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package activities
import (
"log"
"muhq.space/muhqs-game/go/ui"
)
// ButtonList is an Activity that tries to fill its vertical space with buttons
// for the specified click handlers.
// A last back button is appended calling activities.PopActivity()
type ButtonList struct {
ui.Collection
}
const (
// TODO: determine required with for the displayed labels
BUTTON_LIST_BUTTON_WIDTH = 450
BUTTON_LIST_BUTTON_HEIGHT = 75
BUTTON_LIST_BUTTON_PADDING = 40
)
func NewButtonList(width, height int, labels []string, handlers []func(*ui.SimpleButton)) *ButtonList {
bl := &ButtonList{ui.Collection{Width: width, Height: height}}
if len(labels) != len(handlers) {
log.Panic("labels and handler mismatch")
}
x := (width - BUTTON_LIST_BUTTON_WIDTH) / 2
y := BUTTON_LIST_BUTTON_HEIGHT
for i, handler := range handlers {
btn := ui.NewSimpleButton(
x,
y,
BUTTON_LIST_BUTTON_WIDTH,
BUTTON_LIST_BUTTON_HEIGHT,
labels[i],
handler,
)
bl.AddWidget(btn)
y = y + BUTTON_LIST_BUTTON_HEIGHT + BUTTON_LIST_BUTTON_PADDING
}
back := ui.NewSimpleButton(
x,
y,
BUTTON_LIST_BUTTON_WIDTH,
BUTTON_LIST_BUTTON_HEIGHT,
"back",
func(*ui.SimpleButton) { PopActivity() },
)
log.Println("add back button at", x, y)
bl.AddWidget(back)
return bl
}
func (bl *ButtonList) Layout(int, int) (int, int) {
return bl.Width, bl.Height
}
func (bl *ButtonList) Update() error {
if err := ui.Update(); err != nil {
return err
}
return bl.Collection.Update()
}
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