ファイル名:text.h

#define IDM_OPEN 101
#define IDM_EXIT 102
#define IDM_TAB8 103
#define IDM_TAB4 104
#define IDM_TAB2 105
#define IDM_TAB1 106
#define IDM_LINE 107
#define IDM_ABOUT 108

ファイル名:text.c

#pragma resource "text.res"
#define STRICT
char buf[512];
#include <windows.h>
#include <commdlg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "text.h"
#define APPNAME "TEXTVIEW"
#ifdef WIN32
	#define huge
	//#define _fnthctype nthctype
	#define fmalloc(size) malloc(size)
	#define ffree(ptr)    free(ptr)
	#define MAXPATH 260
	#define MAXNAME 256
#else
	#include <io.h>/*filelength()*/
	#define fmalloc(size) MAKELONG(0,GlobalAlloc(GMEM_FIXED,size))
	#define ffree(ptr)    GlobalFree((HGLOBAL)HIWORD(ptr))
	#define MAXPATH 80
	#define MAXNAME 13
#endif
WORD Version; BOOL NT;
static HWND hwndApp;
static HINSTANCE hInstApp;
static char *szAppName="textview";
static HMENU hmenu;
static char huge *textbuf;
#ifdef WIN32
	#define MAXLINE 65535
#else
	#define MAXLINE 2000
#endif
static char far *linebuf[MAXLINE];
static int linecount;
static int cyClient, cyChar;
static int cxClient, cxChar;
static int pitch;
static int tab=8;

void SetTitleBar(HWND hwnd, char *name){
	if (name==NULL) sprintf(buf, APPNAME":(無題)");
	else            sprintf(buf, APPNAME":%s", name);
	SetWindowText(hwnd, buf);
}
void readtext(HWND hwnd, char *path, char *name){
	unsigned long textsize, readsize;
	HFILE hfile;
	hfile=_lopen(path, OF_READ | OF_SHARE_DENY_WRITE);
	if (hfile==HFILE_ERROR) {
		MessageBox(hwnd, "オープンできません", szAppName, MB_OK);
		return;
	}
	if (textbuf) ffree(textbuf), textbuf=NULL, linebuf[0]=NULL;
#ifdef WIN32
	{
	WIN32_FIND_DATA ffd; HANDLE h;
	h=FindFirstFile(path, &ffd);
	if (h==INVALID_HANDLE_VALUE) {
		MessageBox(hwnd, "ファイルが見つからない", szAppName, MB_OK);
		return;
	}
	FindClose(h);
	textsize=ffd.nFileSizeLow+ffd.nFileSizeHigh*65536;
	}
#else
	textsize=filelength(hfile);
#endif
	textbuf=(LPSTR)fmalloc(textsize+1);
	if (textbuf==NULL) {
		char buf[100];
		linebuf[0]=NULL; linecount=0;
		sprintf(buf, "メモリ不足 %d", textsize);
		MessageBox(hwnd, buf, szAppName, MB_OK);
		return;
	}
	readsize=_hread(hfile, textbuf, textsize);
#ifndef WIN32
	if (readsize>65535LU) readsize=65535LU;
#endif
	if (readsize>textsize) textbuf[0]=0, linebuf[0]=NULL; /* HFILE_ERROR */
	else                   textbuf[readsize]=0/*, textsize=readsize*/;
	_lclose(hfile);
	//MessageBox(NULL, "success", "read", MB_OK);
	if (textbuf[0]){
		char far *p; int i=0;
		linebuf[0]=textbuf;
		for(;;){
			p=_fstrchr(linebuf[i], '\n');
			i++; if (i==MAXLINE) break;
			if (p==NULL) {
				linebuf[i]=NULL;
				break;
			}
			*p=0;
			if (p!=linebuf[i-1])
				if (*(p-1)=='\r') *(p-1)=0;
			if (*(p+1)==0) {linebuf[i]=NULL; break;}
			linebuf[i]=p+1;
		}
		linecount=i;
	}
	SetTitleBar(hwnd, name);
	InvalidateRect(hwnd, NULL, TRUE);
}
static void tabmenucheck(int i){
	if (tab==8) CheckMenuItem(hmenu, IDM_TAB8, i);
	if (tab==4) CheckMenuItem(hmenu, IDM_TAB4, i);
	if (tab==2) CheckMenuItem(hmenu, IDM_TAB2, i);
	if (tab==1) CheckMenuItem(hmenu, IDM_TAB1, i);
}
#ifdef __cplusplus
extern "C"
#endif
long FAR PASCAL MainWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){
	static OPENFILENAME ofn;
	static char achFilePath[MAXPATH], achFileTitle[MAXNAME]="noname.txt";
	int i;
	HDC	hdc; RECT rc;
	PAINTSTRUCT   ps;
	TEXTMETRIC	tm;
	HFONT hfont, hfontOld;
	int fuFormat;

