diff -r 61bc0f252b2b -r bac7acad7cb3 camerauis/activepalette/Src/ActivePalette2CheckerboardStyler.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/camerauis/activepalette/Src/ActivePalette2CheckerboardStyler.cpp Wed Sep 01 12:30:54 2010 +0100 @@ -0,0 +1,337 @@ +/* +* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: Active Palette Checkerboard Styler* +*/ + + +/** + * @file ActivePalette2CheckerboardStyler.cpp + * Active Palette Checkerboard Styler + */ + +#include "ActivePalette2Logger.h" +#include "ActivePalette2CheckerboardStyler.h" +#include "ActivePalette2Cfg.h" +#include "ActivePalette2Utils.h" +#include + +#include +#include +#include + +/// Returns whether supplied number is odd +#define IS_ODD(num) ((num) & 1) + +// Lightness threshold for checking whether a pixel +// should be considered 'white'. Lightness is defined as the sum of the +// 8-bit red, green, and blue values. +const TInt KLightnessThreshold = 0x80 * 3; + +// Threshold for determining if a pixel in a soft mask is considered +// opaque or transparent. +const TUint8 KMaskThreshold = 0x7f; + +// Color value for transparent pixel (ARGB format). +const TUint32 KColorKey = 0xFF000000; + +// Color value for opaque pixel (ARGB format). +const TUint32 KOpaqueColor = 0x00FFFFFF; + + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::NewL() +// ----------------------------------------------------------------------------- +// +CActivePalette2CheckerboardStyler* CActivePalette2CheckerboardStyler::NewL() + { + CActivePalette2CheckerboardStyler* self = new (ELeave) CActivePalette2CheckerboardStyler(); + CleanupStack::PushL(self); + self->ConstructL(); + CleanupStack::Pop(); // this + return self; + } + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::ConstructL() +// ----------------------------------------------------------------------------- +// +void CActivePalette2CheckerboardStyler::ConstructL() + { + LOGTEXT( _L( "CActivePalette2CheckerboardStyler::ConstructL entered")); + CActivePalette2Styler::ConstructL(); + + iAPTopSectionMask = new (ELeave) CFbsBitmap; + iAPItemMaskA = new (ELeave) CFbsBitmap; + iAPItemMaskB = new (ELeave) CFbsBitmap; + iAPGapMaskA = new (ELeave) CFbsBitmap; + iAPGapMaskB = new (ELeave) CFbsBitmap; + iAPBottomSectionMaskA = new (ELeave) CFbsBitmap; + iAPBottomSectionMaskB = new (ELeave) CFbsBitmap; + + // The order of calling these has an importance, to create the checkers correctly + + LoadAndScaleCheckerboardL( iAPTopSectionMask, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_top, EMbmActivepalette2graphicsQgn_graf_cam4_tb_top_mask, + TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::ETopSectionHeight) ) ); + LoadAndScaleCheckerboardL( iAPItemMaskA, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body_mask, + TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemHeight) ) ); + LoadAndScaleCheckerboardL( iAPGapMaskA, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap_mask, + TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EGapBetweenItems) ) ); + LoadAndScaleCheckerboardL( iAPItemMaskB, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body, EMbmActivepalette2graphicsQgn_graf_cam4_tb_body_mask, + TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemHeight) ) ); + LoadAndScaleCheckerboardL( iAPGapMaskB, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap, EMbmActivepalette2graphicsQgn_graf_cam4_tb_gap_mask, + TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EGapBetweenItems) ) ); + LoadAndScaleCheckerboardL( iAPBottomSectionMaskB, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom_mask, + TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EBottomSectionHeight) ) ); + LoadAndScaleCheckerboardL( iAPBottomSectionMaskA, NAP2Cfg::KUIGraphics, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom, EMbmActivepalette2graphicsQgn_graf_cam4_tb_bottom_mask, + TSize(ActivePalette2Utils::APDimension(ActivePalette2Utils::EPaletteWidth), ActivePalette2Utils::APDimension(ActivePalette2Utils::EBottomSectionHeight) ) ); + + LOGTEXT( _L( "CActivePalette2CheckerboardStyler::ConstructL