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1 /* |
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2 * Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <s32file.h> |
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20 #include <fntstore.h> |
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21 #include "FNTBODY.H" |
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22 #include <graphics/openfontconstants.h> |
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23 |
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24 CFontStoreFile::CFontStoreFile() |
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25 : iCollectionUid(KNullUid), |
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26 iUsageCount(1), |
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27 iFileStore(NULL), |
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28 iFileAddress(0), |
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29 iDataStreamId(KNullStreamId) |
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30 { |
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31 } |
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32 |
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33 void CFontStoreFile::ConstructL(const TParse& aParse,RFs& aFs) |
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34 { |
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35 TInt drive; |
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36 User::LeaveIfError(RFs::CharToDrive(aParse.Drive()[0], drive)); |
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37 TDriveInfo driveinfo; |
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38 User::LeaveIfError(aFs.Drive(driveinfo, drive)); |
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39 RFile file; |
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40 |
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41 // store the filename |
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42 iFullName = aParse.FullName().AllocL(); |
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43 User::LeaveIfError(file.Open(aFs, *iFullName, EFileStream | EFileRead | EFileShareReadersOnly)); |
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44 |
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45 // check to see if the fonts are stored on ROM. Note that NAND != rom so font files in NAND devices |
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46 // must be handled as if they were in RAM. A NULL pointer returned by IsFileInRom means its RAM |
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47 |
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48 if (aFs.IsFileInRom(*iFullName)!=NULL) |
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49 { |
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50 // fonts are stored on a XIP (execute in place) device |
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51 TInt ret = file.Seek(ESeekAddress, iFileAddress); |
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52 |
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53 if (ret != KErrNone) |
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54 { |
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55 file.Close(); |
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56 User::Leave(ret); |
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57 } |
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58 } |
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59 |
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60 // convert RFile into a CDirectFileStore |
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61 CDirectFileStore* fileStore = CDirectFileStore::FromLC(file); |
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62 |
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63 if (fileStore->Type()[1] != TUid::Uid(KFontStoreFileUidVal)) |
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64 User::Leave(KErrNotSupported); |
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65 TStreamId headerid = fileStore->Root(); |
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66 RStoreReadStream stream; |
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67 stream.OpenLC(*fileStore, headerid); |
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68 TInt fnttranversion = stream.ReadInt32L(); |
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69 // This works for version 42 (with new metrics) and for earlier versions |
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70 // which will synthesize the required metrics. It may have to be changed |
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71 // if the version number is incremented again. |
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72 if (fnttranversion < (KFnttranVersion - 1) && fnttranversion != KFnttran7650Version) |
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73 User::Leave(KErrNotSupported); |
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74 iFontVersion = fnttranversion; |
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75 stream >> iCollectionUid; |
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76 iKPixelAspectRatio = stream.ReadInt32L(); |
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77 stream >> iDataStreamId; |
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78 CleanupStack::PopAndDestroy(&stream); // close root stream |
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79 // ensure font data stream can be opened |
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80 stream.OpenLC(*fileStore, iDataStreamId); |
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81 CleanupStack::PopAndDestroy(&stream); // close font stream |
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82 // transfer ownership of fileStore |
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83 CleanupStack::Pop(fileStore); |
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84 iFileStore = fileStore; |
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85 } |
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86 |
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87 CFontStoreFile* CFontStoreFile::NewL(const TParse& aParse, RFs& aFs) |
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88 { |
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89 CFontStoreFile* fontstorefile = new(ELeave) CFontStoreFile; |
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90 CleanupStack::PushL(fontstorefile); |
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91 fontstorefile->ConstructL(aParse, aFs); |
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92 CleanupStack::Pop(); |
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93 return fontstorefile; |
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94 } |
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95 |
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96 CFontStoreFile::~CFontStoreFile() |
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97 { |
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98 delete iFullName; |
