teraterm/teraterm/teraterm.cpp

/*
 * Copyright (C) 1994-1998 T. Teranishi
 * (C) 2006-2020 TeraTerm Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/* TERATERM.EXE, main */

#include "teraterm_conf.h"

#include <stdio.h>
#include <crtdbg.h>
#include <io.h>                 // for access()
#include <windows.h>
#include <htmlhelp.h>
#include "teraterm.h"
#include "tttypes.h"
#include "commlib.h"
#include "ttwinman.h"
#include "buffer.h"
#include "vtterm.h"
#include "vtwin.h"
#include "clipboar.h"
#include "ttftypes.h"
#include "filesys.h"
#include "telnet.h"
#include "tektypes.h"
#include "tekwin.h"
#include "ttdde.h"
#include "keyboard.h"
#include "dllutil.h"
#include "compat_win.h"
#include "compat_w95.h"
#include "dlglib.h"
#include "teraterml.h"
#include "unicode_test.h"
#if UNICODE_INTERNAL_BUFF
#include "sendmem.h"
#endif
#include "layer_for_unicode.h"

#if defined(_DEBUG) && defined(_MSC_VER)
#define new ::new(_NORMAL_BLOCK, __FILE__, __LINE__)
#endif

static BOOL AddFontFlag;
static wchar_t TSpecialFont[MAX_PATH];
static CVTWindow* pVTWin;
static DWORD HtmlHelpCookie;

static void LoadSpecialFont()
{
        if (IsExistFontA("Tera Special", SYMBOL_CHARSET, TRUE)) {
                // ���������������������[�h������
                return;
        }

        if (_GetModuleFileNameW(NULL, TSpecialFont, _countof(TSpecialFont)) == 0) {
                AddFontFlag = FALSE;
                return;
        }
        *wcsrchr(TSpecialFont, L'\\') = 0;
        wcscat_s(TSpecialFont, L"\\TSPECIAL1.TTF");

        // teraterm.exe�������L�����t�H���g�������B
        // remove�����������I��������OS������������
        int r = _AddFontResourceExW(TSpecialFont, FR_PRIVATE, NULL);
        if (r == 0) {
                // AddFontResourceEx() ���g����������
                // �V�X�e���S�����g�����t�H���g������
                // remove��������OS������������������
                r = _AddFontResourceW(TSpecialFont);
        }
        if (r != 0) {
                AddFontFlag = TRUE;
        }
}

static void UnloadSpecialFont()
{
        if (!AddFontFlag) {
                return;
        }
        int r = _RemoveFontResourceExW(TSpecialFont, FR_PRIVATE, NULL);
        if (r == 0) {
                _RemoveFontResourceW(TSpecialFont);
        }
}

static void init()
{
        DLLInit();
        WinCompatInit();
        LoadSpecialFont();
}

// Tera Term main engine
static BOOL OnIdle(LONG lCount)
{
        static int Busy = 2;
        int nx, ny;
        BOOL Size;

        if (lCount==0) Busy = 2;

        if (cv.Ready)
        {
                /* Sender */
                CommSend(&cv);

                /* Parser */
                if ((cv.HLogBuf!=NULL) && (cv.LogBuf==NULL))
                        cv.LogBuf = (PCHAR)GlobalLock(cv.HLogBuf);

                if ((cv.HBinBuf!=NULL) && (cv.BinBuf==NULL))
                        cv.BinBuf = (PCHAR)GlobalLock(cv.HBinBuf);

                if ((TelStatus==TelIdle) && cv.TelMode)
                        TelStatus = TelIAC;

                if (TelStatus != TelIdle)
                {
                        ParseTel(&Size,&nx,&ny);
                        if (Size) {
                                LockBuffer();
                                ChangeTerminalSize(nx,ny);
                                UnlockBuffer();
                        }
                }
                else {
                        int Change;
                        if (cv.ProtoFlag) Change = ProtoDlgParse();
                        else {
                                switch (ActiveWin) {
                                case IdVT:
                                        Change = pVTWin->Parse();
                                        // TEK window���A�N�e�B�u���� pause ���g�����ACPU�g�p��100%������
                                        // ���������b�������B(2006.2.6 yutaka)
                                        // �����������������A�R���e�L�X�g�X�C�b�`�����������B(2006.3.20 yutaka)
                                        Sleep(0);
                                        break;

                                case IdTEK:
                                        if (pTEKWin != NULL) {
                                                Change = ((CTEKWindow*)pTEKWin)->Parse();
                                                // TEK window���A�N�e�B�u���� pause ���g�����ACPU�g�p��100%������
                                                // ���������b�������B(2006.2.6 yutaka)
                                                Sleep(1);
                                        }
                                        else {
                                                Change = IdVT;
                                        }
                                        break;

                                default:
                                        Change = 0;
                                }

                                switch (Change) {
                                        case IdVT:
                                                VTActivate();
                                                break;
                                        case IdTEK:
                                                pVTWin->OpenTEK();
                                                break;
                                }
                        }
                }

                if (cv.LogBuf!=NULL)
                {
                        if (FileLog) {
                                LogToFile();
                        }
                        GlobalUnlock(cv.HLogBuf);
                        cv.LogBuf = NULL;
                }

                if (cv.BinBuf!=NULL)
                {
                        if (BinLog) {
                                LogToFile();
                        }
                        GlobalUnlock(cv.HBinBuf);
                        cv.BinBuf = NULL;
                }
                if (DDELog && AdvFlag) {
                        DDEAdv();
                }

