olemd/tilt-shift-camera
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Add real-time tilt-shift preview for gallery images

Browse source 
Gallery imports now show the effect live as you adjust parameters,
matching the camera preview experience. Uses a downscaled (1024px)
source bitmap for fast recomputation via collectLatest, which
cancels stale frames when params change mid-computation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Ole-Morten Duesund 2026-03-05 12:51:26 +01:00
commit 12051b2a83
3 changed files with 77 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

8
app/src/main/java/no/naiv/tiltshift/ui/CameraScreen.kt
View file

@ -106,8 +106,8 @@ fun CameraScreen(
val showControls by viewModel.showControls.collectAsState()
val lastSavedUri by viewModel.lastSavedUri.collectAsState()
val lastThumbnailBitmap by viewModel.lastThumbnailBitmap.collectAsState()
val galleryBitmap by viewModel.galleryBitmap.collectAsState()
val isGalleryPreview = galleryBitmap != null
val galleryPreviewBitmap by viewModel.galleryPreviewBitmap.collectAsState()
val isGalleryPreview = galleryPreviewBitmap != null
val zoomRatio by viewModel.cameraManager.zoomRatio.collectAsState()
val minZoom by viewModel.cameraManager.minZoomRatio.collectAsState()
@ -179,10 +179,10 @@ fun CameraScreen(
) {
// Main view: gallery preview image or camera GL surface
if (isGalleryPreview) {
galleryBitmap?.let { bmp ->
galleryPreviewBitmap?.let { bmp ->
Image(
bitmap = bmp.asImageBitmap(),
contentDescription = "Gallery image preview. Adjust tilt-shift parameters then tap Apply.",
contentDescription = "Gallery image preview with tilt-shift effect. Adjust parameters then tap Apply.",
contentScale = ContentScale.Fit,
modifier = Modifier
.fillMaxSize()