Naman Sood
1981a291aa
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/ Deploy blog to deuterium (push) Successful in 1m9s
Signed-off-by: Naman Sood <mail@nsood.in>
77 lines
2 KiB
Go
77 lines
2 KiB
Go
package common
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import (
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"io"
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"time"
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"github.com/fogleman/gg"
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)
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const (
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BlogTitle = "Prose"
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BlogURL = "https://prose.nsood.in"
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BlogSummary = "Where I infodump in Markdown and nobody can stop me."
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)
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func RSSDatetime(timestamp int64) string {
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return time.Unix(timestamp, 0).Format("Mon, 02 Jan 2006 15:04:05 MST")
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}
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func CreateImage(title, summary, url string, out io.Writer) error {
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imgWidth, imgHeight, imgPaddingX, imgPaddingY := 1200, 600, 50, 100
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accentHeight, spacerHeight := 12.5, 20.0
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titleSize, summarySize, urlSize := 63.0, 42.0, 27.0
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lineHeight := 1.05
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textWidth := float64(imgWidth - 2*imgPaddingX)
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draw := gg.NewContext(imgWidth, imgHeight)
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titleFont, err := gg.LoadFontFace("static/fonts/Nunito-Bold.ttf", titleSize)
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if err != nil {
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return err
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}
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summaryFont, err := gg.LoadFontFace("static/fonts/Nunito-LightItalic.ttf", summarySize)
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if err != nil {
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return err
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}
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urlFont, err := gg.LoadFontFace("static/fonts/JetBrainsMono-ExtraLight.ttf", urlSize)
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if err != nil {
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return err
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}
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draw.SetFontFace(titleFont)
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wrappedTitle := draw.WordWrap(title, textWidth)
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draw.SetFontFace(summaryFont)
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wrappedSummary := draw.WordWrap(summary, textWidth)
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draw.SetHexColor("#fff")
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draw.DrawRectangle(0, 0, float64(imgWidth), float64(imgHeight))
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draw.Fill()
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draw.SetHexColor("#3498db")
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draw.DrawRectangle(0, float64(imgHeight)-accentHeight, float64(imgWidth), accentHeight)
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draw.Fill()
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offset := float64(imgPaddingY)
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draw.SetFontFace(titleFont)
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draw.SetHexColor("#333")
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for _, line := range wrappedTitle {
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draw.DrawString(line, float64(imgPaddingX), offset)
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offset += lineHeight * titleSize
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}
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offset += spacerHeight
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draw.SetFontFace(summaryFont)
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draw.SetHexColor("#999")
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for _, line := range wrappedSummary {
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draw.DrawString(line, float64(imgPaddingX), offset)
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offset += lineHeight * summarySize
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}
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draw.SetHexColor("#333")
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draw.SetFontFace(urlFont)
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urlY := float64(imgHeight - imgPaddingY)
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draw.DrawStringWrapped(url, float64(imgPaddingX), urlY, 0, 0, textWidth, lineHeight, gg.AlignRight)
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return draw.EncodePNG(out)
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}
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