From e80fb99133a8edf4c0b03319c7296889b0e52d54 Mon Sep 17 00:00:00 2001
From: Miklos Vajna <vmiklos@collabora.com>
Date: Wed, 20 Jan 2021 11:15:34 +0100
Subject: [PATCH] bsc1177955.diff

This is a combination of 2 commits.
This is the 1st commit message:

loplugin:flatten

(cherry picked from commit 2d582244680e7f6dec6e4a466e276f93ccb01dc9)

This is the commit message #2:

oox smartart: composite algo: handle right constraint when left+width is given

The bugdoc had this constraint:

<dgm:constr type="l" for="ch" forName="text" refType="r" refFor="ch" refForName="img"/>

While img has no "r", it has:

<dgm:constr type="w" for="ch" forName="img" refType="w" refFor="ch" refForName="box" fact="0.2"/>
<dgm:constr type="l" for="ch" forName="img" refType="h" refFor="ch" refForName="box" fact="0.1"/>

Which is enough to fix the x position of the text to not overlap with
img.

(cherry picked from commit 1359e8c566970fcef860f7ba7f54a07d8e6e0513)

Change-Id: I80db290bd1695884ffb7b1eabaffa09462e8883d
---
 .../drawingml/diagram/diagramlayoutatoms.cxx  | 78 ++++++++++++++-----
 1 file changed, 60 insertions(+), 18 deletions(-)

Index: libreoffice-7.1.0.3/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
===================================================================
--- libreoffice-7.1.0.3.orig/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
+++ libreoffice-7.1.0.3/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
@@ -784,6 +784,37 @@ sal_Int32 AlgAtom::getVerticalShapesCoun
 namespace
 {
 /**
+ * Decides if a certain reference type (e.g. "right") can be inferred from the available properties
+ * in rMap (e.g. left and width). Returns true if rValue is written to.
+ */
+bool InferFromLayoutProperty(const LayoutProperty& rMap, sal_Int32 nRefType, sal_Int32& rValue)
+{
+    switch (nRefType)
+    {
+        case XML_r:
+        {
+            auto it = rMap.find(XML_l);
+            if (it == rMap.end())
+            {
+                return false;
+            }
+            sal_Int32 nLeft = it->second;
+            it = rMap.find(XML_w);
+            if (it == rMap.end())
+            {
+                return false;
+            }
+            rValue = nLeft + it->second;
+            return true;
+        }
+        default:
+            break;
+    }
+
+    return false;
+}
+
+/**
  * Apply rConstraint to the rProperties shared layout state.
  *
  * Note that the order in which constraints are applied matters, given that constraints can refer to
@@ -803,11 +834,22 @@ void ApplyConstraintToLayout(const Const
         return;
 
     const LayoutProperty::const_iterator aRefType = aRef->second.find(rConstraint.mnRefType);
+    sal_Int32 nInferredValue = 0;
     if (aRefType != aRef->second.end())
+    {
+        // Reference is found directly.
         rProperties[rConstraint.msForName][rConstraint.mnType]
             = aRefType->second * rConstraint.mfFactor;
+    }
+    else if (InferFromLayoutProperty(aRef->second, rConstraint.mnRefType, nInferredValue))
+    {
+        // Reference can be inferred.
+        rProperties[rConstraint.msForName][rConstraint.mnType]
+            = nInferredValue * rConstraint.mfFactor;
+    }
     else
     {
+        // Reference not found, assume a fixed value.
         // Values are never in EMU, while oox::drawingml::Shape position and size are always in
         // EMU.
         double fUnitFactor = 0;