aoexamplecontainer.h

来自「Active Object实现动画」· C头文件 代码 · 共 80 行

/*
* ==============================================================================
*  Name     : CAOExampleContainer from AOExampleContainer.h
*  Part of  : AOExample
*  Created  : 3.5.2004 by Markus Pelkonen
*  Description: Declares container control for application.
*  Version  :
*  Copyright: Nokia
* ==============================================================================
*/

#ifndef AOEXAMPLECONTAINER_H
#define AOEXAMPLECONTAINER_H

#include <coecntrl.h>

class CEikEdwin;

/**
 * Declares container control for the ui class. This controller holds a one
 * editor component that is used to show character data.
 */
class CAOExampleContainer : public CCoeControl, MCoeControlObserver
    {
    public: // methods

        /**
        * Two phase constructor.
        * @param aRect Frame rectangle for container.
        */
        void ConstructL(const TRect& aRect);

        /**
        * Destructor.
        */
        ~CAOExampleContainer();

        /**
        * Append 8 or 16 bit character data to the editor for viewing.
        */
        void AppendTextL( const TDesC8& aText );
        void AppendTextL( const TDesC16& aText );

        /**
        * Clear editor component.
        */
        void Clear();

    private: // methods

        /**
        * Update the editor component with data found from iBuf.
        * Any '\n' character is converted to UCS_PARASEP(0x2029)
        * before settting the editor component text.
        */
        void UpdateTextL(TInt aFromIndex);

    public: // from CCoeControl, CAOExampleAppUi uses OfferKeyEventL -> public

        virtual TInt CountComponentControls() const;
        virtual CCoeControl* ComponentControl( TInt aIndex ) const;
        virtual TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent,
                                             TEventCode aType);

    private: // from MCoeControlObserver

        virtual void HandleControlEventL( CCoeControl* aControl,
                                          TCoeEvent aEventType);

    private: // attributes

        /** editor component used to show character data */
        CEikEdwin* iTextBox;

        /** internal buffer used to hold character data. */
        TBuf<4096> iBuf;
    };

#endif