-#include <msp/gl/immediate.h>
#include <msp/gl/matrix.h>
+#include <msp/gl/meshbuilder.h>
#include <msp/gl/texture2d.h>
+#include "partcache.h"
#include "style.h"
#include "text.h"
Text::Text():
style(0)
-{ }
+{
+ Line line;
+ line.start = 0;
+ line.bytes = 0;
+ line.length = 0;
+ line.width = 0;
+ lines.push_back(line);
+}
Text::Text(const Style &s, const string &t):
style(&s)
if(style)
{
+ const GL::Font &font = style->get_font();
float font_size = style->get_font_size();
for(vector<Line>::iterator i=lines.begin(); i!=lines.end(); ++i)
- i->width = static_cast<unsigned>(style->get_font()->get_string_width(text.substr(i->start, i->length))*font_size);
+ i->width = static_cast<unsigned>(font.get_string_width(text.substr(i->start, i->bytes))*font_size);
}
}
if(!style)
return lines.size();
- const GL::Font *font = style->get_font();
+ const GL::Font &font = style->get_font();
float font_size = style->get_font_size();
- unsigned line_height = static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
+ unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font_size);
unsigned line_spacing = line_height*6/5;
return line_height+(lines.size()-1)*line_spacing;
}
+void Text::autosize(const Part &part, Geometry &geom) const
+{
+ const Sides &margin = part.get_margin();
+ geom.w = max(geom.w, get_width()+margin.left+margin.right);
+ geom.h = max(geom.h, get_height()+margin.top+margin.bottom);
+}
+
void Text::set(const string &t)
{
text = t;
void Text::erase(unsigned pos, unsigned len)
{
+ check_alignment(pos);
+ check_alignment(pos+len);
text.erase(pos, len);
vector<Line>::iterator i;
- for(i=lines.begin(); (i!=lines.end() && i->start+i->
length<pos); ++i) ;
+ for(i=lines.begin(); (i!=lines.end() && i->start+i->
bytes<pos); ++i) ;
- if(pos+len>i->start+i->length)
+ if(pos+len>i->start+i->bytes)
find_lines();
else
{
- i->length -= len;
+ i->bytes -= len;
+ i->length = count_characters(i->start, i->bytes);
for(++i; i!=lines.end(); ++i)
i->start -= len;
void Text::insert(unsigned pos, const string &s)
{
+ check_alignment(pos);
text.insert(pos, s);
if(s.find('\n')!=string::npos)
else
{
vector<Line>::iterator i;
- for(i=lines.begin(); (i!=lines.end() && i->start+i->
length<pos); ++i) ;
+ for(i=lines.begin(); (i!=lines.end() && i->start+i->
bytes<pos); ++i) ;
- i->length += s.size();
+ i->bytes += s.size();
+ i->length = count_characters(i->start, i->bytes);
for(++i; i!=lines.end(); ++i)
i->start += s.size();
}
}
+unsigned Text::get_visible_lines(const Part &part, const Geometry &parent, unsigned *fit_height) const
+{
+ const GL::Font &font = style->get_font();
+ float font_size = style->get_font_size();
+ unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font_size);
+ unsigned line_spacing = static_cast<unsigned>(font_size*6/5);
+
+ const Sides &margin = part.get_margin();
+ unsigned vmargin = margin.top+margin.bottom;
+ unsigned free_height = max(parent.h, vmargin)-vmargin+line_spacing-line_height;
+ unsigned n_lines = min<unsigned>(lines.size(), max(free_height/line_spacing, 1U));
+ if(fit_height)
+ *fit_height = line_height+(n_lines-1)*line_spacing;
+
+ return n_lines;
+}
+
unsigned Text::get_line_length(unsigned i) const
{
if(i>=lines.size())
return lines[i].length;
}
+unsigned Text::move_offset(unsigned offs, int change) const
+{
+ check_alignment(offs);
+ if(!change)
+ return offs;
+
+ StringCodec::Utf8::Decoder dec(StringCodec::IGNORE_ERRORS);
+ string::const_iterator i = text.begin()+offs;
+ if(change>0)
+ {
+ for(; change>0; --change)
+ dec.decode_char(text, i);
+ }
+ else
+ {
+ while(change<0 && i!=text.begin())
+ {
+ --i;
+ string::const_iterator j = i;
+ if(dec.decode_char(text, j)!=-1)
+ ++change;
+ }
+ }
+ return i-text.begin();
+}
+
void Text::offset_to_coords(unsigned offs, unsigned &row, unsigned &col) const
{
if(lines.empty())
}
for(unsigned i=0; i<lines.size(); ++i)
- if(offs>=lines[i].start && offs<=lines[i].start+lines[i].length)
+ if(offs>=lines[i].start && offs<=lines[i].start+lines[i].bytes)
{
row = i;
- col = offs-lines[i].start;
+ if(lines[i].length==lines[i].bytes)
+ col = offs-lines[i].start;
+ else
+ col = count_characters(lines[i].start, offs-lines[i].start);
return;
}
}
{
if(row>=lines.size())
return text.size();
+ const Line &line = lines[row];
+ if(col>line.length)
+ col = line.length;
- return lines[row].start+min(col, lines[row].length);
+ if(line.length==line.bytes)
+ return line.start+col;
+ else
+ {
+ StringCodec::Utf8::Decoder dec;
+ string::const_iterator i = text.begin()+line.start;
+ for(col=min(col, line.length); col; --col)
+ dec.decode_char(text, i);
+ return i-text.begin();
+ }
}
Geometry Text::coords_to_geometry(const Part &part, const Geometry &parent, unsigned first_row, unsigned row, unsigned col) const
data.row = row;
data.col = col;
- process_lines<CoordsToGeomData, &Text::coords_to_geom_line>(part, parent, first_row, data);
+ process_lines(part, parent, first_row, &Text::coords_to_geom_line, data);
return data.result;
}
