ImageViewer fix simple warnings and code style issues (#3025)

examples/imageviewer/shared/src/androidMain/kotlin/example/imageviewer/storage/AndroidImageStorage.kt

@@ -23,8 +23,6 @@ import kotlinx.serialization.json.Json
 import org.jetbrains.compose.resources.ExperimentalResourceApi
 import org.jetbrains.compose.resources.resource
 import java.io.File
-import java.util.UUID
-
 
 private const val maxStorableImageSizePx = 2000
 private const val storableThumbnailSizePx = 200

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/ImageViewer.common.kt

@@ -67,7 +67,7 @@ fun ImageViewerWithProvidedDependencies(
             slideInHorizontally { w -> multiplier * w } with
                     slideOutHorizontally { w -> multiplier * -1 * w }
         }
-    }) { (index, page) ->
+    }) { (_, page) ->
         when (page) {
             is GalleryPage -> {
                 GalleryScreen(

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/NameAndDescription.common.kt

@@ -2,7 +2,12 @@ package example.imageviewer
 
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember
-import kotlinx.datetime.*
+import kotlinx.datetime.Clock
+import kotlinx.datetime.LocalDateTime
+import kotlinx.datetime.Month
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toInstant
+import kotlinx.datetime.toLocalDateTime
 
 class NameAndDescription(
     val name: String,

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/platform.common.kt

@@ -2,7 +2,6 @@ package example.imageviewer
 
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
-import example.imageviewer.model.PictureData
 import kotlinx.coroutines.CoroutineDispatcher
 
 expect fun Modifier.notchPadding(): Modifier

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/style/Palette.kt

@@ -5,46 +5,18 @@ import androidx.compose.material.LocalTextStyle
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.ProvideTextStyle
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.sp
 
 object ImageviewerColors {
-    val Gray = Color.DarkGray
-    val LightGray = Color(100, 100, 100)
-    val DarkGray = Color(32, 32, 32)
-    val PreviewImageAreaHoverColor = Color(45, 45, 45)
     val ToastBackground = Color(23, 23, 23)
-    val MiniatureColor = Color(50, 50, 50)
-    val MiniatureHoverColor = Color(55, 55, 55)
-    val Foreground = Color(210, 210, 210)
-    val TranslucentBlack = Color(0, 0, 0, 60)
-    val TranslucentWhite = Color(255, 255, 255, 20)
-    val Transparent = Color.Transparent
-
     val background = Color(0xFFFFFFFF)
     val onBackground = Color(0xFF19191C)
 
     val fullScreenImageBackground = Color(0xFF19191C)
     val filterButtonsBackground = fullScreenImageBackground.copy(alpha = 0.7f)
     val uiLightBlack = Color(25, 25, 28).copy(alpha = 0.7f)
-    val textOnImage = Color.White
     val noteBlockBackground = Color(0xFFF3F3F4)
-
-
-    val KotlinGradient0 = Color(0xFF7F52FF)
-    val KotlinGradient50 = Color(0xFFC811E2)
-    val KotlinGradient100 = Color(0xFFE54857)
-
-    val kotlinHorizontalGradientBrush = Brush.horizontalGradient(
-        colors = listOf(
-            KotlinGradient0,
-            KotlinGradient50,
-            KotlinGradient100
-        )
-    )
-
-    fun buttonBackground(isHover: Boolean) = if (isHover) TranslucentBlack else Transparent
 }
 
 @Composable

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/CameraScreen.kt

@@ -3,7 +3,12 @@ package example.imageviewer.view
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.runtime.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import example.imageviewer.LocalImageProvider

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/CameraView.common.kt

@@ -2,9 +2,11 @@ package example.imageviewer.view
 
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
-import example.imageviewer.ImageStorage
 import example.imageviewer.PlatformStorableImage
 import example.imageviewer.model.PictureData
 
 @Composable
-expect fun CameraView(modifier: Modifier, onCapture: (picture: PictureData.Camera, image: PlatformStorableImage)->Unit)
+expect fun CameraView(
+    modifier: Modifier,
+    onCapture: (picture: PictureData.Camera, image: PlatformStorableImage) -> Unit
+)

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/MemoryScreen.kt

@@ -37,7 +37,6 @@ import example.imageviewer.isShareFeatureSupported
 import example.imageviewer.model.*
 import example.imageviewer.shareIcon
 import example.imageviewer.style.ImageviewerColors
-import org.jetbrains.compose.resources.ExperimentalResourceApi
 
 @Composable
 fun MemoryScreen(
@@ -197,7 +196,6 @@ private fun MemoryHeader(bitmap: ImageBitmap, picture: PictureData, onClick: ()
     }
 }
 
