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Tekproc.c
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/* $XTermId: Tekproc.c,v 1.254 2024/12/01 20:21:19 tom Exp $ */
/*
* Copyright 2001-2022,2024 by Thomas E. Dickey
*
* All Rights Reserved
*
* 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the
* sale, use or other dealings in this Software without prior written
* authorization.
*
* Copyright 1988 X Consortium
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation.
*
* 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
* OPEN GROUP 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 */
#define RES_OFFSET(field) XtOffsetOf(TekWidgetRec, field)
#include <xterm.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <X11/Xmu/CharSet.h>
#if OPT_TOOLBAR
#if defined(HAVE_LIB_XAW)
#include <X11/Xaw/Form.h>
#elif defined(HAVE_LIB_XAW3D)
#include <X11/Xaw3d/Form.h>
#elif defined(HAVE_LIB_XAW3DXFT)
#include <X11/Xaw3dxft/Form.h>
#elif defined(HAVE_LIB_NEXTAW)
#include <X11/neXtaw/Form.h>
#elif defined(HAVE_LIB_XAWPLUS)
#include <X11/XawPlus/Form.h>
#endif
#endif /* OPT_TOOLBAR */
#include <assert.h>
#include <stdio.h>
#include <ctype.h>
#include <signal.h>
#include <Tekparse.h>
#include <data.h>
#include <error.h>
#include <menu.h>
#include <xstrings.h>
#define DefaultGCID(tw) \
XGContextFromGC(DefaultGC(XtDisplay(tw), \
DefaultScreen(XtDisplay(tw))))
/* Tek defines */
#define MY_CLASS "Tek4014"
#define MY_NAME "tek4014"
#define SOLIDLINE 0
#define DOTTEDLINE 1
#define DOTDASHEDLINE 2
#define SHORTDASHEDLINE 3
#define LONGDASHEDLINE 4
#define EAST 001
#define WEST 002
#define NORTH 004
#define SOUTH 010
#define LINEMASK 07
#define MARGIN1 0
#define MARGIN2 1
#define MAX_PTS 150
#define MAX_VTX 300
#define PENDOWN 1
#define PENUP 0
#define TEKBOTTOMPAD 23
#define TEKDEFHEIGHT 565
#define TEKDEFWIDTH 750
#define TEKHEIGHT 3072
#define TEKHOME ( (TekChar[tekscr->page.fontsize].nlines - 1) \
* TekChar[tekscr->page.fontsize].vsize)
#define TEKMINHEIGHT 452
#define TEKMINWIDTH 600
#define TEKTOPPAD 34
#define TEKWIDTH 4096
#define FULL_HEIGHT (TEKHEIGHT + TEKTOPPAD + TEKBOTTOMPAD)
#define BottomY(y) (TEKHEIGHT + TEKTOPPAD - (y))
#define BorderOf(tw) (TScreenOf((tw)->vt)->border)
#define ScaleOf(tw) TekScale(TekScreenOf(tw))
#define ScaledX(tw,x) (((x) * ScaleOf(tw)) + BorderOf(tw))
#define ScaledY(tw,y) ((BottomY(y) * ScaleOf(tw)) + BorderOf(tw))
#define TekMove(tw,x,y) do { tekscr->cur_X = x; tekscr->cur_Y = y; } while (0)
#define input() Tinput(tw)
#define unput(c) *Tpushback++ = (Char) c
/* *INDENT-OFF* */
static const 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 */
};
/* *INDENT-ON* */
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)";
/* *INDENT-OFF* */
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 },
#if OPT_TOOLBAR
{ "set-toolbar", HandleToolbar },
#endif
};
/* *INDENT-ON* */
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
#define DFT_FONT_SMALL "6x10"
static XtResource resources[] =
{
{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},
Fres("fontLarge", XtCFont, tek.Tfont[TEK_FONT_LARGE], "9x15"),
Fres("font2", XtCFont, tek.Tfont[TEK_FONT_2], "6x13"),
Fres("font3", XtCFont, tek.Tfont[TEK_FONT_3], "8x13"),
Fres("fontSmall", XtCFont, tek.Tfont[TEK_FONT_SMALL], DFT_FONT_SMALL),
Sres(XtNinitialFont, XtCInitialFont, tek.initial_font, "large"),
Sres("ginTerminator", "GinTerminator", tek.gin_terminator_str, GIN_TERM_NONE_STR),
#if OPT_TOOLBAR
Wres(XtNmenuBar, XtCMenuBar, tek.tb_info.menu_bar, 0),
