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vmgros2.c
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vmgros2.c
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/*
* VMGROS2.C; VidMgr module for OS/2 compilers. Release 1.2.
*
* This module written in March 1996 by Andrew Clarke and released to the
* public domain. Last modified in May 1996.
*/
#define INCL_KBD
#define INCL_VIO
#define INCL_DOSPROCESS
#include <string.h>
#include <os2.h>
#include "vidmgr.h"
#ifndef KBDTRF_FINAL_CHAR_IN
#define KBDTRF_FINAL_CHAR_IN FINAL_CHAR_IN
#endif
static void vm_setcursorsize(char start, char end);
static void vm_getcursorsize(char *start, char *end);
void vm_init(void)
{
vm_getinfo(&vm_startup);
vm_setattr(vm_startup.attr);
}
void vm_done(void)
{
vm_setcursorsize(vm_startup.cur_start, vm_startup.cur_end);
}
void vm_getinfo(struct vm_info *v)
{
v->ypos = vm_wherey();
v->xpos = vm_wherex();
v->attr = vm_getattrxy(v->xpos, v->ypos);
v->height = vm_getscreenheight();
v->width = vm_getscreenwidth();
vm_getcursorsize(&v->cur_start, &v->cur_end);
}
char vm_getscreenwidth(void)
{
VIOMODEINFO vi;
vi.cb = sizeof(VIOMODEINFO);
VioGetMode(&vi, 0);
return vi.col;
}
char vm_getscreenheight(void)
{
VIOMODEINFO vi;
vi.cb = sizeof(VIOMODEINFO);
VioGetMode(&vi, 0);
return vi.row;
}
short vm_getscreensize(void)
{
return (short)(vm_getscreenwidth() * vm_getscreenheight() * 2);
}
char vm_wherex(void)
{
USHORT row, col;
VioGetCurPos(&row, &col, 0);
return (char)(col + 1);
}
char vm_wherey(void)
{
USHORT row, col;
VioGetCurPos(&row, &col, 0);
return (char)(row + 1);
}
void vm_gotoxy(char x, char y)
{
VioSetCurPos((USHORT) (y - 1), (USHORT) (x - 1), 0);
}
static void vm_setcursorsize(char start, char end)
{
VIOCURSORINFO vi;
vi.yStart = start;
vi.cEnd = end;
vi.cx = 0;
vi.attr = 0;
VioSetCurType(&vi, 0);
}
static void vm_getcursorsize(char *start, char *end)
{
VIOCURSORINFO vi;
VioGetCurType(&vi, 0);
*start = vi.yStart;
*end = vi.cEnd;
}
int vm_kbhit(void)
{
KBDKEYINFO ki;
ki.fbStatus = 0;
KbdPeek(&ki, 0);
return ki.fbStatus & KBDTRF_FINAL_CHAR_IN;
}
int vm_getch(void)
{
KBDKEYINFO ki;
ki.chChar = 0;
ki.chScan = 0;
KbdCharIn(&ki, IO_WAIT, 0);
if (ki.chChar == 0xe0)
{
if (ki.chScan)
{
ki.chChar = 0; /* force scan return */
}
else
{ /* get next block */
ki.chChar = 0;
KbdCharIn(&ki, IO_WAIT, 0);
if (!ki.chScan)
{ /* still no scan? */
ki.chScan = ki.chChar; /* move new char over */
ki.chChar = 0; /* force its return */
}
else
{
ki.chChar = 0; /* force new scan */
}
}
}
if (ki.chScan == 0xe0)
{
if (!ki.chChar)
{
ki.chScan = 0;
KbdCharIn(&ki, IO_WAIT, 0);
if (!ki.chScan)
{ /* still no scan? */
ki.chScan = ki.chChar; /* move new char over */
ki.chChar = 0; /* force its return */
}
else
{
ki.chChar = 0; /* force new scan */
}
}
else
{
ki.chScan = 0; /* handle 0xe00d case */
}
}
if (ki.chChar)
{
ki.chScan = 0;
}
return (int)((ki.chScan << 8) + (ki.chChar));
}
char vm_getchxy(char x, char y)
{
char ch;
USHORT len = 1;
VioReadCharStr(&ch, &len, (USHORT) (y - 1), (USHORT) (x - 1), 0);
return ch;
}
