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1 /* |
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2 * Copyright (c) 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: Active Palette Checkerboard Styler* |
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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 * @file ActivePalette2CheckerboardStyler.cpp |
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20 * Active Palette Checkerboard Styler |
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21 */ |
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22 |
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23 #include "ActivePalette2Logger.h" |
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24 #include "ActivePalette2CheckerboardStyler.h" |
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25 #include "ActivePalette2Cfg.h" |
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26 #include "ActivePalette2Utils.h" |
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27 #include <activepalette2graphics.mbg> |
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28 |
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29 #include <bitstd.h> |
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30 #include <gdi.h> |
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31 #include <AknIconUtils.h> |
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32 |
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33 /// Returns whether supplied number is odd |
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34 #define IS_ODD(num) ((num) & 1) |
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35 |
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36 // Lightness threshold for checking whether a pixel |
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37 // should be considered 'white'. Lightness is defined as the sum of the |
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38 // 8-bit red, green, and blue values. |
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39 const TInt KLightnessThreshold = 0x80 * 3; |
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40 |
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41 // Threshold for determining if a pixel in a soft mask is considered |
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42 // opaque or transparent. |
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43 const TUint8 KMaskThreshold = 0x7f; |
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44 |
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45 // Color value for transparent pixel (ARGB format). |
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46 const TUint32 KColorKey = 0xFF000000; |
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47 |
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48 // Color value for opaque pixel (ARGB format). |
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49 const TUint32 KOpaqueColor = 0x00FFFFFF; |
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50 |
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51 |
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52 // ----------------------------------------------------------------------------- |
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53 // CActivePalette2CheckerboardStyler::NewL() |
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54 // ----------------------------------------------------------------------------- |
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55 // |
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56 CActivePalette2CheckerboardStyler* CActivePalette2CheckerboardStyler::NewL() |
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57 { |
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58 CActivePalette2CheckerboardStyler* self = new (ELeave) CActivePalette2CheckerboardStyler(); |
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59 CleanupStack::PushL(self); |
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60 self->ConstructL(); |
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61 CleanupStack::Pop(); // this |
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62 return self; |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // CActivePalette2CheckerboardStyler::ConstructL() |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 void CActivePalette2CheckerboardStyler::ConstructL() |
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70 { |
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71 LOGTEXT( _L( "CActivePalette2CheckerboardStyler::ConstructL entered")); |
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72 CActivePalette2Styler::ConstructL(); |
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73 |
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74 iAPTopSectionMask = new (ELeave) CFbsBitmap; |
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75 iAPItemMaskA = new (ELeave) CFbsBitmap; |
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76 iAPItemMaskB = new (ELeave) CFbsBitmap; |
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77 iAPGapMaskA = new (ELeave) CFbsBitmap; |
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78 iAPGapMaskB = new (ELeave) CFbsBitmap; |
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79 iAPBottomSectionMaskA = new (ELeave) CFbsBitmap; |
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80 iAPBottomSectionMaskB = new (ELeave) CFbsBitmap; |
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81 |
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82 // The order of calling these has an importance, to create the checkers correctly |
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83 |
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84 LoadAndScaleCheckerboardL( iAPTopSectionMask, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_top, EMbmActivepalette2graphicsQgn_graf_cam4_tb_top_mask, |
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85 TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::ETopSectionHeight) ) ); |
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86 LoadAndScaleCheckerboardL( iAPItemMaskA, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body_mask, |
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87 TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemHeight) ) ); |
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88 LoadAndScaleCheckerboardL( iAPGapMaskA, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap_mask, |
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89 TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EGapBetweenItems) ) ); |
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90 LoadAndScaleCheckerboardL( iAPItemMaskB, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body_mask, |
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91 TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemHeight) ) ); |
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92 LoadAndScaleCheckerboardL( iAPGapMaskB, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap_mask, |
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93 TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EGapBetweenItems) ) ); |
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94 LoadAndScaleCheckerboardL( iAPBottomSectionMaskB, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom_mask, |
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95 TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EBottomSectionHeight) ) ); |
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96 LoadAndScaleCheckerboardL( iAPBottomSectionMaskA, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom_mask, |
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97 TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EBottomSectionHeight) ) ); |
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98 |
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99 LOGTEXT( _L( "CActivePalette2CheckerboardStyler::ConstructL Left")); |
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100 } |
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101 |
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102 // ----------------------------------------------------------------------------- |
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103 // CActivePalette2CheckerboardStyler::~CActivePalette2CheckerboardStyler() |
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104 // ----------------------------------------------------------------------------- |
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105 // |
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106 CActivePalette2CheckerboardStyler::~CActivePalette2CheckerboardStyler() |
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107 { |
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108 delete iAPTopSectionMask; |
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109 delete iAPItemMaskA; |
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110 delete iAPItemMaskB; |
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111 delete iAPGapMaskA; |
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112 delete iAPGapMaskB; |
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113 delete iAPBottomSectionMaskA; |
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114 delete iAPBottomSectionMaskB; |
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115 } |
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116 |
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117 // ----------------------------------------------------------------------------- |
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118 // CActivePalette2CheckerboardStyler::DrawItem() |
