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/shmem" "git.kirsle.net/go/render" "git.kirsle.net/go/ui" ) // Layers shows the layers when editing a doodad file. type Layers struct { Supervisor *ui.Supervisor Engine render.Engine // Pointer to the currently edited level. EditDoodad *doodads.Doodad ActiveLayer int // pointer to selected layer activeLayer string // cached string for radio button // Callback functions. OnChange func(*doodads.Doodad) // Doodad data was modified, reload the Canvas etc. OnAddLayer func() // "Add Layer" button was clicked OnCancel func() // Close button was clicked. // Editor should change the active layer OnChangeLayer func(index int) } // NewLayerWindow initializes the window. func NewLayerWindow(config Layers) *ui.Window { // Default options. var ( title = "Layers" rows = []*ui.Frame{} // size of the popup window width = 320 height = 300 // Column sizes of the palette table. col1 = 40 // Index col3 = 120 // Name col4 = 60 // Edit button // col5 = 150 // Delete // pagination values page = 1 perPage = 5 ) config.activeLayer = fmt.Sprintf("%d", config.ActiveLayer) 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, }) // Draw the header row. headers := []struct { Name string Size int }{ {"Index", col1}, {"Name", col3}, {"Edit", col4}, } header := ui.NewFrame("Header") for _, col := range headers { labelFrame := ui.NewFrame(col.Name) labelFrame.Configure(ui.Config{ Width: col.Size, Height: 24, }) label := ui.NewLabel(ui.Label{ Text: col.Name, Font: balance.MenuFontBold, }) labelFrame.Pack(label, ui.Pack{ Side: ui.N, }) header.Pack(labelFrame, ui.Pack{ Side: ui.W, Padding: 2, }) } header.Compute(config.Engine) frame.Pack(header, ui.Pack{ Side: ui.N, }) // Draw the rows for each Layer in the given doodad. if doodad := config.EditDoodad; doodad != nil { for i, _ := range doodad.Layers { i := i // rescope var idStr = fmt.Sprintf("%d", i) row := ui.NewFrame("Layer " + idStr) rows = append(rows, row) // Off the end of the first page? if i >= perPage { row.Hide() } // ID label. idLabel := ui.NewLabel(ui.Label{ Text: idStr + ".", Font: balance.MenuFont, }) idLabel.Configure(ui.Config{ Width: col1, Height: 24, }) // Name button (click to rename the swatch) btnName := ui.NewButton("Name", ui.NewLabel(ui.Label{ TextVariable: &doodad.Layers[i].Name, })) btnName.Configure(ui.Config{ Width: col3, Height: 24, }) btnName.Handle(ui.Click, func(ed ui.EventData) error { shmem.Prompt("New layer name ["+doodad.Layers[i].Name+"]: ", func(answer string) { if answer != "" { doodad.Layers[i].Name = answer if config.OnChange != nil { config.OnChange(config.EditDoodad) } } }) return nil }) config.Supervisor.Add(btnName) // Edit button (open layer for editing) // btnEdit := ui.NewButton("Edit", ui.NewLabel(ui.Label{ // Text: "Edit", // })) btnEdit := ui.NewRadioButton("Edit", &config.activeLayer, idStr, ui.NewLabel(ui.Label{ Text: "Edit", })) btnEdit.Configure(ui.Config{ Width: col4, Height: 24, }) btnEdit.Handle(ui.Click, func(ed ui.EventData) error { if config.OnChangeLayer != nil { config.OnChangeLayer(i) } return nil }) config.Supervisor.Add(btnEdit) // Pack all the widgets. row.Pack(idLabel, ui.Pack{ Side: ui.W, PadX: 2, }) row.Pack(btnName, ui.Pack{ Side: ui.W, PadX: 2, }) row.Pack(btnEdit, ui.Pack{ Side: ui.W, PadX: 2, }) row.Compute(config.Engine) frame.Pack(row, ui.Pack{ Side: ui.N, PadY: 2, }) } } { /****************** * 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: "Layers Window Pager", Page: page, Pages: int(math.Ceil( float64(len(rows)) / float64(perPage), )), PerPage: perPage, MaxPageButtons: 10, Font: balance.MenuFont, OnChange: func(newPage, perPage int) { page = newPage // Re-evaluate which rows are shown/hidden for this page. var ( minRow = (page - 1) * perPage visible = 0 ) for i, row := range rows { if visible >= perPage { 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, }) btnFrame := ui.NewFrame("Window Buttons") var buttons = []struct { Label string F func(ui.EventData) error }{ {"Add Layer", func(ed ui.EventData) error { if config.OnAddLayer != nil { config.OnAddLayer() } if config.OnChange != nil { config.OnChange(config.EditDoodad) } return nil }}, {"Close", func(ed ui.EventData) error { if config.OnCancel != nil { 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) btn.Compute(config.Engine) config.Supervisor.Add(btn) btnFrame.Pack(btn, ui.Pack{ Side: ui.W, PadX: 4, }) } bottomFrame.Place(btnFrame, ui.Place{ Top: 60, Center: true, }) } window.Hide() return window }