                /* Talker */
                switch (TalkStatus) {
                case IdTalkCB:
                        CBSend();
                        break; /* clip board */
                case IdTalkFile:
                        FileSend();
                        break; /* file */
                case IdTalkSendMem:
                        SendMemContinuously();
                        break;
                default:
                        break;
                }

                /* Receiver */
                if (DDELog && DDEGetCount() > 0) {
                        // ���O�o�b�t�@������DDE�N���C�A���g�����������������������A
                        // TCP�p�P�b�g�����M���s�������B
                        // �A���������M���s�����A���O�o�b�t�@�����E���h���r�������������M���f�[�^��
                        // �������������������\���������B(2007.6.14 yutaka)

                } else {
                        CommReceive(&cv);
                }

        }

        if (cv.Ready &&
            (cv.RRQ || (cv.OutBuffCount>0) || (cv.InBuffCount>0) || (cv.FlushLen>0) || (cv.LCount>0) || (cv.BCount>0) || (DDEGetCount()>0)) ) {
                Busy = 2;
        }
        else {
                Busy--;
        }

        return (Busy>0);
}

static HWND main_window;
HWND GetHWND()
{
        return main_window;
}

static HWND hModelessDlg;

void AddModelessHandle(HWND hWnd)
{
        hModelessDlg = hWnd;
}

void RemoveModelessHandle(HWND hWnd)
{
        (void)hWnd;
        hModelessDlg = 0;
}

static UINT nMsgLast;
static POINT ptCursorLast;

/**
 *      idle��������������������
 */
static BOOL IsIdleMessage(const MSG* pMsg)
{
        if (pMsg->message == WM_MOUSEMOVE ||
                pMsg->message == WM_NCMOUSEMOVE)
        {
                if (pMsg->message == nMsgLast &&
                        pMsg->pt.x == ptCursorLast.x &&
                        pMsg->pt.y == ptCursorLast.y)
                {       // �������u��������idle������������
                        return FALSE;
                }

                ptCursorLast = pMsg->pt;
                nMsgLast = pMsg->message;
                return TRUE;
        }

        if (pMsg->message == WM_PAINT ||
                pMsg->message == 0x0118/*WM_SYSTIMER*/)
        {
                return FALSE;
        }

        return TRUE;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPreInst,
                   LPSTR lpszCmdLine, int nCmdShow)
{
        (void)hPreInst;
        (void)lpszCmdLine;
        (void)nCmdShow;
#ifdef _DEBUG
        _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
#endif

        _HtmlHelpW(NULL, NULL, HH_INITIALIZE, (DWORD_PTR)&HtmlHelpCookie);
        init();
        hInst = hInstance;
        CVTWindow *m_pMainWnd = new CVTWindow(hInstance);
        pVTWin = m_pMainWnd;
        main_window = m_pMainWnd->m_hWnd;
        // [Tera Term]�Z�N�V������DLG_SYSTEM_FONT�������������Z�b�g����
        SetDialogFont(ts.DialogFontName, ts.DialogFontPoint, ts.DialogFontCharSet,
                                  ts.UILanguageFile, "Tera Term", "DLG_SYSTEM_FONT");

        BOOL bIdle = TRUE;      // idle������?
        LONG lCount = 0;
        MSG msg;
        for (;;) {
                // idle���������b�Z�[�W����������
                while (bIdle) {
                        if (::PeekMessage(&msg, NULL, NULL, NULL, PM_NOREMOVE) != FALSE) {
                                // ���b�Z�[�W����������
                                break;
                        }

                        const BOOL continue_idle = OnIdle(lCount++);
                        if (!continue_idle) {
                                // FALSE��������������idle�������s�v
                                bIdle = FALSE;
                                break;
                        }
                }

                // ���b�Z�[�W����������������������
                for(;;) {
                        // ���b�Z�[�W���������������AGetMessage()���u���b�N��������������
                        if (::GetMessage(&msg, NULL, 0, 0) == FALSE) {
                                // WM_QUIT
                                goto exit_message_loop;
                        }

                        if (hModelessDlg == 0 ||
                                ::IsDialogMessage(hModelessDlg, &msg) == FALSE)
                        {
                                bool message_processed = false;

                                if (m_pMainWnd->m_hAccel != NULL) {
                                        if (!MetaKey(ts.MetaKey)) {
                                                // matakey����������������
                                                if (::TranslateAccelerator(m_pMainWnd->m_hWnd , m_pMainWnd->m_hAccel, &msg)) {
                                                        // �A�N�Z�����[�^�[�L�[����������
                                                        message_processed = true;
                                                }
                                        }
                                }

                                if (!message_processed) {
                                        ::TranslateMessage(&msg);
                                        ::DispatchMessage(&msg);
                                }
                        }

                        // idle������������?
                        if (IsIdleMessage(&msg)) {
                                bIdle = TRUE;
                                lCount = 0;
                        }

                        if (::PeekMessage(&msg, NULL, NULL, NULL, PM_NOREMOVE) == FALSE) {
                                // ���b�Z�[�W������������
                                break;
                        }
                }
        }
exit_message_loop:

        delete m_pMainWnd;
        m_pMainWnd = NULL;

        _HtmlHelpW(NULL, NULL, HH_CLOSE_ALL, 0);
        _HtmlHelpW(NULL, NULL, HH_UNINITIALIZE, HtmlHelpCookie);

        UnloadSpecialFont();
        DLLExit();

    return (int)msg.wParam;
}