private void btnCompress_Click(object sender, EventArgs e)
{
try
{
ImageFile imageFile = new ImageFile();
string destFile = string.Empty;
string[] fileList = { };
int counter = 0;
long quality = GetCompressQuality();
int width, height;
Int32.TryParse(txtWidth.Text, out width);
Int32.TryParse(txtHeight.Text, out height);
if (Directory.Exists(txtCompressSource.Text))
{
fileList = Directory.GetFiles(txtCompressSource.Text);
}
for (int i = 0; i < fileList.Length; i++)
{
if (fileList[i].ToLower().Contains(".jpg") || fileList[i].ToLower().Contains(".png"))
{
destFile = fileList[i].Replace(txtCompressSource.Text, txtCompressDest.Text);
imageFile.CompressImage(fileList[i], destFile, width, height, quality);
counter++;
}
}
MessageBox.Show(string.Format("处理成功，共{0}张！", counter), "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception ex)
{
MessageBox.Show("压缩失败！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtMessage.Text = ex.Message;
}
}
public void TestImage()
{
string strSrc = @"E:\Test\Files\1.JPG";
string strDest = @"E:\Test\Files\3.JPG";
ImageFile imgFile = new ImageFile();
imgFile.CompressImage(strSrc, strDest, 720, 480);
}
/// <summary>
/// 压缩图片，分辨率取用户选择的，质量为100L
/// </summary>
/// <param name="source"></param>
/// <param name="dest"></param>
private void CompressImage(string source, string dest)
{
int[] resolution = GetResolution();
long quality = 100L; //图片的质量
//必须每次都生成ImageFile对象，否则同一对象调用CompressImage次数太多会造成内存不足
ImageFile imgFile = new ImageFile();
imgFile.CompressImage(source, dest, resolution[0], resolution[1], quality);
}