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This commit is contained in:
Sasha Koshka
2023-02-08 00:22:40 -05:00
parent 3998d842b1
commit 6936353516
12 changed files with 448 additions and 379 deletions
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115
elements/basic/textbox.go
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@@ -3,12 +3,11 @@ package basicElements
import "image"
import "git.tebibyte.media/sashakoshka/tomo/input"
import "git.tebibyte.media/sashakoshka/tomo/theme"
import "git.tebibyte.media/sashakoshka/tomo/config"
import "git.tebibyte.media/sashakoshka/tomo/artist"
import "git.tebibyte.media/sashakoshka/tomo/textmanip"
import "git.tebibyte.media/sashakoshka/tomo/elements/core"
var textBoxCase = theme.C("basic", "textBox")
// TextBox is a single-line text input.
type TextBox struct {
*core.Core
@@ -24,6 +23,10 @@ type TextBox struct {
placeholderDrawer artist.TextDrawer
valueDrawer artist.TextDrawer
theme theme.Theme
config config.Config
c theme.Case
onKeyDown func (key input.Key, modifiers input.Modifiers) (handled bool)
onChange func ()
onScrollBoundsChange func ()
@@ -33,7 +36,7 @@ type TextBox struct {
// a value. When the value is empty, the placeholder will be displayed in gray
// text.
func NewTextBox (placeholder, value string) (element *TextBox) {
element = &TextBox { }
element = &TextBox { c: theme.C("basic", "textBox") }
element.Core, element.core = core.NewCore(element.handleResize)
element.FocusableCore,
element.focusableControl = core.NewFocusableCore (func () {
@@ -42,8 +45,6 @@ func NewTextBox (placeholder, value string) (element *TextBox) {
element.core.DamageAll()
}
})
element.placeholderDrawer.SetFace(theme.FontFaceRegular())
element.valueDrawer.SetFace(theme.FontFaceRegular())
element.placeholder = placeholder
element.placeholderDrawer.SetText([]rune(placeholder))
element.updateMinimumSize()
@@ -130,9 +131,8 @@ func (element *TextBox) HandleKeyDown(key input.Key, modifiers input.Modifiers)
element.onScrollBoundsChange()
}
if altered && element.core.HasImage () {
element.draw()
element.core.DamageAll()
if altered {
element.redo()
}
}
@@ -145,10 +145,7 @@ func (element *TextBox) SetPlaceholder (placeholder string) {
element.placeholderDrawer.SetText([]rune(placeholder))
element.updateMinimumSize()
if element.core.HasImage () {
element.draw()
element.core.DamageAll()
}
element.redo()
}
func (element *TextBox) SetValue (text string) {
@@ -161,11 +158,7 @@ func (element *TextBox) SetValue (text string) {
element.cursor = element.valueDrawer.Length()
}
element.scrollToCursor()
if element.core.HasImage () {
element.draw()
element.core.DamageAll()
}
element.redo()
}
func (element *TextBox) Value () (value string) {
@@ -203,7 +196,7 @@ func (element *TextBox) ScrollViewportBounds () (bounds image.Rectangle) {
}
func (element *TextBox) scrollViewportWidth () (width int) {
return element.Bounds().Inset(theme.Padding()).Dx()
return element.Bounds().Inset(element.config.Padding()).Dx()
}
// ScrollTo scrolls the viewport to the specified point relative to
@@ -218,10 +211,7 @@ func (element *TextBox) ScrollTo (position image.Point) {
maxPosition := contentBounds.Max.X - element.scrollViewportWidth()
if element.scroll > maxPosition { element.scroll = maxPosition }
if element.core.HasImage () {
element.draw()
element.core.DamageAll()
}
element.redo()
if element.onScrollBoundsChange != nil {
element.onScrollBoundsChange()
}
@@ -236,18 +226,6 @@ func (element *TextBox) OnScrollBoundsChange (callback func ()) {
element.onScrollBoundsChange = callback
}
func (element *TextBox) updateMinimumSize () {
textBounds := element.placeholderDrawer.LayoutBounds()
_, inset := theme.InputPattern(theme.PatternState {
Case: textBoxCase,
})
element.core.SetMinimumSize (
textBounds.Dx() +
theme.Padding() * 2 + inset[3] + inset[1],
element.placeholderDrawer.LineHeight().Round() +
theme.Padding() * 2 + inset[0] + inset[2])
}
func (element *TextBox) runOnChange () {
if element.onChange != nil {
element.onChange()
@@ -257,7 +235,7 @@ func (element *TextBox) runOnChange () {
func (element *TextBox) scrollToCursor () {
if !element.core.HasImage() { return }
bounds := element.Bounds().Inset(theme.Padding())
bounds := element.Bounds().Inset(element.config.Padding())
bounds = bounds.Sub(bounds.Min)
bounds.Max.X -= element.valueDrawer.Em().Round()
cursorPosition := element.valueDrawer.PositionOf(element.cursor)
@@ -272,28 +250,64 @@ func (element *TextBox) scrollToCursor () {
}
}
// SetTheme sets the element's theme.
