examples/Graphics/WS/Direct/Direct.h

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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Description:  
*/
// Application framework classes for Direct Screen Area (DSA) API example
//

#ifndef __DIRECT_H
#define __DIRECT_H

#include <coecntrl.h>
#include <coeccntx.h>
#include <coemain.h>

#include <eikappui.h>
#include <eikapp.h>
#include <eikdoc.h>
#include <uikon.hrh>

#include <direct.rsg>
#include "Direct.hrh"

const TUid KUidExample = { 0xE8000054 };

class CDirectDisplayLife;
class CLifeEngine;

// View, a window containing a DSA
class CExampleAppView : public CCoeControl
        {
public:
        // View state
        enum {
                EDirectNotStarted=0,    // DSA not used
                EDirectStarted,                 // DSA in use
                EDirectPaused                   // Use of DSA temporarily halted
                };

public:
        // Construction & destruction
        CExampleAppView(CLifeEngine& aLifeEngine);
        ~CExampleAppView();
        void ConstructL(const TRect& aRect);

        // Start using the DSA
        void StartDirectL();
        // Pause use of the DSA
        void PauseDirect();
        // Restart use of the DSA after pausing
        void RestartDirect();

        // Gets the view state
        TInt State() const;

private:
        // from CCoeControl
        void Draw(const TRect&) const;

private:
        // The object that handles the DSA
        CDirectDisplayLife* iDirectDisplayLife;
        // The data the view displays
        CLifeEngine& iLifeEngine;
        // View state
        TInt iState;
        };

// App UI, handles user commands
class CExampleAppUi : public CEikAppUi
        {
public:
        // Construction & destruction
        void ConstructL();
        ~CExampleAppUi();

private:
        // from CEikAppUi
        void HandleCommandL(TInt aCommand);

private:
        class COverlayDialog: public CActive
                {
        public:
                COverlayDialog();
                ~COverlayDialog();
                void ShowDialog();

        private:
                void RunL();
                void DoCancel();

        private:
                RNotifier iNotifier;
                TInt iR;
                };

private:
        // The app view
        CExampleAppView* iAppView;
        COverlayDialog* iOverlayDialog;
        };

// App document. Owns the engine.
class CExampleDocument : public CEikDocument
        {
public:
        // Construction & destruction
        CExampleDocument(CEikApplication& aApp);
        ~CExampleDocument();

        // Gets the engine
        CLifeEngine& LifeEngine() const;

private:
        // from CEikDocument
        CEikAppUi* CreateAppUiL();

private:
        // The engine
        CLifeEngine* iLifeEngine;
        };

// Application class
class CExampleApplication : public CEikApplication
        {
private: // from CApaApplication
        CApaDocument* CreateDocumentL();
        TUid AppDllUid() const;
        };

#endif

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