Remove SubsamplingScaleImageView

We have no reason to keep it, just use PhotoView
This commit is contained in:
tarsin committed 2023-02-17 19:03:32 +08:00
1 parent 6b0c208b75
commit 5eda7b3fc3
14 files changed
+7 -3373

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@@ -1,160 +0,0 @@
package com.davemorrissey.labs.subscaleview
import android.content.Context
import android.graphics.Bitmap
import android.graphics.Rect
import android.net.Uri
import com.davemorrissey.labs.subscaleview.provider.AssetInputProvider
import com.davemorrissey.labs.subscaleview.provider.InputProvider
import com.davemorrissey.labs.subscaleview.provider.OpenStreamProvider
import com.davemorrissey.labs.subscaleview.provider.ResourceInputProvider
import com.davemorrissey.labs.subscaleview.provider.UriInputProvider
import java.io.InputStream
/**
* Helper class used to set the source and additional attributes from a variety of sources. Supports
* use of a bitmap, asset, resource, external file or any other URI.
*
*
* When you are using a preview image, you must set the dimensions of the full size image on the
* ImageSource object for the full size image using the [.dimensions] method.
*/
class ImageSource {
val bitmap: Bitmap?
val provider: InputProvider?
private var sWidth = 0
private var sHeight = 0
var sRegion = Rect(0, 0, 0, 0)
private set
var isCached = false
private set
private constructor(bitmap: Bitmap, cached: Boolean) {
this.bitmap = bitmap
provider = null
sWidth = bitmap.width
sHeight = bitmap.height
isCached = cached
}
private constructor(provider: InputProvider) {
bitmap = null
this.provider = provider
}
/**
* Use a region of the source image. Region must be set independently for the full size image and the preview if
* you are using one.
*
* @param sRegion the region of the source image to be displayed.
* @return this instance for chaining.
*/
fun region(sRegion: Rect): ImageSource {
this.sRegion = sRegion
setInvariants()
return this
}
/**
* Declare the dimensions of the image. This is only required for a full size image, when you are specifying a URI
* and also a preview image. When displaying a bitmap object, or not using a preview, you do not need to declare
* the image dimensions. Note if the declared dimensions are found to be incorrect, the view will reset.
*
* @param sWidth width of the source image.
* @param sHeight height of the source image.
* @return this instance for chaining.
*/
fun dimensions(sWidth: Int, sHeight: Int): ImageSource {
if (bitmap == null) {
this.sWidth = sWidth
this.sHeight = sHeight
}
setInvariants()
return this
}
private fun setInvariants() {
if (!sRegion.isEmpty) {
sWidth = sRegion.width()
sHeight = sRegion.height()
}
}
companion object {
/**
* Create an instance from a resource. The correct resource for the device screen resolution will be used.
*
* @param resId resource ID.
* @return an [ImageSource] instance.
*/
@JvmStatic
fun resource(context: Context, resId: Int): ImageSource {
return ImageSource(ResourceInputProvider(context, resId))
}
/**
* Create an instance from an asset name.
*
* @param assetName asset name.
* @return an [ImageSource] instance.
*/
@JvmStatic
fun asset(context: Context, assetName: String): ImageSource {
return ImageSource(AssetInputProvider(context, assetName))
}
/**
* Create an instance from a URI.
*
* @param uri image URI.
* @return an [ImageSource] instance.
*/
fun uri(context: Context, uri: Uri): ImageSource {
return ImageSource(UriInputProvider(context, uri))
}
/**
* Create an instance from an input provider.
*
* @param provider input stream provider.
* @return an [ImageSource] instance.
*/
fun provider(provider: InputProvider): ImageSource {
return ImageSource(provider)
}
/**
* Create an instance from an input stream.
*
* @param stream open input stream.
* @return an [ImageSource] instance.
*/
fun inputStream(stream: InputStream): ImageSource {
return ImageSource(OpenStreamProvider(stream))
}
/**
* Provide a loaded bitmap for display.
*
* @param bitmap bitmap to be displayed.
* @return an [ImageSource] instance.
*/
fun bitmap(bitmap: Bitmap): ImageSource {
return ImageSource(bitmap, false)
}
/**
* Provide a loaded and cached bitmap for display. This bitmap will not be recycled when it is no
* longer needed. Use this method if you loaded the bitmap with an image loader such as Picasso
* or Volley.
*
* @param bitmap bitmap to be displayed.
* @return an [ImageSource] instance.
*/
fun cachedBitmap(bitmap: Bitmap): ImageSource {
return ImageSource(bitmap, true)
}
}
}
@@ -1,15 +0,0 @@
package com.davemorrissey.labs.subscaleview
import android.graphics.PointF
import java.io.Serializable
/**
* Wraps the scale, center and orientation of a displayed image for easy restoration on screen rotate.
*/
class ImageViewState(val scale: Float, center: PointF) : Serializable {
private val centerX: Float = center.x
private val centerY: Float = center.y
val center: PointF
get() = PointF(centerX, centerY)
}
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@@ -1,53 +0,0 @@
package com.davemorrissey.labs.subscaleview.decoder
import android.content.Context
import android.graphics.Bitmap
import android.graphics.Point
import android.graphics.Rect
import kotlin.Throws
import com.davemorrissey.labs.subscaleview.provider.InputProvider
import java.lang.Exception
/**
* Interface for image decoding classes.
