src/DataField/Time.hpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2012 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 #ifndef XCSOAR_DATA_FIELD_TIME_HPP
  25 #define XCSOAR_DATA_FIELD_TIME_HPP
  26
  27 #include "DataField/Base.hpp"
  28 #include "PeriodClock.hpp"
  29 #include "Math/fixed.hpp"
  30
  31 class DataFieldTime : public DataField
  32 {
  33 private:
  34   int value;
  35   int min;
  36   int max;
  37   unsigned step;
  38   unsigned max_tokens;
  39   PeriodClock last_step;
  40   uint8_t speedup;
  41
  42   mutable TCHAR display_buffer[OUTBUFFERSIZE + 1];
  43
  44 protected:
  45   int SpeedUp(bool keyup);
  46
  47 public:
  48   DataFieldTime(int _min, int _max, int _value, unsigned _step,
  49                 DataAccessCallback OnDataAccess)
  50     :DataField(Type::TIME, true, OnDataAccess),
  51      value(_value), min(_min), max(_max), step(_step), max_tokens(2),
  52      speedup(0) {}
  53
  54
  55   void Inc();
  56   void Dec();
  57   virtual ComboList *CreateComboList() const;
  58   void SetFromCombo(int data_field_index, TCHAR *value_string);
  59
  60   virtual const TCHAR *GetAsString() const;
  61   virtual const TCHAR *GetAsDisplayString() const;
  62
  63   void SetValue(int _value) {
  64     value = _value;
  65   }
  66
  67   void SetMin(int _min) {
  68     min = _min;
  69   }
  70
  71   void SetMax(int _max) {
  72     max = _max;
  73   }
  74
  75   void SetStep(unsigned _step) {
  76     step = _step;
  77   }
  78
  79   void SetMaxTokenNumber(unsigned _max_tokens) {
  80     assert(max_tokens > 0 && max_tokens <= 4);
  81     max_tokens = _max_tokens;
  82   }
  83
  84   virtual int GetAsInteger() const {
  85     return value;
  86   }
  87
  88   virtual void SetAsInteger(int _value) {
  89     value = _value;
  90   }
  91
  92   fixed GetAsFixed() const {
  93     return fixed(value);
  94   }
  95
  96   void SetAsFixed(fixed value) {
  97     SetValue((int)value);
  98   }
  99
 100 protected:
 101   void AppendComboValue(ComboList &combo_list, int value) const;
 102 };
 103
 104 #endif