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Tekproc.c
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Tekproc.c
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/*
* $XConsortium: Tekproc.c /main/120 1996/11/29 10:33:20 swick $
* $XFree86: xc/programs/xterm/Tekproc.c,v 3.29 2000/02/08 17:19:27 dawes Exp $
*
* Warning, there be crufty dragons here.
*/
/*
Copyright (c) 1988 X Consortium
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the X Consortium.
* Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of Digital Equipment
* Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
*
*
* DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
/* Tekproc.c */
#include <xterm.h>
#include <X11/Xos.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/StringDefs.h>
#include <X11/Shell.h>
#include <X11/Xmu/CharSet.h>
#if OPT_TOOLBAR
#include <X11/Xaw/Form.h>
#endif
#include <stdio.h>
#include <ctype.h>
#include <signal.h>
#include <Tekparse.h>
#include <data.h>
#include <error.h>
#include <menu.h>
#ifdef X_NOT_STDC_ENV
extern time_t time ();
#else
#include <time.h>
#endif
#ifdef MINIX
#include <sys/nbio.h>
#define select(n,r,w,x,t) nbio_select(n,r,w,x,t)
#define read(f,b,s) nbio_read(f,b,s)
#define write(f,b,s) nbio_write(f,b,s)
#endif
#define DefaultGCID XGContextFromGC(DefaultGC(screen->display, DefaultScreen(screen->display)))
/* Tek defines */
#define DOTDASHEDLINE 2
#define DOTTEDLINE 1
#define EAST 01
#define LINEMASK 07
#define LONGDASHEDLINE 4
#define MARGIN1 0
#define MARGIN2 1
#define MAX_PTS 150
#define MAX_VTX 300
#define NORTH 04
#define PENDOWN 1
#define PENUP 0
#define SHORTDASHEDLINE 3
#define SOLIDLINE 0
#define SOUTH 010
#define TEKBOTTOMPAD 23
#define TEKDEFHEIGHT 565
#define TEKDEFWIDTH 750
#define TEKHEIGHT 3072
#define TEKHOME ((TekChar[screen->page.fontsize].nlines - 1)\
* TekChar[screen->page.fontsize].vsize)
#define TEKMINHEIGHT 452
#define TEKMINWIDTH 600
#define TEKTOPPAD 34
#define TEKWIDTH 4096
#define WEST 02
#define TekMove(x,y) screen->cur_X = x; screen->cur_Y = y
#define input() Tinput()
#define unput(c) *Tpushback++ = c
extern Bool waiting_for_initial_map;
extern Arg ourTopLevelShellArgs[];
extern int number_ourTopLevelShellArgs;
static struct Tek_Char {
int hsize; /* in Tek units */
int vsize; /* in Tek units */
int charsperline;
int nlines;
} TekChar[TEKNUMFONTS] = {
{56, 88, 74, 35}, /* large */
{51, 82, 81, 38}, /* #2 */
{34, 53, 121, 58}, /* #3 */
{31, 48, 133, 64}, /* small */
};
static Cursor GINcursor;
static XSegment *line_pt;
static int nplot;
static TekLink Tek0;
static jmp_buf Tekjump;
static TekLink *TekRecord;
static XSegment *Tline;
static Const int *curstate = Talptable;
static Const int *Tparsestate = Talptable;
static char defaultTranslations[] = "\
~Meta<KeyPress>: insert-seven-bit() \n\
Meta<KeyPress>: insert-eight-bit() \n\
!Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
!Lock Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
!Lock Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
!Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
!Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
!Lock Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
!Lock Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
!Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
Shift ~Meta<Btn1Down>: gin-press(L) \n\
