protected override void OnMouseDown(MouseEventArgs e)
{
LCDIndicatorSymbol s = this.GetSymbolByPoint(new Point(e.X, e.Y));
if (s == null)
{
goto end;
}
if (((LCDIndicator.ModifierKeys & Keys.Shift) == Keys.Shift) && s.PositionInIndicator.Y == this.CursorPos.Y)
{
int x = this.selection.Start.X + this.selection.Length - this.selection.Direction;
int l = (Math.Abs(s.PositionInIndicator.X - x) + 1) * (s.PositionInIndicator.X > x ? -1 : 1);
if (l < 0 && this[this.CurrentRow].ContainsObjectInPosition(s.PositionInIndicator.X + l + 1))
{
l++;
}
this.SetSelection(s.PositionInIndicator, l);
}
else
{
this.SetSelection(s.PositionInIndicator, 1);
}
end:
base.OnMouseDown(e);
this.Focus();
}
protected override void OnMouseMove(MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
{
goto end;
}
LCDIndicatorSymbol s = this.GetSymbolByPoint(new Point(e.X, e.Y));
if (s == null || s.PositionInIndicator == this.selection.Start)
{
goto end;
}
if (s.PositionInIndicator.Y != this.CursorPos.Y)
{
this.SetSelection(s.PositionInIndicator, 1);
}
else
{
int l = -1 * ((s.PositionInIndicator.X - this.selection.End.X) + Math.Sign(s.PositionInIndicator.X - this.selection.End.X));
if (l < 0 && this[this.CurrentRow].ContainsObjectInPosition(s.PositionInIndicator.X + l + 1))
{
l++;
}
this.SetSelection(s.PositionInIndicator, l);
}
end:
this.Invalidate();
base.OnMouseMove(e);
}
public LCDIndicatorSymbol()
{
this.Size = this.MaximumSize;
if (LCDIndicatorSymbol.nonStandartSymbolCodes == null)
{
LCDIndicatorSymbol.CreateCodesHashtable();
}
if (LCDIndicatorSymbol.masks == null)
{
LCDIndicatorSymbol.CreateSymbolMasksHashtable();
}
this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
this.Symbol = ' ';
}
/// <summary>
/// Создает и инициализирует массив символов индикатора
/// </summary>
private void CreateSymbols()
{
this.symbols = new LCDIndicatorSymbol[this.rowCount, this.symbolsInRow];
for (int i = 0; i < this.rowCount; i++)
{
for (int j = 0; j < this.symbolsInRow; j++)
{
LCDIndicatorSymbol symbol = new LCDIndicatorSymbol();
symbol.PositionInIndicator = new Point(j, i);
symbol.Location = new Point(this.horizontalMargin + j * (symbol.Width + this.sizeBetweenSymbols),
this.verticalMargin + i * (symbol.Height + this.sizeBetweenSymbols));
this.Controls.Add(symbol);
this.symbols[i, j] = symbol;
}
}
}
/// <summary>
/// Отрисовывает рамку выделения вокруг символа
/// </summary>
private void DwawSymbolSelection(LCDIndicatorSymbol symbol, Graphics graphics)
{
graphics.DrawRectangle(new Pen(this.SelectionColor), new Rectangle(symbol.Left - 1, symbol.Top - 1, symbol.Width + 1, symbol.Height + 1));
}