解决合并冲突，保留本地功能

2026-03-05 20:59:13 +08:00
parent 6b051846fc 44fe4d963c
commit 65adbee8b8
3 changed files with 83 additions and 69 deletions
--- a/app/src/main/java/com/inspection/camera/util/PuzzleMerge.kt
+++ b/app/src/main/java/com/inspection/camera/util/PuzzleMerge.kt
@@ -0,0 +1,59 @@
+package com.inspection.camera.util
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.graphics.Canvas
+import android.graphics.Paint
+import android.graphics.Rect
+import android.net.Uri
+
+object PuzzleMerge {
+    // Merge up to 4 images into a single 2x2 bitmap
+    fun mergeToBitmap(context: Context, imageUris: List<Uri>, targetSize: Int = 1000): Bitmap? {
+        if (imageUris.isEmpty()) return null
+        val size = targetSize
+        val half = size / 2
+        val merged = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888)
+        val canvas = Canvas(merged)
+        val paint = Paint(Paint.ANTI_ALIAS_FLAG)
+
+        val targets = arrayOf(
+            Rect(0, 0, half, half),        // TL
+            Rect(half, 0, size, half),     // TR
+            Rect(0, half, half, size),     // BL
+            Rect(half, half, size, size)    // BR
+        )
+
+        val toUse = imageUris.take(4)
+        for (i in toUse.indices) {
+            val bmp = loadBitmap(context, toUse[i], half, half)
+            if (bmp != null) {
+                val scaled = Bitmap.createScaledBitmap(bmp, half, half, true)
+                canvas.drawBitmap(scaled, null, targets[i], paint)
+                bmp.recycle()
+                scaled.recycle()
+            }
+        }
+
+        // Optional: fill empty cells with placeholder color if needed
+        return merged
+    }
+
+    // Load bitmap from URI with sampling to fit within maxW x maxH
+    private fun loadBitmap(context: Context, uri: Uri, maxW: Int, maxH: Int): Bitmap? {
+        return try {
+            val opts = BitmapFactory.Options().apply { inJustDecodeBounds = true }
+            context.contentResolver.openInputStream(uri).use { ins ->
+                BitmapFactory.decodeStream(ins, null, opts)
+            }
+            val inSample = maxOf(1, max(opts.outWidth / maxW, opts.outHeight / maxH))
+            val opts2 = BitmapFactory.Options().apply { inSampleSize = inSample }
+            context.contentResolver.openInputStream(uri).use { ins ->
+                BitmapFactory.decodeStream(ins, null, opts2)
+            }
+        } catch (e: Exception) {
+            null
+        }
+    }
+}