 : // Validation of NS_SIDE_TO_{FULL,HALF}_CORNER.
     315                 : #define CASE(side, second, result)                                            \
     316                 :   MOZ_STATIC_ASSERT(NS_SIDE_TO_FULL_CORNER(side, second) == result,           \
     317                 :                     "NS_SIDE_TO_FULL_CORNER is wrong")
     318                 : CASE(NS_SIDE_TOP,    false, NS_CORNER_TOP_LEFT);
     319                 : CASE(NS_SIDE_TOP,    true,  NS_CORNER_TOP_RIGHT);
     320                 : 
     321                 : CASE(NS_SIDE_RIGHT,  false, NS_CORNER_TOP_RIGHT);
     322                 : CASE(NS_SIDE_RIGHT,  true,  NS_CORNER_BOTTOM_RIGHT);
     323                 : 
     324                 : CASE(NS_SIDE_BOTTOM, false, NS_CORNER_BOTTOM_RIGHT);
     325                 : CASE(NS_SIDE_BOTTOM, true,  NS_CORNER_BOTTOM_LEFT);
     326                 : 
     327                 : CASE(NS_SIDE_LEFT,   false, NS_CORNER_BOTTOM_LEFT);
     328                 : CASE(NS_SIDE_LEFT,   true,  NS_CORNER_TOP_LEFT);
     329                 : #undef CASE
     330                 : 
     331                 : #define CASE(side, second, parallel, result)                                  \
     332                 :   MOZ_STATIC_ASSERT(NS_SIDE_TO_HALF_CORNER(side, second, parallel) == result, \
     333                 :                     "NS_SIDE_TO_HALF_CORNER is wrong")
     334                 : CASE(NS_SIDE_TOP,    false, true,  NS_CORNER_TOP_LEFT_X);
     335                 : CASE(NS_SIDE_TOP,    false, false, NS_CORNER_TOP_LEFT_Y);
     336                 : CASE(NS_SIDE_TOP,    true,  true,  NS_CORNER_TOP_RIGHT_X);
     337                 : CASE(NS_SIDE_TOP,    true,  false, NS_CORNER_TOP_RIGHT_Y);
     338                 : 
     339                 : CASE(NS_SIDE_RIGHT,  false, false, NS_CORNER_TOP_RIGHT_X);
     340                 : CASE(NS_SIDE_RIGHT,  false, true,  NS_CORNER_TOP_RIGHT_Y);
     341                 : CASE(NS_SIDE_RIGHT,  true,  false, NS_CORNER_BOTTOM_RIGHT_X);
     342                 : CASE(NS_SIDE_RIGHT,  true,  true,  NS_CORNER_BOTTOM_RIGHT_Y);
     343                 : 
     344                 : CASE(NS_SIDE_BOTTOM, false, true,  NS_CORNER_BOTTOM_RIGHT_X);
     345                 : CASE(NS_SIDE_BOTTOM, false, false, NS_CORNER_BOTTOM_RIGHT_Y);
     346                 : CASE(NS_SIDE_BOTTOM, true,  true,  NS_CORNER_BOTTOM_LEFT_X);
     347                 : CASE(NS_SIDE_BOTTOM, true,  false, NS_CORNER_BOTTOM_LEFT_Y);
     348                 : 
     349                 : CASE(NS_SIDE_LEFT,   false, false, NS_CORNER_BOTTOM_LEFT_X);
     350                 : CASE(NS_SIDE_LEFT,   false, true,  NS_CORNER_BOTTOM_LEFT_Y);
     351                 : CASE(NS_SIDE_LEFT,   true,  false, NS_CORNER_TOP_LEFT_X);
     352                 : CASE(NS_SIDE_LEFT,   true,  true,  NS_CORNER_TOP_LEFT_Y);
     353                 : #undef CASE

Generated by: LCOV version 1.7