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1 /* |
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2 * Copyright (c) 2002 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: Implementation of class AknIconSrvUtils. |
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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 FILES |
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21 |
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22 #include <fbs.h> |
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23 #include <gdi.h> |
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24 #include <bitdev.h> |
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25 #include <mifconvdefs.h> |
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26 |
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27 #include "AknIconSrvUtils.h" |
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28 #include "AknIconFormatHandler.h" |
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29 #include "AknIconLoader.h" |
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30 #include "AknIconSrv.h" |
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31 #include "AknIconFormatHandlerFactory.h" |
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32 #include "AknIconSrvDef.h" |
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33 |
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34 #include "AknBitmap.h" |
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35 // CONSTANTS |
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36 |
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37 // ================= MEMBER FUNCTIONS ========================================== |
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38 |
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39 TPtrC8 AknIconSrvUtils::InitIconDataAndHandlerLC( |
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40 CAknIconLoader* aLoader, |
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41 RPointerArray<MAknIconFormatHandler>& aHandlerList, |
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42 MAknIconFormatHandler*& aHandler, |
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43 const TAknIconParams& aParams, |
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44 TBool aAnimated ) |
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45 { |
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46 CleanupStack::PushL( TCleanupItem( CleanupFreeIcon, aLoader ) ); |
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47 |
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48 if ( aLoader->IconAnimatedL( aParams.iBitmapId ) && !aAnimated ) |
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49 { |
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50 User::Leave( KAknIconSrvCodeAnimated ); |
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51 } |
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52 |
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53 TInt type = aLoader->IconTypeL( aParams.iBitmapId ); |
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54 |
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55 #ifdef _NGATESTING |
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56 type = aLoader->GetDerivedIconTypeL(type, aParams.iFileName); |
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57 #endif |
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58 |
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59 // Check if handler is already present, if so then return with same pointer |
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60 for ( TInt lIndex = 0; lIndex < aHandlerList.Count(); lIndex++ ) |
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61 { |
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62 if ( aHandlerList[ lIndex ]->IconFormatType() == type ) |
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63 { |
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64 aHandler = aHandlerList[ lIndex ]; |
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65 break; |
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66 } |
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67 } |
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68 |
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69 // No Handler found, create one and add to list |
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70 if ( !aHandler ) |
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71 { |
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72 aHandler = AknIconFormatHandlerFactory::NewIconFormatHandlerL( type ); |
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73 aHandlerList.Append( aHandler ); |
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74 aHandler->SetAnimated( aAnimated ); |
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75 } |
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76 |
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77 return aLoader->IconL( aParams.iBitmapId ); |
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78 } |
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79 |
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80 TPtrC8 AknIconSrvUtils::InitIconDataAndHandlerLC( |
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81 CAknIconLoader* aLoader, |
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82 MAknIconFormatHandler*& aHandler, |
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83 TInt aIconId, |
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84 TBool aAnimated ) |
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85 { |
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86 CleanupStack::PushL( TCleanupItem( CleanupFreeIcon, aLoader ) ); |
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87 |
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88 if ( aLoader->IconAnimatedL( aIconId ) && !aAnimated ) |
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89 { |
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90 User::Leave( KAknIconSrvCodeAnimated ); |
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91 } |
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92 |
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93 TInt type = aLoader->IconTypeL( aIconId ); |
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94 |
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95 if ( !aHandler ) |
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96 { |
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97 aHandler = AknIconFormatHandlerFactory::NewIconFormatHandlerL( type ); |
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98 aHandler->SetAnimated( aAnimated ); |
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99 } |
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100 |
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101 return aLoader->IconL( aIconId ); |
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102 } |
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103 |
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104 // ----------------------------------------------------------------------------- |
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105 // AknIconSrvUtils::RenderPreparedIconL |
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106 // ----------------------------------------------------------------------------- |
