package testing import "image" import "image/color" import "git.tebibyte.media/sashakoshka/tomo/input" import "git.tebibyte.media/sashakoshka/tomo/theme" import "git.tebibyte.media/sashakoshka/tomo/artist" import "git.tebibyte.media/sashakoshka/tomo/elements/core" // 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 { *core.Core core core.CoreControl drawing bool color artist.Pattern lastMousePos image.Point } // NewMouse creates a new mouse test element. func NewMouse () (element *Mouse) { element = &Mouse { } element.Core, element.core = core.NewCore ( element.draw, element.redo, element.redo, theme.C("testing", "mouse")) element.core.SetMinimumSize(32, 32) element.color = artist.NewUniform(color.Black) return } func (element *Mouse) redo () { if !element.core.HasImage() { return } element.draw() element.core.DamageAll() } func (element *Mouse) draw () { bounds := element.Bounds() pattern := element.core.Pattern(theme.PatternAccent, theme.PatternState { }) artist.FillRectangle(element, pattern, bounds) artist.StrokeRectangle ( element, artist.NewUniform(color.Black), 1, bounds) artist.Line ( element, artist.NewUniform(color.White), 1, bounds.Min.Add(image.Pt(1, 1)), bounds.Min.Add(image.Pt(bounds.Dx() - 2, bounds.Dy() - 2))) artist.Line ( element, artist.NewUniform(color.White), 1, bounds.Min.Add(image.Pt(1, bounds.Dy() - 2)), bounds.Min.Add(image.Pt(bounds.Dx() - 2, 1))) } func (element *Mouse) HandleMouseDown (x, y int, button input.Button) { element.drawing = true element.lastMousePos = image.Pt(x, y) } func (element *Mouse) HandleMouseUp (x, y int, button input.Button) { element.drawing = false mousePos := image.Pt(x, y) element.core.DamageRegion (artist.Line ( element, element.color, 1, element.lastMousePos, mousePos)) element.lastMousePos = mousePos } func (element *Mouse) HandleMouseMove (x, y int) { if !element.drawing { return } mousePos := image.Pt(x, y) element.core.DamageRegion (artist.Line ( element, element.color, 1, element.lastMousePos, mousePos)) element.lastMousePos = mousePos } func (element *Mouse) HandleMouseScroll (x, y int, deltaX, deltaY float64) { }