C++ (Cpp) CSG_Parameter::asChoice Examples

Example #1

File: table.cpp Project: Fooway/SAGA-GIS-git-mirror

//---------------------------------------------------------
void CTable_Drop::On_Connection_Changed(CSG_Parameters *pParameters)
{
	CSG_Parameter	*pParameter	= pParameters->Get_Parameter("TABLES");

	pParameter->asChoice()->Set_Items(Get_Connection()->Get_Tables());
	pParameter->Set_Value(pParameter->asString());
}

Example #2

File: wms_import.cpp Project: Fooway/SAGA-GIS-git-mirror

//---------------------------------------------------------
bool CWMS_Import::Get_Map(wxHTTP *pServer, const CSG_String &Directory, CWMS_Capabilities &Cap)
{
	bool	bResult	= false;

	int				i, n;
	CSG_Rect		r(Cap.m_Extent);
	CSG_Parameters	p;

	//-----------------------------------------------------
//	if( Cap.m_MaxWidth  > 2 && NX > Cap.m_MaxWidth  )	NX	= Cap.m_MaxWidth;
//	if( Cap.m_MaxHeight > 2 && NY > Cap.m_MaxHeight )	NY	= Cap.m_MaxHeight;

	p.Add_Range	(NULL	, "X_RANGE"	, _TL("X Range")	, _TL(""), r.Get_XMin(), r.Get_XMax(), r.Get_XMin(), r.Get_XRange() > 0.0, r.Get_XMax(), r.Get_XRange() > 0.0);
	p.Add_Range	(NULL	, "Y_RANGE"	, _TL("Y Range")	, _TL(""), r.Get_YMin(), r.Get_YMax(), r.Get_YMin(), r.Get_YRange() > 0.0, r.Get_YMax(), r.Get_YRange() > 0.0);

	p.Add_Value	(NULL	, "CELLSIZE", _TL("Cellsize")	, _TL(""), PARAMETER_TYPE_Double, r.Get_XRange() / 2001.0, 0.0, true);

	p.Add_Choice(NULL	, "FORMAT"	, _TL("Format")		, _TL(""), Cap.m_Formats);
	p.Add_Choice(NULL	, "PROJ"	, _TL("Projections"), _TL(""), Cap.m_Projections);

	CSG_Parameter	*pNode	= p("FORMAT");
	for(i=0; i<pNode->asChoice()->Get_Count(); i++)
	{
		CSG_String	s(pNode->asChoice()->Get_Item(i));
		if( !s.CmpNoCase(SG_T("image/png")) )
			pNode->Set_Value(i);
	}

	for(i=0; i<Cap.m_Layers_Name.Get_Count(); i++)
	{
		p.Add_Value(NULL, Cap.m_Layers_Name[i], Cap.m_Layers_Title[i], "", PARAMETER_TYPE_Bool, false);
	}

	//-----------------------------------------------------
	if( pServer && Dlg_Parameters(&p, _TL("WMS Import")) )
	{
		int			NX, NY;
		double		Cellsize;
		CSG_String	Layers, Format;

		//-------------------------------------------------
		r.Assign(
			p("X_RANGE")->asRange()->Get_LoVal(),
			p("Y_RANGE")->asRange()->Get_LoVal(),
			p("X_RANGE")->asRange()->Get_HiVal(),
			p("Y_RANGE")->asRange()->Get_HiVal()
		);

		Cellsize	= p("CELLSIZE")	->asDouble();

		NX			= 1 + (int)(r.Get_XRange() / Cellsize);
		NY			= 1 + (int)(r.Get_YRange() / Cellsize);

		//-------------------------------------------------
		Layers.Clear();

		for(i=0, n=0; i<Cap.m_Layers_Name.Get_Count(); i++)
		{
			if( p(Cap.m_Layers_Name[i])->asBool() )
			{
				if( n++ > 0 )	Layers	+= ",";

				Layers	+= Cap.m_Layers_Name[i];
			}
		}

		if( n == 0 )
		{
			return( false );
		}

		//-------------------------------------------------
		wxBitmapType	tFormat;

