/// <summary>
/// Read all the labels from a .MD file, if the file does not exist, then create one
/// </summary>
/// <param name="url">the url of the .MD file</param>
/// <param name="data_length">the number of all frames</param>
/// <returns></returns>
public int[,] GetLabels(string url, int data_length)
{
int[,] LabelsList = new int[data_length, 2];
// If Label List does not exist, create one
if (!File.Exists(url))
{
// Create a list with the same length
for (int i = 0; i < data_length; i++)
{
//string itemStr = string.Format("{0}:{1}", i.ToString("00000"), "-1");
LabelsList[i, 0] = i + 1;
LabelsList[i, 1] = -1;
}
m_fileHandle.WriteLabelsMD(url, LabelsList);
}
else
{
// If Label List exists, read it
string[] labels_string = File.ReadAllLines(url);
for (int i = 0; i < labels_string.Length; i++)
{
string[] line = labels_string[i].Split(':');
int index = Convert.ToInt32(line[0]);
int label = Convert.ToInt32(line[1]);
LabelsList[i, 0] = index;
LabelsList[i, 1] = label; //string itemStr = string.Format("{0}:{1}", index, "-1");
}
}
return(LabelsList);
}
/// <summary>
/// After label, this function help to update Listbox and global label list
/// And save the label list to a .md file
/// </summary>
/// <param name="labels_list">global label list</param>
/// <param name="url">url of the .md file to save the labels</param>
/// <param name="listBox"></param>
/// <param name="labelindex">[-1,0,1,2,3,4] -1 means ignored</param>
/// <param name="fileHandle"></param>
public void UpdateLabel(ref int[,] labels_list, string url, ref ListBox listBox, int labelindex, FileHandle fileHandle)
{
// add image string: ..\..\..\DataFloder\ImagesFolder\ImageName
string[] imgPaths = fileHandle.ImgaeFolder.Split(Path.DirectorySeparatorChar);
foreach (int selectedIndex in listBox.SelectedIndices)
{
// Modify the listBox
string line = listBox.Items[selectedIndex].ToString();
string[] line_arr = line.Split(' ');
if (string.IsNullOrWhiteSpace(line_arr[3]))
{
continue;
}
string line_new = line.Substring(0, line.Length - 1) + (labelindex == -1 ? " " : labelindex.ToString());
listBox.Items[selectedIndex] = line_new;
listBox.SetSelected(selectedIndex, true);
// Modify the labels list
labels_list[selectedIndex, 1] = labelindex;
}
// Write
fileHandle.WriteLabelsMD(url, labels_list);
}