Ires(XtNmenuHeight, XtCMenuHeight, tek.tb_info.menu_height, 25),
#endif
};
static IChar Tinput(TekWidget /* tw */ );
static int getpoint(TekWidget /* tw */ );
static void TCursorBack(TekWidget /* tw */ );
static void TCursorDown(TekWidget /* tw */ );
static void TCursorForward(TekWidget /* tw */ );
static void TCursorUp(TekWidget /* tw */ );
static void TekBackground(TekWidget /* tw */ ,
TScreen * /* screen */ );
static void TekResize(Widget /* w */ );
static void TekDraw(TekWidget /* tw */ ,
int /* x */ ,
int /* y */ );
static void TekEnq(TekWidget /* tw */ ,
unsigned /* status */ ,
int /* x */ ,
int /* y */ );
static void TekFlush(TekWidget /* tw */ );
static void TekInitialize(Widget /* request */ ,
Widget /* wnew */ ,
ArgList /* args */ ,
Cardinal * /* num_args */ );
static void TekPage(TekWidget /* tw */ );
static void TekRealize(Widget /* gw */ ,
XtValueMask * /* valuemaskp */ ,
XSetWindowAttributes * /* values */ );
static WidgetClassRec tekClassRec =
{
{
/* core_class fields */
(WidgetClass) & widgetClassRec, /* superclass */
MY_CLASS, /* class_name */
sizeof(TekWidgetRec), /* widget_size */
NULL, /* class_initialize */
NULL, /* class_part_initialize */
False, /* class_inited */
TekInitialize, /* initialize */
NULL, /* initialize_hook */
TekRealize, /* realize */
actionsList, /* actions */
XtNumber(actionsList), /* num_actions */
resources, /* resources */
XtNumber(resources), /* num_resources */
NULLQUARK, /* xrm_class */
True, /* compress_motion */
True, /* compress_exposure */
True, /* compress_enterleave */
False, /* visible_interest */
NULL, /* destroy */
TekResize, /* resize */
TekExpose, /* expose */
NULL, /* set_values */
NULL, /* set_values_hook */
XtInheritSetValuesAlmost, /* set_values_almost */
NULL, /* get_values_hook */
NULL, /* accept_focus */
XtVersion, /* version */
NULL, /* callback_offsets */
defaultTranslations, /* tm_table */
XtInheritQueryGeometry, /* query_geometry */
XtInheritDisplayAccelerator, /* display_accelerator */
NULL /* extension */
}
};
WidgetClass tekWidgetClass = (WidgetClass) & tekClassRec;
static Bool Tfailed = False;
/*
* TekInit/TekRun are called after the VT100 widget has been initialized, but
* may be before VT100 is realized, depending upon whether Tek4014 is the
* first window to be shown.
*/
int
TekInit(void)
{
Widget form_top, menu_top;
Dimension menu_high;
if (!Tfailed
&& tekWidget == NULL) {
Cardinal nargs = 0;
Arg myArgs[3];
Boolean iconic = 0;
TRACE(("TekInit\n"));
XtSetArg(myArgs[nargs], XtNiconic, &iconic);
++nargs;
XtGetValues(toplevel, myArgs, nargs);
nargs = 0;
XtSetArg(myArgs[nargs], XtNiconic, iconic);
++nargs;
XtSetArg(myArgs[nargs], XtNallowShellResize, True);
++nargs;
XtSetArg(myArgs[nargs], XtNinput, True);
++nargs;
/* this causes the Initialize method to be called */
tekshellwidget =
XtCreatePopupShell("tektronix", topLevelShellWidgetClass,
toplevel, myArgs, nargs);
SetupMenus(tekshellwidget, &form_top, &menu_top, &menu_high);
/* this causes the Realize method to be called */
tekWidget = (TekWidget)
XtVaCreateManagedWidget(MY_NAME,
tekWidgetClass, form_top,
#if OPT_TOOLBAR
XtNmenuBar, menu_top,
XtNresizable, True,
XtNfromVert, menu_top,
XtNtop, XawChainTop,
XtNleft, XawChainLeft,
XtNright, XawChainRight,
XtNbottom, XawChainBottom,
XtNmenuHeight, menu_high,
#endif
(XtPointer) 0);
TRACE(("created tek4014 widget %p, window %#lx\n",
(void *) tekWidget, XtWindow(tekWidget)));
#if OPT_TOOLBAR
ShowToolbar(resource.toolBar);
#endif
}
return (!Tfailed);
}
/*
* If we haven't allocated the PtyData struct, do so.
