textwnd.h

WinCE下文字滚动的实例

// TextWnd.h: interface for the CTextWnd class.
//
//Version:
//	0.1.4
//
//Date:
//	2008.02.27
//
//Description:
//	The base window version:
//		CWndBase		-	0.1.8
//		CMemDC			-	0.1.0
//		CStrStore		-	1.0.0
//////////////////////////////////////////////////////////////////////

#pragma once
#include "wndbase.h"
#include "StrStore.h"
#include "MemDC.h"

//----------------------------------------------------------
//Enum value type
enum DirectionValue
{
	DRT_NULL,
	DRT_LEFT,
	DRT_RIGHT,
	DRT_UP,
	DRT_DOWN
};
//----------------------------------------------------------
class CTextWnd :
	public CWndBase
{
	
public:
	virtual ~CTextWnd(void);
	CTextWnd(void);

	virtual BOOL Create(HINSTANCE hInst, HWND hWndParent, const TCHAR *pcszWndClass, const TCHAR *pcszWndName,BOOL bMsgThrdInside = FALSE);

	BOOL Move(const RECT * prcWnd);
	BOOL SetText(const TCHAR * pcszText);
	BOOL SetTxtPath(const TCHAR * pcszPath);
	BOOL Play(void);
	BOOL Pause(void);
	BOOL Stop(void);
	void SetDirection(DirectionValue dtValue);
	void SetInterval(DWORD dwInterval);
	void SetMovePixel(int iPixel);
	void SetTxtColor(COLORREF crColor);
	void SetTxtPointSize(int iPointSize);
	void SetTxtWeight(int iWeight);
	void SetBkColor(COLORREF crColor);
	BOOL SwitchNext(void);
	BOOL SwitchPrevious(void);


private:
	static BOOL CheckFile(const TCHAR * pszFileName);
	BOOL ReadCurTxt(void);
	void OnPaint(HWND hWnd, UINT wMsg, WPARAM wParam, LPARAM lParam);
	void OnWindowPosChanged(HWND hWnd, UINT wMsg, WPARAM wParam, LPARAM lParam);
	BOOL ResetTxtInfoRect(void);	
	BOOL InitDCTxtInfo(void);
	BOOL FindFile(const TCHAR *pszPath,CStrStore *pStore,BOOL (*pCheckFunc)(const TCHAR *pcszPath));

private:
	//Callback function
	virtual LRESULT WndProc(HWND hWnd, UINT wMsg, WPARAM wParam, LPARAM lParam);
	virtual void DrawBackground(HDC hdc);

private:
	CStrStore m_FileStore;
	int m_iIndexCurTxt;
	TCHAR *m_pszTxtInfo;
	int m_iWndWidth;
	int m_iWndHeight;
	int m_iTxtInfoX;
	int m_iTxtInfoY;
	int m_iTxtInfoWidth;
	int m_iTxtInfoHeight;
	int m_iMovePixel;
	int m_iTxtInfoPointSize;	
	COLORREF m_crTxtInfoColor;
	COLORREF m_crBkColor;
	int m_iTxtInfoWeight;
	CMemDC m_DCTxtInfo;
	BOOL m_bInited;

	

private:	
	//The value type is for the TimerThread,meaning the action
	enum TimeoutAction
	{
		TA_NULL,
		TA_MOVE,
		TA_EXIT,
		TA_STOP
	};
	HANDLE m_hEventTimer;
	TimeoutAction m_taCurAction;
	DWORD m_dwInterval;
	DirectionValue m_dtValue;
	static DWORD TimerThread(PVOID pArg);
	


	
	
	
	
	
};