//添加样式按钮
private void btnadd_Click(object sender, EventArgs e)
{
if (cboBoxLineType.SelectedIndex == 0)//简单线
{
ISimpleLineSymbol pSimpleLineSymbol = CreateSimpleLineSymbol();
pStyleGalleryItem.Item = pSimpleLineSymbol;
addListBoxItem();
PreviewImage();
}
else if (cboBoxLineType.SelectedIndex == 5) //点状线
{
IMarkerLineSymbol pMarkerLineSymbol = CreateMarkerLineSymbol();
pStyleGalleryItem.Item = pMarkerLineSymbol;
addListBoxItem();
PreviewImage();
}
}
private ISymbol SetColorOfUnknownSymbol(IClone ClonedSymbol, IColor Color)
{
ISymbol tempSetColorOfUnknownSymbol = null;
//
// This function takes an IClone interface, works out the underlying coclass
// (which should be some kind of symbol) and then sets the Color property
// according to the passed in color.
//
tempSetColorOfUnknownSymbol = null;
if (ClonedSymbol == null)
{
return(tempSetColorOfUnknownSymbol);
}
//
// Here we figure out which kind of symbol we have. For the simple symbol
// types, simply setting the color property is OK. However, more complex
// symbol types require further investigation.
//
IFillSymbol FillSymbol = null;
IMarkerFillSymbol MarkerFillSymbol = null;
IMarkerSymbol MarkerSymbol_A = null;
ILineFillSymbol LineFillSymbol = null;
ILineSymbol LineSymbol = null;
IPictureFillSymbol PictureFillSymbol = null;
IMarkerSymbol MarkerSymbol_B = null;
IPictureMarkerSymbol PictureMarkerSymbol = null;
IMarkerLineSymbol MarkerLineSymbol = null;
IMarkerSymbol MarkerSymbol_C = null;
ILineSymbol LineSymbol_B = null;
if (ClonedSymbol is ISymbol)
{
//
// Check for Fill symbols.
//
if (ClonedSymbol is IFillSymbol)
{
//
// Check for SimpleFillSymbols or MultiLevelFillSymbols.
//
if ((ClonedSymbol is ISimpleFillSymbol) | (ClonedSymbol is IMultiLayerFillSymbol))
{
FillSymbol = (IFillSymbol)ClonedSymbol;
//
// Here we simply change the color of the Fill.
//
FillSymbol.Color = Color;
tempSetColorOfUnknownSymbol = (ISymbol)FillSymbol;
//
// Check for MarkerFillSymbols.
//
}
else if (ClonedSymbol is IMarkerFillSymbol)
{
MarkerFillSymbol = (IMarkerFillSymbol)ClonedSymbol;
//
// Here we change the color of the MarkerSymbol.
//
MarkerSymbol_A = (IMarkerSymbol)SetColorOfUnknownSymbol((IClone)MarkerFillSymbol.MarkerSymbol, Color);
MarkerFillSymbol.MarkerSymbol = MarkerSymbol_A;
tempSetColorOfUnknownSymbol = (ISymbol)MarkerFillSymbol;
//
// Check for LineFillSymbols.
//
}
else if (ClonedSymbol is ILineFillSymbol)
{
LineFillSymbol = (ILineFillSymbol)ClonedSymbol;
//
// Here we change the color of the LineSymbol.
//
LineSymbol = (ILineSymbol)SetColorOfUnknownSymbol((IClone)LineFillSymbol.LineSymbol, Color);
LineFillSymbol.LineSymbol = LineSymbol;
tempSetColorOfUnknownSymbol = (ISymbol)LineFillSymbol;
//
// Check for PictureFillSymbols.
//
}
else if (ClonedSymbol is IPictureFillSymbol)
{
PictureFillSymbol = (IPictureFillSymbol)ClonedSymbol;
//
// Here we simply change the color of the BackgroundColor.
//
PictureFillSymbol.BackgroundColor = Color;
tempSetColorOfUnknownSymbol = (ISymbol)PictureFillSymbol;
}
//
// Check for Marker symbols.
//
}
else if (ClonedSymbol is IMarkerSymbol)
{
//
// Check for SimpleMarkerSymbols, ArrowMarkerSymbols or
// CharacterMarkerSymbols.
//
if ((ClonedSymbol is IMultiLayerMarkerSymbol) | (ClonedSymbol is ISimpleMarkerSymbol) | (ClonedSymbol is IArrowMarkerSymbol) | (ClonedSymbol is ICharacterMarkerSymbol))
{
MarkerSymbol_B = (IMarkerSymbol)ClonedSymbol;
//
// For these types, we simply change the color property.
//
MarkerSymbol_B.Color = Color;
tempSetColorOfUnknownSymbol = (ISymbol)MarkerSymbol_B;
//
// Check for PictureMarkerSymbols.
//
}
else if (ClonedSymbol is IPictureMarkerSymbol)
{
PictureMarkerSymbol = (IPictureMarkerSymbol)ClonedSymbol;
//
// Here we change the BackgroundColor property.
//
PictureMarkerSymbol.Color = Color;
tempSetColorOfUnknownSymbol = (ISymbol)PictureMarkerSymbol;
}
//
// Check for Line symbols.
//
}
else if (ClonedSymbol is ILineSymbol)
{
//
// Check for MarkerLine symbols.
//
if (ClonedSymbol is IMarkerLineSymbol)
{
MarkerLineSymbol = (IMarkerLineSymbol)ClonedSymbol;
//
// Here we change the color of the MarkerSymbol.
//
MarkerSymbol_C = (IMarkerSymbol)SetColorOfUnknownSymbol((IClone)MarkerLineSymbol.MarkerSymbol, Color);
MarkerLineSymbol.MarkerSymbol = MarkerSymbol_C;
tempSetColorOfUnknownSymbol = (ISymbol)MarkerLineSymbol;
//
// Check for other Line symbols.
//
}
else if ((ClonedSymbol is ISimpleLineSymbol) | (ClonedSymbol is IHashLineSymbol) | (ClonedSymbol is ICartographicLineSymbol))
{
LineSymbol_B = (ILineSymbol)ClonedSymbol;
LineSymbol_B.Color = Color;
tempSetColorOfUnknownSymbol = (ISymbol)LineSymbol_B;
}
}
}
return(tempSetColorOfUnknownSymbol);
}