X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fbinding%2Fdecoder.cpp;fp=pv%2Fbinding%2Fdecoder.cpp;h=dd5716027aeb492d47ab298c3f506f7f028148cc;hb=3cc9ad7b867853315473df611612c562d562ed8a;hp=0000000000000000000000000000000000000000;hpb=61703a0124c7ace84caf415f7d491a3ad6f42599;p=pulseview.git

diff --git a/pv/binding/decoder.cpp b/pv/binding/decoder.cpp
new file mode 100644
index 0000000..dd57160
--- /dev/null
+++ b/pv/binding/decoder.cpp
@@ -0,0 +1,151 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <libsigrokdecode/libsigrokdecode.h>
+
+#include "decoder.hpp"
+
+#include <boost/none_t.hpp>
+
+#include <pv/data/decoderstack.hpp>
+#include <pv/data/decode/decoder.hpp>
+#include <pv/prop/double.hpp>
+#include <pv/prop/enum.hpp>
+#include <pv/prop/int.hpp>
+#include <pv/prop/string.hpp>
+
+using boost::none;
+using std::make_pair;
+using std::map;
+using std::pair;
+using std::shared_ptr;
+using std::string;
+using std::vector;
+
+using pv::prop::Double;
+using pv::prop::Enum;
+using pv::prop::Int;
+using pv::prop::Property;
+using pv::prop::String;
+
+namespace pv {
+namespace binding {
+
+Decoder::Decoder(
+	shared_ptr<pv::data::DecoderStack> decoder_stack,
+	shared_ptr<data::decode::Decoder> decoder) :
+	decoder_stack_(decoder_stack),
+	decoder_(decoder)
+{
+	assert(decoder_);
+
+	const srd_decoder *const dec = decoder_->decoder();
+	assert(dec);
+
+	for (GSList *l = dec->options; l; l = l->next)
+	{
+		const srd_decoder_option *const opt =
+			(srd_decoder_option*)l->data;
+
+		const QString name = QString::fromUtf8(opt->desc);
+
+		const Property::Getter get = [&, opt]() {
+			return getter(opt->id); };
+		const Property::Setter set = [&, opt](Glib::VariantBase value) {
+			setter(opt->id, value); };
+
+		shared_ptr<Property> prop;
+
+		if (opt->values)
+			prop = bind_enum(name, opt, get, set);
+		else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("d")))
+			prop = shared_ptr<Property>(new Double(name, 2, "",
+				none, none, get, set));
+		else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("x")))
+			prop = shared_ptr<Property>(
+				new Int(name, "", none, get, set));
+		else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("s")))
+			prop = shared_ptr<Property>(
+				new String(name, get, set));
+		else
+			continue;
+
+		properties_.push_back(prop);
+	}
+}
+
+shared_ptr<Property> Decoder::bind_enum(
+	const QString &name, const srd_decoder_option *option,
+	Property::Getter getter, Property::Setter setter)
+{
+	vector< pair<Glib::VariantBase, QString> > values;
+	for (GSList *l = option->values; l; l = l->next) {
+		Glib::VariantBase var = Glib::VariantBase((GVariant*)l->data, true);
+		values.push_back(make_pair(var, print_gvariant(var)));
+	}
+
+	return shared_ptr<Property>(new Enum(name, values, getter, setter));
+}
+
+Glib::VariantBase Decoder::getter(const char *id)
+{
+	GVariant *val = NULL;
+
+	assert(decoder_);
+
+	// Get the value from the hash table if it is already present
+	const map<string, GVariant*>& options = decoder_->options();
+	const auto iter = options.find(id);
+
+	if (iter != options.end())
+		val = (*iter).second;
+	else
+	{
+		assert(decoder_->decoder());
+
+		// Get the default value if not
+		for (GSList *l = decoder_->decoder()->options; l; l = l->next)
+		{
+			const srd_decoder_option *const opt =
+				(srd_decoder_option*)l->data;
+			if (strcmp(opt->id, id) == 0) {
+				val = opt->def;
+				break;
+			}
+		}
+	}
+
+	if (val)
+		return Glib::VariantBase(val, true);
+	else
+		return Glib::VariantBase();
+}
+
+void Decoder::setter(const char *id, Glib::VariantBase value)
+{
+	assert(decoder_);
+	decoder_->set_option(id, value.gobj());
+
+	assert(decoder_stack_);
+	decoder_stack_->begin_decode();
+}
+
+} // binding
+} // pv