LauncherGoDev/sysgo/UI/textarea.go
2018-10-04 22:19:33 +08:00

108 lines
1.9 KiB
Go

package UI
import (
"github.com/veandco/go-sdl2/sdl"
"github.com/veandco/go-sdl2/ttf"
"github.com/cuu/gogame/color"
)
type Textarea struct {
Widget
BackgroundColor *color.Color
CanvasHWND *sdl.Surface
MyWords []string
BlitWords []string
FontObj *ttf.Font
LineNumber int
TextLimit int
TextFull bool
TextIndex int
BlitIndex int
}
func NewTextarea() *Textarea {
p := &Textarea{}
p.TextLimit = 63
p.TextFull = false
p.MyWords = make([]string,0)
p.BlitWords = make([]string,0)
p.BackgroundColor = &color.Color{228,228,228,255}
return p
}
func (self *Textarea) Init() {
self.FontObj = Fonts["veramono24"]
}
func (self *Textarea) SubTextIndex() {
self.TextIndex -= 1
if self.TextIndex < 0 {
self.TextIndex = 0
}
}
func (self *Textarea) AddTextIndex() {
self.TextIndex += 1
if self.TextIndex > len(self.MyWords) {
self.TextIndex = len(self.MyWords)
}
}
func (self *Textarea) ResetMyWords() {
self.MyWords = nil
self.TextIndex = 0
}
func (self *Textarea) RemoveFromLastText() []string {
if len(self.MyWords) > 0 {
self.SubTextIndex()
if self.TextIndex < len(self.MyWords) {
self.MyWords = append(self.MyWords[:self.TextIndex],self.MyWords[(self.TextIndex+1):]...)
}
}
return self.MyWords
}
func (self *Textarea) AppendText( alphabet string) {
self.AppendAndBlitText(alphabet)
}
func (self *Textarea) AppendAndBlitText(alphabet string) {
if self.TextFull == false {
if self.TextIndex <= len(self.MyWords) {
m = append(m[:idx], append([]string{"U"}, m[idx:]...)...)
self.MyWords = append(self.MyWords[:self.TextIndex],
append([]string{alphabet},self.MyWords[self.TextIndex:]...)...)
self.BlitText()
self.AddTextIndex()
}
}else {
fmt.Printf("is Full %s",strings.Join(self.MyWords,""))
}
}
func (self *Textarea) BuildBlitText() {
blit_rows := make([][]string,0)
w := 0
xmargin := 5
endmargin :=15
x := self.PosX + xmargin
linenumber := 0
cursor_row := 0
}