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   1 /*
   2  * Copyright © 2013 Mike Beattie <mike@ethernal.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 package org.altusmetrum.AltosDroid;
  20
  21 import org.altusmetrum.altoslib_14.*;
  22 import android.location.Location;
  23 import android.app.Activity;
  24 import android.content.*;
  25 import androidx.fragment.app.Fragment;
  26 import androidx.fragment.app.FragmentTransaction;
  27 import android.widget.TextView;
  28
  29 public abstract class AltosDroidTab extends Fragment implements AltosUnitsListener {
  30         TelemetryState          last_telem_state;
  31         AltosState              last_state;
  32         AltosGreatCircle        last_from_receiver;
  33         Location                last_receiver;
  34         AltosDroid              altos_droid;
  35
  36         public abstract void show(TelemetryState telem_state, AltosState state, AltosGreatCircle from_receiver, Location receiver);
  37
  38         public abstract String tab_name();
  39
  40         public void units_changed(boolean imperial_units) {
  41                 if (!isHidden())
  42                         show(last_telem_state, last_state, last_from_receiver, last_receiver);
  43         }
  44
  45         public void set_value(TextView text_view,
  46                               AltosUnits units,
  47                               int width,
  48                               double value) {
  49                 if (value == AltosLib.MISSING)
  50                         text_view.setText("");
  51                 else
  52                         text_view.setText(units.show(width, value));
  53         }
  54
  55         public void set_visible(boolean visible) {
  56                 FragmentTransaction     ft = AltosDroid.fm.beginTransaction();
  57                 AltosDebug.debug("set visible %b %s\n", visible, tab_name());
  58                 if (visible) {
  59                         ft.show(this);
  60                         show(last_telem_state, last_state, last_from_receiver, last_receiver);
  61                 } else
  62                         ft.hide(this);
  63                 try {
  64                         ft.commitAllowingStateLoss();
  65                 } catch (IllegalStateException ie) {
  66                 }
  67         }
  68
  69         @Override
  70         public void onAttach(Context context) {
  71                 AltosDebug.debug("tab onAttach %s %s\n", tab_name(), this);
  72                 super.onAttach(context);
  73                 altos_droid = (AltosDroid) context;
  74                 altos_droid.registerTab(this);
  75         }
  76
  77         @Override
  78         public void onDetach() {
  79                 AltosDebug.debug("tab onDetach %s %s\n", tab_name(), this);
  80                 super.onDetach();
  81                 altos_droid.unregisterTab(this);
  82                 altos_droid = null;
  83         }
  84
  85         @Override
  86         public void onResume() {
  87                 super.onResume();
  88                 AltosDebug.debug("onResume tab %s %s\n", tab_name(), this);
  89                 set_visible(true);
  90         }
  91
  92         public void update_ui(TelemetryState telem_state, AltosState state,
  93                               AltosGreatCircle from_receiver, Location receiver, boolean is_current)
  94         {
  95                 AltosDebug.debug("update_ui %s is_current %b\n", tab_name(), is_current);
  96                 last_telem_state = telem_state;
  97                 last_state = state;
  98                 last_from_receiver = from_receiver;
  99                 last_receiver = receiver;
 100                 if (is_current)
 101                         show(telem_state, state, from_receiver, receiver);
 102                 else
 103                         return;
 104         }
 105 }