public void AttemptWriteChar(char c)
{
int row = Cursor.Row;
int column = Cursor.Column;
BrailleCharacter newChar = GetBrailleCharacter(c);
if (newChar != null)
{
int symbolCount = Symbols[row].Count;
//Primary check if room available
if (symbolCount < CHARACTER_COLUMNS)
{
//Find current character index or select last one
List <BrailleCharacter> characters = Characters[row];
if (characters.Count == 0)
{
characters.Add(newChar);
RecalculateSymbolSlots(row);
AttemptCursorPositionOffset(0, newChar.GetSymbols(BlankCharacter, BlankCharacter, BlankCharacter).Count);
DataChanged();
return;
}
else
{
BrailleSymbolSlotPosition previous = GetSymbolSlotPositionBefore();
//Calculate new list of symbol slot position and check if it fits
List <BrailleCharacter> newCharacters = characters.ToList();
int index = previous != null ? previous.i + 1 : 0;
newCharacters.Insert(index, newChar);
int newSymbolsCount = GetNewSymbolSlots(newCharacters).Count;
if (newSymbolsCount <= CHARACTER_COLUMNS)
{
Characters[row] = newCharacters;
RecalculateSymbolSlots(row);
AttemptCursorPositionChange(row, GetLastSymbolFromCharacterColumn(index, row));
DataChanged();
return;
}
}
}
}
}
private void CharacterList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
char character = ((char)((ListViewItem)CharacterList.SelectedItem).Content);
this.Character.Text = character.ToString();
BrailleCharacter braille = GetBrailleCharacter(character);
List <BrailleSymbolSlot> slots = braille.GetSymbols(BlankCharacter, BlankCharacter, BlankCharacter);
if (slots.Count == 1)
{
this.firstSymbol.UpdateDots(slots[0].GetSymbol().Points);
this.secondSymbol.DotCanvas.Visibility = Visibility.Collapsed;
}
if (slots.Count == 2)
{
this.firstSymbol.UpdateDots(slots[0].GetSymbol().Points);
this.secondSymbol.DotCanvas.Visibility = Visibility.Visible;
this.secondSymbol.UpdateDots(slots[1].GetSymbol().Points);
}
}