writefreely/text-pic
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Vertically center main text

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Matt Baer 2021-01-17 11:16:38 -05:00
parent 52727f352a
commit e03ebcb073
1 changed files with 13 additions and 3 deletions
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16
main.go
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@ -57,8 +57,10 @@ func run() error {
// Content parameters // Content parameters
contentFontSize := 48.0 contentFontSize := 48.0
lineSpacing := 1.8 lineSpacing := 1.8
contentBottomMargin := 100.0
contentRightMargin := 50.0 contentRightMargin := 50.0
contentTopMargin := 50.0 contentTopMargin := 50.0
contentWidth := wf - contentRightMargin - contentRightMargin
// Create bold instance name // Create bold instance name
err := loadFont(dc, true, footerFontSize) err := loadFont(dc, true, footerFontSize)
@ -101,10 +103,18 @@ func run() error {
return err return err
} }
s := "The rest of the travelers in our flying bus napped or stared listlessly at a shiny slab in their lap and the staring yellow orb morphed into a full circle out in the blue. As we banked to the right — a nod to its awakening — it seemed to rest in acknowledgement, hanging for a moment on the invisible horizon." s := "The rest of the travelers in our flying bus napped or stared listlessly at a shiny slab in their lap and the staring yellow orb morphed into a full circle out in the blue. As we banked to the right — a nod to its awakening — it seemed to rest in acknowledgement, hanging for a moment on the invisible horizon."
lines := dc.WordWrap(s, contentWidth)
linesStr := ""
for i, str := range lines {
linesStr += str
if i != len(lines)-1 {
linesStr += "\n"
}
}
_, contentTextHeight := dc.MeasureMultilineString(linesStr, lineSpacing)
x = contentRightMargin x = contentRightMargin
y = contentTopMargin y = contentTopMargin - contentBottomMargin + hf/2 - contentTextHeight/2
maxWidth := float64(dc.Width()) - contentRightMargin - contentRightMargin dc.DrawStringWrapped(s, x, y, 0, 0, contentWidth, lineSpacing, gg.AlignLeft)
dc.DrawStringWrapped(s, x, y, 0, 0, maxWidth, lineSpacing, gg.AlignLeft)
err = dc.SavePNG("out.png") err = dc.SavePNG("out.png")
if err != nil { if err != nil {