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https://github.com/gdamore/tcell.git
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761abf6821
This adds a new method, SetCursorStyle() to the screen API. It also automatically restores the cursor when disengaging to the default cursor. Modern terminals (and Windows console) support this.
92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
// +build ignore
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// Copyright 2021 The TCell Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use file except in compliance with the License.
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// You may obtain a copy of the license at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// beep makes a beep every second until you press ESC
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package main
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import (
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"fmt"
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"github.com/gdamore/tcell/v2"
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"os"
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)
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func main() {
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tcell.SetEncodingFallback(tcell.EncodingFallbackASCII)
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s, e := tcell.NewScreen()
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if e != nil {
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fmt.Fprintf(os.Stderr, "%v\n", e)
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os.Exit(1)
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}
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if e = s.Init(); e != nil {
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fmt.Fprintf(os.Stderr, "%v\n", e)
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os.Exit(1)
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}
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s.SetStyle(tcell.StyleDefault)
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s.Clear()
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s.SetCell(2, 2, tcell.StyleDefault, '0')
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s.SetCursorStyle(tcell.CursorStyleDefault)
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s.ShowCursor(3, 2)
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quit := make(chan struct{})
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style := tcell.StyleDefault
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go func() {
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for {
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ev := s.PollEvent()
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switch ev := ev.(type) {
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case *tcell.EventKey:
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switch ev.Key() {
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case tcell.KeyRune:
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switch ev.Rune() {
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case '0':
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s.SetContent(2, 2, '0', nil, style)
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s.SetCursorStyle(tcell.CursorStyleDefault)
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case '1':
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s.SetContent(2, 2, '1', nil, style)
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s.SetCursorStyle(tcell.CursorStyleBlinkingBlock)
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case '2':
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s.SetCell(2, 2, tcell.StyleDefault, '2')
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s.SetCursorStyle(tcell.CursorStyleSteadyBlock)
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case '3':
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s.SetCell(2, 2, tcell.StyleDefault, '3')
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s.SetCursorStyle(tcell.CursorStyleBlinkingUnderline)
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case '4':
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s.SetCell(2, 2, tcell.StyleDefault, '4')
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s.SetCursorStyle(tcell.CursorStyleSteadyUnderline)
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case '5':
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s.SetCell(2, 2, tcell.StyleDefault, '5')
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s.SetCursorStyle(tcell.CursorStyleBlinkingBar)
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case '6':
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s.SetCell(2, 2, tcell.StyleDefault, '6')
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s.SetCursorStyle(tcell.CursorStyleSteadyBar)
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}
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s.Show()
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case tcell.KeyEscape, tcell.KeyEnter, tcell.KeyCtrlC:
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close(quit)
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return
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case tcell.KeyCtrlL:
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s.Sync()
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}
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case *tcell.EventResize:
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s.Sync()
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}
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}
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}()
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<-quit
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s.Fini()
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}
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