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119 // ----------------------------------------------------------------------------- |
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120 // |
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121 void CActivePalette2CheckerboardStyler::DrawItem(TInt aScreenPos, CFbsBitmap* aIcon, CFbsBitmap* aMask, TInt aOffsetFrame, TInt aOffsetTotal) |
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122 { |
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123 TRect area(ItemRect(aScreenPos, aOffsetFrame, aOffsetTotal)); |
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124 |
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125 iDrawBufContext->SetClippingRect(iItemsRect); |
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126 iDrawBufMaskContext->SetClippingRect(iItemsRect); |
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127 |
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128 if ( IS_ODD(aScreenPos) ) |
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129 { |
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130 BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPItem, iAPItemMaskB, EFalse, EFalse); |
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131 } |
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132 else |
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133 { |
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134 BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPItem, iAPItemMaskA, EFalse, EFalse); |
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135 } |
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136 |
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137 BlitGraphic(area.iTl + TPoint(ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemXOffset),0), iDrawBufContext, iDrawBufMaskContext, aIcon, aMask, ETrue, ETrue); |
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138 |
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139 iDrawBufMaskContext->CancelClippingRect(); |
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140 iDrawBufContext->CancelClippingRect(); |
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141 |
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142 area.Intersection(iItemsRect); |
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143 AddToDirtyRect( area ); |
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144 } |
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145 |
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146 // ----------------------------------------------------------------------------- |
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147 // CActivePalette2CheckerboardStyler::DrawGap() |
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148 // ----------------------------------------------------------------------------- |
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149 // |
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150 void CActivePalette2CheckerboardStyler::DrawGap(TInt aScreenPos, TInt aOffsetFrame, TInt aOffsetTotal) |
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151 { |
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152 TRect area(GapRect(aScreenPos, aOffsetFrame, aOffsetTotal)); |
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153 |
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154 iDrawBufContext->SetClippingRect(iItemsRect); |
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155 iDrawBufMaskContext->SetClippingRect(iItemsRect); |
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156 |
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157 if ( IS_ODD(aScreenPos) ) |
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158 { |
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159 BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPGap, iAPGapMaskB, EFalse, EFalse); |
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160 } |
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161 else |
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162 { |
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163 BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPGap, iAPGapMaskA, EFalse, EFalse); |
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164 } |
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165 |
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166 iDrawBufMaskContext->CancelClippingRect(); |
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167 iDrawBufContext->CancelClippingRect(); |
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168 |
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169 area.Intersection(iItemsRect); |
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170 AddToDirtyRect( area ); |
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171 } |
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172 |
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173 // ----------------------------------------------------------------------------- |
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174 // CActivePalette2CheckerboardStyler::AnimItem() |
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175 // ----------------------------------------------------------------------------- |
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176 // |
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177 void CActivePalette2CheckerboardStyler::AnimItem(TInt aScreenPos, CFbsBitmap* aIcon, CFbsBitmap* aMask) |
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178 { |
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179 TRect area(ItemRect(aScreenPos)); |
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180 area.iTl.iX = ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemXOffset); |
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181 area.SetWidth(ActivePalette2Utils::APDimension( ActivePalette2Utils::EItemWidth )); |
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182 |
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183 TRect clippingRect(TPoint(ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemXOffset), 0), ActivePalette2Utils::APDimensionSize( ActivePalette2Utils::EItemSize ) ); |
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184 |
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185 iDrawBufContext->BitBlt(area.iTl, iAPItem, clippingRect); |
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186 |
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187 if ( IS_ODD(aScreenPos) ) |
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188 { |
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189 iDrawBufMaskContext->BitBlt(area.iTl, iAPItemMaskB, clippingRect); |
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190 } |
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191 else |
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192 { |
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193 iDrawBufMaskContext->BitBlt(area.iTl, iAPItemMaskA, clippingRect); |
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194 } |
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195 |
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196 BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, aIcon, aMask, ETrue, ETrue); |
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197 |
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198 AddToDirtyRect( area ); |
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199 } |
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200 |
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201 // ----------------------------------------------------------------------------- |
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202 // CActivePalette2CheckerboardStyler::DrawTopScrollArrowSection() |
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203 // ----------------------------------------------------------------------------- |
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204 // |
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205 void CActivePalette2CheckerboardStyler::DrawTopScrollArrowSection(TBool aShowArrow) |
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206 { |
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207 TRect area(TopSectionRect()); |
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208 |
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209 BlitGraphic(TPoint(0,0), iDrawBufContext, iDrawBufMaskContext, iAPTopSection, iAPTopSectionMask, EFalse, EFalse); |
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210 |
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211 if ( aShowArrow ) |
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212 { |
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213 CentreGraphic(area, iDrawBufContext, iDrawBufMaskContext, iScrollUpIcon, iScrollUpIconMask, ETrue, ETrue); |
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214 } |
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215 |
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216 AddToDirtyRect( area ); |
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217 } |
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218 |
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219 // ----------------------------------------------------------------------------- |
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220 // CActivePalette2CheckerboardStyler::DrawBottomScrollArrowSection() |
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221 // ----------------------------------------------------------------------------- |
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222 // |
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223 void CActivePalette2CheckerboardStyler::DrawBottomScrollArrowSection(TBool aShowArrow) |
