mirror of git://sigrok.org/pulseview
145 lines
3.8 KiB
C++
145 lines
3.8 KiB
C++
/*
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* This file is part of the PulseView project.
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*
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* Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libsigrokdecode/libsigrokdecode.h>
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#include "decoder.hpp"
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#include <boost/none_t.hpp>
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#include <pv/data/decode/decoder.hpp>
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#include <pv/data/decodesignal.hpp>
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#include <pv/prop/double.hpp>
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#include <pv/prop/enum.hpp>
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#include <pv/prop/int.hpp>
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#include <pv/prop/string.hpp>
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using boost::none;
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using std::map;
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using std::pair;
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using std::shared_ptr;
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using std::string;
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using std::vector;
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using pv::prop::Double;
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using pv::prop::Enum;
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using pv::prop::Int;
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using pv::prop::Property;
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using pv::prop::String;
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namespace pv {
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namespace binding {
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Decoder::Decoder(
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shared_ptr<pv::data::DecodeSignal> decode_signal,
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shared_ptr<data::decode::Decoder> decoder) :
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decode_signal_(decode_signal),
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decoder_(decoder)
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{
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assert(decoder_);
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const srd_decoder *const dec = decoder_->decoder();
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assert(dec);
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for (GSList *l = dec->options; l; l = l->next) {
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const srd_decoder_option *const opt =
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(srd_decoder_option*)l->data;
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const QString name = QString::fromUtf8(opt->desc);
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const Property::Getter get = [&, opt]() {
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return getter(opt->id); };
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const Property::Setter set = [&, opt](Glib::VariantBase value) {
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setter(opt->id, value); };
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shared_ptr<Property> prop;
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if (opt->values)
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prop = bind_enum(name, "", opt, get, set);
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else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("d")))
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prop = shared_ptr<Property>(new Double(name, "", 2, "",
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none, none, get, set));
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else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("x")))
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prop = shared_ptr<Property>(
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new Int(name, "", "", none, get, set));
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else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("s")))
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prop = shared_ptr<Property>(
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new String(name, "", get, set));
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else
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continue;
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properties_.push_back(prop);
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}
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}
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shared_ptr<Property> Decoder::bind_enum(
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const QString &name, const QString &desc,
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const srd_decoder_option *option,
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Property::Getter getter, Property::Setter setter)
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{
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vector< pair<Glib::VariantBase, QString> > values;
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for (GSList *l = option->values; l; l = l->next) {
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Glib::VariantBase var = Glib::VariantBase((GVariant*)l->data, true);
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values.emplace_back(var, print_gvariant(var));
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}
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return shared_ptr<Property>(new Enum(name, desc, values, getter, setter));
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}
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Glib::VariantBase Decoder::getter(const char *id)
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{
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GVariant *val = nullptr;
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assert(decoder_);
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// Get the value from the hash table if it is already present
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const map<string, GVariant*>& options = decoder_->options();
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const auto iter = options.find(id);
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if (iter != options.end())
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val = (*iter).second;
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else {
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assert(decoder_->decoder());
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// Get the default value if not
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for (GSList *l = decoder_->decoder()->options; l; l = l->next) {
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const srd_decoder_option *const opt =
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(srd_decoder_option*)l->data;
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if (strcmp(opt->id, id) == 0) {
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val = opt->def;
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break;
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}
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}
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}
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return (val) ? Glib::VariantBase(val, true) : Glib::VariantBase();
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}
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void Decoder::setter(const char *id, Glib::VariantBase value)
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{
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assert(decoder_);
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decoder_->set_option(id, value.gobj());
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assert(decode_signal_);
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decode_signal_->begin_decode();
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}
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} // namespace binding
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} // namespace pv
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