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Code cleanup in glfw_app::Window::scroll_window

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More code re-use, fewer unchecked units.
This commit is contained in:
Matt Brubeck 2014-12-18 10:55:14 -08:00
parent 1f342638c4
commit f534ce2ab0
1 changed files with 2 additions and 10 deletions
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12
ports/glfw/window.rs
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@ -322,16 +322,8 @@ impl Window {
/// Helper function to send a scroll event.
fn scroll_window(&self, dx: f32, dy: f32) {
let (x, y) = self.glfw_window.get_cursor_pos();
//handle hidpi displays, since GLFW returns non-hi-def coordinates.
let (backing_size, _) = self.glfw_window.get_framebuffer_size();
let (window_size, _) = self.glfw_window.get_size();
let hidpi = (backing_size as f32) / (window_size as f32);
let x = x as f32 * hidpi;
let y = y as f32 * hidpi;
self.event_queue.borrow_mut().push(Scroll(TypedPoint2D(dx, dy),
TypedPoint2D(x as i32, y as i32)));
let cursor_pos = self.cursor_position().cast().unwrap();
self.event_queue.borrow_mut().push(Scroll(TypedPoint2D(dx, dy), cursor_pos));
}
/// Helper function to set the window title in accordance with the ready state.