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Simplify file_dialog example

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This commit is contained in:
Emil Ernerfeldt 2022-04-30 15:49:22 +02:00
parent 8a2470b45e
commit c869f67066
1 changed files with 32 additions and 34 deletions
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66
examples/file_dialog/src/main.rs
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@ -60,40 +60,7 @@ impl eframe::App for MyApp {
}
});
self.detect_files_being_dropped(ctx);
}
}
impl MyApp {
fn detect_files_being_dropped(&mut self, ctx: &egui::Context) {
use egui::*;
// Preview hovering files:
if !ctx.input().raw.hovered_files.is_empty() {
let mut text = "Dropping files:\n".to_owned();
for file in &ctx.input().raw.hovered_files {
if let Some(path) = &file.path {
text += &format!("\n{}", path.display());
} else if !file.mime.is_empty() {
text += &format!("\n{}", file.mime);
} else {
text += "\n???";
}
}
let painter =
ctx.layer_painter(LayerId::new(Order::Foreground, Id::new("file_drop_target")));
let screen_rect = ctx.input().screen_rect();
painter.rect_filled(screen_rect, 0.0, Color32::from_black_alpha(192));
painter.text(
screen_rect.center(),
Align2::CENTER_CENTER,
text,
TextStyle::Heading.resolve(&ctx.style()),
Color32::WHITE,
);
}
preview_files_being_dropped(ctx);
// Collect dropped files:
if !ctx.input().raw.dropped_files.is_empty() {
@ -101,3 +68,34 @@ impl MyApp {
}
}
}
/// Preview hovering files:
fn preview_files_being_dropped(ctx: &egui::Context) {
use egui::*;
if !ctx.input().raw.hovered_files.is_empty() {
let mut text = "Dropping files:\n".to_owned();
for file in &ctx.input().raw.hovered_files {
if let Some(path) = &file.path {
text += &format!("\n{}", path.display());
} else if !file.mime.is_empty() {
text += &format!("\n{}", file.mime);
} else {
text += "\n???";
}
}
let painter =
ctx.layer_painter(LayerId::new(Order::Foreground, Id::new("file_drop_target")));
let screen_rect = ctx.input().screen_rect();
painter.rect_filled(screen_rect, 0.0, Color32::from_black_alpha(192));
painter.text(
screen_rect.center(),
Align2::CENTER_CENTER,
text,
TextStyle::Heading.resolve(&ctx.style()),
Color32::WHITE,
);
}
}