src/Form/DataField/Time.hpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 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 "Base.hpp"
  28 #include "Time/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 protected:
  55   void SetValue(int _value) {
  56     if (_value == value)
  57       return;
  58
  59     value = _value;
  60     Modified();
  61   }
  62
  63 public:
  64   void SetMin(int _min) {
  65     min = _min;
  66   }
  67
  68   void SetMax(int _max) {
  69     max = _max;
  70   }
  71
  72   void SetStep(unsigned _step) {
  73     step = _step;
  74   }
  75
  76   void SetMaxTokenNumber(unsigned _max_tokens) {
  77     assert(max_tokens > 0 && max_tokens <= 4);
  78     max_tokens = _max_tokens;
  79   }
  80
  81   void Set(int _value) {
  82     value = _value;
  83   }
  84
  85   /* virtual methods from class DataField */
  86   virtual void Inc();
  87   virtual void Dec();
  88
  89   virtual int GetAsInteger() const {
  90     return value;
  91   }
  92
  93   virtual const TCHAR *GetAsString() const;
  94   virtual const TCHAR *GetAsDisplayString() const;
  95
  96   virtual void SetAsInteger(int _value) {
  97     SetValue(_value);
  98   }
  99
 100   virtual ComboList *CreateComboList() const;
 101   virtual void SetFromCombo(int data_field_index, TCHAR *value_string);
 102
 103 protected:
 104   void AppendComboValue(ComboList &combo_list, int value) const;
 105 };
 106
 107 #endif