remove special signal of KSaneOptCheckBox

src/ksanewidget.cpp

@@ -464,18 +464,15 @@ bool KSaneWidget::openDevice(const QString &deviceName)
     }
 
     // do the connections of the option parameters
-    for (i = 0; i < d->m_optList.size(); ++i) {
-        //qCDebug(KSANE_LOG) << d->m_optList.at(i)->name();
-        connect(d->m_optList.at(i), &KSaneOption::optionsNeedReload, d, &KSaneWidgetPrivate::reloadOptions);
-        connect(d->m_optList.at(i), &KSaneOption::valuesNeedReload, d, &KSaneWidgetPrivate::scheduleValuesReload);
-
-        if (d->m_optList.at(i)->needsPolling()) {
-            //qCDebug(KSANE_LOG) << d->m_optList.at(i)->name() << " needs polling";
-            d->m_pollList.append(d->m_optList.at(i));
-            KSaneOptCheckBox *buttonOption = qobject_cast<KSaneOptCheckBox *>(d->m_optList.at(i));
-            if (buttonOption) {
-                connect(buttonOption, &KSaneOptCheckBox::buttonPressed,
-                        this, &KSaneWidget::buttonPressed);
+    for (const auto &option : qAsConst(d->m_optList)) {
+        connect(option, &KSaneOption::optionsNeedReload, d, &KSaneWidgetPrivate::reloadOptions);
+        connect(option, &KSaneOption::valuesNeedReload, d, &KSaneWidgetPrivate::scheduleValuesReload);
+
+        if (option->needsPolling()) {
+            d->m_pollList.append(option);
+            if (option->type() == KSaneOption::TypeBool) {
+                connect( option, &KSaneOption::valueChanged,
+                        [=]( const QVariant &newValue ) { Q_EMIT buttonPressed(option->name(), option->title(), newValue.toBool()); } );
             }
         }
     }

src/options/ksaneoptcheckbox.cpp

@@ -64,7 +64,6 @@ void KSaneOptCheckBox::readValue()
     m_checked = (toSANE_Word(data.data()) != 0) ? true : false;
 
     if ((old != m_checked) && ((m_optDesc->cap & SANE_CAP_SOFT_SELECT) == 0)) {
-        Q_EMIT buttonPressed(name(), sane_i18n(m_optDesc->title), m_checked);
         Q_EMIT valueChanged(m_checked);
     }
 }

src/options/ksaneoptcheckbox.h

@@ -34,9 +34,6 @@ public:
 public Q_SLOTS:
     bool setValue(const QVariant &value) override;
 
-Q_SIGNALS:
-    void buttonPressed(const QString &optionName, const QString &optionLabel, bool pressed);
-
 private:
     bool             m_checked;
 };