/*
- pango-font.cc -- implement Pango_font
+ pango-font.cc -- implement Pango_font
source file of the GNU LilyPond music typesetter
- (c) 2004 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
+ (c) 2004--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-
#define PANGO_ENABLE_BACKEND // ugh, why necessary?
-
#include <pango/pangoft2.h>
+/* Ugh. */
#include "pango-font.hh"
-#if HAVE_PANGO_FT2
-#include "stencil.hh"
+#include "dimensions.hh"
+#include "file-name.hh"
+#include "lookup.hh"
+#include "main.hh"
+#include "warn.hh"
+#if HAVE_PANGO_FT2
+#include "stencil.hh"
Pango_font::Pango_font (PangoFT2FontMap *fontmap,
- int resolution,
- Direction dir,
- PangoFontDescription *description)
+ PangoFontDescription *description,
+ Real output_scale)
{
- subfonts_ = SCM_EOL;
- PangoDirection pango_dir = (dir == RIGHT)
- ? PANGO_DIRECTION_LTR
- : PANGO_DIRECTION_RTL;
- context_ = pango_ft2_font_map_create_context (fontmap);
- attribute_list_= pango_attr_list_new();
- scale_ = 1.0 / (PANGO_SCALE * resolution * 72.27);
-
+ (void) fontmap;
+ physical_font_tab_ = scm_c_make_hash_table (11);
+ PangoDirection pango_dir = PANGO_DIRECTION_LTR;
+ context_
+ = pango_ft2_get_context (PANGO_RESOLUTION, PANGO_RESOLUTION);
+ // context_ = pango_ft2_font_map_create_context (fontmap);
+
+ pango_description_ = pango_font_description_copy (description);
+ attribute_list_ = pango_attr_list_new ();
+
+ /*
+ urgh. I don't understand this. Why isn't this 1/(scale *
+ resolution * output_scale)
+
+ --hwn
+ */
+ output_scale_ = output_scale;
+ scale_ = INCH_TO_BP / (Real (PANGO_SCALE) * Real (PANGO_RESOLUTION) * output_scale);
+
+ /*
+ ugh. Should make this configurable.
+ */
pango_context_set_language (context_, pango_language_from_string ("en_US"));
pango_context_set_base_dir (context_, pango_dir);
pango_context_set_font_description (context_, description);
Pango_font::~Pango_font ()
{
+ pango_font_description_free (pango_description_);
g_object_unref (context_);
pango_attr_list_unref (attribute_list_);
}
void
-Pango_font::register_font_file (String filename, String ps_name)
+Pango_font::register_font_file (String filename, String ps_name)
{
- subfonts_ = scm_cons (//scm_cons (scm_makfrom0str (ps_name.to_str0 ()),
- scm_makfrom0str (filename.to_str0 ()),
- subfonts_);
+ scm_hash_set_x (physical_font_tab_,
+ scm_makfrom0str (ps_name.to_str0 ()),
+ scm_makfrom0str (filename.to_str0 ()));
}
void
Pango_font::derived_mark () const
{
- scm_gc_mark (subfonts_);
+ scm_gc_mark (physical_font_tab_);
}
Stencil
-Pango_font::text_stencil (String str) const
+Pango_font::pango_item_string_stencil (PangoItem const *item, String str) const
{
- GList *items = pango_itemize (context_,
- str.to_str0 (),
- 0, str.length (), attribute_list_,
- NULL);
-
const int GLYPH_NAME_LEN = 256;
char glyph_name[GLYPH_NAME_LEN];
-
- GList *ptr = items;
- Stencil dest;
- while (ptr)
+ PangoAnalysis const *pa = &(item->analysis);
+ PangoGlyphString *pgs = pango_glyph_string_new ();
+
+ pango_shape (str.to_str0 () + item->offset,
+ item->length, (PangoAnalysis*) pa, pgs);
+
+ PangoRectangle logical_rect;
+ PangoRectangle ink_rect;
+ pango_glyph_string_extents (pgs, pa->font, &ink_rect, &logical_rect);
+
+ PangoFcFont *fcfont = G_TYPE_CHECK_INSTANCE_CAST (pa->font,
+ PANGO_TYPE_FC_FONT,
+ PangoFcFont);
+
+ FT_Face ftface = pango_fc_font_lock_face (fcfont);
+ Box b (Interval (PANGO_LBEARING (ink_rect),
+ PANGO_RBEARING (ink_rect)),
