// Copyright (c) 2007-2009 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:

 // This file is part of manual test (group\inc113743.mmp) to check Wserv behaviour when

 // exposing a transparent window that is obscured by some opaque child window above it.

 // Without the fix, that transparent window will be drawn as opaque window

 // because its transparent regions is null (not re-created due to its update flag is not

 // set as it is not traceable via transparent regions linked list of windows above it.

 // Some illustration when the situation will trigger the defect (side view),

 // ----       Child (opaque)

 // ---------- Parent (transparent)

 // ----       Other transparent window obscured by opaque child

 // This defect is only reproducable when window shadowing is not used, so it cannot be 

 // tested from standard Wserv test framework.

 // @SYMTestCaseID		GRAPHICS-WSERV-0450

 // @SYMDEF  			INC113743

 // @SYMTestCaseDesc    Perform test on Wserv behaviour in exposing transparent windows which is obscured indirectly by opaque child window

 // @SYMTestPriority    High

 // @SYMTestStatus      Implemented

 // @SYMTestActions     Create opaque and transparent windows in the following dimension and z-order

 // ----       opaque child

 // ---------- transparent parent

 // ----       other transparent underneath obscured and non traceable via transparent parent iTransparentRegions

 // and then make transparent parent window invisible

 // @SYMTestExpectedResults The expected result are: other transparent window underneath is exposed and redrawn properly not becoming opaque

 // 

 //

 #include <e32std.h>

 #include <w32std.h>

 #include <fbs.h>

 #define ENullWsHandle 0xffffffff

 void MainL()

 	{

 	const TSize KTestSize(320,240);

 	const TSize KHalfSize(160,240);

 	const TInt KScreenNo = 1;

 	RRegion shape;

 	shape.AddRect(TRect(0,0,160,120));

 	shape.AddRect(TRect(160,120,320,240));

 	CleanupClosePushL(shape);

 	RWsSession ws;

 	User::LeaveIfError(ws.Connect());

 	CleanupClosePushL(ws);

 	CWsScreenDevice* scr = new(ELeave) CWsScreenDevice(ws);

 	CleanupStack::PushL(scr);

 	User::LeaveIfError(scr->Construct(KScreenNo));

 	TDisplayMode displayMode = scr->DisplayMode();

 	CWindowGc* gc = NULL;

 	User::LeaveIfError(scr->CreateContext(gc));

 	CleanupStack::PushL(gc);

 	RWindowGroup group(ws);

 	User::LeaveIfError(group.Construct(0x0badface, ETrue));

 	CleanupClosePushL(group);

 	// create transparent window underneath that will be obscured by some opaque child window above it

 	RWindow transWinUnderneath(ws);

 	User::LeaveIfError(transWinUnderneath.Construct(group, ENullWsHandle));

 	CleanupClosePushL(transWinUnderneath);

 	transWinUnderneath.SetShadowDisabled(ETrue);

 	transWinUnderneath.SetExtent(TPoint(0,0),KTestSize/*KHalfSize*/);

 	transWinUnderneath.SetTransparencyAlphaChannel();

 	transWinUnderneath.SetRequiredDisplayMode(EColor64K);

 	transWinUnderneath.SetBackgroundColor(TRgb(255,0,0,128));

 	transWinUnderneath.SetShape(shape);

 	transWinUnderneath.Activate();

 	transWinUnderneath.Invalidate();

 	transWinUnderneath.BeginRedraw();

 	transWinUnderneath.EndRedraw();

 	ws.Flush();

 	User::After(1*1000*1000);

 	// save the reference image (semi-transparent red window)

 	CFbsBitmap* refImage = new(ELeave) CFbsBitmap;

 	CleanupStack::PushL(refImage);

 	User::LeaveIfError(refImage->Create(KTestSize, displayMode));

 	scr->CopyScreenToBitmap(refImage);

 	// create transparent window parent which will have opaque child

 	RWindow transWinParent(ws);

 	User::LeaveIfError(transWinParent.Construct(group, ENullWsHandle));

 	CleanupClosePushL(transWinParent);

 	transWinParent.SetShadowDisabled(ETrue);

 	transWinParent.SetExtent(TPoint(0,0),KTestSize);

 	transWinParent.SetTransparencyAlphaChannel();

 	transWinParent.SetRequiredDisplayMode(EColor64K);

 	transWinParent.SetBackgroundColor(TRgb(255,255,255,0));

 	transWinParent.Activate();

 	transWinParent.Invalidate();

 	transWinParent.BeginRedraw();

 	transWinParent.EndRedraw();

 	ws.Flush();

 	// create opaque child window that obscure transparent window underneath (not its parent)

 	RWindow opaqueWinChild(ws);

 	User::LeaveIfError(opaqueWinChild.Construct(transWinParent, ENullWsHandle));

 	CleanupClosePushL(opaqueWinChild);

 	opaqueWinChild.SetExtent(TPoint(0,0),KTestSize/*KHalfSize*/);

 	opaqueWinChild.SetRequiredDisplayMode(EColor64K);

 	opaqueWinChild.SetShape(shape);

 	opaqueWinChild.Activate();

 	opaqueWinChild.Invalidate();

 	opaqueWinChild.BeginRedraw();

 	gc->Activate(opaqueWinChild);

 	gc->SetBrushStyle(CGraphicsContext::ESolidBrush);

 	gc->SetPenStyle(CGraphicsContext::ENullPen);

 	gc->SetBrushColor(KRgbGreen);

 	gc->Clear();

 	gc->SetBrushColor(KRgbBlue);

 	gc->DrawEllipse(KTestSize/*KHalfSize*/);

 	gc->Deactivate();

 	opaqueWinChild.EndRedraw();

 	ws.Flush();

 	User::After(1*1000*1000);

 	// preform the test by making transparent window parent invisible

 	transWinParent.SetVisible(EFalse);

 	ws.Flush();

 	User::After(2*1000*1000);

 	// save the test image (without the fix this would be an opaque red window)

 	CFbsBitmap* testImage = new(ELeave) CFbsBitmap;

 	CleanupStack::PushL(testImage);

 	User::LeaveIfError(testImage->Create(KTestSize, displayMode));

 	scr->CopyScreenToBitmap(testImage);

 	_LIT(KPanicMsg, "Test Failed");

 	TInt nbytes = CFbsBitmap::ScanLineLength(KTestSize.iWidth, displayMode)*KTestSize.iHeight;

 	if (Mem::Compare((TUint8*)testImage->DataAddress(), nbytes, (TUint8*)refImage->DataAddress(), nbytes)!=0)

 		User::Panic(KPanicMsg, 0);

 	CleanupStack::PopAndDestroy(10, &shape);

 	}

 GLDEF_C TInt E32Main()

 	{

 	CTrapCleanup* cs = CTrapCleanup::New();

 	if (!cs)

 		return KErrNoMemory;

 	TRAPD(err,MainL());

 	delete cs;

 	return err;

 	}