diff --git a/demo/rust/src/interface.rs b/demo/rust/src/interface.rs
index 301ee51..230ce0b 100644
--- a/demo/rust/src/interface.rs
+++ b/demo/rust/src/interface.rs
@@ -137,6 +137,8 @@ pub extern "C" fn demo_new(
     fibonacci_result_changed: fn(*const FibonacciQObject),
     fibonacci_list: *mut FibonacciListQObject,
     fibonacci_list_new_data_ready: fn(*const FibonacciListQObject),
+    fibonacci_list_layout_about_to_be_changed: fn(*const FibonacciListQObject),
+    fibonacci_list_layout_changed: fn(*const FibonacciListQObject),
     fibonacci_list_data_changed: fn(*const FibonacciListQObject, usize, usize),
     fibonacci_list_begin_reset_model: fn(*const FibonacciListQObject),
     fibonacci_list_end_reset_model: fn(*const FibonacciListQObject),
@@ -149,6 +151,8 @@ pub extern "C" fn demo_new(
     file_system_tree: *mut FileSystemTreeQObject,
     file_system_tree_path_changed: fn(*const FileSystemTreeQObject),
     file_system_tree_new_data_ready: fn(*const FileSystemTreeQObject, index: COption<usize>),
+    file_system_tree_layout_about_to_be_changed: fn(*const FileSystemTreeQObject),
+    file_system_tree_layout_changed: fn(*const FileSystemTreeQObject),
     file_system_tree_data_changed: fn(*const FileSystemTreeQObject, usize, usize),
     file_system_tree_begin_reset_model: fn(*const FileSystemTreeQObject),
     file_system_tree_end_reset_model: fn(*const FileSystemTreeQObject),
@@ -161,6 +165,8 @@ pub extern "C" fn demo_new(
     processes: *mut ProcessesQObject,
     processes_active_changed: fn(*const ProcessesQObject),
     processes_new_data_ready: fn(*const ProcessesQObject, index: COption<usize>),
+    processes_layout_about_to_be_changed: fn(*const ProcessesQObject),
+    processes_layout_changed: fn(*const ProcessesQObject),
     processes_data_changed: fn(*const ProcessesQObject, usize, usize),
     processes_begin_reset_model: fn(*const ProcessesQObject),
     processes_end_reset_model: fn(*const ProcessesQObject),
@@ -172,6 +178,8 @@ pub extern "C" fn demo_new(
     processes_end_remove_rows: fn(*const ProcessesQObject),
     time_series: *mut TimeSeriesQObject,
     time_series_new_data_ready: fn(*const TimeSeriesQObject),
+    time_series_layout_about_to_be_changed: fn(*const TimeSeriesQObject),
+    time_series_layout_changed: fn(*const TimeSeriesQObject),
     time_series_data_changed: fn(*const TimeSeriesQObject, usize, usize),
     time_series_begin_reset_model: fn(*const TimeSeriesQObject),
     time_series_end_reset_model: fn(*const TimeSeriesQObject),
@@ -194,6 +202,8 @@ pub extern "C" fn demo_new(
     };
     let model = FibonacciListList {
         qobject: fibonacci_list,
+        layout_about_to_be_changed: fibonacci_list_layout_about_to_be_changed,
+        layout_changed: fibonacci_list_layout_changed,
         data_changed: fibonacci_list_data_changed,
         begin_reset_model: fibonacci_list_begin_reset_model,
         end_reset_model: fibonacci_list_end_reset_model,
@@ -212,6 +222,8 @@ pub extern "C" fn demo_new(
     };
     let model = FileSystemTreeTree {
         qobject: file_system_tree,
+        layout_about_to_be_changed: file_system_tree_layout_about_to_be_changed,
+        layout_changed: file_system_tree_layout_changed,
         data_changed: file_system_tree_data_changed,
         begin_reset_model: file_system_tree_begin_reset_model,
         end_reset_model: file_system_tree_end_reset_model,
@@ -230,6 +242,8 @@ pub extern "C" fn demo_new(
     };
     let model = ProcessesTree {
         qobject: processes,
+        layout_about_to_be_changed: processes_layout_about_to_be_changed,
+        layout_changed: processes_layout_changed,
         data_changed: processes_data_changed,
         begin_reset_model: processes_begin_reset_model,
         end_reset_model: processes_end_reset_model,
@@ -247,6 +261,8 @@ pub extern "C" fn demo_new(
     };
     let model = TimeSeriesList {
         qobject: time_series,
+        layout_about_to_be_changed: time_series_layout_about_to_be_changed,
+        layout_changed: time_series_layout_changed,
         data_changed: time_series_data_changed,
         begin_reset_model: time_series_begin_reset_model,
         end_reset_model: time_series_end_reset_model,
@@ -396,6 +412,8 @@ impl FibonacciListEmitter {
 