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224 { |
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225 TRect area(BottomSectionRect()); |
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226 |
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227 if ( IS_ODD(iNumItems) ) |
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228 { |
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229 BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPBottomSection, iAPBottomSectionMaskA, EFalse, EFalse); |
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230 } |
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231 else |
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232 { |
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233 BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPBottomSection, iAPBottomSectionMaskB, EFalse, EFalse); |
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234 } |
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235 |
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236 if ( aShowArrow ) |
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237 { |
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238 CentreGraphic(area, iDrawBufContext, iDrawBufMaskContext, iScrollDownIcon, iScrollDownIconMask, ETrue, ETrue); |
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239 } |
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240 |
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241 AddToDirtyRect( area ); |
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242 } |
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243 |
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244 |
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245 // ----------------------------------------------------------------------------- |
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246 // CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard() |
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247 // ----------------------------------------------------------------------------- |
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248 // |
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249 void CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboardL( |
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250 CFbsBitmap* aTargetBitmap, |
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251 const TDesC& aFileName, |
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252 TInt32 aId, |
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253 TInt32 aMaskId, |
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254 TSize aSize ) |
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255 { |
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256 LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard entered")); |
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257 CFbsBitmap* sourceIcon = NULL; |
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258 CFbsBitmap* sourceIconMask = NULL; |
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259 AknIconUtils::CreateIconLC(sourceIcon, sourceIconMask, aFileName, aId, aMaskId); |
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260 AknIconUtils::SetSize(sourceIcon, aSize); |
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261 AknIconUtils::SetSize(sourceIconMask, aSize); |
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262 LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard svg icons loaded")); |
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263 User::LeaveIfError( aTargetBitmap->Create( aSize, EColor16MA ) ); |
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264 |
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265 TSize bmpSize = aTargetBitmap->SizeInPixels(); |
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266 TRgb rgbColor = KRgbBlack; |
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267 TRgb rgbAlphaColor = KRgbBlack; |
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268 |
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269 HBufC8* lineBuf = HBufC8::NewLC( CFbsBitmap::ScanLineLength( bmpSize.iWidth, EColor16MA ) ); |
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270 TPtr8 lineDes = lineBuf->Des(); |
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271 HBufC8* maskBuf = HBufC8::NewLC( CFbsBitmap::ScanLineLength( bmpSize.iWidth, EGray256 ) ); |
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272 TPtr8 maskDes = maskBuf->Des(); |
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273 |
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274 for (TInt y = 0; y < bmpSize.iHeight; y++) |
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275 { |
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276 sourceIcon->GetScanLine( |
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277 lineDes, TPoint(0, y), bmpSize.iWidth, EColor16MA); |
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278 sourceIconMask->GetScanLine( |
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279 maskDes, TPoint(0, y), bmpSize.iWidth, EGray256); |
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280 |
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281 // EColor16MA is 4 bytes (32-bits) per pixel |
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282 TUint32* linePtr = reinterpret_cast<TUint32*>( &lineDes[0] ); |
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283 |
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284 // EGray256 is 1 byte per pixel |
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285 TUint8* maskPtr = reinterpret_cast<TUint8*>( &maskDes[0] ); |
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286 |
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287 for( TInt x = 0; x < bmpSize.iWidth; x++ ) |
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288 { |
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289 TUint32 color = linePtr[x]; |
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290 TUint8 mask = maskPtr[x]; |
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291 |
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292 // Get the RGB values in order to check the lightness of the pixel |
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293 // to determine whether to mask with the checkerboard pattern. |
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294 TInt lightness = |
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295 (color & 0xFF) + // blue |
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296 ((color >> 8) & 0xFF) + // green |
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297 ((color >> 16) & 0xFF); // red |
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298 |
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299 if ( mask < KMaskThreshold ) |
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300 { |
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301 // Transparent area. |
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302 linePtr[x] = KColorKey; |
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303 } |
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304 else if ( lightness > KLightnessThreshold ) |
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305 { |
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306 // Semitransparent (dithered) area. |
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307 // Make every second pixel transparent. |
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308 if ( ( x + iLineCheckerCounter ) & 1 ) |
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309 { |
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310 linePtr[x] = KColorKey; |
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311 } |
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312 else |
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313 { |
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314 linePtr[x] = KOpaqueColor; |
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315 } |
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316 } |
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317 else |
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318 { |
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319 // Fully opaque area |
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320 linePtr[x] = KOpaqueColor; |
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321 } |
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322 } |
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323 |
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324 aTargetBitmap->SetScanLine(lineDes, y); |
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325 iLineCheckerCounter++; |
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326 } |
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327 |
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328 // end draw checkers |
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329 LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard svg4")); |
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330 |
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331 CleanupStack::PopAndDestroy(maskBuf); |
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332 CleanupStack::PopAndDestroy(lineBuf); |
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333 CleanupStack::PopAndDestroy(2); // sourceIcon, sourceIconMask |
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334 LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard left")); |
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335 } |
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336 |
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337 |