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Refactor: add `TitleBar::new` in `window.rs`

This commit is contained in:
Emil Ernerfeldt 2024-07-31 18:44:05 +02:00
parent dfbc7f0d19
commit 8dc2ba2fe9
1 changed files with 54 additions and 54 deletions
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108
crates/egui/src/containers/window.rs
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@ -528,7 +528,7 @@ impl<'open> Window<'open> {
frame.content_ui.spacing_mut().item_spacing.y = title_content_spacing;
let title_bar = if with_title_bar {
let title_bar = show_title_bar(
let title_bar = TitleBar::new(
&mut frame.content_ui,
title,
show_close_button,
@ -1040,60 +1040,60 @@ struct TitleBar {
rect: Rect,
}
fn show_title_bar(
ui: &mut Ui,
title: WidgetText,
show_close_button: bool,
collapsing: &mut CollapsingState,
collapsible: bool,
) -> TitleBar {
let inner_response = ui.horizontal(|ui| {
let height = ui
.fonts(|fonts| title.font_height(fonts, ui.style()))
.max(ui.spacing().interact_size.y);
ui.set_min_height(height);
let item_spacing = ui.spacing().item_spacing;
let button_size = Vec2::splat(ui.spacing().icon_width);
let pad = (height - button_size.y) / 2.0; // calculated so that the icon is on the diagonal (if window padding is symmetrical)
if collapsible {
ui.add_space(pad);
collapsing.show_default_button_with_size(ui, button_size);
}
let title_galley = title.into_galley(
ui,
Some(crate::TextWrapMode::Extend),
f32::INFINITY,
TextStyle::Heading,
);
let minimum_width = if collapsible || show_close_button {
// If at least one button is shown we make room for both buttons (since title is centered):
2.0 * (pad + button_size.x + item_spacing.x) + title_galley.size().x
} else {
pad + title_galley.size().x + pad
};
let min_rect = Rect::from_min_size(ui.min_rect().min, vec2(minimum_width, height));
let id = ui.advance_cursor_after_rect(min_rect);
TitleBar {
id,
title_galley,
min_rect,
rect: Rect::NAN, // Will be filled in later
}
});
let title_bar = inner_response.inner;
let rect = inner_response.response.rect;
TitleBar { rect, ..title_bar }
}
impl TitleBar {
fn new(
ui: &mut Ui,
title: WidgetText,
show_close_button: bool,
collapsing: &mut CollapsingState,
collapsible: bool,
) -> Self {
let inner_response = ui.horizontal(|ui| {
let height = ui
.fonts(|fonts| title.font_height(fonts, ui.style()))
.max(ui.spacing().interact_size.y);
ui.set_min_height(height);
let item_spacing = ui.spacing().item_spacing;
let button_size = Vec2::splat(ui.spacing().icon_width);
let pad = (height - button_size.y) / 2.0; // calculated so that the icon is on the diagonal (if window padding is symmetrical)
if collapsible {
ui.add_space(pad);
collapsing.show_default_button_with_size(ui, button_size);
}
let title_galley = title.into_galley(
ui,
Some(crate::TextWrapMode::Extend),
f32::INFINITY,
TextStyle::Heading,
);
let minimum_width = if collapsible || show_close_button {
// If at least one button is shown we make room for both buttons (since title is centered):
2.0 * (pad + button_size.x + item_spacing.x) + title_galley.size().x
} else {
pad + title_galley.size().x + pad
};
let min_rect = Rect::from_min_size(ui.min_rect().min, vec2(minimum_width, height));
let id = ui.advance_cursor_after_rect(min_rect);
Self {
id,
title_galley,
min_rect,
rect: Rect::NAN, // Will be filled in later
}
});
let title_bar = inner_response.inner;
let rect = inner_response.response.rect;
Self { rect, ..title_bar }
}
/// Finishes painting of the title bar when the window content size already known.
///
/// # Parameters