 pub struct FibonacciListList {
     qobject: *const FibonacciListQObject,
+    layout_about_to_be_changed: fn(*const FibonacciListQObject),
+    layout_changed: fn(*const FibonacciListQObject),
     data_changed: fn(*const FibonacciListQObject, usize, usize),
     begin_reset_model: fn(*const FibonacciListQObject),
     end_reset_model: fn(*const FibonacciListQObject),
@@ -408,6 +426,12 @@ pub struct FibonacciListList {
 }
 
 impl FibonacciListList {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -456,6 +480,8 @@ pub trait FibonacciListTrait {
 pub extern "C" fn fibonacci_list_new(
     fibonacci_list: *mut FibonacciListQObject,
     fibonacci_list_new_data_ready: fn(*const FibonacciListQObject),
+    fibonacci_list_layout_about_to_be_changed: fn(*const FibonacciListQObject),
+    fibonacci_list_layout_changed: fn(*const FibonacciListQObject),
     fibonacci_list_data_changed: fn(*const FibonacciListQObject, usize, usize),
     fibonacci_list_begin_reset_model: fn(*const FibonacciListQObject),
     fibonacci_list_end_reset_model: fn(*const FibonacciListQObject),
@@ -472,6 +498,8 @@ pub extern "C" fn fibonacci_list_new(
     };
     let model = FibonacciListList {
         qobject: fibonacci_list,
+        layout_about_to_be_changed: fibonacci_list_layout_about_to_be_changed,
+        layout_changed: fibonacci_list_layout_changed,
         data_changed: fibonacci_list_data_changed,
         begin_reset_model: fibonacci_list_begin_reset_model,
         end_reset_model: fibonacci_list_end_reset_model,
@@ -563,6 +591,8 @@ impl FileSystemTreeEmitter {
 
 pub struct FileSystemTreeTree {
     qobject: *const FileSystemTreeQObject,
+    layout_about_to_be_changed: fn(*const FileSystemTreeQObject),
+    layout_changed: fn(*const FileSystemTreeQObject),
     data_changed: fn(*const FileSystemTreeQObject, usize, usize),
     begin_reset_model: fn(*const FileSystemTreeQObject),
     end_reset_model: fn(*const FileSystemTreeQObject),
@@ -575,6 +605,12 @@ pub struct FileSystemTreeTree {
 }
 
 impl FileSystemTreeTree {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -631,6 +667,8 @@ pub extern "C" fn file_system_tree_new(
     file_system_tree: *mut FileSystemTreeQObject,
     file_system_tree_path_changed: fn(*const FileSystemTreeQObject),
     file_system_tree_new_data_ready: fn(*const FileSystemTreeQObject, index: COption<usize>),
+    file_system_tree_layout_about_to_be_changed: fn(*const FileSystemTreeQObject),
+    file_system_tree_layout_changed: fn(*const FileSystemTreeQObject),
     file_system_tree_data_changed: fn(*const FileSystemTreeQObject, usize, usize),
     file_system_tree_begin_reset_model: fn(*const FileSystemTreeQObject),
     file_system_tree_end_reset_model: fn(*const FileSystemTreeQObject),
@@ -648,6 +686,8 @@ pub extern "C" fn file_system_tree_new(
     };
     let model = FileSystemTreeTree {
         qobject: file_system_tree,
+        layout_about_to_be_changed: file_system_tree_layout_about_to_be_changed,
+        layout_changed: file_system_tree_layout_changed,
         data_changed: file_system_tree_data_changed,
         begin_reset_model: file_system_tree_begin_reset_model,
         end_reset_model: file_system_tree_end_reset_model,
@@ -835,6 +875,8 @@ impl ProcessesEmitter {
 