Left")); + } + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::~CActivePalette2CheckerboardStyler() +// ----------------------------------------------------------------------------- +// +CActivePalette2CheckerboardStyler::~CActivePalette2CheckerboardStyler() + { + delete iAPTopSectionMask; + delete iAPItemMaskA; + delete iAPItemMaskB; + delete iAPGapMaskA; + delete iAPGapMaskB; + delete iAPBottomSectionMaskA; + delete iAPBottomSectionMaskB; + } + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::DrawItem() +// ----------------------------------------------------------------------------- +// +void CActivePalette2CheckerboardStyler::DrawItem(TInt aScreenPos, CFbsBitmap* aIcon, CFbsBitmap* aMask, TInt aOffsetFrame, TInt aOffsetTotal) + { + TRect area(ItemRect(aScreenPos, aOffsetFrame, aOffsetTotal)); + + iDrawBufContext->SetClippingRect(iItemsRect); + iDrawBufMaskContext->SetClippingRect(iItemsRect); + + if ( IS_ODD(aScreenPos) ) + { + BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPItem, iAPItemMaskB, EFalse, EFalse); + } + else + { + BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPItem, iAPItemMaskA, EFalse, EFalse); + } + + BlitGraphic(area.iTl + TPoint(ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemXOffset),0), iDrawBufContext, iDrawBufMaskContext, aIcon, aMask, ETrue, ETrue); + + iDrawBufMaskContext->CancelClippingRect(); + iDrawBufContext->CancelClippingRect(); + + area.Intersection(iItemsRect); + AddToDirtyRect( area ); + } + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::DrawGap() +// ----------------------------------------------------------------------------- +// +void CActivePalette2CheckerboardStyler::DrawGap(TInt aScreenPos, TInt aOffsetFrame, TInt aOffsetTotal) + { + TRect area(GapRect(aScreenPos, aOffsetFrame, aOffsetTotal)); + + iDrawBufContext->SetClippingRect(iItemsRect); + iDrawBufMaskContext->SetClippingRect(iItemsRect); + + if ( IS_ODD(aScreenPos) ) + { + BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPGap, iAPGapMaskB, EFalse, EFalse); + } + else + { + BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPGap, iAPGapMaskA, EFalse, EFalse); + } + + iDrawBufMaskContext->CancelClippingRect(); + iDrawBufContext->CancelClippingRect(); + + area.Intersection(iItemsRect); + AddToDirtyRect( area ); + } + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::AnimItem() +// ----------------------------------------------------------------------------- +// +void CActivePalette2CheckerboardStyler::AnimItem(TInt aScreenPos, CFbsBitmap* aIcon, CFbsBitmap* aMask) + { + TRect area(ItemRect(aScreenPos)); + area.iTl.iX = ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemXOffset); + area.SetWidth(ActivePalette2Utils::APDimension( ActivePalette2Utils::EItemWidth )); + + TRect clippingRect(TPoint(ActivePalette2Utils::APDimension(ActivePalette2Utils::EItemXOffset), 0), ActivePalette2Utils::APDimensionSize( ActivePalette2Utils::EItemSize ) ); + + iDrawBufContext->BitBlt(area.iTl, iAPItem, clippingRect); + + if ( IS_ODD(aScreenPos) ) + { + iDrawBufMaskContext->BitBlt(area.iTl, iAPItemMaskB, clippingRect); + } + else + { + iDrawBufMaskContext->BitBlt(area.iTl, iAPItemMaskA, clippingRect); + } + + BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, aIcon, aMask, ETrue, ETrue); + + AddToDirtyRect( area ); + } + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::DrawTopScrollArrowSection() +// ----------------------------------------------------------------------------- +// +void CActivePalette2CheckerboardStyler::DrawTopScrollArrowSection(TBool aShowArrow) + { + TRect