-void Text::render(const Part &part, const Geometry &parent, unsigned first_row) const
+void Text::build(const Part &part, State state, const Geometry &parent, PartCache &cache) const
+{
+ build(part, state, parent, 0, cache);
+}
+
+void Text::build(const Part &part, State state, const Geometry &parent, unsigned first_row, PartCache &cache) const
{
if(!style || lines.empty())
return;
- const GL::Font *font = style->get_font();
- const GL::Color &color = style->get_font_color();
- GL::Immediate imm((GL::COLOR4_UBYTE, GL::TEXCOORD2, GL::VERTEX2));
- imm.color(color.r, color.g, color.b);
+ const GL::Font &font = style->get_font();
+ GL::MeshBuilder bld(cache.create_mesh(part, font.get_texture()));
+ bld.color(style->get_font_color(state));
RenderData data;
- data.bld = &imm;
+ data.bld = &bld;
- GL::Bind bind_tex(font->get_texture());
-
- process_lines<RenderData, &Text::render_line>(part, parent, first_row, data);
+ process_lines(part, parent, first_row, &Text::build_line, data);
}
Text &Text::operator=(const string &t)
Line line;
line.start = start;
- line.length = (newline==string::npos ? text.size() : newline)-start;
+ line.bytes = (newline==string::npos ? text.size() : newline)-start;
+ line.length = count_characters(line.start, line.bytes);
line.width = line.length;
if(style)
{
- string str = text.substr(line.start, line.length);
- line.width = static_cast<unsigned>(style->get_font()->get_string_width(str)*font_size);
+ string str = text.substr(line.start, line.bytes);
+ line.width = static_cast<unsigned>(style->get_font().get_string_width(str)*font_size);
}
lines.push_back(line);
}
}
-template<typename T, void (Text::*func)(unsigned, const Geometry &, T &) const>
-void Text::process_lines(const Part &part, const Geometry &parent, unsigned first_row, T &data) const
+unsigned Text::count_characters(unsigned start, unsigned bytes) const
+{
+ StringCodec::Utf8::Decoder dec;
+ string::const_iterator i = text.begin()+start;
+ string::const_iterator end = i+bytes;
+ unsigned count = 0;
+ for(; i<end; dec.decode_char(text, i))
+ ++count;
+ return count;
+}
+
+void Text::check_alignment(unsigned offs) const
+{
+ StringCodec::Utf8::Decoder dec;
+ string::const_iterator i = text.begin()+offs;
+ dec.decode_char(text, i);
+}
+
+template<typename T>
+void Text::process_lines(const Part &part, const Geometry &parent, unsigned first_row, void (Text::*func)(unsigned, const Geometry &, T &) const, T &data) const
{
if(!style)
return;
- const GL::Font *font = style->get_font();
+ const GL::Font &font = style->get_font();
float font_size = style->get_font_size();
- unsigned line_height = static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
unsigned line_spacing = static_cast<unsigned>(font_size*6/5);
- unsigned height = line_height+(lines.size()-1)*line_spacing;
- int y_offset = static_cast<int>(-font->get_descent()*font_size);
+ int y_offset = static_cast<int>(-font.get_descent()*font_size);
- const Sides &margin = part.get_margin();
- unsigned n_lines = min(lines.size(), max((parent.h-margin.top-margin.bottom)/line_spacing, 1U));
- first_row = min(first_row, lines.size()-n_lines);
+ unsigned fit_height;
+ unsigned n_lines = get_visible_lines(part, parent, &fit_height);
+ first_row = min<unsigned>(first_row, lines.size()-n_lines);
for(unsigned i=0; i<n_lines; ++i)
{
Geometry rgeom;
rgeom.w = line.width;
- rgeom.h = height;
+ rgeom.h = fit_height;
rgeom.y = (n_lines-1-i)*line_spacing+y_offset;
part.get_alignment().apply(rgeom, parent, part.get_margin());
}
}
-void Text::render_line(unsigned i, const Geometry &rgeom, RenderData &data) const
+void Text::build_line(unsigned i, const Geometry &rgeom, RenderData &data) const
{
const Line &line = lines[i];
- const GL::Font *font = style->get_font();
- GL::PushMatrix _pushm;
- GL::translate(rgeom.x, rgeom.y, 0);
- GL::scale_uniform(style->get_font_size());
+ GL::VertexBuilder::PushMatrix _pushm(*data.bld);
+ data.bld->transform(GL::Matrix::translation(rgeom.x, rgeom.y, 0));
+ data.bld->transform(GL::Matrix::scaling(style->get_font_size()));
- font->build_string(text.substr(line.start, line.length), *data.bld);
+ style->get_font().build_string(text.substr(line.start, line.bytes), *data.bld);
}
void Text::coords_to_geom_line(unsigned i, const Geometry &rgeom, CoordsToGeomData &data) const
{
if(i==data.row)
{
- const Line &line = lines[i];
- const GL::Font *font = style->get_font();
-
+ string::const_iterator begin = text.begin()+lines[i].start;
+ string::const_iterator j = begin;
+ if(lines[i].length==lines[i].bytes)
+ j += data.col;
+ else
+ {
+ StringCodec::Utf8::Decoder dec;
+ for(unsigned c=data.col; c; --c)
+ dec.decode_char(text, j);
+ }
+ float w = style->get_font().get_string_width(string(begin, j));
data.result = rgeom;
- data.result.x += static_cast<unsigned>(font->get_string_width(text.substr(line.start, data.col))*style->get_font_size());
+ data.result.x += static_cast<unsigned>(w*style->get_font_size());
}
}
projects / libs / gltk.git / blobdiff