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77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2019- Ceetron Solutions AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#pragma once
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#include <QIcon>
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#include <QPixmap>
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#include <QString>
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#include <memory>
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namespace caf
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{
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//==================================================================================================
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/// Utility class to provide QIcons when required. Qt crashes if a non-empty QIcon is created
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/// ... without a GUI Application running. So create the icon on demand instead.
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//==================================================================================================
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class QIconProvider
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{
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public:
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QIconProvider();
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QIconProvider(const QString& iconResourceString);
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QIconProvider(const QPixmap& pixmap);
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QIconProvider(const QIconProvider& rhs);
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QIconProvider& operator=(const QIconProvider& rhs);
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QIcon icon() const;
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virtual bool isNull() const;
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void setActive(bool active);
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void setIconResourceString(const QString& iconResourceString);
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void setPixmap(const QPixmap& pixmap);
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protected:
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bool hasValidPixmap() const;
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virtual QIcon generateIcon() const;
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static bool isGuiApplication();
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protected:
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QString m_iconResourceString;
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std::unique_ptr<QPixmap> m_iconPixmap;
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mutable QIcon m_icon;
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bool m_active;
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};
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}
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