 pub struct ProcessesTree {
     qobject: *const ProcessesQObject,
+    layout_about_to_be_changed: fn(*const ProcessesQObject),
+    layout_changed: fn(*const ProcessesQObject),
     data_changed: fn(*const ProcessesQObject, usize, usize),
     begin_reset_model: fn(*const ProcessesQObject),
     end_reset_model: fn(*const ProcessesQObject),
@@ -847,6 +889,12 @@ pub struct ProcessesTree {
 }
 
 impl ProcessesTree {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -904,6 +952,8 @@ pub extern "C" fn processes_new(
     processes: *mut ProcessesQObject,
     processes_active_changed: fn(*const ProcessesQObject),
     processes_new_data_ready: fn(*const ProcessesQObject, index: COption<usize>),
+    processes_layout_about_to_be_changed: fn(*const ProcessesQObject),
+    processes_layout_changed: fn(*const ProcessesQObject),
     processes_data_changed: fn(*const ProcessesQObject, usize, usize),
     processes_begin_reset_model: fn(*const ProcessesQObject),
     processes_end_reset_model: fn(*const ProcessesQObject),
@@ -921,6 +971,8 @@ pub extern "C" fn processes_new(
     };
     let model = ProcessesTree {
         qobject: processes,
+        layout_about_to_be_changed: processes_layout_about_to_be_changed,
+        layout_changed: processes_layout_changed,
         data_changed: processes_data_changed,
         begin_reset_model: processes_begin_reset_model,
         end_reset_model: processes_end_reset_model,
@@ -1081,6 +1133,8 @@ impl TimeSeriesEmitter {
 
 pub struct TimeSeriesList {
     qobject: *const TimeSeriesQObject,
+    layout_about_to_be_changed: fn(*const TimeSeriesQObject),
+    layout_changed: fn(*const TimeSeriesQObject),
     data_changed: fn(*const TimeSeriesQObject, usize, usize),
     begin_reset_model: fn(*const TimeSeriesQObject),
     end_reset_model: fn(*const TimeSeriesQObject),
@@ -1093,6 +1147,12 @@ pub struct TimeSeriesList {
 }
 
