Warning, /include/Geant4/tools/sg/draw_style is written in an unsupported language. File is not indexed.
0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef tools_sg_draw_style
0005 #define tools_sg_draw_style
0006
0007 #include "node"
0008
0009 #include "lpat"
0010 #include "sf_enum"
0011 #include "render_action"
0012 #include "pick_action"
0013 #include "bbox_action"
0014
0015 namespace tools {
0016 namespace sg {
0017
0018 class draw_style : public node {
0019 TOOLS_NODE(draw_style,tools::sg::draw_style,node)
0020 public:
0021 sf_enum<draw_type> style;
0022 sf<float> line_width;
0023 sf<lpat> line_pattern;
0024 sf<float> point_size;
0025 sf<bool> cull_face;
0026 sf<bool> winding_ccw;
0027 sf<bool> point_smooth;
0028 public:
0029 virtual const desc_fields& node_desc_fields() const {
0030 TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::draw_style)
0031 static const desc_fields s_v(parent::node_desc_fields(),7, //WARNING : take care of count.
0032 TOOLS_ARG_FIELD_DESC(style),
0033 TOOLS_ARG_FIELD_DESC(line_width),
0034 TOOLS_ARG_FIELD_DESC(line_pattern),
0035 TOOLS_ARG_FIELD_DESC(point_size),
0036 TOOLS_ARG_FIELD_DESC(cull_face),
0037 TOOLS_ARG_FIELD_DESC(winding_ccw),
0038 TOOLS_ARG_FIELD_DESC(point_smooth)
0039 );
0040 return s_v;
0041 }
0042 private:
0043 void add_fields(){
0044 add_field(&style);
0045 add_field(&line_width);
0046 add_field(&line_pattern);
0047 add_field(&point_size);
0048 add_field(&cull_face);
0049 add_field(&winding_ccw);
0050 add_field(&point_smooth);
0051 }
0052 public:
0053 virtual void render(render_action& a_action) {
0054 state& state = a_action.state();
0055 _set_state(state);
0056
0057 if(style.value()==draw_lines) {
0058 a_action.line_width(state.m_line_width);
0059 } else if(style.value()==draw_points) {
0060 a_action.point_size(state.m_point_size);
0061 a_action.set_point_smooth(state.m_GL_POINT_SMOOTH);
0062 } else if(style.value()==draw_filled) {
0063 a_action.set_cull_face(state.m_GL_CULL_FACE);
0064 a_action.set_winding(state.m_winding);
0065 }
0066 }
0067 virtual void pick(pick_action& a_action) {_set_state(a_action.state());}
0068 virtual void bbox(bbox_action& a_action) {_set_state(a_action.state());}
0069 public:
0070 draw_style()
0071 :parent()
0072 ,style(draw_filled)
0073 ,line_width(1) //NOTE : 0 induces a 501 gl error.
0074 ,line_pattern(line_solid)
0075 ,point_size(1)
0076 ,cull_face(true)
0077 ,winding_ccw(true)
0078 ,point_smooth(false)
0079 {
0080 add_fields();
0081 }
0082 virtual ~draw_style(){}
0083 public:
0084 draw_style(const draw_style& a_from)
0085 :parent(a_from)
0086 ,style(a_from.style)
0087 ,line_width(a_from.line_width)
0088 ,line_pattern(a_from.line_pattern)
0089 ,point_size(a_from.point_size)
0090 ,cull_face(a_from.cull_face)
0091 ,winding_ccw(a_from.winding_ccw)
0092 ,point_smooth(a_from.point_smooth)
0093 {
0094 add_fields();
0095 }
0096 draw_style& operator=(const draw_style& a_from){
0097 parent::operator=(a_from);
0098
0099 style = a_from.style;
0100 line_width = a_from.line_width;
0101 line_pattern = a_from.line_pattern;
0102 point_size = a_from.point_size;
0103 cull_face = a_from.cull_face;
0104 winding_ccw = a_from.winding_ccw;
0105 point_smooth = a_from.point_smooth;
0106
0107 return *this;
0108 }
0109 protected:
0110 void _set_state(state& a_state) {
0111 a_state.m_draw_type = style;
0112 a_state.m_line_width = line_width;
0113 a_state.m_line_pattern = line_pattern;
0114 a_state.m_point_size = point_size;
0115 a_state.m_GL_CULL_FACE = cull_face;
0116 a_state.m_winding = winding_ccw.value()?sg::winding_ccw:sg::winding_cw;
0117 a_state.m_GL_POINT_SMOOTH = point_smooth;
0118 }
0119 };
0120
0121 }}
0122
0123 #endif
