thm/line-and-surface
1
0
Fork 0
Code Issues 17 Pull requests Projects Releases Wiki Activity

add fullscreen toggle and continuous edge scrolling

Browse source
This commit is contained in:
Tomáš Mládek 2026-01-24 23:52:35 +01:00
parent 461b9cd905
commit 9c993325f4
1 changed files with 67 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

68
src/app.rs
View file

@ -69,7 +69,7 @@ impl Default for TemplateApp {
text_cache: None,
did_fit_start: false,
last_cursor_pos: None,
reset_view_requested: false,
reset_view_requested: false
}
}
}
@ -141,8 +141,10 @@ impl eframe::App for TemplateApp {
let (
escape_pressed,
f3_pressed,
f_pressed,
scroll_delta,
zoom_delta,
pointer_latest,
pointer_pos,
frame_time,
primary_down,
@ -152,8 +154,10 @@ impl eframe::App for TemplateApp {
(
i.key_pressed(egui::Key::Escape),
i.key_pressed(egui::Key::F3),
i.key_pressed(egui::Key::F),
i.smooth_scroll_delta.y,
i.zoom_delta(),
i.pointer.latest_pos(),
i.pointer.hover_pos(),
i.stable_dt,
i.pointer.primary_down(),
@ -162,6 +166,12 @@ impl eframe::App for TemplateApp {
)
});
if let Some(pos) = pointer_latest.or(pointer_pos) {
self.last_cursor_pos = Some(pos);
}
let is_fullscreen = ctx.input(|i| i.viewport().fullscreen.unwrap_or(false));
// Update FPS EMA
if frame_time > 0.0 {
const ALPHA: f32 = 0.1;
@ -227,6 +237,11 @@ impl eframe::App for TemplateApp {
let canvas_rect = response.rect;
painter.rect_filled(canvas_rect, 0.0, background_color);
// Fullscreen toggle via double-click or 'F'
if response.double_clicked() || f_pressed {
ctx.send_viewport_cmd(egui::ViewportCommand::Fullscreen(!is_fullscreen));
}
if !self.did_fit_start {
self.reset_view_requested = true;
self.did_fit_start = true;
@ -300,6 +315,57 @@ impl eframe::App for TemplateApp {
}
}
// Edge scrolling (only in fullscreen)
let edge_pointer = pointer_latest.or(self.last_cursor_pos);
if is_fullscreen {
if let Some(mouse_pos) = edge_pointer {
let dt = if frame_time > 0.0 {
frame_time
} else {
1.0 / 60.0
};
let nx = if canvas_rect.width() > 0.0 {
((mouse_pos.x - canvas_rect.left()) / canvas_rect.width()).clamp(0.0, 1.0)
} else {
0.5
};
let ny = if canvas_rect.height() > 0.0 {
((mouse_pos.y - canvas_rect.top()) / canvas_rect.height()).clamp(0.0, 1.0)
} else {
0.5
};
let edge_threshold = 0.15;
let mut vx = 0.0;
let mut vy = 0.0;
if nx < edge_threshold {
vx = (edge_threshold - nx) / edge_threshold;
} else if nx > 1.0 - edge_threshold {
vx = -(nx - (1.0 - edge_threshold)) / edge_threshold;
}
if ny < edge_threshold {
vy = (edge_threshold - ny) / edge_threshold;
} else if ny > 1.0 - edge_threshold {
vy = -(ny - (1.0 - edge_threshold)) / edge_threshold;
}
if vx != 0.0 || vy != 0.0 {
let view_w = canvas_rect.width() / self.zoom;
let view_h = canvas_rect.height() / self.zoom;
let speed_w = view_w; // per second at full intensity
let speed_h = view_h; // per second at full intensity
self.pan_x += vx * speed_w * dt;
self.pan_y += vy * speed_h * dt;
// keep scrolling even without new input events
ctx.request_repaint();
}
}
}
// Element colors
let internal_alpha = (0.3_f32 * 255.0).round() as u8;
let video_scroll_color =