func (t *TextBox) DoubleClick(ev gxui.MouseEvent) (consume bool) {
if p, ok := t.RuneIndexAt(ev.Point); ok {
s, e := t.controller.WordAt(p)
if ev.Modifier&gxui.ModControl != 0 {
t.controller.AddSelection(gxui.CreateTextSelection(s, e, false))
} else {
t.controller.SetSelection(gxui.CreateTextSelection(s, e, false))
}
}
t.InputEventHandler.DoubleClick(ev)
return true
}
func (t *CodeEditor) KeyPress(ev gxui.KeyboardEvent) (consume bool) {
switch ev.Key {
case gxui.KeyTab:
replace := true
for _, sel := range t.controller.Selections() {
s, e := sel.Range()
if t.controller.LineIndex(s) != t.controller.LineIndex(e) {
replace = false
break
}
}
switch {
case replace:
t.controller.ReplaceAll(strings.Repeat(" ", t.tabWidth))
t.controller.Deselect(false)
case ev.Modifier.Shift():
t.controller.UnindentSelection(t.tabWidth)
default:
t.controller.IndentSelection(t.tabWidth)
}
return true
case gxui.KeySpace:
if ev.Modifier.Control() {
t.ShowSuggestionList()
return
}
case gxui.KeyUp:
fallthrough
case gxui.KeyDown:
if t.IsSuggestionListShowing() {
return t.suggestionList.KeyPress(ev)
}
case gxui.KeyLeft:
t.HideSuggestionList()
case gxui.KeyRight:
t.HideSuggestionList()
case gxui.KeyEnter:
controller := t.controller
if t.IsSuggestionListShowing() {
text := t.suggestionAdapter.Suggestion(t.suggestionList.Selected()).Code()
s, e := controller.WordAt(t.controller.LastCaret())
controller.SetSelection(gxui.CreateTextSelection(s, e, false))
controller.ReplaceAll(text)
controller.Deselect(false)
t.HideSuggestionList()
} else {
t.controller.ReplaceWithNewlineKeepIndent()
}
return true
case gxui.KeyEscape:
if t.IsSuggestionListShowing() {
t.HideSuggestionList()
return true
}
}
return t.TextBox.KeyPress(ev)
}
func (t *TextBox) lineMouseDown(line TextBoxLine, ev gxui.MouseEvent) {
if ev.Button == gxui.MouseButtonLeft {
p := line.RuneIndexAt(ev.Point)
t.selectionDragging = true
t.selectionDrag = gxui.CreateTextSelection(p, p, false)
if !ev.Modifier.Control() {
t.controller.SetCaret(p)
}
}
}
func (t *TextBox) MouseMove(ev gxui.MouseEvent) {
t.List.MouseMove(ev)
if t.selectionDragging {
if p, ok := t.RuneIndexAt(ev.Point); ok {
t.selectionDrag = gxui.CreateTextSelection(t.selectionDrag.From(), p, false)
t.selectionDragging = true
t.onRedrawLines.Fire()
}
}
}
func (t *DefaultTextBoxLine) PaintSelections(c gxui.Canvas) {
controller := t.textbox.controller
ls, le := controller.LineStart(t.lineIndex), controller.LineEnd(t.lineIndex)
selections := controller.Selections()
if t.textbox.selectionDragging {
interval.Replace(&selections, t.textbox.selectionDrag)
}
interval.Visit(&selections, gxui.CreateTextSelection(ls, le, false), func(s, e uint64, _ int) {
if s < e {
x := t.outer.MeasureRunes(ls, int(s)).W
m := t.outer.MeasureRunes(int(s), int(e))
top := math.Point{X: t.caretWidth + x, Y: 0}
bottom := top.Add(m.Point())
t.outer.PaintSelection(c, top, bottom)
}
})
}