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99 iFullName = NULL; |
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100 delete iFileStore; |
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101 iFileStore = NULL; |
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102 } |
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103 |
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104 TBitmapCodeSection::TBitmapCodeSection() |
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105 : TCodeSection(), |
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106 iCharacterData(), |
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107 iBitmapData() |
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108 { |
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109 } |
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110 |
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111 //This method is called from CFontBitmap::InternalizeL. |
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112 //We have to read stream IDs from the stream, not offsets. |
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113 //Obviously the method is called once per life time of |
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114 //CFontBitmap instance. |
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115 void TBitmapCodeSection::InternalizeL(RReadStream &aStream) |
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116 { |
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117 iStart = aStream.ReadUint16L(); |
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118 iEnd = aStream.ReadUint16L(); |
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119 aStream >> iCharacterData.iOffsetsId; |
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120 aStream >> iBitmapData.iBitmapId; |
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121 } |
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122 |
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123 //This method is called from CFontBitmap::RestoreComponentsL - |
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124 //if the CFontBitmap instance is in RAM and CFontBitmap::iComponentsRestored is EFalse. |
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125 //We use here stream IDs, not offsets. |
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126 //If the memory allocation for the offsets doesn't fail - aAllocMemCounter is incremented |
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127 //After calling of TBitmapCodeSection::InternalizeOffsetsL character metrics streamID is no more valid - |
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128 //we have valid character metrics offset into RAM memory. |
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129 void TBitmapCodeSection::InternalizeOffsetsL(const CStreamStore& aStreamStore, RHeap* aHeap, TInt& aAllocMemCounter) |
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130 { |
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131 RStoreReadStream stream; |
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132 stream.OpenLC(aStreamStore, iCharacterData.iOffsetsId); |
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133 |
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134 TInt size = stream.ReadInt32L(); |
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135 TBitmapFontCharacterOffset* characterOffsetsList = (TBitmapFontCharacterOffset*)aHeap->AllocL(sizeof(TBitmapFontCharacterOffset) * size); |
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136 aAllocMemCounter++; |
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137 iCharacterData.iCharacterOffsetsListOffset = TInt(characterOffsetsList) - TInt(this); |
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138 TBitmapFontCharacterOffset* pEnd = characterOffsetsList + size; |
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139 for (TBitmapFontCharacterOffset* p = characterOffsetsList; p < pEnd; p++) |
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140 { |
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141 p->InternalizeL(stream); |
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142 } |
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143 |
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144 CleanupStack::PopAndDestroy(); |
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145 } |
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146 |
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147 //This method is called from CFontBitmap::RestoreComponentsL - |
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148 //if the CFontBitmap instance is in RAM and CFontBitmap::iComponentsRestored is EFalse. |
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149 //We use here stream IDs, not offsets. |
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150 //If the memory allocation for the bitmap doesn't fail - aAllocMemCounter is incremented |
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151 //After calling of TBitmapCodeSection::InternalizeBitmapL bitmap streamID is no more valid - |
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152 //we have valid bitmap offset into RAM memory. |
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153 void TBitmapCodeSection::InternalizeBitmapL(const CStreamStore& aStreamStore, RHeap* aHeap, TInt& aAllocMemCounter) |
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154 { |
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155 RStoreReadStream stream; |
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156 stream.OpenLC(aStreamStore, iBitmapData.iBitmapId); |
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157 |
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158 TInt size = stream.ReadInt32L(); |
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159 TUint8* bitmap = (TUint8*)aHeap->AllocL(size); |
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160 aAllocMemCounter++; |
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161 iBitmapData.iBitmapOffset = TInt(bitmap) - TInt(this); |
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162 stream.ReadL(bitmap, size); |
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163 |
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164 CleanupStack::PopAndDestroy(); |
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165 } |
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166 |
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167 //This method is called from CFontBitmap::InternalizeL if the |
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168 //CFontBitmap instance is in ROM. |
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169 //We use here stream IDs to calculate offsets. |
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170 //After calling of TBitmapCodeSection::FixUpComponents streamIDs are no more valid - |
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171 //we have valid offsets into ROM memory. |
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172 //Obviously the method is called once per life time of |
