/// <summary>
/// converts the image by class attributes
/// </summary>
/// <param name="imageConvertor">attributes in class are taken to the function</param>
public static void ConvertImage(ImageConvertor imageConvertor)
{
ConvertImage(imageConvertor._filePath, imageConvertor._savePath, imageConvertor._imageFormat);
}
private void CovertButton_Click(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(textBox1.Text))
{
MessageBox.Show("Choose Folder Path", "Error");
return;
}
if (!Directory.Exists(this.textBox1.Text))
{
MessageBox.Show("Incorrect Folder Path", "Error");
return;
}
string sourceFolderPath = textBox1.Text;
string convertedFolderPath = sourceFolderPath + "\\converted";
string[] sourceFiles = Directory.GetFiles(sourceFolderPath);
if (SaveRadioConvertedFolder.Checked)
{
Directory.CreateDirectory(convertedFolderPath);
}
statusLabel.Visible = true;
progressBar.Visible = true;
progressBar.Maximum = sourceFiles.Length;
progressBar.Value = 0;
ConvertPanel.Enabled = false;
string toFormatName = (string)ToFormatComboBox.SelectedItem;
ImageFormat toFormat = ImageConvertor.GetImageFormatByString(toFormatName);
string fromExtension = FromExtensionComboBox.SelectedItem.ToString().ToLower();
LinkedList <Thread> threadList = new LinkedList <Thread>();
DateTime lastIntervalTime = DateTime.Now;
statusLabel.Text = "Converting";
int count = 0;
int convertedCount = 0;
for (int index = 0; index < sourceFiles.Length; index++)
{
string sourceFilePath = sourceFiles[index];
string resultFilePath;
// Form status and progressBar update
void FormUpdate()
{
progressBar.Value = index;
if (DateTime.Now.Subtract(lastIntervalTime).Milliseconds > STATUS_UPDATE_INTERVAL)
{
statusLabel.Text = "Converting" + String.Concat(Enumerable.Repeat(".", (++count % 5)));
lastIntervalTime = DateTime.Now;
}
Application.DoEvents();
}
FormUpdate();
// continue if the source file extension is not the one I'm looking for (.jpg != .bmp)
if (!Path.GetExtension(sourceFilePath).ToLower().Equals("." + fromExtension))
{
continue;
}
convertedCount++;
resultFilePath = SaveRadioConvertedFolder.Checked ? convertedFolderPath : sourceFolderPath;
resultFilePath += "\\" + Path.GetFileNameWithoutExtension(sourceFilePath) + "." + toFormatName.ToLower();
ImageConvertor imageConvertor = new ImageConvertor(sourceFilePath, resultFilePath, toFormat);
// using sequential io = 430 bmp size 5.93MB to jpg, 42 secs on SSD , 242 secs on HDD
// using multi-threaded io = 430 bmp size 5.93MB to jpg, 14 secs on SSD , 122 secs on HDD
threadList.AddLast(new Thread(new ThreadStart(imageConvertor.ConvertImage)));
threadList.Last.Value.Start();
while (threadList.Count >= THREAD_QUEUE) // Thread Queue, the longest operation is IO so IO Queue
{
Thread.Sleep(THREAD_QUEUE_SLEEP);
FormUpdate();
RemoveNonLivingThreads(threadList);
}
}
foreach (Thread th in threadList)
{
th.Join(); // wait for the last threads to finish
}
MessageBox.Show("Converted " + convertedCount + " Files", "Conversion Finished");
statusLabel.Visible = false;
progressBar.Visible = false;
ConvertPanel.Enabled = true;
}