[WIP] Canvas module

canvas/.gitignore

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+/build

canvas/build.gradle.kts

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+plugins {
+    alias(libs.plugins.androidLibrary)
+    alias(libs.plugins.jetbrainsKotlinAndroid)
+    id("org.jetbrains.kotlin.plugin.serialization") version ("1.8.21")
+    id("kotlin-kapt")
+}
+
+android {
+    namespace = "dev.arkbuilders.canvas"
+    compileSdk = 34
+
+    defaultConfig {
+        minSdk = 29
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildFeatures {
+        compose = true
+    }
+
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.10"
+    }
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.android.material)
+    implementation(libs.androidx.ui.android)
+    implementation(project(":filepicker"))
+
+    val compose_version = "1.5.4"
+    implementation("androidx.compose.ui:ui:$compose_version")
+    implementation("androidx.compose.material:material:$compose_version")
+    implementation("androidx.compose.ui:ui-tooling-preview:$compose_version")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.3.1")
+    implementation("androidx.activity:activity-compose:1.3.1")
+    implementation("com.jakewharton.timber:timber:5.0.1")
+
+
+    implementation("com.godaddy.android.colorpicker:compose-color-picker:0.7.0")
+    implementation("androidx.navigation:navigation-compose:2.5.2")
+    implementation("io.github.hokofly:hoko-blur:1.5.3")
+
+    implementation("com.github.bumptech.glide:glide:4.16.0")
+    kapt("com.github.bumptech.glide:compiler:4.16.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.4.0")
+
+    implementation("androidx.preference:preference-ktx:1.2.0")
+
+    implementation("androidx.preference:preference:1.2.0'")
+    implementation("com.google.dagger:hilt-android:2.48")
+    kapt("com.google.dagger:hilt-compiler:2.48")
+    kapt("androidx.hilt:hilt-compiler:1.0.0")
+
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.test.junit)
+    androidTestImplementation(libs.androidx.test.espresso)
+}

canvas/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

canvas/src/androidTest/java/dev/arkbuilders/canvas/ExampleInstrumentedTest.kt

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+package dev.arkbuilders.canvas
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("dev.arkbuilders.canvas.test", appContext.packageName)
+    }
+}

canvas/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+</manifest>

canvas/src/main/java/dev/arkbuilders/canvas/presentation/ArkCanvasFragment.kt

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+package dev.arkbuilders.canvas.presentation
+
+import android.os.Build
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.annotation.RequiresApi
+import androidx.compose.ui.platform.ComposeView
+import androidx.compose.ui.platform.ViewCompositionStrategy
+import androidx.fragment.app.Fragment
+import dev.arkbuilders.canvas.R
+import dev.arkbuilders.canvas.presentation.data.Preferences
+import dev.arkbuilders.canvas.presentation.data.Resolution
+import dev.arkbuilders.canvas.presentation.drawing.EditManager
+import dev.arkbuilders.canvas.presentation.edit.EditScreen
+import dev.arkbuilders.canvas.presentation.edit.EditViewModel
+import dev.arkbuilders.canvas.presentation.resourceloader.BitmapResourceManager
+import dev.arkbuilders.canvas.presentation.resourceloader.CanvasResourceManager
+import dev.arkbuilders.canvas.presentation.resourceloader.SvgResourceManager
+import java.nio.file.Path
+import kotlin.io.path.Path
+
+private const val imagePath = "image_path_param"
+
+class ArkCanvasFragment : Fragment() {
+    private lateinit var imagePathParam: String
+
+    private lateinit var prefs: Preferences
+
+    private lateinit var viewModel: EditViewModel
+    private lateinit var bitmapResourceManager: CanvasResourceManager
+    private lateinit var svgResourceManager: CanvasResourceManager
+
+    lateinit var editManager: EditManager
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        arguments?.let {
+            imagePathParam = it.getString(imagePath) ?: ""
+        }
+        val context = requireActivity().applicationContext
+        prefs = Preferences(appCtx = context)
+        editManager = EditManager()
+        bitmapResourceManager = BitmapResourceManager(context = context, editManager = editManager)
+        svgResourceManager = SvgResourceManager(editManager = editManager)
+        viewModel = EditViewModel(
+            primaryColor = 0xFF101828,
+            launchedFromIntent = false,
+            imagePath = pathFromString(),
+            imageUri = null,
+            maxResolution = Resolution(350, 720),
+            prefs = prefs,
+            editManager = editManager,
+            bitMapResourceManager = bitmapResourceManager,
+            svgResourceManager = svgResourceManager,
+        )
+    }
+
+    private fun pathFromString(): Path?{
+        return if (imagePathParam.isEmpty()) {
+            null
+        } else {
+            Path(imagePathParam)
+        }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_ark_canvas, container, false)
+    }
+
+    @RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        val composeView = view.findViewById<ComposeView>(R.id.compose_view)
+
+        composeView.apply {
+            setViewCompositionStrategy(
+                ViewCompositionStrategy.DisposeOnViewTreeLifecycleDestroyed
+            )
+            setContent {
+                // Set Content here
+                EditScreen(
+                    imagePath = null,
+                    imageUri = null,
+                    fragmentManager = requireActivity().supportFragmentManager,
+                    navigateBack = { requireActivity().supportFragmentManager.popBackStackImmediate() },
+                    launchedFromIntent = false,
+                    maxResolution = Resolution(350, 720),
+                    onSaveSvg = { /*TODO*/ },
+                    viewModel = viewModel
+                )
+            }
+        }
+    }
+
+    companion object {
+        @JvmStatic
+        fun newInstance(param1: String) =
+            ArkCanvasFragment().apply {
+                arguments = Bundle().apply {
+                    putString(imagePath, param1)
+                }
+            }
+    }
+}