 impl TimeSeriesList {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -1145,6 +1205,8 @@ pub trait TimeSeriesTrait {
 pub extern "C" fn time_series_new(
     time_series: *mut TimeSeriesQObject,
     time_series_new_data_ready: fn(*const TimeSeriesQObject),
+    time_series_layout_about_to_be_changed: fn(*const TimeSeriesQObject),
+    time_series_layout_changed: fn(*const TimeSeriesQObject),
     time_series_data_changed: fn(*const TimeSeriesQObject, usize, usize),
     time_series_begin_reset_model: fn(*const TimeSeriesQObject),
     time_series_end_reset_model: fn(*const TimeSeriesQObject),
@@ -1161,6 +1223,8 @@ pub extern "C" fn time_series_new(
     };
     let model = TimeSeriesList {
         qobject: time_series,
+        layout_about_to_be_changed: time_series_layout_about_to_be_changed,
+        layout_changed: time_series_layout_changed,
         data_changed: time_series_data_changed,
         begin_reset_model: time_series_begin_reset_model,
         end_reset_model: time_series_end_reset_model,
diff --git a/demo/src/Bindings.cpp b/demo/src/Bindings.cpp
index 0576ec1..7eb64cb 100644
--- a/demo/src/Bindings.cpp
+++ b/demo/src/Bindings.cpp
@@ -71,6 +71,8 @@ namespace {
 extern "C" {
     Demo::Private* demo_new(Demo*, Fibonacci*, void (*)(Fibonacci*), void (*)(Fibonacci*), FibonacciList*,
         void (*)(const FibonacciList*),
+        void (*)(FibonacciList*),
+        void (*)(FibonacciList*),
         void (*)(FibonacciList*, quintptr, quintptr),
         void (*)(FibonacciList*),
         void (*)(FibonacciList*),
@@ -81,6 +83,8 @@ extern "C" {
         void (*)(FibonacciList*, int, int),
         void (*)(FibonacciList*), FileSystemTree*, void (*)(FileSystemTree*),
         void (*)(const FileSystemTree*, option_quintptr),
+        void (*)(FileSystemTree*),
+        void (*)(FileSystemTree*),
         void (*)(FileSystemTree*, quintptr, quintptr),
         void (*)(FileSystemTree*),
         void (*)(FileSystemTree*),
@@ -91,6 +95,8 @@ extern "C" {
         void (*)(FileSystemTree*, option_quintptr, int, int),
         void (*)(FileSystemTree*), Processes*, void (*)(Processes*),
         void (*)(const Processes*, option_quintptr),
+        void (*)(Processes*),
+        void (*)(Processes*),
         void (*)(Processes*, quintptr, quintptr),
         void (*)(Processes*),
         void (*)(Processes*),
@@ -101,6 +107,8 @@ extern "C" {
         void (*)(Processes*, option_quintptr, int, int),
         void (*)(Processes*), TimeSeries*,
         void (*)(const TimeSeries*),
+        void (*)(TimeSeries*),
+        void (*)(TimeSeries*),
         void (*)(TimeSeries*, quintptr, quintptr),
         void (*)(TimeSeries*),
         void (*)(TimeSeries*),
@@ -266,6 +274,8 @@ bool FibonacciList::setHeaderData(int section, Qt::Orientation orientation, cons
 extern "C" {
     FibonacciList::Private* fibonacci_list_new(FibonacciList*,
         void (*)(const FibonacciList*),
+        void (*)(FibonacciList*),
+        void (*)(FibonacciList*),
         void (*)(FibonacciList*, quintptr, quintptr),
         void (*)(FibonacciList*),
         void (*)(FibonacciList*),
@@ -513,6 +523,8 @@ bool FileSystemTree::setHeaderData(int section, Qt::Orientation orientation, con
 extern "C" {
     FileSystemTree::Private* file_system_tree_new(FileSystemTree*, void (*)(FileSystemTree*),
         void (*)(const FileSystemTree*, option_quintptr),
+        void (*)(FileSystemTree*),
+        void (*)(FileSystemTree*),
         void (*)(FileSystemTree*, quintptr, quintptr),
         void (*)(FileSystemTree*),
         void (*)(FileSystemTree*),
@@ -756,6 +768,8 @@ bool Processes::setHeaderData(int section, Qt::Orientation orientation, const QV
 extern "C" {
     Processes::Private* processes_new(Processes*, void (*)(Processes*),
         void (*)(const Processes*, option_quintptr),
+        void (*)(Processes*),
+        void (*)(Processes*),
         void (*)(Processes*, quintptr, quintptr),
         void (*)(Processes*),
         void (*)(Processes*),
@@ -1009,6 +1023,8 @@ bool TimeSeries::setData(const QModelIndex &index, const QVariant &value, int ro
 extern "C" {
     TimeSeries::Private* time_series_new(TimeSeries*,
         void (*)(const TimeSeries*),
+        void (*)(TimeSeries*),
+        void (*)(TimeSeries*),
         void (*)(TimeSeries*, quintptr, quintptr),
         void (*)(TimeSeries*),
         void (*)(TimeSeries*),
@@ -1046,6 +1062,12 @@ Demo::Demo(QObject *parent):
         [](const FibonacciList* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](FibonacciList* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](FibonacciList* o) {
+            emit o->layoutChanged();
+        },
         [](FibonacciList* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, 1, last));
@@ -1084,6 +1106,12 @@ Demo::Demo(QObject *parent):
                 emit o->newDataReady(QModelIndex());
             }
         },
+        [](FileSystemTree* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](FileSystemTree* o) {
+            emit o->layoutChanged();
+        },
         [](FileSystemTree* o, quintptr first, quintptr last) {
             quintptr frow = file_system_tree_row(o->m_d, first);
