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