private void tag_ValueChanging(FileTag sender, FileTagEventArgs e)
{
FileTag newTag = new FileTag(e.NewValue);
// Don't allow the tag to be change into a value that already exists
if (this.tags.Exists(newTag.Compare))
{
e.Cancel = true;
throw new InvalidOperationException(string.Format(
"Can't change tag value from '{1}' to '{0}' because the tag '{0}' already exists in the file's tags list",
e.NewValue, e.OldValue));
}
// Raise event (removeTag and addTag)
if (this.TagRemoved != null)
{
FileWithTagsEventArgs e2 = new FileWithTagsEventArgs(sender);
this.TagRemoved(this, e2);
}
if (this.TagAdded != null)
{
FileWithTagsEventArgs e2 = new FileWithTagsEventArgs(newTag);
this.TagAdded(this, e2);
}
}
private void menuManyTags_RevesreChoice_Click(object sender, EventArgs e)
{
foreach (ListViewItem item in this.listViewTags.SelectedItems)
{
FileTag tag = (FileTag)item.Tag;
FileTag newTag = new FileTag(tag.Value);
newTag.Inverse = true;
this.tagsCombination.Add(newTag);
}
this.showCurrentDatabse();
}
/// <summary>
/// Compares the "tag" param with this current instance of the FileTag object.
/// The criteria is that both FileTag value member is equal.
/// </summary>
/// <param name="tag">The FileTag instance to compare to</param>
/// <returns>true if both FileTag value member is equal, false otherwise</returns>
public bool Compare(FileTag tag)
{
// The return value
bool ret;
// If the input param was null then the return value should be false, i.e, not equal
if (tag == null)
ret = false;
else // Compare the values of the two FileTag instances
ret = (this.value == tag.value);
return ret;
}
public FileWithTagsEventArgs(FileTag tag)
{
this.tag = tag;
}
/// <summary>
///
/// </summary>
/// <param name="tag"></param>
/// <returns></returns>
public int CountFilesByTag(FileTag tag)
{
int i = this.Tags.FindIndex(tag.Compare);
if (i >= 0)
return this.counters[i];
else
return 0;
}
/// <summary>
///
/// </summary>
/// <param name="tag"></param>
/// <param name="groupName"></param>
public void MapTagToGroup(string tagValue, string groupName)
{
FileTag newTag = new FileTag(tagValue);
int tagIndex = this.tags.FindIndex(newTag.Compare);
if (tagIndex >= 0) // Tag found
{
int groupIndex = this.groupsNames.IndexOf(groupName);
if (groupIndex >= 0)
this.tagGroupMapping[tagIndex] = groupIndex;
//else
//throw new ArgumentException(string.Format("Group {0} does not exists", groupName));
}
//else
//throw new ArgumentException(string.Format("Tag {0} does not exists", tagValue));
}
/// <summary>
///
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public static TagFilesDatabase DeSerialize(string fileName)
{
TagFilesDatabase ret = new TagFilesDatabase();
if (File.Exists(fileName))
{
string line = "";
FileStream fileStream = new FileStream(fileName, FileMode.Open);
StreamReader reader = new StreamReader(fileStream);
while (!reader.EndOfStream)
{
line = reader.ReadLine();
// Read the files
if (line == fileBeginString)
{
// Read the file name
FileWithTags file = new FileWithTags();
file.FileName = reader.ReadLine();
// Read the tags
line = reader.ReadLine();
while (line != fileEndString)
{
FileTag tag = new FileTag();
tag.Value = line;
file.Tags.Add(tag);
line = reader.ReadLine();
}
ret.Files.Add(file);
}
// Read the groups
else if (line == groupsBeginString)
{
line = reader.ReadLine();
while (line != groupsEndString)
{
string name = line;
string key = reader.ReadLine();
ret.CreateGroup(name, key);
line = reader.ReadLine();
}
}
// Read the mapping between tags and groups
else if (line == mappingBeginString)
{
line = reader.ReadLine();
int index = 0;
while (line != mappingEndString)
{
// read the tag line
FileTag tag = new FileTag(line);
// read the group index line
int groupIndex = int.Parse(reader.ReadLine());
// find the tag in the list
index = ret.tags.FindIndex(tag.Compare);
if (index >= 0)
{
ret.tagGroupMapping[index] = groupIndex;
}
line = reader.ReadLine();
}
}
}
reader.Dispose();
fileStream.Close();
}
return ret;
}
public TagFilesDatabase GetReversePartialDatabase(FileTag matchTag)
{
TagFilesDatabase ret = new TagFilesDatabase();
List<FileTag> list = new List<FileTag>();
list.Add(matchTag);
ret = this.GetReversePartialDatabase(list);
return ret;
}
public TagFilesDatabaseEventArgs(FileWithTags file, FileTag tag)
{
this.file = file;
this.tag = tag;
}
private void raiseEvent(DatabaseAction action, FileWithTags file, FileTag tag)
{
TagFilesDatabaseEventArgs e = new TagFilesDatabaseEventArgs(file, tag);
if (action == DatabaseAction.AddingTag)
{
if (this.TagAdded != null)
this.TagAdded(this, e);
}
else if (action == DatabaseAction.RemovingTag)
{
if (this.TagRemoved != null)
this.TagRemoved(this, e);
}
else if (action == DatabaseAction.RemovingFile)
{
if (this.FileRemoved != null)
this.FileRemoved(this, e);
}
else if (action == DatabaseAction.AddingFile)
{
if (this.FileAdded != null)
this.FileAdded(this, e);
}
}
private void removeTag(string tagValue)
{
FileTag tag = new FileTag(tagValue);
int i = this.tags.FindIndex(tag.Compare);
if (i >= 0) // Found
{
this.counters[i]--;
if (this.counters[i] <= 0)
{
this.counters.RemoveAt(i);
this.tagGroupMapping.RemoveAt(i);
this.tags.RemoveAt(i);
}
}
}
private void addTag(string tagValue)
{
FileTag newTag = new FileTag(tagValue);
int i = this.tags.FindIndex(newTag.Compare);
if (i >= 0)
{
this.counters[i]++;
}
else
{
this.counters.Add(1);
this.tagGroupMapping.Add(0);
this.tags.Add(newTag);
}
}
// Handles ValueChanging event for any tag in any file
private void tag_ValueChanging(FileTag sender, FileTagEventArgs e)
{
if (this.currentAction == DatabaseAction.Idle)
throw new InvalidOperationException("This object is read-only");
}