*/
static int
TekPtyData(void)
{
if (Tpushb == NULL && !Tfailed) {
if ((Tpushb = TypeMallocN(Char, 10)) == NULL
|| (Tline = TypeMallocN(XSegment, MAX_VTX)) == NULL) {
xtermWarning("Not enough core for Tek mode\n");
free(Tpushb);
Tfailed = True;
}
}
return (Tfailed ? 0 : 1);
}
static void
Tekparse(TekWidget tw)
{
TekScreen *tekscr = TekScreenOf(tw);
TScreen *screen = TScreenOf(tw->vt);
int x, y;
IChar ch;
int nextstate;
for (;;) {
IChar 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(("Tekparse %04X -> %d\n", c, nextstate));
switch (nextstate) {
case CASE_REPORT:
TRACE(("case: report address\n"));
if (tekscr->TekGIN) {
TekGINoff(tw);
TekEnqMouse(tw, 0);
} else {
c = 064; /* has hard copy unit */
if (tekscr->margin == MARGIN2)
c |= 02;
TekEnq(tw, c, tekscr->cur_X, tekscr->cur_Y);
}
TekRecord->ptr[-1] = ANSI_NAK; /* remove from recording */
Tparsestate = curstate;
break;
case CASE_VT_MODE:
TRACE(("case: special return to vt102 mode\n"));
Tparsestate = curstate;
TekRecord->ptr[-1] = ANSI_NAK; /* remove from recording */
FlushLog(tw->vt);
return;
case CASE_SPT_STATE:
TRACE(("case: Enter Special Point Plot mode\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
Tparsestate = curstate = Tspttable;
break;
case CASE_GIN:
TRACE(("case: Do Tek GIN mode\n"));
tekscr->TekGIN = &TekRecord->ptr[-1];
/* Set cross-hair cursor raster array */
if ((GINcursor =
make_colored_cursor(XC_tcross,
T_COLOR(screen, MOUSE_FG),
T_COLOR(screen, MOUSE_BG))) != 0) {
XDefineCursor(XtDisplay(tw), TWindow(tekscr),
GINcursor);
}
Tparsestate = Tbyptable; /* Bypass mode */
break;
case CASE_BEL:
TRACE(("case: BEL\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
if (!tekRefreshList)
Bell(tw->vt, XkbBI_TerminalBell, 0);
Tparsestate = curstate; /* clear bypass condition */
break;
case CASE_BS:
TRACE(("case: BS\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
Tparsestate = curstate; /* clear bypass condition */
TCursorBack(tw);
break;
case CASE_PT_STATE:
TRACE(("case: Enter Tek Point Plot mode\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
Tparsestate = curstate = Tpttable;
break;
case CASE_PLT_STATE:
TRACE(("case: Enter Tek Plot mode\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
Tparsestate = curstate = Tplttable;
if ((c = input()) == ANSI_BEL)
tekscr->pen = PENDOWN;
else {
unput(c);
tekscr->pen = PENUP;
}
break;
case CASE_TAB:
TRACE(("case: HT\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
Tparsestate = curstate; /* clear bypass condition */
TCursorForward(tw);
break;
case CASE_IPL_STATE:
TRACE(("case: Enter Tek Incremental Plot mode\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
Tparsestate = curstate = Tipltable;
break;
case CASE_ALP_STATE:
TRACE(("case: Enter Tek Alpha mode from any other mode\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
/* if in one of graphics states, move alpha cursor */
if (nplot > 0) /* flush line VTbuffer */
TekFlush(tw);
Tparsestate = curstate = Talptable;
break;
case CASE_UP:
TRACE(("case: cursor up\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
Tparsestate = curstate; /* clear bypass condition */
TCursorUp(tw);
break;
case CASE_COPY:
TRACE(("case: make copy\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
TekCopy(tw);
TekRecord->ptr[-1] = ANSI_NAK; /* remove from recording */
Tparsestate = curstate; /* clear bypass condition */
break;
case CASE_PAGE:
TRACE(("case: Page Function\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
TekPage(tw); /* clear bypass condition */
break;
case CASE_BES_STATE:
TRACE(("case: Byp: an escape char\n"));