canvas/src/main/java/dev/arkbuilders/canvas/presentation/data/ImageDefaults.kt

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+package dev.arkbuilders.canvas.presentation.data
+
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.IntSize
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ImageDefaults(
+    val colorValue: ULong = Color.White.value,
+    val resolution: Resolution? = null
+)
+
+@Serializable
+data class Resolution(
+    val width: Int,
+    val height: Int
+) {
+    fun toIntSize() = IntSize(this.width, this.height)
+
+    companion object {
+        fun fromIntSize(intSize: IntSize) = Resolution(intSize.width, intSize.height)
+    }
+}

canvas/src/main/java/dev/arkbuilders/canvas/presentation/data/Preferences.kt

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+package dev.arkbuilders.canvas.presentation.data
+
+import android.content.Context
+import androidx.compose.ui.graphics.Color
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import java.io.IOException
+import java.nio.file.Files
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.io.path.exists
+import kotlin.io.path.readText
+import kotlin.io.path.writeText
+import kotlin.text.Charsets.UTF_8
+
+@Singleton
+class Preferences @Inject constructor(private val appCtx: Context) {
+
+    suspend fun persistUsedColors(
+        colors: List<Color>
+    ) = withContext(Dispatchers.IO) {
+        try {
+            val colorsStorage = appCtx.filesDir.resolve(COLORS_STORAGE)
+                .toPath()
+            val lines = colors.map { it.value.toString() }
+            Files.write(colorsStorage, lines, UTF_8)
+        } catch (e: IOException) {
+            e.printStackTrace()
+        }
+    }
+
+    suspend fun readUsedColors(): List<Color> {
+        val colors = mutableListOf<Color>()
+        withContext(Dispatchers.IO) {
+
+            try {
+                val colorsStorage = appCtx
+                    .filesDir
+                    .resolve(COLORS_STORAGE)
+                    .toPath()
+
+                if (colorsStorage.exists()) {
+                    Files.readAllLines(colorsStorage, UTF_8).forEach { line ->
+                        val color = Color(line.toULong())
+                        colors.add(color)
+                    }
+                }
+            } catch (e: IOException) {
+                e.printStackTrace()
+            }
+        }
+        return colors
+    }
+
+    suspend fun persistDefaults(color: Color, resolution: Resolution) {
+        withContext(Dispatchers.IO) {
+            val defaultsStorage = appCtx.filesDir.resolve(DEFAULTS_STORAGE)
+                .toPath()
+            val defaults = ImageDefaults(
+                color.value,
+                resolution
+            )
+            val jsonString = Json.encodeToString(defaults)
+            defaultsStorage.writeText(jsonString, UTF_8)
+        }
+    }
+
+    suspend fun readDefaults(): ImageDefaults {
+        var defaults = ImageDefaults()
+        try {
+            withContext(Dispatchers.IO) {
+                val defaultsStorage = appCtx.filesDir.resolve(DEFAULTS_STORAGE)
+                    .toPath()
+                if (defaultsStorage.exists()) {
+                    val jsonString = defaultsStorage.readText(UTF_8)
+                    defaults = Json.decodeFromString(jsonString)
+                }
+            }
+        } catch (e: IOException) {
+            e.printStackTrace()
+        }
+        return defaults
+    }
+
+    companion object {
+        private const val COLORS_STORAGE = "colors"
+        private const val DEFAULTS_STORAGE = "defaults"
+    }
+}