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Allow deleting or replacing selections

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This commit is contained in:
EnumDev 2025-06-12 14:03:25 +03:00
parent 5d64673519
commit 12649af8e3
2 changed files with 66 additions and 11 deletions
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12
src/buffer.go
View File

@ -63,6 +63,18 @@ func (buffer *Buffer) Save() error {
return nil
}
func (buffer *Buffer) GetSelectionEdges() (int, int) {
if buffer.Selection == nil {
return -1, -1
}
if buffer.Selection.selectionStart < buffer.Selection.selectionEnd {
return buffer.Selection.selectionStart, buffer.Selection.selectionEnd
} else {
return buffer.Selection.selectionEnd, buffer.Selection.selectionStart
}
}
func (buffer *Buffer) GetSelectedText() string {
if buffer.Selection == nil {
return ""

65
src/window.go
View File

@ -90,16 +90,7 @@ func (window *Window) drawCurrentBuffer() {
// Change background if selected
if buffer.Selection != nil {
if buffer.Selection.selectionEnd >= buffer.Selection.selectionStart && i >= buffer.Selection.selectionStart && i <= buffer.Selection.selectionEnd {
style = style.Background(tcell.Color243)
// Show selection on entire tab space
if r == '\t' {
for j := 0; j < 4; j++ {
window.screen.SetContent(x+j-buffer.OffsetX, y-buffer.OffsetY, r, nil, style)
}
}
} else if i <= buffer.Selection.selectionStart && i >= buffer.Selection.selectionEnd {
if edge1, edge2 := buffer.GetSelectionEdges(); i >= edge1 && i <= edge2 {
style = style.Background(tcell.Color243)
// Show selection on entire tab space
@ -349,7 +340,17 @@ func (window *Window) input(ev *tcell.EventKey) {
str := window.CurrentBuffer.Contents
index := window.CurrentBuffer.CursorPos
if index != 0 {
if window.CurrentBuffer.Selection != nil {
edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
if edge2 == len(window.CurrentBuffer.Contents) {
edge2 = len(window.CurrentBuffer.Contents) - 1
}
str = str[:edge1] + str[edge2+1:]
window.CurrentBuffer.Contents = str
window.SetCursorPos(edge1)
window.CurrentBuffer.Selection = nil
} else if index != 0 {
str = str[:index-1] + str[index:]
window.CurrentBuffer.Contents = str
window.SetCursorPos(window.CurrentBuffer.CursorPos - 1)
@ -367,6 +368,20 @@ func (window *Window) input(ev *tcell.EventKey) {
} else if ev.Key() == tcell.KeyTab {
if window.CursorMode == CursorModeBuffer {
str := window.CurrentBuffer.Contents
// Remove selected text
if window.CurrentBuffer.Selection != nil {
edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
if edge2 == len(window.CurrentBuffer.Contents) {
edge2 = len(window.CurrentBuffer.Contents) - 1
}
str = str[:edge1] + str[edge2+1:]
window.CurrentBuffer.Contents = str
window.SetCursorPos(edge1)
window.CurrentBuffer.Selection = nil
}
index := window.CurrentBuffer.CursorPos
if index == len(str) {
@ -380,6 +395,20 @@ func (window *Window) input(ev *tcell.EventKey) {
} else if ev.Key() == tcell.KeyEnter {
if window.CursorMode == CursorModeBuffer {
str := window.CurrentBuffer.Contents
// Remove selected text
if window.CurrentBuffer.Selection != nil {
edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
if edge2 == len(window.CurrentBuffer.Contents) {
edge2 = len(window.CurrentBuffer.Contents) - 1
}
str = str[:edge1] + str[edge2+1:]
window.CurrentBuffer.Contents = str
window.SetCursorPos(edge1)
window.CurrentBuffer.Selection = nil
}
index := window.CurrentBuffer.CursorPos
if index == len(str) {
@ -403,6 +432,20 @@ func (window *Window) input(ev *tcell.EventKey) {
} else if ev.Key() == tcell.KeyRune {
if window.CursorMode == CursorModeBuffer {
str := window.CurrentBuffer.Contents
// Remove selected text
if window.CurrentBuffer.Selection != nil {
edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
if edge2 == len(window.CurrentBuffer.Contents) {
edge2 = len(window.CurrentBuffer.Contents) - 1
}
str = str[:edge1] + str[edge2+1:]
window.CurrentBuffer.Contents = str
window.SetCursorPos(edge1)
window.CurrentBuffer.Selection = nil
}
index := window.CurrentBuffer.CursorPos
if index == len(str) {