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30 lines
558 B
Go
30 lines
558 B
Go
package chart
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import (
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"sync"
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"github.com/golang/freetype/truetype"
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"github.com/wcharczuk/go-chart/v2/roboto"
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)
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var (
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_defaultFontLock sync.Mutex
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_defaultFont *truetype.Font
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)
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// GetDefaultFont returns the default font (Roboto-Medium).
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func GetDefaultFont() (*truetype.Font, error) {
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if _defaultFont == nil {
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_defaultFontLock.Lock()
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defer _defaultFontLock.Unlock()
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if _defaultFont == nil {
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font, err := truetype.Parse(roboto.Roboto)
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if err != nil {
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return nil, err
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}
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_defaultFont = font
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}
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}
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return _defaultFont, nil
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}
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