From 420a6459e778cb448274085db88b2b42d9b396ef Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Wed, 2 Oct 2019 19:51:09 +0200
Subject: [PATCH] add portrait photo scrolling at selection

---
 .../gallery/pro/adapters/PortraitPhotosAdapter.kt      | 10 +++++++++-
 .../gallery/pro/fragments/PhotoFragment.kt             |  8 +++++---
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/adapters/PortraitPhotosAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/adapters/PortraitPhotosAdapter.kt
index 983ea00a2..aa4666cbf 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/adapters/PortraitPhotosAdapter.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/adapters/PortraitPhotosAdapter.kt
@@ -15,7 +15,7 @@ import com.simplemobiletools.gallery.pro.R
 import kotlinx.android.synthetic.main.portrait_photo_item.view.*
 import java.util.*
 
-class PortraitPhotosAdapter(val context: Context, val photos: ArrayList<String>, val sideElementWidth: Int, val itemClick: (Int) -> Unit) :
+class PortraitPhotosAdapter(val context: Context, val photos: ArrayList<String>, val sideElementWidth: Int, val itemClick: (Int, Int) -> Unit) :
         RecyclerView.Adapter<PortraitPhotosAdapter.ViewHolder>() {
 
     private var currentSelection = photos.firstOrNull { it.contains("cover", true) } ?: photos.firstOrNull { it.isNotEmpty() }
@@ -60,6 +60,14 @@ class PortraitPhotosAdapter(val context: Context, val photos: ArrayList<String>,
                         .transition(DrawableTransitionOptions.withCrossFade())
                         .apply(options)
                         .into(portrait_photo_item_thumbnail)
+
+                if (photo.isNotEmpty()) {
+                    setOnClickListener {
+                        itemClick(position, x.toInt())
+                    }
+                } else {
+                    setOnClickListener(null)
+                }
             }
             return itemView
         }
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/fragments/PhotoFragment.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/fragments/PhotoFragment.kt
index ffc8d4a2a..c1401fe21 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/fragments/PhotoFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/fragments/PhotoFragment.kt
@@ -458,7 +458,7 @@ class PhotoFragment : ViewPagerFragment() {
         val files = File(mMedium.parentPath).listFiles()?.toMutableList() as? ArrayList<File>
         if (files != null) {
             val screenWidth = context!!.realScreenSize.x
-            val itemWidth = context!!.resources.getDimension(R.dimen.portrait_photos_stripe_height) + context!!.resources.getDimension(R.dimen.one_dp)
+            val itemWidth = context!!.resources.getDimension(R.dimen.portrait_photos_stripe_height).toInt() + context!!.resources.getDimension(R.dimen.one_dp).toInt()
             val sideWidth = screenWidth / 2 - itemWidth / 2
             val fakeItemsCnt = ceil(sideWidth / itemWidth.toDouble()).toInt()
 
@@ -480,8 +480,10 @@ class PhotoFragment : ViewPagerFragment() {
                 curWidth += itemWidth
             }
 
-            val sideElementWidth = curWidth.toInt() - screenWidth
-            val adapter = PortraitPhotosAdapter(context!!, paths, sideElementWidth) {
+            val sideElementWidth = curWidth - screenWidth
+            val adapter = PortraitPhotosAdapter(context!!, paths, sideElementWidth) { position, x ->
+                mView.photo_portrait_stripe.smoothScrollBy((x + itemWidth / 2) - screenWidth / 2, 0)
+
             }
 
             mView.photo_portrait_stripe.adapter = adapter