private int addedTags = 0; // Counter to know when to unregister listener
#endregion
#region Startup and Shutdown
/// <summary>
/// Set defaults and bind grid
/// </summary>
/// <param name="mp3File">mp3file is used only for tags</param>
public Mp3FileDialogue(Mp3File mp3File)
{
InitializeComponent();
this.mp3File = mp3File;
Text = Path.GetFileName(mp3File.AbsolutePath);
exposedTags = ExposedTagsConfiguration.ExposedTagsConfigurationInstance.ExposedTags;
tags = new BindingList <TagProcessing>(mp3File.DirtyTags);
TagsGrid.AutoGenerateColumns = false;
TagsGrid.DataSource = tags;
}
/// <summary>
/// Initialization called only once by the exposedTagsConfigurationInstance
/// </summary>
private ExposedTagsConfiguration( ) :
base("ExposedTagsFilePath", "ExposedTagsFileName", "ExposedTags.xml", out Program.obj, typeof(ExposedTags))
{
exposedTags = Program.obj as ExposedTags;
if (exposedTags == null)
{
exposedTags = new ExposedTags();
exposedTags.CreateDefault();
}
}
/// <summary>
/// Lookup for preexisting value if present
/// </summary>
private void TagsGrid_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
var tagNameValue = TagsGrid.Rows[e.RowIndex].Cells[e.ColumnIndex].Value;
if (tagNameValue != null && !string.IsNullOrEmpty(tagNameValue.ToString()))
{
string tmp;
mp3File.TryReadValue(tagNameValue.ToString(), ExposedTags.IsPrivateOrUserFrame(tagNameValue.ToString()), out tmp);
TagsGrid.Rows[e.RowIndex].Cells["TagValueOld"].Value = tmp;
TagsGrid.Rows[e.RowIndex].Cells[e.ColumnIndex].ReadOnly = true;
addedTags--;
if (addedTags == 0)
{
TagsGrid.CellEndEdit -= TagsGrid_CellEndEdit;
}
}
}
/// <summary>
/// Changes will persist to disk after serialization, for now change singleton
/// </summary>
private void SaveCurrentAsDefaultsButton_Click(object sender, EventArgs e)
{
exposedTags.Tags.Clear();
foreach (var tag in tags)
{
var name = tag.tagName;
if (ExposedTags.IsPrivateOrUserFrame(name))
{
exposedTags.Tags.Add(new ExposedTags.Tag(name, true));
}
else
{
exposedTags.Tags.Add(new ExposedTags.Tag(name));
}
}
}
/// <summary>
/// Figure out what kind of frame it is, then try to write to it
/// </summary>
/// <param name="name">Name of frame</param>
/// <param name="privateOrUserFrame">How to look for the frame</param>
/// <param name="value">Value to write</param>
/// <returns>True on success, false on failure</returns>
private bool TryWriteValue(string name, string value)
{
if (!ExposedTags.IsPrivateOrUserFrame(name))
{
return(TryWritePropertyValue(name, value));
}
else
{
string garbage;
if (TryReadUserFrame(name, out garbage))
{
return(TryWriteUserFrame(name, value));
}
else
{
return(TryWritePrivateFrame(name, value));
}
}
}