From bf0331c3f3096b0902024728fe52dde83dfe5fcb Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Fri, 16 Feb 2018 14:58:16 +0100
Subject: dbmodel: unknot arrows

---
 dbmodel/pfeile-entwirren.patch | 53 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 dbmodel/pfeile-entwirren.patch

(limited to 'dbmodel/pfeile-entwirren.patch')

diff --git a/dbmodel/pfeile-entwirren.patch b/dbmodel/pfeile-entwirren.patch
new file mode 100644
index 00000000..977b0ad1
--- /dev/null
+++ b/dbmodel/pfeile-entwirren.patch
@@ -0,0 +1,53 @@
+diff --git a/src/boxsidehub.cpp b/src/boxsidehub.cpp
+index 4dfb460..b4cbf0d 100644
+--- a/src/boxsidehub.cpp
++++ b/src/boxsidehub.cpp
+@@ -51,10 +51,15 @@ static bool
+ itemLessThan(const ConnectorRealPair &a, const ConnectorRealPair &b)
+ {
+ 	int r = cmpAngle(a.second, b.second);
+-	if (r == 0) {
++	if (r != 0)
++		return r < 0;
++	r = a.first->isStart() - b.first->isStart();
++	if (r != 0)
++		return r > 0;
++	if (a.first->isStart())
+ 		return a.first->owner() < b.first->owner();
+-	}
+-	return r < 0;
++	else
++		return a.first->owner() > b.first->owner();
+ }
+ 
+ //              |
+diff --git a/src/connector.cpp b/src/connector.cpp
+index bbd7580..bf85ed0 100644
+--- a/src/connector.cpp
++++ b/src/connector.cpp
+@@ -82,6 +82,12 @@ Connector::isConnected() const
+ 	return m_hub;
+ }
+ 
++bool
++Connector::isStart()
++{
++	return this==owner()->connector(0);
++}
++
+ DiagramObject *
+ Connector::connectedObject() const
+ {
+diff --git a/src/connector.h b/src/connector.h
+index 66e2b1a..ee2ecb6 100644
+--- a/src/connector.h
++++ b/src/connector.h
+@@ -37,6 +37,8 @@ public:
+ 	bool isConnected() const;
+ 	DiagramObject *connectedObject() const;
+ 
++	bool isStart();
++
+ 	Connector *otherEnd() const;
+ 	
+ 	Hub *hub() const;
-- 
cgit v1.2.3-54-g00ecf