49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
package main
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import (
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"github.com/fogleman/gg"
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)
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func main() {
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dc := drawBubble("Hello World!", 16)
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dc.SavePNG("hello.png")
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}
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// drawBubble draws text with a bubble around it.
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// content must be greater than 0.
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func drawBubble(s string, pt float64) *gg.Context {
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inch := 72.272 //1 inch is 72.272 (font) points. or 72 points. im getting conflicting information here.
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px := inch / 96 //1 px is 1/96th of an inch. According to some random website.
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padX, padY := 0.0, 0.0 // left in case I change my mind on absolute padding vs relative padding
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to := 25 // round up to the nearest 25th.
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size := float64(len(s)) * (px * pt) /* this was incorrect but it does make for a nice amount of padding per text.
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It gets wider as you add more text. This is because the program should be cursed. */
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bx, by := size+padX, (pt*2)+padY // box x and box y
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x, y := roundTo(bx, to), roundTo(by, to) //dc x and dc y
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dc := gg.NewContext(int(x), int(y))
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err := dc.LoadFontFace("./Hack-Regular.ttf", pt)
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if err != nil {
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print("lol")
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}
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dc.DrawRoundedRectangle((x-bx)/2, (y-by)/2, bx, by, 10)
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dc.SetRGB(1, 1, 1)
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dc.Fill()
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dc.DrawRoundedRectangle((x-bx)/2, (y-by)/2, bx, by, 10)
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dc.SetRGB(256, 256, 256)
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dc.SetLineWidth(3)
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dc.Stroke()
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dc.DrawStringAnchored(s, x/2, y/2, 0.5, 0.5)
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return dc
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}
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// roundTo rounds base up to the next multiple of To.
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func roundTo(base float64, To int) float64 {
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i := int(base)
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for i%To != 0 {
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i++
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}
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return float64(i)
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}
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