Improve the look and feel of Mac extension arrow

This adds an improved extension arrow as well as a graphic
for retina macs.

Change-Id: Ie7395bbd87d6d354437bdbcc0cf258a27c09a360
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>

src/widgets/styles/qmacstyle_mac.mm

@@ -48,7 +48,6 @@
 
 #include "qmacstyle_mac_p.h"
 #include "qmacstyle_mac_p_p.h"
-#include "qmacstylepixmaps_mac_p.h"
 
 #define QMAC_QAQUASTYLE_SIZE_CONSTRAIN
 //#define DEBUG_SIZE_CONSTRAINT
@@ -2375,6 +2374,9 @@ int QMacStyle::pixelMetric(PixelMetric metric, const QStyleOption *opt, const QW
     case PM_MenuHMargin:
         ret = 0;
         break;
+    case PM_ToolBarExtensionExtent:
+        ret = 21;
+        break;
     case PM_ToolBarFrameWidth:
         ret = 1;
         if (widget) {
@@ -6362,7 +6364,7 @@ QIcon QMacStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *o
         return QCommonStyle::standardIcon(standardIcon, opt, widget);
     case SP_ToolBarHorizontalExtensionButton:
     case SP_ToolBarVerticalExtensionButton: {
-        QPixmap pixmap(qt_mac_toolbar_ext);
+        QPixmap pixmap(QLatin1String(":/qt-project.org/styles/macstyle/images/toolbar-ext.png"));
         if (standardIcon == SP_ToolBarVerticalExtensionButton) {
             QPixmap pix2(pixmap.height(), pixmap.width());
             pix2.fill(Qt::transparent);

src/widgets/styles/qmacstylepixmaps_mac_p.h

@@ -1,72 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the QtGui module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights.  These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QMACSTYLEPIXMAPS_MAC_P_H
-#define QMACSTYLEPIXMAPS_MAC_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-static const char * const qt_mac_toolbar_ext[]={
-    "14 9 4 1",
-    "# c #858585",
-    "b c #d9d9d9",
-    ". c #dbdbdb",
-    "a c None",
-    ".###..###.aaaa",
-    "a.###..###.aaa",
-    "aab###bb###baa",
-    "aaab###bb###ba",
-    "aaaa.###..###.",
-    "aaa.###..###.a",
-    "aab###bb###baa",
-    "ab###bb###baaa",
-    ".###..###.aaaa"};
-
-#endif //  QMACSTYLEPIXMAPS_MAC_P_H

src/widgets/styles/qstyle.qrc

@@ -133,5 +133,7 @@
         <file>images/closedock-down-16.png</file>
         <file>images/dockdock-16.png</file>
         <file>images/dockdock-down-16.png</file>
+        <file>images/toolbar-ext.png</file>
+        <file>images/toolbar-ext@2x.png</file>
     </qresource>
 </RCC>

src/widgets/styles/styles.pri

@@ -52,7 +52,6 @@ contains(QT_CONFIG, gtkstyle) {
 contains( styles, mac ) {
     HEADERS += \
         styles/qmacstyle_mac_p.h \
-        styles/qmacstylepixmaps_mac_p.h \
         styles/qmacstyle_mac_p_p.h
         OBJECTIVE_SOURCES += styles/qmacstyle_mac.mm