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Merge pull request #427 from ltGuillaume/master 

Lossless rotation for JPEG
This commit is contained in:
Tibor Kaputa 2017-11-01 21:25:19 +01:00 committed by GitHub
parent cb7d9ea108 1cecff008c
commit 0cc2c3d8f1
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 51 additions and 8 deletions
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59
app/src/main/kotlin/com/simplemobiletools/gallery/activities/ViewPagerActivity.kt
View File

@ -45,7 +45,9 @@ import com.simplemobiletools.gallery.helpers.*
import com.simplemobiletools.gallery.models.Medium
import kotlinx.android.synthetic.main.activity_medium.*
import java.io.File
import java.io.OutputStream
import java.io.FileInputStream
import java.io.FileOutputStream
import java.io.FileNotFoundException
import java.util.*
class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, ViewPagerFragment.FragmentListener {
@ -463,7 +465,12 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
return@getFileOutputStream
}
saveFile(tmpFile, bitmap, it)
if (currPath.isJpg()) {
saveRotation(currPath, tmpFile)
} else {
saveFile(tmpFile, bitmap, it as FileOutputStream)
}
if (needsStupidWritePermissions(selectedFile.absolutePath)) {
deleteFile(selectedFile) {}
}
@ -471,6 +478,12 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
renameFile(tmpFile, selectedFile) {
deleteFile(tmpFile) {}
}
it.flush()
it.close()
toast(R.string.file_saved)
mRotationDegrees = 0f
invalidateOptionsMenu()
}
} catch (e: OutOfMemoryError) {
toast(R.string.out_of_memory_error)
@ -483,18 +496,48 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
}
}
private fun saveFile(file: File, bitmap: Bitmap, out: OutputStream) {
private fun saveFile(file: File, bitmap: Bitmap, out: FileOutputStream) {
val matrix = Matrix()
matrix.postRotate(mRotationDegrees)
val bmp = Bitmap.createBitmap(bitmap, 0, 0, bitmap.width, bitmap.height, matrix, true)
bmp.compress(file.getCompressionFormat(), 90, out)
out.flush()
out.close()
toast(R.string.file_saved)
mRotationDegrees = 0f
invalidateOptionsMenu()
}
private fun saveRotation(input: String, out: File) {
var inputStream: FileInputStream? = null
var outputStream: FileOutputStream? = null
try {
inputStream = FileInputStream(input)
outputStream = FileOutputStream(out)
inputStream.copyTo(outputStream)
} catch (ignored: FileNotFoundException) {
} finally {
inputStream?.close()
outputStream?.close()
}
if (out.exists()) {
val exif = ExifInterface(out.absolutePath)
var orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL)
var orientationDegrees = (degreesForRotation(orientation) + mRotationDegrees) % 360
exif.setAttribute(ExifInterface.TAG_ORIENTATION, rotationFromDegrees(orientationDegrees))
exif.saveAttributes()
}
}
private fun degreesForRotation(orientation: Int) = when (orientation) {
ExifInterface.ORIENTATION_ROTATE_270 -> 270f
ExifInterface.ORIENTATION_ROTATE_180 -> 180f
ExifInterface.ORIENTATION_ROTATE_90 -> 90f
else -> 0f
}
private fun rotationFromDegrees(degrees: Float) = when (degrees) {
270f -> ExifInterface.ORIENTATION_ROTATE_270
180f -> ExifInterface.ORIENTATION_ROTATE_180
90f -> ExifInterface.ORIENTATION_ROTATE_90
else -> ExifInterface.ORIENTATION_NORMAL
}.toString()
private fun isShowHiddenFlagNeeded(): Boolean {
val file = File(mPath)
if (file.isHidden)