diff --git a/src/HTMLRenderer/font.cc b/src/HTMLRenderer/font.cc
index 79da04f..9b077fa 100644
--- a/src/HTMLRenderer/font.cc
+++ b/src/HTMLRenderer/font.cc
@@ -58,6 +58,7 @@ string HTMLRenderer::dump_embedded_font (GfxFont * font, FontInfo & info)
string filepath;
long long fn_id = info.id;
+ info.font_size_scale = 1.0;
try
{
@@ -195,13 +196,17 @@ string HTMLRenderer::dump_type3_font (GfxFont * font, FontInfo & info)
auto * cur_font = font_engine.getFont(font, cur_doc, true, xref);
auto used_map = preprocessor.get_code_map(hash_ref(font->getID()));
+ //calculate transformed metrics
double * font_bbox = font->getFontBBox();
// TODO: font matrix may not exists
double * font_matrix = font->getFontMatrix();
-
- //calculate transformations
double transformed_bbox[4];
memcpy(transformed_bbox, font_bbox, 4 * sizeof(double));
+ // add the origin to the bbox
+ if(transformed_bbox[0] > 0) transformed_bbox[0] = 0;
+ if(transformed_bbox[1] > 0) transformed_bbox[1] = 0;
+ if(transformed_bbox[2] < 0) transformed_bbox[2] = 0;
+ if(transformed_bbox[3] < 0) transformed_bbox[3] = 0;
tm_transform_bbox(font_matrix, transformed_bbox);
double transformed_bbox_width = transformed_bbox[2] - transformed_bbox[0];
double transformed_bbox_height = transformed_bbox[3] - transformed_bbox[1];
@@ -212,10 +217,10 @@ string HTMLRenderer::dump_type3_font (GfxFont * font, FontInfo & info)
std::cerr << std::endl;
// we want the glyphs is rendered in a box of size around 100 x 100
// for rectangles, the longer edge should be 100
- info.type3_font_size_scale = std::max(transformed_bbox_width, transformed_bbox_height);
+ info.font_size_scale = std::max(transformed_bbox_width, transformed_bbox_height);
const double GLYPH_DUMP_SIZE = 100.0;
- double scale = GLYPH_DUMP_SIZE / info.type3_font_size_scale;
+ double scale = GLYPH_DUMP_SIZE / info.font_size_scale;
// determine the position of the origin of the glyph
double ox, oy;
@@ -224,9 +229,11 @@ string HTMLRenderer::dump_type3_font (GfxFont * font, FontInfo & info)
ox -= transformed_bbox[0];
oy -= transformed_bbox[1];
-
- // dump each glyph into svg and combine them
+ // we choose ttf as it does not use char names
+ // or actually we don't use char names for ttf (see embed_font)
ffw_new_font();
+ ffw_set_metric(transformed_bbox[3] / transformed_bbox_height, transformed_bbox[1] / transformed_bbox_height);
+ // dump each glyph into svg and combine them
for(int code = 0; code < 256; ++code)
{
if(!used_map[code]) continue;
@@ -331,8 +338,6 @@ string HTMLRenderer::dump_type3_font (GfxFont * font, FontInfo & info)
ffw_import_svg_glyph(code, glyph_filename.c_str());
}
- // we choose ttf as it does not use char names
- // or actually we don't use char names for ttf (see embed_font)
string font_filename = (char*)str_fmt("%s/f%llx.ttf", param.tmp_dir.c_str(), fn_id);
tmp_files.add(font_filename);
ffw_save(font_filename.c_str());
@@ -400,7 +405,8 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
if(get_metric_only)
{
- ffw_metric(&info.ascent, &info.descent);
+ ffw_fix_metric();
+ ffw_get_metric(&info.ascent, &info.descent);
ffw_close();
return;
}
@@ -647,8 +653,7 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
cur_width = font_cid->getWidth(buf, 2) ;
}
- if(info.is_type3)
- cur_width /= info.type3_font_size_scale;
+ cur_width /= info.font_size_scale;
if(u == ' ')
{