~Meta<Btn1Down>: gin-press(l) \n\
Shift ~Meta<Btn2Down>: gin-press(M) \n\
~Meta<Btn2Down>: gin-press(m) \n\
Shift ~Meta<Btn3Down>: gin-press(R) \n\
~Meta<Btn3Down>: gin-press(r)";
static XtActionsRec actionsList[] = {
{ "string", HandleStringEvent },
{ "insert", HandleKeyPressed }, /* alias for insert-seven-bit */
{ "insert-seven-bit", HandleKeyPressed },
{ "insert-eight-bit", HandleEightBitKeyPressed },
{ "gin-press", HandleGINInput },
{ "secure", HandleSecure },
{ "create-menu", HandleCreateMenu },
{ "popup-menu", HandlePopupMenu },
/* menu actions */
{ "allow-send-events", HandleAllowSends },
{ "set-visual-bell", HandleSetVisualBell },
#ifdef ALLOWLOGGING
{ "set-logging", HandleLogging },
#endif
{ "redraw", HandleRedraw },
{ "send-signal", HandleSendSignal },
{ "quit", HandleQuit },
{ "set-scrollbar", HandleScrollbar },
{ "set-jumpscroll", HandleJumpscroll },
{ "set-reverse-video", HandleReverseVideo },
{ "set-autowrap", HandleAutoWrap },
{ "set-reversewrap", HandleReverseWrap },
{ "set-autolinefeed", HandleAutoLineFeed },
{ "set-appcursor", HandleAppCursor },
{ "set-appkeypad", HandleAppKeypad },
{ "set-scroll-on-key", HandleScrollKey },
{ "set-scroll-on-tty-output", HandleScrollTtyOutput },
{ "set-allow132", HandleAllow132 },
{ "set-cursesemul", HandleCursesEmul },
{ "set-marginbell", HandleMarginBell },
{ "set-altscreen", HandleAltScreen },
{ "soft-reset", HandleSoftReset },
{ "hard-reset", HandleHardReset },
{ "set-terminal-type", HandleSetTerminalType },
{ "set-visibility", HandleVisibility },
{ "set-tek-text", HandleSetTekText },
{ "tek-page", HandleTekPage },
{ "tek-reset", HandleTekReset },
{ "tek-copy", HandleTekCopy },
};
static Dimension defOne = 1;
#define GIN_TERM_NONE_STR "none"
#define GIN_TERM_CR_STR "CRonly"
#define GIN_TERM_EOT_STR "CR&EOT"
#define GIN_TERM_NONE 0
#define GIN_TERM_CR 1
#define GIN_TERM_EOT 2
#ifdef VMS
#define DFT_FONT_SMALL "FIXED"
#else
#define DFT_FONT_SMALL "6x10"
#endif
static XtResource resources[] = {
#ifdef VMS
{XtNbackground, XtCBackground, XtRPixel, sizeof(Pixel),
XtOffset(TekWidget, core.background_pixel),
XtRString, "White"},
{XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
XtOffset(TekWidget, Tforeground),
XtRString, "Black"},
#endif
{XtNwidth, XtCWidth, XtRDimension, sizeof(Dimension),
XtOffsetOf(CoreRec, core.width), XtRDimension, (caddr_t)&defOne},
{XtNheight, XtCHeight, XtRDimension, sizeof(Dimension),
XtOffsetOf(CoreRec, core.height), XtRDimension, (caddr_t)&defOne},
{"fontLarge", XtCFont, XtRFontStruct, sizeof(XFontStruct *),
XtOffsetOf(TekWidgetRec, tek.Tfont[TEK_FONT_LARGE]),
XtRString, "9x15"},
{"font2", XtCFont, XtRFontStruct, sizeof(XFontStruct *),
XtOffsetOf(TekWidgetRec, tek.Tfont[TEK_FONT_2]),
XtRString, "6x13"},
{"font3", XtCFont, XtRFontStruct, sizeof(XFontStruct *),
XtOffsetOf(TekWidgetRec, tek.Tfont[TEK_FONT_3]),
XtRString, "8x13"},
{"fontSmall", XtCFont, XtRFontStruct, sizeof(XFontStruct *),
XtOffsetOf(TekWidgetRec, tek.Tfont[TEK_FONT_SMALL]),
XtRString, DFT_FONT_SMALL},
{"initialFont", "InitialFont", XtRString, sizeof(char *),
XtOffsetOf(TekWidgetRec, tek.initial_font),
XtRString, "large"},
{"ginTerminator", "GinTerminator", XtRString, sizeof(char *),
XtOffsetOf(TekWidgetRec, tek.gin_terminator_str),
XtRString, GIN_TERM_NONE_STR},
#if OPT_TOOLBAR
{XtNmenuBar, XtCMenuBar, XtRWidget, sizeof(Widget),
