X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fprop%2Fenum.cpp;h=1f542b74a73d6da49552a08236903ce9dad1b3fe;hp=6717101b9288f51d66f0c294a95def76590a14f0;hb=a2f96263f56e019f811a7fc2eba3129ede1d9a5f;hpb=2acdb232d6bb452cfdfaea3ef5218fb4da592329

diff --git a/pv/prop/enum.cpp b/pv/prop/enum.cpp
index 6717101b..1f542b74 100644
--- a/pv/prop/enum.cpp
+++ b/pv/prop/enum.cpp
@@ -14,32 +14,30 @@
  * 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
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <assert.h>
+#include <cassert>
+#include <cfloat>
+#include <cmath>
 
 #include <QComboBox>
 
 #include "enum.hpp"
 
+using std::abs;
 using std::pair;
 using std::vector;
 
 namespace pv {
 namespace prop {
 
-Enum::Enum(QString name,
+Enum::Enum(QString name, QString desc,
 	vector<pair<Glib::VariantBase, QString> > values,
 	Getter getter, Setter setter) :
-	Property(name, getter, setter),
+	Property(name, desc, getter, setter),
 	values_(values),
-	selector_(NULL)
-{
-}
-
-Enum::~Enum()
+	selector_(nullptr)
 {
 }
 
@@ -49,20 +47,20 @@ QWidget* Enum::get_widget(QWidget *parent, bool auto_commit)
 		return selector_;
 
 	if (!getter_)
-		return NULL;
+		return nullptr;
 
 	Glib::VariantBase variant = getter_();
 	if (!variant.gobj())
-		return NULL;
+		return nullptr;
 
 	selector_ = new QComboBox(parent);
 	for (unsigned int i = 0; i < values_.size(); i++) {
 		const pair<Glib::VariantBase, QString> &v = values_[i];
 		selector_->addItem(v.second, qVariantFromValue(v.first));
-		if (v.first.equal(variant))
-			selector_->setCurrentIndex(i);
 	}
 
+	update_widget();
+
 	if (auto_commit)
 		connect(selector_, SIGNAL(currentIndexChanged(int)),
 			this, SLOT(on_current_item_changed(int)));
@@ -70,6 +68,42 @@ QWidget* Enum::get_widget(QWidget *parent, bool auto_commit)
 	return selector_;
 }
 
+void Enum::update_widget()
+{
+	if (!selector_)
+		return;
+
+	Glib::VariantBase variant = getter_();
+	assert(variant.gobj());
+
+	for (unsigned int i = 0; i < values_.size(); i++) {
+		const pair<Glib::VariantBase, QString> &v = values_[i];
+
+		// g_variant_equal() doesn't handle floating point properly
+		if (v.first.is_of_type(Glib::VariantType("d"))) {
+			gdouble a, b;
+			g_variant_get(variant.gobj(), "d", &a);
+			g_variant_get((GVariant*)(v.first.gobj()), "d", &b);
+			if (abs(a - b) <= 2 * DBL_EPSILON)
+				selector_->setCurrentIndex(i);
+		} else {
+			// Check for "(dd)" type and handle it if it's found
+			if (v.first.is_of_type(Glib::VariantType("(dd)"))) {
+				gdouble a1, a2, b1, b2;
+				g_variant_get(variant.gobj(), "(dd)", &a1, &a2);
+				g_variant_get((GVariant*)(v.first.gobj()), "(dd)", &b1, &b2);
+				if ((abs(a1 - b1) <= 2 * DBL_EPSILON) && \
+					(abs(a2 - b2) <= 2 * DBL_EPSILON))
+					selector_->setCurrentIndex(i);
+
+			} else
+				// Handle all other types
+				if (v.first.equal(variant))
+					selector_->setCurrentIndex(i);
+		}
+	}
+}
+
 void Enum::commit()
 {
 	assert(setter_);
@@ -89,5 +123,5 @@ void Enum::on_current_item_changed(int)
 	commit();
 }
 
-} // prop
-} // pv
+}  // namespace prop
+}  // namespace pv