window task for setting resize increments

runtime/src/window.rs

@@ -171,6 +171,9 @@ pub enum Action {
 
  /// Set the window to be resizable or not.
  SetResizable(Id, bool),
+
+ /// Set the window size increment.
+ SetResizeIncrements(Id, Option<Size>),
 }
 
 /// Subscribes to the frames of the window of the running application.
@@ -404,6 +407,15 @@ pub fn set_min_size<T>(id: Id, size: Option<Size>) -> Task<T> {
  task::effect(crate::Action::Window(Action::SetMinSize(id, size)))
 }
 
+/// Set the window size increment.
+///
+/// This is usually used by apps such as terminal emulators that need "blocky" resizing.
+pub fn set_resize_increments<T>(id: Id, increments: Option<Size>) -> Task<T> {
+ task::effect(crate::Action::Window(Action::SetResizeIncrements(
+ id, increments,
+ )))
+}
+
 /// Show the [system menu] at cursor position.
 ///
 /// [system menu]: https://en.wikipedia.org/wiki/Common_menus_in_Microsoft_Windows#System_menu

winit/src/program.rs

@@ -1315,6 +1315,16 @@ fn run_action<P, C>(
  }));
  }
  }
+ window::Action::SetResizeIncrements(id, increments) => {
+ if let Some(window) = window_manager.get_mut(id) {
+ window.raw.set_resize_increments(increments.map(|x| {
+ winit::dpi::LogicalSize {
+ width: x.width,
+ height: x.height,
+ }
+ }));
+ }
+ }
  window::Action::ChangeTitle(id, title) => {
  if let Some(window) = window_manager.get_mut(id) {
  window.raw.set_title(&title);