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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #ifndef CDISPLAYPOLICY_H |
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17 #define CDISPLAYPOLICY_H |
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18 |
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19 // INCLUDES |
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20 #include <e32std.h> |
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21 #include <e32base.h> |
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22 #include <graphics/displaycontrolbase.h> |
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23 #include <graphics/displaymapping.h> |
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24 #include <graphics/displayconfiguration.h> |
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25 #include <graphics/wsdisplaypolicy.h> |
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26 // CLASS DECLARATION |
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27 enum TCoordinateSpace; |
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28 class MWsGraphicDrawerEnvironment; |
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29 class MWsScreen; |
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30 class MWsScreenConfigList; |
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31 class MWsIniFile; |
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32 /** |
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33 * CDisplayPolicy |
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34 * |
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35 */ |
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36 class CDisplayPolicy : public CBase |
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37 { |
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38 public: |
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39 enum TUiScaling |
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40 { |
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41 ENone= 0, |
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42 EInteger= 1, |
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43 EIsotropic= 2, |
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44 EAnisotropic= 3 |
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45 }; |
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46 // Constructors and destructor |
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47 |
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48 /** |
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49 * Destructor. |
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50 */ |
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51 ~CDisplayPolicy(); |
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52 |
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53 /** |
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54 * Two-phased constructor. |
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55 */ |
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56 static CDisplayPolicy* NewL(MWsGraphicDrawerEnvironment* aEnv,MWsScreen* aScreen,TInt aScreenNumber); |
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57 |
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58 /** |
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59 * Two-phased constructor. |
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60 */ |
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61 static CDisplayPolicy* NewLC(MWsGraphicDrawerEnvironment* aEnv,MWsScreen* aScreen,TInt aScreenNumber); |
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62 |
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63 void NewAppModesAvailable(); |
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64 void GetAppModeList(); |
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65 TInt MapCoordinates(TCoordinateSpace aSourceSpace, const TRect& aSource, |
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66 TCoordinateSpace aTargetSpace, TRect& aTarget) const; |
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67 void AddVirtualResolutionCount(TInt& aDisplayCount) const; |
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68 TInt AddVirtualResolutions(RArray<MDisplayControlBase::TResolution>& aResolutions) const; |
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69 MDisplayControlBase::TResolution AppModeToResolution(RArray<MDisplayControlBase::TResolution>& aResolutions,TInt appMode)const; |
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70 TInt GetSizeModeConfiguration(RArray<MDisplayControlBase::TResolution>& aResolutions,TInt aScreenSizeMode, |
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71 TDisplayConfiguration& aConfig, TRect& aSizeModePosition) const; |
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72 |
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73 /* |
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74 * Used when display is disconnected. |
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75 */ |
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76 TInt GetSizeModeConfiguration(TInt aScreenSizeMode,TDisplayConfiguration& aConfig, TRect& aSizeModePosition); |
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77 TBool SettingConfiguration(const RArray<MDisplayControlBase::TResolution>& aResolutions, |
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78 TDisplayConfiguration& aConfig)const; |
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79 TBool PolicyEnabled()const{return (iUiScaling==ENone)?EFalse:ETrue;} |
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80 |
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81 void SetCompositionInfo (const TDisplayConfiguration& aCompositionConfig,const TDisplayConfiguration& aUiConfig); |
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82 void SetSizeModeExtent(TRect& aExtent, TBitFlags32 /*aContext*/); |
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83 void AdjustStageBufferSize(const TSize& aOldSize,TSize& aNewSize); |
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84 void CalculateMinBufferSize(RArray<MDisplayControlBase::TResolution>& aResolutions, TInt aConnectionStatus); |
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85 TInt SuitableAppMode(MWsDisplayPolicy::TDisplayStatus aSituation); |
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86 void SetLastAppMode(TInt aMode); |
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87 |
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88 TSize GetUiResolution(); |
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89 TSize GetUiResolutionAsTwips() const; |
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90 TRect GetPolicyAppMode(); |
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91 |
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92 private: |
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93 |
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94 class TAppMode |
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95 { |
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96 public: |
