listview.h

来自「《UIQ 3 The Complete Guide》书的源代码」· C头文件 代码 · 共 95 行

//
// ListView.h - List view for our signed app
//
// Copyright (C) UIQ Technology AB, 2007
//
// This material is provided "as is" without any warranty to its performance or functionality. 
// In no event shall UIQ Technology be liable for any damages whatsoever arising out of the
// use or inabilty to use this material. 
//

#ifndef __LISTVIEW_H__
#define __LISTVIEW_H__

// these pragmas stop the compiler complaining that params to functions not being used in body
#ifdef __CW32__
#pragma warn_unusedarg off
#endif // __CW32__
#pragma warning(disable : 4100)

#include <QikAppUi.h>
#include <QikViewBase.h>
#include <QikListBoxModel.h>
#include <QikListBox.h>
#include <MQikListBoxData.h>
#include <QikEditCategoryObserver.h>
#include <mdaaudiosampleplayer.h>

#include "Engine.h"
/////////////////////////////////////////////////////////////////////////////////////////////
enum TAppSoundLevel
	{
	ESoundLevelLow,
	ESoundLevelMedium,
	ESoundLevelHigh,
	};

class CListView : public CQikViewBase, 
								public MQikListBoxObserver,
								public MQikEditCategoryObserver,
								public MMdaAudioPlayerCallback
	{
protected: 
	// from CQikViewBase
	TVwsViewId ViewId() const;
	void HandleCommandL(CQikCommand& aCommand);
	void ViewConstructL();
	void ViewDeactivated();
	void ViewActivatedL(const TVwsViewId& aPrevViewId,const TUid aCustomMessageId,const TDesC8& aCustomMessage);
	CQikCommand* DynInitOrDeleteCommandL(CQikCommand* aCommand,const CCoeControl& aControlAddingCommands);
	
	// from MQikListBoxObserver
	void HandleListBoxEventL(CQikListBox* aListBox,TQikListBoxEvent aEventType,TInt aItemIndex,TInt aSlotId);

	//from MQikEditCategoryObserver
	TBool OkToAddCategory() const;
	TBool DoAddCategoryL(TInt& aHandle);
	TBool OkToRenameCategory(TInt aHandle, const TDesC& aNewName) const;
	TBool DoRenameCategoryL(TInt aHandle, const TDesC& aNewName);
	TBool OkToMergeCategories(TInt aSourceHandle, TInt aTargetHandle) const;
	TBool DoMergeCategoriesL(TInt aSourceHandle, TInt aTargetHandle);
	TBool OkToDeleteCategory(TInt aHandle) const;
	TBool DoDeleteCategoryL(TInt aHandle);
	TBool IsCategoryEmpty(TInt aHandle) const;

	// from MMdaAudioPlayerCallback
	void MapcInitComplete(TInt aError,const TTimeIntervalMicroSeconds& aDuration);
	void MapcPlayComplete(TInt aError);

	// new methods
	void UpdateCommandAvailability();
	void UpdateListBoxL();
	void SetCurrentEntry();
	void SortListL(const TFolderEntrySortType aType,const TFolderEntrySortOrder aOrder,const TInt aCmdId);
	void SendFileAsL();
	void DeleteCurrentEntryL();
	void TidyUpSoundPlayer();
	void PlayAudioEntryL();
	void OpenEntryL();

public:
	// new methods
	~CListView();
	CListView(CQikAppUi& aAppUi,CAppEngine* aEngine);
	
protected:
	CAppEngine* iEngine;

	// sound playback support
	TAppSoundLevel iLevel;
	TBool iSoundInitialized;
	CMdaAudioPlayerUtility* iSoundPlayer;
	};

#endif // __LISTVIEW_H__