* Copyright: Copyright (c) 2003 by HEKAI
* @Version: 1.0
* Modify History
* Author Date Description
* hekai 2003-11-18 Create the readpic.java
*****************************************************************/
//請用你的相應包名進行替換
package bmptest;
import java.io.*;
public class readpic
{
public static void main(String[] args)
{
PicsModel model = getFileAttributes("E:/hekai/hk0001.jpg");
// "E:\\hekai\\hk0001.jpg" 也是可以的
System.out.println("picextendname is:"+model.getpicsExtendName());
System.out.println("picwidth is:"+model.getpicsWidth());
System.out.println("picheight is:"+model.getpicsHeight());
System.out.println("piccolor:"+model.getpicsColor());
System.out.println("picsize:"+model.getpicsSize());
}
private static PicsModel getFileAttributes(String picpath)
{
PicsModel model = null;
String picextendname;
picextendname = null;
byte[] content = null;
try
{
content = readFromFile(picpath);
int k;
k = content.length;
//不想處理的話，請直接獲取其字節數
Integer kk;
kk = null;
String picsize;
picsize = null;
if (k >= 1024)
{
//bigger than fact pic file sizes
k = k / 1024 + 1;
kk = new Integer(k);
picsize = kk.toString() + "K";
}
else if (k > 0)
{
kk = new Integer(k);
picsize = kk.toString();
}
model = new PicsModel();
model.setpicsSize(picsize);
}
catch( IOException e )
{
content = new byte[0];
e.printStackTrace();
}
picextendname = getFileExtendName(content);
int picwidth,picheight,color;
String piccolor;
picwidth = 0;
picheight = 0;
color = 0;
piccolor = null;
if (picextendname.equals("GIF"))
{
//picwidth position
picwidth = getFileAttribute(content,7,2,picextendname);
//picheight position
picheight = getFileAttribute(content,9,2,picextendname);
//piccolor position
color = getFileAttribute(content,10,1,picextendname);
color = color % 8 + 1;
piccolor = getPicColor(color);
}
if (picextendname.equals("JPG"))
{
//考慮了兩種情況
picwidth = getFileAttribute(content,166,2,picextendname);
picheight = getFileAttribute(content,164,2,picextendname);
color = getFileAttribute(content,167,1,picextendname);
color = color * 8;
if ((picwidth == 0 )||(picheight == 0)||(Color > 3))
{
picwidth = getFileAttribute(content,197,2,picextendname);
picheight = getFileAttribute(content,195,2,picextendname);
color = getFileAttribute(content,198,1,picextendname);
color = color * 8;
}
piccolor = getPicColor(color);
}
if (picextendname.equals("BMP"))
{
picwidth = getFileAttribute(content,19,2,picextendname);
picheight = getFileAttribute(content,23,2,picextendname);
color = getFileAttribute(content,28,1,picextendname);
piccolor = getPicColor(color);
}
if (picextendname.equals("PNG"))
{
picwidth = getFileAttribute(content,19,2,picextendname);
picheight = getFileAttribute(content,23,2,picextendname);
// usually is "16M"??
piccolor = "16M";
}
model.setpicsExtendName(picextendname);
model.setpicsWidth(picwidth);
model.setpicsHeight(picheight);
model.setpicsColor(piccolor);