LCOV - code coverage report
Current view: directory - gfx/src - nsFont.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 120 0 0.0 %
Date: 2012-06-02 Functions: 13 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                 : #include "nsFont.h"
      39                 : #include "nsString.h"
      40                 : #include "nsUnicharUtils.h"
      41                 : #include "nsCRT.h"
      42                 : 
      43               0 : nsFont::nsFont(const char* aName, PRUint8 aStyle, PRUint8 aVariant,
      44                 :                PRUint16 aWeight, PRInt16 aStretch, PRUint8 aDecoration,
      45                 :                nscoord aSize, float aSizeAdjust,
      46                 :                const nsString* aFeatureSettings,
      47               0 :                const nsString* aLanguageOverride)
      48                 : {
      49               0 :   NS_ASSERTION(aName && IsASCII(nsDependentCString(aName)),
      50                 :                "Must only pass ASCII names here");
      51               0 :   name.AssignASCII(aName);
      52               0 :   style = aStyle;
      53               0 :   systemFont = false;
      54               0 :   variant = aVariant;
      55               0 :   weight = aWeight;
      56               0 :   stretch = aStretch;
      57               0 :   decorations = aDecoration;
      58               0 :   size = aSize;
      59               0 :   sizeAdjust = aSizeAdjust;
      60               0 :   if (aFeatureSettings) {
      61               0 :     featureSettings = *aFeatureSettings;
      62                 :   }
      63               0 :   if (aLanguageOverride) {
      64               0 :     languageOverride = *aLanguageOverride;
      65                 :   }
      66               0 : }
      67                 : 
      68               0 : nsFont::nsFont(const nsString& aName, PRUint8 aStyle, PRUint8 aVariant,
      69                 :                PRUint16 aWeight, PRInt16 aStretch, PRUint8 aDecoration,
      70                 :                nscoord aSize, float aSizeAdjust,
      71                 :                const nsString* aFeatureSettings,
      72                 :                const nsString* aLanguageOverride)
      73               0 :   : name(aName)
      74                 : {
      75               0 :   style = aStyle;
      76               0 :   systemFont = false;
      77               0 :   variant = aVariant;
      78               0 :   weight = aWeight;
      79               0 :   stretch = aStretch;
      80               0 :   decorations = aDecoration;
      81               0 :   size = aSize;
      82               0 :   sizeAdjust = aSizeAdjust;
      83               0 :   if (aFeatureSettings) {
      84               0 :     featureSettings = *aFeatureSettings;
      85                 :   }
      86               0 :   if (aLanguageOverride) {
      87               0 :     languageOverride = *aLanguageOverride;
      88                 :   }
      89               0 : }
      90                 : 
      91               0 : nsFont::nsFont(const nsFont& aOther)
      92               0 :   : name(aOther.name)
      93                 : {
      94               0 :   style = aOther.style;
      95               0 :   systemFont = aOther.systemFont;
      96               0 :   variant = aOther.variant;
      97               0 :   weight = aOther.weight;
      98               0 :   stretch = aOther.stretch;
      99               0 :   decorations = aOther.decorations;
     100               0 :   size = aOther.size;
     101               0 :   sizeAdjust = aOther.sizeAdjust;
     102               0 :   featureSettings = aOther.featureSettings;
     103               0 :   languageOverride = aOther.languageOverride;
     104               0 : }
     105                 : 
     106               0 : nsFont::nsFont()
     107                 : {
     108               0 : }
     109                 : 
     110               0 : nsFont::~nsFont()
     111                 : {
     112               0 : }
     113                 : 
     114               0 : bool nsFont::BaseEquals(const nsFont& aOther) const
     115                 : {
     116               0 :   if ((style == aOther.style) &&
     117                 :       (systemFont == aOther.systemFont) &&
     118                 :       (weight == aOther.weight) &&
     119                 :       (stretch == aOther.stretch) &&
     120                 :       (size == aOther.size) &&
     121                 :       (sizeAdjust == aOther.sizeAdjust) &&
     122               0 :       name.Equals(aOther.name, nsCaseInsensitiveStringComparator()) &&
     123               0 :       (featureSettings == aOther.featureSettings) &&
     124               0 :       (languageOverride == aOther.languageOverride)) {
     125               0 :     return true;
     126                 :   }
     127               0 :   return false;
     128                 : }
     129                 : 
     130               0 : bool nsFont::Equals(const nsFont& aOther) const
     131                 : {
     132               0 :   if (BaseEquals(aOther) &&
     133                 :       (variant == aOther.variant) &&
     134                 :       (decorations == aOther.decorations)) {
     135               0 :     return true;
     136                 :   }
     137               0 :   return false;
     138                 : }
     139                 : 
