From 50eeb1df7e84a19a792ae240d8d49fefeee28170 Mon Sep 17 00:00:00 2001
From: ed <eddavies95@gmail.com>
Date: Fri, 31 Mar 2017 09:51:39 +0100
Subject: [PATCH] Fixed a bug where ConcertinaPanel::setPanelHeaderSize()
 wouldn't resize the panel header correctly.

---
 modules/juce_gui_basics/layout/juce_ConcertinaPanel.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/modules/juce_gui_basics/layout/juce_ConcertinaPanel.cpp b/modules/juce_gui_basics/layout/juce_ConcertinaPanel.cpp
index a6358cf3f4..9b0a9f9b75 100644
--- a/modules/juce_gui_basics/layout/juce_ConcertinaPanel.cpp
+++ b/modules/juce_gui_basics/layout/juce_ConcertinaPanel.cpp
@@ -349,12 +349,15 @@ void ConcertinaPanel::setMaximumPanelSize (Component* component, int maximumSize
 
 void ConcertinaPanel::setPanelHeaderSize (Component* component, int headerSize)
 {
-    const int index = indexOfComp (component);
+    const auto index = indexOfComp (component);
     jassert (index >= 0); // The specified component doesn't seem to have been added!
 
     if (index >= 0)
     {
-        currentSizes->get(index).minSize = headerSize;
+        auto oldMin = currentSizes->get (index).minSize;
+
+        currentSizes->get (index).minSize = headerSize;
+        currentSizes->get (index).size += headerSize - oldMin;
         resized();
     }
 }