// 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;

	}