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Add scrollable alignment option

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This commit is contained in:
Cory Forsstrom 2023-06-12 21:04:43 -07:00
parent a057f8811b
commit 4f066b516b
2 changed files with 146 additions and 15 deletions
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52
examples/scrollable/src/main.rs
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@ -20,6 +20,7 @@ struct ScrollableDemo {
scrollbar_margin: u16,
scroller_width: u16,
current_scroll_offset: scrollable::RelativeOffset,
alignment: scrollable::Alignment,
}
#[derive(Debug, Clone, Eq, PartialEq, Copy)]
@ -32,6 +33,7 @@ enum Direction {
#[derive(Debug, Clone)]
enum Message {
SwitchDirection(Direction),
AlignmentChanged(scrollable::Alignment),
ScrollbarWidthChanged(u16),
ScrollbarMarginChanged(u16),
ScrollerWidthChanged(u16),
@ -54,6 +56,7 @@ impl Application for ScrollableDemo {
scrollbar_margin: 0,
scroller_width: 10,
current_scroll_offset: scrollable::RelativeOffset::START,
alignment: scrollable::Alignment::Start,
},
Command::none(),
)
@ -74,6 +77,15 @@ impl Application for ScrollableDemo {
self.current_scroll_offset,
)
}
Message::AlignmentChanged(alignment) => {
self.current_scroll_offset = scrollable::RelativeOffset::START;
self.alignment = alignment;
scrollable::snap_to(
SCROLLABLE_ID.clone(),
self.current_scroll_offset,
)
}
Message::ScrollbarWidthChanged(width) => {
self.scrollbar_width = width;
@ -165,10 +177,33 @@ impl Application for ScrollableDemo {
.spacing(10)
.width(Length::Fill);
let scroll_controls =
row![scroll_slider_controls, scroll_orientation_controls]
.spacing(20)
.width(Length::Fill);
let scroll_alignment_controls = column(vec![
text("Scrollable alignment:").into(),
radio(
"Start",
scrollable::Alignment::Start,
Some(self.alignment),
Message::AlignmentChanged,
)
.into(),
radio(
"End",
scrollable::Alignment::End,
Some(self.alignment),
Message::AlignmentChanged,
)
.into(),
])
.spacing(10)
.width(Length::Fill);
let scroll_controls = row![
scroll_slider_controls,
scroll_orientation_controls,
scroll_alignment_controls
]
.spacing(20)
.width(Length::Fill);
let scroll_to_end_button = || {
button("Scroll to end")
@ -204,7 +239,8 @@ impl Application for ScrollableDemo {
Properties::new()
.width(self.scrollbar_width)
.margin(self.scrollbar_margin)
.scroller_width(self.scroller_width),
.scroller_width(self.scroller_width)
.alignment(self.alignment),
))
.id(SCROLLABLE_ID.clone())
.on_scroll(Message::Scrolled),
@ -228,7 +264,8 @@ impl Application for ScrollableDemo {
Properties::new()
.width(self.scrollbar_width)
.margin(self.scrollbar_margin)
.scroller_width(self.scroller_width),
.scroller_width(self.scroller_width)
.alignment(self.alignment),
))
.style(theme::Scrollable::custom(ScrollbarCustomStyle))
.id(SCROLLABLE_ID.clone())
@ -269,7 +306,8 @@ impl Application for ScrollableDemo {
let properties = Properties::new()
.width(self.scrollbar_width)
.margin(self.scrollbar_margin)
.scroller_width(self.scroller_width);
.scroller_width(self.scroller_width)
.alignment(self.alignment);
scrollable::Direction::Both {
horizontal: properties,