+ Interval (-PANGO_DESCENT (ink_rect),
+ PANGO_ASCENT (ink_rect)));
+
+ b.scale (scale_);
+
+ SCM glyph_exprs = SCM_EOL;
+ SCM *tail = &glyph_exprs;
+
+ bool cid_keyed = false;
+ for (int i = 0; i < pgs->num_glyphs; i++)
{
+ PangoGlyphInfo *pgi = pgs->glyphs + i;
- // FIXME: factor this out
- PangoItem *item = (PangoItem*) ptr->data;
- PangoAnalysis *pa = &(item->analysis);
- PangoGlyphString *pgs = pango_glyph_string_new ();
+ PangoGlyph pg = pgi->glyph;
+ PangoGlyphGeometry ggeo = pgi->geometry;
- pango_shape (str.to_str0 (), str.length (), pa, pgs);
+ FT_Get_Glyph_Name (ftface, pg, glyph_name, GLYPH_NAME_LEN);
- PangoRectangle logical_rect;
- pango_glyph_string_extents (pgs, pa->font, NULL, &logical_rect);
-
- PangoFcFont *fcfont = G_TYPE_CHECK_INSTANCE_CAST(pa->font,
- PANGO_TYPE_FC_FONT,
- PangoFcFont);
- FT_Face ftface = pango_fc_font_lock_face (fcfont);
- Box b (Interval (0, logical_rect.width),
- Interval (0, logical_rect.height));
-
- if (!face_)
+ SCM char_id;
+ if (glyph_name[0] == '\0')
{
- /* FIXME. This obvious shortcut apparently does not work.
- It seems there are different faces per text string and a
- map of face_ and charcode mapping is needed. */
- Pango_font *barf = (Pango_font*) this;
- barf->face_ = ftface;
- barf->index_to_charcode_map_ = make_index_to_charcode_map (face_);
+ /*
+ CID entry
+ */
+ cid_keyed = true;
+ char_id = scm_from_int (pg);
}
-
- b.translate (Offset (- logical_rect.x, -logical_rect.y));
+ else
+ char_id = scm_makfrom0str (glyph_name);
- b.scale (scale_);
+ *tail = scm_cons (scm_list_3 (scm_from_double (ggeo.x_offset * scale_),
+ scm_from_double (ggeo.y_offset * scale_),
+ char_id),
+ SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
- SCM glyph_exprs = SCM_EOL;
- SCM *tail = &glyph_exprs;
- for (int i = 0; i < pgs->num_glyphs; i++)
- {
- PangoGlyphInfo *pgi = pgs->glyphs + i;
-
- PangoGlyph pg = pgi->glyph;
- PangoGlyphGeometry ggeo = pgi->geometry;
-
- FT_Get_Glyph_Name (ftface, pg, glyph_name, GLYPH_NAME_LEN);
- *tail = scm_cons (scm_list_3 (scm_from_double (ggeo.x_offset * scale_),
- scm_from_double (ggeo.y_offset * scale_),
- scm_makfrom0str (glyph_name)),
- SCM_EOL);
- tail = SCM_CDRLOC (*tail);
- }
+ PangoFontDescription *descr = pango_font_describe (pa->font);
+ Real size = pango_font_description_get_size (descr)
+ / (Real (PANGO_SCALE));
- FcPattern *fcpat = fcfont->font_pattern;
- char *filename = 0;
- FcPatternGetString(fcpat, FC_FILE, 0, (FcChar8 **) &filename);
- char const *ps_name = FT_Get_Postscript_Name (ftface);
- ((Pango_font *) this)->register_font_file (filename, ps_name);
-
- SCM expr = scm_list_4 (ly_symbol2scm ("glyph-string"),
- self_scm (),
- scm_makfrom0str (ps_name),
- ly_quote_scm (glyph_exprs));
+ FcPattern *fcpat = fcfont->font_pattern;
+ char *file_name_as_ptr = 0;
+ FcPatternGetString (fcpat, FC_FILE, 0, (FcChar8 **) & file_name_as_ptr);
+
+ String file_name;
+ if (file_name_as_ptr)
+ {
+ /* Normalize file name. */
+ file_name = File_name (file_name_as_ptr).to_string ();
+ }
+
+ char const *ps_name_str0 = FT_Get_Postscript_Name (ftface);
- Stencil item_stencil (b, expr);
+ if (!ps_name_str0)
+ warning (_f ("no PostScript font name for font `%s'", file_name));
- dest.add_stencil (item_stencil);
-
+ String ps_name;
+ if (!ps_name_str0
+ && file_name != ""
+ && (file_name.index (".otf") >= 0
+ || file_name.index (".cff") >= 0))
+ {
+
+ /* UGH: kludge a PS name for OTF/CFF fonts. */
