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Now with ceramic capacitor decoding!
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255 changes: 255 additions & 0 deletions
255
app/src/main/java/com/ktprograms/ohmsnow/CapacitorActivity.kt
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| /* | ||
| * GNU General Public License v3.0 | ||
| * | ||
| * Copyright (c) 2021 Toh Jeen Gie Keith | ||
| * | ||
| * | ||
| * This file is part of Ohms Now!. | ||
| * | ||
| * Ohms Now! is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * Ohms Now! is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with Ohms Now!. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| package com.ktprograms.ohmsnow | ||
|
|
||
| import android.annotation.SuppressLint | ||
| import android.content.Intent | ||
| import android.content.SharedPreferences | ||
| import android.content.res.Configuration | ||
| import androidx.appcompat.app.AppCompatActivity | ||
| import android.os.Bundle | ||
| import android.view.Menu | ||
| import android.view.MenuItem | ||
| import android.view.MotionEvent | ||
| import android.widget.PopupMenu | ||
| import android.widget.TextView | ||
| import android.widget.Toast | ||
| import androidx.constraintlayout.widget.ConstraintLayout | ||
| import java.text.DecimalFormat | ||
| import kotlin.math.pow | ||
|
|
||
| class CapacitorActivity : AppCompatActivity() { | ||
| // View references | ||
| private val digit1: TextView by lazy { findViewById(R.id.digit_1_text_view) } | ||
| private val digit2: TextView by lazy { findViewById(R.id.digit_2_text_view) } | ||
| private val digitMultiplier: TextView by lazy { findViewById(R.id.digit_3_text_view) } | ||
| private val faradsTextView: TextView by lazy { findViewById(R.id.farads_text_view) } | ||
| private val capacitorScreenConstraintLayout: ConstraintLayout by lazy { findViewById(R.id.capacitor_screen_constraint_layout) } | ||
|
|
||
| // Digit states | ||
| private var digit1State = 2 | ||
| private var digit2State = 2 | ||
| private var digitMultiplierState = 2 | ||
|
|
||
| // Menu reference | ||
| private lateinit var menu: Menu | ||
|
|
||
| // X coordinate on ACTION_DOWN | ||
| private var previousX = 0F | ||
|
|
||
| // Minimum swipe amount | ||
| private val MIN_DISTANCE = 100 | ||
|
|
||
| // Shared Preference reference | ||
| val sp: SharedPreferences by lazy { getSharedPreferences("Prefs", MODE_PRIVATE) } | ||
|
|
||
| @SuppressLint("ClickableViewAccessibility") | ||
| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
| setContentView(R.layout.activity_capacitor) | ||
|
|
||
| if (sp.getString("Current", null) == "Resistor") { | ||
| startActivity(Intent(applicationContext, MainActivity::class.java)) | ||
| } | ||
|
|
||
| // Put the app icon in the app bar | ||
| supportActionBar?.setDisplayShowHomeEnabled(true) | ||
| if ((applicationContext.resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_NO) { | ||
| supportActionBar?.setIcon(R.drawable.app_icon) | ||
| } else { | ||
| supportActionBar?.setIcon(R.drawable.app_icon_dark) | ||
| } | ||
| supportActionBar?.setDisplayUseLogoEnabled(true) | ||
|
|
||
| capacitorScreenConstraintLayout.setOnTouchListener { _, m -> | ||
| when (m.action) { | ||
| MotionEvent.ACTION_DOWN -> { | ||
| previousX = m.x | ||
| } | ||
| MotionEvent.ACTION_UP -> { | ||
| if (previousX - m.x > MIN_DISTANCE) { | ||
| val prevPair = try { | ||
| e12.dropLastWhile { (it.first > digit1State) or ((it.first == digit1State) and (it.second >= digit2State)) }.last() | ||
| } catch (e: NoSuchElementException) { | ||
| digitMultiplierState = if (digitMultiplierState == 0) 9 else digitMultiplierState - 1 | ||
| e12.last() | ||
| } | ||
| digit1State = prevPair.first | ||
| digit2State = prevPair.second | ||
| updateAll() | ||
| } else if (m.x - previousX > MIN_DISTANCE) { | ||
| val prevPair = try { | ||
| e12.dropWhile { (it.first < digit1State) or ((it.first == digit1State) and (it.second <= digit2State)) }.first() | ||
| } catch (e: NoSuchElementException) { | ||
| digitMultiplierState = if (digitMultiplierState == 9) 0 else digitMultiplierState + 1 | ||
| e12.first() | ||
| } | ||
| digit1State = prevPair.first | ||
| digit2State = prevPair.second | ||
| updateAll() | ||
| } | ||
| } | ||
| } | ||
| true | ||
| } | ||
|
|
||
| digit1.setOnClickListener { | ||
