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-rw-r--r--widgets/selector.go68
1 files changed, 63 insertions, 5 deletions
diff --git a/widgets/selector.go b/widgets/selector.go
index e773c936..46a026d7 100644
--- a/widgets/selector.go
+++ b/widgets/selector.go
@@ -1,7 +1,10 @@
package widgets
import (
+ "fmt"
+
"github.com/gdamore/tcell/v2"
+ "github.com/mattn/go-runewidth"
"git.sr.ht/~rjarry/aerc/config"
"git.sr.ht/~rjarry/aerc/lib/ui"
@@ -37,11 +40,44 @@ func (sel *Selector) Invalidate() {
}
func (sel *Selector) Draw(ctx *ui.Context) {
- ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ',
- sel.uiConfig.GetStyle(config.STYLE_SELECTOR_DEFAULT))
+ defaultSelectorStyle := sel.uiConfig.GetStyle(config.STYLE_SELECTOR_DEFAULT)
+ w, h := ctx.Width(), ctx.Height()
+ ctx.Fill(0, 0, w, h, ' ', defaultSelectorStyle)
+
+ if w < 5 || h < 1 {
+ // if width and height are that small, don't even try to draw
+ // something
+ return
+ }
+
+ y := 1
+ if h == 1 {
+ y = 0
+ }
+
+ format := "[%s]"
+
+ calculateWidth := func(space int) int {
+ neededWidth := 2
+ for i, option := range sel.options {
+ neededWidth += runewidth.StringWidth(fmt.Sprintf(format, option))
+ if i < len(sel.options)-1 {
+ neededWidth += space
+ }
+ }
+ return neededWidth - space
+ }
+
+ space := 5
+ for ; space > 0; space-- {
+ if w > calculateWidth(space) {
+ break
+ }
+ }
+
x := 2
for i, option := range sel.options {
- style := sel.uiConfig.GetStyle(config.STYLE_SELECTOR_DEFAULT)
+ style := defaultSelectorStyle
if sel.focus == i {
if sel.focused {
style = sel.uiConfig.GetStyle(config.STYLE_SELECTOR_FOCUSED)
@@ -49,8 +85,30 @@ func (sel *Selector) Draw(ctx *ui.Context) {
style = sel.uiConfig.GetStyle(config.STYLE_SELECTOR_CHOOSER)
}
}
- x += ctx.Printf(x, 1, style, "[%s]", option)
- x += 5
+
+ if space == 0 {
+ if sel.focus == i {
+ leftArrow, rightArrow := ' ', ' '
+ if i > 0 {
+ leftArrow = '❮'
+ }
+ if i < len(sel.options)-1 {
+ rightArrow = '❯'
+ }
+
+ s := runewidth.Truncate(option,
+ w-runewidth.RuneWidth(leftArrow)-runewidth.RuneWidth(rightArrow)-runewidth.StringWidth(fmt.Sprintf(format, "")),
+ "…")
+
+ nextPos := 0
+ nextPos += ctx.Printf(nextPos, y, defaultSelectorStyle, "%c", leftArrow)
+ nextPos += ctx.Printf(nextPos, y, style, format, s)
+ ctx.Printf(nextPos, y, defaultSelectorStyle, "%c", rightArrow)
+ }
+ } else {
+ x += ctx.Printf(x, y, style, format, option)
+ x += space
+ }
}
}