improve RTL workflow

src/app.h

@@ -88,6 +88,7 @@ public:
     bool redraw = true;
     bool animate = false;
     bool ui_visible = true;
+    bool ui_rtl = false;
     bool vr_active = false;
     glm::mat4 vr_controller;
     glm::vec3 vr_controller_pos;
@@ -210,6 +211,8 @@ public:
 
     void ui_save();
     void ui_restore();
+    void set_ui_rtl(bool rtl);
+    bool get_ui_rtl() const;
 
     void cmd_convert(std::string pano_path, std::string out_path);
 };

src/app_layout.cpp

@@ -931,9 +931,8 @@ void App::init_menu_tools()
 
             if (auto rtl_btn = popup_exp->find<NodeButtonCustom>("tools-rtl")) 
             {
-                auto ui = main->find("central-row");
                 NodeCheckBox* cb = rtl_btn->find<NodeCheckBox>("tools-rtl-check");
-                cb->set_value(ui->GetRTL() == YGDirectionRTL, false);
+                cb->set_value(ui_rtl, false);
 
                 rtl_btn->on_click = [this, popup_exp, rtl_btn](Node* b)
                 {
@@ -943,8 +942,7 @@ void App::init_menu_tools()
                 
                 rtl_btn->find<NodeCheckBox>("tools-rtl-check")->on_value_changed = [this, main](Node*, bool checked) 
                 {
-                    auto ui = main->find("central-row");
+                    set_ui_rtl(checked);
-                    ui->SetRTL(checked ? YGDirectionRTL : YGDirectionLTR);
                 };
             }
 
@@ -1363,6 +1361,17 @@ void App::initLayout()
     LOG("initializing layout completed");
 }
 
+void App::set_ui_rtl(bool rtl)
+{
+    ui_rtl = rtl;
+    layout[main_id]->find("central-row")->SetRTL(rtl ? YGDirectionRTL : YGDirectionLTR);
+}
+
+bool App::get_ui_rtl() const
+{
+    return ui_rtl;
+}
+
 void App::ui_save()
 {
     Serializer::Descriptor d;
@@ -1409,7 +1418,7 @@ void App::ui_save()
     d.set("drop-right", list_drop_right);
 
     Settings::set("ui", d);
-    Settings::set("ui-rtl", Serializer::Integer(layout[main_id]->find("central-row")->GetRTL()));
+    Settings::set("ui-rtl", Serializer::Boolean(ui_rtl));
     
 #if _WIN32
     extern void win32_save_window_state();
@@ -1422,7 +1431,7 @@ void App::ui_save()
 void App::ui_restore()
 {
     if (Settings::has("ui-rtl"))
-        layout[main_id]->find("central-row")->SetRTL((YGDirection)Settings::value<Serializer::Integer>("ui-rtl"));
+        set_ui_rtl(Settings::value<Serializer::Integer>("ui-rtl"));
     
     if (!Settings::has("ui"))
         return;

src/node_panel_quick.cpp

@@ -119,7 +119,7 @@ void NodePanelQuick::init_controls()
 
     m_slider_size = find<NodeSliderV>("quick-size");
     m_slider_size->on_value_changed = [this](Node* target, float value) {
-        float off = m_slider_flow->m_pos.x > App::I.width / 2.f ? -100.f : 100.f;
+        float off = App::I.ui_rtl ? -100.f : 100.f;
         auto newpos = (m_slider_flow->m_pos + glm::vec2(off, m_slider_flow->m_size.y / 2.f)) * App::I.zoom;
         if (auto m = dynamic_cast<CanvasModePen*>(Canvas::I->modes[(int)Canvas::I->m_current_mode][0]))
         {
@@ -138,7 +138,7 @@ void NodePanelQuick::init_controls()
     };
     m_slider_flow = find<NodeSliderV>("quick-flow");
     m_slider_flow->on_value_changed = [this](Node* target, float value) {
-        float off = m_slider_flow->m_pos.x > App::I.width / 2.f ? -100.f : 100.f;
+        float off = App::I.ui_rtl ? -100.f : 100.f;
         auto newpos = (m_slider_flow->m_pos + glm::vec2(off, m_slider_flow->m_size.y / 2.f)) * App::I.zoom;
         if (auto m = dynamic_cast<CanvasModePen*>(Canvas::I->modes[(int)Canvas::I->m_current_mode][0]))
         {