package doodle // XXX REFACTOR XXX // This function only uses EditorUI and not Doodle and is a candidate for // refactor into a subpackage if EditorUI itself can ever be decoupled. import ( "fmt" "git.kirsle.net/apps/doodle/lib/render" "git.kirsle.net/apps/doodle/lib/ui" "git.kirsle.net/apps/doodle/pkg/balance" "git.kirsle.net/apps/doodle/pkg/doodads" "git.kirsle.net/apps/doodle/pkg/log" "git.kirsle.net/apps/doodle/pkg/uix" ) // DraggableActor is a Doodad being dragged from the Doodad palette. type DraggableActor struct { canvas *uix.Canvas doodad *doodads.Doodad } // startDragActor begins the drag event for a Doodad onto a level. func (u *EditorUI) startDragActor(doodad *doodads.Doodad) { u.Supervisor.DragStart() // Create the canvas to render on the mouse cursor. drawing := uix.NewCanvas(doodad.Layers[0].Chunker.Size, false) drawing.LoadDoodad(doodad) drawing.Resize(doodad.Rect()) drawing.SetBackground(render.RGBA(0, 0, 1, 0)) // TODO: invisible becomes white drawing.MaskColor = balance.DragColor // blueprint effect u.DraggableActor = &DraggableActor{ canvas: drawing, doodad: doodad, } } // setupDoodadFrame configures the Doodad Palette tab for Edit Mode. // This is a subroutine of editor_ui.go#SetupPalette() // // Can return an error if userdir.ListDoodads() returns an error (like directory // not found), but it will *ALWAYS* return a valid ui.Frame -- it will just be // empty and uninitialized. func (u *EditorUI) setupDoodadFrame(e render.Engine, window *ui.Window) (*ui.Frame, error) { var ( frame = ui.NewFrame("Doodad Tab") perRow = balance.UIDoodadsPerRow ) doodadsAvailable, err := doodads.ListDoodads() if err != nil { return frame, fmt.Errorf( "setupDoodadFrame: doodads.ListDoodads: %s", err, ) } var buttonSize = (paletteWidth - window.BoxThickness(2)) / int32(perRow) // Draw the doodad buttons in a grid `perRow` buttons wide. var ( row *ui.Frame rowCount int // for labeling the ui.Frame for each row ) for i, filename := range doodadsAvailable { if row == nil || i%perRow == 0 { rowCount++ row = ui.NewFrame(fmt.Sprintf("Doodad Row %d", rowCount)) row.SetBackground(balance.WindowBackground) frame.Pack(row, ui.Pack{ Anchor: ui.N, Fill: true, }) } func(filename string) { doodad, err := doodads.LoadFile(filename) if err != nil { log.Error(err.Error()) doodad = doodads.New(balance.DoodadSize) } can := uix.NewCanvas(int(buttonSize), true) can.Name = filename can.SetBackground(render.White) can.LoadDoodad(doodad) btn := ui.NewButton(filename, 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{ Anchor: ui.W, }) // 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(e render.Point) { u.startDragActor(doodad) }) u.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(e) }(filename) } return frame, nil }