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97 TRect iPixels; //<Size and pisition in pixels |
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98 TSize iTwips; //<Size in TWips |
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99 TInt iFlags; //<Flags |
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100 enum THighFlags //<Policy flags are per app mode. Lower bits are defined by MWsScreenConfigList::TModeFlags |
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101 { //Currently none |
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102 }; |
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103 |
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104 //The app modes are presented based on Normal rotation to calculate correctly with display resolutions |
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105 //which are always in normal rotation |
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106 TInt iOrientations; //<Index bits via CFbsBitGc::TGraphicsOrientation |
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107 TInt iModeIndex; //<Which screen mode index it refers to |
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108 |
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109 }; |
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110 /** |
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111 * Constructor for performing 1st stage construction |
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112 */ |
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113 CDisplayPolicy(); |
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114 |
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115 /** |
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116 * EPOC default constructor for performing 2nd stage construction |
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117 */ |
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118 void ConstructL(MWsGraphicDrawerEnvironment* aEnv,MWsScreen* aScreen,TInt aScreenNumber); |
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119 TBool FindVirtualMode(const RArray<MDisplayControlBase::TResolution>& aResolutions, |
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120 const CDisplayPolicy::TAppMode& aAppMode,TSize& aFullAppModeSize,TInt& aIndex,TInt& aBestScale) const; |
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121 |
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122 TSize ResolutionSize(RArray<MDisplayControlBase::TResolution>& aResolutions, const TSize aBestAppSize, |
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123 TInt aIndex, TInt aScale) const; |
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124 TSize ResolutionSizeFromTwips(RArray<MDisplayControlBase::TResolution>& aResolutions, TInt aAppMode,const TSize& aBestAppSize, |
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125 TInt aIndex,TBool aSwapAxis) const; |
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126 TSize ResolutionSizeFromAssumedTwips(RArray<MDisplayControlBase::TResolution>& aResolutions,const TSize& aBestAppSize, |
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127 TInt aIndex,TBool aSwapAxis,TInt aScale) const; |
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128 |
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129 TBool MatchConfigToResolutions(const RArray<MDisplayControlBase::TResolution>& aResolutions, |
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130 const TDisplayConfiguration& aConfig, TInt aStartIndex, TInt& aResolutionIndex)const; |
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131 TBool SetConfigToResolution(TInt aAppMode, MDisplayControlBase::TResolution aResolution, TDisplayConfiguration& aConfig)const; |
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132 void CenteredAppInUi(const TSize& aUiSize,const TRect& aAppExtent,TRect& aSizeModePosition) const; |
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133 TInt MapCompositionToUi(const TRect& aSource, TRect& aTarget, TBool aIsReverseMapping) const; |
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134 void MapUiToApplication(const TRect& aSource, TRect& aTarget, TBool aIsReverseMapping) const; |
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135 TInt MapUiToDSA(const TRect& aSource, TRect& aTarget, TBool aIsReverseMapping) const; |
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136 void GetModeInfoL(const MWsScreenConfigList& aList,TInt aIndex,TPoint& aOffset,TSize& aSize,TAppMode& aMode) const; |
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137 TInt MinSizedModeIndex(); |
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138 /** Used when calculating how to map app mode to hardware resolutions |
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139 Rounds up when .5 |
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140 */ |
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141 class TFraction |
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142 { |
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143 public: |
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144 TFraction(); |
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145 TInt operator*(TInt aInt) const; |
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146 public: |
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147 TInt iNumer; |
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148 TInt iDenom; |
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149 }; |
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150 private: |
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151 RArray<TAppMode> iAppModes; |
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152 TInt iUiScaling; |
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153 MWsIniFile* iScreenIniFile; |
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154 MWsScreen* iScreen; |
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155 TSize iUiSizePixels; |
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156 TRect iAppSizePixels; |
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157 TSize iAppSizeTwips; |
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158 TSize iCompositionSizeTwips; |
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159 TSize iCompositionSizePixels; |
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160 TSize iMinUiBufferSize; |
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161 TInt iNumNormalAppModes; |
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162 TInt iLastAppMode; |
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163 TInt iConnectionStatus; |
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164 TInt iSmallestAppMode; |
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165 TSize iSmallestAppSize; |
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166 TDisplayConfiguration::TRotation iLastUiRotation; |
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167 TDisplayConfiguration::TRotation iLastCompositionRotation; |
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168 }; |
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169 |
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170 #endif // CDISPLAYPOLICY_H |