Copy-on-write for class VAbstractFloatItemData.

--HG--
branch : feature

src/libs/vpatterndb/floatItemData/vabstractfloatitemdata.cpp

@@ -27,13 +27,29 @@
  *************************************************************************/
 
 #include "vabstractfloatitemdata.h"
+#include "vabstractfloatitemdata_p.h"
 
 //---------------------------------------------------------------------------------------------------------------------
 VAbstractFloatItemData::VAbstractFloatItemData()
-    : m_ptPos(),
-      m_bVisible(false)
+    : d(new VAbstractFloatItemDataPrivate())
 {}
 
+//---------------------------------------------------------------------------------------------------------------------
+VAbstractFloatItemData::VAbstractFloatItemData(const VAbstractFloatItemData &data)
+    : d (data.d)
+{}
+
+//---------------------------------------------------------------------------------------------------------------------
+VAbstractFloatItemData &VAbstractFloatItemData::operator=(const VAbstractFloatItemData &data)
+{
+    if ( &data == this )
+    {
+        return *this;
+    }
+    d = data.d;
+    return *this;
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 VAbstractFloatItemData::~VAbstractFloatItemData()
 {}
@@ -41,23 +57,23 @@ VAbstractFloatItemData::~VAbstractFloatItemData()
 //---------------------------------------------------------------------------------------------------------------------
 QPointF VAbstractFloatItemData::GetPos() const
 {
-    return m_ptPos;
+    return d->m_ptPos;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 void VAbstractFloatItemData::SetPos(const QPointF &ptPos)
 {
-    m_ptPos = ptPos;
+    d->m_ptPos = ptPos;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 bool VAbstractFloatItemData::IsVisible() const
 {
-    return m_bVisible;
+    return d->m_bVisible;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 void VAbstractFloatItemData::SetVisible(bool bVisible)
 {
-    m_bVisible = bVisible;
+    d->m_bVisible = bVisible;
 }

src/libs/vpatterndb/floatItemData/vabstractfloatitemdata.h

@@ -30,11 +30,16 @@
 #define VABSTRACTFLOATITEMDATA_H
 
 #include <QPointF>
+#include <QSharedDataPointer>
+
+class VAbstractFloatItemDataPrivate;
 
 class VAbstractFloatItemData
 {
 public:
     VAbstractFloatItemData();
+    VAbstractFloatItemData(const VAbstractFloatItemData &data);
+    VAbstractFloatItemData &operator=(const VAbstractFloatItemData &data);
     virtual ~VAbstractFloatItemData();
 
     // methods, which set and return values of different parameters
@@ -44,11 +49,8 @@ public:
     bool IsVisible() const;
     void SetVisible(bool bVisible);
 
-protected:
-    /** @brief m_ptPos position of label's top left corner */
-    QPointF m_ptPos;
-    /** @brief m_bVisible visibility flag */
-    bool    m_bVisible;
+private:
+    QSharedDataPointer<VAbstractFloatItemDataPrivate> d;
 };
 
 #endif // VABSTRACTFLOATITEMDATA_H

src/libs/vpatterndb/floatItemData/vabstractfloatitemdata_p.h

@@ -0,0 +1,71 @@
+/************************************************************************
+ **
+ **  @file
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   23 2, 2017
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentine project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2017 Valentina project
+ **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
+ **
+ **  Valentina is free software: you can redistribute it and/or modify
+ **  it under the terms of the GNU General Public License as published by
+ **  the Free Software Foundation, either version 3 of the License, or
+ **  (at your option) any later version.
+ **
+ **  Valentina is distributed in the hope that it will be useful,
+ **  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ **  GNU General Public License for more details.
+ **
+ **  You should have received a copy of the GNU General Public License
+ **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+
+#ifndef VABSTRACTFLOATITEMDATA_P_H
+#define VABSTRACTFLOATITEMDATA_P_H
+
+#include <QPointF>
+#include <QSharedData>
+
+#include "../vmisc/diagnostic.h"
+
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_GCC("-Weffc++")
+
+class VAbstractFloatItemDataPrivate : public QSharedData
+{
+public:
+    VAbstractFloatItemDataPrivate()
+        : m_ptPos(),
+          m_bVisible(false)
+    {}
+
+    VAbstractFloatItemDataPrivate(const VAbstractFloatItemDataPrivate &data)
+        : QSharedData(data),
+          m_ptPos(data.m_ptPos),
+          m_bVisible(data.m_bVisible)
+    {}
+
+    ~VAbstractFloatItemDataPrivate();
+
+    /** @brief m_ptPos position of label's top left corner */
+    QPointF m_ptPos;
+    /** @brief m_bVisible visibility flag */
+    bool    m_bVisible;
+
+private:
+    VAbstractFloatItemDataPrivate &operator=(const VAbstractFloatItemDataPrivate &) Q_DECL_EQ_DELETE;
+};
+
+VAbstractFloatItemDataPrivate::~VAbstractFloatItemDataPrivate()
+{}
+
+QT_WARNING_POP
+
+#endif // VABSTRACTFLOATITEMDATA_P_H
+

src/libs/vpatterndb/vpatterndb.pri

@@ -67,4 +67,5 @@ HEADERS += \
     $$PWD/floatItemData/vpiecelabeldata.h \
     $$PWD/floatItemData/vpatternlabeldata.h \
     $$PWD/floatItemData/vgrainlinedata.h \
-    $$PWD/floatItemData/vabstractfloatitemdata.h
+    $$PWD/floatItemData/vabstractfloatitemdata.h \
+    $$PWD/floatItemData/vabstractfloatitemdata_p.h