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107 // |
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108 TAknContentDimensions AknIconSrvUtils::RenderPreparedIconL( |
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109 MAknIconFormatHandler& aHandler, |
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110 CFbsBitmap* aBitmap, |
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111 CFbsBitmap* aMask, // may be NULL |
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112 TDisplayMode aBitmapDepth, |
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113 TDisplayMode aPreferredDepth, |
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114 const TSize& aSize, |
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115 TScaleMode aMode, |
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116 TInt aRotationAngle, |
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117 TRgb aColor, |
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118 TInt /*aBitmapId*/, |
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119 TInt /*aMaskId*/, |
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120 TBool isAppIcon) |
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121 { |
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122 TSize resultSize( aSize ); |
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123 CAknBitmap* aknIcon = CAknBitmap::DynamicCast(aBitmap); |
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124 |
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125 TAknContentDimensions dimensions; |
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126 TBool dimensionsRetrieved = EFalse; |
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127 |
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128 if ( aMode == EAspectRatioPreservedAndUnusedSpaceRemoved ) |
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129 { |
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130 if ( !resultSize.iWidth || !resultSize.iHeight ) |
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131 { |
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132 resultSize.iWidth = 0; |
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133 resultSize.iHeight = 0; |
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134 } |
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135 else |
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136 { |
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137 aHandler.GetContentDimensionsL( dimensions ); |
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138 dimensionsRetrieved = ETrue; |
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139 GetAspectRatioPreservedSize( dimensions, resultSize ); |
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140 } |
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141 } |
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142 |
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143 TDisplayMode definedDepth = aBitmapDepth; |
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144 // Change display mode to the closest one supported by the engine. |
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145 aHandler.SupportedDisplayMode( aBitmapDepth, aPreferredDepth ); |
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146 |
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147 CFbsBitmap* renderBitmap = aBitmap; |
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148 |
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149 // If EGray256 mode was defined, and the engine did not support it, |
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150 // render the icon first in a temporary bitmap. |
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151 |
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152 if ( definedDepth == EGray256 && definedDepth != aBitmapDepth ) |
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153 { |
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154 renderBitmap = new( ELeave ) CFbsBitmap; |
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155 CleanupStack::PushL( renderBitmap ); |
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156 } |
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157 |
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158 User::LeaveIfError( renderBitmap->Create( resultSize, aBitmapDepth ) ); |
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159 if ( aMask ) |
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160 { |
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161 // Always use soft masks with SVGs. |
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162 User::LeaveIfError( aMask->Create( resultSize, EGray256 ) ); |
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163 } |
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164 |
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165 aHandler.SetScaleMode( aMode ); |
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166 aHandler.SetRotation( aRotationAngle ); |
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167 aknIcon = CAknBitmap::DynamicCast(aBitmap); |
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168 aHandler.RenderPreparedIconL(renderBitmap, aMask ,resultSize, aBitmapDepth, EGray256,aColor, isAppIcon); |
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169 |
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170 // Copy from temp. render bitmap to real bitmap, |
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171 // and convert display depth to EGray256. |
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172 if ( renderBitmap != aBitmap ) |
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173 { |
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174 User::LeaveIfError( aBitmap->Create( resultSize, EGray256 ) ); |
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175 |
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176 CFbsBitmapDevice* dev = CFbsBitmapDevice::NewL( aBitmap ); |
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177 CleanupStack::PushL( dev ); |
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178 CFbsBitGc* gc = NULL; |
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179 User::LeaveIfError( dev->CreateContext( gc ) ); |
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180 CleanupStack::PushL( gc ); |
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181 |
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182 gc->BitBlt( TPoint( 0, 0 ), renderBitmap ); |
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183 |
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184 CleanupStack::PopAndDestroy( 3 ); // renderBitmap, dev, gc |
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185 } |
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186 |
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187 if ( !dimensionsRetrieved ) |
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188 { |
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189 aHandler.GetContentDimensionsL( dimensions ); |
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190 } |
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191 |
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192 return dimensions; |
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193 } |
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194 |