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173 //CFontBitmap instance. |
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174 void TBitmapCodeSection::FixUpComponents(TInt aFileAddress) |
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175 { |
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176 TBitmapFontCharacterOffset* characterOffsetsList = (TBitmapFontCharacterOffset*) (aFileAddress + sizeof(TInt) + iCharacterData.iOffsetsId); |
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177 iCharacterData.iCharacterOffsetsListOffset = TInt(characterOffsetsList); |
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178 TUint8* bitmap = (TUint8*) (aFileAddress + sizeof(TInt) + iBitmapData.iBitmapId); |
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179 iBitmapData.iBitmapOffset = TInt(bitmap); |
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180 } |
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181 |
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182 //This method is caled from CFontBitmap::DeleteComponents(), |
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183 //only if the CFontBitmap instance is in RAM. |
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184 void TBitmapCodeSection::DeleteOffsets(RHeap* aHeap) |
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185 { |
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186 TBitmapFontCharacterOffset* charactersOffsetsList = CharacterOffsetsList(ETrue); |
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187 if(TUint32(this) != TUint32(charactersOffsetsList)) |
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188 { |
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189 aHeap->Free(charactersOffsetsList); |
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190 } |
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191 } |
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192 |
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193 //This method is caled from CFontBitmap::DeleteComponents(), |
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194 //only if the CFontBitmap instance is in RAM. |
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195 void TBitmapCodeSection::DeleteBitmap(RHeap* aHeap) |
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196 { |
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197 TUint8* bitmap = Bitmap(ETrue); |
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198 if(TUint32(this) != TUint32(bitmap)) |
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199 { |
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200 aHeap->Free(bitmap); |
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201 } |
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202 } |
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203 |
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204 TBitmapFontCharacterOffset* TBitmapCodeSection::CharacterOffsetsList(TBool aIsInRAM) const |
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205 { |
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206 return reinterpret_cast <TBitmapFontCharacterOffset*> |
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207 (iCharacterData.iCharacterOffsetsListOffset + (aIsInRAM ? TInt(this) : 0)); |
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208 } |
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209 |
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210 TUint8* TBitmapCodeSection::Bitmap(TBool aIsInRAM) const |
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211 { |
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212 return reinterpret_cast <TUint8*> |
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213 (iBitmapData.iBitmapOffset + (aIsInRAM ? TInt(this) : 0)); |
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214 } |
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215 |
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216 TCharacterMetricsTable::TCharacterMetricsTable(RHeap* aHeap) |
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217 : iHeap(aHeap), |
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218 iMetricsStartId(KNullStreamId), |
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219 iCharacterMetricsStartPtr(0), |
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220 iNumberOfMetrics(0), |
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221 iMetricsOnHeap(EFalse) |
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222 {} |
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223 |
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224 void TCharacterMetricsTable::InternalizeL(RReadStream& aStream) |
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225 { |
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226 iMetricsStartId = aStream.ReadInt32L(); |
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227 iNumberOfMetrics = aStream.ReadInt32L(); |
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228 } |
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229 |
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230 void TCharacterMetricsTable::InternalizeMetricsL(RReadStream& aStream) |
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231 { |
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232 aStream.ReadInt32L(); // size |
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233 TBitmapFontCharacterMetrics* charactermetricslist = static_cast<TBitmapFontCharacterMetrics*>(iHeap->AllocL(sizeof(TBitmapFontCharacterMetrics) * iNumberOfMetrics)); |
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234 iMetricsOnHeap = ETrue; |
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235 // Offset from this to location on the heap ('cos the file is not in ROM) |
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236 iCharacterMetricsStartPtr = reinterpret_cast<TInt>(charactermetricslist) - reinterpret_cast<TInt>(this); |
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237 TBitmapFontCharacterMetrics* pEnd = charactermetricslist + iNumberOfMetrics; |
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238 for (TBitmapFontCharacterMetrics* p = charactermetricslist; p < pEnd; p++) |
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239 { |
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240 p->InternalizeL(aStream); |
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241 } |
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242 } |
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243 |
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244 void TCharacterMetricsTable::RestoreL(const CStreamStore& aStreamStore) |
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245 { |
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246 if (iCharacterMetricsStartPtr == 0) |
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247 { // We haven't already read it in from RAM file |
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248 RStoreReadStream stream; |
