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tomo-old/elements/basic/test.go

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2023-01-08 23:03:19 -07:00
package basic
import "image"
import "image/color"
import "git.tebibyte.media/sashakoshka/tomo"
import "git.tebibyte.media/sashakoshka/tomo/artist"
// Test is a simple element that can be used as a placeholder.
type Test struct {
core Core
}
// NewTest creates a new test element.
func NewTest () (element *Test) {
element = &Test { }
element.core = NewCore(element)
element.core.SetMinimumSize(32, 32)
return
}
func (element *Test) Handle (event tomo.Event) {
switch event.(type) {
case tomo.EventResize:
resizeEvent := event.(tomo.EventResize)
element.core.AllocateCanvas (
resizeEvent.Width,
resizeEvent.Height)
for y := 0; y < resizeEvent.Height; y ++ {
for x := 0; x < resizeEvent.Width; x ++ {
pixel := color.RGBA {
R: 0x40, G: 0x80, B: 0x90, A: 0xFF,
}
element.core.SetRGBA (x, y, pixel)
}}
artist.Line (
element.core, artist.NewUniform(color.White), 1,
image.Pt(0, 0),
image.Pt(resizeEvent.Width, resizeEvent.Height))
artist.Line (
element.core, artist.NewUniform(color.White), 1,
image.Pt(0, resizeEvent.Height),
image.Pt(resizeEvent.Width, 0))
default:
}
return
}
func (element *Test) ColorModel () (model color.Model) {
return color.RGBAModel
}
func (element *Test) At (x, y int) (pixel color.Color) {
pixel = element.core.At(x, y)
return
}
func (element *Test) RGBAAt (x, y int) (pixel color.RGBA) {
pixel = element.core.RGBAAt(x, y)
return
}
func (element *Test) Bounds () (bounds image.Rectangle) {
bounds = element.core.Bounds()
return
}
func (element *Test) SetDrawCallback (draw func (region tomo.Image)) {
element.core.SetDrawCallback(draw)
}
func (element *Test) SetMinimumSizeChangeCallback (
notify func (width, height int),
) {
element.core.SetMinimumSizeChangeCallback(notify)
}
func (element *Test) Selectable () (selectable bool) {
return
}
func (element *Test) MinimumWidth () (minimum int) {
minimum = element.core.MinimumWidth()
return
}
func (element *Test) MinimumHeight () (minimum int) {
minimum = element.core.MinimumHeight()
return
}