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195 // ----------------------------------------------------------------------------- |
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196 // AknIconSrvUtils::GetAspectRatioPreservedSize |
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197 // ----------------------------------------------------------------------------- |
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198 // |
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199 void AknIconSrvUtils::GetAspectRatioPreservedSize( |
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200 const TAknContentDimensions& aDimensions, |
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201 TSize& aSize ) |
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202 { |
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203 if ( !aDimensions.iWidth || !aDimensions.iHeight ) |
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204 { |
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205 aSize.iWidth = 0; |
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206 aSize.iHeight = 0; |
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207 } |
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208 else |
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209 { |
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210 if ( aSize.iWidth > KMaxTInt16 ) |
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211 { |
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212 aSize.iWidth = KMaxTInt16; |
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213 } |
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214 if ( aSize.iHeight > KMaxTInt16 ) |
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215 { |
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216 aSize.iHeight = KMaxTInt16; |
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217 } |
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218 |
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219 TReal32 xScaleFactor = (TReal32)(aSize.iWidth) / aDimensions.iWidth; |
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220 TReal32 yScaleFactor = (TReal32)(aSize.iHeight) / aDimensions.iHeight; |
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221 |
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222 if ( xScaleFactor > yScaleFactor ) |
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223 { |
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224 TReal32 width = aDimensions.iWidth * yScaleFactor; |
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225 aSize.iWidth = width; |
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226 if ( width - aSize.iWidth > 0 ) //rounding |
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227 { |
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228 aSize.iWidth++; |
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229 } |
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230 } |
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231 else |
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232 { |
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233 TReal32 height = aDimensions.iHeight * xScaleFactor; |
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234 aSize.iHeight = height; |
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235 if ( height - aSize.iHeight > 0 ) //rounding |
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236 { |
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237 aSize.iHeight++; |
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238 } |
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239 } |
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240 } |
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241 } |
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242 |
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243 // ----------------------------------------------------------------------------- |
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244 // AknIconSrvUtils::GetAspectRatioPreservedSize |
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245 // ----------------------------------------------------------------------------- |
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246 // |
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247 void AknIconSrvUtils::GetAspectRatioPreservedSize( |
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248 const TSize& aDimensions, |
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249 TSize& aSize, |
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250 TBool aFitToOriginalSize ) |
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251 { |
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252 if ( !aDimensions.iWidth || !aDimensions.iHeight ) |
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253 { |
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254 aSize.iWidth = 0; |
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255 aSize.iHeight = 0; |
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256 } |
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257 else |
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258 { |
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259 if ( aSize.iWidth > KMaxTInt16 ) |
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260 { |
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261 aSize.iWidth = KMaxTInt16; |
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262 } |
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263 if ( aSize.iHeight > KMaxTInt16 ) |
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264 { |
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265 aSize.iHeight = KMaxTInt16; |
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266 } |
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267 |
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268 TInt xScaleFactor = (aSize.iWidth << 16) / aDimensions.iWidth; |
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269 TInt yScaleFactor = (aSize.iHeight << 16) / aDimensions.iHeight; |
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270 |
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271 |
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272 TBool chooseWidthScaling = (xScaleFactor > yScaleFactor); |
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273 |
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274 if (!aFitToOriginalSize) |
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275 { |
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276 chooseWidthScaling = !chooseWidthScaling; |
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277 } |
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278 |
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279 if ( chooseWidthScaling ) |
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280 { |
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281 aSize.iWidth = aDimensions.iWidth * yScaleFactor; |
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282 TBool rounding = aSize.iWidth & 0x8000; |
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283 |
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284 aSize.iWidth >>= 16; |
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285 if ( rounding ) |
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286 { |
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287 aSize.iWidth++; |