+ String name = file_name;
+ int idx = max (file_name.index (".otf"),
+ file_name.index (".cff"));
+
+ name = name.left_string (idx);
+
+ int slash_idx = name.index_last ('/');
+ if (slash_idx >= 0)
+ name = name.right_string (name.length () - slash_idx - 1);
+
+ String initial = name.cut_string (0, 1);
+ initial.to_upper ();
+ name = name.nomid_string (0, 1);
+ name.to_lower ();
+ ps_name = initial + name;
+ }
+ else if (ps_name_str0)
+ ps_name = ps_name_str0;
+
+ if (ps_name.length ())
+ {
+ ((Pango_font *) this)->register_font_file (file_name, ps_name);
pango_fc_font_unlock_face (fcfont);
- ptr = ptr->next;
+
+ SCM expr = scm_list_5 (ly_symbol2scm ("glyph-string"),
+ scm_makfrom0str (ps_name.to_str0 ()),
+ scm_from_double (size),
+ scm_from_bool (cid_keyed),
+ ly_quote_scm (glyph_exprs));
+
+ return Stencil (b, expr);
}
- return dest;
+ warning (_ ("FreeType face has no PostScript font name"));
+ return Stencil ();
}
SCM
-Pango_font::sub_fonts () const
+Pango_font::physical_font_tab () const
{
- return subfonts_;
+ return physical_font_tab_;
}
-SCM
-Pango_font::font_file_name () const
+Stencil
+Pango_font::text_stencil (String str) const
{
- return SCM_BOOL_F;
-}
+ GList *items
+ = pango_itemize (context_,
+ str.to_str0 (),
+ 0, str.length (), attribute_list_,
+ NULL);
-int
-Pango_font::name_to_index (String nm) const
-{
- char *nm_str = (char*) nm.to_str0 ();
- if (int idx = FT_Get_Name_Index (face_, nm_str))
- return idx;
- return -1;
-}
+ Stencil dest;
-unsigned
-Pango_font::index_to_charcode (int i) const
-{
- return ((Pango_font*) this)->index_to_charcode_map_[i];
+ Real last_x = 0.0;
+
+ Direction text_dir = RIGHT;
+ for (GList *p = items; p; p = p->next)
+ {
+ PangoItem *item = (PangoItem *) p->data;
+ if (item->analysis.level == PANGO_DIRECTION_RTL)
+ text_dir = LEFT;
+ }
+
+ for (GList *ptr = items; ptr; ptr = ptr->next)
+ {
+ PangoItem *item = (PangoItem *) ptr->data;
+
+ Stencil item_stencil = pango_item_string_stencil (item, str);
+
+ if (text_dir == RIGHT)
+ {
+ item_stencil.translate_axis (last_x, X_AXIS);
+ last_x = item_stencil.extent (X_AXIS)[RIGHT];
+ }
+ else if (text_dir == LEFT)
+ {
+ dest.translate_axis (item_stencil.extent (X_AXIS)[RIGHT], X_AXIS);
+ }
+
+#if 0 /* Check extents. */
+ if (!item_stencil.extent_box ()[X_AXIS].is_empty ())
+ {
+ Stencil frame = Lookup::frame (item_stencil.extent_box (), 0.1, 0.1);
+ Box empty;
+ empty.set_empty ();
+ Stencil dimless_frame (empty, frame.expr ());
+ dest.add_stencil (frame);
+ }
+#endif
+
+ dest.add_stencil (item_stencil);
+ }
+
+ /*
+ UGH. Should have flags per output format signifying supported
+ options.
+ */
+ if (output_backend_global != "ps"
+ && output_backend_global != "eps")
+ {
+ /*
+ For Pango based backends, we take a shortcut.
+ */
+ char *descr_string = pango_font_description_to_string (pango_description_);
+ SCM exp
+ = scm_list_3 (ly_symbol2scm ("utf-8-string"),
+ scm_makfrom0str (descr_string),
+ scm_makfrom0str (str.to_str0 ()));
+
+ g_free (descr_string);
+
+ Box b (Interval (0, 0), Interval (0, 0));
+ b.unite (dest.extent_box ());
+ return Stencil (b, exp);
+ }
+
+
+ return dest;
}
-LY_DEFINE (ly_pango_font_p, "ly:pango-font?",
- 1, 0, 0,
- (SCM f),
- "Is @var{f} a pango font?")
+SCM
+Pango_font::font_file_name () const
{
- return scm_from_bool (dynamic_cast<Pango_font*> (unsmob_metrics (f)));
+ return SCM_BOOL_F;
}
-
#endif
-
projects / lilypond.git / blobdiff