File: gtk-polar-plot.h

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
    Gpredict: Real-time satellite tracking and orbit prediction program

    Copyright (C)  2001-2009  Alexandru Csete, OZ9AEC.

    Authors: Alexandru Csete <oz9aec@gmail.com>

    Comments, questions and bugreports should be submitted via
    http://sourceforge.net/projects/gpredict/
    More details can be found at the project home page:

            http://gpredict.oz9aec.net/

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, visit http://www.fsf.org/
*/
#ifndef __GTK_POLAR_PLOT_H__
#define __GTK_POLAR_PLOT_H__ 1

#include <glib.h>
#include <glib/gi18n.h>
#include <gdk/gdk.h>
#include <gtk/gtkwidget.h>
#include <gtk/gtkvbox.h>
#include "gtk-sat-data.h"
#include "predict-tools.h"
#include <goocanvas.h>


#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


    /** \brief Number of time ticks. */
#define TRACK_TICK_NUM 5


#define GTK_POLAR_PLOT(obj)          GTK_CHECK_CAST (obj, gtk_polar_plot_get_type (), GtkPolarPlot)
#define GTK_POLAR_PLOT_CLASS(klass)  GTK_CHECK_CLASS_CAST (klass, gtk_polar_plot_get_type (), GtkPolarPlotClass)
#define GTK_IS_POLAR_PLOT(obj)       GTK_CHECK_TYPE (obj, gtk_polar_plot_get_type ())
#define GTK_TYPE_POLAR_PLOT          (gtk_polar_plot_get_type ())
#define IS_GTK_POLAR_PLOT(obj)       GTK_CHECK_TYPE (obj, gtk_polar_plot_get_type ())

    typedef struct _GtkPolarPlot        GtkPolarPlot;
    typedef struct _GtkPolarPlotClass   GtkPolarPlotClass;



    /* graph orientation; start at 12
   o'clock and go clockwise */
    typedef enum {
        POLAR_PLOT_NESW = 0,  /*!< Normal / usual */
        POLAR_PLOT_NWSE = 1,
        POLAR_PLOT_SENW = 2,
        POLAR_PLOT_SWNE = 3
                      } polar_plot_swap_t;


    /* pole identifier */
    typedef enum {
        POLAR_PLOT_POLE_N = 0,
        POLAR_PLOT_POLE_E = 1,
        POLAR_PLOT_POLE_S = 2,
        POLAR_PLOT_POLE_W = 3
                        } polar_plot_pole_t;


    struct _GtkPolarPlot
    {
        GtkVBox vbox;

        GtkWidget  *canvas;   /*!< The canvas widget */

        GooCanvasItemModel *C00, *C30, *C60; /*!< 0, 30 and 60 deg elevation circles */
        GooCanvasItemModel *hl, *vl;         /*!< horizontal and vertical lines */
        GooCanvasItemModel *N,*S,*E,*W;      /*!< North, South, East and West labels */
        GooCanvasItemModel *locnam;          /*!< Location name */
        GooCanvasItemModel *curs;            /*!< cursor tracking text */

        pass_t             *pass;
        GooCanvasItemModel *track;                  /*!< Sky track. */
        GooCanvasItemModel *target;                 /*!< Target object marker */
        GooCanvasItemModel *ctrl;                   /*!< Position marker for the controller */
        GooCanvasItemModel *rot1,*rot2,*rot3,*rot4; /*!< Position marker for the rotor */
        GooCanvasItemModel *trtick[TRACK_TICK_NUM]; /*!< Time ticks along the sky track */

        qth_t      *qth;      /*!< Pointer to current location. */


        guint       cx;       /*!< center X */
        guint       cy;       /*!< center Y */
        guint       r;        /*!< radius */
        guint       size;     /*!< Size of the box = min(h,w) */


        polar_plot_swap_t swap;

        gboolean    qthinfo;     /*!< Show the QTH info. */
        gboolean    cursinfo;    /*!< Track the mouse cursor. */
        gboolean    extratick;   /*!< Show extra ticks */
    };

    struct _GtkPolarPlotClass
    {
        GtkVBoxClass parent_class;
    };



    GtkType        gtk_polar_plot_get_type   (void);

    GtkWidget*     gtk_polar_plot_new        (qth_t *qth, pass_t *pass);

    void gtk_polar_plot_set_pass (GtkPolarPlot *plot, pass_t *pass);
    void gtk_polar_plot_set_target_pos (GtkPolarPlot *plot, gdouble az, gdouble el);
    void gtk_polar_plot_set_ctrl_pos (GtkPolarPlot *plot, gdouble az, gdouble el);
    void gtk_polar_plot_set_rotor_pos (GtkPolarPlot *plot, gdouble az, gdouble el);
    void gtk_polar_plot_show_time_ticks (GtkPolarPlot *plot, gboolean show);


#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* __GTK_POLAR_PLOT_H__ */