language.c

/*
    This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
    Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.net
    Copyright (C) 2018-2024 Daniel Marschall, ViaThinkSoft

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "ff.h"

void strcpy_advance_id(TCHAR** str, int msgid) {
    int len = FF_GetMsg(*str, msgid);
    *str += len;
}

// Attention: No bounds checking!
int FF_GetMsg(TCHAR* ret, int MsgId) {
#ifdef WIN_ENV

#ifdef UNICODE
    TCHAR* szMsg;
    int len;
    len = LoadString(hDllInstance, MsgId, (LPTSTR)&szMsg, 0);
    if (len == 0) return 0; // resource not found
    if (ret != NULL) {
        LoadString(hDllInstance, MsgId, ret, len + 1);
    }
    return len;
#else
    // LoadStringA is either broken or badly documented!
    // The documentation says that you receive a read-only string reference as well as the length as return value if cchBufferMax==0.
    // Reality shows that return value is -1 if cchBufferMax==0.
    // https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/8d8c5382-1867-460a-a18f-70dc425ffe2f/loadstring-not-behaving-as-documented?forum=windowssdk
    // We cannot receive a read-only memory using LoadStringA, because the WinAPI needs to do a Unicode-to-ANSI convertion,
    // so we must define some max limit.
    TCHAR szMsg[4096];
    int len;
    len = LoadString(hDllInstance, MsgId, (LPTSTR)&szMsg, 4096);
    if (len == 0) return 0; // resource not found
    if (ret != NULL) {
        LoadString(hDllInstance, MsgId, ret, len + 1);
    }
    return len;
#endif

#else
	Str255 msg;
	GetIndString(msg, 1000, MsgId);
    myp2cstrcpy(ret, msg);
#endif
}

/**
Attention: Requires FF_GetMsg_Free(), otherwise memory is leaked
*/
TCHAR* FF_GetMsg_Cpy(int MsgId) {
#ifdef WIN_ENV
    int len;
    TCHAR* ret;
    len = FF_GetMsg(NULL, MsgId);
    if (len == 0) return NULL; // resource not found
    ret = (TCHAR*)malloc((len+1) * sizeof(TCHAR));
    if (ret == NULL) return NULL;
    LoadString(hDllInstance, MsgId, ret, len+1);
    return ret;
#else
    Str255 msg;
    TCHAR* ret;
    ret = (TCHAR*)malloc((len + 1) * sizeof(TCHAR));
    GetIndString(msg, 1000, MsgId);
    myp2cstrcpy(ret, msg);
    return ret;
#endif
}

void FF_GetMsg_Free(TCHAR* str) {
    free(str);
}