70 AknIconUtils::SetSize( iBitmap, aRect.Size() ); |
68 AknIconUtils::SetSize( iBitmap, aRect.Size() ); |
71 } |
69 } |
72 if( iMask ) |
70 if( iMask ) |
73 { |
71 { |
74 AknIconUtils::SetSize( iMask, aRect.Size() ); |
72 AknIconUtils::SetSize( iMask, aRect.Size() ); |
75 |
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76 // Create a solid version of the mask, too |
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77 TRAP_IGNORE( |
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78 CopyBitmapL( *iMask, *iSolidMask ); |
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79 AdjustAlpha( *iSolidMask, KSolidTransparencyFactor ); |
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80 ); |
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81 |
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82 UpdateMask(); |
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83 } |
73 } |
84 CCoeControl::SetRect( aRect ); |
74 CCoeControl::SetRect( aRect ); |
85 } |
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86 |
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87 void COverlayControl::CopyBitmapL( const CFbsBitmap& aSource, CFbsBitmap& aDest ) |
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88 { |
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89 TSize size = aSource.SizeInPixels(); |
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90 TInt dataSize = aSource.DataStride() * size.iHeight; |
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91 User::LeaveIfError( aDest.Create( size, aSource.DisplayMode() ) ); |
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92 |
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93 CFbsBitGc* bitCtx; |
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94 CFbsBitmapDevice* bitDev = CFbsBitmapDevice::NewL( &aDest ); |
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95 CleanupStack::PushL( bitDev ); |
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96 User::LeaveIfError( bitDev->CreateContext( bitCtx ) ); |
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97 CleanupStack::PushL( bitCtx ); |
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98 bitCtx->BitBlt( TRect( size ).iTl, &aSource ); |
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99 CleanupStack::PopAndDestroy( 2 ); // bitCtx, bitDev |
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100 } |
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101 |
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102 void COverlayControl::AdjustAlpha( CFbsBitmap& aBitmap, TReal aFactor ) |
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103 { |
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104 aBitmap.LockHeap(); |
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105 TUint8* data = (TUint8*)aBitmap.DataAddress(); |
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106 TSize size = aBitmap.SizeInPixels(); |
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107 TInt dataSize = aBitmap.DataStride() * size.iHeight; |
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108 for( TInt i = 0; i<dataSize; i++ ) |
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109 { |
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110 // multiply each pixel by aFactor |
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111 if( data[i] ) |
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112 { |
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113 TInt value = aFactor * data[ i ]; |
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114 if( value > KMaxTUint8 ) |
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115 { |
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116 value = KMaxTUint8; |
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117 } |
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118 data[ i ] = value; |
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119 } |
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120 } |
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121 aBitmap.UnlockHeap(); |
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122 } |
75 } |
123 |
76 |
124 void COverlayControl::HandlePointerEventL( const TPointerEvent& aPointerEvent ) |
77 void COverlayControl::HandlePointerEventL( const TPointerEvent& aPointerEvent ) |
125 { |
78 { |
126 CCoeControl::HandlePointerEventL( aPointerEvent ); |
79 CCoeControl::HandlePointerEventL( aPointerEvent ); |
127 |
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128 // Do hit test for the pointer event |
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129 TBool hit = EFalse; |
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130 |
80 |
131 TSize size = Size(); |
81 if( iObserver ) |
132 if( aPointerEvent.iPosition.iX >= 0 && |
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133 aPointerEvent.iPosition.iY >= 0 && |
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134 aPointerEvent.iPosition.iX < size.iWidth && |
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135 aPointerEvent.iPosition.iY < size.iHeight ) |
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136 { |
82 { |
137 hit = ETrue; |
83 // Do not let leaves disturb the system |
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84 TRAP_IGNORE( |
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85 iObserver->HandleOverlayPointerEventL( this, aPointerEvent )); |
138 } |
86 } |
139 |
87 } |
140 if( aPointerEvent.iType == TPointerEvent::EButton1Up ) |
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141 { |
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142 SetPointerCapture( EFalse ); |
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143 UpdateButtonState( EFalse ); |
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144 |
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145 // Notify the events only if released on top of the control |
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146 if( iObserver && hit ) |
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147 { |
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148 // Do not let leaves disturb the system |
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149 TRAP_IGNORE( |
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150 iObserver->HandleOverlayPointerEventL( this, aPointerEvent ); |
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151 ); |
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152 } |
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153 } |
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154 else if( aPointerEvent.iType == TPointerEvent::EButton1Down ) |
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155 { |
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156 UpdateButtonState( ETrue ); |
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157 SetGloballyCapturing( ETrue ); |
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158 SetPointerCapture( ETrue ); |
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159 } |
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160 else if( aPointerEvent.iType == TPointerEvent::EDrag ) |
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161 { |
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162 // Update the button UI according to hit result |
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163 UpdateButtonState( hit ); |
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164 } |
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165 } |
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166 |
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167 void COverlayControl::UpdateButtonState( TBool aButtonDown ) |
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168 { |
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169 if( iDownState != aButtonDown ) |
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170 { |
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171 iDownState = aButtonDown; |
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172 UpdateMask(); |
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173 } |
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174 } |
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175 |
88 |
176 void COverlayControl::MakeVisible( TBool aVisible ) |
89 void COverlayControl::MakeVisible( TBool aVisible ) |
177 { |
90 { |
178 if( !aVisible ) |
91 if( !aVisible ) |
179 { |
92 { |
180 UpdateButtonState( EFalse ); |
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181 SetPointerCapture( EFalse ); |
93 SetPointerCapture( EFalse ); |
182 } |
94 } |
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95 else |
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96 { |
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97 DrawDeferred(); |
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98 } |
183 CCoeControl::MakeVisible( aVisible ); |
99 CCoeControl::MakeVisible( aVisible ); |
184 } |
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185 |
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186 void COverlayControl::UpdateMask() |
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187 { |
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188 CFbsBitmap* mask = iMask; |
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189 if( iDownState ) |
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190 { |
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191 mask = iSolidMask; |
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192 } |
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193 if( mask ) |
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194 { |
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195 Window().SetTransparencyBitmap( *mask ); |
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196 } |
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197 } |
100 } |
198 |
101 |
199 void COverlayControl::Draw( const TRect& ) const |
102 void COverlayControl::Draw( const TRect& ) const |
200 { |
103 { |
201 CWindowGc& gc = SystemGc(); |
104 CWindowGc& gc = SystemGc(); |
202 |
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203 if( iBitmap ) |
105 if( iBitmap ) |
204 { |
106 { |
205 TSize size = iBitmap->SizeInPixels(); |
107 TSize size = iBitmap->SizeInPixels(); |
206 gc.BitBlt( TPoint( 0, 0 ), iBitmap ); |
108 gc.BitBltMasked(Position(),iBitmap,TRect( TPoint(0,0), size),iMask, ETrue); |
207 } |
109 } |
208 } |
110 } |