XtOffsetOf(TekWidgetRec, tek.menu_bar),
XtRWidget, (XtPointer) 0},
{XtNmenuHeight, XtCMenuHeight, XtRInt, sizeof(int),
XtOffsetOf(TekWidgetRec, tek.menu_height),
XtRString, "25"},
#endif
};
static int Tinput (void);
static int getpoint (void);
static void TCursorBack (void);
static void TCursorDown (void);
static void TCursorForward (void);
static void TCursorUp (void);
static void TekBackground (TScreen *screen);
static void TekConfigure (Widget w);
static void TekDraw (int x, int y);
static void TekEnq (int status, int x, int y);
static void TekFlush (void);
static void TekInitialize (Widget request, Widget wnew, ArgList args, Cardinal *num_args);
static void TekPage (void);
static void TekRealize (Widget gw, XtValueMask *valuemaskp, XSetWindowAttributes *values);
static WidgetClassRec tekClassRec = {
{
/* core_class fields */
/* superclass */ (WidgetClass) &widgetClassRec,
/* class_name */ "Tek4014",
/* widget_size */ sizeof(TekWidgetRec),
/* class_initialize */ NULL,
/* class_part_initialize */ NULL,
/* class_inited */ FALSE,
/* initialize */ TekInitialize,
/* initialize_hook */ NULL,
/* realize */ TekRealize,
/* actions */ actionsList,
/* num_actions */ XtNumber(actionsList),
/* resources */ resources,
/* num_resources */ XtNumber(resources),
/* xrm_class */ NULLQUARK,
/* compress_motion */ TRUE,
/* compress_exposure */ TRUE,
/* compress_enterleave */ TRUE,
/* visible_interest */ FALSE,
/* destroy */ NULL,
/* resize */ TekConfigure,
/* expose */ TekExpose,
/* set_values */ NULL,
/* set_values_hook */ NULL,
/* set_values_almost */ NULL,
/* get_values_hook */ NULL,
/* accept_focus */ NULL,
/* version */ XtVersion,
/* callback_offsets */ NULL,
/* tm_table */ defaultTranslations,
/* query_geometry */ XtInheritQueryGeometry,
/* display_accelerator*/ XtInheritDisplayAccelerator,
/* extension */ NULL
}
};
#define tekWidgetClass ((WidgetClass)&tekClassRec)
static Boolean Tfailed = FALSE;
int TekInit (void)
{
Widget form_top, menu_top;
if (!Tfailed
&& tekWidget == 0) {
/* this causes the Initialize method to be called */
tekshellwidget = XtCreatePopupShell (
"tektronix", topLevelShellWidgetClass,
toplevel, ourTopLevelShellArgs,
number_ourTopLevelShellArgs);
SetupMenus(tekshellwidget, &form_top, &menu_top);
/* this causes the Realize method to be called */
tekWidget = (TekWidget) XtVaCreateManagedWidget (
"tek4014", tekWidgetClass, form_top,
#if OPT_TOOLBAR
XtNmenuBar, menu_top,
XtNresizable, True,
XtNfromVert, menu_top,
XtNleft, XawChainLeft,
XtNright, XawChainRight,
XtNbottom, XawChainBottom,
#endif
0);
}
return (!Tfailed);
}
/*
* If we haven't allocated the PtyData struct, do so.
*/
int
TekPtyData(void)
{
if (Tbuffer == 0) {
if ((Tbuffer = (PtyData *)malloc(sizeof(PtyData))) == NULL
|| (Tpushb = (Char *)malloc(10)) == NULL
|| (Tline = (XSegment *)malloc(MAX_VTX * sizeof(XSegment))) == NULL) {
fprintf (stderr, "%s: Not enough core for Tek mode\n", xterm_name);
if(Tpushb) free((char *)Tpushb);
if(Tbuffer) free((char *)Tbuffer);
Tfailed = TRUE;
return 0;
}
}
return 1;
}
static void Tekparse(void)
{
register TScreen *screen = &term->screen;
register int c, x, y;
Char ch;
int nextstate;
for( ; ; ) {
c = input();
/*
* The parsing tables all have 256 entries. If we're supporting
* wide characters, we handle them by treating them the same as
* printing characters.
