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Impl fill-scale the album art to the window

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This commit is contained in:
Stephen Seo 2021-12-15 19:27:41 +09:00
parent 01ca9d146e
commit 0cc86743a4
1 changed files with 33 additions and 5 deletions
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38
src/display.rs
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@ -124,9 +124,37 @@ impl MPDDisplay {
} }
} }
fn get_album_art_transform(&mut self, ctx: &mut Context, fill: bool) -> () { fn get_album_art_transform(&mut self, ctx: &mut Context, fill_scaled: bool) -> () {
if fill { if fill_scaled {
unimplemented!("filled image not implemented"); if let Some(image) = &self.album_art {
let screen_coords: Rect = graphics::screen_coordinates(ctx);
let art_rect: Rect = image.dimensions();
// try to fit to width first
let mut x_scale = screen_coords.w / art_rect.w;
let mut y_scale = x_scale;
let mut new_width = art_rect.w * x_scale;
let mut new_height = art_rect.h * y_scale;
if new_height > screen_coords.h.abs() {
// fit to height instead
y_scale = screen_coords.h.abs() / art_rect.h;
x_scale = y_scale;
new_width = art_rect.w * x_scale;
new_height = art_rect.h * y_scale;
}
let offset_x: f32 = (screen_coords.w.abs() - new_width) / 2.0f32;
let offset_y: f32 = (screen_coords.h.abs() - new_height) / 2.0f32;
self.album_art_draw_transform = Some(Transform::Values {
dest: [offset_x, offset_y].into(),
rotation: 0.0f32,
scale: [x_scale, y_scale].into(),
offset: [0.0f32, 0.0f32].into(),
});
} else {
self.album_art_draw_transform = None;
}
} else { } else {
if let Some(image) = &self.album_art { if let Some(image) = &self.album_art {
let screen_coords: Rect = graphics::screen_coordinates(ctx); let screen_coords: Rect = graphics::screen_coordinates(ctx);
@ -427,7 +455,7 @@ impl EventHandler for MPDDisplay {
self.album_art = None; self.album_art = None;
self.album_art_draw_transform = None; self.album_art_draw_transform = None;
} else { } else {
self.get_album_art_transform(ctx, false); self.get_album_art_transform(ctx, true);
} }
} else { } else {
self.album_art = None; self.album_art = None;
@ -548,7 +576,7 @@ impl EventHandler for MPDDisplay {
} }
fn resize_event(&mut self, ctx: &mut Context, _width: f32, _height: f32) { fn resize_event(&mut self, ctx: &mut Context, _width: f32, _height: f32) {
self.get_album_art_transform(ctx, false); self.get_album_art_transform(ctx, true);
self.refresh_text_transforms(ctx) self.refresh_text_transforms(ctx)
.expect("Failed to set text transforms"); .expect("Failed to set text transforms");
} }