Add macro'd Default implementations

src/lib.rs

@@ -61,6 +61,16 @@ macro_rules! println_stderr(
     } }
 );
 
+macro_rules! new_default(
+    ($c:ident) => {
+        impl Default for $c {
+            fn default() -> Self {
+                Self::new()
+            }
+        }
+    }
+    );
+
 
 pub mod event;
 pub mod view;
@@ -119,11 +129,7 @@ pub struct Cursive {
     running: bool,
 }
 
-impl Default for Cursive {
-    fn default() -> Self {
-        Self::new()
-    }
-}
+new_default!(Cursive);
 
 // Use the Ncurses backend.
 // TODO: make this feature-driven

src/menubar.rs

@@ -34,11 +34,7 @@ pub struct Menubar {
     state: State,
 }
 
-impl Default for Menubar {
-    fn default() -> Self {
-        Self::new()
-    }
-}
+new_default!(Menubar);
 
 impl Menubar {
     pub fn new() -> Self {

src/view/checkbox.rs

@@ -12,12 +12,12 @@ pub struct Checkbox {
     checked: bool,
 }
 
+new_default!(Checkbox);
+
 impl Checkbox {
     /// Creates a new, unchecked checkbox.
     pub fn new() -> Self {
-        Checkbox {
-            checked: false,
-        }
+        Checkbox { checked: false }
     }
 
     /// Toggles the checkbox state.

src/view/edit_view.rs

@@ -27,11 +27,7 @@ pub struct EditView {
                          * TODO: add a max text length? */
 }
 
-impl Default for EditView {
-    fn default() -> Self {
-        Self::new()
-    }
-}
+new_default!(EditView);
 
 impl EditView {
     /// Creates a new, empty edit view.

src/view/list_view.rs

@@ -44,11 +44,7 @@ pub struct ListView {
     focus: usize,
 }
 
-impl Default for ListView {
-    fn default() -> Self {
-        Self::new()
-    }
-}
+new_default!(ListView);
 
 impl ListView {
     /// Creates a new, empty `ListView`.

src/view/stack_view.rs

@@ -22,11 +22,7 @@ struct Layer {
     virgin: bool,
 }
 
-impl Default for StackView {
-    fn default() -> Self {
-        Self::new()
-    }
-}
+new_default!(StackView);
 
 impl StackView {
     /// Creates a new empty StackView

src/view/view_path.rs

@@ -5,11 +5,7 @@ pub struct ViewPath {
     pub path: Vec<usize>,
 }
 
-impl Default for ViewPath {
-    fn default() -> Self {
-        Self::new()
-    }
-}
+new_default!(ViewPath);
 
 impl ViewPath {
     /// Creates a new empty path.