#include "CFilePathFinder.h"
#include <QDir>

void CFilePathFinder::FindImagePaths(QString ImagePath)
{
	m_ListFilePath.clear();
	QDir dir(ImagePath);
	if (!dir.exists())
	{
		return;
	}
	QStringList ImageList;
	ImageList << "*.bmp" << "*.jpg" << "*.png" << "*.jpeg";//向字符串列表添加图片类型
	dir.setNameFilters(ImageList);//获得文件夹下图片的名字

	int ImageCount = dir.count();//获得dir里名字的个数，也表示文件夹下图片的个数


	for (int i = 0; i < ImageCount; i++)
	{
		QString ImageName = ImagePath + "//"+dir[i];
		m_ListFilePath.append(ImageName);
	}
}

CFilePathFinder::CFilePathFinder()
{
	m_eFileFrom = E_FileFrom::e_filePath;
	m_nListIndex = 0;
}

CFilePathFinder::~CFilePathFinder()
{

}

void CFilePathFinder::SetFilePath(E_FileFrom filefrom, QString path)
{
	m_eFileFrom = filefrom;
	switch (filefrom)
	{
	case e_filePath:
		m_strFileFolderPath = path;
		m_ListFilePath.clear();
		m_ListFilePath.push_back(path);
		break;
	case e_fileFolder:
		m_nListIndex = 0;
		m_strFileFolderPath = path;
		FindImagePaths(path);
		break;
	default:
		break;
	}
}

QString CFilePathFinder::GetOneFilePath()
{
	switch (m_eFileFrom)
	{
	case e_filePath:
		return m_strFileFolderPath;
		break;
	case e_fileFolder:
		m_nListIndex++;
		if (m_ListFilePath.size() <= 0)
		{
			return QString();
		}
		return m_ListFilePath[(m_nListIndex-1)% m_ListFilePath.size()];
		break;
	default:
		break;
	}
	return QString();
}


QList<QString>  CFilePathFinder::GetAllPath()
{
	return m_ListFilePath;
}