// plays back a command in the UI creating new commands
private void RedoCommand(INoteViewModel note, Control sender, INoteCommand command)
{
if (command is CreateNoteCommand)
{
var createCommand = command as CreateNoteCommand;
var text = createCommand.Text;
vm.CreateNote(text);
//UpdateUI(note, sender, text);
}
else if (command is DeleteTextFromNoteCommand)
{
var deleteTextCommand = command as DeleteTextFromNoteCommand;
note.RemoveText(deleteTextCommand.Offset, deleteTextCommand.Text.Length, true);
//UpdateUI(note, sender, text);
}
else if (command is InsertTextIntoNoteCommand)
{
var insertTextCommand = command as InsertTextIntoNoteCommand;
vm.InsertText(note, insertTextCommand.Offset, insertTextCommand.Text, true);
//UpdateUI(note, sender, note.Text);
}
else if (command is DeleteNoteCommand)
{
vm.DeleteNote(command.NoteGuid);
//UpdateUI(note, sender, note.Text);
}
}
// plays back the command history of a note visually
private void PlayCommand(INoteViewModel note, Control sender, INoteCommand command, int delayCount)
{
Task.Delay(delayCount).Wait();
Debug.WriteLine(command.ToString());
if (command is CreateNoteCommand)
{
var createCommand = command as CreateNoteCommand;
var text = createCommand.Text;
UpdateUI(note, sender, text);
//note.Text = createCommand.Text;
}
else if (command is DeleteTextFromNoteCommand)
{
var deleteTextCommand = command as DeleteTextFromNoteCommand;
var text = note.Text;
text = text.Remove(deleteTextCommand.Offset, deleteTextCommand.Text.Length);
UpdateUI(note, sender, text);
}
else if (command is InsertTextIntoNoteCommand)
{
var insertTextCommand = command as InsertTextIntoNoteCommand;
var text = note.Text;
if (insertTextCommand.Offset == note.Text.Length)
{
text += insertTextCommand.Text;
UpdateUI(note, sender, text);
}
else
{
text = text.Insert(insertTextCommand.Offset, insertTextCommand.Text);
UpdateUI(note, sender, text);
}
}
}
private void ReplayCommand(INoteCommand command)
{
if (command is CreateNoteCommand)
{
var createNoteCmd = command as CreateNoteCommand;
var note = CreateNote(createNoteCmd.Text, createNoteCmd.NoteGuid) as NoteViewModel;
note.PropertyChanged += Note_PropertyChanged;
}
else
{
var note = DisplayNotes.Single(w => w.Guid == command.NoteGuid);
var text = note.Text;
if (command is InsertTextIntoNoteCommand)
{
var insertTextCmd = command as InsertTextIntoNoteCommand;
InsertText(note, insertTextCmd.Offset, insertTextCmd.Text, true);
}
else if (command is DeleteTextFromNoteCommand)
{
var deleteTextCmd = command as DeleteTextFromNoteCommand;
RemoveText(note, deleteTextCmd.Offset, deleteTextCmd.Text, true);
}
}
}
private void AddCommand(INoteCommand noteCommand, INoteViewModel note)
{
AllCommands.Insert(0, noteCommand);
DisplayCommands.Insert(0, noteCommand);
note.Commands.Insert(0, noteCommand);
}