             quintptr lrow = file_system_tree_row(o->m_d, first);
@@ -1144,6 +1172,12 @@ Demo::Demo(QObject *parent):
                 emit o->newDataReady(QModelIndex());
             }
         },
+        [](Processes* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](Processes* o) {
+            emit o->layoutChanged();
+        },
         [](Processes* o, quintptr first, quintptr last) {
             quintptr frow = processes_row(o->m_d, first);
             quintptr lrow = processes_row(o->m_d, first);
@@ -1198,6 +1232,12 @@ Demo::Demo(QObject *parent):
         [](const TimeSeries* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](TimeSeries* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](TimeSeries* o) {
+            emit o->layoutChanged();
+        },
         [](TimeSeries* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, 2, last));
@@ -1339,6 +1379,12 @@ FibonacciList::FibonacciList(QObject *parent):
         [](const FibonacciList* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](FibonacciList* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](FibonacciList* o) {
+            emit o->layoutChanged();
+        },
         [](FibonacciList* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, 1, last));
@@ -1405,6 +1451,12 @@ FileSystemTree::FileSystemTree(QObject *parent):
                 emit o->newDataReady(QModelIndex());
             }
         },
+        [](FileSystemTree* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](FileSystemTree* o) {
+            emit o->layoutChanged();
+        },
         [](FileSystemTree* o, quintptr first, quintptr last) {
             quintptr frow = file_system_tree_row(o->m_d, first);
             quintptr lrow = file_system_tree_row(o->m_d, first);
@@ -1509,6 +1561,12 @@ Processes::Processes(QObject *parent):
                 emit o->newDataReady(QModelIndex());
             }
         },
+        [](Processes* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](Processes* o) {
+            emit o->layoutChanged();
+        },
         [](Processes* o, quintptr first, quintptr last) {
             quintptr frow = processes_row(o->m_d, first);
             quintptr lrow = processes_row(o->m_d, first);
@@ -1599,6 +1657,12 @@ TimeSeries::TimeSeries(QObject *parent):
         [](const TimeSeries* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](TimeSeries* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](TimeSeries* o) {
+            emit o->layoutChanged();
+        },
         [](TimeSeries* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, 2, last));
diff --git a/src/cpp.cpp b/src/cpp.cpp
index 400c10d..a113e22 100644
--- a/src/cpp.cpp
+++ b/src/cpp.cpp
@@ -638,6 +638,8 @@ void constructorArgsDecl(QTextStream& cpp, const Object& o, const Configuration&
     if (o.type == ObjectType::List) {
         cpp << QString(R"(,
         void (*)(const %1*),
+        void (*)(%1*),
+        void (*)(%1*),
         void (*)(%1*, quintptr, quintptr),
         void (*)(%1*),
         void (*)(%1*),
@@ -651,6 +653,8 @@ void constructorArgsDecl(QTextStream& cpp, const Object& o, const Configuration&
     if (o.type == ObjectType::Tree) {
         cpp << QString(R"(,
         void (*)(const %1*, option_quintptr),
+        void (*)(%1*),
+        void (*)(%1*),
         void (*)(%1*, quintptr, quintptr),
         void (*)(%1*),
         void (*)(%1*),
@@ -683,6 +687,12 @@ void constructorArgs(QTextStream& cpp, const QString& prefix, const Object& o, c
         [](const %1* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](%1* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](%1* o) {
+            emit o->layoutChanged();
+        },
         [](%1* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, %2, last));
@@ -723,6 +733,12 @@ void constructorArgs(QTextStream& cpp, const QString& prefix, const Object& o, c
                 emit o->newDataReady(QModelIndex());
             }
         },
+        [](%1* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](%1* o) {
+            emit o->layoutChanged();
+        },
         [](%1* o, quintptr first, quintptr last) {
             quintptr frow = %2_row(o->m_d, first);
             quintptr lrow = %2_row(o->m_d, first);
diff --git a/src/rust.cpp b/src/rust.cpp
index d07ae16..62cc23f 100644
--- a/src/rust.cpp
+++ b/src/rust.cpp
@@ -95,6 +95,8 @@ void rConstructorArgsDecl(QTextStream& r, const QString& name, const Object& o,
             destDecl = " index: COption<usize>,";
         }
         r << QString(R"(,
+    %3_layout_about_to_be_changed: fn(*const %1QObject),
+    %3_layout_changed: fn(*const %1QObject),
     %3_data_changed: fn(*const %1QObject, usize, usize),
     %3_begin_reset_model: fn(*const %1QObject),
     %3_end_reset_model: fn(*const %1QObject),
@@ -133,6 +135,8 @@ void rConstructorArgs(QTextStream& r, const QString& name, const Object& o, cons
         r << QString(R"(    };
     let model = %1%2 {
         qobject: %3,
+        layout_about_to_be_changed: %4_layout_about_to_be_changed,
+        layout_changed: %4_layout_changed,
         data_changed: %4_data_changed,
         begin_reset_model: %4_begin_reset_model,
         end_reset_model: %4_end_reset_model,
@@ -293,6 +297,8 @@ impl %1Emitter {
 
