/***********************************************************************************************************                                                uC/GUI*                        Universal graphic software for embedded applications**                       (c) Copyright 2002, Micrium Inc., Weston, FL*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH**              礐/GUI is protected by international copyright laws. Knowledge of the*              source code may not be used to write a similar product. This file may*              only be used in accordance with a license and should not be redistributed*              in any way. We appreciate your understanding and fairness.*----------------------------------------------------------------------File        : EditDecPurpose     : Edit decimal values---------------------------END-OF-HEADER------------------------------*/#include <string.h>#include "EDIT.h"#include "GUIDebug.h"#include "GUI_Protected.h"#include "EDIT_Private.h"#if GUI_WINSUPPORT/***********************************************************************        Defaults for config switches************************************************************************/#ifndef EDIT_DEC_DIGITONLY  #define EDIT_DEC_DIGITONLY     0#endif/***********************************************************************        static Helpers************************************************************************/static int _DecChar2Int(int Char) {  if ((Char >= '0') && (Char <= '9'))    return Char - '0';  return -1;}static void _UpdateBuffer(EDIT_Obj* pObj) {  char * s = (char*) WM_HMEM2Ptr(pObj->hpText);  if (pObj->Flags == GUI_EDIT_SIGNED) {    I32 Result = GUI_AddSign(pObj->CurrentValue, &s);    GUI_AddDecShift(Result, pObj->MaxLen - 1, pObj->NumDecs, &s);  } else {    GUI_AddDecShift(pObj->CurrentValue, pObj->MaxLen, pObj->NumDecs, &s);  }}static void _EditDec(int Digit, EDIT_Obj* pObj, EDIT_Handle hObj) {  I32 Result = 0;  int i, Pos = 0;  char * s = (char*) WM_HMEM2Ptr(pObj->hpText);  for (i = 0; i < pObj->MaxLen; i++) {    int Index = pObj->MaxLen - i - 1;    if (Index == pObj->CursorPos) {      Result += GUI_Pow10[Pos++] * Digit;    } else {      char c = *(s + Index);      int Value = _DecChar2Int(c);      if (Value >= 0) {        Result += GUI_Pow10[Pos++] * Value;      }      if (c == '-') {        Result *= -1;      }    }  }  EDIT_SetValue(hObj, Result);}static char _GetCurrentChar(EDIT_Obj* pObj) {  return *((char*) WM_HMEM2Ptr(pObj->hpText) + pObj->CursorPos);}#if EDIT_DEC_DIGITONLYstatic int GetCurrentDigit(EDIT_Obj* pObj) {  return _DecChar2Int(_GetCurrentChar(pObj));}#endifstatic void _MakePositive(EDIT_Obj* pObj, EDIT_Handle hObj) {  if ((I32)pObj->CurrentValue < 0) {    EDIT_SetValue(hObj, (I32)pObj->CurrentValue * -1);  }}static void _MakeNegative(EDIT_Obj* pObj, EDIT_Handle hObj) {  if ((I32)pObj->CurrentValue > 0) {    EDIT_SetValue(hObj, (I32)pObj->CurrentValue * -1);  }}static void _SwapSign(EDIT_Obj* pObj, EDIT_Handle hObj) {  if ((I32)pObj->CurrentValue > 0)    _MakeNegative(pObj, hObj);  else    _MakePositive(pObj, hObj);}static void _IncrementCursor(EDIT_Obj* pObj) {  if (pObj->CursorPos < (pObj->MaxLen - 1))    pObj->CursorPos++;  if (_GetCurrentChar(pObj) == '.') {    if (pObj->CursorPos < (pObj->MaxLen - 1)) {      pObj->CursorPos++;    } else {      pObj->CursorPos--;    }  }}#if !EDIT_DEC_DIGITONLYstatic void _AddPosition(EDIT_Obj* pObj, EDIT_Handle hObj, int Sign) {  int Pos;  I32 v;  v = Sign;  Pos = pObj->MaxLen - pObj->CursorPos-1;  if (pObj->NumDecs && (Pos > pObj->NumDecs)) {    Pos--;  }  while (Pos--) {    v *= 10;  }  EDIT_SetValue(hObj, (I32)pObj->CurrentValue + v);}#endif/***********************************************************************             Handle input************************************************************************/static void _AddKeyDec(EDIT_Obj* pObj, EDIT_Handle hObj, int Key) {  char c;  if (pObj) {    switch (Key) {      case '+':        if (pObj->CursorPos == 0) {          _MakePositive(pObj, hObj);          _IncrementCursor(pObj);        }        break;      case '-':        if (pObj->CursorPos == 0) {          _MakeNegative(pObj, hObj);          _IncrementCursor(pObj);        }        break;      #if EDIT_DEC_DIGITONLY        case GUI_KEY_UP:          c = _GetCurrentChar(pObj);          if ((c == '-') || (c == '+')) {            _SwapSign(pObj, hObj);          } else {            int Digit = GetCurrentDigit(pObj) + 1;            if (Digit > 9)              Digit = 0;            _EditDec(Digit, pObj, hObj);          }          break;        case GUI_KEY_DOWN:          c = _GetCurrentChar(pObj);          if ((c == '-') || (c == '+')) {            _SwapSign(pObj, hObj);          } else {            int Digit = GetCurrentDigit(pObj) - 1;            if (Digit < 0)              Digit = 9;            _EditDec(Digit, pObj, hObj);          }          break;      #else        case GUI_KEY_UP:          c = _GetCurrentChar(pObj);          if ((c == '-') || (c == '+')) {            _SwapSign(pObj, hObj);          } else {            _AddPosition(pObj, hObj, 1);          }          break;        case GUI_KEY_DOWN:          c = _GetCurrentChar(pObj);          if ((c == '-') || (c == '+')) {            _SwapSign(pObj, hObj);          } else {            _AddPosition(pObj, hObj, -1);          }          break;      #endif      case GUI_KEY_RIGHT:        _IncrementCursor(pObj);        break;      case GUI_KEY_LEFT:        if (pObj->CursorPos > 0)          pObj->CursorPos--;        if (_GetCurrentChar(pObj) == '.') {          if (pObj->CursorPos > 0) {            pObj->CursorPos--;          } else {            pObj->CursorPos++;          }        }        break;      default:        {          char c = _GetCurrentChar(pObj);          if ((c != '-') && (c != '+')) {            int Digit = _DecChar2Int(Key);            if (Digit >= 0) {              _EditDec(Digit, pObj, hObj);              _IncrementCursor(pObj);            }          }        }        break;    }  }  _UpdateBuffer(pObj);}/***********************************************************************             Exported routines************************************************************************/void EDIT_SetDecMode(EDIT_Handle hEdit, I32 Value, I32 Min, I32 Max, int Shift, U8 Flags) {  EDIT_Obj* pObj;  WM_LOCK();  if (hEdit) {    pObj = EDIT_H2P(hEdit);    pObj->pfAddKeyEx    = _AddKeyDec;    pObj->pfUpdateBufer = _UpdateBuffer;    pObj->CurrentValue  = Value;    pObj->CursorPos     = 0;    pObj->Min           = Min;    pObj->Max           = Max;    pObj->NumDecs       = Shift;    pObj->Flags         = Flags;    pObj->EditMode      = GUI_EDIT_MODE_OVERWRITE;    _UpdateBuffer(pObj);    if (_GetCurrentChar(pObj) == '.') {      pObj->CursorPos++;    }  }  WM_UNLOCK();}#else  /* avoid empty object files */void EditDec_C(void);#endif /* GUI_WINSUPPORT */