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tomo-old/elements/testing/mouse.go
2023-04-15 18:30:22 -04:00

86 lines
2.3 KiB
Go

package testing
import "image"
import "git.tebibyte.media/sashakoshka/tomo"
import "git.tebibyte.media/sashakoshka/tomo/input"
import "git.tebibyte.media/sashakoshka/tomo/artist"
import "git.tebibyte.media/sashakoshka/tomo/canvas"
import "git.tebibyte.media/sashakoshka/tomo/artist/shapes"
import "git.tebibyte.media/sashakoshka/tomo/default/theme"
import "git.tebibyte.media/sashakoshka/tomo/default/config"
// Mouse is an element capable of testing mouse input. When the mouse is clicked
// and dragged on it, it draws a trail.
type Mouse struct {
entity tomo.Entity
pressed bool
lastMousePos image.Point
config config.Wrapped
theme theme.Wrapped
}
// NewMouse creates a new mouse test element.
func NewMouse () (element *Mouse) {
element = &Mouse { }
element.theme.Case = tomo.C("tomo", "mouse")
element.entity = tomo.NewEntity(element)
element.entity.SetMinimumSize(32, 32)
return
}
func (element *Mouse) Entity () tomo.Entity {
return element.entity
}
func (element *Mouse) Draw (destination canvas.Canvas) {
bounds := element.entity.Bounds()
accent := element.theme.Color (
tomo.ColorAccent,
tomo.State { })
shapes.FillColorRectangle(destination, accent, bounds)
shapes.StrokeColorRectangle (
destination,
artist.Hex(0x000000FF),
bounds, 1)
shapes.ColorLine (
destination, artist.Hex(0xFFFFFFFF), 1,
bounds.Min.Add(image.Pt(1, 1)),
bounds.Min.Add(image.Pt(bounds.Dx() - 2, bounds.Dy() - 2)))
shapes.ColorLine (
destination, artist.Hex(0xFFFFFFFF), 1,
bounds.Min.Add(image.Pt(1, bounds.Dy() - 2)),
bounds.Min.Add(image.Pt(bounds.Dx() - 2, 1)))
if element.pressed {
shapes.ColorLine (
destination, artist.Hex(0x000000FF), 1,
bounds.Min, element.lastMousePos)
}
}
// SetTheme sets the element's theme.
func (element *Mouse) SetTheme (new tomo.Theme) {
element.theme.Theme = new
element.entity.Invalidate()
}
// SetConfig sets the element's configuration.
func (element *Mouse) SetConfig (new tomo.Config) {
element.config.Config = new
element.entity.Invalidate()
}
func (element *Mouse) HandleMouseDown (x, y int, button input.Button) {
element.pressed = true
}
func (element *Mouse) HandleMouseUp (x, y int, button input.Button) {
element.pressed = false
}
func (element *Mouse) HandleMotion (x, y int) {
if !element.pressed { return }
element.lastMousePos = image.Pt(x, y)
element.entity.Invalidate()
}