*/
#if OPT_WIDE_CHARS
if (c > 255) {
nextstate = (Tparsestate == Talptable)
? CASE_PRINT
: CASE_IGNORE;
} else
#endif
nextstate = Tparsestate[c];
TRACE(("parse %d -> %d\n", c, nextstate));
switch(nextstate) {
case CASE_REPORT:
/* report address */
if(screen->TekGIN) {
TekGINoff();
TekEnqMouse(0);
} else {
c = 064; /* has hard copy unit */
if(screen->margin == MARGIN2)
c |= 02;
TekEnq(c, screen->cur_X, screen->cur_Y);
}
TekRecord->ptr[-1] = NAK; /* remove from recording */
Tparsestate = curstate;
break;
case CASE_VT_MODE:
/* special return to vt102 mode */
Tparsestate = curstate;
TekRecord->ptr[-1] = NAK; /* remove from recording */
#ifdef ALLOWLOGGING
if(screen->logging) {
FlushLog(screen);
screen->logstart = DecodedData(&(VTbuffer));
}
#endif
return;
case CASE_SPT_STATE:
/* Enter Special Point Plot mode */
if(screen->TekGIN)
TekGINoff();
Tparsestate = curstate = Tspttable;
break;
case CASE_GIN:
/* Do Tek GIN mode */
screen->TekGIN = &TekRecord->ptr[-1];
/* Set cross-hair cursor raster array */
if ((GINcursor =
make_colored_cursor (XC_tcross, screen->mousecolor,
screen->mousecolorback)) != 0)
XDefineCursor (screen->display, TShellWindow,
GINcursor);
Tparsestate = Tbyptable; /* Bypass mode */
break;
case CASE_BEL:
/* BEL */
if(screen->TekGIN)
TekGINoff();
if(!TekRefresh)
Bell(XkbBI_TerminalBell,0);
Tparsestate = curstate; /* clear bypass condition */
break;
case CASE_BS:
/* BS */
if(screen->TekGIN)
TekGINoff();
Tparsestate = curstate; /* clear bypass condition */
TCursorBack();
break;
case CASE_PT_STATE:
/* Enter Tek Point Plot mode */
if(screen->TekGIN)
TekGINoff();
Tparsestate = curstate = Tpttable;
break;
case CASE_PLT_STATE:
/* Enter Tek Plot mode */
if(screen->TekGIN)
TekGINoff();
Tparsestate = curstate = Tplttable;
if((c = input()) == BEL)
screen->pen = PENDOWN;
else {
unput(c);
screen->pen = PENUP;
}
break;
case CASE_TAB:
/* HT */
if(screen->TekGIN)
TekGINoff();
Tparsestate = curstate; /* clear bypass condition */
TCursorForward();
break;
case CASE_IPL_STATE:
/* Enter Tek Incremental Plot mode */
if(screen->TekGIN)
TekGINoff();
Tparsestate = curstate = Tipltable;
break;
case CASE_ALP_STATE:
/* Enter Tek Alpha mode from any other mode */
if(screen->TekGIN)
TekGINoff();
/* if in one of graphics states, move alpha cursor */
if(nplot > 0) /* flush line Tbuffer */
TekFlush();
Tparsestate = curstate = Talptable;
break;
case CASE_UP:
/* cursor up */
if(screen->TekGIN)
TekGINoff();
Tparsestate = curstate; /* clear bypass condition */
TCursorUp();
break;
case CASE_COPY:
/* make copy */
if(screen->TekGIN)
TekGINoff();
TekCopy();
TekRecord->ptr[-1] = NAK; /* remove from recording */
Tparsestate = curstate; /* clear bypass condition */
break;
case CASE_PAGE:
/* Page Function */
if(screen->TekGIN)
TekGINoff();
TekPage(); /* clear bypass condition */
break;
