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text_cell.go
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text_cell.go
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// Copyright (c) 2022-2023 The Go-Curses Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use file except in compliance with the License.
// You may obtain a copy of the license at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package memphis
import (
"fmt"
"github.com/go-curses/cdk/lib/paint"
)
type TextCell interface {
Dirty() bool
Set(r rune)
SetByte(b []byte)
SetStyle(style paint.Style)
Equals(mc rune, style paint.Style, width int) bool
Width() int
Count() int
Value() rune
StringValue() string
String() string
Style() paint.Style
IsNil() bool
IsSpace() bool
IsNewline() bool
// sync.Locker
}
type CTextCell struct {
char *CTextChar
style paint.Style
dirty bool
// sync.RWMutex
}
func NewTextCellFromRune(char rune, style paint.Style) *CTextCell {
return NewTextCell(NewTextChar([]byte(string(char))), style)
}
func NewTextCell(char *CTextChar, style paint.Style) *CTextCell {
return &CTextCell{
char: char,
style: style,
dirty: true,
}
}
func (t *CTextCell) Equals(mc rune, style paint.Style, width int) bool {
// t.RLock()
// defer t.RUnlock()
if !t.style.Equals(style) {
return false
}
if t.char.Width() != width {
return false
}
if t.char.Value() != mc {
return false
}
return true
}
func (t *CTextCell) Dirty() bool {
// t.RLock()
// defer t.RUnlock()
return t.dirty
}
func (t *CTextCell) Set(r rune) {
// t.Lock()
// defer t.Unlock()
t.char.Set(r)
t.dirty = true
}
func (t *CTextCell) SetByte(b []byte) {
// t.Lock()
// defer t.Unlock()
t.char.SetByte(b)
t.dirty = true
}
func (t *CTextCell) SetStyle(style paint.Style) {
// t.Lock()
// defer t.Unlock()
t.style = style
t.dirty = true
}
func (t *CTextCell) Width() int {
// t.RLock()
// defer t.RUnlock()
return t.char.Width()
}
func (t *CTextCell) Count() int {
// t.RLock()
// defer t.RUnlock()
return t.char.Count()
}
func (t *CTextCell) Value() rune {
// t.RLock()
// defer t.RUnlock()
return t.char.Value()
}
func (t *CTextCell) StringValue() string {
// t.RLock()
// defer t.RUnlock()
return t.char.String()
}
func (t *CTextCell) String() string {
// t.RLock()
// defer t.RUnlock()
return fmt.Sprintf(
"{Char=%s,Style=%s}",
t.char.String(),
t.style.String(),
)
}
func (t *CTextCell) Style() paint.Style {
// t.RLock()
// defer t.RUnlock()
return t.style
}
func (t *CTextCell) IsNil() bool {
// t.RLock()
// defer t.RUnlock()
return t.char.Value() == rune(0)
}
func (t *CTextCell) IsSpace() bool {
// t.RLock()
// defer t.RUnlock()
return t.char.IsSpace()
}
func (t *CTextCell) IsNewline() bool {
// t.RLock()
// defer t.RUnlock()
return t.char.IsNewline()
}