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Feat: [:core:ui] - Migrated to KMP (#2749)
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core/ui/src/androidMain/kotlin/org/mifos/mobile/core/ui/utils/ImageUtil.android.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| /* | ||
| * Copyright 2025 Mifos Initiative | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at https://mozilla.org/MPL/2.0/. | ||
| * | ||
| * See https://github.com/openMF/mobile-mobile/blob/master/LICENSE.md | ||
| */ | ||
| package org.mifos.mobile.core.ui.utils | ||
|
|
||
| import android.graphics.Bitmap | ||
| import android.graphics.BitmapFactory | ||
| import android.graphics.Canvas | ||
| import android.graphics.Matrix | ||
| import android.graphics.Paint | ||
| import android.util.Log | ||
| import java.io.ByteArrayOutputStream | ||
|
|
||
| actual object ImageUtil { | ||
| actual val DEFAULT_MAX_WIDTH: Float = 816f | ||
| actual val DEFAULT_MAX_HEIGHT: Float = 612f | ||
|
|
||
| actual fun compressImage( | ||
| decodedBytes: ByteArray, | ||
| maxWidth: Float, | ||
| maxHeight: Float, | ||
| ): ByteArray { | ||
| val options = BitmapFactory.Options().apply { | ||
| inJustDecodeBounds = true | ||
| } | ||
|
|
||
| BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.size, options) | ||
|
|
||
| val (actualWidth, actualHeight) = calculateActualDimensions(options, maxWidth, maxHeight) | ||
|
|
||
| options.apply { | ||
| inJustDecodeBounds = false | ||
| inSampleSize = calculateInSampleSize(this, actualWidth, actualHeight) | ||
| inTempStorage = ByteArray(16 * 1024) | ||
| } | ||
|
|
||
| val bmp = try { | ||
| BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.size, options) | ||
| } catch (e: OutOfMemoryError) { | ||
| Log.e(this::class.java.simpleName, "OutOfMemoryError while decoding bitmap", e) | ||
| return ByteArray(0) | ||
| } | ||
|
|
||
| val scaledBitmap = try { | ||
| createScaledBitmap(bmp, actualWidth, actualHeight, options) | ||
| } catch (e: OutOfMemoryError) { | ||
| Log.e(this::class.java.simpleName, "OutOfMemoryError while scaling bitmap", e) | ||
| bmp | ||
| } | ||
|
|
||
| val byteArrayOutputStream = ByteArrayOutputStream() | ||
| scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 85, byteArrayOutputStream) | ||
| return byteArrayOutputStream.toByteArray() | ||
| } | ||
|
|
||
| private fun calculateActualDimensions( | ||
| options: BitmapFactory.Options, | ||
| maxWidth: Float, | ||
| maxHeight: Float, | ||
| ): Pair<Int, Int> { | ||
| var actualWidth = options.outWidth | ||
| var actualHeight = options.outHeight | ||
| val imgRatio = actualWidth.toFloat() / actualHeight | ||
| val maxRatio = maxWidth / maxHeight | ||
|
|
||
| if (actualHeight > maxHeight || actualWidth > maxWidth) { | ||
| when { | ||
| imgRatio < maxRatio -> { | ||
| actualHeight = maxHeight.toInt() | ||
| actualWidth = (maxHeight * imgRatio).toInt() | ||
| } | ||
|
|
||
| imgRatio > maxRatio -> { | ||
| actualWidth = maxWidth.toInt() | ||
| actualHeight = (maxWidth / imgRatio).toInt() | ||
| } | ||
|
|
||
| else -> { | ||
| actualHeight = maxHeight.toInt() | ||
| actualWidth = maxWidth.toInt() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return Pair(actualWidth, actualHeight) | ||
| } | ||
|
|
||
| private fun calculateInSampleSize( | ||
| options: BitmapFactory.Options, | ||
| reqWidth: Int, | ||
| reqHeight: Int, | ||
| ): Int { | ||
| val (height, width) = options.run { outHeight to outWidth } | ||
| var inSampleSize = 1 | ||
|
|
||
| if (height > reqHeight || width > reqWidth) { | ||
| val halfHeight = height / 2 | ||
| val halfWidth = width / 2 | ||
|
|
||
| while (halfHeight / inSampleSize >= reqHeight && halfWidth / inSampleSize >= reqWidth) { | ||
| inSampleSize *= 2 | ||
| } | ||
| } | ||
|
|
||
| return inSampleSize | ||
| } | ||
|
|
||
| private fun createScaledBitmap( | ||
| bmp: Bitmap, | ||
| actualWidth: Int, | ||
| actualHeight: Int, | ||
| options: BitmapFactory.Options, | ||
| ): Bitmap { | ||
| val scaledBitmap = Bitmap.createBitmap(actualWidth, actualHeight, Bitmap.Config.ARGB_8888) | ||
| val ratioX = actualWidth / options.outWidth.toFloat() | ||
| val ratioY = actualHeight / options.outHeight.toFloat() | ||
| val middleX = actualWidth / 2f | ||
| val middleY = actualHeight / 2f | ||
|
|
||
| val scaleMatrix = Matrix().apply { | ||
| setScale(ratioX, ratioY, middleX, middleY) | ||
| } | ||
|
|
||
| Canvas(scaledBitmap).apply { | ||
| setMatrix(scaleMatrix) | ||
| drawBitmap( | ||
| bmp, | ||
| middleX - bmp.width / 2, | ||
| middleY - bmp.height / 2, | ||
| Paint(Paint.FILTER_BITMAP_FLAG), | ||
| ) | ||
| } | ||
|
|
||
| return scaledBitmap | ||
| } | ||
| } |
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core/ui/src/commonMain/composeResources/drawable/core_ui_money_in.png
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