Add more gif support functions in ActorView

src/main/java/com/bomostory/sceneeditmodule/screen/view/ActorView.kt

@@ -2,12 +2,14 @@ package com.bomostory.sceneeditmodule.screen.view
 
 import android.content.Context
 import android.graphics.*
+import android.graphics.drawable.BitmapDrawable
 import android.graphics.drawable.Drawable
 import android.util.AttributeSet
 import android.widget.ImageView
 import com.bomostory.sceneeditmodule.DialogueDrawer
 import com.bomostory.sceneeditmodule.basicdata.Actor
 import pl.droidsonroids.gif.GifDrawable
+import kotlin.math.max
 
 class ActorView : ImageView {
 
@@ -45,4 +47,43 @@ class ActorView : ImageView {
             }
         }
     }
+
+    fun GifDrawable.getBitmapAt(milliseconds: Int): Bitmap = seekToPositionAndGet(if (loopCount == 0 || milliseconds < duration * loopCount) max(0, milliseconds % duration) else (duration))
+
+    fun isGif(): Boolean {
+        return drawable is GifDrawable
+    }
+
+    fun isGifPlaying(): Boolean {
+        if (drawable is GifDrawable) {
+            val gifDrawable = drawable as GifDrawable
+            return gifDrawable.isPlaying
+        }
+        return false
+    }
+
+    fun startGifAnimation() {
+        if (drawable is GifDrawable) {
+            val gifDrawable = drawable as GifDrawable
+            gifDrawable.start()
+        }
+    }
+
+    fun stopGifAnimation() {
+        if (drawable is GifDrawable) {
+            val gifDrawable = drawable as GifDrawable
+            gifDrawable.stop()
+        }
+    }
+
+    fun getBitmapAt(milliseconds: Int): Bitmap? {
+        if (drawable is GifDrawable) {
+            val gifDrawable = drawable as GifDrawable
+            return gifDrawable.seekToPositionAndGet(milliseconds)
+        } else if (drawable is BitmapDrawable) {
+            val bitmapDrawable = drawable as BitmapDrawable
+            return bitmapDrawable.bitmap
+        }
+        return null
+    }
 }