From d0cca0c16a505362714b03f47bbe43b23beb69cd Mon Sep 17 00:00:00 2001
From: David Capello <davidcapello@gmail.com>
Date: Wed, 19 Aug 2015 14:25:57 -0300
Subject: [PATCH] We do have to share AppRender between editors

In this way the preview image is visualized in multiple editors for
the same sprite.
---
 src/app/ui/editor/editor.cpp | 3 +++
 src/app/ui/editor/editor.h   | 7 ++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/app/ui/editor/editor.cpp b/src/app/ui/editor/editor.cpp
index a61b3d0b9..a6cab19e5 100644
--- a/src/app/ui/editor/editor.cpp
+++ b/src/app/ui/editor/editor.cpp
@@ -139,6 +139,9 @@ private:
 // static
 doc::ImageBufferPtr Editor::m_renderBuffer;
 
+// static
+AppRender Editor::m_renderEngine;
+
 Editor::Editor(Document* document, EditorFlags flags)
   : Widget(editor_type())
   , m_state(new StandbyState())
diff --git a/src/app/ui/editor/editor.h b/src/app/ui/editor/editor.h
index 73c00565e..4a37cfc36 100644
--- a/src/app/ui/editor/editor.h
+++ b/src/app/ui/editor/editor.h
@@ -305,7 +305,12 @@ namespace app {
     double m_aniSpeed;
 
     static doc::ImageBufferPtr m_renderBuffer;
-    AppRender m_renderEngine;
+
+    // The render engine must be shared between all editors so when a
+    // DrawingState is being used in one editor, other editors for the
+    // same document can show the same preview image/stroke being drawn
+    // (search for Render::setPreviewImage()).
+    static AppRender m_renderEngine;
   };
 
   ui::WidgetType editor_type();