keyboard

sysgo/UI/textarea.go

@@ -0,0 +1,107 @@
+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
+
+	
+}