internal void drawPossibleConstraints(PaintEventArgs e)
{
foreach (List <Variable> list in dragConstraints)
{
CellTools.drawPossibleConstraint(e, list, lastConstraint.getColor());
}
}
internal void drawConstraintsInCell(DataGridViewCellPaintingEventArgs e, CPInstance i)
{
foreach (Constraint c in involvedInConstraint)
{
CellTools.drawConstraint(this, c, e, i);
}
}
internal static void drawConstraint(Variable variable, Constraint c, DataGridViewCellPaintingEventArgs e, CPInstance i)
{
Pen p = new Pen(Color.FromArgb(Math.Max(0, 255 - c.duplication_distance * 10), c.getColor()));
if (c.duplication_distance == 0)
{
p.Width = 4f;
}
else
{
p.Width = 1.5f + 1.0f / c.duplication_distance;
}
Variable[] n = i.getNeighbours(variable, c);
for (int k = 0; k < 4; k++)
{
if (n[k] == null)// && n[(k + 4 - 1) % 4] != null && n[(k + 4 + 1) % 4] != null)
{
CellTools.drawStraight(e, k, p);
}
}
}
private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (e.ColumnIndex < 0 || e.RowIndex < 0)
{
return;
}
DataGridViewCell currentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
if (instance.getVar(currentCell) == null)
{
// empty cell
//e.Handled = false; <- let event be handled by default handler. (done implicit)
return;
}
else
{
Variable currentVar = instance.getVar(currentCell);
if (rectDrag)
{
dataGridView1.ClearSelection();
}
// Erase the cell.
e.Graphics.FillRectangle(new SolidBrush(currentVar.getColor()), e.CellBounds);
if (dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Selected)
{
e.Graphics.FillRectangle(Brushes.DarkKhaki, e.CellBounds);
}
CellTools.drawGrid(e, gridColor);
if (drawConstraints)
{
currentVar.drawConstraintsInCell(e, instance);
}
e.Graphics.DrawString(currentVar.getFormattedText(), e.CellStyle.Font,
Brushes.Black, e.CellBounds.X + 2,
e.CellBounds.Y + 2, StringFormat.GenericDefault);
currentVar.fixedVal = currentVar.fixedVal.Trim();
if (currentVar.fixedVal != "")
{
if (instance.solved)
{
e.Graphics.DrawString(currentVar.solvedValue, e.CellStyle.Font,
Brushes.Crimson, e.CellBounds.X + 2,
e.CellBounds.Y + 20, StringFormat.GenericDefault);
}
else
{
e.Graphics.DrawString(currentVar.fixedVal, e.CellStyle.Font,
Brushes.Crimson, e.CellBounds.X + 2,
e.CellBounds.Y + 20, StringFormat.GenericDefault);
}
}
else
{
if (instance.solved)
{
e.Graphics.DrawString(currentVar.solvedValue, e.CellStyle.Font,
Brushes.Black, e.CellBounds.X + 2,
e.CellBounds.Y + 20, StringFormat.GenericDefault);
}
if (!instance.solved)
{
e.Graphics.DrawString(currentVar.solvedValue, e.CellStyle.Font,
Brushes.LightGray, e.CellBounds.X + 2,
e.CellBounds.Y + 20, StringFormat.GenericDefault);
}
}
e.Handled = true;
}
}