     140               0 : nsFont& nsFont::operator=(const nsFont& aOther)
     141                 : {
     142               0 :   name = aOther.name;
     143               0 :   style = aOther.style;
     144               0 :   systemFont = aOther.systemFont;
     145               0 :   variant = aOther.variant;
     146               0 :   weight = aOther.weight;
     147               0 :   stretch = aOther.stretch;
     148               0 :   decorations = aOther.decorations;
     149               0 :   size = aOther.size;
     150               0 :   sizeAdjust = aOther.sizeAdjust;
     151               0 :   featureSettings = aOther.featureSettings;
     152               0 :   languageOverride = aOther.languageOverride;
     153               0 :   return *this;
     154                 : }
     155                 : 
     156               0 : static bool IsGenericFontFamily(const nsString& aFamily)
     157                 : {
     158                 :   PRUint8 generic;
     159               0 :   nsFont::GetGenericID(aFamily, &generic);
     160               0 :   return generic != kGenericFont_NONE;
     161                 : }
     162                 : 
     163                 : const PRUnichar kNullCh       = PRUnichar('\0');
     164                 : const PRUnichar kSingleQuote  = PRUnichar('\'');
     165                 : const PRUnichar kDoubleQuote  = PRUnichar('\"');
     166                 : const PRUnichar kComma        = PRUnichar(',');
     167                 : 
     168               0 : bool nsFont::EnumerateFamilies(nsFontFamilyEnumFunc aFunc, void* aData) const
     169                 : {
     170                 :   const PRUnichar *p, *p_end;
     171               0 :   name.BeginReading(p);
     172               0 :   name.EndReading(p_end);
     173               0 :   nsAutoString family;
     174                 : 
     175               0 :   while (p < p_end) {
     176               0 :     while (nsCRT::IsAsciiSpace(*p))
     177               0 :       if (++p == p_end)
     178               0 :         return true;
     179                 : 
     180                 :     bool generic;
     181               0 :     if (*p == kSingleQuote || *p == kDoubleQuote) {
     182                 :       // quoted font family
     183               0 :       PRUnichar quoteMark = *p;
     184               0 :       if (++p == p_end)
     185               0 :         return true;
     186               0 :       const PRUnichar *nameStart = p;
     187                 : 
     188                 :       // XXX What about CSS character escapes?
     189               0 :       while (*p != quoteMark)
     190               0 :         if (++p == p_end)
     191               0 :           return true;
     192                 : 
     193               0 :       family = Substring(nameStart, p);
     194               0 :       generic = false;
     195                 : 
     196               0 :       while (++p != p_end && *p != kComma)
     197               0 :         /* nothing */ ;
     198                 : 
     199                 :     } else {
     200                 :       // unquoted font family
     201               0 :       const PRUnichar *nameStart = p;
     202               0 :       while (++p != p_end && *p != kComma)
     203                 :         /* nothing */ ;
     204                 : 
     205               0 :       family = Substring(nameStart, p);
     206               0 :       family.CompressWhitespace(false, true);
     207               0 :       generic = IsGenericFontFamily(family);
     208                 :     }
     209                 : 
     210               0 :     if (!family.IsEmpty() && !(*aFunc)(family, generic, aData))
     211               0 :       return false;
     212                 : 
     213               0 :     ++p; // may advance past p_end
     214                 :   }
     215                 : 
     216               0 :   return true;
     217                 : }
     218                 : 
     219               0 : static bool FontEnumCallback(const nsString& aFamily, bool aGeneric, void *aData)
     220                 : {
     221               0 :   *((nsString*)aData) = aFamily;
     222               0 :   return false;
     223                 : }
     224                 : 
     225               0 : void nsFont::GetFirstFamily(nsString& aFamily) const
     226                 : {
     227               0 :   EnumerateFamilies(FontEnumCallback, &aFamily);
     228               0 : }
     229                 : 
     230                 : /*static*/
     231               0 : void nsFont::GetGenericID(const nsString& aGeneric, PRUint8* aID)
     232                 : {
     233               0 :   *aID = kGenericFont_NONE;
     234               0 :   if (aGeneric.LowerCaseEqualsLiteral("-moz-fixed"))      *aID = kGenericFont_moz_fixed;
     235               0 :   else if (aGeneric.LowerCaseEqualsLiteral("serif"))      *aID = kGenericFont_serif;
     236               0 :   else if (aGeneric.LowerCaseEqualsLiteral("sans-serif")) *aID = kGenericFont_sans_serif;
     237               0 :   else if (aGeneric.LowerCaseEqualsLiteral("cursive"))    *aID = kGenericFont_cursive;
     238               0 :   else if (aGeneric.LowerCaseEqualsLiteral("fantasy"))    *aID = kGenericFont_fantasy;
     239               0 :   else if (aGeneric.LowerCaseEqualsLiteral("monospace"))  *aID = kGenericFont_monospace;
     240               0 : }

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