 pub struct %1%2 {
     qobject: *const %1QObject,
+    layout_about_to_be_changed: fn(*const %1QObject),
+    layout_changed: fn(*const %1QObject),
     data_changed: fn(*const %1QObject, usize, usize),
     begin_reset_model: fn(*const %1QObject),
     end_reset_model: fn(*const %1QObject),
@@ -305,6 +311,12 @@ pub struct %1%2 {
 }
 
 impl %1%2 {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
diff --git a/tests/rust_list/src/interface.rs b/tests/rust_list/src/interface.rs
index b96be91..77648bd 100644
--- a/tests/rust_list/src/interface.rs
+++ b/tests/rust_list/src/interface.rs
@@ -115,6 +115,8 @@ impl NoRoleEmitter {
 
 pub struct NoRoleList {
     qobject: *const NoRoleQObject,
+    layout_about_to_be_changed: fn(*const NoRoleQObject),
+    layout_changed: fn(*const NoRoleQObject),
     data_changed: fn(*const NoRoleQObject, usize, usize),
     begin_reset_model: fn(*const NoRoleQObject),
     end_reset_model: fn(*const NoRoleQObject),
@@ -127,6 +129,12 @@ pub struct NoRoleList {
 }
 
 impl NoRoleList {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -177,6 +185,8 @@ pub trait NoRoleTrait {
 pub extern "C" fn no_role_new(
     no_role: *mut NoRoleQObject,
     no_role_new_data_ready: fn(*const NoRoleQObject),
+    no_role_layout_about_to_be_changed: fn(*const NoRoleQObject),
+    no_role_layout_changed: fn(*const NoRoleQObject),
     no_role_data_changed: fn(*const NoRoleQObject, usize, usize),
     no_role_begin_reset_model: fn(*const NoRoleQObject),
     no_role_end_reset_model: fn(*const NoRoleQObject),
@@ -193,6 +203,8 @@ pub extern "C" fn no_role_new(
     };
     let model = NoRoleList {
         qobject: no_role,
+        layout_about_to_be_changed: no_role_layout_about_to_be_changed,
+        layout_changed: no_role_layout_changed,
         data_changed: no_role_data_changed,
         begin_reset_model: no_role_begin_reset_model,
         end_reset_model: no_role_end_reset_model,
@@ -302,6 +314,8 @@ impl PersonsEmitter {
 
 pub struct PersonsList {
     qobject: *const PersonsQObject,
+    layout_about_to_be_changed: fn(*const PersonsQObject),
+    layout_changed: fn(*const PersonsQObject),
     data_changed: fn(*const PersonsQObject, usize, usize),
     begin_reset_model: fn(*const PersonsQObject),
     end_reset_model: fn(*const PersonsQObject),
@@ -314,6 +328,12 @@ pub struct PersonsList {
 }
 