area(TopSectionRect()); + + BlitGraphic(TPoint(0,0), iDrawBufContext, iDrawBufMaskContext, iAPTopSection, iAPTopSectionMask, EFalse, EFalse); + + if ( aShowArrow ) + { + CentreGraphic(area, iDrawBufContext, iDrawBufMaskContext, iScrollUpIcon, iScrollUpIconMask, ETrue, ETrue); + } + + AddToDirtyRect( area ); + } + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::DrawBottomScrollArrowSection() +// ----------------------------------------------------------------------------- +// +void CActivePalette2CheckerboardStyler::DrawBottomScrollArrowSection(TBool aShowArrow) + { + TRect area(BottomSectionRect()); + + if ( IS_ODD(iNumItems) ) + { + BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPBottomSection, iAPBottomSectionMaskA, EFalse, EFalse); + } + else + { + BlitGraphic(area.iTl, iDrawBufContext, iDrawBufMaskContext, iAPBottomSection, iAPBottomSectionMaskB, EFalse, EFalse); + } + + if ( aShowArrow ) + { + CentreGraphic(area, iDrawBufContext, iDrawBufMaskContext, iScrollDownIcon, iScrollDownIconMask, ETrue, ETrue); + } + + AddToDirtyRect( area ); + } + + +// ----------------------------------------------------------------------------- +// CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard() +// ----------------------------------------------------------------------------- +// +void CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboardL( + CFbsBitmap* aTargetBitmap, + const TDesC& aFileName, + TInt32 aId, + TInt32 aMaskId, + TSize aSize ) + { + LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard entered")); + CFbsBitmap* sourceIcon = NULL; + CFbsBitmap* sourceIconMask = NULL; + AknIconUtils::CreateIconLC(sourceIcon, sourceIconMask, aFileName, aId, aMaskId); + AknIconUtils::SetSize(sourceIcon, aSize); + AknIconUtils::SetSize(sourceIconMask, aSize); + LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard svg icons loaded")); + User::LeaveIfError( aTargetBitmap->Create( aSize, EColor16MA ) ); + + TSize bmpSize = aTargetBitmap->SizeInPixels(); + TRgb rgbColor = KRgbBlack; + TRgb rgbAlphaColor = KRgbBlack; + + HBufC8* lineBuf = HBufC8::NewLC( CFbsBitmap::ScanLineLength( bmpSize.iWidth, EColor16MA ) ); + TPtr8 lineDes = lineBuf->Des(); + HBufC8* maskBuf = HBufC8::NewLC( CFbsBitmap::ScanLineLength( bmpSize.iWidth, EGray256 ) ); + TPtr8 maskDes = maskBuf->Des(); + + for (TInt y = 0; y < bmpSize.iHeight; y++) + { + sourceIcon->GetScanLine( + lineDes, TPoint(0, y), bmpSize.iWidth, EColor16MA); + sourceIconMask->GetScanLine( + maskDes, TPoint(0, y), bmpSize.iWidth, EGray256); + + // EColor16MA is 4 bytes (32-bits) per pixel + TUint32* linePtr = reinterpret_cast( &lineDes[0] ); + + // EGray256 is 1 byte per pixel + TUint8* maskPtr = reinterpret_cast( &maskDes[0] ); + + for( TInt x = 0; x < bmpSize.iWidth; x++ ) + { + TUint32 color = linePtr[x]; + TUint8 mask = maskPtr[x]; + + // Get the RGB values in order to check the lightness of the pixel + // to determine whether to mask with the checkerboard pattern. + TInt lightness = + (color & 0xFF) + // blue + ((color >> 8) & 0xFF) + // green + ((color >> 16) & 0xFF); // red + + if ( mask < KMaskThreshold ) + { + // Transparent area. + linePtr[x] = KColorKey; + } + else if ( lightness > KLightnessThreshold ) + { + // Semitransparent (dithered) area. + // Make every second pixel transparent. + if ( ( x + iLineCheckerCounter ) & 1 ) + { + linePtr[x] = KColorKey; + } + else + { + linePtr[x] = KOpaqueColor; + } + } + else + { + // Fully opaque area + linePtr[x] = KOpaqueColor; + } + } + + aTargetBitmap->SetScanLine(lineDes, y); + iLineCheckerCounter++; + } + + // end draw checkers + LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard svg4")); + + CleanupStack::PopAndDestroy(maskBuf); + CleanupStack::PopAndDestroy(lineBuf); + CleanupStack::PopAndDestroy(2); // sourceIcon, sourceIconMask + LOGTEXT( _L( "CActivePalette2CheckerboardStyler::LoadAndScaleCheckerboard left")); + } + +