clock/clock.go

84 lines
1.7 KiB
Go

package clock
import (
"image"
"image/color"
"image/png"
"strconv"
"io"
"time"
"git.niplace.ru/XoxJlopeZ_1488/clock/imageutils"
"git.niplace.ru/XoxJlopeZ_1488/clock/letter"
)
func Check(err error) {
if err != nil {
panic(err)
}
}
var img1, img2 = letter.Nums[6].Render(), letter.Nums[9].Render()
func DownRightBlank(img image.Image) image.Image {
clr := color.White
img = letter.Blank(img, clr, imageutils.Down)
return letter.Blank(img, clr, imageutils.Right)
}
func LeftUpBlank(img image.Image) image.Image {
clr := color.White
img = letter.Blank(img, clr, imageutils.Left)
return letter.Blank(img, clr, imageutils.Up)
}
func RenderNum(n int) image.Image {
var img image.Image = image.NewRGBA(image.Rect(0,0,0,0))
s := strconv.Itoa(n)
for i := range s {
n, err := strconv.Atoi(string(s[i]))
if err != nil {
panic(err)
}
println(n)
num := letter.Nums[n].Render()
num = DownRightBlank(num)
img = imageutils.Concat(img, num, imageutils.Right)
}
img = LeftUpBlank(img)
return img
}
func RenderTime(t time.Time) image.Image {
hour := RenderNum(t.Hour())
if t.Hour() < 10 {
hour = imageutils.Concat(
DownRightBlank(letter.Empty), hour, imageutils.Right)
}
minute := RenderNum(t.Minute())
if t.Minute() < 10 {
minute = imageutils.Concat(
DownRightBlank(letter.Empty), minute, imageutils.Right)
}
img := imageutils.Concat(hour, minute, imageutils.Down)
return img
}
func Margin(img image.Image, length int) image.Image {
for i := 0; i < length; i++ {
img = LeftUpBlank(DownRightBlank(img))
}
return img
}
func Time(w io.Writer) {
t := time.Now()
img := RenderTime(t)
img = Margin(img, 3)
img = imageutils.Scale(img, 1<<6)
Check(png.Encode(w, img))
}