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288 } |
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289 } |
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290 else |
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291 { |
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292 aSize.iHeight = aDimensions.iHeight * xScaleFactor; |
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293 TBool rounding = aSize.iHeight & 0x8000; |
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294 |
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295 aSize.iHeight >>= 16; |
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296 if ( rounding ) |
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297 { |
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298 aSize.iHeight++; |
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299 } |
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300 } |
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301 } |
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302 } |
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303 |
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304 // ----------------------------------------------------------------------------- |
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305 // AknIconSrvUtils::ScaleBitmapIconL |
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306 // ----------------------------------------------------------------------------- |
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307 // |
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308 TBool AknIconSrvUtils::ScaleBitmapIconL( |
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309 const TSize& aSize, |
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310 const TScaleMode aMode, |
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311 const TInt aAngle, |
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312 const TRgb aColor, |
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313 CFbsBitmap* aSourceBitmap, |
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314 CFbsBitmap* aSourceMask, |
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315 CFbsBitmap* aTargetBitmap, |
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316 CFbsBitmap* aTargetMask ) |
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317 { |
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318 TSize scaledSize( aSize ); |
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319 TSize originalSize(aSourceBitmap->SizeInPixels()); |
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320 TBool colorIcon = aColor != KColorNotDefined; |
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321 |
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322 // Find out the scaled size according to the given scale mode. |
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323 // Note:In scaling mode EAspectRatioPreservedSlice no need to calculate scaledSize for color icons. |
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324 if ( aMode != EAspectRatioNotPreserved && (aMode != EAspectRatioPreservedSlice || !colorIcon)) |
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325 { |
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326 AknIconSrvUtils::GetAspectRatioPreservedSize( originalSize, scaledSize, aMode != EAspectRatioPreservedSlice ); |
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327 } |
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328 |
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329 const TSize& bitmapSize = |
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330 aMode == EAspectRatioPreservedAndUnusedSpaceRemoved ? |
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331 scaledSize : aSize; |
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332 |
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333 TDisplayMode colorDepth = colorIcon ? |
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334 EColor64K : aSourceBitmap->DisplayMode(); |
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335 |
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336 User::LeaveIfError( aTargetBitmap->Create( bitmapSize, colorDepth ) ); |
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337 |
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338 // Icon should be centered, so calculate x and y margins. |
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339 TInt xMargin = ( bitmapSize.iWidth - scaledSize.iWidth ) / 2; |
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340 TInt yMargin = ( bitmapSize.iHeight - scaledSize.iHeight ) / 2; |
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341 |
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342 // Target rect inside the target bitmap. |
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343 TRect targetRect( xMargin, yMargin, |
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344 xMargin + scaledSize.iWidth, yMargin + scaledSize.iHeight ); |
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345 |
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346 // Decide if fallback should be forced in ScaleBitmapExtL calls |
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347 TBool forceFallBack = EFalse; |
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348 if ( !colorIcon && aSourceBitmap && !aAngle ) |
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349 { |
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350 forceFallBack = AknIconUtils::DoesScaleBitmapUseFallBack( aSourceBitmap ); |
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351 } |
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352 if ( aSourceMask && aTargetMask && !aAngle ) |
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353 { |
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354 forceFallBack = forceFallBack || AknIconUtils::DoesScaleBitmapUseFallBack( aSourceMask ); |
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355 } |
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356 |
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357 // If color icon, just fill the bitmap with the defined color. |
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358 if ( colorIcon ) |
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359 { |
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360 CFbsBitmapDevice* dev = CFbsBitmapDevice::NewL( aTargetBitmap ); |
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361 CleanupStack::PushL( dev ); |
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362 CFbsBitGc* gc = NULL; |
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363 User::LeaveIfError( dev->CreateContext( gc ) ); |
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364 CleanupStack::PushL( gc ); |
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365 |
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366 gc->SetBrushColor( aColor ); |
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367 gc->SetPenStyle( CGraphicsContext::ENullPen ); |
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368 gc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
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369 // Fill icon with the given color, mask defines the icon shape. |
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370 gc->DrawRect( TRect( TPoint( 0, 0 ), bitmapSize ) ); |
