package jp.juggler.subwaytooter

import android.view.ViewGroup
import androidx.recyclerview.widget.RecyclerView

internal class TabletColumnPagerAdapter(
	private val activity : ActMain
) : RecyclerView.Adapter<TabletColumnViewHolder>() {

	var columnWidth :Int = 0 // dividerの幅を含まない

	private val appState = activity.app_state

	override fun getItemCount() : Int =appState.columnCount

	override fun onCreateViewHolder(parent : ViewGroup, viewType : Int) : TabletColumnViewHolder=
		TabletColumnViewHolder(activity, parent)
	
	override fun onBindViewHolder(holder : TabletColumnViewHolder, position : Int) {
		val columnWidth = this.columnWidth
		if(columnWidth > 0) {
			val lp = holder.itemView.layoutParams
			lp.width = columnWidth
			holder.itemView.layoutParams = lp
		}
		
		holder.bind(appState.column(position)!!, position, appState.columnCount)
	}
	
	override fun onViewRecycled(holder : TabletColumnViewHolder) {
		super.onViewRecycled(holder)
		holder.onViewRecycled()
	}
}