case CASE_BES_STATE:
/* Byp: an escape char */
Tparsestate = Tbestable;
break;
case CASE_BYP_STATE:
/* set bypass condition */
Tparsestate = Tbyptable;
break;
case CASE_IGNORE:
/* Esc: totally ignore CR, ESC, LF, ~ */
break;
case CASE_ASCII:
/* Select ASCII char set */
/* ignore for now */
Tparsestate = curstate;
break;
case CASE_APL:
/* Select APL char set */
/* ignore for now */
Tparsestate = curstate;
break;
case CASE_CHAR_SIZE:
/* character size selector */
TekSetFontSize (c & 03);
Tparsestate = curstate;
break;
case CASE_BEAM_VEC:
/* beam and vector selector */
/* only line types */
if((c &= LINEMASK) != screen->cur.linetype) {
if(nplot > 0)
TekFlush();
if (c <= TEKNUMLINES)
screen->cur.linetype = c;
}
Tparsestate = curstate;
break;
case CASE_CURSTATE:
Tparsestate = curstate;
break;
case CASE_PENUP:
/* Ipl: penup */
screen->pen = PENUP;
break;
case CASE_PENDOWN:
/* Ipl: pendown */
screen->pen = PENDOWN;
break;
case CASE_IPL_POINT:
/* Ipl: point */
x = screen->cur_X;
y = screen->cur_Y;
if(c & NORTH)
y++;
else if(c & SOUTH)
y--;
if(c & EAST)
x++;
else if(c & WEST)
x--;
if(screen->pen == PENDOWN)
TekDraw(x, y);
else
TekMove(x, y);
break;
case CASE_PLT_VEC:
/* Plt: vector */
unput(c);
if(getpoint()) {
if(screen->pen == PENDOWN)
TekDraw(screen->cur.x, screen->cur.y);
else
TekMove(screen->cur.x, screen->cur.y);
screen->pen = PENDOWN;
}
break;
case CASE_PT_POINT:
/* Pt: point */
unput(c);
if(getpoint()) {
TekMove(screen->cur.x, screen->cur.y);
TekDraw(screen->cur.x, screen->cur.y);
}
break;
case CASE_SPT_POINT:
/* Spt: point */
/* ignore intensity character in c */
if(getpoint()) {
TekMove(screen->cur.x, screen->cur.y);
TekDraw(screen->cur.x, screen->cur.y);
}
break;
case CASE_CR:
/* CR */
if(screen->TekGIN)
TekGINoff();
if(nplot > 0) /* flush line Tbuffer */
TekFlush();
screen->cur_X = screen->margin == MARGIN1 ? 0 :
TEKWIDTH / 2;
Tparsestate = curstate = Talptable;
break;
case CASE_ESC_STATE:
/* ESC */
Tparsestate = Tesctable;
break;
case CASE_LF:
/* LF */
if(screen->TekGIN)
TekGINoff();
TCursorDown();
if (!TekRefresh)
do_xevents();
break;
case CASE_SP:
/* SP */
TCursorForward();
break;
case CASE_PRINT:
/* printable character */
ch = c;
c = screen->cur.fontsize;
x = (int)(screen->cur_X * TekScale(screen)) + screen->border;
y = (int)((TEKHEIGHT + TEKTOPPAD - screen->cur_Y) * TekScale(screen)) + screen->border;
#if OPT_WIDE_CHARS
if (screen->wide_chars
&& (ch > 255)) {
XChar2b sbuf;
sbuf.byte2 = CharOf(ch);
sbuf.byte1 = CharOf(ch >>8);
XDrawImageString16(
screen->display,
TWindow(screen),
screen->TnormalGC,
x,
y,
&sbuf,
1);
} else
#endif
XDrawString(
screen->display,
TWindow(screen),
screen->TnormalGC,
x,
y,
(char *)&ch,
1);
TCursorForward();
break;
case CASE_OSC:
/* FIXME: someone should disentangle the input queues
* of this code so that it can be state-driven.