@@ -693,8 +698,7 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
char buf[2] = {0, ' '};
info.space_width = font_cid->getWidth(buf, 2);
}
- if(info.is_type3)
- info.space_width /= info.type3_font_size_scale;
+ info.space_width /= info.font_size_scale;
/* See comments above */
if(equal(info.space_width,0))
@@ -777,7 +781,8 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
tmp_files.add(fn);
ffw_load_font(cur_tmp_fn.c_str());
- ffw_metric(&info.ascent, &info.descent);
+ ffw_fix_metric();
+ ffw_get_metric(&info.ascent, &info.descent);
if(param.override_fstype)
ffw_override_fstype();
ffw_save(fn.c_str());
diff --git a/src/HTMLRenderer/state.cc b/src/HTMLRenderer/state.cc
index 813b5ca..9309b24 100644
--- a/src/HTMLRenderer/state.cc
+++ b/src/HTMLRenderer/state.cc
@@ -274,11 +274,6 @@ void HTMLRenderer::check_state_change(GfxState * state)
double new_draw_font_size = cur_font_size;
- if(cur_text_state.font_info->is_type3 && param.process_type3)
- {
- new_draw_font_size *= cur_text_state.font_info->type3_font_size_scale;
- }
-
if(is_positive(new_draw_text_scale))
{
// scale both font size and matrix
diff --git a/src/HTMLState.h b/src/HTMLState.h
index 853a300..b8a470b 100644
--- a/src/HTMLState.h
+++ b/src/HTMLState.h
@@ -26,9 +26,11 @@ struct FontInfo
* we have to scale the font to about 1,
* then apply the scaling when using the font
*
- * The scaling factor is stored as type3_font_size_scale
+ * The scaling factor is stored as font_size_scale
+ *
+ * The value is 1 for other fonts
*/
- double type3_font_size_scale;
+ double font_size_scale;
};
struct HTMLTextState
diff --git a/src/HTMLTextLine.cc b/src/HTMLTextLine.cc
index d37269c..5a0ab2d 100644
--- a/src/HTMLTextLine.cc
+++ b/src/HTMLTextLine.cc
@@ -60,7 +60,10 @@ void HTMLTextLine::append_state(const HTMLTextState & text_state)
states.back().hash_umask = 0;
}
- (HTMLTextState&)(states.back()) = text_state;
+ HTMLTextState & last_state = states.back();
+ last_state = text_state;
+ //apply font scale
+ last_state.font_size *= last_state.font_info->font_size_scale;
}
void HTMLTextLine::dump_text(ostream & out)
@@ -251,7 +254,8 @@ void HTMLTextLine::prepare(void)
// note that vertical_align cannot be calculated here
for(auto iter = states.begin(); iter != states.end(); ++iter)
{
- iter->ids[State::FONT_ID] = iter->font_info->id;
+ auto font_info = iter->font_info;
+ iter->ids[State::FONT_ID] = font_info->id;
iter->ids[State::FONT_SIZE_ID] = all_manager.font_size.install(iter->font_size);
iter->ids[State::FILL_COLOR_ID] = all_manager.fill_color.install(iter->fill_color);
iter->ids[State::STROKE_COLOR_ID] = all_manager.stroke_color.install(iter->stroke_color);
@@ -260,10 +264,10 @@ void HTMLTextLine::prepare(void)
iter->hash();
accum_vertical_align += iter->vertical_align;
- double cur_ascent = accum_vertical_align + iter->font_info->ascent * iter->font_size;
+ double cur_ascent = accum_vertical_align + font_info->ascent * iter->font_size;
if(cur_ascent > ascent)
ascent = cur_ascent;
- double cur_descent = accum_vertical_align + iter->font_info->descent * iter->font_size;
+ double cur_descent = accum_vertical_align + font_info->descent * iter->font_size;
if(cur_descent < descent)
descent = cur_descent;
}
diff --git a/src/util/ffw.c b/src/util/ffw.c
index b16a126..b2d9eb6 100644
--- a/src/util/ffw.c
+++ b/src/util/ffw.c
@@ -302,29 +302,22 @@ int ffw_get_em_size(void)
