boltbrowser/vendor/github.com/br0xen/termbox-util/termbox_dropmenu.go

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package termboxUtil
import "github.com/nsf/termbox-go"
// DropMenu is a title that, when active drops a menu down
type DropMenu struct {
id string
title string
x, y, width, height int
bg, fg termbox.Attribute
selectedBg, selectedFg termbox.Attribute
menu *Menu
menuSelected bool
showMenu bool
bordered bool
tabSkip bool
}
// CreateDropMenu Creates a menu with the specified attributes
func CreateDropMenu(title string, options []string, x, y, width, height int, fg, bg, selectedFg, selectedBg termbox.Attribute) *DropMenu {
i := DropMenu{
title: title,
x: x, y: y, width: width, height: height,
fg: fg, bg: bg,
selectedFg: fg, selectedBg: bg,
}
i.menu = CreateMenu("", options, x, y+2, width, height, fg, bg)
return &i
}
// GetID returns this control's ID
func (i *DropMenu) GetID() string { return i.id }
// SetID sets this control's ID
func (i *DropMenu) SetID(newID string) {
i.id = newID
}
// GetTitle returns the current title of the menu
func (i *DropMenu) GetTitle() string { return i.title }
// SetTitle sets the current title of the menu to s
func (i *DropMenu) SetTitle(s string) {
i.title = s
}
// GetMenu returns the menu for this dropmenu
func (i *DropMenu) GetMenu() *Menu {
return i.menu
}
// GetX returns the current x coordinate of the menu
func (i *DropMenu) GetX() int { return i.x }
// SetX sets the current x coordinate of the menu to x
func (i *DropMenu) SetX(x int) {
i.x = x
}
// GetY returns the current y coordinate of the menu
func (i *DropMenu) GetY() int { return i.y }
// SetY sets the current y coordinate of the menu to y
func (i *DropMenu) SetY(y int) {
i.y = y
}
// GetWidth returns the current width of the menu
func (i *DropMenu) GetWidth() int { return i.width }
// SetWidth sets the current menu width to width
func (i *DropMenu) SetWidth(width int) {
i.width = width
}
// GetHeight returns the current height of the menu
func (i *DropMenu) GetHeight() int { return i.height }
// SetHeight set the height of the menu to height
func (i *DropMenu) SetHeight(height int) {
i.height = height
}
// GetFgColor returns the foreground color
func (i *DropMenu) GetFgColor() termbox.Attribute { return i.fg }
// SetFgColor sets the foreground color
func (i *DropMenu) SetFgColor(fg termbox.Attribute) {
i.fg = fg
}
// GetBgColor returns the background color
func (i *DropMenu) GetBgColor() termbox.Attribute { return i.bg }
// SetBgColor sets the current background color
func (i *DropMenu) SetBgColor(bg termbox.Attribute) {
i.bg = bg
}
// IsBordered returns the bordered flag
func (i *DropMenu) IsBordered() bool { return i.bordered }
// SetBordered sets the bordered flag
func (i *DropMenu) SetBordered(b bool) {
i.bordered = b
i.menu.SetBordered(b)
}
// IsDone returns whether the user has answered the modal
func (i *DropMenu) IsDone() bool { return i.menu.isDone }
// SetDone sets whether the modal has completed it's purpose
func (i *DropMenu) SetDone(b bool) {
i.menu.isDone = b
}
// IsTabSkipped returns whether this modal has it's tabskip flag set
func (i *DropMenu) IsTabSkipped() bool {
return i.tabSkip
}
// SetTabSkip sets the tabskip flag for this control
func (i *DropMenu) SetTabSkip(b bool) {
i.tabSkip = b
}
// ShowMenu tells the menu to draw the options
func (i *DropMenu) ShowMenu() {
i.showMenu = true
i.menuSelected = true
}
// HideMenu tells the menu to hide the options
func (i *DropMenu) HideMenu() {
i.showMenu = false
i.menuSelected = false
}
// HandleEvent handles the termbox event and returns whether it was consumed
func (i *DropMenu) HandleEvent(event termbox.Event) bool {
moveUp := (event.Key == termbox.KeyArrowUp || (i.menu.vimMode && event.Ch == 'k'))
moveDown := (event.Key == termbox.KeyArrowDown || (i.menu.vimMode && event.Ch == 'j'))
if i.menuSelected {
selIdx := i.menu.GetSelectedIndex()
if (moveUp && selIdx == 0) || (moveDown && selIdx == (len(i.menu.options)-1)) {
i.menuSelected = false
} else {
if i.menu.HandleEvent(event) {
if i.menu.IsDone() {
i.HideMenu()
}
return true
}
}
} else {
i.ShowMenu()
return true
}
return false
}
// Draw draws the menu
func (i *DropMenu) Draw() {
// The title
ttlFg, ttlBg := i.fg, i.bg
if !i.menuSelected {
ttlFg, ttlBg = i.selectedFg, i.selectedBg
}
ttlTxt := i.title
if i.showMenu {
ttlTxt = ttlTxt + "-Showing Menu"
}
DrawStringAtPoint(AlignText(i.title, i.width, AlignLeft), i.x, i.y, ttlFg, ttlBg)
if i.showMenu {
i.menu.Draw()
}
}