110 lines
3.8 KiB
Kotlin
110 lines
3.8 KiB
Kotlin
/*
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* Copyright (C) 2017 JRummy Apps Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.jrummyapps.android.colorpicker
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import android.graphics.Color
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import android.graphics.PorterDuff
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.widget.BaseAdapter
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import android.widget.ImageView
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import androidx.core.graphics.ColorUtils
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internal class ColorPaletteAdapter(
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val colors: IntArray,
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var selectedPosition: Int,
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val colorShape: ColorShape,
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val listener: (Int) -> Unit,
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) : BaseAdapter() {
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override fun getCount(): Int = colors.size
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override fun getItem(position: Int): Any = colors[position]
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override fun getItemId(position: Int): Long = position.toLong()
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override fun getView(position: Int, convertView: View?, parent: ViewGroup) =
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(convertView?.tag as? ViewHolder ?: ViewHolder(parent))
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.apply { bind(position) }
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.root
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fun selectNone() {
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selectedPosition = -1
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notifyDataSetChanged()
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}
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private inner class ViewHolder(parent: ViewGroup) {
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val root: View = run {
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LayoutInflater.from(parent.context).inflate(
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when (colorShape) {
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ColorShape.Square -> R.layout.cpv_color_item_square
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ColorShape.Circle -> R.layout.cpv_color_item_circle
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},
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parent,
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false
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).apply { tag = this@ViewHolder }
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}
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val colorPanelView: ColorPanelView = root.findViewById(R.id.cpv_color_panel_view)
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val imageView: ImageView = root.findViewById(R.id.cpv_color_image_view)
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val originalBorderColor: Int = colorPanelView.borderColor
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fun bind(position: Int) {
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val color = colors[position]
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val alpha = Color.alpha(color)
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colorPanelView.color = color
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imageView.setImageResource(
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if (selectedPosition == position)
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R.drawable.cpv_preset_checked
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else
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0
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)
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when {
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alpha == 255 -> {
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if (position == selectedPosition && ColorUtils.calculateLuminance(colors[position]) >= 0.65) {
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imageView.setColorFilter(Color.BLACK, PorterDuff.Mode.SRC_IN)
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} else {
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imageView.colorFilter = null
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}
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}
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alpha <= ALPHA_THRESHOLD -> {
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colorPanelView.borderColor = color or -0x1000000
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imageView.setColorFilter( /*color | 0xFF000000*/Color.BLACK,
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PorterDuff.Mode.SRC_IN
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)
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}
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else -> {
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colorPanelView.borderColor = originalBorderColor
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imageView.setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN)
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}
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}
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colorPanelView.setOnClickListener {
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if (selectedPosition != position) {
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selectedPosition = position
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notifyDataSetChanged()
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}
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listener(colors[position])
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}
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colorPanelView.setOnLongClickListener {
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colorPanelView.showHint()
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true
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}
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}
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}
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} |