Gabriele Cosmo
89 lines
2.0 KiB
Plaintext
89 lines
2.0 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_ortho
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#define tools_sg_ortho
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#include "base_camera"
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namespace tools {
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namespace sg {
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class ortho : public base_camera {
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TOOLS_NODE(ortho,tools::sg::ortho,base_camera)
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public:
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virtual float near_height() const {return height.value();}
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virtual void zoom(float a_fac) {
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//for exa :
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// a_fac = 0.99f is a zoom in
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// a_fac = 1.01f is a zoom out
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height.value(height.value()*a_fac);
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}
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virtual camera_type type() const {return camera_ortho;}
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public:
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sf<float> height;
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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::ortho)
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static const desc_fields s_v(parent::node_desc_fields(),1, //WARNING : take care of count.
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TOOLS_ARG_FIELD_DESC(height)
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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(&height);
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}
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public:
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ortho()
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:parent()
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,height(2)
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{
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add_fields();
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}
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virtual ~ortho(){
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}
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public:
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ortho(const ortho& a_from)
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:parent(a_from)
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,height(a_from.height)
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{
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add_fields();
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}
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ortho& operator=(const ortho& a_from){
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parent::operator=(a_from);
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height = a_from.height;
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return *this;
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}
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public: //operators:
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bool operator==(const ortho& a_from) const{
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if(!parent::operator==(a_from)) return false;
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if(height!=a_from.height) return false;
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return true;
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}
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bool operator!=(const ortho& a_from) const {
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return !operator==(a_from);
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}
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public:
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void dump(std::ostream& a_out) {
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parent::dump(a_out);
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a_out << " height " << height.value() << std::endl;
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}
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protected:
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virtual void get_lrbt(unsigned int a_ww,unsigned int a_wh,
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float& a_l,float& a_r,float& a_b,float& a_t) {
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float aspect = float(a_ww)/float(a_wh);
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float hh = height.value()*0.5f;
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a_l = -aspect*hh;
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a_r = aspect*hh;
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a_b = -hh;
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a_t = hh;
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}
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};
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inline ortho* cast_ortho(base_camera& a_bcam) {return safe_cast<base_camera,ortho>(a_bcam);}
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}}
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#endif
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