CodingLand/pkg/internal/land/ui/button.go
2024-07-18 21:03:21 +08:00

62 lines
1.3 KiB
Go

package ui
import (
"git.solsynth.dev/highland/codingland/pkg/internal/land"
"github.com/veandco/go-sdl2/sdl"
"github.com/veandco/go-sdl2/ttf"
"log"
)
type ButtonObject struct {
land.BaseUIObject
Label string
Font *ttf.Font
OnClickEvent func(mousePos land.Vector2D)
}
func (p *ButtonObject) Draw(pen *sdl.Renderer) {
var borderWidth int32 = 2
pen.SetDrawColor(255, 255, 255, 255)
pen.FillRect(&sdl.Rect{
X: int32(p.Position.X),
Y: int32(p.Position.Y),
W: int32(p.Size.X),
H: int32(p.Size.Y),
})
pen.SetDrawColor(0, 0, 0, 255)
pen.FillRect(&sdl.Rect{
X: int32(p.Position.X) + borderWidth/2,
Y: int32(p.Position.Y) + borderWidth/2,
W: int32(p.Size.X) - borderWidth,
H: int32(p.Size.Y) - borderWidth,
})
surface, err := p.Font.RenderUTF8Blended(p.Label, sdl.Color{R: 255, G: 255, B: 255, A: 255})
if err != nil {
log.Printf("Failed to render text: %s", err)
return
}
defer surface.Free()
texture, err := pen.CreateTextureFromSurface(surface)
if err != nil {
log.Printf("Failed to create texture: %s", err)
return
}
defer texture.Destroy()
textRect := sdl.Rect{
X: int32(p.BaseUIObject.Position.X),
Y: int32(p.BaseUIObject.Position.Y),
W: surface.W,
H: surface.H,
}
pen.Copy(texture, nil, &textRect)
}
func (p *ButtonObject) OnClick(mousePos land.Vector2D) {
p.OnClickEvent(mousePos)
}