nel/tools/logic/logic_editor_dll/NumEdit.cpp

   1 // NumEdit.cpp : implementation file
   2 //
   3
   4 #include "stdafx.h"
   5 #include "logic_editor.h"
   6 #include "NumEdit.h"
   7
   8 #ifdef _DEBUG
   9 #define new DEBUG_NEW
  10 #undef THIS_FILE
  11 static char THIS_FILE[] = __FILE__;
  12 #endif
  13
  14 /////////////////////////////////////////////////////////////////////////////
  15 // CNumEdit
  16
  17 CNumEdit::CNumEdit()
  18 {
  19 }
  20
  21 CNumEdit::~CNumEdit()
  22 {
  23 }
  24
  25
  26 BEGIN_MESSAGE_MAP(CNumEdit, CEdit)
  27         //{{AFX_MSG_MAP(CNumEdit)
  28         ON_WM_CHAR()
  29         //}}AFX_MSG_MAP
  30         ON_MESSAGE(WM_PASTE, OnPaste)
  31 END_MESSAGE_MAP()
  32
  33 /////////////////////////////////////////////////////////////////////////////
  34 // CNumEdit message handlers
  35
  36 void CNumEdit::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
  37 {
  38         static const CString Holder = "`~!@#$%^&*()_+|=\\qwertyuiop[]asdfghjkl;'zxcvbnm,/QWERTYUIOP{}ASDFGHJKL:/ZXCVBNM<>?/";
  39
  40         // 1st pass on unwanted characters
  41         if (Holder.Find(nChar) != -1)
  42                 return;
  43
  44
  45         // length, selection info
  46         int num_typed = CEdit::GetWindowTextLength();
  47         int start_char, end_char;
  48         GetSel(start_char, end_char);
  49
  50         // current CEdit text
  51         CString temp_str;
  52         GetWindowText(temp_str);
  53
  54         // state variables
  55         bool  bSignTyped   = false;
  56         bool  bPeriodTyped = false;
  57         TCHAR temp_char;
  58
  59         // most of the work done in here..
  60         for (int i = 0 ; i < temp_str.GetLength(); ++i)
  61         {
  62                 // selected chars don't count..
  63                 if ((i>=start_char) && (i<end_char))
  64                         continue;
  65
  66                 temp_char = temp_str[i];
  67
  68                 if ((temp_char == '+') || (temp_char == '-')) {
  69                         bSignTyped = true;
  70                 } else if (temp_char == '.') {
  71                         bPeriodTyped = true;
  72                 }
  73         }
  74
  75         // allow sign only once (first char)
  76         if ((nChar == '+') || (nChar == '-')) {
  77                 if (bSignTyped || (start_char != 0))
  78                         return;
  79         }
  80
  81         // allow period only once
  82         if ((nChar == '.') && bPeriodTyped)
  83                 return;
  84
  85
  86         CString old_str = temp_str;
  87         CEdit::OnChar(nChar, nRepCnt, nFlags);
  88
  89         // check validity (if the user inserted numbers before the sign for example)
  90         GetWindowText(temp_str);
  91         if ( (temp_str.GetLength() > 1) && ( (temp_str[1] == '-') || (temp_str[1] == '+') ) )
  92         {
  93                 this->SetWindowText( old_str );
  94         }
  95 }
  96
  97
  98
  99 LRESULT CNumEdit::OnPaste(WPARAM /*wParam*/, LPARAM /*lParam*/)
 100 {
 101         static BOOL called = FALSE;
 102
 103         CString old, temp;
 104         GetWindowText( old );
 105
 106         /// \todo Malkav : handle pasting numeric data !!!
 107
 108
 109         if (::IsClipboardFormatAvailable(CF_TEXT))
 110         {
 111 /*
 112                 char * str=(char*)GetClipboardData(CF_TEXT);
 113                 temp = old + CString(*str);;
 114 */
 115         }
 116
 117         // check validity of new text in the edit window
 118 /*
 119         if (checkValidity() == FALSE)
 120         {
 121                 SetWindowText(old);
 122         }
 123 */
 124         return 0;
 125 }
 126
 127
 128
 129 BOOL CNumEdit::checkValidity()
 130 {
 131         CString temp;
 132         GetWindowText( temp );
 133
 134         BOOL bSign = FALSE;
 135         BOOL bPeriod = FALSE;
 136
 137         const int size = temp.GetLength();
 138         for ( int i = 0 ; i < size ; ++i)
 139         {
 140                 if (temp[i] <0 && temp[i]>9)
 141                 {
 142                         return FALSE;
 143                 }
 144                 else if (temp[i] == '-' || temp[i] =='+')
 145                 {
 146                         if ( (i != 0) || bSign == TRUE)
 147                                 return FALSE;
 148                         else
 149                                 bSign = TRUE;
 150                 }
 151                 else if (temp[i] == '.')
 152                 {
 153                         if (bPeriod == TRUE)
 154                                 return FALSE;
 155                         else
 156                                 bPeriod = TRUE;
 157                 }
 158         }
 159
 160         return TRUE;
 161 }
 162
 163