Added missing files

src/ifcgeom/IfcGeomRenderStyles.h

@@ -0,0 +1,134 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+#ifndef IFCGEOMRENDERSTYLES_H
+#define IFCGEOMRENDERSTYLES_H
+
+#include <array>
+
+#include "../ifcparse/Ifc2x3.h"
+
+namespace IfcGeom {
+	class SurfaceStyle {
+	public:
+		class ColorComponent {
+		private:
+			std::array<double, 3> data;
+		public:
+			ColorComponent(double r, double g, double b) {
+				data[0] = r; data[1] = g; data[2] = b;
+			}
+			const double& R() const { return data[0]; }
+			const double& G() const { return data[1]; }
+			const double& B() const { return data[2]; }
+			double& R() { return data[0]; }
+			double& G() { return data[1]; }
+			double& B() { return data[2]; }
+		};
+	private:
+		boost::optional<std::string> name;
+		boost::optional<int> id;
+		boost::optional<ColorComponent> diffuse, specular;
+		boost::optional<double> transparency;
+		boost::optional<double> specularity;
+	public:
+		SurfaceStyle() {}
+		SurfaceStyle(int id) : id(id) {}
+		SurfaceStyle(const std::string& name) : name(name) {}
+		SurfaceStyle(int id, const std::string& name) : id(id), name(name) {}
+		
+		// Not used at this point. In fact, equality testing in the current
+		// architecture can just as easily be accomplished by comparing the
+		// pointer addresses of the styles, as they are always referenced 
+		// from out of a global map of some sort.
+		bool operator==(const SurfaceStyle& other) {
+			if (name && other.name) {
+				return *name == *other.name;
+			} else if (id && other.id) {
+				return *id == *other.id;
+			} else {
+				return false;
+			}
+		}
+		
+		const std::string Name() const { 
+			if (name && id) {
+				std::stringstream sstr; 
+				sstr << (*id) << "_" << (*name);
+				return sstr.str(); 
+			} else if (name) { 
+				return *name; 
+			} else if (id) { 
+				std::stringstream sstr; 
+				sstr << "IfcSurfaceStyleShading_" << (*id); 
+				return sstr.str(); 
+			} else {
+				return "IfcSurfaceStyleShading";
+			}
+		}
+
+		const boost::optional<ColorComponent>& Diffuse() const { return diffuse; }
+		const boost::optional<ColorComponent>& Specular() const { return specular; }
+		const boost::optional<double>& Transparency() const { return transparency; }
+		const boost::optional<double>& Specularity() const { return specularity; }
+		boost::optional<ColorComponent>& Diffuse() { return diffuse; }
+		boost::optional<ColorComponent>& Specular() { return specular; }
+		boost::optional<double>& Transparency() { return transparency; }
+		boost::optional<double>& Specularity() { return specularity; }
+	};
+
+	template <typename T> std::pair<Ifc2x3::IfcSurfaceStyle*, T*> get_surface_style(Ifc2x3::IfcRepresentationItem* representation_item) {
+		Ifc2x3::IfcStyledItem::list styled_items = representation_item->StyledByItem();
+		for (Ifc2x3::IfcStyledItem::it jt = styled_items->begin(); jt != styled_items->end(); ++jt) {
+			Ifc2x3::IfcPresentationStyleAssignment::list style_assignments = (*jt)->Styles();
+			for (Ifc2x3::IfcPresentationStyleAssignment::it kt = style_assignments->begin(); kt != style_assignments->end(); ++kt) {
+				IfcAbstractSelect::list styles = (*kt)->Styles();
+				for (IfcAbstractSelect::it lt = styles->begin(); lt != styles->end(); ++lt) {
+					IfcAbstractSelect::ptr style = *lt;
+					if (style->is(Ifc2x3::Type::IfcSurfaceStyle)) {
+						Ifc2x3::IfcSurfaceStyle* surface_style = (Ifc2x3::IfcSurfaceStyle*) style;
+						if (surface_style->Side() != Ifc2x3::IfcSurfaceSide::IfcSurfaceSide_NEGATIVE) {
+							IfcAbstractSelect::list styles_elements = surface_style->Styles();
+							for (IfcAbstractSelect::it mt = styles_elements->begin(); mt != styles_elements->end(); ++mt) {
+								if ((*mt)->is(T::Class())) {
+									return std::make_pair(surface_style, (T*) *mt);
+								}
+							}
+						}
+					}
+				}
+			}
+
+			// StyledByItem is a SET [0:1] OF IfcStyledItem, so we
+			// break after encountering the first IfcStyledItem
+			break;
+		}
+
+		return std::make_pair<Ifc2x3::IfcSurfaceStyle*, T*>(0,0);
+	}
+
+	const SurfaceStyle* get_style(Ifc2x3::IfcRepresentationItem* representation_item);
+	const SurfaceStyle* get_default_style(const std::string& ifc_type);
+	
+	namespace Cache {
+		void PurgeStyleCache();
+	}
+}
+
+#endif