-@OptIn(ExperimentalResourceApi::class)
 @Composable
 fun BoxScope.MagicButtonOverlay(onClick: () -> Unit) {
     Column(
@@ -248,7 +246,7 @@ fun BoxScope.MemoryTextOverlay(picture: PictureData) {
 @OptIn(ExperimentalFoundationApi::class)
 @Composable
 fun Collapsible(s: String, onEdit: () -> Unit) {
-    val interctionSource = remember { MutableInteractionSource() }
+    val interactionSource = remember { MutableInteractionSource() }
     var isCollapsed by remember { mutableStateOf(true) }
     val text = if (isCollapsed) s.lines().first() + "... (see more)" else s
     Text(
@@ -265,7 +263,7 @@ fun Collapsible(s: String, onEdit: () -> Unit) {
                     stiffness = Spring.StiffnessLow
                 )
             ).combinedClickable(
-                interactionSource = interctionSource, indication = null,
+                interactionSource = interactionSource, indication = null,
                 onClick = {
                     isCollapsed = !isCollapsed
                 },

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/ScalableImage.common.kt

@@ -5,7 +5,8 @@ import androidx.compose.foundation.gestures.detectTransformGestures
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.BoxWithConstraintsScope
-import androidx.compose.runtime.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.drawWithContent
 import androidx.compose.ui.geometry.Offset
@@ -44,8 +45,14 @@ fun ScalableImage(scalableState: ScalableState, image: ImageBitmap, modifier: Mo
                     drawIntoCanvas {
                         it.withSave {
                             it.translate(areaCenter.x, areaCenter.y)
-                            it.translate(scalableState.transformation.offset.x, scalableState.transformation.offset.y)
+                            it.translate(
-                            it.scale(scalableState.transformation.scale, scalableState.transformation.scale)
+                                scalableState.transformation.offset.x,
+                                scalableState.transformation.offset.y
+                            )
+                            it.scale(
+                                scalableState.transformation.scale,
+                                scalableState.transformation.scale
+                            )
                             it.translate(-imageCenter.x, -imageCenter.y)
                             drawImage(image)
                         }
@@ -90,4 +97,4 @@ private val ImageBitmap.size get() = Size(width.toFloat(), height.toFloat())
 private val BoxWithConstraintsScope.areaSize
     @Composable get() = with(LocalDensity.current) {
         Size(maxWidth.toPx(), maxHeight.toPx())
-    }
+    }

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/ThumbnailImage.kt

@@ -1,7 +1,12 @@
 package example.imageviewer.view
 
 import androidx.compose.foundation.Image
-import androidx.compose.runtime.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.layout.ContentScale

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/Tooltip.common.kt

@@ -1,7 +1,6 @@
 package example.imageviewer.view
 
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
 
 @Composable
 expect fun Tooltip(

examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/ZoomControllerView.common.kt

@@ -1,6 +1,5 @@
 package example.imageviewer.view
 
-import androidx.compose.foundation.layout.BoxScope
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import example.imageviewer.model.ScalableState

examples/imageviewer/shared/src/desktopMain/kotlin/example/imageviewer/DesktopImageStorage.kt

@@ -2,7 +2,6 @@ package example.imageviewer
 
 import androidx.compose.runtime.snapshots.SnapshotStateList
 import androidx.compose.ui.graphics.ImageBitmap
-import androidx.compose.ui.graphics.asImageBitmap
 import androidx.compose.ui.graphics.toAwtImage
 import androidx.compose.ui.graphics.toComposeImageBitmap
 import example.imageviewer.filter.scaleBitmapAspectRatio

examples/imageviewer/shared/src/desktopMain/kotlin/example/imageviewer/platform.desktop.kt

@@ -7,9 +7,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.unit.dp
-import example.imageviewer.model.PictureData
 import kotlinx.coroutines.Dispatchers
-import java.util.*
+import java.util.UUID
 
 actual fun Modifier.notchPadding(): Modifier = Modifier.padding(top = 12.dp)
 

examples/imageviewer/shared/src/desktopMain/kotlin/example/imageviewer/view/CameraView.desktop.kt

@@ -6,7 +6,6 @@ import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.Button
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember

examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/filter/BitmapFilter.ios.kt

@@ -4,7 +4,16 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.graphics.asComposeImageBitmap
 import androidx.compose.ui.graphics.asSkiaBitmap
-import org.jetbrains.skia.*
+import org.jetbrains.skia.Bitmap
+import org.jetbrains.skia.Canvas
+import org.jetbrains.skia.ColorAlphaType
+import org.jetbrains.skia.ColorInfo
+import org.jetbrains.skia.ColorType
+import org.jetbrains.skia.FilterTileMode
+import org.jetbrains.skia.Image
+import org.jetbrains.skia.ImageFilter
+import org.jetbrains.skia.ImageInfo
+import org.jetbrains.skia.Paint
 
 actual fun grayScaleFilter(bitmap: ImageBitmap, context: PlatformContext): ImageBitmap {
     return applyGrayScaleFilter(bitmap.asSkiaBitmap()).asComposeImageBitmap()

examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/main.ios.kt

@@ -3,6 +3,7 @@ package example.imageviewer
 import androidx.compose.ui.window.ComposeUIViewController
 import platform.UIKit.UIViewController
 