| digit1State = if (digit1State == 9) 0 else digit1State + 1 | ||
| digit1.text = "$digit1State" | ||
| decodeFarads() | ||
| } | ||
| digit2.setOnClickListener { | ||
| digit2State = if (digit2State == 9) 0 else digit2State + 1 | ||
| digit2.text = "$digit2State" | ||
| decodeFarads() | ||
| } | ||
| digitMultiplier.setOnClickListener { | ||
| digitMultiplierState = if (digitMultiplierState >= 6) 0 else digitMultiplierState + 1 | ||
| digitMultiplier.text = "$digitMultiplierState" | ||
| decodeFarads() | ||
| } | ||
|
|
||
| digit1.setOnLongClickListener { | ||
| showDigitPopup(digit1, digit1State) { | ||
| digit1State = it | ||
| digit1.text = "$digit1State" | ||
| decodeFarads() | ||
| } | ||
| true | ||
| } | ||
| digit2.setOnLongClickListener { | ||
| showDigitPopup(digit2, digit2State) { | ||
| digit2State = it | ||
| digit2.text = "$digit2State" | ||
| decodeFarads() | ||
| } | ||
| true | ||
| } | ||
| digitMultiplier.setOnLongClickListener { | ||
| showMultiplierDigitPopup(digitMultiplier, digitMultiplierState) { | ||
| digitMultiplierState = it | ||
| digitMultiplier.text = "$digitMultiplierState" | ||
| decodeFarads() | ||
| } | ||
| true | ||
| } | ||
|
|
||
| // Call decodeFarads to initialize the faradsTextView | ||
| decodeFarads() | ||
| } | ||
|
|
||
| // Update all digits and texts | ||
| private fun updateAll() { | ||
| digit1.text = "$digit1State" | ||
| digit2.text = "$digit2State" | ||
| digitMultiplier.text = "$digitMultiplierState" | ||
| decodeFarads() | ||
| } | ||
|
|
||
| // Show popup menu on view | ||
| private fun showDigitPopup(digit: TextView, digitState: Int, f: (Int) -> Unit) { | ||
| val popup = PopupMenu(applicationContext, digit) | ||
| popup.inflate(R.menu.digit_numbers) | ||
|
|
||
| popup.setOnMenuItemClickListener { | ||
| f(when (it!!.itemId) { | ||
| R.id.digit_0 -> 0 | ||
| R.id.digit_1 -> 1 | ||
| R.id.digit_2 -> 2 | ||
| R.id.digit_3 -> 3 | ||
| R.id.digit_4 -> 4 | ||
| R.id.digit_5 -> 5 | ||
| R.id.digit_6 -> 6 | ||
| R.id.digit_7 -> 7 | ||
| R.id.digit_8 -> 8 | ||
| R.id.digit_9 -> 9 | ||
| else -> digitState | ||
| }) | ||
| true | ||
| } | ||
|
|
||
| popup.show() | ||
| } | ||
| private fun showMultiplierDigitPopup(digit: TextView, digitState: Int, f: (Int) -> Unit) { | ||
| val popup = PopupMenu(applicationContext, digit) | ||
| popup.inflate(R.menu.multiplier_digit_numbers) | ||
|
|
||
| popup.setOnMenuItemClickListener { | ||
| f(when (it!!.itemId) { | ||
| R.id.multiplier_digit_0 -> 0 | ||
| R.id.multiplier_digit_1 -> 1 | ||
| R.id.multiplier_digit_2 -> 2 | ||
| R.id.multiplier_digit_3 -> 3 | ||
| R.id.multiplier_digit_4 -> 4 | ||
| R.id.multiplier_digit_5 -> 5 | ||
| R.id.multiplier_digit_6 -> 6 | ||
| R.id.multiplier_digit_7 -> 7 | ||
| R.id.multiplier_digit_8 -> 8 | ||
| R.id.multiplier_digit_9 -> 9 | ||
| else -> digitState | ||
| }) | ||
| true | ||
| } | ||
|
|
||
| popup.show() | ||
| } | ||
|
|
||
| // Convert digit states to a string to display | ||
| @SuppressLint("SetTextI18n") | ||
| private fun decodeFarads() { | ||
| val multiplier = when (digitMultiplierState) { | ||
| in 0..1 -> "p" | ||
| in 2..4 -> "n" | ||
| in 5..7 -> "µ" | ||
| in 8..9 -> "m" | ||
| else -> return | ||
| } | ||
| val picoFarads = ((digit1State * 10) + digit2State) * ((10.0).pow((digitMultiplierState + 1).rem(3) - 1)) | ||
| faradsTextView.text = "${DecimalFormat("0.##").format(picoFarads)} ${multiplier}F" | ||
| } | ||
|
|
||
| // Initialize the menu | ||
| override fun onCreateOptionsMenu(menu: Menu?): Boolean { | ||
| this.menu = menu!! | ||
| menuInflater.inflate(R.menu.app_bar_menu, this.menu) | ||
| this.menu.findItem(R.id.menu_num_bands).isVisible = false | ||
| this.menu.findItem(R.id.menu_capacitor).isVisible = false | ||
| return true | ||
| } | ||
|
|
||
| // On menu item selected | ||
| @SuppressLint("UseCompatLoadingForDrawables") | ||
| override fun onOptionsItemSelected(item: MenuItem): Boolean { | ||
| when (item.itemId) { | ||
| R.id.menu_resistor -> { | ||
| with(sp.edit()) { | ||
| putString("Current", "Resistor") | ||
| apply() | ||
| } | ||
| startActivity(Intent(applicationContext, MainActivity::class.java)) | ||
| } | ||
| else -> return super.onOptionsItemSelected(item) | ||
| } | ||
| return true | ||
| } | ||
| } |
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