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Annotation of truecrypt/common/combo.c, revision 1.1.1.6

1.1.1.6 ! root        1: /* Legal Notice: The source code contained in this file has been derived from
        !             2:    the source code of Encryption for the Masses 2.02a, which is Copyright (c)
        !             3:    1998-99 Paul Le Roux and which is covered by the 'License Agreement for
        !             4:    Encryption for the Masses'. Modifications and additions to that source code
        !             5:    contained in this file are Copyright (c) 2004-2005 TrueCrypt Foundation and
        !             6:    Copyright (c) 2004 TrueCrypt Team, and are covered by TrueCrypt License 2.0
        !             7:    the full text of which is contained in the file License.txt included in
        !             8:    TrueCrypt binary and source code distribution archives.  */
        !             9: 
        !            10: #include "Tcdefs.h"
        !            11: #include "Combo.h"
        !            12: #include "Dlgcode.h"
        !            13: #include "Xml.h"
1.1       root       14: 
                     15: #include <time.h>
                     16: 
1.1.1.6 ! root       17: #define SIZEOF_MRU_LIST 20
1.1       root       18: 
                     19: void
                     20: AddComboItem (HWND hComboBox, char *lpszFileName)
                     21: {
                     22:        LPARAM nIndex;
                     23: 
                     24:        nIndex = SendMessage (hComboBox, CB_FINDSTRINGEXACT, (WPARAM) - 1,
                     25:                              (LPARAM) & lpszFileName[0]);
                     26: 
                     27:        if (nIndex == CB_ERR && *lpszFileName)
                     28:        {
1.1.1.6 ! root       29:                time_t lTime = time (NULL);
1.1       root       30:                nIndex = SendMessage (hComboBox, CB_ADDSTRING, 0, (LPARAM) & lpszFileName[0]);
                     31:                if (nIndex != CB_ERR)
                     32:                        SendMessage (hComboBox, CB_SETITEMDATA, nIndex, (LPARAM) lTime);
                     33:        }
                     34: 
                     35:        if (nIndex != CB_ERR && *lpszFileName)
                     36:                nIndex = SendMessage (hComboBox, CB_SETCURSEL, nIndex, 0);
                     37: 
                     38:        if (*lpszFileName == 0)
                     39:        {
                     40:                SendMessage (hComboBox, CB_SETCURSEL, (WPARAM) - 1, 0);
                     41:        }
                     42: }
                     43: 
                     44: 
                     45: LPARAM
                     46: MoveEditToCombo (HWND hComboBox)
                     47: {
                     48:        char szTmp[256] =
                     49:        {0};
                     50: 
                     51:        GetWindowText (hComboBox, szTmp, sizeof (szTmp));
                     52: 
                     53:        if (strlen (szTmp) > 0)
                     54:        {
                     55:                LPARAM nIndex = SendMessage (hComboBox, CB_FINDSTRINGEXACT, (WPARAM) - 1,
                     56:                                             (LPARAM) & szTmp[0]);
                     57:                if (nIndex == CB_ERR)
                     58:                {
1.1.1.6 ! root       59:                        time_t lTime = time (NULL);
1.1       root       60:                        nIndex = SendMessage (hComboBox, CB_ADDSTRING, 0, (LPARAM) & szTmp[0]);
                     61:                        if (nIndex != CB_ERR)
                     62:                                SendMessage (hComboBox, CB_SETITEMDATA, nIndex, (DWORD) lTime);
                     63:                }
                     64:                else
                     65:                {
1.1.1.6 ! root       66:                        time_t lTime = time (NULL);
1.1       root       67:                        SendMessage (hComboBox, CB_SETITEMDATA, nIndex, (DWORD) lTime);
                     68:                }
                     69: 
                     70:                return nIndex;
                     71:        }
                     72: 
                     73:        return SendMessage (hComboBox, CB_GETCURSEL, 0, 0);
                     74: }
                     75: 
                     76: int
                     77: GetOrderComboIdx (HWND hComboBox, int *nIdxList, int nElems)
                     78: {
                     79:        int x = (int) SendMessage (hComboBox, CB_GETCOUNT, 0, 0);
                     80:        if (x != CB_ERR)
                     81:        {
                     82:                int i, nHighIdx = CB_ERR;
1.1.1.6 ! root       83:                time_t lHighTime = -1;
1.1       root       84: 
                     85:                for (i = 0; i < x; i++)
                     86:                {
1.1.1.6 ! root       87:                        time_t lTime = SendMessage (hComboBox, CB_GETITEMDATA, (WPARAM) i, 0);
1.1       root       88:                        if (lTime > lHighTime)
                     89:                        {
                     90:                                int n;
                     91:                                for (n = 0; n < nElems; n++)
