/// <summary>
/// get a square on the board gioven the widht and height
/// </summary>
/// <param name="width">horizontal position of the square on the board</param>
/// <param name="height">vertical position of the square on the board</param>
/// <returns></returns>
public BasicSquare GetSquareAt(int width, int height)
{
foreach (DictionaryEntry dicEnt in hashSquares)
{
BasicSquare square = ( BasicSquare )dicEnt.Value;
if (this.ShowLegend == false)
{
if (square.SquareHorizontalLocation <= width &&
(square.SquareHorizontalLocation + square.SquareWidth) >= width &&
square.SquareVerticalLocation <= height &&
(square.SquareVerticalLocation + square.SquareHeight) >= height)
{
return(square);
}
}
else
{
if ((square.SquareHorizontalLocation + this.LegendWidth) <= width &&
(square.SquareHorizontalLocation + LegendWidth + square.SquareWidth) >= width &&
(square.SquareVerticalLocation + LegendWidth) <= height &&
(square.SquareVerticalLocation + LegendWidth + square.SquareHeight) >= height)
{
return(square);
}
}
}
return(null);
}
/// <summary>
/// invalidate a given square
/// </summary>
/// <param name="strIdentifier">hash table identifier for the string</param>
public void InvalidateSquare(string identifier)
{
BasicSquare square = ( BasicSquare )hashSquares[identifier];
if (square == null)
{
return;
}
if (ShowLegend == false)
{
Invalidate(new Rectangle(square.SquareHorizontalLocation, square.SquareVerticalLocation, square.SquareWidth, square.SquareHeight));
}
else
{
Invalidate(new Rectangle(square.SquareHorizontalLocation + LegendWidth, square.SquareVerticalLocation + LegendWidth, square.SquareWidth, square.SquareHeight));
}
square.IsValid = false;
}
private void OnPaint(object sender, System.Windows.Forms.PaintEventArgs e)
{
Graphics grfx = e.Graphics;
if (mode == SQUAREMODES.DISPLAYONLY)
{
/// this code just gives something to look at when the control is dropped onto a
/// form the control should be set up programmatically by the container program
/// which will then select modes etc to use.
Clear();
/// create some squares
hashSquares.Add("AA", new ControlDisplaySquare(100, 100, 0, 0, "AA"));
hashSquares.Add("AB", new ControlDisplaySquare(100, 100, 0, 100, "AB"));
hashSquares.Add("AC", new ControlDisplaySquare(100, 100, 0, 200, "AC"));
hashSquares.Add("BA", new ControlDisplaySquare(100, 100, 100, 0, "BA"));
hashSquares.Add("BB", new ControlDisplaySquare(100, 100, 100, 100, "BB"));
hashSquares.Add("BC", new ControlDisplaySquare(100, 100, 100, 200, "BC"));
hashSquares.Add("CA", new ControlDisplaySquare(100, 100, 200, 0, "CA"));
hashSquares.Add("CB", new ControlDisplaySquare(100, 100, 200, 100, "CB"));
hashSquares.Add("CC", new ControlDisplaySquare(100, 100, 200, 200, "CC"));
(( BasicSquare )hashSquares["AA"]).DrawLegend = true;
(( BasicSquare )hashSquares["AC"]).IsBottomSquare = true;
(( BasicSquare )hashSquares["BC"]).IsBottomSquare = true;
(( BasicSquare )hashSquares["CA"]).IsRightEdgeSquare = true;
(( BasicSquare )hashSquares["CB"]).IsRightEdgeSquare = true;
(( BasicSquare )hashSquares["CC"]).IsRightEdgeSquare = true;
(( BasicSquare )hashSquares["CC"]).IsBottomSquare = true;
foreach (DictionaryEntry dicEnt in hashSquares)
{
BasicSquare square = ( BasicSquare )dicEnt.Value;
square.DrawSquare(e.Graphics);
}
}
else /// draw the board
{
/// assume that the calls to paint are only made when necassary so draw all squares
/// this avoids having to call in from the container ( hopefully )
if (e.ClipRectangle.Width >= BoardWidth)
{
foreach (DictionaryEntry dicEnt in hashSquares)
{
BasicSquare square = ( BasicSquare )dicEnt.Value;
square.IsValid = false;
}
}
else
{
/// if not drawing the complet board work out which squares need drawing
/// NOTE maths is slightly out if using the legend ( but not enough to make much difference )
foreach (DictionaryEntry dicEnt in hashSquares)
{
BasicSquare square = ( BasicSquare )dicEnt.Value;
if (e.ClipRectangle.Width >= square.SquareHorizontalLocation ||
e.ClipRectangle.Height >= square.SquareVerticalLocation)
{
square.IsValid = false;
}
}
}
}
}
