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Update Messages.kt #541

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Update Messages.kt #541

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96 changes: 64 additions & 32 deletions packages/pdfx/android/src/main/kotlin/io/scer/pdfx/Messages.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,10 @@ import java.io.File
import java.io.FileNotFoundException
import java.io.IOException
import java.lang.RuntimeException
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext

@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
class Messages(private val binding : FlutterPlugin.FlutterPluginBinding,
Expand Down Expand Up @@ -153,43 +157,71 @@ class Messages(private val binding : FlutterPlugin.FlutterPluginBinding,
result: Pigeon.Result<Pigeon.RenderPageReply>
) {
val resultResponse = Pigeon.RenderPageReply()
try {
val pageId = message.pageId!!
val width = message.width!!.toInt()
val height = message.height!!.toInt()
val format = message.format?.toInt() ?: 1 //0 Bitmap.CompressFormat.PNG
val forPrint = message.forPrint ?: false;
val backgroundColor = message.backgroundColor
val color = if (backgroundColor != null) Color.parseColor(backgroundColor) else Color.TRANSPARENT

val crop = message.crop!!
val cropX = if (crop) message.cropX!!.toInt() else 0
val cropY = if (crop) message.cropY!!.toInt() else 0
val cropH = if (crop) message.cropHeight!!.toInt() else 0
val cropW = if (crop) message.cropWidth!!.toInt() else 0
CoroutineScope(Dispatchers.IO).launch {
try {
val pageId = message.pageId ?: run {
result.error(PdfRendererException("pdf_renderer", "Page ID is null", null))
return@launch
}

val quality = message.quality?.toInt() ?: 100
val width = message.width?.toInt() ?: run {
result.error(PdfRendererException("pdf_renderer", "Width is null", null))
return@launch
}

val page = pages.get(pageId)
val height = message.height?.toInt() ?: run {
result.error(PdfRendererException("pdf_renderer", "Height is null", null))
return@launch
}

val tempOutFileExtension = when (format) {
0 -> "jpg"
1 -> "png"
2 -> "webp"
else -> "jpg"
}
val tempOutFolder = File(binding.applicationContext.cacheDir, "pdf_renderer_cache")
tempOutFolder.mkdirs()
val tempOutFile = File(tempOutFolder, "$randomFilename.$tempOutFileExtension")

val pageImage = page.render(tempOutFile, width, height, color, format, crop, cropX, cropY, cropW, cropH, quality, forPrint)
resultResponse.path = pageImage.path
resultResponse.width = pageImage.width.toLong()
resultResponse.height = pageImage.height.toLong()
result.success(resultResponse)
val format = message.format?.toInt() ?: 1
val backgroundColor = message.backgroundColor
val color = backgroundColor?.let { Color.parseColor(it) } ?: Color.TRANSPARENT

} catch (e: Exception) {
result.error(PdfRendererException("pdf_renderer", "Unexpected error", e))
val crop = message.crop ?: false
val cropX = if (crop) message.cropX?.toInt() ?: 0 else 0
val cropY = if (crop) message.cropY?.toInt() ?: 0 else 0
val cropH = if (crop) message.cropHeight?.toInt() ?: 0 else 0
val cropW = if (crop) message.width?.toInt() ?: 0 else 0

val quality = message.quality?.toInt() ?: 100

val page = pages.get(pageId)
if (page == null) {
result.error(PdfRendererException("pdf_renderer", "Page not found for ID: $pageId", null))
return@launch
}

val tempOutFileExtension = when (format) {
0 -> "jpg"
1 -> "png"
2 -> "webp"
else -> "jpg"
}

val tempOutFolder = File(binding.applicationContext.cacheDir, "pdf_renderer_cache").apply {
mkdirs()
}

val tempOutFile = File(tempOutFolder, "$randomFilename.$tempOutFileExtension")

// background thread render
val pageImage = page.render(
tempOutFile, width, height, color, format, crop, cropX, cropY, cropW, cropH, quality
)

withContext(Dispatchers.Main) {
resultResponse.path = pageImage.path
resultResponse.width = pageImage.width.toLong()
resultResponse.height = pageImage.height.toLong()
result.success(resultResponse)
}
} catch (e: Exception) {
withContext(Dispatchers.Main) {
result.error(PdfRendererException("pdf_renderer", "Unexpected error", e))
}
}
}
}

Expand Down