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/***************************************************************************
* Copyright (C) gempa GmbH *
* All rights reserved. *
* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
* *
* GNU Affero General Public License Usage *
* This file may be used under the terms of the GNU Affero *
* Public License version 3.0 as published by the Free Software Foundation *
* and appearing in the file LICENSE included in the packaging of this *
* file. Please review the following information to ensure the GNU Affero *
* Public License version 3.0 requirements will be met: *
* https://www.gnu.org/licenses/agpl-3.0.html. *
* *
* Other Usage *
* Alternatively, this file may be used in accordance with the terms and *
* conditions contained in a signed written agreement between you and *
* gempa GmbH. *
***************************************************************************/
#ifndef SEISCOMP_GUI_DECORATOR_H
#define SEISCOMP_GUI_DECORATOR_H
#include <memory>
#include <QPainter>
#include <seiscomp/gui/qt.h>
namespace Seiscomp {
namespace Gui {
namespace Map {
class Canvas;
/** \class Decorator
*
* Abstract class to decorate a Symbol derived class. When a derived decorator is
* passed to a symbol the map and baseObject member are automatically set by the
* respective symbol. The same is true for all other (nested) decorator which are
* associated whith the passed decorator. Therefore the user is obliged to assure
* that the other decorator operate on the same type of datamodel object (pick, origin...)
*/
class SC_GUI_API Decorator {
// ------------------------------------------------------------------
// X'struction
// ------------------------------------------------------------------
public:
Decorator(Decorator* decorator = nullptr)
: _decorator(decorator),
_visible(true) {
}
virtual ~Decorator() {}
// ------------------------------------------------------------------
// Public Interface
// ------------------------------------------------------------------
public:
void draw(const Canvas *canvas, QPainter &painter) {
if ( _decorator.get() )
_decorator->draw(canvas, painter);
customDraw(canvas, painter);
}
void setVisible(bool visible) {
if ( _decorator.get() )
_decorator->setVisible(visible);
_visible = visible;
}
bool isVisible() const {
return _visible;
}
// ------------------------------------------------------------------
// Protected Interface
// ------------------------------------------------------------------
protected:
virtual void customDraw(const Canvas *canvas, QPainter &painter) = 0;
// ------------------------------------------------------------------
// Private Members
// ------------------------------------------------------------------
private:
std::unique_ptr<Decorator> _decorator;
bool _visible;
};
} // namespace Map
} // namespace Gui
} // namespace Seiscomp
#endif