package com.wistron.WiViewer;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import Utilities.CSStaticData;
import android.util.Log;
/**
* 读取指定文件夹，为PhotoViewer提供图片路徑
*
* @author hubert
* @since 2011-09-08 09:26:45
*
*/
public class MediaFilePicker
{
public static final int TYPE_MOVIE = 0x01;
public static final int TYPE_PICTURE = 0x02;
public static final int TYPE_UNKNOWN = 0x03;
private List<String> m_filelist = new ArrayList<String>(); // 媒体文件列表
private String m_currentfilename = null; // 当前文件名称
private int m_currentfileindex = 0; // 当前文件（在文件列表中的索引）
private int m_filecounts = 0; // 文件总数
private List<String> suffixList = new ArrayList<String>();
private String mediaLib = null; // 默认的媒体文件夹
private String TAG = " MediaFilePicker";
private FileOperation fileOperation;
private List<File> fileList = new ArrayList<File>();
// 文件种类有待补充
private String[] extensionMov =
{ "mp4", "3gp", "3g2", "ts", "mkv", "m4v", "webm", "avi", "xvid", "divx",
"wmv", "asf" };// ts mkv
private String[] extensionPic =
{ "jpg", "jpeg", "png", "bmp", "jps", "gif", "mpo", "webp", "wbmp", "jpe" };// gif
/**
* 根據文件列表和当前文件路径实例化
*
* @author WH1107011
* @param List
* <String> fileList
* @param String
* currentFileName
*/
public MediaFilePicker(List<String> fileList, String currentFileName)
{
if (fileList == null)
return;
this.m_filelist = fileList;
this.m_currentfilename = currentFileName;
this.m_filecounts = fileList.size();
setCurrentFileName(currentFileName);// 设置当前索引
}
public MediaFilePicker(List<String> fileList, int index)
{
if (fileList == null)
return;
this.m_filelist = fileList;
this.m_filecounts = fileList.size();
this.m_currentfileindex = index;
if (index == -1)
{
this.m_currentfilename = null;
} else
{
this.m_currentfilename = m_filelist.get(index);
}
}
public MediaFilePicker(String currentFileName)
{
if (currentFileName == null)
return;
List<String> fileList = new ArrayList<String>();
fileList.add(currentFileName);
this.m_filelist = fileList;
this.m_currentfilename = currentFileName;
this.m_filecounts = fileList.size();
setCurrentFileName(currentFileName);// 设置当前索引
}
public void updateCurrentFilePath(String filepath)
{
if (filepath != null)
{
m_filelist.set(m_currentfileindex, filepath);
m_currentfilename = filepath;
}
}
/**
* 在媒体链表中过滤出视频文件
*
* @return
*/
public ArrayList<String> getVideoList()
{
ArrayList<String> mVideoList = new ArrayList<String>();
for (int i = 0; i < m_filelist.size(); i++)
{
if (getMediaType(i) == TYPE_MOVIE)
{
mVideoList.add(m_filelist.get(i));
}
}
return mVideoList;
}
public MediaFilePicker(int viewState, String currentFileName)
throws IOException
{
// 扫描默认媒体目录
mediaLib = TDStaticData.ROOT_DIR;
if (!new File(mediaLib).exists())
{
if (CSStaticData.DEBUG)
Log.e(TAG, "ROOT_DIR is not exist");
return;
} else if (new File(mediaLib).list() == null)
{
if (CSStaticData.DEBUG)
Log.e(TAG, "ROOT_DIR is empty");
return;
}
fileOperation = new FileOperation(mediaLib);
if (viewState == TDStaticData.VIEWMODE_ALL_VIEW)
{
suffixList.clear();
suffixList.add(".jps");
suffixList.add(".jpg");
suffixList.add(".jpeg");
suffixList.add(".png");
suffixList.add(".mpo");
suffixList.add(".bmp");
suffixList.add(".webp");
suffixList.add(".mp4");
suffixList.add(".3gp");
suffixList.add(".3g2");
suffixList.add(".m4v");
suffixList.add("webm");
fileList = fileOperation.getFileListBySuffix(suffixList, null);
m_filecounts = fileList.size();
}
if (viewState == TDStaticData.VIEWMODE_IMAGE_VIEW)
{
suffixList.clear();
suffixList.add(".jps");
suffixList.add(".jpg");
suffixList.add(".jpeg");
suffixList.add(".png");
suffixList.add(".mpo");
suffixList.add(".bmp");
suffixList.add(".gif");
suffixList.add(".webp");
fileList = fileOperation.getFileListBySuffix(suffixList, null);
m_filecounts = fileList.size();
}
if (viewState == TDStaticData.VIEWMODE_VIDEO_VIEW)
{
suffixList.clear();
suffixList.add(".mp4");
suffixList.add(".3gp");
suffixList.add(".3g2");
suffixList.add(".m4v");
suffixList.add("webm");
fileList = fileOperation.getFileListBySuffix(suffixList, null);
m_filecounts = fileList.size();
}
for (int i = 0; i < fileList.size(); i++)
{
m_filelist.add(fileList.get(i).getAbsolutePath().toString());
}
if (currentFileName == null)
{
currentFileName = m_filelist.get(0);
}
setCurrentFileName(currentFileName);
}
/**
* 清空文件列表
*/
public void clear()
{
m_filecounts = 0;
m_filelist.clear();
m_currentfileindex = 0;
m_currentfilename = null;
}
/**
