1 // BaseDiagram.hxx - part of GUI launcher using Qt5
3 // Written by James Turner, started October 2015.
5 // Copyright (C) 2014 James Turner <zakalawe@mac.com>
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 #ifndef GUI_BASEDIAGRAM_HXX
22 #define GUI_BASEDIAGRAM_HXX
25 #include <QPainterPath>
27 #include <simgear/math/sg_geodesy.hxx>
29 class BaseDiagram : public QWidget
33 BaseDiagram(QWidget* pr);
38 virtual void paintEvent(QPaintEvent* pe);
40 virtual void mousePressEvent(QMouseEvent* me);
41 virtual void mouseMoveEvent(QMouseEvent* me);
43 virtual void wheelEvent(QWheelEvent* we);
45 virtual void paintContents(QPainter*);
48 void recomputeBounds(bool resetZoom);
50 virtual void doComputeBounds();
52 void extendBounds(const QPointF& p);
53 QPointF project(const SGGeod& geod) const;
54 QTransform transform() const;
56 SGGeod m_projectionCenter;
60 QPointF m_panOffset, m_lastMousePos;
61 int m_wheelAngleDeltaAccumulator;
65 #endif // of GUI_BASEDIAGRAM_HXX