objects/icon.go

package objects

import "image"
import "git.tebibyte.media/tomo/tomo"
import "git.tebibyte.media/tomo/tomo/data"
import "git.tebibyte.media/tomo/tomo/theme"
import "git.tebibyte.media/tomo/tomo/canvas"

// Icon displays a single icon.
type Icon struct {
	tomo.Box
}

// NewIcon creates a new icon from an icon ID.
func NewIcon (id theme.Icon, size theme.IconSize) *Icon {
	this := &Icon {
		Box: tomo.NewBox(),
	}
	theme.Apply(this, theme.R("objects", "Icon", size.String()))
	this.SetTexture(id.Texture(size))
	return this
}

// NewMimeIcon creates a new icon from a MIME type.
func NewMimeIcon (mime data.Mime, size theme.IconSize) *Icon {
	this := &Icon {
		Box: tomo.NewBox(),
	}
	theme.Apply(this, theme.R("objects", "Icon", size.String()))
	this.SetTexture(theme.MimeIcon(mime, size))
	return this
}

// NewApplicationIcon creates a new icon from an application description.
func NewApplicationIcon (id theme.ApplicationIcon, size theme.IconSize) *Icon {
	this := &Icon {
		Box: tomo.NewBox(),
	}
	theme.Apply(this, theme.R("objects", "Icon", size.String()))
	this.SetTexture(id.Texture(size))
	return this
}

func (this *Icon) SetTexture (texture canvas.Texture) {
	this.Box.SetTexture(texture)
	if texture == nil {
		this.SetMinimumSize(image.Pt(0, 0))
	} else {
		bounds := texture.Bounds()
		this.SetMinimumSize(bounds.Max.Sub(bounds.Min))
	}
}