* 得到文件路径列表
*/
public List<String> getfilepathList()
{
return this.m_filelist;
}
public void setCurrentFileName(String currentFileName)
{
this.m_currentfilename = currentFileName;
// 把当前文件设置为传入的内容
for (int i = 0; i < m_filelist.size(); i++)
{
if (m_filelist.get(i).equals(currentFileName))
{
m_currentfileindex = i;
break;
}
}
}
/**
* 获取下一张图片的文件路径
*
* @return 下一张图片的文件路径
*/
public String getNextBitmap()
{
if (m_filelist != null)
{
m_currentfileindex++; // 当前文件索引自增
m_currentfileindex = m_currentfileindex % m_filecounts;
m_currentfilename = m_filelist.get(m_currentfileindex);
}
return m_currentfilename;
}
/**
* 得到下一张图片的文件路径，而不改变当前文件索引序号
*/
public String getNextBitmapforBuf()
{
String string = null;
if (m_filelist != null)
{
int i = m_currentfileindex + 1;
i = i % m_filecounts;
string = m_filelist.get(i);
if (CSStaticData.DEBUG)
Log.e(TAG, "next index =" + i);
}
return string;
}
/**
* 获取上一张图片的文件路径
*
*/
public String getPreBitmap()
{
if (m_filelist != null)
{
m_currentfileindex--; // 当前文件索引自减
m_currentfileindex = (m_currentfileindex + m_filecounts)
% m_filecounts;
if (m_currentfileindex < 0)
{
m_currentfileindex = m_filecounts;
}
m_currentfilename = m_filelist.get(m_currentfileindex);
}
return m_currentfilename;
}
/**
* 得到上一张图片的文件路径，而不改变当前文件索引序号
*/
public String getPreBitmapforBuf()
{
String string = null;
if (m_filelist != null)
{
int i = m_currentfileindex - 1;
i = (i + m_filecounts) % m_filecounts;
if (i < 0)
{
i = m_filecounts;
}
if (CSStaticData.DEBUG)
Log.e(TAG, "pre index =" + i);
string = m_filelist.get(i);
}
return string;
}
/**
* 获取第一张图片的文件路径
*
*/
public String getFirBitmap()
{
if (m_filelist != null)
{
m_currentfilename = m_filelist.get(m_currentfileindex);
}
return m_currentfilename;
}
/**
* 获取当前图片的文件路径
*
*/
public String getCurrentFileName()
{
// return m_filelist.get(m_currentfileindex);
return m_currentfilename;
}
/**
* 获取当前图片的文件序号
*
*/
public int getCurrentFileIndex()
{
return m_currentfileindex;
}
/**
* 获取相应文件序号的文件名
*
*/
public String getFileName(int index)
{
return m_filelist.get(index);
}
/**
* 获取当前文件的大小
*
* @return 文件大小
*/
public long getCurFileSize()
{
return new File(getCurrentFileName()).length();
}
public long getCurFileTime()
{
return new File(getCurrentFileName()).lastModified();
}
/**
* 获取文件名
*
* @return
*/
public String getCurFileName()
{
return new File(getCurrentFileName()).getName();
}
/**
* 获取文件列表大小
*
* @return 文件数目
*/
public int getFileCounts()
{
return m_filecounts;
}
/**
* 返回文件类型
*/
private int getMediaType(int index)
{
int type = TYPE_UNKNOWN;
String str = null;
if (m_filelist != null && m_filelist.size() > m_currentfileindex)
{
str = m_filelist.get(index);
for (int i = 0; i < extensionMov.length; i++)
{
if (str.substring(str.length() - extensionMov[i].length())
.toLowerCase().equals(extensionMov[i]))
{
type = TYPE_MOVIE;
break;
}
}
for (int i = 0; i < extensionPic.length; i++)
{
if (str.substring(str.length() - extensionPic[i].length())
.toLowerCase().equals(extensionPic[i]))
{
type = TYPE_PICTURE;
break;
}
}
} else
{
type = TYPE_UNKNOWN;
}
return type;
}
/**
* 在文件列表中删除当前文件路径，如果不是最后一个则将下一文件路径作为当前路径
*/
public void deleteFile()
{
if (m_currentfileindex == -1)
{
return;
}
this.m_filelist.remove(m_currentfileindex);// 删除文件路径
this.m_filecounts = m_filelist.size();// 更新文件数目
if (m_filecounts != 0)
{
if (m_currentfileindex == m_filecounts)
{
m_currentfileindex--;
m_currentfileindex = (m_currentfileindex + m_filecounts)
% m_filecounts;
} else
{
m_currentfileindex = m_currentfileindex % m_filecounts;
}
this.m_currentfilename = m_filelist.get(m_currentfileindex);// 更新当前文件
} else
{
m_currentfilename = null;
m_currentfileindex = -1;
}
}
/**
* 在文件列表中删除当前文件路径，如果不是最后一个则将下一文件路径作为当前路径
*/
public void deleteFile(int index)
{
if (index == m_currentfileindex)
{
deleteFile();
} else
{
this.m_filelist.remove(index);// 删除文件路径
if (index < m_currentfileindex)
{
m_currentfileindex--;
m_currentfilename = m_filelist.get(m_currentfileindex);
}
this.m_filecounts = m_filelist.size();// 更新文件数目
}
}
public void deleteFileList(List<String> deletelist)
{
if (deletelist != null && deletelist.size() > 0)
{
for (int i = 0; i < deletelist.size(); i++)
{
String temp = deletelist.get(i);
int a = m_filelist.size();
for (int j = 0; j < a; j++)
{
if (temp.equals(m_filelist.get(j)))
{
deleteFile(j);
break;
}
}
}
}
}
public void addFile(String filepath)
{
m_filelist.add(m_currentfileindex + 1, filepath);
m_filecounts++;
}
}