 impl PersonsList {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -362,6 +382,8 @@ pub trait PersonsTrait {
 pub extern "C" fn persons_new(
     persons: *mut PersonsQObject,
     persons_new_data_ready: fn(*const PersonsQObject),
+    persons_layout_about_to_be_changed: fn(*const PersonsQObject),
+    persons_layout_changed: fn(*const PersonsQObject),
     persons_data_changed: fn(*const PersonsQObject, usize, usize),
     persons_begin_reset_model: fn(*const PersonsQObject),
     persons_end_reset_model: fn(*const PersonsQObject),
@@ -378,6 +400,8 @@ pub extern "C" fn persons_new(
     };
     let model = PersonsList {
         qobject: persons,
+        layout_about_to_be_changed: persons_layout_about_to_be_changed,
+        layout_changed: persons_layout_changed,
         data_changed: persons_data_changed,
         begin_reset_model: persons_begin_reset_model,
         end_reset_model: persons_end_reset_model,
diff --git a/tests/rust_list_types/src/interface.rs b/tests/rust_list_types/src/interface.rs
index 6ca9b67..ba751d1 100644
--- a/tests/rust_list_types/src/interface.rs
+++ b/tests/rust_list_types/src/interface.rs
@@ -118,6 +118,8 @@ impl ListEmitter {
 
 pub struct ListList {
     qobject: *const ListQObject,
+    layout_about_to_be_changed: fn(*const ListQObject),
+    layout_changed: fn(*const ListQObject),
     data_changed: fn(*const ListQObject, usize, usize),
     begin_reset_model: fn(*const ListQObject),
     end_reset_model: fn(*const ListQObject),
@@ -130,6 +132,12 @@ pub struct ListList {
 }
 
 impl ListList {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -208,6 +216,8 @@ pub trait ListTrait {
 pub extern "C" fn list_new(
     list: *mut ListQObject,
     list_new_data_ready: fn(*const ListQObject),
+    list_layout_about_to_be_changed: fn(*const ListQObject),
+    list_layout_changed: fn(*const ListQObject),
     list_data_changed: fn(*const ListQObject, usize, usize),
     list_begin_reset_model: fn(*const ListQObject),
     list_end_reset_model: fn(*const ListQObject),
@@ -224,6 +234,8 @@ pub extern "C" fn list_new(
     };
     let model = ListList {
         qobject: list,
+        layout_about_to_be_changed: list_layout_about_to_be_changed,
+        layout_changed: list_layout_changed,
         data_changed: list_data_changed,
         begin_reset_model: list_begin_reset_model,
         end_reset_model: list_end_reset_model,
diff --git a/tests/rust_tree/src/interface.rs b/tests/rust_tree/src/interface.rs
index 38979d5..be7d5a7 100644
--- a/tests/rust_tree/src/interface.rs
+++ b/tests/rust_tree/src/interface.rs
@@ -115,6 +115,8 @@ impl PersonsEmitter {
 
 pub struct PersonsTree {
     qobject: *const PersonsQObject,
+    layout_about_to_be_changed: fn(*const PersonsQObject),
+    layout_changed: fn(*const PersonsQObject),
     data_changed: fn(*const PersonsQObject, usize, usize),
     begin_reset_model: fn(*const PersonsQObject),
     end_reset_model: fn(*const PersonsQObject),
@@ -127,6 +129,12 @@ pub struct PersonsTree {
 }
 