	switch (message) {
	case WM_CREATE:
		hdc = GetDC (hwnd);
		GetTextMetrics (hdc, &tm);
		cxChar = tm.tmAveCharWidth;
		cyChar = tm.tmHeight + tm.tmExternalLeading;
		pitch=cyChar*24/20;
		ReleaseDC (hwnd, hdc);
		return 0;
	case WM_SIZE:
		cxClient = LOWORD (lParam);
		cyClient = HIWORD (lParam);
		return 0;
	case WM_COMMAND:
		switch((WORD)wParam) {/*コントロールID*/
		case IDM_OPEN:
			memset(&ofn, 0, sizeof(OPENFILENAME));
			ofn.lStructSize = sizeof(OPENFILENAME);
			ofn.hwndOwner = hwnd;
			ofn.lpstrFilter = "テキスト(*.TXT)\0*.TXT\0全ファイル(*.*)\0*.*\0";
			ofn.lpstrCustomFilter = NULL;
			ofn.nFilterIndex = 1;
			achFilePath[0] = 0;
			ofn.lpstrFile = (LPSTR)achFilePath;
			ofn.nMaxFile = sizeof(achFilePath);
			ofn.lpstrFileTitle = (LPSTR)achFileTitle;
			ofn.nMaxFileTitle = sizeof(achFileTitle);
			ofn.lpstrInitialDir = NULL;
			ofn.lpstrTitle = NULL;	//ofn.lpstrTitle = "ファイルを開く";
			ofn.lpstrDefExt = NULL;
			ofn.Flags = OFN_HIDEREADONLY | OFN_FILEMUSTEXIST;
			if(GetOpenFileName((LPOPENFILENAME)&ofn))
				readtext(hwnd, achFilePath, achFileTitle);
			return 0;
		case IDM_EXIT:
			SendMessage(hwnd, WM_CLOSE, 0, 0L);
			return 0;
		case IDM_TAB8:
			tabmenucheck(MF_UNCHECKED);
			tab=8; InvalidateRect(hwnd, NULL, TRUE);
			tabmenucheck(MF_CHECKED);
			return 0;
		case IDM_TAB4:
			tabmenucheck(MF_UNCHECKED);
			tab=4; InvalidateRect(hwnd, NULL, TRUE);
			tabmenucheck(MF_CHECKED);
			return 0;
		case IDM_TAB2:
			tabmenucheck(MF_UNCHECKED);
			tab=2; InvalidateRect(hwnd, NULL, TRUE);
			tabmenucheck(MF_CHECKED);
			return 0;
		case IDM_TAB1:
			tabmenucheck(MF_UNCHECKED);
			tab=1; InvalidateRect(hwnd, NULL, TRUE);
			tabmenucheck(MF_CHECKED);
			return 0;
		case IDM_LINE:
			if (cyChar==pitch) pitch=cyChar*24/20, CheckMenuItem(hmenu, IDM_LINE, MF_CHECKED);
			else               pitch=cyChar,       CheckMenuItem(hmenu, IDM_LINE, MF_UNCHECKED);
			InvalidateRect(hwnd, NULL, TRUE);
			return 0;
		case IDM_ABOUT:
		#ifdef WIN32
			strcpy(buf, "Text Viewer 32bit版\nVersion 0.00\nCopyright (c)のぐー");
		#else
			strcpy(buf, "Text Viewer 16bit版\nVersion 0.00\nCopyright (c)のぐー");
		#endif
			MessageBox(hwnd, buf, "About", MB_OK);
			return 0;
		}
		break;
	case WM_PAINT:
		hdc = BeginPaint (hwnd, &ps);
		hfont = (HFONT)GetStockObject(OEM_FIXED_FONT);
		hfontOld=(HFONT)SelectObject(hdc,hfont);
		SetTextColor(hdc, GetSysColor(COLOR_WINDOWTEXT));
		SetBkColor(hdc, GetSysColor(COLOR_WINDOW));
		//if (tab==8) fuFormat = DT_SINGLELINE|DT_EXPANDTABS|DT_NOPREFIX;
		//else        fuFormat = DT_SINGLELINE|DT_EXPANDTABS|DT_TABSTOP|(tab<<8);
		fuFormat = tab*cxChar;//TabbedTextOut()を使うとき
		rc.left = cxChar; rc.right=cxClient;
		for (i = 0; i < linecount; i++) {
			rc.top = pitch * (0.25 + i);
			rc.bottom = rc.top+pitch;
			//DrawText(hdc, linebuf[i], _fstrlen(linebuf[i]), &rc, fuFormat);
			//TextOut(hdc, rc.left, rc.top, linebuf[i], _fstrlen(linebuf[i]));
			TabbedTextOut(hdc, rc.left, rc.top, linebuf[i], _fstrlen(linebuf[i]),
				1, &fuFormat, rc.left);
		}
		SelectObject(hdc, hfontOld);
		//sprintf(buf, "%d %d %d", cyChar, cxChar, linecount);
		//TextOut (hdc, 0, 0, buf, lstrlen (buf));
		EndPaint (hwnd, &ps);
		return 0;
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	}
	return DefWindowProc(hwnd, message, wParam, lParam);
}
BOOL InitApplication(HINSTANCE hInstance){
	WNDCLASS  wc;
	wc.style			= 0;
	wc.lpfnWndProc		= MainWndProc;
	wc.cbClsExtra		= 0;
	wc.cbWndExtra		= 0;
	wc.hInstance		= hInstance;
	//wc.hIcon			= LoadIcon(NULL, IDI_APPLICATION);
	wc.hIcon			= LoadIcon(hInstance, "TextIcon");
	wc.hCursor			= LoadCursor(NULL, IDC_ARROW);
	//wc.hbrBackground	= (HBRUSH)GetStockObject(WHITE_BRUSH);
	wc.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wc.lpszMenuName		=  "TextMenu";
	wc.lpszClassName	= "TextWClass";
	return RegisterClass(&wc);
}
void GetWindowsVersion(void){
	//	0x300: Windows 3.00
	//	0x30a: Windows 3.10
	//	0x30b: Windows 3.11
	//	0x35f: Windows 95 (16bit) (3.95)
	//	0x400: Windows 95 (32bit) (4.00)
	//	0x362: Windows 98 (16bit) (3.98)
	//	0x40a: Windows 98 (32bit) (4.10)
	WORD DosVersion = HIWORD(GetVersion());
	Version = LOWORD(GetVersion());
	Version = (WORD)((LOBYTE(Version)<<8) + HIBYTE(Version));
#ifdef WIN32
	if (DosVersion & 0x8000) NT=0; else NT=1;
#else
	if (Version==0x35f && DosVersion >=0x70a) Version+=3;
#endif
}
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow){
	GetWindowsVersion();
	hwndApp = CreateWindow(
		"TextWClass", APPNAME, WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
		NULL, NULL, hInstance, NULL);
	if (!hwndApp) return FALSE;
	ShowWindow(hwndApp, nCmdShow);
	UpdateWindow(hwndApp);
	hmenu=GetMenu(hwndApp);
	tabmenucheck(MF_CHECKED);
	if (cyChar!=pitch) CheckMenuItem(hmenu, IDM_LINE, MF_CHECKED);
	return TRUE;
}
int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow){
	MSG msg;
	HACCEL hAccel=LoadAccelerators(hInstance, "TextAccel");
	hInstApp=hInstance;
	if (!hPrevInstance)
		if (!InitApplication(hInstance))
			return FALSE;
	if (!InitInstance(hInstance, nCmdShow))
		return FALSE;
	while (GetMessage(&msg,	NULL, 0, 0)) {
		if (!TranslateAccelerator(hwndApp, hAccel, &msg)) {
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}
	return msg.wParam;
}

