zeni/go-chart
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tweaks.

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This commit is contained in:
Will Charczuk 2016-07-10 23:45:25 -07:00
parent 8f0751f743
commit 7cb416041d
1 changed files with 4 additions and 1 deletions
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5
drawing/raster_graphic_context.go
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@ -159,6 +159,9 @@ func (rgc *RasterGraphicContext) GetStringBounds(s string) (left, top, right, bo
} }
rgc.recalc() rgc.recalc()
left = math.MaxFloat64
top = math.MaxFloat64
cursor := 0.0 cursor := 0.0
prev, hasPrev := truetype.Index(0), false prev, hasPrev := truetype.Index(0), false
for _, rc := range s { for _, rc := range s {
@ -191,7 +194,7 @@ func (rgc *RasterGraphicContext) GetStringBounds(s string) (left, top, right, bo
// recalc recalculates scale and bounds values from the font size, screen // recalc recalculates scale and bounds values from the font size, screen
// resolution and font metrics, and invalidates the glyph cache. // resolution and font metrics, and invalidates the glyph cache.
func (rgc *RasterGraphicContext) recalc() { func (rgc *RasterGraphicContext) recalc() {
rgc.current.Scale = rgc.current.FontSizePoints * float64(rgc.DPI) * 64.0 / 72.0 rgc.current.Scale = rgc.current.FontSizePoints * float64(rgc.DPI)
} }
// SetFont sets the font used to draw text. // SetFont sets the font used to draw text.