00001 //# Copyright (C) 2005 00002 //# Associated Universities, Inc. Washington DC, USA. 00003 //# 00004 //# This library is free software; you can redistribute it and/or modify it 00005 //# under the terms of the GNU Library General Public License as published by 00006 //# the Free Software Foundation; either version 2 of the License, or (at your 00007 //# option) any later version. 00008 //# 00009 //# This library is distributed in the hope that it will be useful, but WITHOUT 00010 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00011 //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 00012 //# License for more details. 00013 //# 00014 //# You should have received a copy of the GNU Library General Public License 00015 //# along with this library; if not, write to the Free Software Foundation, 00016 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. 00017 //# 00018 //# Correspondence concerning AIPS++ should be addressed as follows: 00019 //# Internet email: aips2-request@nrao.edu. 00020 //# Postal address: AIPS++ Project Office 00021 //# National Radio Astronomy Observatory 00022 //# 520 Edgemont Road 00023 //# Charlottesville, VA 22903-2475 USA 00024 //# 00025 00026 #ifndef EXTERNALAXIS_WIDGET_H_ 00027 #define EXTERNALAXIS_WIDGET_H_ 00028 00029 #include <QWidget> 00030 #include <qwt_plot.h> 00031 00032 00033 namespace casa { 00034 00040 class ExternalAxisControl : public QWidget { 00041 public: 00042 ExternalAxisControl(QWidget* parent); 00043 void setAxisLabel( const QString& label ); 00044 void setPlot( QwtPlot* canvas ); 00045 virtual void paintEvent( QPaintEvent* event ); 00046 virtual ~ExternalAxisControl(); 00047 00048 protected: 00049 virtual void drawTicks( QPainter* painter, int tickLength ) = 0; 00050 virtual void defineAxis( QLine& axisLine ) = 0; 00051 virtual void drawAxisLabel( QPainter* painter ) = 0; 00052 virtual int getCanvasHeight() const; 00053 virtual int getStartY() const; 00054 int getTickIncrement( int tickCount ) const; 00055 double getTickStartPixel( QwtPlot::Axis axis ); 00056 double getTickDistance( QwtPlot::Axis axis ); 00057 double getTickIncrement( double tickDistance, QwtPlot::Axis axis ); 00058 QwtPlot* plot; 00059 QString axisLabel; 00060 const int AXIS_SMALL_SIDE; 00061 const int MARGIN; 00062 const int MIN_START_Y; 00063 00064 private: 00065 void drawBackBone( QPainter* painter ); 00066 void drawTicks( QPainter* painter ); 00067 void drawLabel( QPainter* painter ); 00068 const int FONT_SIZE; 00069 const int FONT_SIZE_AXIS_LABEL; 00070 }; 00071 00072 } /* namespace casa */ 00073 #endif /* EXTERNALAXIS_WIDGET_H_ */