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1 /* |
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2 * Copyright (c) 2006-2008 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 |
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20 #include "uiacceltk/HuiCanvasCmdBufferReader.h" |
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21 #include "uiacceltk/HuiUtil.h" |
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22 |
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23 // --------------------------------------------------------------------------- |
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24 // Constructor |
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25 // --------------------------------------------------------------------------- |
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26 // |
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27 CHuiCanvasCmdBufferReader::CHuiCanvasCmdBufferReader() |
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28 { |
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29 } |
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30 |
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31 // --------------------------------------------------------------------------- |
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32 // Destructor |
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33 // --------------------------------------------------------------------------- |
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34 // |
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35 CHuiCanvasCmdBufferReader::~CHuiCanvasCmdBufferReader() |
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36 { |
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37 iStream.Close(); |
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38 |
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39 delete iCachedText; |
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40 } |
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41 |
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42 // --------------------------------------------------------------------------- |
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43 // InitL |
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44 // --------------------------------------------------------------------------- |
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45 // |
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46 void CHuiCanvasCmdBufferReader::Init( TPtr8& aDes,TInt aLength) |
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47 { |
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48 iStream.Close(); |
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49 if (aDes.Ptr()) |
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50 { |
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51 iStream.Open( aDes.Ptr(), aLength ); |
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52 delete iCachedText; |
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53 iCachedText = NULL; |
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54 iBasePtr = &aDes; |
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55 #ifdef _DEBUG |
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56 iBufferIndex = 0; |
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57 iBufferLength = aLength; |
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58 #endif |
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59 } |
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60 } |
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61 |
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62 // --------------------------------------------------------------------------- |
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63 // ReadInt32L |
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64 // --------------------------------------------------------------------------- |
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65 // |
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66 void CHuiCanvasCmdBufferReader::ReadInt32L( TInt& aValue ) |
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67 { |
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68 aValue = iStream.ReadInt32L(); |
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69 #ifdef _DEBUG |
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70 iBufferIndex += sizeof(TInt32); |
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71 #endif |
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72 } |
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73 |
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74 // --------------------------------------------------------------------------- |
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75 // ReadPointL |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 void CHuiCanvasCmdBufferReader::ReadPointL( TPoint& aPoint ) |
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79 { |
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80 iStream.ReadL( (TUint8*)&(aPoint.iX), sizeof( TInt32 ) * 2 ); |
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81 } |
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82 // --------------------------------------------------------------------------- |
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83 // ReadRectL |
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84 // --------------------------------------------------------------------------- |
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85 // |
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86 void CHuiCanvasCmdBufferReader::ReadRectL( TRect& aRect ) |
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87 { |
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88 iStream.ReadL( (TUint8*)&(aRect.iTl.iX), sizeof( TInt32) * 4 ); |
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89 } |
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90 |
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91 // --------------------------------------------------------------------------- |
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92 // ReadBitmapLC |
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93 // --------------------------------------------------------------------------- |
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94 // |
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95 void CHuiCanvasCmdBufferReader::ReadBitmapLC( CFbsBitmap*& aBitmap ) |
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96 { |
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97 TInt uid; |
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98 ReadInt32L( uid ); |
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99 aBitmap = new(ELeave)CFbsBitmap; |
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100 CleanupStack::PushL( aBitmap ); |
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101 |
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102 //TODO:Bitmap cache, check if bitmap is already in cache. Avoid call to Duplicate |
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103 //TODO: Cache needs to remove stuff, if not used. |
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104 |
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105 aBitmap->Duplicate( uid ); |
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106 } |
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107 |
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108 // --------------------------------------------------------------------------- |
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109 // ReadBitmapHandleL |
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110 // --------------------------------------------------------------------------- |
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111 // |
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112 void CHuiCanvasCmdBufferReader::ReadBitmapHandleL( TInt& aBitmapHandle ) |
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113 { |
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114 aBitmapHandle = iStream.ReadInt32L(); |
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115 } |
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116 |
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117 // --------------------------------------------------------------------------- |
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118 // ReadTextL |
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119 // --------------------------------------------------------------------------- |
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120 // |
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121 TBool CHuiCanvasCmdBufferReader::ReadTextL( TPtr& aText , THuiCanvasTextParameters& aTextParameters ) |
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122 { |
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123 TInt length = 0; |
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124 TBool useCachedText = iStream.ReadInt8L(); |
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125 if ( !useCachedText ) |
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126 { |
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127 length = iStream.ReadInt32L() / 2 ; |
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128 TInt startPadding = iStream.ReadInt8L(); |
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129 TInt endPadding = iStream.ReadInt8L(); |
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130 |
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131 TInt offset = iStream.Source()->TellL( MStreamBuf::ERead ).Offset() + startPadding; |
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132 TPtr16 ptr = TPtr16( (TUint16*)( (TInt)iBasePtr->Ptr() + offset ), length, length ); |
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133 aText.Set( ptr ); |
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134 |
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135 iStream.Source()->SeekL( MStreamBuf::ERead, TStreamPos( offset + length * 2 + endPadding )); |
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136 if ( !iCachedText ) |
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137 { |
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138 iCachedText = new(ELeave)TPtr16( ptr ); |
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139 } |
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140 else |
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141 { |
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142 iCachedText->Set( ptr ); |
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143 } |
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144 } |
