mirror of https://github.com/jroimartin/gocui.git
50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
// Copyright 2014 The gocui Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package gocui
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// editWrite writes a rune at the cursor position.
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func (v *View) editWrite(ch rune) error {
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v.writeRune(v.cx, v.cy, ch)
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if err := v.SetCursor(v.cx+1, v.cy); err != nil {
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if err := v.SetOrigin(v.ox+1, v.oy); err != nil {
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return err
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}
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}
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return nil
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}
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// editDelete deletes a rune at the cursor position. back determines
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// the direction.
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func (v *View) editDelete(back bool) error {
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if back {
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v.deleteRune(v.cx-1, v.cy)
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if err := v.SetCursor(v.cx-1, v.cy); err != nil && v.ox > 0 {
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if err := v.SetOrigin(v.ox-1, v.oy); err != nil {
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return err
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}
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}
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} else {
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v.deleteRune(v.cx, v.cy)
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}
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return nil
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}
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// editLine inserts a new line under the cursor.
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func (v *View) editLine() error {
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v.addLine(v.cy + 1)
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if err := v.SetCursor(v.cx, v.cy+1); err != nil {
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if err := v.SetOrigin(v.ox, v.oy+1); err != nil {
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return err
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}
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}
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if err := v.SetCursor(0, v.cy); err != nil {
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return err
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}
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if err := v.SetOrigin(0, v.oy); err != nil {
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return err
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}
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return nil
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}
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