/
gdi.go
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/
gdi.go
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//go:build !canvas
// +build !canvas
package gdi
import (
"image/color"
"golang.org/x/image/font"
"golang.org/x/image/math/fixed"
"github.com/goplus/spx/internal/gdi/text"
"github.com/hajimehoshi/ebiten/v2"
)
type Font = font.Face
// -------------------------------------------------------------------------------------
// TextRender represents a text rendering engine.
//
type TextRender struct {
*text.Render
}
// NewTextRender creates a text rendering engine.
//
func NewTextRender(face Font, width int, dy int) TextRender {
r := text.NewRender(face, fixed.I(width), fixed.I(dy))
return TextRender{r}
}
// Size returns width and height of rendered text.
//
func (p TextRender) Size() (int, int) {
w, h := p.Render.Size()
return w.Ceil(), h.Ceil()
}
// Draw draws rendered text.
//
func (p TextRender) Draw(target *ebiten.Image, x, y int, clr color.Color, mode int) {
p.Render.Draw(target, fixed.I(x), fixed.I(y), clr, mode)
}
// DrawText draws input text.
//
func DrawText(target *ebiten.Image, f Font, x, y int, text string, clr color.Color, mode int) {
render := NewTextRender(f, 0x80000, 0)
render.AddText(text)
render.Draw(target, x, y, clr, mode)
}
// DrawLines draws multiline text.
//
func DrawLines(target *ebiten.Image, f Font, x, y int, width int, text string, clr color.Color, mode int) {
render := NewTextRender(f, width, 0)
render.AddText(text)
render.Draw(target, x, y, clr, mode)
}
// -------------------------------------------------------------------------------------