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249 stream.OpenLC(aStreamStore, iMetricsStartId); |
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250 InternalizeMetricsL(stream); |
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251 CleanupStack::PopAndDestroy(); |
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252 } |
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253 } |
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254 |
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255 void TCharacterMetricsTable::FixUp(TInt aFileAddress) |
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256 { |
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257 TBitmapFontCharacterMetrics* charactermetricslist = reinterpret_cast<TBitmapFontCharacterMetrics*>(aFileAddress + sizeof(TInt) + iMetricsStartId.Value()); |
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258 iCharacterMetricsStartPtr = TInt(charactermetricslist); // Ptr to location in a ROM file |
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259 iMetricsStartId = KNullStreamId; |
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260 iMetricsOnHeap = EFalse; |
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261 } |
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262 |
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263 void TCharacterMetricsTable::Delete() |
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264 { // This routine is only called if the font file is in RAM, not ROM, and therefore the metrics have been stashed on the heap |
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265 if (iMetricsOnHeap && iCharacterMetricsStartPtr) |
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266 { |
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267 iHeap->Free(reinterpret_cast<TAny*>(MetricsFromOffset(0))); |
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268 iCharacterMetricsStartPtr = 0; |
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269 iMetricsOnHeap = EFalse; |
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270 } |
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271 } |
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272 |
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273 const TBitmapFontCharacterMetrics* TCharacterMetricsTable::Metric(TInt aIndex) const |
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274 { |
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275 __ASSERT_DEBUG((aIndex >= 0) && (aIndex <= iNumberOfMetrics), Panic(EFntMetricsIndexOutOfBounds)); |
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276 // Sometimes the start ptr is to a metrics heap item and sometimes it points into a ROM file |
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277 if (iMetricsOnHeap) |
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278 { |
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279 // Start ptr is to metrics heap item |
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280 return MetricsFromOffset(aIndex); |
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281 } |
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282 else |
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283 { |
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284 // Start ptr is to a file in ROM |
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285 return reinterpret_cast<const TBitmapFontCharacterMetrics*> (iCharacterMetricsStartPtr + (aIndex * sizeof(TBitmapFontCharacterMetrics))); |
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286 } |
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287 } |
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288 |
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289 TInt TCharacterMetricsTable::NumberOfMetrics() const |
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290 { |
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291 return iNumberOfMetrics; |
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292 } |
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293 |
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294 TBitmapFontCharacterMetrics* TCharacterMetricsTable::MetricsFromOffset(TInt aIndex) const |
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295 { |
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296 __ASSERT_DEBUG(iMetricsOnHeap,Panic(EFntMetricsNotOnHeap)); |
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297 return reinterpret_cast<TBitmapFontCharacterMetrics*>(reinterpret_cast<TInt>(this) + iCharacterMetricsStartPtr+ (aIndex * sizeof(TBitmapFontCharacterMetrics))); |
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298 } |
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299 |
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300 CFontBitmap::CFontBitmap(RHeap* aHeap, CFontStoreFile* aFontStoreFile) |
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301 : iHeap(aHeap), |
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302 iFontStoreFileOffset(0), |
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303 iUid(KNullUid), |
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304 iPosture(0), |
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305 iStrokeWeight(0), |
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306 iIsProportional(0), |
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307 iIsInRAM(!aFontStoreFile->iFileAddress), |
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308 iUsageCount(1), |
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309 iCellHeightInPixels(0), |
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310 iAscentInPixels(0), |
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311 iMaxCharWidthInPixels(0), |
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312 iMaxNormalCharWidthInPixels(0), |
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313 iBitmapEncoding(0), |
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314 iNumCodeSections(0), |
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315 iCodeSectionListOffset(0), |
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316 iCharacterMetricsTable(aHeap), |
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317 iComponentsRestored(EFalse), |
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318 iAllocMemCounter_Offsets(0), |
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319 iAllocMemCounter_Bitmaps(0), |
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320 iFontCapitalAscent(0), |
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321 iFontMaxAscent(0), |
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322 iFontStandardDescent(0), |
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323 iFontMaxDescent(0), |
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324 iFontLineGap(0) |
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325 { |
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326 iFontStoreFileOffset = TInt(aFontStoreFile) - TInt(this); |
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327 } |
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328 |