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371 |
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372 CleanupStack::PopAndDestroy( 2 ); // dev, gc |
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373 } |
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374 |
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375 // Otherwise, perform bitmap scaling and rotation as required. |
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376 else |
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377 { |
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378 if ( !aAngle ) |
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379 { |
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380 AknIconUtils::ScaleBitmapExtL( targetRect, aTargetBitmap, aSourceBitmap, forceFallBack ); |
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381 } |
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382 else |
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383 { |
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384 AknIconUtils::RotateAndScaleBitmapL( |
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385 targetRect, |
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386 aTargetBitmap, |
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387 aSourceBitmap, |
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388 aAngle ); |
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389 } |
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390 } |
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391 |
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392 // Optional mask is always scaled and rotated as required. |
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393 if ( aSourceMask && aTargetMask) |
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394 { |
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395 User::LeaveIfError(aTargetMask->Create( bitmapSize, aSourceMask->DisplayMode() ) ); |
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396 |
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397 |
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398 // If target mode is EAspectRatioPreserved, there may be unused parts |
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399 // in the bitmap, so need to initialize soft masks black before scaling. |
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400 if ( aMode == EAspectRatioPreserved && aTargetMask->DisplayMode() == EGray256 ) |
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401 { |
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402 CFbsBitmapDevice* dev = CFbsBitmapDevice::NewL( aTargetMask ); |
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403 CleanupStack::PushL( dev ); |
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404 CFbsBitGc* gc = NULL; |
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405 User::LeaveIfError( dev->CreateContext( gc ) ); |
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406 CleanupStack::PushL( gc ); |
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407 gc->SetBrushColor( KRgbBlack ); |
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408 gc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
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409 gc->Clear(); |
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410 CleanupStack::PopAndDestroy(2); // dev, gc |
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411 } |
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412 |
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413 if ( !aAngle ) |
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414 { |
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415 AknIconUtils::ScaleBitmapExtL( targetRect, aTargetMask, aSourceMask, forceFallBack ); |
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416 } |
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417 else |
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418 { |
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419 AknIconUtils::RotateAndScaleBitmapL( |
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420 targetRect, |
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421 aTargetMask, |
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422 aSourceMask, |
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423 aAngle ); |
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424 } |
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425 } |
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426 |
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427 return colorIcon; |
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428 } |
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429 |
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430 |
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431 LOCAL_C TInt CheckTransparency(const CFbsBitmap* aBmp, TDes8& aBuffer, TInt aMask, TDisplayMode aMode) |
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432 { |
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433 // Note: The following calculations use the below notation. |
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434 // |
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435 // Ha = Actual height of the bitmap |
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436 // hTa = Height of the transparent region at the bottom of the bitmap |
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437 // hNT = Height of the non-transparent region in the bitmap |
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438 // Therefore, Ha = hNT + 2 * hTa |
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439 // |
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440 // hNTN = New height of the non-transparent region after accomodating |
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441 // for the 12% transparent margins(bottom) |
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442 // HaN = New needed height of the bitmap to adjust the transparent area |
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443 // at the bottom to 12% |
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444 // R = Ratio of hNTN / hNT |
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445 // C = 2 * hTa |
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446 // HaN = Ha * R - C * R + C |
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447 // |
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448 // This means that if the transparent margins are already 12% then |
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449 // R becomes 1 in the above equation and it reduces to |
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450 // HaN = Ha |
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451 // If R becomes > 1 i.e. hNTN > hNT, then it would be clipped to 1. |
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452 const TSize& sz = aBmp->SizeInPixels(); |
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453 const TInt lValidMargin = sz.iHeight * 12 / 100; |
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454 |
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455 const TInt Ha = sz.iHeight; |
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456 TInt hTa = 0; |
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457 TInt hNT = 0; |
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458 TInt C = 0; |
