package fonts import ( "fmt" "github.com/golang/freetype/truetype" "github.com/llgcode/draw2d" ) type Cache map[string]*truetype.Font func (fc Cache) Store(fd draw2d.FontData, font *truetype.Font) { fc[fd.Name] = font } func (fc Cache) Load(fd draw2d.FontData) (*truetype.Font, error) { font, stored := fc[fd.Name] if !stored { return nil, fmt.Errorf("font %s is not stored in font cache", fd.Name) } return font, nil }