Make func a normal argument of Text::process_lines

[libs/gltk.git] / source / text.cpp

diff --git a/source/text.cpp b/source/text.cpp
index d80bd177126cbca14752ad65b262d3ac36bc340c..1d7a7930dc4bc58c695e8d2082fb5895e9598f66 100644 (file)
--- a/source/text.cpp
+++ b/source/text.cpp
@@ -1,6 +1,7 @@
-#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"
 
@@ -38,9 +39,10 @@ void Text::set_style(const Style *s)
 
        if(style)
        {
-               float font_size = style->get_font()->get_default_size();
+               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->length))*font_size);
        }
 }
 
@@ -57,13 +59,20 @@ unsigned Text::get_height() const
        if(!style)
                return lines.size();
 
-       const GL::Font *font = style->get_font();
-       float font_size = font->get_default_size();
-       unsigned line_height = static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
+       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 = 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;
@@ -151,27 +160,29 @@ Geometry Text::coords_to_geometry(const Part &part, const Geometry &parent, unsi
        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)
@@ -183,7 +194,7 @@ Text &Text::operator=(const string &t)
 void Text::find_lines()
 {
        lines.clear();
-       float font_size = (style ? style->get_font()->get_default_size() : 1);
+       float font_size = (style ? style->get_font_size() : 1);
        string::size_type start = 0;
        while(1)
        {
@@ -196,7 +207,7 @@ void Text::find_lines()
                if(style)
                {
                        string str = text.substr(line.start, line.length);
-                       line.width = static_cast<unsigned>(style->get_font()->get_string_width(str)*font_size);
+                       line.width = static_cast<unsigned>(style->get_font().get_string_width(str)*font_size);
                }
                lines.push_back(line);
 
@@ -206,22 +217,23 @@ void Text::find_lines()
        }
 }
 
-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
+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();
-       float font_size = font->get_default_size();
-       unsigned line_height = static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
+       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 = parent.h-margin.top-margin.bottom+line_spacing-line_height;
+       unsigned n_lines = min<unsigned>(lines.size(), max(fit_height/line_spacing, 1U));
+       first_row = min<unsigned>(first_row, lines.size()-n_lines);
 
        for(unsigned i=0; i<n_lines; ++i)
        {
@@ -237,27 +249,24 @@ void Text::process_lines(const Part &part, const Geometry &parent, unsigned firs
        }
 }
 
-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(font->get_default_size());
+       GL::MatrixStack::Push _pushm(data.bld->matrix());
+       data.bld->matrix() *= GL::Matrix::translation(rgeom.x, rgeom.y, 0);
+       data.bld->matrix() *= 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.length), *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();
-
+               float w = style->get_font().get_string_width(text.substr(lines[i].start, data.col));
                data.result = rgeom;
-               data.result.x += static_cast<unsigned>(font->get_string_width(text.substr(line.start, data.col))*font->get_default_size());
+               data.result.x += static_cast<unsigned>(w*style->get_font_size());
        }
 }