/// <summary>
/// Initializes a controller for the given window.
/// This is the controlling component in the MVC framework.
/// </summary>
/// <param name="window"></param>
public Controller(ISpreadsheetView window, ISpreadsheetServer server, String SpreadsheetName)
{
_window = window;
_server = server;
_spreadsheetName = SpreadsheetName;
SelectedCell = new GuiCell(0, 0);
Spreadsheet = new Spreadsheet();
_random = new Random();
Clients = new Dictionary <string, Client>();
// Event Subscriptions
_window.CellValueBoxTextComplete += CellValueBarChanged;
_window.CellSelectionChange += SpreadsheetSelectionChanged;
_window.CreateNew += CreateNew;
_window.HandleOpen += () => HandleOpen(null);
_window.HandleSave += () => HandleSave(_savePath);
_window.HandleSaveAs += () => HandleSave(null);
_window.HandleClose += HandleClose;
_window.HandleHelp += WindowOnHandleHelp;
_window.HandleUndo += Undo;
//Setup defaults
_window.SetSelection(SelectedCell.CellColumn, SelectedCell.CellRow);
UpdateInfoBar($"{SelectedCell.CellName}: { SelectedCell.GetCellValue(Spreadsheet)}", Color.White);
UpdateCellNameText();
_window.SetTitle(_spreadsheetName);
}
/// <summary>
/// Every time the selection changes, this method is called with the
/// Spreadsheet as its parameter.
/// </summary>
private void SpreadsheetSelectionChanged(int col, int row)
{
DoneTyping();
SelectedCell = new GuiCell(col, row);
_window.CellValueBoxText = SelectedCell.GetCellContents(Spreadsheet);
UpdateInfoBar($"{SelectedCell.CellName}: { SelectedCell.GetCellValue(Spreadsheet)}", Color.White);
UpdateCellNameText();
IsTyping();
}
/// <summary>
/// Iterates through the given Hashset and updates the cells in the view.
/// </summary>
/// <param name="cellNames"></param>
private void UpdateCells(IEnumerable <string> cellNames)
{
foreach (var cellName in cellNames)
{
GuiCell cell = new GuiCell(cellName);
_window.UpdateCell(cell.CellColumn, cell.CellRow, cell.GetCellValue(Spreadsheet));
if (SelectedCell.CellName == cell.CellName)
{
_window.CellValueBoxText = SelectedCell.GetCellContents(Spreadsheet);
}
}
}
/// <summary>
/// Sets the selected cell contents to the new value from the data bar. If an exception occurs the info bar will
/// display an error message.
/// </summary>
private void CellValueBarChanged(string value)
{
//Set the info bar to be empty.
_window.InfoBarText = string.Empty;
try
{
SendCell(SelectedCell.CellName, value);
UpdateInfoBar($"{SelectedCell.CellName}: { SelectedCell.GetCellValue(Spreadsheet)}", Color.White);
_window.SetTitle(_spreadsheetName + "*");
}
catch (Exception e)
{
UpdateInfoBar(e.Message, Color.Red);
}
}
