command

package

v0.0.0-...-d6d939f Latest Latest Go to latest Published: Apr 11, 2024 License: CC0-1.0 Imports: 4 Imported by: 0

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type AppMain struct {
	// contains filtered or unexported fields
}

func NewAppMain() *AppMain

type Command interface {
	Execute()
}

type HistoryCommand struct {
	// contains filtered or unexported fields
}

Holder of the past commands

func NewHistoryCommand() *HistoryCommand

func (h *HistoryCommand) Add(cmd Command)

func (h *HistoryCommand) Clear()

Delete all past commands.

func (h *HistoryCommand) Execute()

Execute all past commands

func (h *HistoryCommand) Undo()

Delete the last command

type PaintingCanvas struct {
	// contains filtered or unexported fields
}

func NewPaintingCanvas(window *walk.MainWindow) *PaintingCanvas

func (p *PaintingCanvas) Clear()

func (p *PaintingCanvas) Paint(x int, y int)

type PaintingCommand struct {
	// contains filtered or unexported fields
}

Command to paint a single point

func NewPaintingCommand(paintingTarget PaintingTarget, paintingPosX int, paintingPosY int) *PaintingCommand

func (p *PaintingCommand) Execute()

type PaintingTarget interface {
	Paint(x int, y int)

	Clear()
}