1 #include <msp/gl/immediate.h>
2 #include <msp/gl/matrix.h>
15 Text::Text(const Style &s, const string &t):
21 void Text::set_style(const Style *s)
25 float font_size=style->get_font()->get_default_size();
26 for(vector<Line>::iterator i=lines.begin(); i!=lines.end(); ++i)
27 i->width=static_cast<unsigned>(style->get_font()->get_string_width(text.substr(i->start, i->length))*font_size);
30 unsigned Text::get_width() const
33 for(vector<Line>::const_iterator i=lines.begin(); i!=lines.end(); ++i)
34 width=max(width, i->width);
38 unsigned Text::get_height() const
40 const GL::Font *font=style->get_font();
41 float font_size=font->get_default_size();
42 unsigned line_height=static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
43 unsigned line_spacing=line_height*6/5;
44 return line_height+(lines.size()-1)*line_spacing;
47 void Text::set(const string &t)
53 void Text::erase(unsigned pos, unsigned len)
57 vector<Line>::iterator i;
58 for(i=lines.begin(); (i!=lines.end() && i->start+i->length<pos); ++i) ;
60 if(pos+len>i->start+i->length)
66 for(++i; i!=lines.end(); ++i)
71 void Text::insert(unsigned pos, const string &s)
75 if(s.find('\n')!=string::npos)
79 vector<Line>::iterator i;
80 for(i=lines.begin(); (i!=lines.end() && i->start+i->length<pos); ++i) ;
84 for(++i; i!=lines.end(); ++i)
89 void Text::render(const Part &part, const Geometry &geom) const
94 const GL::Font *font=style->get_font();
95 float font_size=font->get_default_size();
96 unsigned line_height=static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
97 unsigned line_spacing=font_size*6/5;
98 unsigned height=line_height+(lines.size()-1)*line_spacing;
99 int y_offset=static_cast<int>(-font->get_descent()*font_size);
101 const GL::Color &color=style->get_font_color();
102 GL::Immediate imm((GL::COLOR4_UBYTE, GL::TEXCOORD2, GL::VERTEX2));
103 imm.color(color.r, color.g, color.b);
104 for(unsigned i=0; i<lines.size(); ++i)
106 const Line &line=lines[i];
111 rgeom.y=(lines.size()-1-i)*line_spacing+y_offset;
112 part.get_alignment().apply(rgeom, geom, part.get_margin());
115 GL::translate(rgeom.x, rgeom.y, 0);
116 GL::scale_uniform(font_size);
118 font->draw_string(text.substr(line.start, line.length), imm);
124 Text &Text::operator=(const string &t)
130 void Text::find_lines()
133 float font_size=style->get_font()->get_default_size();
134 string::size_type start=0;
137 string::size_type newline=text.find('\n', start);
141 line.length=(newline==string::npos ? text.size() : newline)-start;
142 line.width=static_cast<unsigned>(style->get_font()->get_string_width(text.substr(line.start, line.length))*font_size);
143 lines.push_back(line);
145 if(newline==string::npos)