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459 TInt hNTN = Ha - 2.0 * 0.12 * Ha; |
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460 TReal R = 1.0; |
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461 TInt HaN = Ha; |
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462 |
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463 switch(aMode) |
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464 { |
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465 case EGray256: // for mask |
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466 { |
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467 const TInt lastColumn = sz.iWidth - 1; |
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468 const TUint8* ptr8 = reinterpret_cast<const TUint8*> (aBuffer.Ptr()); |
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469 for ( TInt curRow = 0; curRow < lValidMargin; curRow++ ) |
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470 { |
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471 const TInt y = (sz.iHeight - 1) - curRow; // h - 1 is the last line |
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472 aBmp->GetScanLine(aBuffer, TPoint(0, y), sz.iWidth, aMode); |
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473 for ( TInt s = lastColumn; s >= 0; --s ) |
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474 { |
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475 TUint8 lPixel = aBuffer[s]; |
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476 if ( aBuffer[s] & (TUint8)aMask ) //note that mask is inverted |
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477 { |
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478 hTa = curRow; |
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479 hNT = Ha - 2 * hTa; |
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480 C = 2 * hTa; |
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481 R = ( ( (TReal)hNTN / (TReal)hNT ) > 1.0 ) ? 1 : (TReal)hNTN / (TReal)hNT; |
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482 HaN = Ha * R - C * R + C; |
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483 // HaN =( 0.88 * Ha) + hTa; |
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484 return( HaN ); |
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485 } |
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486 } |
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487 } |
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488 } |
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489 |
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490 break; |
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491 case EColor16MA: |
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492 { |
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493 const TInt lastColumn = aBuffer.MaxLength() / sizeof(TUint32) - 1; |
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494 const TUint32* ptr = reinterpret_cast<const TUint32*> (aBuffer.Ptr()); |
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495 for ( TInt curRow = 0; curRow < lValidMargin; curRow++ ) |
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496 { |
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497 const TInt y = (sz.iHeight - 1) - curRow; // h - 1 is the last line |
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498 aBmp->GetScanLine(aBuffer, TPoint(0, y), sz.iWidth, aMode); |
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499 for ( TInt s = lastColumn; s >= 0; --s ) |
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500 { |
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501 if ( ptr[s] & aMask ) //note that mask is inverted |
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502 { |
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503 hTa = curRow; |
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504 hNT = Ha - 2 * hTa; |
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505 C = 2 * hTa; |
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506 R = ( ( (TReal)hNTN / (TReal)hNT ) > 1.0 ) ? 1 : (TReal)hNTN / (TReal)hNT; |
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507 HaN = Ha * R - C * R + C; |
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508 // HaN =( 0.88 * Ha) + hTa; |
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509 return( HaN ); |
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510 } |
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511 } |
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512 } |
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513 |
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514 } |
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515 break; |
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516 default: |
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517 break; |
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518 |
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519 } |
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520 |
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521 return HaN; |
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522 } |
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523 |
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524 |
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525 TInt AknIconSrvUtils::CheckMaskTransparencyL(const CFbsBitmap* aBmp) |
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526 { |
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527 const TSize& sz = aBmp->SizeInPixels(); |
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528 HBufC8* buffer = HBufC8::NewLC(sz.iWidth); |
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529 TPtr8 ptr = buffer->Des(); |
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530 const TInt h = CheckTransparency(aBmp, ptr, 0xFF, EGray256); |
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531 CleanupStack::PopAndDestroy(); |
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532 return h; |
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533 } |
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534 |
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535 TInt AknIconSrvUtils::CheckAlphaTransparencyL(const CFbsBitmap* aBmp) |
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536 { |
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537 const TSize& sz = aBmp->SizeInPixels(); |
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538 HBufC8* buffer = HBufC8::NewLC(sz.iWidth * sizeof(TUint32)); |
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539 TPtr8 ptr = buffer->Des(); |
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540 const TInt h = CheckTransparency(aBmp, ptr, 0xFF000000, EColor16MA); |
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541 CleanupStack::PopAndDestroy(); |
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542 return h; |
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543 } |
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544 |
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545 LOCAL_C void ScaleL(const TRect& aRect, CFbsBitmap* aBmp, TUint32 aFillColor, TBool aForceFb) |
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546 { |
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547 CFbsBitmap* bmp = new (ELeave) CFbsBitmap(); |
