X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftext.cpp;h=45b6567db5c640bcec37e0dfccee877323fde230;hb=8bc33895d1bb04adcefee405746ef3c21d99a66d;hp=08846a4c75acd587fa47bce8dd1b835cbd42e153;hpb=1aa6cd9b865e366737dcc9d2d36c4f8faed5bc4f;p=libs%2Fgltk.git diff --git a/source/text.cpp b/source/text.cpp index 08846a4..45b6567 100644 --- a/source/text.cpp +++ b/source/text.cpp @@ -66,6 +66,13 @@ unsigned Text::get_height() const 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; @@ -108,6 +115,23 @@ void Text::insert(unsigned pos, const string &s) } } +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((font.get_ascent()-font.get_descent())*font_size); + unsigned line_spacing = static_cast(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(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()) @@ -153,36 +177,29 @@ Geometry Text::coords_to_geometry(const Part &part, const Geometry &parent, unsi data.row = row; data.col = col; - process_lines(part, parent, first_row, data); + process_lines(part, parent, first_row, &Text::coords_to_geom_line, data); return data.result; } -void Text::build(const Part &part, const Geometry &parent, CachedPart &cache) const +void Text::build(const Part &part, State state, const Geometry &parent, PartCache &cache) const { - build(part, parent, 0, cache); + build(part, state, parent, 0, cache); } -void Text::build(const Part &part, const Geometry &parent, unsigned first_row, CachedPart &cache) const +void Text::build(const Part &part, State state, const Geometry &parent, unsigned first_row, PartCache &cache) const { if(!style || lines.empty()) - { - cache.texture = 0; return; - } - - cache.clear_mesh(); - GL::MeshBuilder bld(*cache.mesh); const GL::Font &font = style->get_font(); - bld.color(style->get_font_color()); + GL::MeshBuilder bld(cache.create_mesh(part, font.get_texture())); + bld.color(style->get_font_color(state)); RenderData data; data.bld = &bld; - cache.texture = &font.get_texture(); - - process_lines(part, parent, first_row, data); + process_lines(part, parent, first_row, &Text::build_line, data); } Text &Text::operator=(const string &t) @@ -217,22 +234,20 @@ void Text::find_lines() } } -template -void Text::process_lines(const Part &part, const Geometry &parent, unsigned first_row, T &data) const +template +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(); float font_size = style->get_font_size(); - unsigned line_height = static_cast((font.get_ascent()-font.get_descent())*font_size); unsigned line_spacing = static_cast(font_size*6/5); - unsigned height = line_height+(lines.size()-1)*line_spacing; int y_offset = static_cast(-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(first_row, lines.size()-n_lines); for(unsigned i=0; i