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145 else |
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146 { |
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147 aText.Set( *iCachedText ); |
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148 } |
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149 TInt8 textParameters = iStream.ReadInt8L(); |
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150 switch ( textParameters ) |
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151 { |
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152 case 1: |
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153 { |
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154 // Is there text parameters |
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155 aTextParameters.iStart = iStream.ReadInt32L(); |
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156 aTextParameters.iEnd = iStream.ReadInt32L(); |
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157 aTextParameters.iFlags = iStream.ReadUint16L(); |
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158 if ( aTextParameters.iStart >= aTextParameters.iEnd ) |
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159 { |
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160 return EFalse; |
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161 } |
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162 break; |
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163 } |
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164 case 2: |
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165 { |
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166 aTextParameters.iStart = 0; |
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167 aTextParameters.iEnd = length / 2; |
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168 aTextParameters.iFlags = 0; |
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169 break; |
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170 } |
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171 default: // 0 |
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172 { |
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173 aTextParameters.iStart = 0; |
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174 aTextParameters.iEnd = KMaxTInt; |
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175 aTextParameters.iFlags = 0; |
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176 break; |
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177 } |
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178 } |
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179 return ETrue; |
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180 } |
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181 |
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182 // --------------------------------------------------------------------------- |
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183 // ReadPointArrayL, NOT TESTED |
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184 // --------------------------------------------------------------------------- |
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185 // |
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186 void CHuiCanvasCmdBufferReader::ReadPointArrayL( CArrayFix<TPoint>*& aPointArray ) |
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187 { |
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188 TInt count = iStream.ReadInt32L(); |
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189 TInt index = 0; |
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190 aPointArray = new(ELeave)CArrayFixFlat<TPoint>(count); |
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191 CleanupStack::PushL( aPointArray ); |
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192 while( index < count ) |
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193 { |
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194 TPoint point = TPoint(0,0); |
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195 ReadPointL( point ); |
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196 aPointArray->AppendL( point ); |
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197 index++; |
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198 } |
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199 CleanupStack::Pop( aPointArray ); |
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200 } |
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201 |
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202 // --------------------------------------------------------------------------- |
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203 // ReadPointArrayL, NOT TESTED |
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204 // --------------------------------------------------------------------------- |
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205 // |
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206 void CHuiCanvasCmdBufferReader::ReadPointArrayL( TPoint*& aPointArray, TInt& aNumPoints ) |
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207 { |
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208 ReadInt32L( aNumPoints ); |
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209 TInt index = 0; |
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210 aPointArray = new(ELeave)TPoint[aNumPoints]; |
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211 CleanupStack::PushL( aPointArray ); |
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212 |
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213 while( index < aNumPoints ) |
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214 { |
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215 TPoint* point = new(ELeave)TPoint(); |
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216 CleanupStack::PushL( point ); |
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217 ReadPointL( *point ); |
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218 aPointArray[index]= *point; |
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219 CleanupStack::Pop( point ); |
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220 index++; |
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221 } |
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222 CleanupStack::Pop( aPointArray ); |
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223 } |
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224 |
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225 // --------------------------------------------------------------------------- |
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226 // ReadPointArrayL - NOT TESTED |
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227 // --------------------------------------------------------------------------- |
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228 // |
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229 void CHuiCanvasCmdBufferReader::DeletePointArrayL( TPoint*& aPointArray, TInt& aNumPoints ) |
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230 { |
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231 TInt index = 0; |
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232 while( index < aNumPoints ) |
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233 { |
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234 delete &(aPointArray[index]); |
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235 index++; |
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236 } |
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237 delete aPointArray; |
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238 aPointArray = NULL; |
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239 } |
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240 |
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241 // --------------------------------------------------------------------------- |
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242 // ReadRegionL |
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243 // --------------------------------------------------------------------------- |
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244 // |
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245 void CHuiCanvasCmdBufferReader::ReadRegionL( RRegion& aRegion ) |
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246 { |
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247 aRegion.Clear(); |
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248 TRect rect; |
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249 TInt count; |
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250 ReadInt32L( count );// rect count |
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251 for (TInt i = 0 ; i < count ; i++ ) |
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252 { |
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253 ReadRectL( rect ); |
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254 aRegion.AddRect( rect ); |
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255 } |
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256 } |
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257 |
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258 // --------------------------------------------------------------------------- |
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259 // ReadColorL |
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260 // --------------------------------------------------------------------------- |
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261 // |
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262 void CHuiCanvasCmdBufferReader::ReadColorL( TRgb& aColor ) |
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263 { |
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264 aColor.SetInternal( iStream.ReadUint32L()); |
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265 } |
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266 |
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267 // --------------------------------------------------------------------------- |
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268 // Stream |
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269 // --------------------------------------------------------------------------- |
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270 // |
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271 RMemReadStream& CHuiCanvasCmdBufferReader::Stream() |
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272 { |
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273 return iStream; |
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274 } |
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275 |