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C/C++

chxavplaylistnavicontrol.h：源码内容

							
/*============================================================================*
 *
 * (c) 1995-2002 RealNetworks, Inc. Patents pending. All rights reserved.
 *
 *============================================================================*/
#if !defined(CHXAVPLAYLISTNAVICONTROL_INCLUDED__)
#define CHXAVPLAYLISTNAVICONTROL_INCLUDED__
#include "chxavrefptr.h"
#include "chxavtextcontrol.h"
#include "chxavplayer.h"
#include "comptr.h"
// class CHXAvPlaylistNaviControl
class CHXAvPlaylistNaviControl
: public CCoeControl
, public IHXSymPlayerStateObserver
{
public:
// ctor and dtor
    CHXAvPlaylistNaviControl();
    virtual ~CHXAvPlaylistNaviControl();
    static CHXAvPlaylistNaviControl*  NewL(CHXAvPlayer* pPlayer, const CCoeControl& parent);
    void ConstructL(CHXAvPlayer* pPlayer, const CCoeControl& parent);
    void SetRefreshCommandL(const CHXAvCommand& cmd);
    // IHXSymPlayerStateObserver
    void OnAdvancePlaylist();
    void UpdatePlaylistTextL();
protected:
    virtual void Draw(const TRect& rect) const;
    virtual TInt CountComponentControls() const;
    virtual CCoeControl* ComponentControl(TInt aIndex) const;
    
    void ShowPlaylistText(bool bShow);
    void OnHidePlaylistTextTimer();
private:
// disallow assignment and copy
    CHXAvPlaylistNaviControl(const CHXAvPlaylistNaviControl& rhs);
    CHXAvPlaylistNaviControl& operator=(const CHXAvPlaylistNaviControl& rhs);
public:
// methods
private:
// implementation
private:
// data
    CHXAvCommandPtr	        m_spRefreshCmd;
    refptr<CHXAvTextControl>    m_spPlaylistText;
    TRect                       m_rcParent;
    comptr<CHXAvPlayer>         m_spPlayer;
};
inline
void CHXAvPlaylistNaviControl::SetRefreshCommandL(const CHXAvCommand& cmd)
{
    m_spRefreshCmd = cmd.CloneL();
}
#endif // CHXAVPLAYLISTNAVICONTROL_INCLUDED__

						