private void symbolsListView1_OnDeleteItem(string key)
{
if (_renderer == null || _fc == null)
{
return;
}
if (key.Contains(":"))
{
int pos = key.IndexOf(":");
int index;
if (int.TryParse(key.Substring(0, pos), out index))
{
if (index > 0 && index <= _renderer.QuantityClasses.Count)
{
QuantityRenderer.QuantityClass qClass = _renderer.QuantityClasses[index - 1];
_renderer.RemoveClass(qClass);
}
else if (index == 0)
{
_renderer.DefaultSymbol = new NullSymbol(_fc.GeometryType);
}
}
BuildList();
}
}
private void btnOK_Click(object sender, EventArgs e)
{
if (Math.Abs(numMin.Double - numMax.Double) < 1e-10)
{
return;
}
if (_renderer == null)
{
return;
}
foreach (QuantityRenderer.QuantityClass qC in _renderer.QuantityClasses)
{
_renderer.RemoveClass(qC);
}
double stepWidth = numStepWidth.Double;
if (btnFixStepCount.Checked)
{
stepWidth = (numMax.Double - numMin.Double) / Math.Max(numStepCount.Double, 1);
}
double x;
ISymbol symbol;
QuantityRenderer.QuantityClass qClass;
for (x = numMin.Double; x < numMax.Double - stepWidth; x += stepWidth)
{
symbol = AlternateSymbol(_minSymbol, _maxSymbol, (x - numMin.Double) / (numMax.Double - numMin.Double));
if (symbol == null)
{
continue;
}
if (symbol is ILegendItem)
{
((ILegendItem)symbol).LegendLabel = x.ToString() + " - " + (x + stepWidth).ToString();
}
qClass = new QuantityRenderer.QuantityClass(
x, x + stepWidth, symbol);
try
{
_renderer.AddClass(qClass);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
symbol = _maxSymbol.Clone() as ISymbol;
if (symbol is ILegendItem)
{
((ILegendItem)symbol).LegendLabel = x.ToString() + " - " + (numMax.Double).ToString();
}
qClass = new QuantityRenderer.QuantityClass(
x, numMax.Double, symbol);
try
{
_renderer.AddClass(qClass);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}