src/Dialogs/GeoPointEntry.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2011 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "Dialogs/GeoPointEntry.hpp"
  25 #include "Dialogs/WidgetDialog.hpp"
  26 #include "Widget/FixedWindowWidget.hpp"
  27 #include "Widget/TwoWidgets.hpp"
  28 #include "Form/Form.hpp"
  29 #include "Form/DigitEntry.hpp"
  30 #include "Form/LambdaActionListener.hpp"
  31 #include "Screen/SingleWindow.hpp"
  32 #include "Language/Language.hpp"
  33 #include "UIGlobals.hpp"
  34 #include "Geo/GeoPoint.hpp"
  35
  36 enum {
  37   CLEAR = 100,
  38 };
  39
  40 bool
  41 GeoPointEntryDialog(const TCHAR *caption, GeoPoint &value,
  42                     bool nullable)
  43 {
  44   /* create the dialog */
  45
  46   const DialogLook &look = UIGlobals::GetDialogLook();
  47
  48   WidgetDialog dialog(look);
  49   dialog.CreatePreliminary(UIGlobals::GetMainWindow(), caption);
  50
  51   ContainerWindow &client_area = dialog.GetClientAreaWindow();
  52
  53   /* create the input control */
  54
  55   WindowStyle control_style;
  56   control_style.Hide();
  57   control_style.TabStop();
  58
  59   DigitEntry latitude_entry(look);
  60   latitude_entry.CreateLatitude(client_area, client_area.GetClientRect(),
  61                                 control_style);
  62   latitude_entry.Resize(latitude_entry.GetRecommendedSize());
  63   latitude_entry.SetActionListener(dialog, mrOK);
  64
  65   DigitEntry longitude_entry(look);
  66   longitude_entry.CreateLongitude(client_area, client_area.GetClientRect(),
  67                                   control_style);
  68   longitude_entry.Resize(longitude_entry.GetRecommendedSize());
  69   longitude_entry.SetActionListener(dialog, mrOK);
  70
  71   if (value.IsValid()) {
  72     latitude_entry.SetLatitude(value.latitude);
  73     longitude_entry.SetLongitude(value.longitude);
  74   } else {
  75     latitude_entry.SetInvalid();
  76     longitude_entry.SetInvalid();
  77   }
  78
  79   /* create buttons */
  80
  81   dialog.AddButton(_("OK"), dialog, mrOK);
  82   dialog.AddButton(_("Cancel"), dialog, mrCancel);
  83
  84   auto clear_listener = MakeLambdaActionListener([&latitude_entry,
  85                                                   &longitude_entry](unsigned){
  86       latitude_entry.SetInvalid();
  87       longitude_entry.SetInvalid();
  88     });
  89   if (nullable)
  90     dialog.AddButton(_("Clear"), clear_listener, 0);
  91
  92   /* run it */
  93
  94   TwoWidgets widget(new FixedWindowWidget(&latitude_entry),
  95                     new FixedWindowWidget(&longitude_entry),
  96                     true);
  97   dialog.FinishPreliminary(&widget);
  98
  99   bool result = dialog.ShowModal() == mrOK;
 100   dialog.StealWidget();
 101   if (!result)
 102     return false;
 103
 104   value = GeoPoint(longitude_entry.GetLongitude(),
 105                    latitude_entry.GetLatitude());
 106   return true;
 107 }