/// <summary>
/// Updates the preview display using the specified symbolizer
/// </summary>
/// <param name="symbolizer">The symbolizer displayed in the preview</param>
public void UpdatePreview(IFeatureSymbolizer symbolizer)
{
if (symbolizer == null)
{
return;
}
_symbolizer = symbolizer;
Graphics g = CreateGraphics();
Rectangle rect = new Rectangle(0, 0, this.Width, this.Height);
if (symbolizer is PointSymbolizer)
{
DrawPointSymbolizer(symbolizer as PointSymbolizer, g, rect);
}
else if (symbolizer is LineSymbolizer)
{
DrawLineSymbolizer(symbolizer as LineSymbolizer, g, rect);
}
else if (symbolizer is PolygonSymbolizer)
{
DrawPolygonSymbolizer(symbolizer as PolygonSymbolizer, g, rect);
}
else
{
symbolizer.Draw(g, rect);
}
g.Dispose();
}
/// <summary>
/// Updates the preview display using the specified symbolizer.
/// </summary>
/// <param name="symbolizer">The symbolizer displayed in the preview.</param>
public void UpdatePreview(IFeatureSymbolizer symbolizer)
{
if (symbolizer == null)
{
return;
}
_symbolizer = symbolizer;
using Graphics g = CreateGraphics();
Rectangle rect = new(0, 0, Width, Height);
if (symbolizer is PointSymbolizer pointSymbolizer)
{
DrawPointSymbolizer(pointSymbolizer, g, rect);
return;
}
if (symbolizer is LineSymbolizer lineSymbolizer)
{
DrawLineSymbolizer(lineSymbolizer, g, rect);
return;
}
if (symbolizer is PolygonSymbolizer polygonSymbolizer)
{
DrawPolygonSymbolizer(polygonSymbolizer, g, rect);
}
else
{
symbolizer.Draw(g, rect);
}
}
/// <summary>
/// Updates the preview display using the specified symbolizer
/// </summary>
/// <param name="symbolizer">The symbolizer displayed in the preview</param>
public void UpdatePreview(IFeatureSymbolizer symbolizer)
{
if (symbolizer == null) return;
_symbolizer = symbolizer;
Graphics g = CreateGraphics();
Rectangle rect = new Rectangle(0, 0, this.Width, this.Height);
if (symbolizer is PointSymbolizer)
{
DrawPointSymbolizer(symbolizer as PointSymbolizer, g, rect);
}
else if (symbolizer is LineSymbolizer)
{
DrawLineSymbolizer(symbolizer as LineSymbolizer, g, rect);
}
else if (symbolizer is PolygonSymbolizer)
{
DrawPolygonSymbolizer(symbolizer as PolygonSymbolizer, g, rect);
}
else
{
symbolizer.Draw(g, rect);
}
g.Dispose();
}
/// <summary>
/// Controls what happens in the legend when this item is instructed to draw a symbol.
/// </summary>
/// <param name="g"></param>
/// <param name="box"></param>
public override void LegendSymbol_Painted(Graphics g, Rectangle box)
{
_featureSymbolizer.Draw(g, box);
}