		Format	= p("FORMAT")->asString();

		if(      Format.Contains(SG_T("image/gif" )) )	tFormat	= wxBITMAP_TYPE_GIF ;
		else if( Format.Contains(SG_T("image/jpeg")) )	tFormat	= wxBITMAP_TYPE_JPEG;
		else if( Format.Contains(SG_T("image/png" )) )	tFormat	= wxBITMAP_TYPE_PNG ;
		else if( Format.Contains(SG_T("image/wbmp")) )	tFormat	= wxBITMAP_TYPE_BMP ;
		else if( Format.Contains(SG_T("image/bmp" )) )	tFormat	= wxBITMAP_TYPE_BMP ;
		else if( Format.Contains(SG_T("image/tiff")) )	tFormat	= wxBITMAP_TYPE_TIF ;
		else if( Format.Contains(SG_T("GIF"       )) )	tFormat	= wxBITMAP_TYPE_GIF ;
		else if( Format.Contains(SG_T("JPEG"      )) )	tFormat	= wxBITMAP_TYPE_JPEG;
		else if( Format.Contains(SG_T("PNG"       )) )	tFormat	= wxBITMAP_TYPE_PNG ;
		else
		{
			return( false );
		}

		//-------------------------------------------------
		CSG_String	sRequest(Directory);

		sRequest	+= SG_T("?SERVICE=WMS");
		sRequest	+= SG_T("&VERSION=")	+ Cap.m_Version;
		sRequest	+= SG_T("&REQUEST=GetMap");

		sRequest	+= SG_T("&LAYERS=")		+ Layers;

		if( Cap.m_Projections.Length() > 0 )
			sRequest	+= CSG_String(S_SRS(Cap.m_Version)) + p("PROJ")->asString();

		sRequest	+= SG_T("&FORMAT=")		+ Format;

		sRequest	+= CSG_String::Format(SG_T("&WIDTH=%d&HEIGHT=%d"), NX, NY);
		sRequest	+= CSG_String::Format(SG_T("&BBOX=%f,%f,%f,%f"), r.m_rect.xMin, r.m_rect.yMin, r.m_rect.xMax, r.m_rect.yMax);

		Message_Add(sRequest, true);

		//-------------------------------------------------
		wxInputStream	*pStream;

		if( (pStream = pServer->GetInputStream(sRequest.c_str())) == NULL )
		{
			Message_Add(_TL("could not open GetMap stream"));
		}
		else
		{
			wxImage	Image;

			if( Image.LoadFile(*pStream, tFormat) == false )
			{
				Message_Add(_TL("could not read image"));

				CSG_String	s	= SG_T("\n");

				pStream->SeekI(0, wxFromStart);

				while( !pStream->Eof() )
				{
					s	+= (char)pStream->GetC();
				}

				Message_Add(s);
			}
			else
			{
				CSG_Grid	*pGrid	= SG_Create_Grid(SG_DATATYPE_Int, Image.GetWidth(), Image.GetHeight(), Cellsize, r.m_rect.xMin, r.m_rect.yMin);

				for(int y=0, yy=pGrid->Get_NY()-1; y<pGrid->Get_NY() && Set_Progress(y, pGrid->Get_NY()); y++, yy--)
				{
					for(int x=0; x<pGrid->Get_NX(); x++)
					{
						pGrid->Set_Value(x, y, SG_GET_RGB(Image.GetRed(x, yy), Image.GetGreen(x, yy), Image.GetBlue(x, yy)));
					}
				}

				//-----------------------------------------
				pGrid->Set_Name(Cap.m_Title);
				Parameters("MAP")->Set_Value(pGrid);
				DataObject_Set_Colors(pGrid, 100, SG_COLORS_BLACK_WHITE);

				CSG_Parameters	Parms;

				if( DataObject_Get_Parameters(pGrid, Parms) && Parms("COLORS_TYPE") )
				{
					Parms("COLORS_TYPE")->Set_Value(3);	// Color Classification Type: RGB

					DataObject_Set_Parameters(pGrid, Parms);
				}

				bResult	= true;
			}

			delete(pStream);
		}
	}

	return( bResult );
}