一个图片加载类-白红宇

#include <vector>

class CImageLoader

{

protected:

/// Full path were the images and icons are stored

CString m_sPath;

/// List with all the Bmp found in m_sPath

std::vector<CString> m_BmpNameList;

/// List with all the ico found in m_sPath

std::vector<CString> m_IcoNameList;

/**

* If fills the a_fileList with all the files with extension a_sExtension

* found int the path m_sPath

* @param a_fileList: std::vector<CString>& where the file names will be stored

* @param a_sExtension: CString with the extension of the files to found

* @return bool true if all ok

bool GetFiles(std::vector<CString>& a_fileList, CString a_sExtension);

public:

CImageLoader();

~CImageLoader();

/**

* Load a bitmap into the static

* @param a_Static: CStatic* in which the bitmap will be loaded

* @param a_iIndex: int with the index of bitmap to load. If it is -1

* then it will take one bmp randomly. Default value: -1

* @return bool indicating if it load the bitmap correctly.

bool SetBitmap(CStatic* a_Static, int a_iIndex = -1);

/**

* Change the actual cursor for a new ico that is in the

* @param a_iIndex: int position in the array. If it is -1 then it will take one

* bmp randomly. Default value -1.

void NewCursor(int a_iIndex = -1);

/**

* It returns a name of a Bmp.

* @param a_iIndex: int position of the BMP name to return in the array.

* If it is -1 then it will return a name randomly. Default value -1.

* @return CString with the BMP name

CString GetBmpName(int a_iIndex = -1);

/**

* It returns a name of a Ico.

* @param a_iIndex: int position of the ICO name to return in the array.

* If it is -1 then it will return a name randomly. Default value -1.

* @return CString with the ICO name

CString GetIcoName(int a_iIndex = -1);

/**

* It return the number of BMP names stored in the attribute m_BmpNameListt

* @return int with the lengtg of m_BmpNameList

int GetBmpListSize();

/**

* It return the number of BMP names stored in the attribute m_IcoNameList

* @return int with the lengtg of m_IcoNameList

int GetIcoListSize();

// Accesors

/// Write Accesor for m_sPath attribute

void SetPath(CString a_sPath);

/// Read Accesor for m_sPath attribute

CString GetPath();

};

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CImageLoader::CImageLoader()

{

}

CImageLoader::~CImageLoader()

{

}

bool CImageLoader::GetFiles(std::vector<CString>& a_fileList, CString a_sExtension)

{

bool btmpOk;

try

{

a_fileList.clear();

WIN32_FIND_DATA tmpFileFindData;

// Found for Path\*.Extension

CString stmpFiles = m_sPath + CString("*.") + a_sExtension;

HANDLE tmpHdFind = FindFirstFile(stmpFiles, &tmpFileFindData);

bool btmpFi = (tmpHdFind == INVALID_HANDLE_VALUE);

while (!btmpFi)

{

// If we found a file and it is not a directory, we put it into the vector.

CString stmpFileName = tmpFileFindData.cFileName;

if (!((tmpFileFindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY))

a_fileList.push_back(m_sPath + stmpFileName);//保存找到的文件

btmpFi = (FindNextFile(tmpHdFind, &tmpFileFindData) == 0);

}

btmpOk = true;

}

catch()

{

btmpOk = false;

}

return btmpOk;

}

bool CImageLoader::SetBitmap(CStatic* a_Static, int a_iIndex /* = -1 */)

{

bool btmpOk;

try

{

CString stmpBMP = GetBmpName(a_iIndex);

HANDLE tmphBMP1 = LoadImage(NULL, stmpBMP, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE);

HANDLE tmphBMP2 = a_Static->SetBitmap((HBITMAP)tmphBMP1);

if (tmphBMP2 != NULL)

DeleteObject(tmphBMP2), tmphBMP2 = NULL;

a_Static->CenterWindow();

}

catch()

{

btmpOk = false;

}

return btmpOk;

}

void CImageLoader::NewCursor(int a_iIndex /* = -1 */)

{

CString stmpICO = GetIcoName(a_iIndex);

HANDLE tmphICO = LoadImage(NULL, stmpICO, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE);

if (tmphICO != NULL)

{

DestroyCursor(GetCursor());

SetCursor((HICON)tmphICO);

}

CString CImageLoader::GetBmpName(int a_iIndex /* = -1 */)

{

CString stmpRes = "";

if (m_BmpNameList.size() > 0)

{

int itmpIndex = a_iIndex;

if ((itmpIndex < 0)||(itmpIndex >= m_BmpNameList.size()))

itmpIndex = rand()%(m_BmpNameList.size());//随机

stmpRes = m_BmpNameList[itmpIndex];

}

return stmpRes;

}

CString CImageLoader::GetIcoName(int a_iIndex /* = -1 */)

{

CString stmpRes = "";

if (m_IcoNameList.size() > 0)

{

int itmpIndex = a_iIndex;

if ((itmpIndex < 0)||(itmpIndex >= m_IcoNameList.size()))

itmpIndex = rand()%(m_IcoNameList.size());

stmpRes = m_IcoNameList[itmpIndex];

}

return stmpRes;

}

int CImageLoader::GetBmpListSize()

{

return m_BmpNameList.size();

}

int CImageLoader::GetIcoListSize()

{

return m_IcoNameList.size();

}

// ACCESSORS

void CImageLoader::SetPath(CString a_sPath)

{

m_sPath = a_sPath;

//确保最后以'\'结束

if (m_sPath[m_sPath.GetLength()-1] != '\\')

m_sPath += "\\";

GetFiles(m_BmpNameList, "bmp");

GetFiles(m_IcoNameList, "ico");

}

CString CImageLoader::GetPath()

{

return m_sPath;

}

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本文转自Phinecos(洞庭散人)博客园博客，原文链接：http://www.cnblogs.com/phinecos/archive/2008/07/06/1237049.html，如需转载请自行联系原作者