*/
/* do osc escape */
{
Char buf2[512];
int c2, len = 0;
while ((c2 = Tinput()) != BEL) {
if (!isprint(c2 & 0x7f)
|| len+2 >= (int) sizeof(buf2))
break;
buf2[len++] = c2;
}
if (c2 == BEL)
do_osc(buf2, len, BEL);
}
Tparsestate = curstate;
break;
}
}
}
static int rcnt;
static char *rptr;
#ifdef VMS
static int Tselect_mask;
#else /* VMS */
static fd_set Tselect_mask;
#endif /* VMS */
static int Tinput(void)
{
register TScreen *screen = &term->screen;
register int i;
register TekLink *tek;
if(Tpushback > Tpushb)
return(*--Tpushback);
if(TekRefresh) {
if(rcnt-- > 0)
return(*rptr++);
if ((tek = TekRefresh->next) != 0) {
TekRefresh = tek;
rptr = tek->data;
rcnt = tek->count - 1;
TekSetFontSize(tek->fontsize);
return(*rptr++);
}
TekRefresh = (TekLink *)0;
longjmp(Tekjump, 1);
}
again:
if(Tbuffer->cnt-- <= 0) {
if(nplot > 0) /* flush line Tbuffer */
TekFlush();
#ifdef VMS
Tselect_mask = pty_mask; /* force a read */
#else /* VMS */
XFD_COPYSET (&pty_mask, &Tselect_mask);
#endif /* VMS */
for( ; ; ) {
#ifdef CRAY
struct timeval crocktimeout;
crocktimeout.tv_sec = 0;
crocktimeout.tv_usec = 0;
(void) Select (max_plus1,
&Tselect_mask, NULL, NULL,
&crocktimeout);
#endif
#ifdef VMS
if(Tselect_mask & pty_mask) {
#ifdef ALLOWLOGGING
if(screen->logging)
FlushLog(screen);
#endif
if (read_queue.flink != 0) {
Tbuffer->cnt = tt_read(Tbuffer->ptr = Tbuffer->buf);
if(Tbuffer->cnt == 0) {
Panic("input: read returned zero\n", 0);
}
else { break; }
}
else { sys$hiber(); }
}
#else /* VMS */
if (getPtyData(screen, &Tselect_mask, Tbuffer)) {
break;
}
#endif /* VMS */
if (Ttoggled && curstate == Talptable) {
TCursorToggle(TOGGLE);
Ttoggled = FALSE;
}
#ifndef AMOEBA
if(XtAppPending(app_con) & XtIMXEvent) {
#ifdef VMS
Tselect_mask = X_mask;
#else /* VMS */
XFD_COPYSET (&X_mask, &Tselect_mask);
#endif /* VMS */
} else {
XFlush(screen->display);
#ifdef VMS
Tselect_mask = Select_mask;
#else /* VMS */
XFD_COPYSET (&Select_mask, &Tselect_mask);
if((i = Select(max_plus1,
&Tselect_mask, NULL, NULL,
NULL)) < 0){
if (errno != EINTR)
SysError(ERROR_TSELECT);
continue;
}
#endif /* VMS */
}
#else /* AMOEBA */
XFlush(screen->display);
i = _X11TransAmSelect(ConnectionNumber(screen->display),
1);
/* if there are X events already in our queue,
it counts as being readable */
if (XtAppPending(app_con) || i > 0) {
xevents();
continue;
} else if (i < 0) {
extern int exiting;
if (errno != EINTR && !exiting)
SysError(ERROR_SELECT);
}
if (Tbuffer->cnt > 0)
goto again;
if (cb_full(screen->tty_outq) <= 0)
SleepMainThread();
#endif /* AMOEBA */
#ifdef VMS
if(Tselect_mask & X_mask) {
xevents();
if(Tbuffer->cnt > 0)
goto again;
}
#else /* VMS */
if(FD_ISSET (ConnectionNumber (screen->display), &Tselect_mask)) {
xevents();
if(Tbuffer->cnt > 0)
goto again;
}
#endif /* VMS */
}
Tbuffer->cnt--;
if (!Ttoggled && curstate == Talptable) {
TCursorToggle(TOGGLE);
Ttoggled = TRUE;
}
}
tek = TekRecord;
if(tek->count >= TEK_LINK_BLOCK_SIZE
|| tek->fontsize != screen->cur.fontsize) {
