init effort

imgui/src/context.rs

@@ -527,6 +527,7 @@ impl Context {
         Ui {
             ctx: self,
             font_atlas,
+            buffer: RefCell::new(Vec::new()),
         }
     }
 }

imgui/src/lib.rs

@@ -120,6 +120,7 @@ impl Context {
 pub struct Ui<'ui> {
     ctx: &'ui Context,
     font_atlas: Option<cell::RefMut<'ui, SharedFontAtlas>>,
+    buffer: cell::RefCell<Vec<u8>>,
 }
 
 impl<'ui> Ui<'ui> {

imgui/src/widget/text.rs

@@ -38,13 +38,27 @@ impl<'ui> Ui<'ui> {
     }
     /// Renders text wrapped to the end of window (or column)
     #[doc(alias = "TextWrapperd")]
-    pub fn text_wrapped(&self, text: &ImStr) {
-        unsafe { sys::igTextWrapped(fmt_ptr(), text.as_ptr()) }
+    pub fn text_wrapped(&self, text: impl AsRef<str>) {
+        let mut handle = self.buffer.borrow_mut();
+        handle.clear();
+        handle.extend(text.as_ref().as_bytes());
+        handle.push(b'\0');
+        unsafe { sys::igTextWrapped(fmt_ptr(), handle.as_ptr()) }
     }
     /// Render a text + label combination aligned the same way as value+label widgets
     #[doc(alias = "LabelText")]
-    pub fn label_text(&self, label: &ImStr, text: &ImStr) {
-        unsafe { sys::igLabelText(label.as_ptr(), fmt_ptr(), text.as_ptr()) }
+    pub fn label_text(&self, label: impl AsRef<str>, text: impl AsRef<str>) {
+        let mut handle = self.buffer.borrow_mut();
+        handle.clear();
+        handle.extend(label.as_ref().as_bytes());
+        handle.push(b'\0');
+        handle.extend(text.as_ref().as_bytes());
+        handle.push(b'\0');
+
+        let ptr_one = handle.as_ptr();
+        let ptr_two = unsafe { ptr_one.add(text.as_ref().len() + 1) };
+
+        unsafe { sys::igLabelText(ptr_one as *const _, fmt_ptr(), ptr_two as *const _) }
     }
     /// Renders text with a little bullet aligned to the typical tree node
     #[doc(alias = "BulletText")]