From 5cc9e724582ac4e302fad76d380c397ddeb27876 Mon Sep 17 00:00:00 2001
From: OszkarSemerath <oszkar.semerath@gmail.com>
Date: Thu, 1 Feb 2018 14:28:01 +0100
Subject: Type coloring

---
 .../application/ui/highlight/ColorCalculator.xtend | 38 ++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Application/hu.bme.mit.inf.dslreasoner.application.ui/src/hu/bme/mit/inf/dslreasoner/application/ui/highlight/ColorCalculator.xtend

(limited to 'Application/hu.bme.mit.inf.dslreasoner.application.ui/src/hu/bme/mit/inf/dslreasoner/application/ui/highlight/ColorCalculator.xtend')

diff --git a/Application/hu.bme.mit.inf.dslreasoner.application.ui/src/hu/bme/mit/inf/dslreasoner/application/ui/highlight/ColorCalculator.xtend b/Application/hu.bme.mit.inf.dslreasoner.application.ui/src/hu/bme/mit/inf/dslreasoner/application/ui/highlight/ColorCalculator.xtend
new file mode 100644
index 00000000..d0f9db88
--- /dev/null
+++ b/Application/hu.bme.mit.inf.dslreasoner.application.ui/src/hu/bme/mit/inf/dslreasoner/application/ui/highlight/ColorCalculator.xtend
@@ -0,0 +1,38 @@
+package hu.bme.mit.inf.dslreasoner.application.ui.highlight
+
+import java.util.List
+import java.util.Random
+import org.eclipse.emf.ecore.EClass
+import org.eclipse.emf.ecore.EEnum
+
+class ColorCalculator {
+	
+	public def dispatch getColor(EClass c) {
+		val supertypes = (c.getEAllSuperTypes + #[c])
+		val typeHashcodes = supertypes.map[(c.getEPackage.nsURI->c.name).hashCode]
+		return randomColor(typeHashcodes)
+	}
+	public def dispatch getColor(EEnum e) {
+		return randomColor((e.getEPackage.nsURI->e.name).hashCode)
+	}
+	
+	protected def randomColor(Integer seed) {
+		val Random random = new Random(seed)
+		val rangePicker = [|random.nextInt(128)+128]
+		return #[rangePicker.apply(), rangePicker.apply(), rangePicker.apply()]
+	}
+	protected def randomColor(Iterable<Integer> seeds) { seeds.map[randomColor].averageColor }
+	private def averageColor(Iterable<List<Integer>> colors) {
+		if(colors.empty) {
+			return #[256,256,256]
+		} else {
+			return #[
+				colors.map[get(0)].average,
+				colors.map[get(1)].average,
+				colors.map[get(2)].average
+			]
+		}
+	}
+	private def average(Iterable<Integer> doubles) { return doubles.reduce[p1, p2|p1+p2]/doubles.size }
+}
+
-- 
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