refs #368, pixmap class which is DBus compliant

src/blackmisc/pixmap.cpp

@@ -0,0 +1,62 @@
+/* Copyright (C) 2013
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "pixmap.h"
+#include <QBuffer>
+
+namespace BlackMisc
+{
+
+    CPixmap::CPixmap(const QPixmap &pixmap) : m_pixmap(pixmap), m_hasCachedPixmap(true)
+    {
+        this->fillByteArray();
+    }
+
+    const QPixmap &CPixmap::pixmap() const
+    {
+        if (this->m_hasCachedPixmap) { return this->m_pixmap; }
+        this->m_hasCachedPixmap = true;
+        if (this->m_array.isEmpty()) { return this->m_pixmap; }
+        bool s = this->m_pixmap.loadFromData(this->m_array, "PNG");
+        Q_ASSERT(s);
+        Q_UNUSED(s);
+        return this->m_pixmap;
+    }
+
+    bool CPixmap::isNull() const
+    {
+        if (this->m_hasCachedPixmap) { return false; }
+        return (this->m_array.isEmpty() || this->m_array.isNull());
+    }
+
+    CPixmap::operator QPixmap() const
+    {
+        return QPixmap(pixmap());
+    }
+
+    QString CPixmap::convertToQString(bool i18n) const
+    {
+        Q_UNUSED(i18n);
+        return "Pixmap";
+    }
+
+    QPixmap CPixmap::toPixmap() const
+    {
+        return this->pixmap();
+    }
+
+    void CPixmap::fillByteArray()
+    {
+        QBuffer buffer(&this->m_array);
+        buffer.open(QIODevice::WriteOnly);
+        this->m_pixmap.save(&buffer, "PNG");
+        buffer.close();
+    }
+
+} // namespace

src/blackmisc/pixmap.h

@@ -0,0 +1,64 @@
+/* Copyright (C) 2013
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKMISC_PIXMAP_H
+#define BLACKMISC_PIXMAP_H
+
+#include "valueobject.h"
+#include <QPixmap>
+
+namespace BlackMisc
+{
+    //! Value object for icons. An icon is stored in the global icon repository and
+    //! identified by its index. It contains no(!) pyhsical data for the icon itself.
+    class CPixmap : public CValueObjectStdTuple<CPixmap>
+    {
+    public:
+        //! Default constructor.
+        CPixmap() = default;
+
+        //! Constructor.
+        CPixmap(const QPixmap &pixmap);
+
+        //! Corresponding pixmap
+        const QPixmap &pixmap() const;
+
+        //! Implicit conversion
+        operator QPixmap() const;
+
+        //! With Pixmap?
+        bool isNull() const;
+
+    protected:
+        //! \copydoc CValueObject::convertToQString
+        virtual QString convertToQString(bool i18n = false) const override;
+
+        //! \copydoc CValueObject::toPixmap
+        virtual QPixmap toPixmap() const override;
+
+    private:
+        BLACK_ENABLE_TUPLE_CONVERSION(BlackMisc::CPixmap)
+
+        //!
+        void fillByteArray();
+
+        mutable QPixmap m_pixmap;               //!< cached pixmap, mutable because of lazy initialization
+        mutable bool m_hasCachedPixmap = false; //!< pixmap? Mutable because of lazy initialization
+        QByteArray m_array;                     //!< data of pixmap
+    };
+} // namespace
+
+BLACK_DECLARE_TUPLE_CONVERSION(BlackMisc::CPixmap, (
+                                   attr(o.m_array, flags<DisabledForJson>())
+                               ))
+Q_DECLARE_METATYPE(BlackMisc::CPixmap)
+
+#endif // guard