archive-97f2350/app/src/main/java/uk/orllewin/sianel/ui/components/upload/ThumbnailStrip.kt 2.7 KB
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package uk.orllewin.sianel.ui.components.upload

import android.graphics.Bitmap
import androidx.compose.foundation.Image
import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.lazy.LazyRow
import androidx.compose.foundation.lazy.itemsIndexed
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.asImageBitmap
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.unit.dp

@Composable
fun ThumbnailStrip(
    thumbnails: List<Bitmap>,
    selected: Int,
    onSelect: (Int) -> Unit,
) {
    if (thumbnails.isEmpty()) {
        Row(
            modifier = Modifier
                .fillMaxWidth()
                .height(64.dp)
                .background(MaterialTheme.colorScheme.surfaceVariant),
        ) {}
        return
    }
    Column(Modifier.fillMaxWidth()) {
        Text(
            "Thumbnail",
            style = MaterialTheme.typography.labelLarge,
            modifier = Modifier.padding(bottom = 4.dp),
        )
        LazyRow(horizontalArrangement = Arrangement.spacedBy(4.dp)) {
            itemsIndexed(thumbnails) { index, bitmap ->
                val isSelected = index == selected
                val borderColor = if (isSelected) {
                    MaterialTheme.colorScheme.primary
                } else {
                    Color.Transparent
                }
                Image(
                    bitmap = bitmap.asImageBitmap(),
                    contentDescription = "Frame ${index + 1}",
                    contentScale = ContentScale.Crop,
                    modifier = Modifier
                        .size(width = 80.dp, height = 56.dp)
                        .clip(RoundedCornerShape(6.dp))
                        .border(
                            width = if (isSelected) 3.dp else 1.dp,
                            color = borderColor,
                            shape = RoundedCornerShape(6.dp),
                        )
                        .clickable { onSelect(index) },
                )
            }
        }
    }
}