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Allow attaching custom user data to a screenshot command (#5416)

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This lets users trigger a screenshot from anywhere, and then when they
get back the results they have some context about what part of their
code triggered the screenshot.
This commit is contained in:
Emil Ernerfeldt
2024-12-03 10:08:55 +01:00
committed by GitHub
parent 6a1131f1c9
commit a9c76ba7a6
9 changed files with 129 additions and 23 deletions
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45
crates/eframe/src/native/wgpu_integration.rs
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@@ -643,10 +643,16 @@ impl<'app> WgpuWinitRunning<'app> {
let clipped_primitives = egui_ctx.tessellate(shapes, pixels_per_point);
let screenshot_requested = viewport
.actions_requested
.take(&ActionRequested::Screenshot)
.is_some();
let mut screenshot_commands = vec![];
viewport.actions_requested.retain(|cmd| {
if let ActionRequested::Screenshot(info) = cmd {
screenshot_commands.push(info.clone());
false
} else {
true
}
});
let screenshot_requested = !screenshot_commands.is_empty();
let (vsync_secs, screenshot) = painter.paint_and_update_textures(
viewport_id,
pixels_per_point,
@@ -655,19 +661,32 @@ impl<'app> WgpuWinitRunning<'app> {
&textures_delta,
screenshot_requested,
);
if let Some(screenshot) = screenshot {
egui_winit
.egui_input_mut()
.events
.push(egui::Event::Screenshot {
viewport_id,
image: screenshot.into(),
});
match (screenshot_requested, screenshot) {
(false, None) => {}
(true, Some(screenshot)) => {
let screenshot = Arc::new(screenshot);
for user_data in screenshot_commands {
egui_winit
.egui_input_mut()
.events
.push(egui::Event::Screenshot {
viewport_id,
user_data,
image: screenshot.clone(),
});
}
}
(true, None) => {
log::error!("Bug in egui_wgpu: screenshot requested, but no screenshot was taken");
}
(false, Some(_)) => {
log::warn!("Bug in egui_wgpu: Got screenshot without requesting it");
}
}
for action in viewport.actions_requested.drain() {
match action {
ActionRequested::Screenshot => {
ActionRequested::Screenshot { .. } => {
// already handled above
}
ActionRequested::Cut => {