public void CellsTest()
{
int index = 0; // TODO: Initialize to an appropriate value
Column target = new Column(index); // TODO: Initialize to an appropriate value
Cell[] expected = new Cell[9];
Cell[] actual;
actual = target.Cells;
CollectionAssert.AreEqual(expected, actual);
}
/// <summary>
/// Check wether the given cell is the only place for
/// the given digit in the house.
/// </summary>
/// <param name="cell">Cell.</param>
/// <param name="digit">Digit.</param>
/// <returns>True, if the cell is the only place for
/// the given digit in the house, false otherwise.</returns>
public bool HasOnlyOnePlaceFor(Cell cell, int digit)
{
foreach (Cell c in this.GetCells())
{
if (c != null && !c.Equals(cell))
{
if (c.Digit.HasValue && c.Digit.Value == digit)
return false;
else if (c.HasACandidateFor(digit))
return false;
}
}
return true;
}
public CellControl(Cell cell)
{
this.Cell = cell;
this.AutoSize = true;
this.BackColor = System.Drawing.SystemColors.Control;
this.BorderStyle = System.Windows.Forms.BorderStyle.None;
this.Cursor = System.Windows.Forms.Cursors.Default;
this.Dock = System.Windows.Forms.DockStyle.Fill;
this.Font = new System.Drawing.Font("Trebuchet MS", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.ForeColor = System.Drawing.SystemColors.ControlText;
this.Margin = new System.Windows.Forms.Padding(0);
this.ReadOnly = true;
this.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.Enter += new EventHandler(CellControl_Enter);
this.Leave += new EventHandler(CellControl_Leave);
this.Name = cell.ToString();
this.TabIndex = ((cell.Row.Index - 1) * 9) + cell.Column.Index;
}
private void InitGrid()
{
// Boxes :
this._Boxes = new Box[3, 3];
for (int row = 0; row < 3; row++)
for (int col = 0; col < 3; col++)
this._Boxes[row, col] = new Box(row, col);
// Columns :
this._Columns = new Column[9];
for (int col = 0; col < 9; col++)
this._Columns[col] = new Column(col);
// Rows :
this._Rows = new Row[9];
for (int row = 0; row < 9; row++)
this._Rows[row] = new Row(row);
// Cells :
int boxCol = 0;
int boxRow = 0;
this._Cells = new Cell[9, 9];
for (int row = 0; row < 9; row++)
{
for (int col = 0; col < 9; col++)
{
Cell cell = new Cell();
cell.Grid = this;
cell.Box = this._Boxes[this.BoxIndex(row), this.BoxIndex(col)];
cell.Column = this._Columns[col];
cell.Row = this._Rows[row];
cell.Grid.Cells[row, col] = cell;
cell.Box.Cells[boxRow, boxCol] = cell;
cell.Column.Cells[cell.Row.Index] = cell;
cell.Row.Cells[cell.Column.Index] = cell;
boxCol = (boxCol < 2) ? boxCol + 1 : 0;
}
boxRow = (boxRow < 2) ? boxRow + 1 : 0;
}
}
