unimore/pm-2024-steffo-twom
unimore/pm-2024-steffo-twom
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Handle ExifInterface.ORIENTATION_TRANSPOSE and ExifInterface.ORIENTATION_TRANSVERSE

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Steffo 2024-01-09 08:49:20 +01:00
parent 1b7705df63
commit 58cb8de3ff
Signed by: steffo
GPG key ID: 2A24051445686895
1 changed files with 16 additions and 3 deletions
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19
app/src/main/java/eu/steffo/twom/create/ImageHandler.kt
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@ -51,7 +51,6 @@ class ImageHandler {
// Create a transformation matrix to rotate the bitmap based on the orientation // Create a transformation matrix to rotate the bitmap based on the orientation
val transformationMatrix = Matrix() val transformationMatrix = Matrix()
// TODO: Make sure all these transformations are valid
when (orientation) { when (orientation) {
ExifInterface.ORIENTATION_FLIP_HORIZONTAL -> { ExifInterface.ORIENTATION_FLIP_HORIZONTAL -> {
transformationMatrix.postScale(-1f, 1f) transformationMatrix.postScale(-1f, 1f)
@ -66,7 +65,14 @@ class ImageHandler {
} }
ExifInterface.ORIENTATION_TRANSPOSE -> { ExifInterface.ORIENTATION_TRANSPOSE -> {
/* TODO: Transpose the image Matrix */ // Untested.
transformationMatrix.setValues(FloatArray(16) {
if (it == 0 || it == 6 || it == 9 || it == 15) {
1f
} else {
0f
}
})
} }
ExifInterface.ORIENTATION_ROTATE_90 -> { ExifInterface.ORIENTATION_ROTATE_90 -> {
@ -74,7 +80,14 @@ class ImageHandler {
} }
ExifInterface.ORIENTATION_TRANSVERSE -> { ExifInterface.ORIENTATION_TRANSVERSE -> {
/* TODO: Flip horizontally the image Matrix, then transpose it */ // Untested.
transformationMatrix.setValues(FloatArray(16) {
if (it == 3 || it == 5 || it == 10 || it == 12) {
1f
} else {
0f
}
})
} }
ExifInterface.ORIENTATION_ROTATE_270 -> { ExifInterface.ORIENTATION_ROTATE_270 -> {