Add push_maybe to Column and Row

widget/src/column.rs

@@ -115,6 +115,18 @@ where
         self.children.push(child);
         self
     }
+
+    /// Adds an element to the [`Column`], if `Some`.
+    pub fn push_maybe(
+        self,
+        child: Option<impl Into<Element<'a, Message, Theme, Renderer>>>,
+    ) -> Self {
+        if let Some(child) = child {
+            self.push(child)
+        } else {
+            self
+        }
+    }
 }
 
 impl<'a, Message, Renderer> Default for Column<'a, Message, Renderer>

widget/src/helpers.rs

@@ -387,6 +387,18 @@ where
     crate::Canvas::new(program)
 }
 
+/// Creates a new [`QRCode`] widget from the given [`Data`].
+///
+/// [`Svg`]: crate::QRCode
+/// [`Data`]: crate::qr_code::Data
+#[cfg(feature = "qr_code")]
+pub fn qr_code<Theme>(data: &crate::qr_code::Data) -> crate::QRCode<'_, Theme>
+where
+    Theme: crate::qr_code::StyleSheet,
+{
+    crate::QRCode::new(data)
+}
+
 /// Creates a new [`Shader`].
 ///
 /// [`Shader`]: crate::Shader

widget/src/keyed/column.rs

@@ -124,6 +124,19 @@ where
         self.children.push(child);
         self
     }
+
+    /// Adds an element to the [`Column`], if `Some`.
+    pub fn push_maybe(
+        self,
+        key: Key,
+        child: Option<impl Into<Element<'a, Message, Theme, Renderer>>>,
+    ) -> Self {
+        if let Some(child) = child {
+            self.push(key, child)
+        } else {
+            self
+        }
+    }
 }
 
 impl<'a, Key, Message, Renderer> Default for Column<'a, Key, Message, Renderer>

widget/src/row.rs

@@ -106,6 +106,18 @@ where
         self.children.push(child);
         self
     }
+
+    /// Adds an element to the [`Row`], if `Some`.
+    pub fn push_maybe(
+        self,
+        child: Option<impl Into<Element<'a, Message, Theme, Renderer>>>,
+    ) -> Self {
+        if let Some(child) = child {
+            self.push(child)
+        } else {
+            self
+        }
+    }
 }
 
 impl<'a, Message, Renderer> Default for Row<'a, Message, Renderer>