func (element *TextBox) SetTheme (new theme.Theme) {
element.theme = new
face := element.theme.FontFace (
theme.FontStyleRegular,
theme.FontSizeNormal,
element.c)
element.placeholderDrawer.SetFace(face)
element.valueDrawer.SetFace(face)
element.updateMinimumSize()
element.redo()
}
// SetConfig sets the element's configuration.
func (element *TextBox) SetConfig (new config.Config) {
element.config = new
element.updateMinimumSize()
element.redo()
}
func (element *TextBox) updateMinimumSize () {
textBounds := element.placeholderDrawer.LayoutBounds()
inset := element.theme.Inset(theme.PatternInput, element.c)
element.core.SetMinimumSize (
textBounds.Dx() +
element.config.Padding() * 2 + inset[3] + inset[1],
element.placeholderDrawer.LineHeight().Round() +
element.config.Padding() * 2 + inset[0] + inset[2])
}
func (element *TextBox) redo () {
if element.core.HasImage () {
element.draw()
element.core.DamageAll()
}
}
func (element *TextBox) draw () {
bounds := element.Bounds()
// FIXME: take index into account
pattern, inset := theme.InputPattern(theme.PatternState {
Case: textBoxCase,
state := theme.PatternState {
Disabled: !element.Enabled(),
Focused: element.Focused(),
})
}
pattern := element.theme.Pattern(theme.PatternSunken, element.c, state)
artist.FillRectangle(element, pattern, bounds)
if len(element.text) == 0 && !element.Focused() {
// draw placeholder
textBounds := element.placeholderDrawer.LayoutBounds()
offset := bounds.Min.Add (image.Point {
X: theme.Padding() + inset[3],
Y: theme.Padding() + inset[0],
})
foreground, _ := theme.ForegroundPattern(theme.PatternState {
Case: textBoxCase,
Disabled: true,
X: element.config.Padding(),
Y: element.config.Padding(),
})
foreground := element.theme.Pattern (
theme.PatternForeground, element.c,
theme.PatternState { Disabled: true })
element.placeholderDrawer.Draw (
element,
foreground,
@@ -302,13 +316,11 @@ func (element *TextBox) draw () {
// draw input value
textBounds := element.valueDrawer.LayoutBounds()
offset := bounds.Min.Add (image.Point {
X: theme.Padding() + inset[3] - element.scroll,
Y: theme.Padding() + inset[0],
})
foreground, _ := theme.ForegroundPattern(theme.PatternState {
Case: textBoxCase,
Disabled: !element.Enabled(),
X: element.config.Padding() - element.scroll,
Y: element.config.Padding(),
})
foreground := element.theme.Pattern (
theme.PatternForeground, element.c, state)
element.valueDrawer.Draw (
element,
foreground,
@@ -318,9 +330,6 @@ func (element *TextBox) draw () {
// cursor
cursorPosition := element.valueDrawer.PositionOf (
element.cursor)
foreground, _ := theme.ForegroundPattern(theme.PatternState {
Case: textBoxCase,
})
artist.Line (
element,
foreground, 1,