From 02e009054d921cb23e2d95ebca5cabc74b958fb9 Mon Sep 17 00:00:00 2001
From: faiface <faiface@ksp.sk>
Date: Tue, 11 Apr 2017 16:45:56 +0200
Subject: [PATCH] move ComposeTarget to separate file

---
 compose.go   | 28 ++++++++++++++++++++++++++++
 interface.go | 27 ---------------------------
 2 files changed, 28 insertions(+), 27 deletions(-)
 create mode 100644 compose.go

diff --git a/compose.go b/compose.go
new file mode 100644
index 0000000..e64e439
--- /dev/null
+++ b/compose.go
@@ -0,0 +1,28 @@
+package pixel
+
+// ComposeTarget is a BasicTarget capable of Porter-Duff composition.
+type ComposeTarget interface {
+	BasicTarget
+
+	// SetComposeMethod sets a Porter-Duff composition method to be used.
+	SetComposeMethod(ComposeMethod)
+}
+
+// ComposeMethod is a Porter-Duff composition method.
+type ComposeMethod int
+
+// Here's the list of all available Porter-Duff composition methods. User ComposeOver for the basic
+// alpha blending.
+const (
+	ComposeOver ComposeMethod = iota
+	ComposeIn
+	ComposeOut
+	ComposeAtop
+	ComposeRover
+	ComposeRin
+	ComposeRout
+	ComposeRatop
+	ComposeXor
+	ComposePlus
+	ComposeCopy
+)
diff --git a/interface.go b/interface.go
index c5cb597..9aa5f2e 100644
--- a/interface.go
+++ b/interface.go
@@ -38,33 +38,6 @@ type BasicTarget interface {
 	SetColorMask(color.Color)
 }
 
-// ComposeTarget is a BasicTarget capable of Porter-Duff composition.
-type ComposeTarget interface {
-	BasicTarget
-
-	// SetComposeMethod sets a Porter-Duff composition method to be used.
-	SetComposeMethod(ComposeMethod)
-}
-
-// ComposeMethod is a Porter-Duff composition method.
-type ComposeMethod int
-
-// Here's the list of all available Porter-Duff composition methods. User ComposeOver for the basic
-// alpha blending.
-const (
-	ComposeOver ComposeMethod = iota
-	ComposeIn
-	ComposeOut
-	ComposeAtop
-	ComposeRover
-	ComposeRin
-	ComposeRout
-	ComposeRatop
-	ComposeXor
-	ComposePlus
-	ComposeCopy
-)
-
 // Triangles represents a list of vertices, where each three vertices form a triangle. (First,
 // second and third is the first triangle, fourth, fifth and sixth is the second triangle, etc.)
 type Triangles interface {