[F] Scaling

android/app/src/main/java/aza/instant/MainActivity.kt

@@ -44,6 +44,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.core.content.ContextCompat
+import androidx.core.graphics.withTranslation
 import androidx.work.OneTimeWorkRequestBuilder
 import androidx.work.WorkManager
 import androidx.work.workDataOf
@@ -165,7 +166,19 @@ fun FileListerScreen(modifier: Modifier = Modifier, sharedImageUri: Uri?, onShar
         Column(modifier = Modifier.weight(1f), horizontalAlignment = Alignment.CenterHorizontally) {
             picture?.let { p ->
                 Canvas(modifier = Modifier.fillMaxWidth().weight(1f).drawWithCache {
-                    onDrawWithContent{ drawIntoCanvas { it.nativeCanvas.drawPicture(p) } }
+                    onDrawWithContent {
+                        drawIntoCanvas { canvas ->
+                            if (!(p.width > 0 && p.height > 0)) return@onDrawWithContent
+                            val scale = minOf(size.width / p.width, size.height / p.height)
+                            val dx = (size.width - p.width * scale) / 2
+                            val dy = (size.height - p.height * scale) / 2
+
+                            canvas.nativeCanvas.withTranslation(dx, dy) {
+                                scale(scale, scale)
+                                drawPicture(p)
+                            }
+                        }
+                    }
                 }) {}
             }
 

android/app/src/main/java/aza/instant/SvgUtil.kt

@@ -62,7 +62,7 @@ class FontResolver(private val context: Context) : SVGExternalFileResolver() {
 
 fun renderSvgAndroid(context: Context, svg: String): Picture? {
     SVG.registerExternalFileResolver(FontResolver(context))
-    return SVG.getFromString(svg).renderToPicture(7133 / 2, 4904 / 2)
+    return SVG.getFromString(svg).renderToPicture(7133, 4904)
 }
 
 fun renderSvgBytes(context: Context, svg: String, exif: ExifResult) = renderSvgAndroid(context, svg)?.run {