sij/mapnik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fix char_height zero

Browse source
This commit is contained in:
Mike Morris 2014-06-12 19:10:18 -04:00
parent 38966674f1
commit a99905cff5
6 changed files with 10 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/mapnik/text/dummy_shaper.hpp
View file

@ -82,7 +82,7 @@ static void shape_text(text_line & line,
width_map[i] += tmp.advance();
line.add_glyph(tmp, scale_factor);
}
line.update_max_char_height(face->get_char_height());
line.update_max_char_height(face->get_char_height(size));
}
}

2
include/mapnik/text/face.hpp
View file

@ -64,7 +64,7 @@ public:
return face_;
}
double get_char_height() const;
double get_char_height(double size) const;
bool set_character_sizes(double size);
bool set_unscaled_character_sizes();

6
include/mapnik/text/glyph_info.hpp
View file

@ -49,7 +49,7 @@ struct glyph_info
unscaled_ymax(0.0),
unscaled_advance(0.0),
unscaled_line_height(0.0),
scale_multiplier(0.0),
scale_multiplier(1.0),
offset(),
format() {}
glyph_index_t glyph_index;
@ -68,8 +68,8 @@ struct glyph_info
pixel_position offset;
char_properties_ptr format;
double ymin() const { return floor(unscaled_ymin * scale_multiplier / y_scale); }
double ymax() const { return ceil(unscaled_ymax * scale_multiplier / y_scale); }
double ymin() const { return floor(unscaled_ymin * 64.0 * scale_multiplier / y_scale); }
double ymax() const { return ceil(unscaled_ymax * 64.0 * scale_multiplier / y_scale); }
double height() const { return ymax() - ymin(); };
double advance() const { return floor(unscaled_advance * scale_multiplier / x_scale); };
double line_height() const { return floor(unscaled_line_height * scale_multiplier / y_scale); };

5
include/mapnik/text/harfbuzz_shaper.hpp
View file

@ -110,14 +110,11 @@ static void shape_text(text_line & line,
//Overwrite default advance with better value provided by HarfBuzz
tmp.unscaled_advance = positions[i].x_advance * tmp.x_scale;
std::cerr << tmp.line_height() << ' ' <<
tmp.advance() << '\n';
tmp.offset.set(positions[i].x_offset * tmp.scale_multiplier, positions[i].y_offset * tmp.scale_multiplier);
width_map[glyphs[i].cluster] += tmp.advance();
line.add_glyph(tmp, scale_factor);
}
line.update_max_char_height(face->get_char_height());
line.update_max_char_height(face->get_char_height(size));
break; //When we reach this point the current font had all glyphs.
}
}

2
include/mapnik/text/icu_shaper.hpp
View file

@ -112,7 +112,7 @@ static void shape_text(text_line & line,
}
}
if (!shaped_status) continue;
line.update_max_char_height(face->get_char_height());
line.update_max_char_height(face->get_char_height(size));
return;
}
}

5
src/text/face.cpp
View file

@ -36,12 +36,13 @@ font_face::font_face(FT_Face face)
{
}
double font_face::get_char_height() const
double font_face::get_char_height(double size) const
{
if (char_height_ != 0.0) return char_height_;
glyph_info tmp;
tmp.glyph_index = FT_Get_Char_Index(face_, 'X');
glyph_dimensions(tmp);
tmp.scale_multiplier = size / face_->units_per_EM;
char_height_ = tmp.height();
return char_height_;
}
@ -96,7 +97,7 @@ void font_face::glyph_dimensions(glyph_info & glyph) const
glyph.unscaled_ymin = glyph_bbox.yMin * glyph.y_scale;
glyph.unscaled_ymax = glyph_bbox.yMax * glyph.y_scale;
glyph.unscaled_advance = face_->glyph->metrics.horiAdvance * glyph.x_scale;
glyph.unscaled_advance = face_->glyph->advance.x * glyph.x_scale;
glyph.unscaled_line_height = face_->size->metrics.height * glyph.y_scale;
//TODO: dimension_cache_.insert(std::pair<unsigned, char_info>(c, dim));