void _WriteBuf(char *Buffer, WORD Count)
{
int L, R;
__InitEasyWin();
L = _Cursor.x;
R = _Cursor.x;
while (Count > 0)
{
if (Buffer[0] == -1)
Buffer[0] = ' ';
switch (Buffer[0])
{
case 13:
NewLine(L, R);
break;
case 10:
break;
case 9:
do
{
*(ScreenPtr(_Cursor.x, _Cursor.y)) = ' ';
++_Cursor.x;
if (_Cursor.x > R)
R = _Cursor.x;
if (_Cursor.x == _ScreenSize.x)
{
NewLine(L, R);
break;
}
} while (_Cursor.x % 8);
break;
case 8:
if (_Cursor.x > 0)
{
--_Cursor.x;
*(ScreenPtr(_Cursor.x, _Cursor.y)) = ' ';
if (_Cursor.x < L )
L = _Cursor.x;
}
break;
case 7:
MessageBeep(0);
break;
default:
*(ScreenPtr(_Cursor.x, _Cursor.y)) = Buffer[0];
++_Cursor.x;
if (_Cursor.x > R)
R = _Cursor.x;
if (_Cursor.x == _ScreenSize.x)
NewLine(L, R);
}
++Buffer;
--Count;
}
ShowText(L, R);
if (_AutoTracking)
_TrackCursor();
}
ScreenPtr
ScreenManager::get_current_screen()
{
if (screens.empty())
return ScreenPtr();
else
return screens.back();
}
static void ShowText(int L, int R)
{
if (L < R)
{
InitDeviceContext();
TextOut(DC, (L - _Origin.x) * CharSize.x,
(_Cursor.y - _Origin.y) * CharSize.y,
ScreenPtr(L, _Cursor.y), R - L);
DoneDeviceContext();
}
}
static void NewLine(int& L, int& R)
{
ShowText(L, R);
L = 0;
R = 0;
_Cursor.x = 0;
++_Cursor.y;
if (_Cursor.y == _ScreenSize.y)
{
--_Cursor.y;
++FirstLine;
if (FirstLine == _ScreenSize.y)
FirstLine = 0;
memset(ScreenPtr(0, _Cursor.y), ' ', _ScreenSize.x);
ScrollWindow(CrtWindow, 0, -CharSize.y, NULL, NULL);
UpdateWindow(CrtWindow);
}
}
static void WindowPaint(VOID)
{
int X1, X2, Y1, Y2;
Painting = TRUE;
InitDeviceContext();
X1 = Max(0, PS.rcPaint.left / CharSize.x + _Origin.x);
X2 = Min(_ScreenSize.x,
(PS.rcPaint.right + CharSize.x - 1) / CharSize.x + _Origin.x);
Y1 = Max(0, PS.rcPaint.top / CharSize.y + _Origin.y);
Y2 = Min(_ScreenSize.y,
(PS.rcPaint.bottom + CharSize.y - 1) / CharSize.y + _Origin.y);
while (Y1 < Y2)
{
TextOut(DC, (X1 - _Origin.x) * CharSize.x, (Y1 - _Origin.y) * CharSize.y,
ScreenPtr(X1, Y1), X2 - X1);
++Y1;
}
DoneDeviceContext();
Painting = FALSE;
}
void clreol(void)
{
__InitEasyWin();
memset(ScreenPtr(_Cursor.x, _Cursor.y), ' ',_ScreenSize.x - _Cursor.x);
ShowText(_Cursor.x, _ScreenSize.x);
}