creating a line color picker dialog

commons/src/main/kotlin/com/simplemobiletools/commons/dialogs/LineColorPickerDialog.kt

@@ -0,0 +1,88 @@
+package com.simplemobiletools.commons.dialogs
+
+import android.content.Context
+import android.support.v7.app.AlertDialog
+import android.view.LayoutInflater
+import android.view.WindowManager
+import com.simplemobiletools.commons.R
+import com.simplemobiletools.commons.extensions.baseConfig
+import com.simplemobiletools.commons.extensions.setupDialogStuff
+import com.simplemobiletools.commons.interfaces.LineColorPickerListener
+import kotlinx.android.synthetic.main.dialog_line_color_picker.view.*
+import java.util.*
+
+class LineColorPickerDialog(val context: Context, val callback: (color: Int) -> Unit) {
+    private val PRIMARY_COLORS_COUNT = 19
+    private val DEFAULT_PRIMARY_COLOR_INDEX = 14
+    private val DEFAULT_SECONDARY_COLOR_INDEX = 6
+
+    private var dialog: AlertDialog? = null
+
+    init {
+        val view = LayoutInflater.from(context).inflate(R.layout.dialog_line_color_picker, null).apply {
+            val indexes = getColorIndexes(context.baseConfig.primaryColor)
+
+            primary_line_color_picker.updateColors(getColors(R.array.md_primary_colors), indexes.first)
+            primary_line_color_picker.listener = object : LineColorPickerListener {
+                override fun colorChanged(index: Int) {
+                    val secondaryColors = getColorsForIndex(index)
+                    secondary_line_color_picker.updateColors(secondaryColors)
+                    dialog?.window?.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND)
+                }
+            }
+
+            secondary_line_color_picker.updateColors(getColorsForIndex(indexes.first), indexes.second)
+            secondary_line_color_picker.listener = object : LineColorPickerListener {
+                override fun colorChanged(index: Int) {
+                    dialog?.window?.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND)
+                }
+            }
+        }
+
+        dialog = AlertDialog.Builder(context)
+                .setPositiveButton(R.string.ok, { dialog, which -> dialogConfirmed() })
+                .setNegativeButton(R.string.cancel, null)
+                .create().apply {
+            context.setupDialogStuff(view, this)
+        }
+    }
+
+    private fun getColorIndexes(color: Int): Pair<Int, Int> {
+        for (i in 0 until PRIMARY_COLORS_COUNT) {
+            val colors = getColorsForIndex(i)
+            val size = colors.size
+            (0 until size).filter { color == colors[it] }
+                    .forEach { return Pair(i, it) }
+        }
+        return Pair(DEFAULT_PRIMARY_COLOR_INDEX, DEFAULT_SECONDARY_COLOR_INDEX)
+    }
+
+    private fun dialogConfirmed() {
+
+    }
+
+    private fun getColorsForIndex(index: Int) = when (index) {
+        0 -> getColors(R.array.md_reds)
+        1 -> getColors(R.array.md_pinks)
+        2 -> getColors(R.array.md_purples)
+        3 -> getColors(R.array.md_deep_purples)
+        4 -> getColors(R.array.md_indigos)
+        5 -> getColors(R.array.md_blues)
+        6 -> getColors(R.array.md_light_blues)
+        7 -> getColors(R.array.md_cyans)
+        8 -> getColors(R.array.md_teals)
+        9 -> getColors(R.array.md_greens)
+        10 -> getColors(R.array.md_light_greens)
+        11 -> getColors(R.array.md_limes)
+        12 -> getColors(R.array.md_yellows)
+        13 -> getColors(R.array.md_ambers)
+        14 -> getColors(R.array.md_oranges)
+        15 -> getColors(R.array.md_deep_oranges)
+        16 -> getColors(R.array.md_browns)
+        17 -> getColors(R.array.md_greys)
+        18 -> getColors(R.array.md_blue_greys)
+        else -> throw RuntimeException("Invalid color id $index")
+    }
+
+    private fun getColors(id: Int) = context.resources.getIntArray(id).toCollection(ArrayList())
+}

commons/src/main/kotlin/com/simplemobiletools/commons/views/LineColorPicker.kt

@@ -16,6 +16,7 @@ class LineColorPicker(context: Context, attrs: AttributeSet) : LinearLayout(cont
     private var stripeWidth = 0
     private var unselectedMargin = 0
     private var lastColorIndex = -1
+    private var wasInit = false
     private var colors = ArrayList<Int>()
 
     var listener: LineColorPickerListener? = null
@@ -29,6 +30,12 @@ class LineColorPicker(context: Context, attrs: AttributeSet) : LinearLayout(cont
                 if (colorsCount != 0)
                     stripeWidth = width / colorsCount
             }
+
+            if (!wasInit) {
+                wasInit = true
+                initColorPicker()
+                updateItemMargin(lastColorIndex, false)
+            }
         }
         orientation = LinearLayout.HORIZONTAL
 
@@ -44,13 +51,22 @@ class LineColorPicker(context: Context, attrs: AttributeSet) : LinearLayout(cont
         }
     }
 
-    fun updateColors(colors: ArrayList<Int>) {
+    fun updateColors(colors: ArrayList<Int>, selectColorIndex: Int = -1) {
         this.colors = colors
         colorsCount = colors.size
         if (pickerWidth != 0) {
             stripeWidth = pickerWidth / colorsCount
         }
 
+        if (selectColorIndex != -1) {
+            lastColorIndex = selectColorIndex
+        }
+
+        initColorPicker()
+        updateItemMargin(lastColorIndex, false)
+    }
+
+    private fun initColorPicker() {
         removeAllViews()
         val inflater = LayoutInflater.from(context)
         colors.forEach {

commons/src/main/res/layout/dialog_line_color_picker.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/line_color_picker_holder"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="@dimen/activity_margin">
+
+    <com.simplemobiletools.commons.views.LineColorPicker
+        android:id="@+id/primary_line_color_picker"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/line_color_picker_height"/>
+
+    <com.simplemobiletools.commons.views.LineColorPicker
+        android:id="@+id/secondary_line_color_picker"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/line_color_picker_height"
+        android:layout_below="@+id/primary_line_color_picker"
+        android:layout_marginTop="@dimen/big_margin"/>
+
+</RelativeLayout>