From c52bb0309071bed9e040c79d87f764bac6a396b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= <tor.arne.vestbo@qt.io>
Date: Mon, 12 Sep 2016 17:05:39 +0200
Subject: macOS: Move QMacCGContext helper into QtGui
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The implementation was duplicated and spread out between QMacStyle,
QMacPaintEngine, and the Cocoa platform plugin.

Moving it into QtGui allows using it on other Apple platform.

Change-Id: Iadcbd71998204887e116271c575037789b6e2163
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
---
 src/gui/painting/qcoregraphics_p.h | 99 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 src/gui/painting/qcoregraphics_p.h

(limited to 'src/gui/painting/qcoregraphics_p.h')

diff --git a/src/gui/painting/qcoregraphics_p.h b/src/gui/painting/qcoregraphics_p.h
new file mode 100644
index 0000000000..b6ea5474ec
--- /dev/null
+++ b/src/gui/painting/qcoregraphics_p.h
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOREGRAPHICS_P_H
+#define QCOREGRAPHICS_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.
+//
+
+#include <QtGui/private/qtguiglobal_p.h>
+#include <QtGui/qregion.h>
+
+#include <CoreGraphics/CoreGraphics.h>
+
+QT_BEGIN_NAMESPACE
+
+Q_GUI_EXPORT CGColorSpaceRef qt_mac_genericColorSpace();
+Q_GUI_EXPORT CGColorSpaceRef qt_mac_colorSpaceForDeviceType(const QPaintDevice *paintDevice);
+
+Q_GUI_EXPORT void qt_mac_clip_cg(CGContextRef hd, const QRegion &rgn, CGAffineTransform *orig_xform);
+
+class Q_GUI_EXPORT QMacCGContext
+{
+public:
+    inline QMacCGContext() { context = 0; }
+    QMacCGContext(QPaintDevice *pdev);
+    QMacCGContext(QPainter *p);
+    inline QMacCGContext(CGContextRef cg, bool takeOwnership = false) {
+        context = cg;
+        if (!takeOwnership)
+            CGContextRetain(context);
+    }
+    inline QMacCGContext(const QMacCGContext &copy) : context(0) { *this = copy; }
+    inline ~QMacCGContext() {
+        if (context)
+            CGContextRelease(context);
+    }
+    inline bool isNull() const { return context; }
+    inline operator CGContextRef() { return context; }
+    inline QMacCGContext &operator=(const QMacCGContext &copy) {
+        if (context)
+            CGContextRelease(context);
+        context = copy.context;
+        CGContextRetain(context);
+        return *this;
+    }
+    inline QMacCGContext &operator=(CGContextRef cg) {
+        if (context)
+            CGContextRelease(context);
+        context = cg;
+        CGContextRetain(context); //we do not take ownership
+        return *this;
+    }
+
+private:
+    CGContextRef context;
+};
+
+QT_END_NAMESPACE
+
+#endif // QCOREGRAPHICS_P_H
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