| Geant4 Cross Reference |
1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
2 // See the file tools.license for terms.
3
4 #ifndef tools_sg_text_valop
5 #define tools_sg_text_valop
6
7 #include "base_text"
8 #include "valop2sg"
9 #include "nodekit"
10 #include "base_freetype"
11 #include "mnmx"
12 #include "../nostream"
13
14 namespace tools {
15 namespace sg {
16
17 class text_valop : public base_text {
18 public:
19 TOOLS_NODE(text_valop,tools::sg::text_valop,base_text)
20 public:
21 sf_string encoding;
22 sf_string font;
23 sf_enum<sg::font_modeling> font_modeling;
24 public:
25 virtual const desc_fields& node_desc_fields() const {
26 TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::text_valop)
27 static const desc_fields s_v(parent::node_desc_fields(),3, //WARNING : take care of count.
28 TOOLS_ARG_FIELD_DESC(encoding),
29 TOOLS_ARG_FIELD_DESC(font),
30 TOOLS_ARG_FIELD_DESC_ENUMS_BEG(font_modeling,3)
31 TOOLS_ARG_ENUM(font_outline),
32 TOOLS_ARG_ENUM(font_filled),
33 TOOLS_ARG_ENUM(font_pixmap)
34 TOOLS_ARG_FIELD_DESC_ENUMS_END
35 );
36 return s_v;
37 }
38 private:
39 void add_fields(){
40 add_field(&encoding);
41 add_field(&font);
42 add_field(&font_modeling);
43 }
44 public:
45 virtual void render(render_action& a_action) {
46 if(touched()) {
47 update_sg(a_action.out());
48 reset_touched();
49 }
50 m_sep.render(a_action);
51 }
52 virtual void pick(pick_action& a_action) {
53 if(touched()) {
54 update_sg(a_action.out());
55 reset_touched();
56 }
57 nodekit_pick(a_action,m_sep,this);
58 }
59 virtual void bbox(bbox_action& a_action) {
60 if(touched()) {
61 update_sg(a_action.out());
62 reset_touched();
63 }
64 m_sep.bbox(a_action);
65 }
66 virtual void search(search_action& a_action) {
67 if(touched()) {
68 update_sg(a_action.out());
69 reset_touched();
70 }
71 parent::search(a_action);
72 if(a_action.done()) return;
73 if(a_action.do_path()) a_action.path_push(this);
74 m_sep.search(a_action);
75 if(a_action.done()) return;
76 if(a_action.do_path()) a_action.path_pop();
77 }
78 public:
79 text_valop(const base_freetype& a_ttf)
80 :parent()
81 ,encoding(encoding_none())
82 ,font(font_hershey())
83 ,font_modeling(font_filled)
84 ,m_ttf(a_ttf)
85 {
86 add_fields();
87 }
88 virtual ~text_valop(){}
89 public:
90 text_valop(const text_valop& a_from)
91 :parent(a_from)
92 ,encoding(a_from.encoding)
93 ,font(a_from.font)
94 ,font_modeling(a_from.font_modeling)
95 ,m_ttf(a_from.m_ttf)
96 {
97 add_fields();
98 }
99 text_valop& operator=(const text_valop& a_from){
100 parent::operator=(a_from);
101 encoding = a_from.encoding;
102 font = a_from.font;
103 font_modeling = a_from.font_modeling;
104 return *this;
105 }
106 public: //sg::base_text :
107 virtual void get_bounds(float /*a_height*/,
108 float& a_mn_x,float& a_mn_y,float& a_mn_z,
109 float& a_mx_x,float& a_mx_y,float& a_mx_z) const {
110 text_valop& self = const_cast<text_valop&>(*this);
111 if(self.touched()) {
112 self.update_sg(self.m_out);
113 self.reset_touched();
114 }
115 vec3f mn,mx;
116 mnmx(self.m_out,self.m_sep,mn,mx);
117 a_mn_x = mn[0];a_mn_y = mn[1];a_mn_z = mn[2];
118 a_mx_x = mx[0];a_mx_y = mx[1];a_mx_z = mx[2];
119 //::printf("debug : get_bounds : %g %g %g : %g %g %g\n",a_mn_x,a_mn_y,a_mn_z,a_mx_x,a_mx_y,a_mx_z);
120 }
121 virtual float ascent(float) const {return 1;}
122 virtual float y_advance(float) const {return 1;}
123 virtual float descent(float) const {return 0;}
124 virtual bool truncate(const std::string&,float,float,std::string&) const {return false;}
125 protected:
126 void update_sg(std::ostream& a_out) {
127 m_sep.clear();
128 matrix* tsf = new matrix;
129 m_sep.add(tsf);
130 tools_vforcit(std::string,strings.values(),it) {
131 valop* _valop = new valop(valop::STRING,*it);
132 valop2sg v(a_out,m_sep,m_ttf);
133 if(!v.visit(*_valop)) {
134 a_out << "tools::sg::text_valop::upate_sg : valop2sg.visit() failed." << std::endl;
135 m_sep.clear();
136 delete _valop;
137 return;
138 }
139 delete _valop;
140 }
141 vec3f mn,mx;
142 mnmx(a_out,m_sep,mn,mx);
143 float h = mx[1]-mn[1];
144 if(!h) {
145 a_out << "tools::sg::text_valop::upate_sg : valop has null height." << std::endl;
146 m_sep.clear();
147 return;
148 }
149 float scale = height.value()/h;
150 tsf->set_scale(scale,scale,1);
151 }
152 protected:
153 const base_freetype& m_ttf;
154 separator m_sep;
155 nostream m_out;
156 };
157
158 }}
159
160 #endif