Fix #1567 by showing a custom text for the minimum range's value

pv/binding/device.cpp

@@ -92,7 +92,9 @@ Device::Device(shared_ptr<sigrok::Configurable> configurable) :
 			break;
 
 		case SR_CONF_LIMIT_FRAMES:
-			bind_int(name, "", "", pair<int64_t, int64_t>(0, 1000000), get, set);
+			// Value 0 means that there is no limit
+			bind_int(name, "", "", pair<int64_t, int64_t>(0, 1000000), get, set,
+				tr("No Limit"));
 			break;
 
 		case SR_CONF_PATTERN_MODE:
@@ -182,13 +184,13 @@ void Device::bind_enum(const QString &name, const QString &desc,
 }
 
 void Device::bind_int(const QString &name, const QString &desc, QString suffix,
-	optional< pair<int64_t, int64_t> > range,
-	Property::Getter getter, Property::Setter setter)
+	optional< pair<int64_t, int64_t> > range, Property::Getter getter,
+	Property::Setter setter, QString special_value_text)
 {
 	assert(configurable_);
 
 	properties_.push_back(shared_ptr<Property>(new Int(name, desc, suffix,
-		range, getter, setter)));
+		range, getter, setter, special_value_text)));
 }
 
 QString Device::print_timebase(Glib::VariantBase gvar)

pv/binding/device.hpp

@@ -62,7 +62,8 @@ private:
 		function<QString (Glib::VariantBase)> printer = print_gvariant);
 	void bind_int(const QString &name, const QString &desc, QString suffix,
 		boost::optional< pair<int64_t, int64_t> > range,
-		prop::Property::Getter getter, prop::Property::Setter setter);
+		prop::Property::Getter getter, prop::Property::Setter setter,
+		QString special_value_text = "");
 
 	static QString print_timebase(Glib::VariantBase gvar);
 	static QString print_vdiv(Glib::VariantBase gvar);

pv/prop/bool.hpp

@@ -29,7 +29,7 @@ namespace prop {
 
 class Bool : public Property
 {
-	Q_OBJECT;
+	Q_OBJECT
 
 public:
 	Bool(QString name, QString desc, Getter getter, Setter setter);

pv/prop/enum.hpp

@@ -41,7 +41,7 @@ namespace prop {
 
 class Enum : public Property
 {
-	Q_OBJECT;
+	Q_OBJECT
 
 public:
 	Enum(QString name, QString desc,

pv/prop/int.cpp

@@ -35,14 +35,12 @@ using std::pair;
 namespace pv {
 namespace prop {
 
-Int::Int(QString name,
-	QString desc,
-	QString suffix,
-	optional< pair<int64_t, int64_t> > range,
-	Getter getter,
-	Setter setter) :
+Int::Int(QString name, QString desc, QString suffix,
+	optional< pair<int64_t, int64_t> > range, Getter getter, Setter setter,
+	QString special_value_text) :
 	Property(name, desc, getter, setter),
 	suffix_(suffix),
+	special_value_text_(special_value_text),
 	range_(range),
 	spin_box_(nullptr)
 {
@@ -72,6 +70,7 @@ QWidget* Int::get_widget(QWidget *parent, bool auto_commit)
 
 	spin_box_ = new QSpinBox(parent);
 	spin_box_->setSuffix(suffix_);
+	spin_box_->setSpecialValueText(special_value_text_);
 
 	const GVariantType *const type = g_variant_get_type(value);
 	assert(type);

pv/prop/int.hpp

@@ -35,12 +35,12 @@ namespace prop {
 
 class Int : public Property
 {
-	Q_OBJECT;
+	Q_OBJECT
 
 public:
 	Int(QString name, QString desc, QString suffix,
 		boost::optional< pair<int64_t, int64_t> > range,
-		Getter getter, Setter setter);
+		Getter getter, Setter setter, QString special_value_text = "");
 
 	virtual ~Int() = default;
 
@@ -53,7 +53,7 @@ private Q_SLOTS:
 	void on_value_changed(int);
 
 private:
-	const QString suffix_;
+	const QString suffix_, special_value_text_;
 	const boost::optional< pair<int64_t, int64_t> > range_;
 
 	Glib::VariantBase value_;

pv/prop/property.hpp

@@ -40,7 +40,7 @@ namespace prop {
 
 class Property : public QObject
 {
-	Q_OBJECT;
+	Q_OBJECT
 
 public:
 	typedef function<Glib::VariantBase ()> Getter;

pv/prop/string.hpp

@@ -29,7 +29,7 @@ namespace prop {
 
 class String : public Property
 {
-	Q_OBJECT;
+	Q_OBJECT
 
 public:
 	String(QString name, QString desc, Getter getter, Setter setter);