ファイル名:text.rc

//#include <windows.h>
#include "text.h"
TextIcon  ICON "text.ICO"
TextMenu MENU
BEGIN
	POPUP        "ファイル(\036F\037フ)"
	BEGIN
		MENUITEM "開く(\036O\037ヒ)...", IDM_OPEN
		MENUITEM SEPARATOR
		MENUITEM "終了(\036X\037シ)",    IDM_EXIT
	END
	POPUP        "表示(\036V\037ヒ)"
	BEGIN
		MENUITEM "TAB(&8)", IDM_TAB8
		MENUITEM "TAB(&4)", IDM_TAB4
		MENUITEM "TAB(&2)", IDM_TAB2
		MENUITEM "TAB(&1)", IDM_TAB1
		MENUITEM SEPARATOR
		MENUITEM "行ピッチを広げる(&L)", IDM_LINE
	END
	POPUP        "ヘルプ(\036H\037ヘ)"
	BEGIN
		MENUITEM "バージョン情報(\036A\037シ)...", IDM_ABOUT
	END
END
TextAccel ACCELERATORS
BEGIN
	VK_F1, IDM_ABOUT, VIRTKEY
END

ファイル名:text.def

NAME	     TextView
DESCRIPTION  'テキストビュアー'
EXETYPE      WINDOWS
STUB	     'WINSTUB.EXE'
CODE  PRELOAD MOVEABLE DISCARDABLE
DATA  PRELOAD MOVEABLE MULTIPLE
HEAPSIZE     1024
STACKSIZE    8192
EXPORTS
	MainWndProc   @1   ; ウィンドウ処理関数の名前
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