+@Suppress("FunctionName", "unused")
 fun MainViewController(): UIViewController =
     ComposeUIViewController {
         ImageViewerIos()

examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/platform.ios.kt

@@ -15,7 +15,6 @@ import platform.CoreFoundation.CFUUIDCreateString
 import platform.Foundation.CFBridgingRelease
 import platform.UIKit.UIApplication
 import platform.UIKit.UIImage
-import platform.UIKit.safeAreaInsets
 
 private val iosNotchInset = object : WindowInsets {
     override fun getTop(density: Density): Int {

examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/storage/FileExtensions.kt

@@ -3,18 +3,16 @@ package example.imageviewer.storage
 import kotlinx.cinterop.*
 import kotlinx.coroutines.yield
 import platform.Foundation.*
-import platform.UIKit.UIImage
-import platform.UIKit.UIImageJPEGRepresentation
 import platform.posix.memcpy
 
-
+val NSFileManager.DocumentDirectory
-val NSFileManager.DocumentDirectory get() = URLForDirectory(
+    get() = URLForDirectory(
-    directory = NSDocumentDirectory,
+        directory = NSDocumentDirectory,
-    inDomain = NSUserDomainMask,
+        inDomain = NSUserDomainMask,
-    create = true,
+        create = true,
-    appropriateForURL = null,
+        appropriateForURL = null,
-    error = null
+        error = null
-)!!
+    )!!
 
 // Mimic to java's File class
 @Suppress("FunctionName")
@@ -78,5 +76,3 @@ fun NSURL.writeText(text: String) {
         error = null
     )
 }
-
-

examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/storage/IosImageStorage.ios.kt

@@ -2,26 +2,33 @@ package example.imageviewer.storage
 
 import androidx.compose.runtime.snapshots.SnapshotStateList
 import androidx.compose.ui.graphics.ImageBitmap
-import androidx.compose.ui.graphics.toComposeImageBitmap
 import example.imageviewer.ImageStorage
 import example.imageviewer.PlatformStorableImage
 import example.imageviewer.model.PictureData
 import example.imageviewer.toImageBitmap
 import kotlinx.cinterop.CValue
-import kotlinx.cinterop.addressOf
 import kotlinx.cinterop.useContents
-import kotlinx.cinterop.usePinned
+import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.IO
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
-import org.jetbrains.skia.Image
 import platform.CoreGraphics.CGRectMake
 import platform.CoreGraphics.CGSize
 import platform.CoreGraphics.CGSizeMake
-import platform.Foundation.*
+import platform.Foundation.NSBundle
-import platform.UIKit.*
+import platform.Foundation.NSData
-import platform.posix.memcpy
+import platform.Foundation.NSFileManager
+import platform.Foundation.NSURL
+import platform.Foundation.writeToURL
+import platform.UIKit.UIGraphicsBeginImageContextWithOptions
+import platform.UIKit.UIGraphicsEndImageContext
+import platform.UIKit.UIGraphicsGetImageFromCurrentImageContext
+import platform.UIKit.UIImage
+import platform.UIKit.UIImageJPEGRepresentation
 
 private const val maxStorableImageSizePx = 1200
 private const val storableThumbnailSizePx = 180
@@ -31,11 +38,18 @@ class IosImageStorage(
     private val pictures: SnapshotStateList<PictureData>,
     private val ioScope: CoroutineScope
 ) : ImageStorage {
-    private val savePictureDir = File(NSFileManager.defaultManager.DocumentDirectory, "ImageViewer/takenPhotos/")
 
-    private val PictureData.Camera.jpgFile get() = File(savePictureDir, "$id.jpg")
+    private val savePictureDir =
-    private val PictureData.Camera.thumbnailJpgFile get() = File(savePictureDir, "$id-thumbnail.jpg")
+        File(NSFileManager.defaultManager.DocumentDirectory, "ImageViewer/takenPhotos/")
-    private val PictureData.Camera.jsonFile get() = File(savePictureDir, "$id.json")
+
+    private val PictureData.Camera.jpgFile
+        get() = File(savePictureDir, "$id.jpg")
+
+    private val PictureData.Camera.thumbnailJpgFile
+        get() = File(savePictureDir, "$id-thumbnail.jpg")
+
+    private val PictureData.Camera.jsonFile
+        get() = File(savePictureDir, "$id.json")
 
     init {
         if (savePictureDir.isDirectory) {