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224 lines
6.6 KiB
224 lines
6.6 KiB
/***************************************************************************
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altvstime.h - description
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-------------------
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begin : Mon Dec 23 2002
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copyright : (C) 2002 by Pablo de Vicente
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email : vicente@oan.es
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef ALTVSTIME_H
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#define ALTVSTIME_H
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#include "kstarsplotwidget.h"
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class KStarsDateTime;
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class TQTime;
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class TQVariant;
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class TQVBoxLayout;
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class KDialogBase;
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class TDELocale;
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class SkyObject;
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class SkyPoint;
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class dms;
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class GeoLocation;
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class KStars;
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class AltVsTimeUI;
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/**@class AVTPlotWidget
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*@short An extension of the KStarsPlotWidget for the AltVsTime tool.
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*The biggest difference is that in addition to the plot objects, it
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*draws the "ground" below Alt=0 and draws the sky light blue for day
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*times, and black for night times. The transition between day and
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*night is drawn with a gradient, and the position follows the actual
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*sunrise/sunset times of the given date/location.
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*Also, this plot widget provides two time axes (local time along the
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*bottom, and local sideral time along the top).
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*@version 1.0
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*@author Jason Harris
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*/
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class AVTPlotWidget : public KStarsPlotWidget
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{
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Q_OBJECT
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public:
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/**Constructor
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*/
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AVTPlotWidget( double x1=0.0, double x2=1.0, double y1=0.0, double y2=1.0, TQWidget *parent=0, const char* name=0 );
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/**Set the fractional positions of the Sunrise and Sunset positions,
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*in units where last midnight was 0.0, and next midnight is 1.0.
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*i.e., if Sunrise is at 06:00, then we set it as 0.25 in this
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*function. Likewise, if Sunset is at 18:00, then we set it as
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*0.75 in this function.
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*@param sr the fractional position of Sunrise
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*@param ss the fractional position of Sunset
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*/
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void setSunRiseSetTimes( double sr, double ss ) { SunRise = sr; SunSet = ss; }
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protected:
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/**Handle mouse move events. If the mouse button is down,
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*draw crosshair lines centered at the cursor position. This
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*allows the user to pinpoint specific position sin the plot.
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*/
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void mouseMoveEvent( TQMouseEvent *e );
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/**Simply calls mouseMoveEvent().
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*/
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void mousePressEvent( TQMouseEvent *e );
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/**Redraw the plot.
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*/
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void paintEvent( TQPaintEvent *e );
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private:
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double SunRise, SunSet;
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};
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/**@class AltVsTime
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*@short the Altitude vs. Time Tool.
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*Plot the altitude as a function of time for any list of
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*objects, as seen from any location, on any date.
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*@version 1.0
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*@author Jason Harris
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*/
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class AltVsTime : public KDialogBase
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{
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Q_OBJECT
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public:
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/**Constructor
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*/
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AltVsTime( TQWidget* parent = 0);
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/**Destructor
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*/
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~AltVsTime();
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/**Determine the limits for the sideral time axis, using
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*the sidereal time at midnight for the current date
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*and location settings.
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*/
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void setLSTLimits();
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/**Set the AltVsTime Date according to the current Date
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*in the KStars main window. Currently, this is only
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*used in the ctor to initialize the Date.
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*/
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void showCurrentDate (void);
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/**@return a KStarsDateTime object constructed from the
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*current setting in the Date widget.
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*/
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KStarsDateTime getDate (void);
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/**Determine the time of sunset and sunrise for the current
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*date and location settings. Convert the times to doubles,
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*expressing the times as fractions of a full day.
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*Calls AVTPlotWidget::setSunRiseSetTimes() to send the
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*numbers to the plot widget.
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*/
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void computeSunRiseSetTimes();
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/**Parse a string as an epoch number. If the string can't
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*be parsed, return 2000.0.
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*@param eName the epoch string to be parsed
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*@return the epoch number
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*/
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double getEpoch (TQString eName);
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/**@short Add a SkyObject to the display.
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*Constructs a PLotObject representing the Alt-vs-time curve for the object.
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*@param o pointer to the SkyObject to be added
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*@param forceAdd if true, then the object will be added, even if there
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*is already a curve for the same coordinates.
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*/
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void processObject( SkyObject *o, bool forceAdd=false );
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/**@short Determine the altitude coordinate of a SkyPoint,
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*given an hour of the day.
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*
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*This is called for every 30-minute interval in the displayed Day,
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*in order to construct the altitude curve for a given object.
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*@param p the skypoint whose altitude is to be found
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*@param hour the time in the displayed day, expressed in hours
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*@return the Altitude, expresse in degrees
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*/
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double findAltitude( SkyPoint *p, double hour );
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/**@return the currently highlighted item in the list of displayed
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*objects
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*/
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int currentPlotListItem() const;
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/**@return a pointer to the list of SkyPoints representing the
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*objects being displayed.
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*/
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TQPtrList<SkyPoint>* skyPointList() { return &pList; }
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public slots:
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/**@short Update the plot to reflec new Date and Location settings.
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*/
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void slotUpdateDateLoc(void);
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/**@short Clear the list of displayed objects.
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*/
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void slotClear(void);
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/**@short Clear the edit boxes for specifying a new object.
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*/
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void slotClearBoxes(void);
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/**@short Add an object to the list of displayed objects, according
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*to the data entered in the edit boxes.
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*/
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void slotAddSource(void);
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/**@short Launch the Find Object window to select a new object for
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*the list of displayed objects.
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*/
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void slotBrowseObject(void);
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/**@short Launch the Location dialog to choose a new location.
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*/
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void slotChooseCity(void);
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/**@short Move input keyboard focus to the next logical widget.
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*We need a separate slot for this because we are intercepting
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*Enter key events, which close the window by default, to
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*advance input focus instead (when the Enter events occur in
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*certain Edit boxes).
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*/
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void slotAdvanceFocus(void);
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/**Update the plot to highlight the altitude curve of the objects
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*which is highlighted in the listbox.
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*/
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void slotHighlight(void);
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private:
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AVTPlotWidget *View;
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AltVsTimeUI *avtUI;
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TQVBoxLayout *topLayout;
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GeoLocation *geo;
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KStars *ks;
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TQPtrList<SkyPoint> pList;
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TQPtrList<SkyPoint> deleteList;
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int DayOffset;
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bool dirtyFlag;
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};
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#endif // ALTVSTIME_H
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