[cimgui 1.53.1] Rename ChildWindowRounding to ChildRounding

Add deprecation warning for each renamed variant.

However, it will just fail to compile if the deprecated variant is used
inside a match statement. It is not possible to make aliases of variants
in Rust.

CHANGELOG.markdown

@@ -17,6 +17,8 @@
   - Rename `sys::ImGuiTextBuffer_append()` helper to `appendf()`.
   - Remove `anti_aliased: bool` final parameter of `sys::ImDrawList_AddPolyline`
   and `sys::ImDrawList_AddConvexPolyFilled`.
+  - Rename `ImGuiStyleVar::ChildWindowRounding` to `ImGuiStyleVar::ChildRounding`.
+  - Rename `StyleVar::ChildWindowRounding` to `StyleVar::ChildRounding`.
 
 
 ## [0.0.18] - 2017-12-23

imgui-sys/src/lib.rs

@@ -146,7 +146,7 @@ pub enum ImGuiStyleVar {
     WindowPadding,
     WindowRounding,
     WindowMinSize,
-    ChildWindowRounding,
+    ChildRounding,
     FramePadding,
     FrameRounding,
     ItemSpacing,
@@ -157,6 +157,11 @@ pub enum ImGuiStyleVar {
 }
 pub const ImGuiStyleVar_COUNT: usize = 12;
 
+impl ImGuiStyleVar {
+    #[deprecated(since = "0.0.19", note = "please use ChildRounding instead")]
+    pub const ChildWindowRounding: ImGuiStyleVar = ImGuiStyleVar::ChildRounding;
+}
+
 /// A key identifier (ImGui-side enum)
 #[repr(C)]
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]

src/lib.rs

@@ -1203,8 +1203,8 @@ impl<'ui> Ui<'ui> {
             WindowPadding(v) => unsafe { igPushStyleVarVec(ImGuiStyleVar::WindowPadding, v) },
             WindowRounding(v) => unsafe { igPushStyleVar(ImGuiStyleVar::WindowRounding, v) },
             WindowMinSize(v) => unsafe { igPushStyleVarVec(ImGuiStyleVar::WindowMinSize, v) },
-            ChildWindowRounding(v) => unsafe {
-                igPushStyleVar(ImGuiStyleVar::ChildWindowRounding, v)
+            ChildRounding(v) => unsafe {
+                igPushStyleVar(ImGuiStyleVar::ChildRounding, v)
             },
             FramePadding(v) => unsafe { igPushStyleVarVec(ImGuiStyleVar::FramePadding, v) },
             FrameRounding(v) => unsafe { igPushStyleVar(ImGuiStyleVar::FrameRounding, v) },

src/style.rs

@@ -6,7 +6,7 @@ pub enum StyleVar {
     WindowPadding(ImVec2),
     WindowRounding(f32),
     WindowMinSize(ImVec2),
-    ChildWindowRounding(f32),
+    ChildRounding(f32),
     FramePadding(ImVec2),
     FrameRounding(f32),
     ItemSpacing(ImVec2),
@@ -15,3 +15,11 @@ pub enum StyleVar {
     GrabMinSize(f32),
     ButtonTextAlign(ImVec2),
 }
+
+impl StyleVar {
+    #[allow(non_snake_case)]
+    #[deprecated(since = "0.0.19", note = "please use ChildRounding instead")]
+    pub fn ChildWindowRounding(value: f32) -> Self {
+        StyleVar::ChildRounding(value)
+    }
+}