view.h

《SymbianOSC手机应用开发》源码

// view.h
//
// Copyright (c) 2000 Symbian Ltd.  All rights reserved.
//

#ifndef __VIEW_H
#define __VIEW_H

#include <coecntrl.h>
#include <coemain.h>
#include <coeview.h>
#include <MdaAudioSamplePlayer.h>

#include "engine.h"
#include "tp-ships-uids.h"

// forward declarations
class CGameController; 
class MGameViewCmdHandler;
class CSoundEffects;
class CEikonEnv;

// This data is common to all the fleet views
// Can't use writeable static data mebers in the base class,
// so use this helper struct for storage.
class CFleetViewData: public CBase
	{
// Views are friends, as they access all the data
friend class CFleetView;
friend class COppFleetView;
friend class CMyFleetView;
	
public:
	// Constructor for use by appUI
	CFleetViewData(CSoundEffects& aSoundEffects, 
		MGameViewCmdHandler& aCmdHandler,
		const TRect& aRect);
	void ConstructL();
	~CFleetViewData();
			
	// zoom
	void SetZoomL(TInt aZoomFactor);
	//TInt GetZoom() const;

private:
// data set by appUI	
	// command handler
	MGameViewCmdHandler& iCmdHandler;
	// sound effects generator
	CSoundEffects& iSoundEffects;
	// window co-ordinates
	TRect iClientRect;
	// view rectangle
	TRect iRect;
	
private:
// data dependent on zooming
	TInt iZoomFactor;
	// pre-calculated drawing stuff
	CFont* iBorderFont;
	CFont* iTileFont;
	TRect iBoardRect; // whole board
	TRect iTopBorder; // all of top border
	TRect iBottomBorder; // all bottom border
	TRect iLeftBorder; // left border, excluding top and bottom
	TRect iRightBorder; // right border, excluding top and bottom
	TRect iSeaArea; // sea area, inside board
	TInt iTileSize; // side of board tile (1/8th board rect)
	TInt iBorderSize; // size of border
private:
	// cached helper
	CEikonEnv* iEnv;
	};
	
//
// CFleetView: base class for displaying battleships board
//
class CFleetView : public CCoeControl, public MCoeView
    {
public:
	~CFleetView();
		
	// cursor
	void SetCursorOff();
	void SetCursor(TInt aX, TInt aY);
	TBool CursorOn() const;
	void GetCursor(TInt& aX, TInt& aY) const;
	
	// incremental drawing
	void DrawTilesNow() const;
	
	// sound
	void ExplSound();
	void MissSound();
	void SunkSound();

protected:
	// construct
	CFleetView(CFleetViewData& aFleetViewData, TFleet& aFleet);
    void ConstructL();

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

	// from MCoeView
	TVwsViewId ViewId() const;
	void ViewActivatedL(const TVwsViewId& aPrevViewId,TUid aCustomMessageId,const TDesC8& aCustomMessage);
	void ViewDeactivated();

	// auxiliary draw functions
	void DrawOutside() const;
	void DrawBorders() const;
	void DrawHorizontalBorder(const TRect& aRect) const;
	void DrawVerticalBorder(const TRect& aRect) const;
	void DrawTiles() const;
	virtual void DrawTile(TInt aX, TInt aY) const;

	// cursor movement
	void MoveCursor(TInt aDx, TInt aDy);
	
protected:
	// Data common to all the fleet views
	CFleetViewData& iData;
	// View specific data
	TFleet& iFleet;
	// cursor
	TBool iCursorOn;
	TInt iCursorX;
	TInt iCursorY;
	TUid iViewUid;	// UID of view
	};

//
// COppFleetView: specialises CFleetView for viewing opposition fleet
//
class COppFleetView : public CFleetView
    {
public:
	static COppFleetView* NewL(CFleetViewData& aFleetViewData, 
		TFleet& aFleet, TBool aP1);

private:
	// construct
	COppFleetView(CFleetViewData& aFleetViewData, 
		TFleet& aFleet, TBool aP1);

	// from CCoeControl
	void HandlePointerEventL(const TPointerEvent& aPointerEvent);
	TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType);
	};


//
// CMyFleetView: specialises CFleetView for viewing own fleet
//
class CMyFleetView : public CFleetView
    {
public:
	static CMyFleetView* NewL(CFleetViewData& aFleetViewData, 
		TFleet& aFleet, TBool aP1);
		
private:
	// Construct
	CMyFleetView(CFleetViewData& aFleetViewData, TFleet& aFleet, TBool aP1);
	};


//
// CHiderView: hides display between turns
//
class CHiderView : public CCoeControl, public MCoeView
    {
public:
	~CHiderView();
    void ConstructL(const TRect& aRect);
	// from MCoeView
	TVwsViewId ViewId() const;

private: 
	// from CCoeControl
	void Draw(const TRect&) const;
	// from MCoeView
	void ViewActivatedL(const TVwsViewId& aPrevViewId,TUid aCustomMessageId,const TDesC8& aCustomMessage);
	void ViewDeactivated();

private:
	CFbsBitmap* iHideBitmap;
	};


//
// CSoundEffects: provides sound effects for views
//
class CSoundEffects : public CBase
	{
public:
	// Sounds that can be played
	enum TSound {
		EExplosion,
		EMiss,
		ESunk
		};
public:
	// construct/destruct
	CSoundEffects();
	void ConstructL();
	~CSoundEffects();
	// Cancel sounds
	void CancelSounds();
	// Do sound
	void PlaySound(TSound aSound);

private:
	// construction helper
	void ConstructSoundPlayerL(const TDesC& aPath, const TDesC& aName, 
		CMdaAudioPlayerUtility*& aPlayer );
	
private:
	// Handles callbacks from sound player
	class TAudioPlayerCallBackHandler: public MMdaAudioPlayerCallback
		{
		friend class CSoundEffects;
	public:
		TAudioPlayerCallBackHandler();
	private:
		// Implements MMdaAudioPlayerCallback
		void MapcInitComplete(TInt aError, const TTimeIntervalMicroSeconds& aDuration);
		void MapcPlayComplete(TInt aError);
	private:
		TBool iOK;
		TBool iPlaying;
		};

private:
	CMdaAudioPlayerUtility* iExplSoundPlayer;
	CMdaAudioPlayerUtility* iMissSoundPlayer;
	CMdaAudioPlayerUtility* iSunkSoundPlayer;
	CMdaAudioPlayerUtility* iCurrentSoundPlayer;
	TAudioPlayerCallBackHandler iSoundPlayerCallBack;
	};

#endif