diff options
Diffstat (limited to 'Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/libefont/findmet.cc')
-rw-r--r-- | Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/libefont/findmet.cc | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/libefont/findmet.cc b/Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/libefont/findmet.cc new file mode 100644 index 00000000000..aa5b8167156 --- /dev/null +++ b/Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/libefont/findmet.cc @@ -0,0 +1,321 @@ +// -*- related-file-name: "../include/efont/findmet.hh" -*- + +/* findmet.{cc,hh} -- find font metrics + * + * Copyright (c) 1998-2012 Eddie Kohler + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. This program is distributed in the hope that it will be + * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General + * Public License for more details. + */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif +#include <efont/findmet.hh> +#include <efont/afmparse.hh> +#include <efont/afm.hh> +#include <efont/amfm.hh> +#include <efont/psres.hh> +#include <string.h> +#include <stdlib.h> +namespace Efont { + +MetricsFinder::~MetricsFinder() +{ + if (_next) + _next->_prev = _prev; + if (_prev) + _prev->_next = _next; +} + +void +MetricsFinder::add_finder(MetricsFinder *new_finder) +{ + if (_next) + _next->add_finder(new_finder); + else { + assert(!new_finder->_prev); + new_finder->_prev = this; + _next = new_finder; + } +} + +Metrics * +MetricsFinder::find_metrics(PermString name, ErrorHandler *errh) +{ + MetricsFinder *f = this; + while (f) { + Metrics *m = f->find_metrics_x(name, this, errh); + if (m) return m; + f = f->_next; + } + return 0; +} + +AmfmMetrics * +MetricsFinder::find_amfm(PermString name, ErrorHandler *errh) +{ + MetricsFinder *f = this; + while (f) { + AmfmMetrics *m = f->find_amfm_x(name, this, errh); + if (m) return m; + f = f->_next; + } + return 0; +} + +void +MetricsFinder::record(Metrics *m) +{ + record(m, m->font_name()); +} + +void +MetricsFinder::record(Metrics *m, PermString name) +{ + if (_next) _next->record(m, name); +} + +void +MetricsFinder::record(AmfmMetrics *amfm) +{ + if (_next) _next->record(amfm); +} + +Metrics * +MetricsFinder::find_metrics_x(PermString, MetricsFinder *, ErrorHandler *) +{ + return 0; +} + +AmfmMetrics * +MetricsFinder::find_amfm_x(PermString, MetricsFinder *, ErrorHandler *) +{ + return 0; +} + +Metrics * +MetricsFinder::try_metrics_file(const Filename &fn, MetricsFinder *finder, + ErrorHandler *errh) +{ + if (fn.readable()) { + Metrics *afm = AfmReader::read(fn, errh); + if (afm) finder->record(afm); + return afm; + } else + return 0; +} + +AmfmMetrics * +MetricsFinder::try_amfm_file(const Filename &fn, MetricsFinder *finder, + ErrorHandler *errh) +{ + if (fn.readable()) { + AmfmMetrics *amfm = AmfmReader::read(fn, finder, errh); + if (amfm) finder->record(amfm); + return amfm; + } else + return 0; +} + + +/***** + * CacheMetricsFinder + **/ + +CacheMetricsFinder::CacheMetricsFinder() + : _metrics_map(-1), _amfm_map(-1) +{ +} + +CacheMetricsFinder::~CacheMetricsFinder() +{ + clear(); +} + +Metrics * +CacheMetricsFinder::find_metrics_x(PermString name, MetricsFinder *, + ErrorHandler *) +{ + int index = _metrics_map[name]; + return index >= 0 ? _metrics[index] : 0; +} + +AmfmMetrics * +CacheMetricsFinder::find_amfm_x(PermString name, MetricsFinder *, + ErrorHandler*) +{ + int index = _amfm_map[name]; + return index >= 0 ? _amfm[index] : 0; +} + + +void +CacheMetricsFinder::record(Metrics *m, PermString name) +{ + int index = _metrics.size(); + _metrics.push_back(m); + _metrics_map.insert(name, index); + m->use(); + MetricsFinder::record(m, name); +} + +void +CacheMetricsFinder::record(AmfmMetrics *amfm) +{ + int index = _amfm.size(); + _amfm.push_back(amfm); + _amfm_map.insert(amfm->font_name(), index); + amfm->use(); + MetricsFinder::record(amfm); +} + +void +CacheMetricsFinder::clear() +{ + for (int i = 0; i < _metrics.size(); i++) + _metrics[i]->unuse(); + for (int i = 0; i < _amfm.size(); i++) + _amfm[i]->unuse(); + _metrics.clear(); + _amfm.clear(); + _metrics_map.clear(); + _amfm_map.clear(); +} + + +/***** + * InstanceMetricsFinder + **/ + +InstanceMetricsFinder::InstanceMetricsFinder(bool call_mmpfb) + : _call_mmpfb(call_mmpfb) +{ +} + +Metrics * +InstanceMetricsFinder::find_metrics_instance(PermString name, + MetricsFinder *finder, ErrorHandler *errh) +{ + const char *underscore = strchr(name.c_str(), '_'); + PermString amfm_name = + PermString(name.c_str(), underscore - name.c_str()); + + AmfmMetrics *amfm = finder->find_amfm(amfm_name, errh); + if (!amfm) return 0; + + MultipleMasterSpace *mmspace = amfm->mmspace(); + if (!mmspace->check_intermediate() && _call_mmpfb) { + char *buf = new char[amfm->font_name().length() + 30]; + sprintf(buf, "mmpfb -q --amcp-info '%s'", amfm->font_name().c_str()); + + FILE *f = popen(buf, "r"); + if (f) { + Filename fake("<mmpfb output>"); + Slurper slurpy(fake, f); + AmfmReader::add_amcp_file(slurpy, amfm, errh); + pclose(f); + } + + delete[] buf; + } + + Vector<double> design = mmspace->default_design_vector(); + int i = 0; + while (underscore[0] == '_' && underscore[1]) { + double x = strtod(underscore + 1, const_cast<char **>(&underscore)); + mmspace->set_design(design, i, x, errh); + i++; + } + + Vector<double> weight; + if (!mmspace->design_to_weight(design, weight, errh)) + return 0; + Metrics *new_afm = amfm->interpolate(design, weight, errh); + if (new_afm) { + finder->record(new_afm); + // What if the dimensions changed because the user specified out-of-range + // dimens? We don't want to reinterpolate each time, so record the new + // AFM under that name as well. + if (new_afm->font_name() != name) + finder->record(new_afm, name); + } + return new_afm; +} + +Metrics * +InstanceMetricsFinder::find_metrics_x(PermString name, MetricsFinder *finder, + ErrorHandler *errh) +{ + if (strchr(name.c_str(), '_')) + return find_metrics_instance(name, finder, errh); + else + return 0; +} + + +/***** + * PsresMetricsFinder + **/ + +PsresMetricsFinder::PsresMetricsFinder(PsresDatabase *psres) + : _psres(psres) +{ +} + +Metrics * +PsresMetricsFinder::find_metrics_x(PermString name, MetricsFinder *finder, + ErrorHandler *errh) +{ + return try_metrics_file + (_psres->filename_value("FontAFM", name), finder, errh); +} + +AmfmMetrics * +PsresMetricsFinder::find_amfm_x(PermString name, MetricsFinder *finder, + ErrorHandler *errh) +{ + return try_amfm_file + (_psres->filename_value("FontAMFM", name), finder, errh); +} + + +/***** + * DirectoryMetricsFinder + **/ + +DirectoryMetricsFinder::DirectoryMetricsFinder(PermString d) + : _directory(d) +{ +} + +Metrics * +DirectoryMetricsFinder::find_metrics_x(PermString name, MetricsFinder *finder, + ErrorHandler *errh) +{ + Metrics *afm = try_metrics_file + (Filename(_directory, permcat(name, ".afm")), finder, errh); + if (!afm) + afm = try_metrics_file + (Filename(_directory, permcat(name, ".AFM")), finder, errh); + return afm; +} + +AmfmMetrics * +DirectoryMetricsFinder::find_amfm_x(PermString name, MetricsFinder *finder, + ErrorHandler *errh) +{ + AmfmMetrics *amfm = try_amfm_file + (Filename(_directory, permcat(name, ".amfm")), finder, errh); + if (!amfm) + amfm = try_amfm_file + (Filename(_directory, permcat(name, ".AMFM")), finder, errh); + return amfm; +} + +} |