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329 void CFontBitmap::InternalizeL(RReadStream &aStream, TInt aFontVersion) |
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330 { |
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331 aStream >> iUid; |
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332 iPosture = aStream.ReadInt8L(); |
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333 iStrokeWeight = aStream.ReadInt8L(); |
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334 iIsProportional = aStream.ReadInt8L(); |
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335 iCellHeightInPixels = aStream.ReadInt8L(); |
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336 iAscentInPixels = aStream.ReadInt8L(); |
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337 iMaxCharWidthInPixels = aStream.ReadInt8L(); |
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338 iMaxNormalCharWidthInPixels = aStream.ReadInt8L(); |
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339 if ( aFontVersion >= KFnttranVersion ) |
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340 { // read the new metrics in |
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341 iFontCapitalAscent = aStream.ReadInt8L(); |
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342 iFontMaxAscent = aStream.ReadInt8L(); |
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343 iFontStandardDescent = aStream.ReadInt8L(); |
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344 iFontMaxDescent = aStream.ReadInt8L(); |
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345 iFontLineGap = aStream.ReadInt8L(); |
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346 } |
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347 else // synthesize the extra metrics (data compatibility with third party bitmap fonts for old phones) |
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348 { |
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349 iFontMaxAscent = iFontCapitalAscent = iAscentInPixels; |
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350 iFontMaxDescent = iFontStandardDescent = iCellHeightInPixels - iAscentInPixels; |
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351 iFontLineGap = ( ( iCellHeightInPixels * 12 ) + 5) / 10; // 1.2 times design height |
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352 } |
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353 iBitmapEncoding = aStream.ReadInt32L(); |
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354 iCharacterMetricsTable.InternalizeL(aStream); |
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355 const TBool fixup = FontStoreFile()->iFileAddress; |
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356 if (fixup) |
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357 { |
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358 iCharacterMetricsTable.FixUp(FontStoreFile()->iFileAddress); |
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359 } |
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360 iNumCodeSections = aStream.ReadInt32L(); |
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361 TBitmapCodeSection* codesectionlist = (TBitmapCodeSection*)User::LeaveIfNull(iHeap->AllocL(iNumCodeSections * sizeof(TBitmapCodeSection))); |
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362 iCodeSectionListOffset = TInt(codesectionlist) - TInt(this); |
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363 for (TInt i = 0; i < iNumCodeSections; i++) |
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364 { |
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365 new(codesectionlist + i) TBitmapCodeSection; |
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366 codesectionlist[i].InternalizeL(aStream); |
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367 if (fixup) |
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368 codesectionlist[i].FixUpComponents(FontStoreFile()->iFileAddress); |
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369 } |
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370 } |
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371 |
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372 void CFontBitmap::UseL() |
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373 { |
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374 // Note object is created with a Usage Count of 1. |
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375 // So incrementing to 2 normally indicates the first external reference. |
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376 iUsageCount++; |
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377 if (iUsageCount == 2) |
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378 { |
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379 RestoreComponentsL(); |
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380 } |
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381 } |
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382 |
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383 void CFontBitmap::Release() |
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384 { |
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385 iUsageCount--; |
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386 if (!iUsageCount) |
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387 { // object and all its users have closed |
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388 delete this; |
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389 } |
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390 } |
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391 |
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392 /* |
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393 Get the metrics for a given character. |
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394 Return aBytes as null if the character aCode doesn't exist in the font. |
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395 */ |
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396 TBitmapFontCharacterMetrics CFontBitmap::CharacterMetrics(TInt aCode, const TUint8*& aBytes) const |
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397 { |
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398 const TBitmapCodeSection* matchSection = NULL; |
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399 const TBitmapCodeSection* const lastSection = CodeSectionList() + iNumCodeSections - 1; |
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400 |
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401 TBitmapFontCharacterOffset offset; |
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402 aBytes = NULL; |
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403 |
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404 TBitmapFontCharacterMetrics metrics; |
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405 const TBitmapCodeSection* startSearchBand = CodeSectionList(); |
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406 TInt numCodeSectionsRemaining = iNumCodeSections; |
