package testing import "image" import "image/color" import "git.tebibyte.media/sashakoshka/tomo" 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) element.core.SetMinimumSize(32, 32) element.color = artist.NewUniform(color.Black) return } func (element *Mouse) Resize (width, height int) { element.core.AllocateCanvas(width, height) bounds := element.Bounds() pattern, _ := theme.AccentPattern(theme.PatternState { }) artist.FillRectangle(element.core, pattern, bounds) artist.StrokeRectangle ( element.core, artist.NewUniform(color.Black), 1, bounds) artist.Line ( element.core, artist.NewUniform(color.White), 1, image.Pt(1, 1), image.Pt(bounds.Dx() - 2, bounds.Dy() - 2)) artist.Line ( element.core, artist.NewUniform(color.White), 1, image.Pt(1, bounds.Dy() - 2), image.Pt(bounds.Dx() - 2, 1)) } func (element *Mouse) HandleMouseDown (x, y int, button tomo.Button) { element.drawing = true element.lastMousePos = image.Pt(x, y) } func (element *Mouse) HandleMouseUp (x, y int, button tomo.Button) { element.drawing = false mousePos := image.Pt(x, y) element.core.DamageRegion (artist.Line ( element.core, 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.core, element.color, 1, element.lastMousePos, mousePos)) element.lastMousePos = mousePos } func (element *Mouse) HandleMouseScroll (x, y int, deltaX, deltaY float64) { }