package windows import ( "fmt" "math" "git.kirsle.net/apps/doodle/pkg/balance" "git.kirsle.net/apps/doodle/pkg/doodads" "git.kirsle.net/apps/doodle/pkg/level" "git.kirsle.net/apps/doodle/pkg/log" "git.kirsle.net/apps/doodle/pkg/uix" "git.kirsle.net/apps/doodle/pkg/usercfg" "git.kirsle.net/go/render" "git.kirsle.net/go/ui" ) // DoodadDropper is the doodad palette pop-up window for Editor Mode. type DoodadDropper struct { Supervisor *ui.Supervisor Engine render.Engine // Editing settings for an existing level? EditLevel *level.Level // Callback functions. OnStartDragActor func(doodad *doodads.Doodad, actor *level.Actor) OnCancel func() } // NewDoodadDropper initializes the window. func NewDoodadDropper(config DoodadDropper) *ui.Window { // Default options. var ( title = "Doodads" buttonSize = balance.DoodadButtonSize columns = balance.DoodadDropperCols rows = balance.DoodadDropperRows // size of the doodad window width = buttonSize * columns height = (buttonSize * rows) + 64 // account for button borders :( // pagination values page = 1 pages int perPage = 20 maxPageButtons = 10 ) window := ui.NewWindow(title) window.SetButtons(ui.CloseButton) window.Configure(ui.Config{ Width: width, Height: height, Background: render.Grey, }) frame := ui.NewFrame("Window Body Frame") window.Pack(frame, ui.Pack{ Side: ui.N, Fill: true, Expand: true, }) /******* * Display the Doodads in rows of buttons *******/ doodadsAvailable, err := doodads.ListDoodads() if err != nil { log.Error("NewDoodadDropper: doodads.ListDoodads: %s", err) } // Load all the doodads, skip hidden ones. var items []*doodads.Doodad for _, filename := range doodadsAvailable { doodad, err := doodads.LoadFile(filename) if err != nil { log.Error(err.Error()) doodad = doodads.New(balance.DoodadSize) } // Skip hidden doodads. if doodad.Hidden && !usercfg.Current.ShowHiddenDoodads { continue } doodad.Filename = filename items = append(items, doodad) } // Compute the number of pages for the pager widget. pages = int( math.Ceil( float64(len(items)) / float64(columns*rows), ), ) // Draw the doodad buttons in rows. var btnRows = []*ui.Frame{} { var ( row *ui.Frame rowCount int // for labeling the ui.Frame for each row // TODO: pre-size btnRows by calculating how many needed ) for i, doodad := range items { doodad := doodad if row == nil || i%columns == 0 { var hidden = rowCount >= rows rowCount++ row = ui.NewFrame(fmt.Sprintf("Doodad Row %d", rowCount)) row.SetBackground(balance.DoodadButtonBackground) btnRows = append(btnRows, row) frame.Pack(row, ui.Pack{ Side: ui.N, // Fill: true, }) // Hide overflowing rows until we scroll to them. if hidden { row.Hide() } } can := uix.NewCanvas(int(buttonSize), true) can.Name = doodad.Title can.SetBackground(balance.DoodadButtonBackground) can.LoadDoodad(doodad) btn := ui.NewButton(doodad.Title, can) btn.Resize(render.NewRect( buttonSize-2, // TODO: without the -2 the button border buttonSize-2, // rests on top of the window border )) row.Pack(btn, ui.Pack{ Side: ui.W, }) // Tooltip hover to show the doodad's name. ui.NewTooltip(btn, ui.Tooltip{ Text: doodad.Title, Edge: ui.Top, }) // Begin the drag event to grab this Doodad. // NOTE: The drag target is the EditorUI.Canvas in // editor_ui.go#SetupCanvas() btn.Handle(ui.MouseDown, func(ed ui.EventData) error { log.Warn("MouseDown on doodad %s (%s)", doodad.Filename, doodad.Title) config.OnStartDragActor(doodad, nil) return nil }) config.Supervisor.Add(btn) // Resize the canvas to fill the button interior. btnSize := btn.Size() can.Resize(render.NewRect( btnSize.W-btn.BoxThickness(2), btnSize.H-btn.BoxThickness(2), )) btn.Compute(config.Engine) } } { /****************** * Confirm/cancel buttons. ******************/ bottomFrame := ui.NewFrame("Button Frame") frame.Pack(bottomFrame, ui.Pack{ Side: ui.S, FillX: true, }) // Pager for the doodads. pager := ui.NewPager(ui.Pager{ Name: "Doodad Dropper Pager", Page: page, Pages: pages, PerPage: perPage, MaxPageButtons: maxPageButtons, Font: balance.MenuFont, OnChange: func(newPage, perPage int) { page = newPage log.Info("Page: %d, %d", page, perPage) // Re-evaluate which rows are shown/hidden for the page we're on. var ( minRow = (page - 1) * rows visible = 0 ) for i, row := range btnRows { if visible >= rows { row.Hide() continue } if i < minRow { row.Hide() } else { row.Show() visible++ } } }, }) pager.Compute(config.Engine) pager.Supervise(config.Supervisor) bottomFrame.Place(pager, ui.Place{ Top: 20, Left: 20, }) var buttons = []struct { Label string F func(ui.EventData) error }{ // OK button is for editing an existing level. {"Close", func(ed ui.EventData) error { config.OnCancel() return nil }}, } for _, t := range buttons { btn := ui.NewButton(t.Label, ui.NewLabel(ui.Label{ Text: t.Label, Font: balance.MenuFont, })) btn.Handle(ui.Click, t.F) config.Supervisor.Add(btn) bottomFrame.Place(btn, ui.Place{ Top: 20, Right: 20, }) } } window.Hide() return window }