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Basic elements conform to new API

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This commit is contained in:
Sasha Koshka
2023-01-31 14:54:43 -05:00
parent 81fc82c46e
commit ee424b9125
10 changed files with 43 additions and 103 deletions
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66
elements/basic/container.go
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@@ -30,7 +30,7 @@ type Container struct {
// NewContainer creates a new container.
func NewContainer (layout tomo.Layout) (element *Container) {
element = &Container { }
element.Core, element.core = core.NewCore(element)
element.Core, element.core = core.NewCore(element.redoAll)
element.SetLayout(layout)
return
}
@@ -39,8 +39,7 @@ func NewContainer (layout tomo.Layout) (element *Container) {
func (element *Container) SetLayout (layout tomo.Layout) {
element.layout = layout
if element.core.HasImage() {
element.recalculate()
element.draw()
element.redoAll()
element.core.DamageAll()
}
}
@@ -51,7 +50,7 @@ func (element *Container) SetLayout (layout tomo.Layout) {
func (element *Container) Adopt (child tomo.Element, expand bool) {
// set event handlers
child.OnDamage (func (region tomo.Canvas) {
element.drawChildRegion(child, region)
element.core.DamageRegion(region.Bounds())
})
child.OnMinimumSizeChange(element.updateMinimumSize)
if child0, ok := child.(tomo.Flexible); ok {
@@ -78,8 +77,7 @@ func (element *Container) Adopt (child tomo.Element, expand bool) {
element.updateMinimumSize()
element.reflectChildProperties()
if element.core.HasImage() && !element.warping {
element.recalculate()
element.draw()
element.redoAll()
element.core.DamageAll()
}
}
@@ -101,8 +99,7 @@ func (element *Container) Warp (callback func ()) {
// and redraw every time, because although that is the most likely use
// case, it is not the only one.
if element.core.HasImage() {
element.recalculate()
element.draw()
element.redoAll()
element.core.DamageAll()
}
}
@@ -123,13 +120,13 @@ func (element *Container) Disown (child tomo.Element) {
element.updateMinimumSize()
element.reflectChildProperties()
if element.core.HasImage() && !element.warping {
element.recalculate()
element.draw()
element.redoAll()
element.core.DamageAll()
}
}
func (element *Container) clearChildEventHandlers (child tomo.Element) {
child.DrawTo(nil)
child.OnDamage(nil)
child.OnMinimumSizeChange(nil)
if child0, ok := child.(tomo.Focusable); ok {
@@ -151,8 +148,7 @@ func (element *Container) DisownAll () {
element.updateMinimumSize()
element.reflectChildProperties()
if element.core.HasImage() && !element.warping {
element.recalculate()
element.draw()
element.redoAll()
element.core.DamageAll()
}
}
@@ -182,7 +178,7 @@ func (element *Container) Child (index int) (child tomo.Element) {
// there are no children at the coordinates, this method will return nil.
func (element *Container) ChildAt (point image.Point) (child tomo.Element) {
for _, entry := range element.children {
if point.In(entry.Bounds().Add(entry.Position)) {
if point.In(entry.Bounds) {
child = entry.Element
}
}
@@ -192,7 +188,7 @@ func (element *Container) ChildAt (point image.Point) (child tomo.Element) {
func (element *Container) childPosition (child tomo.Element) (position image.Point) {
for _, entry := range element.children {
if entry.Element == child {
position = entry.Position
position = entry.Bounds.Min
break
}
}
@@ -200,10 +196,21 @@ func (element *Container) childPosition (child tomo.Element) (position image.Poi
return
}
func (element *Container) Resize (width, height int) {
element.core.AllocateCanvas(width, height)
func (element *Container) redoAll () {
// do a layout
element.recalculate()
element.draw()
// draw a background
bounds := element.core.Bounds()
pattern, _ := theme.BackgroundPattern (theme.PatternState {
Case: containerCase,
})
artist.FillRectangle(element.core, pattern, bounds)
// resize all elements, having them draw onto us
for _, entry := range element.children {
entry.DrawTo(tomo.Cut(element, entry.Bounds))
}
}
func (element *Container) HandleMouseDown (x, y int, button tomo.Button) {
@@ -471,28 +478,3 @@ func (element *Container) recalculate () {
bounds := element.Bounds()
element.layout.Arrange(element.children, bounds.Dx(), bounds.Dy())
}
func (element *Container) draw () {
bounds := element.core.Bounds()
pattern, _ := theme.BackgroundPattern (theme.PatternState {
Case: containerCase,
})
artist.FillRectangle(element.core, pattern, bounds)
for _, entry := range element.children {
artist.Paste(element.core, entry, entry.Position)
}
}
func (element *Container) drawChildRegion (child tomo.Element, region tomo.Canvas) {
if element.warping { return }
for _, entry := range element.children {
if entry.Element == child {
artist.Paste(element.core, region, entry.Position)
element.core.DamageRegion (
region.Bounds().Add(entry.Position))
break
}
}
}