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Containers now share a bunch of code

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This commit is contained in:
Sasha Koshka
2023-04-19 00:29:25 -04:00
parent ac58a43220
commit afdecc2c8b
4 changed files with 95 additions and 202 deletions
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73
elements/list.go
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@@ -7,24 +7,15 @@ import "git.tebibyte.media/sashakoshka/tomo/canvas"
import "git.tebibyte.media/sashakoshka/tomo/artist"
import "git.tebibyte.media/sashakoshka/tomo/default/theme"
// TODO: make hidden variants:
// vertical: one column.
// flow: acts like DocumentContainer with all inline elements.
// create wrapper elements for making a plain version of each of these, but keep
// the implementations private (but with public methods) so they can be included
// in other elements.
// have table be a very tabular thing with named columns that can be sorted,
// resized, etc.
type listEntity interface {
tomo.ContainerEntity
tomo.ScrollableEntity
}
type List struct {
container
entity listEntity
scratch map[tomo.Element] scratchEntry
scroll image.Point
contentBounds image.Rectangle
columnSizes []int
@@ -41,18 +32,16 @@ type List struct {
func NewList (columns int, children ...tomo.Element) (element *List) {
if columns < 1 { columns = 1 }
element = &List { selected: -1 }
element.scratch = make(map[tomo.Element] scratchEntry)
element.columnSizes = make([]int, columns)
element.theme.Case = tomo.C("tomo", "list")
element.entity = tomo.NewEntity(element).(listEntity)
element.container.entity = element.entity
element.minimumSize = element.updateMinimumSize
element.init()
element.Adopt(children...)
return
}
func (element *List) Entity () tomo.Entity {
return element.entity
}
func (element *List) Draw (destination canvas.Canvas) {
rocks := make([]image.Rectangle, element.entity.CountChildren())
for index := 0; index < element.entity.CountChildren(); index ++ {
@@ -123,54 +112,6 @@ func (element *List) Layout () {
}
}
func (element *List) Adopt (children ...tomo.Element) {
for _, child := range children {
element.entity.Adopt(child)
element.scratch[child] = scratchEntry { }
}
element.updateMinimumSize()
element.entity.Invalidate()
element.entity.InvalidateLayout()
}
func (element *List) Disown (children ...tomo.Element) {
for _, child := range children {
index := element.entity.IndexOf(child)
if index < 0 { return }
if index == element.selected {
element.selected = -1
element.entity.SelectChild(index, false)
}
element.entity.Disown(index)
delete(element.scratch, child)
}
element.updateMinimumSize()
element.entity.Invalidate()
element.entity.InvalidateLayout()
}
func (element *List) DisownAll () {
func () {
for index := 0; index < element.entity.CountChildren(); index ++ {
index := index
defer element.entity.Disown(index)
}
} ()
element.scratch = make(map[tomo.Element] scratchEntry)
element.updateMinimumSize()
element.entity.Invalidate()
element.entity.InvalidateLayout()
}
func (element *List) Child (index int) tomo.Element {
if index < 0 || index >= element.entity.CountChildren() { return nil }
return element.entity.Child(index)
}
func (element *List) CountChildren () int {
return element.entity.CountChildren()
}
func (element *List) HandleChildMouseDown (x, y int, button input.Button, child tomo.Element) {
if child, ok := child.(tomo.Selectable); ok {
index := element.entity.IndexOf(child)
@@ -185,12 +126,6 @@ func (element *List) HandleChildMouseDown (x, y int, button input.Button, child
func (element *List) HandleChildMouseUp (int, int, input.Button, tomo.Element) { }
func (element *List) HandleChildMinimumSizeChange (child tomo.Element) {
element.updateMinimumSize()
element.entity.Invalidate()
element.entity.InvalidateLayout()
}
func (element *List) HandleChildFlexibleHeightChange (child tomo.Flexible) {
element.updateMinimumSize()
element.entity.Invalidate()