refactor(qt): simplify impl_static_cast

Author: Berrysoft

src/ui/qt/button.rs

@@ -162,37 +162,17 @@ unsafe impl ExternType for QtCheckState {
     type Kind = cxx::kind::Trivial;
 }
 
-impl_static_cast!(
-    ffi::QAbstractButton,
-    ffi::QWidget,
-    ffi::static_cast_QAbstractButton_QWidget,
-    ffi::static_cast_mut_QAbstractButton_QWidget
-);
-
-impl_static_cast!(
-    ffi::QPushButton,
-    ffi::QAbstractButton,
-    ffi::static_cast_QPushButton_QAbstractButton,
-    ffi::static_cast_mut_QPushButton_QAbstractButton
-);
+impl_static_cast!(ffi::QAbstractButton, ffi::QWidget);
+
+impl_static_cast!(ffi::QPushButton, ffi::QAbstractButton);
 
 impl_static_cast_propogate!(ffi::QPushButton, ffi::QAbstractButton, ffi::QWidget);
 
-impl_static_cast!(
-    ffi::QCheckBox,
-    ffi::QAbstractButton,
-    ffi::static_cast_QCheckBox_QAbstractButton,
-    ffi::static_cast_mut_QCheckBox_QAbstractButton
-);
+impl_static_cast!(ffi::QCheckBox, ffi::QAbstractButton);
 
 impl_static_cast_propogate!(ffi::QCheckBox, ffi::QAbstractButton, ffi::QWidget);
 
-impl_static_cast!(
-    ffi::QRadioButton,
-    ffi::QAbstractButton,
-    ffi::static_cast_QRadioButton_QAbstractButton,
-    ffi::static_cast_mut_QRadioButton_QAbstractButton
-);
+impl_static_cast!(ffi::QRadioButton, ffi::QAbstractButton);
 
 impl_static_cast_propogate!(ffi::QRadioButton, ffi::QAbstractButton, ffi::QWidget);
 

src/ui/qt/combo_box.rs

@@ -142,12 +142,7 @@ impl<const E: bool> ComboBoxImpl<E> {
 pub type ComboBox = ComboBoxImpl<false>;
 pub type ComboEntry = ComboBoxImpl<true>;
 
-impl_static_cast!(
-    ffi::QComboBox,
-    ffi::QWidget,
-    ffi::static_cast_QComboBox_QWidget,
-    ffi::static_cast_mut_QComboBox_QWidget
-);
+impl_static_cast!(ffi::QComboBox, ffi::QWidget);
 
 #[cxx::bridge]
 mod ffi {

src/ui/qt/edit.rs

@@ -269,19 +269,9 @@ unsafe impl ExternType for QLineEditEchoMode {
     type Kind = cxx::kind::Trivial;
 }
 
-impl_static_cast!(
-    ffi::QLineEdit,
-    ffi::QWidget,
-    ffi::static_cast_QLineEdit_QWidget,
-    ffi::static_cast_mut_QLineEdit_QWidget
-);
-
-impl_static_cast!(
-    ffi::QTextEdit,
-    ffi::QWidget,
-    ffi::static_cast_QTextEdit_QWidget,
-    ffi::static_cast_mut_QTextEdit_QWidget
-);
+impl_static_cast!(ffi::QLineEdit, ffi::QWidget);
+
+impl_static_cast!(ffi::QTextEdit, ffi::QWidget);
 
 #[cxx::bridge]
 mod ffi {

src/ui/qt/label.rs

@@ -90,12 +90,7 @@ impl Label {
     }
 }
 
-impl_static_cast!(
-    ffi::QLabel,
-    ffi::QWidget,
-    ffi::static_cast_QLabel_QWidget,
-    ffi::static_cast_mut_QLabel_QWidget
-);
+impl_static_cast!(ffi::QLabel, ffi::QWidget);
 
 #[cxx::bridge]
 mod ffi {

src/ui/qt/list_box.rs

@@ -126,12 +126,7 @@ impl ListBox {
     }
 }
 
-impl_static_cast!(
-    ffi::QListWidget,
-    ffi::QWidget,
-    ffi::static_cast_QListWidget_QWidget,
-    ffi::static_cast_mut_QListWidget_QWidget
-);
+impl_static_cast!(ffi::QListWidget, ffi::QWidget);
 
 #[cxx::bridge]
 mod ffi {

src/ui/qt/mod.rs

@@ -68,14 +68,18 @@ impl<T> StaticCastTo<T> for T {
 }
 
 macro_rules! impl_static_cast {
-    ($t:ty, $tbase:ty, $f:expr, $fmut:expr) => {
+    ($t:ty, $tbase:ty) => {
         impl $crate::ui::StaticCastTo<$tbase> for $t {
             fn static_cast(&self) -> &$tbase {
-                unsafe { std::mem::transmute(self) }
+                unsafe { &*(self as *const Self).cast() }
             }
 
             fn static_cast_mut(self: ::std::pin::Pin<&mut Self>) -> ::std::pin::Pin<&mut $tbase> {
-                unsafe { std::mem::transmute(self) }
+                unsafe {
+                    ::std::pin::Pin::new_unchecked(
+                        &mut *(self.get_unchecked_mut() as *mut Self).cast(),
+                    )
+                }
             }
         }
     };

src/ui/qt/progress.rs

@@ -85,12 +85,7 @@ impl Progress {
     }
 }
 
-impl_static_cast!(
-    ffi::QProgressBar,
-    ffi::QWidget,
-    ffi::static_cast_QProgressBar_QWidget,
-    ffi::static_cast_mut_QProgressBar_QWidget
-);
+impl_static_cast!(ffi::QProgressBar, ffi::QWidget);
 
 #[cxx::bridge]
 mod ffi {

src/ui/qt/window.rs

@@ -143,12 +143,7 @@ impl Drop for Window {
     }
 }
 
-impl_static_cast!(
-    ffi::QMainWindow,
-    ffi::QWidget,
-    ffi::static_cast_QMainWindow_QWidget,
-    ffi::static_cast_mut_QMainWindow_QWidget
-);
+impl_static_cast!(ffi::QMainWindow, ffi::QWidget);
 
 #[cxx::bridge]
 mod ffi {