66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
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// BaseDiagram.hxx - part of GUI launcher using Qt5
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//
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// Written by James Turner, started October 2015.
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//
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// Copyright (C) 2014 James Turner <zakalawe@mac.com>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifndef GUI_BASEDIAGRAM_HXX
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#define GUI_BASEDIAGRAM_HXX
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#include <QWidget>
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#include <QPainterPath>
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#include <simgear/math/sg_geodesy.hxx>
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class BaseDiagram : public QWidget
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{
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Q_OBJECT
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public:
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BaseDiagram(QWidget* pr);
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protected:
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virtual void paintEvent(QPaintEvent* pe);
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virtual void mousePressEvent(QMouseEvent* me);
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virtual void mouseMoveEvent(QMouseEvent* me);
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virtual void wheelEvent(QWheelEvent* we);
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virtual void paintContents(QPainter*);
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protected:
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void recomputeBounds(bool resetZoom);
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virtual void doComputeBounds();
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void extendBounds(const QPointF& p);
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QPointF project(const SGGeod& geod) const;
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QTransform transform() const;
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SGGeod m_projectionCenter;
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double m_scale;
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QRectF m_bounds;
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bool m_autoScalePan;
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QPointF m_panOffset, m_lastMousePos;
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int m_wheelAngleDeltaAccumulator;
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bool m_didPan;
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};
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#endif // of GUI_BASEDIAGRAM_HXX
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