Fix bound calculation with just emojis (again, super hacky)
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@ -275,10 +275,35 @@ func (gc *GraphicContext) GetStringBounds(s string) (left, top, right, bottom fl
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top, left, bottom, right = 10e6, 10e6, -10e6, -10e6
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top, left, bottom, right = 10e6, 10e6, -10e6, -10e6
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cursor := 0.0
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cursor := 0.0
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prev, hasPrev := truetype.Index(0), false
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prev, hasPrev := truetype.Index(0), false
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// Get sample letter for approximated emoji calculations
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const letter = 'M'
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mindex := f.Index(letter)
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mtop, mleft, mheight, mwidth := 10e6, 10e6, -10e6, -10e6
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if err := gc.glyphBuf.Load(gc.Current.Font, fixed.Int26_6(gc.Current.Scale), mindex, font.HintingNone); err != nil {
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log.Println(err)
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return 0, 0, 0, 0
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}
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e0 := 0
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for _, e1 := range gc.glyphBuf.Ends {
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ps := gc.glyphBuf.Points[e0:e1]
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for _, p := range ps {
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x, y := pointToF64Point(p)
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mtop = math.Min(mtop, y)
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mheight = math.Max(mheight, y)
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mleft = math.Min(mleft, x)
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mwidth = math.Max(mwidth, x)
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}
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}
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mtop *= 1.2
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mwidth *= 1.55
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mheight += math.Abs(mtop-mheight) * 0.2
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// Actually iterate through the string
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for fragment := range gc.Emojis.Iterate(s) {
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for fragment := range gc.Emojis.Iterate(s) {
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if fragment.IsEmoji {
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if fragment.IsEmoji {
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cursor += fUnitsToFloat64(fixed.Int26_6(gc.Current.Scale)) * 1.15
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cursor += mwidth
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left = math.Min(left, cursor)
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top = math.Min(top, mtop)
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bottom = math.Max(bottom, mheight)
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left = math.Min(left, mleft)
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right = math.Max(right, cursor)
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right = math.Max(right, cursor)
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continue
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continue
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}
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}
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