From 5bfcf23fbf62709e03eb65c6a10e6ea10abf4793 Mon Sep 17 00:00:00 2001
From: soywiz <soywiz@gmail.com>
Date: Thu, 4 Mar 2021 11:24:59 +0100
Subject: [PATCH] Sync from next

---
 gradle.properties                             |  4 +--
 .../kotlin/com/soywiz/korim/atlas/Atlas.kt    |  6 ++++-
 .../com/soywiz/korim/bitmap/BitmapSlice.kt    | 25 ++++++++++++++++---
 3 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/gradle.properties b/gradle.properties
index 222ed16..17a465f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,8 +9,8 @@ group=com.soywiz.korlibs.korim
 version=2.0.0-SNAPSHOT
 
 # kotlinx
-korioVersion=2.0.8
-kormaVersion=2.0.7
+korioVersion=2.0.9
+kormaVersion=2.0.8
 
 # bintray location
 project.bintray.org=korlibs
diff --git a/korim/src/commonMain/kotlin/com/soywiz/korim/atlas/Atlas.kt b/korim/src/commonMain/kotlin/com/soywiz/korim/atlas/Atlas.kt
index 605c6d7..6420740 100644
--- a/korim/src/commonMain/kotlin/com/soywiz/korim/atlas/Atlas.kt
+++ b/korim/src/commonMain/kotlin/com/soywiz/korim/atlas/Atlas.kt
@@ -3,6 +3,7 @@ package com.soywiz.korim.atlas
 import com.soywiz.korim.bitmap.*
 import com.soywiz.korim.format.*
 import com.soywiz.korio.file.*
+import com.soywiz.korma.geom.RectangleInt
 
 class Atlas(val textures: Map<String, BitmapSlice<Bitmap>>, val info: AtlasInfo = AtlasInfo()) {
     constructor(texture: BitmapSlice<Bitmap>, info: AtlasInfo = AtlasInfo()) : this(mapOf(info.pages.first().fileName to texture), info)
@@ -14,7 +15,10 @@ class Atlas(val textures: Map<String, BitmapSlice<Bitmap>>, val info: AtlasInfo
         val texture = textures[page.fileName]
             ?: error("Can't find '${page.fileName}' in ${textures.keys}")
         val slice = texture.slice(info.frame.rect).let {
-            BitmapSlice(it.bmpBase, it.bounds, info.name, info.rotated)
+            // Define virtual frame with offsets "info.spriteSourceSize.x" and "info.spriteSourceSize.y"
+            // and original texture size "info.sourceSize.width" and "info.sourceSize.height"
+            BitmapSlice(it.bmpBase, it.bounds, info.name, info.rotated,
+                virtFrame = if (info.trimmed) RectangleInt(info.spriteSourceSize.x, info.spriteSourceSize.y, info.sourceSize.width, info.sourceSize.height) else null)
         }
         val name get() = info.name
         // @TODO: Use name instead
diff --git a/korim/src/commonMain/kotlin/com/soywiz/korim/bitmap/BitmapSlice.kt b/korim/src/commonMain/kotlin/com/soywiz/korim/bitmap/BitmapSlice.kt
index c5e27da..a2fce89 100644
--- a/korim/src/commonMain/kotlin/com/soywiz/korim/bitmap/BitmapSlice.kt
+++ b/korim/src/commonMain/kotlin/com/soywiz/korim/bitmap/BitmapSlice.kt
@@ -5,11 +5,18 @@ import com.soywiz.kmem.*
 import com.soywiz.korio.resources.*
 import com.soywiz.korma.geom.*
 
+/**
+ * @property virtFrame This defines a virtual frame [RectangleInt] which surrounds the bounds [RectangleInt] of the [Bitmap].
+ *                     It is used in a trimmed texture atlas to specify the original size of a single texture.
+ *                     X and y of virtFrame is the offset of the virtual frame to the top left edge of
+ *                     the bounds rectangle. Width and height defines the size of the virtual frame.
+ */
 abstract class BmpSlice(
     val bmpBase: Bitmap,
     val bounds: RectangleInt,
     val name: String? = null,
-    val rotated: Boolean = false
+    val rotated: Boolean = false,
+    val virtFrame: RectangleInt? = null
 ) : Extra, Resourceable<BmpSlice> {
     override fun getOrNull() = this
     override suspend fun get() = this
@@ -37,6 +44,12 @@ abstract class BmpSlice(
     val right get() = bounds.right
     val bottom get() = bounds.bottom
 
+    val trimmed: Boolean = virtFrame != null
+    val frameOffsetX: Int = virtFrame?.x ?: 0
+    val frameOffsetY: Int = virtFrame?.y ?: 0
+    val frameWidth: Int = virtFrame?.width ?: bounds.width
+    val frameHeight : Int = virtFrame?.height ?: bounds.height
+
 	var parent: Any? = null
 
     val tl_x = p0.x.toFloat()
@@ -61,7 +74,13 @@ fun BmpSlice.getIntBounds(out: RectangleInt = RectangleInt()) = out.setTo(left,
 
 fun BmpSlice.extract(): Bitmap = bmpBase.extract(left, top, width, height)
 
-class BitmapSlice<out T : Bitmap>(override val bmp: T, bounds: RectangleInt, name: String? = null, rotated: Boolean = false) : BmpSlice(bmp, bounds, name, rotated), Extra by Extra.Mixin() {
+class BitmapSlice<out T : Bitmap>(
+    override val bmp: T,
+    bounds: RectangleInt,
+    name: String? = null,
+    rotated: Boolean = false,
+    virtFrame: RectangleInt? = null
+) : BmpSlice(bmp, bounds, name, rotated, virtFrame), Extra by Extra.Mixin() {
 	val premultiplied get() = bmp.premultiplied
 
 	fun extract(): T = bmp.extract(bounds.x, bounds.y, bounds.width, bounds.height)
@@ -86,7 +105,7 @@ class BitmapSlice<out T : Bitmap>(override val bmp: T, bounds: RectangleInt, nam
         }
     }
 
-    fun withName(name: String? = null)  = BitmapSlice<T>(bmp, bounds, name, rotated)
+    fun withName(name: String? = null)  = BitmapSlice<T>(bmp, bounds, name, rotated, virtFrame)
 
 	override fun toString(): String = "BitmapSlice($name:${SizeInt(bounds.width, bounds.height)})"
 }