Dominik Honnef 8af4472672 layout: add API for efficiently scrolling to and by items ...

The majority of scrolling happens by manipulating the index of the first
displayed item instead of by just manipulating the offset. This lets us
avoid having to render all items that were scrolled past.

Instead of numbers of items we could've accepted a ratio in [0, 1] to
scroll by or to, to match the data we get from scrollbars. However,
there are more use cases for scrolling by items, such as keyboard
shortcuts, go-to dialogs, etc. And converting from [0, 1] to items is
trivial for the user as long as they know the number of items, and will
usually be handled for them by a theme.

Signed-off-by: Dominik Honnef <dominik@honnef.co>

2023-02-23 18:43:43 -06:00

..

alloc_test.go

all: add //go:build lines

2021-07-26 15:17:51 +02:00

context.go

all: format comments with go fmt ./... using Go 1.19

2022-08-06 12:26:03 +02:00

doc.go

all: format comments with go fmt ./... using Go 1.19

2022-08-06 12:26:03 +02:00

example_test.go

all: [API] replace unit.Value with separate unit.Dp, unit.Sp types

2022-05-31 10:24:09 +02:00

flex.go

layout: ensure Flex{Alignment: Middle} respects minimum constraint

2022-08-16 15:48:46 +02:00

layout_test.go

layout: respect minimum constraint size in Flex.Layout

2022-07-08 09:18:13 +02:00

layout.go

layout: [API] remove FRect

2022-05-31 10:24:09 +02:00

list_test.go

layout: truncate negative List.Position.First positions to 0

2022-06-27 16:58:32 +02:00

list.go

layout: add API for efficiently scrolling to and by items

2023-02-23 18:43:43 -06:00

stack.go

all: [API] change op.Offset to take integer coordinates

2022-05-31 10:24:09 +02:00