From 2bdc044b896dc7ed1f8cd87825d5fa00132ff62d Mon Sep 17 00:00:00 2001
From: shun_iwasawa <shun_iwasawa@c.dwango.co.jp>
Date: Jun 22 2016 11:46:24 +0000
Subject: revert planeviewer to inherit qglwidget


---

diff --git a/toonz/sources/include/toonzqt/planeviewer.h b/toonz/sources/include/toonzqt/planeviewer.h
index cf6ac97..ad98963 100644
--- a/toonz/sources/include/toonzqt/planeviewer.h
+++ b/toonz/sources/include/toonzqt/planeviewer.h
@@ -9,7 +9,7 @@
 #include "timage.h"
 
 // Qt includes
-#include <QOpenGLWidget>
+#include <QGLWidget>
 
 #undef DVAPI
 #undef DVVAR
@@ -51,7 +51,13 @@ class TVectorImageP;
             efficient image-drawing functions for all Toonz image types.
 */
 
-class DVAPI PlaneViewer : public QOpenGLWidget {
+/*
+CAUTION : Changing PlaneViewer to inherit QOpenGLWidget causes crash bug with 
+shader fx for some unknown reasons. So I will reluctantly keep using the 
+obsolete class until the shader fx being overhauled. 2016/6/22 Shun
+*/
+
+class DVAPI PlaneViewer : public QGLWidget {
 public:
   PlaneViewer(QWidget *parent);
 
diff --git a/toonz/sources/toonzqt/planeviewer.cpp b/toonz/sources/toonzqt/planeviewer.cpp
index bda59e0..db31236 100644
--- a/toonz/sources/toonzqt/planeviewer.cpp
+++ b/toonz/sources/toonzqt/planeviewer.cpp
@@ -55,7 +55,7 @@ bool PlaneViewerZoomer::zoom(bool zoomin, bool resetZoom) {
 //=========================================================================================
 
 PlaneViewer::PlaneViewer(QWidget *parent)
-    : QOpenGLWidget(parent)
+    : QGLWidget(parent)
     , m_firstResize(true)
     , m_xpos(0)
     , m_ypos(0)
@@ -186,7 +186,7 @@ void PlaneViewer::wheelEvent(QWheelEvent *event) {
 void PlaneViewer::keyPressEvent(QKeyEvent *event) {
   if (PlaneViewerZoomer(this).exec(event)) return;
 
-  QOpenGLWidget::keyPressEvent(event);
+  QGLWidget::keyPressEvent(event);
 }
 
 //------------------------------------------------------