return cur_fv->sf->ascent + cur_fv->sf->descent;
}
-void ffw_metric(double * ascent, double * descent)
+void ffw_fix_metric()
+{
+ double ascent, descent;
+ ffw_get_metric(&ascent, &descent);
+ //debug
+ printf("fix metrix: %lf %lf\n", ascent, descent);
+ ffw_set_metric(ascent, descent);
+}
+
+void ffw_get_metric(double * ascent, double * descent)
{
SplineFont * sf = cur_fv->sf;
- struct pfminfo * info = &sf->pfminfo;
-
- SFDefaultOS2Info(info, sf, sf->fontname);
- info->pfmset = 1;
- sf->changed = 1;
DBounds bb;
SplineFontFindBounds(sf, &bb);
- /*
- printf("bb %lf %lf\n", bb.maxy, bb.miny);
- printf("_ %d %d\n", sf->ascent, sf->descent);
- printf("win %d %d\n", info->os2_winascent, info->os2_windescent);
- printf("%d %d\n", info->winascent_add, info->windescent_add);
- printf("typo %d %d\n", info->os2_typoascent, info->os2_typodescent);
- printf("%d %d\n", info->typoascent_add, info->typodescent_add);
- printf("hhead %d %d\n", info->hhead_ascent, info->hhead_descent);
- printf("%d %d\n", info->hheadascent_add, info->hheaddescent_add);
- */
-
int em = sf->ascent + sf->descent;
if (em > 0)
@@ -336,10 +329,21 @@ void ffw_metric(double * ascent, double * descent)
{
*ascent = *descent = 0;
}
+}
+
+void ffw_set_metric(double ascent, double descent)
+{
+ SplineFont * sf = cur_fv->sf;
+ struct pfminfo * info = &sf->pfminfo;
+
+ SFDefaultOS2Info(info, sf, sf->fontname);
+ info->pfmset = 1;
+ sf->changed = 1;
+
+ int em = sf->ascent + sf->descent;
+ int a = floor(ascent * em + 0.5);
+ int d = floor(descent * em + 0.5);
- int a = floor(bb.maxy + 0.5);
- int d = floor(bb.miny + 0.5);
-
if(a < 0) a = 0;
if(d > 0) d = 0;
@@ -354,7 +358,6 @@ void ffw_metric(double * ascent, double * descent)
* But have to unify them, for different browsers on different platforms
* Things may become easier when there are CSS rules for baseline-based positioning.
*/
-
info->os2_winascent = a;
info->os2_typoascent = a;
info->hhead_ascent = a;
@@ -430,13 +433,23 @@ void ffw_import_svg_glyph(int code, const char * filename)
if(enc == -1)
return;
- SFMakeChar(cur_fv->sf, cur_fv->map, enc);
+ SplineChar * sc = SFMakeChar(cur_fv->sf, cur_fv->map, enc);
memset(cur_fv->selected, 0, cur_fv->map->enccount);
cur_fv->selected[enc] = 1;
int ok = FVImportImages(cur_fv, (char*)filename, fv_svg, 0, -1);
if(!ok)
err("Import SVG glyph failed");
+
+ // correct the origin
+ {
+ real transform[6];
+ transform[0] = 1.0;
+ transform[3] = 1.0;
+ transform[1] = transform[2] = transform[4];
+ transform[5] = cur_fv->sf->descent;
+ FVTrans(cur_fv, sc, transform, NULL, fvt_alllayers | fvt_dontmovewidth);
+ }
}
void ffw_auto_hint(void)
diff --git a/src/util/ffw.h b/src/util/ffw.h
index ebd5378..b66c24b 100644
--- a/src/util/ffw.h
+++ b/src/util/ffw.h
@@ -48,8 +48,14 @@ void ffw_add_empty_char(int32_t unicode, int width);
////////////////////////
// metrics
int ffw_get_em_size(void);
-// fix metrics and get them
-void ffw_metric(double * ascent, double * descent);
+// manipulate ascent and descent
+// asscent is between 0 and 1
+// descent is between -1 and 0
+void ffw_fix_metric();
+// get ascent/descent based on the shape
+void ffw_get_metric(double * ascent, double * descent);
+// set corresponding fields
+void ffw_set_metric(double ascent, double descent);
void ffw_set_widths(int * width_list, int mapping_len,
int stretch_narrow, int squeeze_wide);