char vm_getattrxy(char x, char y)
{
char cell[4];
USHORT len = 4;
VioReadCellStr(cell, &len, (USHORT) (y - 1), (USHORT) (x - 1), 0);
return *(cell + 1);
}
void vm_xgetchxy(char x, char y, char *attr, char *ch)
{
char cell[4];
USHORT len = 4;
VioReadCellStr(cell, &len, (USHORT) (y - 1), (USHORT) (x - 1), 0);
*ch = *cell;
*attr = *(cell + 1);
}
void vm_setcursorstyle(int style)
{
VIOCURSORINFO vi;
switch (style)
{
case CURSORHALF:
vi.yStart = -50;
vi.cEnd = -100;
vi.cx = 0;
vi.attr = 0;
VioSetCurType(&vi, 0);
break;
case CURSORFULL:
vi.yStart = 0;
vi.cEnd = -100;
vi.cx = 0;
vi.attr = 0;
VioSetCurType(&vi, 0);
break;
case CURSORNORM:
vi.yStart = -90;
vi.cEnd = -100;
vi.cx = 0;
vi.attr = 0;
VioSetCurType(&vi, 0);
break;
case CURSORHIDE:
vi.yStart = -90;
vi.cEnd = -100;
vi.cx = 0;
vi.attr = -1;
VioSetCurType(&vi, 0);
break;
default:
break;
}
}
void vm_putch(char x, char y, char ch)
{
VioWrtCharStr(&ch, 1, (USHORT) (y - 1), (USHORT) (x - 1), 0);
}
void vm_puts(char x, char y, char *str)
{
VioWrtCharStr(str, (USHORT) strlen(str), (USHORT) (y - 1), (USHORT) (x - 1), 0);
}
void vm_xputch(char x, char y, char attr, char ch)
{
VioWrtCharStrAtt(&ch, 1, (USHORT) (y - 1), (USHORT) (x - 1), (PBYTE) &attr, 0);
}
void vm_xputs(char x, char y, char attr, char *str)
{
VioWrtCharStrAtt(str, (USHORT) strlen(str), (USHORT) (y - 1), (USHORT) (x - 1), (PBYTE) &attr, 0);
}
void vm_putattr(char x, char y, char attr)
{
VioWrtNAttr((PBYTE) &attr, 1, (USHORT) (y - 1), (USHORT) (x - 1), 0);
}
void vm_paintclearbox(char x1, char y1, char x2, char y2, char attr)
{
char y, cell[2];
cell[0] = ' ';
cell[1] = attr;
for (y = y1; y <= y2; y++)
{
VioWrtNCell((PBYTE) &cell, (USHORT) (x2 - x1 + 1), (USHORT) (y - 1), (USHORT) (x1 - 1), 0);
}
}
void vm_paintbox(char x1, char y1, char x2, char y2, char attr)
{
char y;
for (y = y1; y <= y2; y++)
{
VioWrtNAttr((PBYTE) &attr, (USHORT) (x2 - x1 + 1), (USHORT) (y - 1), (USHORT) (x1 - 1), 0);
}
}
void vm_clearbox(char x1, char y1, char x2, char y2)
{
char y, ch;
ch = ' ';
for (y = y1; y <= y2; y++)
{
VioWrtNChar((PBYTE) &ch, (USHORT) (x2 - x1 + 1), (USHORT) (y - 1), (USHORT) (x1 - 1), 0);
}
}
void vm_fillbox(char x1, char y1, char x2, char y2, char ch)
{
char y;
for (y = y1; y <= y2; y++)
{
VioWrtNChar((PBYTE) &ch, (USHORT) (x2 - x1 + 1), (USHORT) (y - 1), (USHORT) (x1 - 1), 0);
}
}
void vm_gettext(char x1, char y1, char x2, char y2, char *dest)
{
USHORT width;
char y;
width = (USHORT) ((x2 - x1 + 1) * 2);
for (y = y1; y <= y2; y++)
{
VioReadCellStr((PBYTE) dest, &width, (USHORT) (y - 1), (USHORT) (x1 - 1), 0);
dest += width;
}
}
void vm_puttext(char x1, char y1, char x2, char y2, char *srce)
{
USHORT width;
char y;
width = (USHORT) ((x2 - x1 + 1) * 2);
for (y = y1; y <= y2; y++)
{
VioWrtCellStr((PBYTE) srce, width, (USHORT) (y - 1), (USHORT) (x1 - 1), 0);
srce += width;
}
}
void vm_horizline(char x1, char x2, char row, char attr, char ch)
{
char cell[2];
cell[0] = ch;
cell[1] = attr;
VioWrtNCell((PBYTE) &cell, (USHORT) (x2 - x1 + 1), (USHORT) (row - 1), (USHORT) (x1 - 1), 0);
}