 impl PersonsTree {
+    pub fn layout_about_to_be_changed(&self) {
+        (self.layout_about_to_be_changed)(self.qobject);
+    }
+    pub fn layout_changed(&self) {
+        (self.layout_changed)(self.qobject);
+    }
     pub fn data_changed(&self, first: usize, last: usize) {
         (self.data_changed)(self.qobject, first, last);
     }
@@ -176,6 +184,8 @@ pub trait PersonsTrait {
 pub extern "C" fn persons_new(
     persons: *mut PersonsQObject,
     persons_new_data_ready: fn(*const PersonsQObject, index: COption<usize>),
+    persons_layout_about_to_be_changed: fn(*const PersonsQObject),
+    persons_layout_changed: fn(*const PersonsQObject),
     persons_data_changed: fn(*const PersonsQObject, usize, usize),
     persons_begin_reset_model: fn(*const PersonsQObject),
     persons_end_reset_model: fn(*const PersonsQObject),
@@ -192,6 +202,8 @@ pub extern "C" fn persons_new(
     };
     let model = PersonsTree {
         qobject: persons,
+        layout_about_to_be_changed: persons_layout_about_to_be_changed,
+        layout_changed: persons_layout_changed,
         data_changed: persons_data_changed,
         begin_reset_model: persons_begin_reset_model,
         end_reset_model: persons_end_reset_model,
diff --git a/tests/test_list_rust.cpp b/tests/test_list_rust.cpp
index 348051e..9d8e4b6 100644
--- a/tests/test_list_rust.cpp
+++ b/tests/test_list_rust.cpp
@@ -208,6 +208,8 @@ bool NoRole::setData(const QModelIndex &index, const QVariant &value, int role)
 extern "C" {
     NoRole::Private* no_role_new(NoRole*,
         void (*)(const NoRole*),
+        void (*)(NoRole*),
+        void (*)(NoRole*),
         void (*)(NoRole*, quintptr, quintptr),
         void (*)(NoRole*),
         void (*)(NoRole*),
@@ -375,6 +377,8 @@ bool Persons::setData(const QModelIndex &index, const QVariant &value, int role)
 extern "C" {
     Persons::Private* persons_new(Persons*,
         void (*)(const Persons*),
+        void (*)(Persons*),
+        void (*)(Persons*),
         void (*)(Persons*, quintptr, quintptr),
         void (*)(Persons*),
         void (*)(Persons*),
@@ -401,6 +405,12 @@ NoRole::NoRole(QObject *parent):
         [](const NoRole* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](NoRole* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](NoRole* o) {
+            emit o->layoutChanged();
+        },
         [](NoRole* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, 0, last));
@@ -459,6 +469,12 @@ Persons::Persons(QObject *parent):
         [](const Persons* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](Persons* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](Persons* o) {
+            emit o->layoutChanged();
+        },
         [](Persons* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, 0, last));
diff --git a/tests/test_list_types_rust.cpp b/tests/test_list_types_rust.cpp
index dee9cb1..cd36f88 100644
--- a/tests/test_list_types_rust.cpp
+++ b/tests/test_list_types_rust.cpp
@@ -621,6 +621,8 @@ bool List::setData(const QModelIndex &index, const QVariant &value, int role)
 extern "C" {
     List::Private* list_new(List*,
         void (*)(const List*),
+        void (*)(List*),
+        void (*)(List*),
         void (*)(List*, quintptr, quintptr),
         void (*)(List*),
         void (*)(List*),
@@ -647,6 +649,12 @@ List::List(QObject *parent):
         [](const List* o) {
             emit o->newDataReady(QModelIndex());
         },
+        [](List* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](List* o) {
+            emit o->layoutChanged();
+        },
         [](List* o, quintptr first, quintptr last) {
             o->dataChanged(o->createIndex(first, 0, first),
                        o->createIndex(last, 0, last));
diff --git a/tests/test_tree_rust.cpp b/tests/test_tree_rust.cpp
index 48da4b0..fc34a92 100644
--- a/tests/test_tree_rust.cpp
+++ b/tests/test_tree_rust.cpp
@@ -215,6 +215,8 @@ bool Persons::setData(const QModelIndex &index, const QVariant &value, int role)
 extern "C" {
     Persons::Private* persons_new(Persons*,
         void (*)(const Persons*, option_quintptr),
+        void (*)(Persons*),
+        void (*)(Persons*),
         void (*)(Persons*, quintptr, quintptr),
         void (*)(Persons*),
         void (*)(Persons*),
@@ -246,6 +248,12 @@ Persons::Persons(QObject *parent):
                 emit o->newDataReady(QModelIndex());
             }
         },
+        [](Persons* o) {
+            emit o->layoutAboutToBeChanged();
+        },
+        [](Persons* o) {
+            emit o->layoutChanged();
+        },
         [](Persons* o, quintptr first, quintptr last) {
             quintptr frow = persons_row(o->m_d, first);
             quintptr lrow = persons_row(o->m_d, first);