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lightning-sunbird  0.9+nobinonly
nsColorNames.cpp
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
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00010  * Software distributed under the License is distributed on an "AS IS" basis,
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00014  *
00015  * The Original Code is mozilla.org code.
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00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1999
00020  * the Initial Developer. All Rights Reserved.
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00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
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00037 
00038 #include "nsColorNames.h"
00039 #include "nsString.h"
00040 #include "nsStaticNameTable.h"
00041 #include "nsReadableUtils.h"
00042 
00043 // define an array of all color names
00044 #define GFX_COLOR(_name, _value) #_name,
00045 const char* const kColorNames[] = {
00046 #include "nsColorNameList.h"
00047 };
00048 #undef GFX_COLOR
00049 
00050 // define an array of all color name values
00051 #define GFX_COLOR(_name, _value) _value,
00052 const nscolor nsColorNames::kColors[] = {
00053 #include "nsColorNameList.h"
00054 };
00055 #undef GFX_COLOR
00056 
00057 static PRInt32 gTableRefCount;
00058 static nsStaticCaseInsensitiveNameTable* gColorTable;
00059 
00060 void
00061 nsColorNames::AddRefTable(void) 
00062 {
00063   if (0 == gTableRefCount++) {
00064     NS_ASSERTION(!gColorTable, "pre existing array!");
00065     gColorTable = new nsStaticCaseInsensitiveNameTable();
00066     if (gColorTable) {
00067 #ifdef DEBUG
00068     {
00069       // let's verify the table...
00070       for (PRInt32 index = 0; index < eColorName_COUNT; ++index) {
00071         nsCAutoString temp1(kColorNames[index]);
00072         nsCAutoString temp2(kColorNames[index]);
00073         ToLowerCase(temp1);
00074         NS_ASSERTION(temp1.Equals(temp2), "upper case char in table");
00075       }
00076     }
00077 #endif      
00078       gColorTable->Init(kColorNames, eColorName_COUNT); 
00079     }
00080   }
00081 }
00082 
00083 void
00084 nsColorNames::ReleaseTable(void) 
00085 {
00086   if (0 == --gTableRefCount) {
00087     if (gColorTable) {
00088       delete gColorTable;
00089       gColorTable = nsnull;
00090     }
00091   }
00092 }
00093 
00094 nsColorName 
00095 nsColorNames::LookupName(const nsACString& aColor)
00096 {
00097   NS_ASSERTION(gColorTable, "no lookup table, needs addref");
00098   if (gColorTable) {
00099     return nsColorName(gColorTable->Lookup(aColor));
00100   }  
00101   return eColorName_UNKNOWN;
00102 }
00103 
00104 nsColorName 
00105 nsColorNames::LookupName(const nsAString& aColor)
00106 {
00107   NS_ASSERTION(gColorTable, "no lookup table, needs addref");
00108   if (gColorTable) {
00109     return nsColorName(gColorTable->Lookup(aColor));
00110   }  
00111   return eColorName_UNKNOWN;
00112 }
00113 
00114 const nsAFlatCString& 
00115 nsColorNames::GetStringValue(nsColorName aColor)
00116 {
00117   NS_ASSERTION(gColorTable, "no lookup table, needs addref");
00118   if (gColorTable) {
00119     return gColorTable->GetStringValue(PRInt32(aColor));
00120   } else {
00121     static nsDependentCString kNullStr("");
00122     return kNullStr;
00123   }
00124 }
00125