stacked widget

tested and working

UI/ui_stacked_widget.cpp

@@ -0,0 +1,44 @@
+#include "ui_stacked_widget.hpp"
+
+UI_stacked_widget::UI_stacked_widget(QObject *parent) : UI_item(UI_STACKED_WIDGET_TYPE, parent)
+{
+}
+
+UI_stacked_widget::UI_stacked_widget(size_t tab_count, size_t current_tab, QObject *parent)
+    : UI_item(UI_STACKED_WIDGET_TYPE, parent), m_tab_count(tab_count), m_current_tab(current_tab)
+{
+}
+
+void UI_stacked_widget::set_selected(size_t selected)
+{
+    if (selected >= m_tab_count)
+        return;
+    m_current_tab = selected;
+    emit ui_changed();
+}
+size_t UI_stacked_widget::selected() const
+{
+    return m_current_tab;
+}
+
+void UI_stacked_widget::advance_tab()
+{
+    if (m_tab_count == 0)
+        return;
+    m_current_tab = (m_current_tab + 1) % m_tab_count;
+    emit ui_changed();
+}
+
+void UI_stacked_widget::from_json(const json &j)
+{
+    UI_item::from_json(j);
+    m_tab_count = j.at("tab_count");
+    m_current_tab = j.at("current_tab");
+}
+json UI_stacked_widget::to_json(size_t id) const
+{
+    json j = UI_item::to_json(id);
+    j["tab_count"] = m_tab_count;
+    j["current_tab"] = m_current_tab;
+    return j;
+}