migrations/egui
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Add Context::set_pixels_per_point to control the scale of the UI

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This commit is contained in:
Emil Ernerfeldt
2021-02-21 11:23:33 +01:00
parent c601db5956
commit 5f6a468812
9 changed files with 55 additions and 34 deletions
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8
egui_glium/src/lib.rs
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@@ -46,6 +46,7 @@ impl GliumInputState {
}
pub fn input_to_egui(
pixels_per_point: f32,
event: glutin::event::WindowEvent<'_>,
clipboard: Option<&mut ClipboardContext>,
input_state: &mut GliumInputState,
@@ -54,6 +55,9 @@ pub fn input_to_egui(
use glutin::event::WindowEvent;
match event {
WindowEvent::CloseRequested | WindowEvent::Destroyed => *control_flow = ControlFlow::Exit,
WindowEvent::ScaleFactorChanged { scale_factor, .. } => {
input_state.raw.pixels_per_point = Some(scale_factor as f32);
}
WindowEvent::MouseInput { state, button, .. } => {
if let Some(pos_in_points) = input_state.pointer_pos_in_points {
if let Some(button) = translate_mouse_button(button) {
@@ -71,8 +75,8 @@ pub fn input_to_egui(
..
} => {
let pos_in_points = pos2(
pos_in_pixels.x as f32 / input_state.raw.pixels_per_point.unwrap(),
pos_in_pixels.y as f32 / input_state.raw.pixels_per_point.unwrap(),
pos_in_pixels.x as f32 / pixels_per_point,
pos_in_pixels.y as f32 / pixels_per_point,
);
input_state.pointer_pos_in_points = Some(pos_in_points);
input_state