examples/Graphics/WS/Direct/Direct.cpp

/*
Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of Nokia Corporation nor the names of its contributors
  may be used to endorse or promote products derived from this software
  without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Description:  
*/


#include "CLifeEngine.h"
#include "Direct.h"
#include "CDirectDisplayLife.h"

#include <eikenv.h>
#include <eikmenub.h>

#include <eikspane.h>

#include <eikstart.h>

//
// CExampleAppView
//

CExampleAppView::CExampleAppView(CLifeEngine& aLifeEngine)
: iLifeEngine(aLifeEngine)
        {
        }

void CExampleAppView::ConstructL(const TRect& aRect)
        {
        // Create window
        CreateWindowL();
        SetRect(aRect);

        // Set up direct displayer for life engine
        iDirectDisplayLife = new (ELeave) CDirectDisplayLife (
                iEikonEnv->WsSession(),         // Window server session
                Window(),                                       // The window itself
                iLifeEngine);
        iDirectDisplayLife -> ConstructL();

        ActivateL();
        }

CExampleAppView::~CExampleAppView()
        {
        delete iDirectDisplayLife;
        }

// Start using the DSA
void CExampleAppView::StartDirectL()
        {
        iDirectDisplayLife -> StartL();
        iState = EDirectStarted;
        }

// Pause use of the DSA
void CExampleAppView::PauseDirect()
        {
        iState = EDirectPaused; 
        iDirectDisplayLife -> Cancel();
        }

// Restart use of the DSA after pausing
void CExampleAppView::RestartDirect()
        {
        iState = EDirectStarted;
        iDirectDisplayLife -> Restart(RDirectScreenAccess::ETerminateCancel);
        }

// Gets the view state
TInt CExampleAppView::State() const
        {
        return iState;
        }


void CExampleAppView::Draw(const TRect& /*aRect*/) const
        {
        CWindowGc& gc = SystemGc();
        // white out whole rectangle
        TRect rect=Rect();
        gc.SetPenStyle(CGraphicsContext::ENullPen);
        gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
        gc.SetBrushColor(KRgbWhite);
        gc.DrawRect(rect);
        // border
        rect.Shrink(10,10);
        gc.SetBrushStyle(CGraphicsContext::ENullBrush);
        gc.SetPenStyle(CGraphicsContext::ESolidPen);
        gc.DrawRect(rect);
        }


//
// CExampleAppUi
//

void CExampleAppUi::ConstructL()
        {
        BaseConstructL();

        // Construct the view
        iAppView=new(ELeave) CExampleAppView(static_cast<CExampleDocument*>(Document())->LifeEngine());
        iAppView->ConstructL(ClientRect());

        // Construct the example overlaying dialog
        iOverlayDialog = new (ELeave) COverlayDialog();
        CActiveScheduler::Add(iOverlayDialog);
        }

CExampleAppUi::~CExampleAppUi()
        {
        delete iAppView;
        iOverlayDialog->Cancel();
        delete iOverlayDialog;
        }

// Handle menu commands
void CExampleAppUi::HandleCommandL(TInt aCommand)
        {
        switch (aCommand)
                {
        // Start command
        case EExampleCmd1:
                // Different action required for very first start
                // And subsequent restarts
                if (iAppView -> State() == CExampleAppView::EDirectNotStarted)
                        iAppView -> StartDirectL();
                else
                        {
                        iAppView -> PauseDirect();
                        static_cast<CExampleDocument*>(Document())->LifeEngine().Reset();
                        iAppView -> RestartDirect();
                        }
                break;
        // Test overlay command
        case EExampleCmd2:
                iOverlayDialog->ShowDialog();
                break;
        // Close command
        case EEikCmdExit: 
                Exit();
                break;
                }
        }

//
// CExampleAppUi::COverlayDialog
//

CExampleAppUi::COverlayDialog::COverlayDialog()
:CActive(EPriorityStandard)
        {
        iNotifier.Connect();
        }

CExampleAppUi::COverlayDialog::~COverlayDialog()
        {
        Cancel();
        iNotifier.Close();
        }

void CExampleAppUi::COverlayDialog::ShowDialog()
        {
        _LIT(KLine1,"Overlaying dialog");
        _LIT(KLine2,"Owned by another thread");
        _LIT(KBut,"OK");

        // Use a notifier to display a dialog from the notifier server thread
        iNotifier.Notify(KLine1,KLine2,KBut,KBut,iR,iStatus);
        SetActive();
        }

void CExampleAppUi::COverlayDialog::RunL()
        {
        // Don't care what the dialog returned
        }

void CExampleAppUi::COverlayDialog::DoCancel()
        {
        }

//
// CExampleDocument
//

CExampleDocument::CExampleDocument(CEikApplication& aApp)
                : CEikDocument(aApp)
        {
        }

CExampleDocument::~CExampleDocument()
        {
        delete iLifeEngine;
        }

CLifeEngine& CExampleDocument::LifeEngine() const
        {
        return *iLifeEngine;
        }

CEikAppUi* CExampleDocument::CreateAppUiL()
        {
        // Get a random seed from the timer
        User::After(1);
        TTime now;
        now.HomeTime();

        // Create engine
        iLifeEngine = new (ELeave) CLifeEngine(now.Int64());
        return new(ELeave) CExampleAppUi;
        }

//
// CExampleApplication
//

TUid CExampleApplication::AppDllUid() const
        {
        return KUidExample;
        }

CApaDocument* CExampleApplication::CreateDocumentL()
        {
        return new (ELeave) CExampleDocument(*this);
        }

//
// DLL interface
//

EXPORT_C CApaApplication* NewApplication()
        {
        return new CExampleApplication;
        }

                                                                                
extern TInt E32Main()           
        {
        return EikStart::RunApplication(NewApplication);
        }

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