From 0a4a162cf4f64bdb6ab76697cfe2197d7462b5f1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaakko=20Ker=C3=A4nen?= <jaakko.keranen@iki.fi>
Date: Fri, 28 Feb 2014 21:03:56 +0200
Subject: [PATCH] libdeng2|RuleRectangle: Added midX/midY output rules

---
 .../libdeng2/include/de/widgets/rulerectangle.h |  2 ++
 doomsday/libdeng2/src/widgets/rulerectangle.cpp | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/doomsday/libdeng2/include/de/widgets/rulerectangle.h b/doomsday/libdeng2/include/de/widgets/rulerectangle.h
index 433248798c..fe4b683b79 100644
--- a/doomsday/libdeng2/include/de/widgets/rulerectangle.h
+++ b/doomsday/libdeng2/include/de/widgets/rulerectangle.h
@@ -54,6 +54,8 @@ class DENG2_PUBLIC RuleRectangle
     Rule const &bottom() const;
     Rule const &width() const;
     Rule const &height() const;
+    Rule const &midX() const;
+    Rule const &midY() const;
 
     /**
      * Sets one of the input rules of the rectangle.
diff --git a/doomsday/libdeng2/src/widgets/rulerectangle.cpp b/doomsday/libdeng2/src/widgets/rulerectangle.cpp
index 21379dc52f..859b7a8dfd 100644
--- a/doomsday/libdeng2/src/widgets/rulerectangle.cpp
+++ b/doomsday/libdeng2/src/widgets/rulerectangle.cpp
@@ -47,6 +47,8 @@ DENG2_PIMPL(RuleRectangle)
 
     // The output rules.
     IndirectRule *outputRules[MAX_OUTPUT_RULES];
+    Rule *midX;
+    Rule *midY;
 
     Instance(Public *i) : Base(i)
     {
@@ -61,11 +63,16 @@ DENG2_PIMPL(RuleRectangle)
             outputRules[i] = new IndirectRule;
         }
 
+        midX = holdRef(*outputRules[OutLeft] + *outputRules[OutWidth]  / 2);
+        midY = holdRef(*outputRules[OutTop]  + *outputRules[OutHeight] / 2);
+
         debugName = QString("0x%1").arg(dintptr(thisPublic), 0, 16);
     }
 
     ~Instance()
     {
+        releaseRef(midX);
+        releaseRef(midY);
         releaseRef(normalizedAnchorX);
         releaseRef(normalizedAnchorY);
 
@@ -241,6 +248,16 @@ Rule const &RuleRectangle::height() const
     return *d->outputRules[Instance::OutHeight];
 }
 
+Rule const &RuleRectangle::midX() const
+{
+    return *d->midX;
+}
+
+Rule const &RuleRectangle::midY() const
+{
+    return *d->midY;
+}
+
 RuleRectangle &RuleRectangle::setInput(Rule::Semantic inputRule, Rule const &rule)
 {
     d->setInputRule(inputRule, rule);