private void TryCompare()
{
if (file1 == null || file2 == null)
{
return;
}
listview_Main.Items.Clear();
List <ListViewItem> results = new List <ListViewItem>();
Dictionary <String, FileData> allFiles = new Dictionary <string, FileData>();
foreach (KeyValuePair <String, FileData> entry in file1.Files)
{
allFiles.Add(entry.Key, entry.Value);
}
foreach (KeyValuePair <String, FileData> entry in file2.Files)
{
if (!allFiles.ContainsKey(entry.Key))
{
allFiles.Add(entry.Key, entry.Value);
}
}
foreach (KeyValuePair <String, FileData> entry in allFiles)
{
String[] filenameParts = entry.Value.filename.Split(Path.DirectorySeparatorChar);
ListViewItem item = new ListViewItem(entry.Key);
item.SubItems.Add(String.Format(new FileSizeFormatProvider(), "{0:fs}", entry.Value.size));
item.SubItems.Add(entry.Key.Substring((entry.Key.Length - 3)));
item.SubItems.Add(filenameParts[filenameParts.Length - 1]);
item.SubItems[1].Tag = entry.Value.size;
if (!file2.Files.ContainsKey(entry.Key)) //if new file does not contain the entry
// removed file
{
item.ImageKey = "removed";
if (checkbox_Removed.Checked)
{
results.Add(item);
}
continue;
}
if (!file1.Files.ContainsKey(entry.Key)) // if old file does not contain the entry
// added file
{
item.ImageKey = "added";
if (checkbox_Added.Checked)
{
results.Add(item);
}
continue;
}
byte[] fileData1 = file1.GetFile(entry.Key);
byte[] fileData2 = file2.GetFile(entry.Key);
bool sameFile = (fileData1.Length == fileData2.Length);
if (sameFile)
{
for (int i = 0; i < fileData1.Length; i++)
{
sameFile = (fileData1[i] == fileData2[i]);
if (!sameFile)
{
break;
}
}
}
if (!file1.Files[entry.Key].Equals(file2.Files[entry.Key]) || !sameFile)
{
// changed file
item.ImageKey = "changed";
if (checkbox_Changed.Checked)
{
results.Add(item);
}
continue;
}
// unchanged file
item.ImageKey = "same";
if (checkbox_Unchanged.Checked)
{
results.Add(item);
}
}
if (results.Count > 0)
{
listview_Main.Items.AddRange(results.ToArray());
}
}