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407 while (numCodeSectionsRemaining >= 1) |
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408 { |
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409 TInt halfNumCodeSectionsRemaining = numCodeSectionsRemaining/2; |
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410 const TBitmapCodeSection* centralSearchBand = startSearchBand+halfNumCodeSectionsRemaining; |
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411 if ((aCode >= centralSearchBand->iStart) && (aCode <= centralSearchBand->iEnd)) |
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412 { |
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413 matchSection = centralSearchBand; |
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414 break; |
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415 } |
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416 else if ((aCode < centralSearchBand->iStart) || (centralSearchBand == lastSection)) |
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417 numCodeSectionsRemaining = halfNumCodeSectionsRemaining; |
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418 else |
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419 { |
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420 startSearchBand = centralSearchBand + 1; |
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421 numCodeSectionsRemaining -= halfNumCodeSectionsRemaining + 1; |
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422 } |
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423 } |
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424 |
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425 if (matchSection) |
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426 { |
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427 offset =* ((matchSection->CharacterOffsetsList(iIsInRAM)) + (aCode-matchSection->iStart)); |
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428 |
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429 // Fill characters within code section. |
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430 // Recursive call ensures that a valid metric is always returned. |
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431 if (offset.iBitmapOffset == KFillCharacterOffset) |
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432 { |
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433 return CharacterMetrics(KReplacementCharacter, aBytes); |
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434 } |
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435 |
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436 aBytes = matchSection->Bitmap(iIsInRAM) + offset.iBitmapOffset; |
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437 |
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438 // retrieve metric index from encoded 1 or 2 bytes |
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439 TInt index = 0; |
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440 TUint8 byte1 = (TUint8)*aBytes; |
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441 const TInt switchMask = 0x1; |
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442 const TBool oneByteIndex =! (byte1 & switchMask); |
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443 byte1 = TUint8(byte1 >> 1); |
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444 if (oneByteIndex) |
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445 { |
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446 index = byte1; |
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447 aBytes += 1; |
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448 } |
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449 else |
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450 { |
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451 const TUint8 byte2 = (TUint8)(*(aBytes + 1)); |
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452 index = byte1 + (byte2 * 128); |
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453 aBytes += 2; |
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454 } |
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455 // Copy metric from table |
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456 metrics =* iCharacterMetricsTable.Metric(index); |
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457 } |
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458 return metrics; |
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459 } |
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460 |
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461 void CFontBitmap::operator delete(TAny *aThis) |
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462 { |
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463 if (((CFontBitmap *)aThis)->iHeap) |
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464 { |
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465 ((CFontBitmap *)aThis)->iHeap->Free(aThis); |
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466 } |
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467 } |
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468 |
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469 void CFontBitmap::SetPosture(TFontPosture aPosture) |
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470 { |
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471 iPosture = (TInt8)aPosture; |
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472 } |
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473 |
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474 TFontPosture CFontBitmap::Posture() const |
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475 { |
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476 return (TFontPosture)iPosture; // iPosture is always smaller than TFontPosture |
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477 } |
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478 |
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479 void CFontBitmap::SetStrokeWeight(TFontStrokeWeight aStrokeWeight) |
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480 { |
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481 iStrokeWeight = (TInt8)aStrokeWeight; |
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482 } |
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483 |
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484 TFontStrokeWeight CFontBitmap::StrokeWeight() const |
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485 { |
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486 return (TFontStrokeWeight)iStrokeWeight; |
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487 } |
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488 |
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489 void CFontBitmap::SetIsProportional(TBool aIsProportional) |
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490 { |
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491 iIsProportional = (TInt8)aIsProportional; |
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492 } |
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493 |