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548 CleanupStack::PushL(bmp); |
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549 User::LeaveIfError(bmp->Create(aRect.Size(), aBmp->DisplayMode())); |
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550 AknIconUtils::ScaleBitmapExtL( |
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551 TRect(TPoint(0, 0), aRect.Size()), |
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552 bmp, |
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553 aBmp, |
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554 aForceFb); |
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555 |
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556 |
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557 CFbsBitmapDevice* dev = CFbsBitmapDevice::NewL(aBmp); |
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558 CleanupStack::PushL(dev); |
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559 CFbsBitGc* con = NULL; |
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560 dev->CreateContext(con); |
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561 CleanupStack::PushL(con); |
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562 con->SetBrushColor( 0 ); |
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563 con->Clear(); |
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564 con->SetPenStyle(CGraphicsContext::ESolidPen); |
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565 con->SetBrushStyle(CGraphicsContext::ESolidBrush); |
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566 con->SetPenColor(aFillColor); |
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567 con->SetBrushColor(aFillColor); |
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568 const TSize sz = aBmp->SizeInPixels(); |
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569 con->DrawRect(TRect(TPoint(0, 0), aBmp->SizeInPixels())); |
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570 con->BitBlt(aRect.iTl, bmp); |
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571 CleanupStack::PopAndDestroy(3); |
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572 } |
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573 |
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574 |
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575 |
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576 |
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577 void AknIconSrvUtils::EnsureValidSizeL( CFbsBitmap* aBitmap, CFbsBitmap* aMask ) |
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578 { |
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579 if ( aBitmap == NULL ) |
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580 return; |
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581 CFbsBitmap* iBitmap = aBitmap; |
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582 CFbsBitmap* iMask = NULL; |
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583 if ( aMask ) |
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584 { |
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585 iMask = aMask; |
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586 } |
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587 TInt validHeight; |
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588 if(iMask != NULL) |
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589 { |
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590 SEpocBitmapHeader lBmpHeaderMask = iMask->Header(); |
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591 if ( lBmpHeaderMask.iBitsPerPixel != 8 ) |
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592 { |
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593 return; |
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594 } |
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595 validHeight = CheckMaskTransparencyL(iMask); |
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596 } |
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597 else |
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598 { |
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599 SEpocBitmapHeader lBmpHeaderBitmap = iBitmap->Header(); |
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600 if ( lBmpHeaderBitmap.iBitsPerPixel != 32 ) |
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601 { |
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602 return; |
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603 } |
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604 validHeight = CheckAlphaTransparencyL(iBitmap); |
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605 } |
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606 |
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607 const TSize& size = iBitmap->SizeInPixels(); |
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608 |
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609 if(validHeight == size.iHeight) |
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610 return; |
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611 |
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612 const TInt KOffSet = 16; |
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613 |
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614 //scale image down, leaving margins on sides |
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615 //then using fixed point math to get width |
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616 const TInt hmul = (validHeight << KOffSet) / size.iHeight; |
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617 const TInt validWidth = (size.iWidth * hmul + (1 << (KOffSet - 1))) >> KOffSet; // sz * mul + 0.5 |
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618 const TSize sz(validWidth, validHeight); |
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619 |
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620 //centrify it |
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621 TRect rect(TPoint((size.iWidth - sz.iWidth) >> 1, (size.iHeight - sz.iHeight) >> 1), sz); |
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622 |
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623 //it look better if even when centrified |
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624 rect.iTl.iX &= ~1; |
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625 rect.iBr.iX |= 1; |
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626 |
|
627 TBool forceFb = |
|
628 AknIconUtils::DoesScaleBitmapUseFallBack( iBitmap ); |
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629 |
|
630 if(iMask != NULL) |
|
631 { |
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632 forceFb = forceFb || AknIconUtils::DoesScaleBitmapUseFallBack( iMask ); |
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633 const TUint32 maskBytes = iMask->DisplayMode() != EGray256 ? 0xFFFFFFFFF : 0x0; |
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634 ::ScaleL(rect, iMask, maskBytes, forceFb); |
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635 } |
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636 |
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637 ::ScaleL(rect, iBitmap, 0xFF000000, forceFb); |
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638 |
|
639 } |
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640 |
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641 // End of File |