*/
interface Decoder {
/**
* Initialise the decoder. When possible, perform initial setup work once in this method. The
* dimensions of the image must be returned.
*
* @param context Application context. A reference may be held, but must be cleared on recycle.
* @param provider Provider of the image.
* @return Dimensions of the image.
* @throws Exception if initialisation fails.
*/
@Throws(Exception::class)
fun init(context: Context, provider: InputProvider): Point
/**
* Decode a region of the image with the given sample size. This method is called off the UI
* thread so it can safely load the image on the current thread. It is called from
* [android.os.AsyncTask]s running in an executor that may have multiple threads, so
* implementations must be thread safe. Adding `synchronized` to the method signature
* is the simplest way to achieve this, but bear in mind the [.recycle] method can be
* called concurrently.
*
* @param sRect Source image rectangle to decode.
* @param sampleSize Sample size.
* @return The decoded region. It is safe to return null if decoding fails.
*/
fun decodeRegion(sRect: Rect, sampleSize: Int): Bitmap
/**
* Status check. Should return false before initialisation and after recycle.
*
* @return true if the decoder is ready to be used.
*/
val isReady: Boolean
/**
* This method will be called when the decoder is no longer required. It should clean up any
* resources still in use.
*/
fun recycle()
}
@@ -1,64 +0,0 @@
package com.davemorrissey.labs.subscaleview.decoder
import android.content.Context
import android.graphics.Bitmap
import android.graphics.Point
import android.graphics.Rect
import kotlin.Throws
import com.davemorrissey.labs.subscaleview.provider.InputProvider
import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
import java.lang.Exception
class ImageDecoder @JvmOverloads constructor(
private val cropBorders: Boolean,
bitmapConfig: Bitmap.Config? = null
) : Decoder {
init {
val globalBitmapConfig = SubsamplingScaleImageView.preferredBitmapConfig
}
/**
* Initialise the decoder. When possible, perform initial setup work once in this method. The
* dimensions of the image must be returned.
*
* @param context Application context. A reference may be held, but must be cleared on recycle.
* @param provider Provider of the image.
* @return Dimensions of the image.
* @throws Exception if initialisation fails.
*/
@Throws(Exception::class)
override fun init(context: Context, provider: InputProvider): Point {
TODO()
}
/**
* Decode a region of the image with the given sample size. This method is called off the UI
* thread so it can safely load the image on the current thread. It is called from
* [android.os.AsyncTask]s running in an executor that may have multiple threads, so
* implementations must be thread safe. Adding `synchronized` to the method signature
* is the simplest way to achieve this, but bear in mind the [.recycle] method can be
* called concurrently.
*
* @param sRect Source image rectangle to decode.
* @param sampleSize Sample size.
* @return The decoded region. It is safe to return null if decoding fails.
*/
override fun decodeRegion(sRect: Rect, sampleSize: Int): Bitmap {
TODO()
}
/**
* Status check. Should return false before initialisation and after recycle.
*
* @return true if the decoder is ready to be used.
*/
override val isReady: Boolean = TODO()
/**
* This method will be called when the decoder is no longer required. It should clean up any
* resources still in use.
*/
override fun recycle() {
TODO()
}
}
@@ -1,11 +0,0 @@
package com.davemorrissey.labs.subscaleview.provider
import android.content.Context
import java.io.IOException
class AssetInputProvider(context: Context, val assetName: String) : InputProvider {
private val assets = context.assets
@Throws(IOException::class)
override fun openStream() = assets.open(assetName)
}
@@ -1,10 +0,0 @@
package com.davemorrissey.labs.subscaleview.provider
import java.io.IOException
import java.io.InputStream
import kotlin.Throws
interface InputProvider {
@Throws(IOException::class)
fun openStream(): InputStream?
}
@@ -1,16 +0,0 @@
package com.davemorrissey.labs.subscaleview.provider
import java.io.IOException
import java.io.InputStream
import kotlin.Throws
/**
* Provider from an already open input stream.
*
*
* Please keep in mind this provider is not reusable.
*/
class OpenStreamProvider(private val stream: InputStream) : InputProvider {
@Throws(IOException::class)
override fun openStream() = stream
}
@@ -1,11 +0,0 @@
package com.davemorrissey.labs.subscaleview.provider
import android.content.Context
import java.io.IOException
class ResourceInputProvider(context: Context, val resource: Int) : InputProvider {
private val resources = context.resources
@Throws(IOException::class)
override fun openStream() = resources.openRawResource(resource)
}
@@ -1,13 +0,0 @@
package com.davemorrissey.labs.subscaleview.provider
import android.content.Context
import android.net.Uri
import java.io.IOException
import kotlin.Throws
class UriInputProvider(context: Context, val uri: Uri) : InputProvider {
private val resolver = context.contentResolver
@Throws(IOException::class)
override fun openStream() = resolver.openInputStream(uri)
}