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fontManager.go
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/
fontManager.go
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package audio
import (
"github.com/200sc/klangsynthese/font"
"github.com/oakmound/oak/oakerr"
)
// A FontManager is a map of names to Fonts that has a built in
// default font at name 'def'.
type FontManager map[string]*font.Font
// NewFontManager returns a manager with a single 'def' font
func NewFontManager() *FontManager {
fm := &FontManager{}
(*fm)["def"] = &font.Font{}
return fm
}
// NewFont adds a font to a manger with the given keyed name.
// NewFont can return an error indicating if the name assigned
// was already in use.
func (fm *FontManager) NewFont(name string, f *font.Font) error {
manager := (*fm)
var err error
if _, ok := manager[name]; ok {
err = oakerr.ExistingElement{
InputName: name,
InputType: "font",
Overwritten: true,
}
}
manager[name] = f
return err
}
// Get returns whatever is at name in font
func (fm *FontManager) Get(name string) *font.Font {
manager := (*fm)
font := manager[name]
return font
}