                     92:                                        if (nIdxList[n] == i)
                     93:                                                break;
                     94:                                if (n == nElems)
                     95:                                {
                     96:                                        lHighTime = lTime;
                     97:                                        nHighIdx = i;
                     98:                                }
                     99:                        }
                    100:                }
                    101: 
                    102:                return nHighIdx;
                    103:        }
                    104: 
                    105:        return CB_ERR;
                    106: }
                    107: 
                    108: LPARAM
                    109: UpdateComboOrder (HWND hComboBox)
                    110: {
                    111:        LPARAM nIndex;
                    112: 
                    113:        nIndex = SendMessage (hComboBox, CB_GETCURSEL, 0, 0);
                    114: 
                    115:        if (nIndex != CB_ERR)
                    116:        {
1.1.1.6 ! root      117:                time_t lTime = time (NULL);
1.1       root      118:                nIndex = SendMessage (hComboBox, CB_SETITEMDATA, (WPARAM) nIndex,
                    119:                                      (LPARAM) lTime);
                    120:        }
                    121: 
                    122:        return nIndex;
                    123: }
                    124: 
                    125: void
1.1.1.6 ! root      126: LoadCombo (HWND hComboBox)
1.1       root      127: {
1.1.1.6 ! root      128:        DWORD size;
        !           129:        char *history = LoadFile (GetConfigPath (FILE_HISTORY), &size);
        !           130:        char *xml = history;
        !           131:        char volume[MAX_PATH];
1.1       root      132: 
1.1.1.6 ! root      133:        if (xml == NULL) return;
1.1       root      134: 
1.1.1.6 ! root      135:        while (xml = XmlFindElement (xml, "volume"))
        !           136:        {
        !           137:                XmlNodeText (xml, volume, sizeof (volume));
        !           138:                AddComboItem (hComboBox, volume);
        !           139:                xml++;
1.1       root      140:        }
                    141: 
                    142:        SendMessage (hComboBox, CB_SETCURSEL, 0, 0);
                    143: 
1.1.1.6 ! root      144:        free (history);
1.1       root      145: }
                    146: 
                    147: void
1.1.1.6 ! root      148: DumpCombo (HWND hComboBox, int bClear)
1.1       root      149: {
1.1.1.6 ! root      150:        FILE *f;
1.1       root      151:        int i, nComboIdx[SIZEOF_MRU_LIST];
                    152: 
1.1.1.6 ! root      153:        if (bClear)
        !           154:        {
        !           155:                DeleteFile (GetConfigPath (FILE_HISTORY));
        !           156:                return;
        !           157:        }
        !           158: 
        !           159:        f = fopen (GetConfigPath (FILE_HISTORY), "w");
        !           160:        if (f == NULL) return;
        !           161: 
        !           162:        XmlWriteHeader (f);
        !           163:        fputs ("\n\t<history>", f);
        !           164: 
1.1       root      165:        /* combo list part:- get mru items */
                    166:        for (i = 0; i < SIZEOF_MRU_LIST; i++)
1.1.1.6 ! root      167:                nComboIdx[i] = GetOrderComboIdx (hComboBox, &nComboIdx[0], i);
1.1       root      168: 
                    169:        /* combo list part:- write out mru items */
                    170:        for (i = 0; i < SIZEOF_MRU_LIST; i++)
                    171:        {
1.1.1.6 ! root      172:                char szTmp[MAX_PATH] = { 0 };
        !           173:                 
        !           174:                if (SendMessage (hComboBox, CB_GETLBTEXTLEN, nComboIdx[i], 0) < sizeof (szTmp))
1.1       root      175:                        SendMessage (hComboBox, CB_GETLBTEXT, nComboIdx[i], (LPARAM) & szTmp[0]);
                    176: 
1.1.1.6 ! root      177:                if (szTmp[0] != 0)
        !           178:                        fprintf (f, "\n\t\t<volume>%s</volume>", szTmp);
1.1       root      179:        }
1.1.1.6 ! root      180: 
        !           181:        fputs ("\n\t</history>", f);
        !           182:        XmlWriteFooter (f);
        !           183:        fclose (f);
1.1       root      184: }
                    185: 
                    186: void
                    187: ClearCombo (HWND hComboBox)
                    188: {
                    189:        int i;
                    190:        for (i = 0; i < SIZEOF_MRU_LIST; i++)
                    191:        {
                    192:                SendMessage (hComboBox, CB_DELETESTRING, 0, 0);
                    193:        }
                    194: }
                    195: 
                    196: int
                    197: IsComboEmpty (HWND hComboBox)
                    198: {
                    199:        return SendMessage (hComboBox, CB_GETCOUNT, 0, 0) < 1;
                    200: }
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