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1 /* |
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2 * Copyright (c) 2007-2007 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: This component converts CRichText style's to HuiTextStyle |
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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 #ifndef C_FSTEXTSTYLEMANAGER_H |
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20 #define C_FSTEXTSTYLEMANAGER_H |
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21 |
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22 #include <e32base.h> |
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23 #include <txtfrmat.h> |
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24 |
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25 class CAlfTextStyleManager; |
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26 |
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27 /** |
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28 * TFsTextStyleData |
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29 * |
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30 * This class is meant only for internal use of CFsTextStyleManager. It |
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31 * encapsulates the style information for storage. |
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32 * |
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33 * @since S60 v3.2 |
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34 */ |
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35 |
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36 class TFsTextStyleData |
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37 { |
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38 public: |
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39 TFsTextStyleData( const TCharFormat& aCharFormat, TInt aTextStyleID ); |
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40 |
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41 /** |
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42 * Match |
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43 * |
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44 * Method for comparing to instances of TFsTextStyleData |
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45 * |
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46 * @since S60 3.2 |
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47 * @param aFirst The first TFsTextStyleData |
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48 * @param aSecond The other TFsTextStyleData |
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49 * @return If match ETrue else EFalse |
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50 */ |
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51 static TBool Match( const TFsTextStyleData& aFirst, |
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52 const TFsTextStyleData& aSecond ); |
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53 |
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54 static TBool MatchId( const TFsTextStyleData& aFirst, |
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55 const TFsTextStyleData& aSecond ); |
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56 |
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57 public: //Data |
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58 |
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59 /** |
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60 * Stored TCharFormat |
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61 */ |
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62 const TCharFormat iCharFormat; |
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63 |
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64 /** |
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65 * Stored THuiTextStyle id |
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66 */ |
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67 TInt iTextStyleID; |
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68 }; |
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69 |
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70 |
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71 /** |
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72 * CFsTextStyleManager |
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73 * |
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74 * This class is designed to convert CRichText style definitions to |
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75 * THuiTextStyles. To avoid overlapping style definitions, all previously |
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76 * created styles are stored in a list. |
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77 * |
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78 * Example: |
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79 * @code |
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80 * |
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81 * manager = CFsTextStyleManager::NewL( Env().TextStyleManager() ); |
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82 * rText.GetChars( someText, charFormat, position ); //CRichText |
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83 * TInt styleID = manager->GetStyleIDL( charFormat ); |
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84 * visual = CHuiTextVisual::AddNewL( *iControl, iCurveLayout ); |
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85 * visual->SetTextStyle( styleID ); |
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86 * |
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87 * @endcode |
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88 * |
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89 * @since S60 v3.2 |
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90 */ |
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91 class CFsTextStyleManager : CBase |
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92 { |
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93 public: |
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94 |
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95 /** |
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96 * Two-phased constructor. |
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97 * @param aHuiTextStyleManager Reference to the CHuiTextStyleManager |
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98 */ |
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99 static CFsTextStyleManager* NewL( CAlfTextStyleManager& aAlfTextStyleManager ); |
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100 |
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101 /** |
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102 * Destructor. |
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103 */ |
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104 ~CFsTextStyleManager(); |
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105 |
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106 /** |
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107 * GetStyleIDL |
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108 * |
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109 * This is the only public method in CFsTextStyleManager. If there |
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110 * already a style that matches the given TCharFormat, the ID of this |
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111 * style is returned. If not, a new style is created. |
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112 * |
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113 * @since S60 3.2 |
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114 * @param aCharFormat Style format from CRichText |
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115 * @return ID for THuiTextStyle |
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116 */ |
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117 TInt GetStyleIDL( const TCharFormat& aCharFormat ); |
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118 |
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119 /** |
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120 * FindId |
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121 * |
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122 * The array of previously created styles is searched for matching |
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123 * TCharFormat. If not found KErrNotFound is returned. |
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124 * |
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125 * @since S60 3.2 |
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126 * @param aCharFormat Style format from CRichText |
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127 * @return ID for THuiTextStyle or KErrNotFound |
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128 */ |
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129 TInt GetStyleIDWithOpositeUnderlineL( TInt aId ); |
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130 |
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131 private: |
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132 |
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133 CFsTextStyleManager( CAlfTextStyleManager& aAlfTextStyleManager ); |
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134 |
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135 // void ConstructL(); This wasn't needed at the time |
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136 |
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137 /** |
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138 * FindId |
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139 * |
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140 * The array of previously created styles is searched for matching |
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141 * TCharFormat. If not found KErrNotFound is returned. |
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142 * |
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143 * @since S60 3.2 |
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144 * @param aCharFormat Style format from CRichText |
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145 * @return ID for THuiTextStyle or KErrNotFound |
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146 */ |
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147 TInt FindId( const TCharFormat& aCharFormat ); |
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148 |
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149 |
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150 /** |
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151 * FindPositionOfId |
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152 * |
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153 * The array of previously created styles is searched for matching |
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154 * ID. If not found KErrNotFound is returned. |
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155 * |
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156 * @since S60 3.2 |
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157 * @param ID Style format from CRichText |
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158 * @return position in table for THuiTextStyle or KErrNotFound |
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159 */ |
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160 TInt FindPositionOfId(TInt aId); |
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161 |
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162 /** |
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163 * CreateNewTextStyleL |
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164 * |
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165 * Creates a new text style using TCharFormat. |
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166 * |
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167 * @since S60 3.2 |
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168 * @param aCharFormat Style format from CRichText |
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169 * @return ID for THuiTextStyle |
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170 */ |
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171 TInt CreateNewTextStyleL( const TCharFormat& aCharFormat ); |
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172 |
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173 private: // data |
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174 |
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175 /** |
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176 * Reference to the CHuiTextStyleManager |
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177 */ |
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178 CAlfTextStyleManager& iAlfTextStyleManager; |
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179 |
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180 /** |
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181 * Array of previously created styles |
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182 */ |
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183 RArray<TFsTextStyleData> iStyles; |
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184 |
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185 }; |
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186 |
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187 #endif // C_FSTEXTSTYLEMANAGER_H |