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494 TBool CFontBitmap::IsProportional() const |
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495 { |
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496 return iIsProportional; |
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497 } |
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498 |
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499 CFontStoreFile* CFontBitmap::FontStoreFile() const |
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500 { |
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501 TInt fsf = TInt(this) + iFontStoreFileOffset; |
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502 return (CFontStoreFile*)fsf; |
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503 } |
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504 |
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505 CFontBitmap::~CFontBitmap() |
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506 { |
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507 DeleteComponents(); |
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508 TBitmapCodeSection* codeSectionList = CodeSectionList(); |
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509 if(TUint32(this) != TUint32(codeSectionList)) |
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510 { |
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511 iHeap->Free(codeSectionList); |
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512 } |
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513 iCodeSectionListOffset = 0; |
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514 } |
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515 |
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516 //We have to count how many offsets and bitmaps are allocated successfully because if |
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517 //some of codesection's Internalize..L fails we have to deallocate the right amount of |
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518 //data. |
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519 void CFontBitmap::RestoreComponentsL() |
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520 { |
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521 if (iIsInRAM) |
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522 { |
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523 if(!iComponentsRestored) |
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524 { |
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525 iAllocMemCounter_Offsets = 0; |
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526 iAllocMemCounter_Bitmaps = 0; |
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527 CStreamStore& store =* FontStoreFile()->iFileStore; |
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528 for (TInt i = 0; i < iNumCodeSections; i++) |
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529 { |
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530 CodeSectionList()[i].InternalizeOffsetsL(store, iHeap, iAllocMemCounter_Offsets); |
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531 CodeSectionList()[i].InternalizeBitmapL(store, iHeap, iAllocMemCounter_Bitmaps); |
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532 } |
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533 iCharacterMetricsTable.RestoreL(store); |
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534 } |
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535 iComponentsRestored = ETrue; |
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536 } |
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537 } |
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538 |
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539 void CFontBitmap::DeleteComponents() |
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540 { |
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541 if (iIsInRAM) |
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542 { |
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543 TInt i; |
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544 for (i = 0; i < iAllocMemCounter_Offsets; i++) |
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545 { |
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546 CodeSectionList()[i].DeleteOffsets(iHeap); |
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547 } |
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548 for (i = 0; i < iAllocMemCounter_Bitmaps; i++) |
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549 { |
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550 CodeSectionList()[i].DeleteBitmap(iHeap); |
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551 } |
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552 iCharacterMetricsTable.Delete(); |
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553 } |
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554 iAllocMemCounter_Offsets = 0; |
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555 iAllocMemCounter_Bitmaps = 0; |
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556 iComponentsRestored = EFalse; |
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557 } |
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558 |
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559 TBitmapCodeSection* CFontBitmap::CodeSectionList() const |
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560 { |
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561 TInt bcs = TInt(this) + iCodeSectionListOffset; |
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562 return (TBitmapCodeSection*)bcs; |
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563 } |
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564 |
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565 TTypefaceFontBitmap::TTypefaceFontBitmap() |
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566 : iTypeface(NULL), |
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567 iFontBitmap(NULL), |
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568 iHeightFactor(1), |
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569 iWidthFactor(1) |
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570 { |
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571 } |
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572 |
|
573 TTypefaceFontBitmap::TTypefaceFontBitmap(TTypeface* aTypeface,CFontBitmap* aFontBitmap) |
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574 : iTypeface(aTypeface), |
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575 iFontBitmap(aFontBitmap), |
|
576 iHeightFactor(1), |
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577 iWidthFactor(1) |
|
578 { |
|
579 } |
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580 |
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581 TInt TTypefaceFontBitmap::HeightInPixels() const |
|
582 { |
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583 return iFontBitmap->iCellHeightInPixels * iHeightFactor; |
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584 } |