Gabriele Cosmo
119 lines
3.1 KiB
Plaintext
119 lines
3.1 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_sg_draw_style
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#define tools_sg_draw_style
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#include "node"
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#include "lpat"
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#include "sf_enum"
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#include "render_action"
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#include "pick_action"
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#include "bbox_action"
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namespace tools {
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namespace sg {
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class draw_style : public node {
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TOOLS_NODE(draw_style,tools::sg::draw_style,node)
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public:
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sf_enum<draw_type> style;
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sf<float> line_width;
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sf<lpat> line_pattern;
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sf<float> point_size;
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sf<bool> cull_face;
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sf<bool> winding_ccw;
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public:
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virtual const desc_fields& node_desc_fields() const {
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TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::draw_style)
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static const desc_fields s_v(parent::node_desc_fields(),6, //WARNING : take care of count.
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TOOLS_ARG_FIELD_DESC(style),
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TOOLS_ARG_FIELD_DESC(line_width),
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TOOLS_ARG_FIELD_DESC(line_pattern),
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TOOLS_ARG_FIELD_DESC(point_size),
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TOOLS_ARG_FIELD_DESC(cull_face),
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TOOLS_ARG_FIELD_DESC(winding_ccw)
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);
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return s_v;
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}
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private:
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void add_fields(){
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add_field(&style);
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add_field(&line_width);
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add_field(&line_pattern);
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add_field(&point_size);
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add_field(&cull_face);
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add_field(&winding_ccw);
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}
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public:
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virtual void render(render_action& a_action) {
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state& state = a_action.state();
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_set_state(state);
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if(style.value()==draw_lines) {
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//no LINE_STIPPLE in GLES.
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//::glEnable(GL_LINE_STIPPLE); //done in viewer::render()
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//::glLineStipple(1,line_pattern.value());
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a_action.line_width(state.m_line_width);
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} else if(style.value()==draw_points) {
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a_action.point_size(state.m_point_size);
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} else if(style.value()==draw_filled) {
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a_action.set_cull_face(state.m_GL_CULL_FACE);
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a_action.set_winding(state.m_winding);
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}
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}
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virtual void pick(pick_action& a_action) {_set_state(a_action.state());}
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virtual void bbox(bbox_action& a_action) {_set_state(a_action.state());}
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public:
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draw_style()
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:parent()
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,style(draw_filled)
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,line_width(1) //NOTE : 0 induces a 501 gl error.
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,line_pattern(line_solid)
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,point_size(1)
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,cull_face(true)
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,winding_ccw(true)
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{
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add_fields();
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}
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virtual ~draw_style(){}
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public:
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draw_style(const draw_style& a_from)
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:parent(a_from)
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,style(a_from.style)
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,line_width(a_from.line_width)
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,line_pattern(a_from.line_pattern)
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,point_size(a_from.point_size)
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,cull_face(a_from.cull_face)
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,winding_ccw(a_from.winding_ccw)
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{
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add_fields();
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}
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draw_style& operator=(const draw_style& a_from){
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parent::operator=(a_from);
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style = a_from.style;
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line_width = a_from.line_width;
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line_pattern = a_from.line_pattern;
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point_size = a_from.point_size;
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cull_face = a_from.cull_face;
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winding_ccw = a_from.winding_ccw;
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return *this;
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}
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protected:
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void _set_state(state& a_state) {
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a_state.m_draw_type = style;
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a_state.m_line_width = line_width;
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a_state.m_line_pattern = line_pattern;
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a_state.m_point_size = point_size;
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a_state.m_GL_CULL_FACE = cull_face;
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a_state.m_winding = winding_ccw.value()?sg::winding_ccw:sg::winding_cw;
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}
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};
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}}
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#endif
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