show a list of thumbnails at the editor, for applying filters

app/build.gradle

@@ -57,6 +57,7 @@ dependencies {
     implementation 'com.google.android.exoplayer:exoplayer-core:2.8.2'
     implementation 'com.google.vr:sdk-panowidget:1.150.0'
     implementation 'org.apache.sanselan:sanselan:0.97-incubator'
+    implementation 'info.androidhive:imagefilters:1.0.7'
 
     kapt "android.arch.persistence.room:compiler:1.1.1"
     implementation "android.arch.persistence.room:runtime:1.1.1"

app/src/main/AndroidManifest.xml

@@ -21,7 +21,8 @@
         android:label="@string/app_launcher_name"
         android:roundIcon="@mipmap/ic_launcher"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        tools:replace="android:label">
 
         <activity
             android:name=".activities.SplashActivity"

app/src/main/kotlin/com/simplemobiletools/gallery/activities/EditActivity.kt

@@ -11,24 +11,35 @@ import android.os.Bundle
 import android.provider.MediaStore
 import android.view.Menu
 import android.view.MenuItem
+import com.bumptech.glide.Glide
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.OTG_PATH
 import com.simplemobiletools.commons.helpers.PERMISSION_WRITE_STORAGE
 import com.simplemobiletools.commons.helpers.REAL_FILE_PATH
 import com.simplemobiletools.commons.models.FileDirItem
 import com.simplemobiletools.gallery.R
+import com.simplemobiletools.gallery.adapters.FiltersAdapter
 import com.simplemobiletools.gallery.dialogs.ResizeDialog
 import com.simplemobiletools.gallery.dialogs.SaveAsDialog
 import com.simplemobiletools.gallery.extensions.config
 import com.simplemobiletools.gallery.extensions.openEditor
+import com.simplemobiletools.gallery.models.FilterItem
 import com.theartofdev.edmodo.cropper.CropImageView
+import com.zomato.photofilters.FilterPack
 import kotlinx.android.synthetic.main.activity_edit.*
 import kotlinx.android.synthetic.main.bottom_actions_aspect_ratio.*
+import kotlinx.android.synthetic.main.bottom_editor_actions_filter.*
 import kotlinx.android.synthetic.main.bottom_editor_crop_rotate_actions.*
 import kotlinx.android.synthetic.main.bottom_editor_primary_actions.*
 import java.io.*
 
 class EditActivity : SimpleActivity(), CropImageView.OnCropImageCompleteListener {
+    companion object {
+        init {
+            System.loadLibrary("NativeImageProcessor")
+        }
+    }
+
     private val ASPECT_X = "aspectX"
     private val ASPECT_Y = "aspectY"
     private val CROP = "crop"
@@ -237,9 +248,27 @@ class EditActivity : SimpleActivity(), CropImageView.OnCropImageCompleteListener
         bottom_editor_filter_actions.beVisibleIf(currPrimaryAction == PRIMARY_ACTION_FILTER)
         bottom_editor_crop_rotate_actions.beVisibleIf(currPrimaryAction == PRIMARY_ACTION_CROP_ROTATE)
 
+        if (currPrimaryAction == PRIMARY_ACTION_FILTER) {
+            Thread {
+                val size = resources.getDimension(R.dimen.bottom_filters_thumbnail_height).toInt()
+                val bitmap = Glide.with(this).asBitmap().load(uri).submit(size, size).get()
+                runOnUiThread {
+                    val filterItems = FilterPack.getFilterPack(this).map { FilterItem(bitmap, it) } as ArrayList<FilterItem>
+
+                    val adapter = FiltersAdapter(filterItems) {
+
+                    }
+
+                    bottom_actions_filter_list.adapter = adapter
+                    adapter.notifyDataSetChanged()
+                }
+            }.start()
+        }
+
         if (currPrimaryAction != PRIMARY_ACTION_CROP_ROTATE) {
             bottom_aspect_ratios.beGone()
             currCropRotateAction = CROP_ROTATE_NONE
+            updateCropRotateActionButtons()
         }
     }
 

app/src/main/kotlin/com/simplemobiletools/gallery/adapters/FiltersAdapter.kt

@@ -0,0 +1,38 @@
+package com.simplemobiletools.gallery.adapters
+
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.simplemobiletools.gallery.R
+import com.simplemobiletools.gallery.models.FilterItem
+import kotlinx.android.synthetic.main.editor_filter_item.view.*
+import java.util.*
+
+class FiltersAdapter(val filterItems: ArrayList<FilterItem>, val itemClick: (FilterItem) -> Unit) : RecyclerView.Adapter<FiltersAdapter.ViewHolder>() {
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bindView(filterItems[position], itemClick)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.editor_filter_item, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun getItemCount() = filterItems.size
+
+    class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
+        fun bindView(filterItem: FilterItem, itemClick: (FilterItem) -> Unit): View {
+            itemView.apply {
+                editor_filter_item_label.text = filterItem.filter.name
+                editor_filter_item_thumbnail.setImageBitmap(filterItem.bitmap)
+
+                setOnClickListener {
+                    itemClick.invoke(filterItem)
+                }
+            }
+            return itemView
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/gallery/models/FilterItem.kt

@@ -0,0 +1,6 @@
+package com.simplemobiletools.gallery.models
+
+import android.graphics.Bitmap
+import com.zomato.photofilters.imageprocessors.Filter
+
+data class FilterItem(val bitmap: Bitmap, val filter: Filter)

app/src/main/res/layout/bottom_editor_actions_filter.xml

@@ -1,15 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/bottom_actions_filter_wrapper"
     android:layout_width="match_parent"
-    android:layout_height="@dimen/bottom_actions_height"
+    android:layout_height="@dimen/bottom_filters_height"
     android:paddingTop="@dimen/medium_margin">
 
     <com.simplemobiletools.commons.views.MyRecyclerView
         android:id="@+id/bottom_actions_filter_list"
         android:layout_width="match_parent"
-        android:layout_height="@dimen/bottom_actions_height"
-        android:orientation="horizontal"/>
+        android:layout_height="@dimen/bottom_filters_height"
+        android:background="@color/crop_image_view_background"
+        android:orientation="horizontal"
+        app:layoutManager="com.simplemobiletools.commons.views.MyLinearLayoutManager"/>
 
 </RelativeLayout>

app/src/main/res/layout/editor_filter_item.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/editor_filter_item_holder"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:paddingLeft="@dimen/tiny_margin"
+    android:paddingRight="@dimen/tiny_margin"
+    android:paddingTop="@dimen/tiny_margin">
+
+    <ImageView
+        android:id="@+id/editor_filter_item_thumbnail"
+        android:layout_width="@dimen/bottom_filters_thumbnail_height"
+        android:layout_height="@dimen/bottom_filters_thumbnail_height"
+        android:layout_above="@+id/editor_filter_item_label"/>
+
+    <TextView
+        android:id="@+id/editor_filter_item_label"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_centerHorizontal="true"
+        android:gravity="center_horizontal"
+        android:textColor="@android:color/white"
+        android:textSize="@dimen/smaller_text_size"
+        tools:text="Filter"/>
+
+</RelativeLayout>

app/src/main/res/values/dimens.xml

@@ -11,4 +11,6 @@
     <dimen name="instant_change_bar_width">30dp</dimen>
     <dimen name="list_view_folder_thumbnail_size">72dp</dimen>
     <dimen name="bottom_actions_height">64dp</dimen>
+    <dimen name="bottom_filters_thumbnail_height">76dp</dimen>
+    <dimen name="bottom_filters_height">90dp</dimen>
 </resources>