if((TekRecord = tek->next = (TekLink *)malloc(sizeof(TekLink)))
== (TekLink *)0)
Panic("Tinput: malloc error (%d)\n", errno);
tek = tek->next;
tek->next = (TekLink *)0;
tek->fontsize = screen->cur.fontsize;
tek->count = 0;
tek->ptr = tek->data;
}
tek->count++;
return(*tek->ptr++ = *(Tbuffer->ptr)++);
}
/* this should become the Tek Widget's Resize proc */
static void TekConfigure(Widget w)
{
register TScreen *screen = &term->screen;
register int border = 2 * screen->border;
register double d;
if (TWindow(screen)) XClearWindow(screen->display, TWindow(screen));
TWidth(screen) = w->core.width - border;
THeight(screen) = w->core.height - border;
TekScale(screen) = (double)TWidth(screen) / TEKWIDTH;
if((d = (double)THeight(screen) / (TEKHEIGHT + TEKTOPPAD + TEKBOTTOMPAD))
< TekScale(screen))
TekScale(screen) = d;
TFullWidth(screen) = w->core.width;
TFullHeight(screen) = w->core.height;
}
/*ARGSUSED*/
void
TekExpose(
Widget w GCC_UNUSED,
XEvent *event GCC_UNUSED,
Region region GCC_UNUSED)
{
register TScreen *screen = &term->screen;
#ifdef lint
region = region;
#endif
if(!Ttoggled)
TCursorToggle(CLEAR);
Ttoggled = TRUE;
Tpushback = Tpushb;
screen->cur_X = 0;
screen->cur_Y = TEKHOME;
TekSetFontSize(screen->page.fontsize);
screen->cur = screen->page;
screen->margin = MARGIN1;
if(screen->TekGIN) {
screen->TekGIN = NULL;
TekGINoff();
}
TekRefresh = &Tek0;
rptr = TekRefresh->data;
rcnt = TekRefresh->count;
Tparsestate = curstate = Talptable;
if (waiting_for_initial_map)
first_map_occurred ();
if(!screen->waitrefresh)
dorefresh();
}
void
dorefresh(void)
{
register TScreen *screen = &term->screen;
static Cursor wait_cursor = None;
if (wait_cursor == None)
wait_cursor = make_colored_cursor (XC_watch, screen->mousecolor,
screen->mousecolorback);
XDefineCursor(screen->display, TShellWindow, wait_cursor);
XFlush(screen->display);
if(!setjmp(Tekjump))
Tekparse();
XDefineCursor(screen->display, TShellWindow,
(screen->TekGIN && GINcursor) ? GINcursor : screen->arrow);
}
static void
TekPage(void)
{
register TScreen *screen = &term->screen;
register TekLink *tek;
XClearWindow(screen->display, TWindow(screen));
screen->cur_X = 0;
screen->cur_Y = TEKHOME;
screen->margin = MARGIN1;
screen->page = screen->cur;
if(screen->TekGIN)
TekGINoff();
tek = TekRecord = &Tek0;
tek->fontsize = screen->cur.fontsize;
tek->count = 0;
tek->ptr = tek->data;
tek = tek->next;
if(tek)
do {
TekLink *tek2 = tek->next;
free((char *)tek);
tek = tek2;
} while(tek);
TekRecord->next = (TekLink *)0;
TekRefresh = (TekLink *)0;
Ttoggled = TRUE;
Tparsestate = curstate = Talptable; /* Tek Alpha mode */
}
#define EXTRABITS 017
#define FIVEBITS 037
#define HIBITS (FIVEBITS << SHIFTHI)
#define LOBITS (FIVEBITS << SHIFTLO)
#define SHIFTHI 7
#define SHIFTLO 2
#define TWOBITS 03
static int
getpoint(void)
{
register int c, x, y, e, lo_y = 0;
register TScreen *screen = &term->screen;
x = screen->cur.x;
y = screen->cur.y;
for( ; ; ) {
if((c = input()) < ' ') { /* control character */
unput(c);
return(0);