/*--------------------------------------------------------------------------*/
/* */
/* */
/* ------------ Bit-Bucket Software, Co. */
/* \ 10001101 / Writers and Distributors of */
/* \ 011110 / Freely Available<tm> Software. */
/* \ 1011 / */
/* ------ */
/* */
/* (C) Copyright 1987-91, Bit Bucket Software Co., a Delaware Corporation. */
/* */
/* */
/* Routines for updating the screen within BinkleyTerm */
/* */
/* */
/* For complete details of the licensing restrictions, please refer */
/* to the License agreement, which is published in its entirety in */
/* the MAKEFILE and BT.C, and also contained in the file LICENSE.250. */
/* */
/* USE OF THIS FILE IS SUBJECT TO THE RESTRICTIONS CONTAINED IN THE */
/* BINKLEYTERM LICENSING AGREEMENT. IF YOU DO NOT FIND THE TEXT OF */
/* THIS AGREEMENT IN ANY OF THE AFOREMENTIONED FILES, OR IF YOU DO */
/* NOT HAVE THESE FILES, YOU SHOULD IMMEDIATELY CONTACT BIT BUCKET */
/* SOFTWARE CO. AT ONE OF THE ADDRESSES LISTED BELOW. IN NO EVENT */
/* SHOULD YOU PROCEED TO USE THIS FILE WITHOUT HAVING ACCEPTED THE */
/* TERMS OF THE BINKLEYTERM LICENSING AGREEMENT, OR SUCH OTHER */
/* AGREEMENT AS YOU ARE ABLE TO REACH WITH BIT BUCKET SOFTWARE, CO. */
/* */
/* */
/* You can contact Bit Bucket Software Co. at any one of the following */
/* addresses: */
/* */
/* Bit Bucket Software Co. FidoNet 1:104/501, 1:343/491 */
/* P.O. Box 460398 AlterNet 7:491/0 */
/* Aurora, CO 80046 BBS-Net 86:2030/1 */
/* Internet f491.n343.z1.fidonet.org */
/* */
/* Please feel free to contact us at any time to share your comments about */
/* our software and/or licensing policies. */
/* */
/* */
/* This module is derived from code developed by Augie Hansen in his */
/* book "Proficient C" published by Microsoft Press. Mr. Hansen was */
/* kind enough to give us verbal permission to use his routines, and */
/* Bob, Vince and Alan (and all our full screen users) are grateful. */
/* If you decide to use this code in some package you are doing, give */
/* some thought to going out and buying the book. He deserves that. */
/* */
/*--------------------------------------------------------------------------*/
/* Include this file before any other includes or defines! */
#include "includes.h"
extern BUFFER Sbuf;
extern CELLP Scrnbuf;
extern int cursor_col;
extern int cursor_row;
#ifdef MILQ
static BlankedWnd = NULLHWND;
#endif
void sb_show ()
{
register unsigned int r;
unsigned int src_os;
char far *q;
if (screen_blank && do_screen_blank)
{
#ifdef MILQ
if ( !BlankedWnd ) {
BlankedWnd = GetFocus();
}
WinSetAttr( _HwndDesktop, 0, 0 );
CloseWindow( MilqueMailerWnd );
SetFocus( MilqueMailerWnd );
SetWindowPos( MilqueMailerWnd,
NULLHWND,
random( GetSystemMetrics(SM_CXSCREEN) - 15 ),
random( GetSystemMetrics(SM_CYSCREEN) - 4 ),
0, 0,
SWP_NOSIZE | SWP_NOZORDER | SWP_SHOWWINDOW );
WinDrawAllWindows();
#else
for (r = 0; r < SB_ROWS; r++)
{
q = blanks;
(void) VioWrtCellStr ((PCH) q, (USHORT) (SB_COLS * 2), (USHORT) r, (USHORT) 0, (HVIO) 0L);
}
#endif
sb_dirty ();
return;
}
#ifdef MILQ
if ( IsIconic( MilqueMailerWnd ) ) {
OpenIcon( MilqueMailerWnd );
BringWindowToTop( MilqueMailerMnu );
BringWindowToTop( callwin->hWnd );
BringWindowToTop( filewin->hWnd );
BringWindowToTop( historywin->hWnd );
BringWindowToTop( holdwin->hWnd );
BringWindowToTop( settingswin->hWnd );
if ( BlankedWnd ) {
SetFocus( BlankedWnd );
BlankedWnd = NULLHWND;
}
CallDlgPrc( callwin->hWnd, WM_PAINT, 0, 0L );
}
#endif
/* Anything to do? */
if (!(Sbuf.flags & SB_DELTA))
{
return;
}
src_os = 0;
for (r = 0; r < SB_ROWS; r++)
{
/* Copy only changed portions of lines */
if (((unsigned)Sbuf.lcol[r] < SB_COLS) && (Sbuf.rcol[r] > 0))
{
#ifndef MILQ
q = (char far *) (Scrnbuf + src_os + Sbuf.lcol[r]);
(void) VioWrtCellStr ((PCH) q, (USHORT) ((Sbuf.rcol[r] - Sbuf.lcol[r] + 1) * 2), (USHORT) r, (USHORT) Sbuf.lcol[r], (HVIO) 0L);
#endif
Sbuf.lcol[r] = SB_COLS;
Sbuf.rcol[r] = 0;
}
src_os += (unsigned) SB_COLS;
}
/* the display now matches the buffer -- clear flag bit */
Sbuf.flags &= ~SB_DELTA;
/* Put sanity check on cursor_row and cursor_col here */
if (cursor_row < 0 || cursor_row > (int)(SB_ROWS - 1))
cursor_row = SB_ROWS - 1;
if (cursor_col < 0 || cursor_col > (int)(SB_COLS - 1))
cursor_col = SB_COLS - 1;
#ifndef MILQ
gotoxy (cursor_col, cursor_row);
#endif
return;
}
/*
* Just cleans up the structure to say it is reality - I can use this when
* I write directly to the screen for single char writes.
*/
void sb_clean ()
{
int r;
for (r = 0; r < (int) SB_ROWS; r++)
{
Sbuf.lcol[r] = SB_COLS;
Sbuf.rcol[r] = 0;
}
Sbuf.flags &= ~SB_DELTA;
}
/*
* Make the entire buffer "dirty" so it will be updated.
*/
void sb_dirty ()
{
int r;
for (r = 0; r < (int) SB_ROWS; r++)
{
Sbuf.lcol[r] = 0;
Sbuf.rcol[r] = SB_COLS_M_1;
}
Sbuf.flags |= SB_DELTA;
}