Tparsestate = Tbestable;
break;
case CASE_BYP_STATE:
TRACE(("case: set bypass condition\n"));
Tparsestate = Tbyptable;
break;
case CASE_IGNORE:
TRACE(("case: Esc: totally ignore CR, ESC, LF, ~\n"));
break;
case CASE_ASCII:
TRACE(("case: Select ASCII char set\n"));
/* ignore for now */
Tparsestate = curstate;
break;
case CASE_APL:
TRACE(("case: Select APL char set\n"));
/* ignore for now */
Tparsestate = curstate;
break;
case CASE_CHAR_SIZE:
TRACE(("case: character size selector\n"));
TekSetFontSize(tw, False, (int) (c & 03));
Tparsestate = curstate;
break;
case CASE_BEAM_VEC:
TRACE(("case: beam and vector selector\n"));
/* only line types */
c = (IChar) (c & LINEMASK);
if (c != tekscr->cur.linetype) {
if (nplot > 0)
TekFlush(tw);
if (c <= TEKNUMLINES)
tekscr->cur.linetype = c;
}
Tparsestate = curstate;
break;
case CASE_CURSTATE:
Tparsestate = curstate;
break;
case CASE_PENUP:
TRACE(("case: Ipl: penup\n"));
tekscr->pen = PENUP;
break;
case CASE_PENDOWN:
TRACE(("case: Ipl: pendown\n"));
tekscr->pen = PENDOWN;
break;
case CASE_IPL_POINT:
TRACE(("case: Ipl: point\n"));
x = tekscr->cur_X;
y = tekscr->cur_Y;
if (c & NORTH)
y++;
else if (c & SOUTH)
y--;
if (c & EAST)
x++;
else if (c & WEST)
x--;
if (tekscr->pen == PENDOWN) {
TekDraw(tw, x, y);
} else {
TekMove(tw, x, y);
}
break;
case CASE_PLT_VEC:
TRACE(("case: Plt: vector\n"));
unput(c);
if (getpoint(tw)) {
if (tekscr->pen == PENDOWN) {
TekDraw(tw, tekscr->cur.x, tekscr->cur.y);
} else {
TekMove(tw, tekscr->cur.x, tekscr->cur.y);
}
tekscr->pen = PENDOWN;
}
break;
case CASE_PT_POINT:
TRACE(("case: Pt: point\n"));
unput(c);
if (getpoint(tw)) {
TekMove(tw, tekscr->cur.x, tekscr->cur.y);
TekDraw(tw, tekscr->cur.x, tekscr->cur.y);
}
break;
case CASE_SPT_POINT:
TRACE(("case: Spt: point\n"));
/* ignore intensity character in c */
if (getpoint(tw)) {
TekMove(tw, tekscr->cur.x, tekscr->cur.y);
TekDraw(tw, tekscr->cur.x, tekscr->cur.y);
}
break;
case CASE_CR:
TRACE(("case: CR\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
if (nplot > 0) /* flush line VTbuffer */
TekFlush(tw);
tekscr->cur_X = tekscr->margin == MARGIN1 ? 0 :
TEKWIDTH / 2;
Tparsestate = curstate = Talptable;
break;
case CASE_ESC_STATE:
TRACE(("case: ESC\n"));
Tparsestate = Tesctable;
break;
case CASE_LF:
TRACE(("case: LF\n"));
if (tekscr->TekGIN)
TekGINoff(tw);
TCursorDown(tw);
if (!tekRefreshList)
do_xevents(tw->vt);
break;
case CASE_SP:
TRACE(("case: SP\n"));
TCursorForward(tw);
break;
case CASE_PRINT:
TRACE(("case: printable character\n"));
ch = c;
x = (int) ScaledX(tw, tekscr->cur_X);
y = (int) ScaledY(tw, tekscr->cur_Y);
#if OPT_WIDE_CHARS
if (screen->wide_chars
&& (ch > 255)) {
XChar2b sbuf;
sbuf.byte2 = LO_BYTE(ch);
sbuf.byte1 = HI_BYTE(ch);
XDrawImageString16(XtDisplay(tw),
TWindow(tekscr),
tekscr->TnormalGC,
x,
y,
&sbuf,
1);
} else
#endif
{
char ch2 = (char) ch;
XDrawString(XtDisplay(tw),
TWindow(tekscr),
tekscr->TnormalGC,
x,
y,
&ch2,
1);
}
TCursorForward(tw);
break;
case CASE_OSC:
/* FIXME: someone should disentangle the input queues
* of this code so that it can be state-driven.
*/
TRACE(("case: do osc escape\n"));
{
/*
* do_osc() can call TekExpose(), which calls TekRefresh(),
* and sends us recurring here - don't do that...
*/
static int nested;
Char buf2[512];
IChar c2;
size_t len = 0;
while ((c2 = input()) != ANSI_BEL) {
if (!isprint(CharOf(c2 & 0x7f))
|| len + 2 >= (int) sizeof(buf2))
break;
buf2[len++] = (Char) c2;
}
buf2[len] = 0;
if (!nested++) {
if (c2 == ANSI_BEL)
do_osc(tw->vt, buf2, len, ANSI_BEL);
}
--nested;
}
Tparsestate = curstate;
break;
}
}
}
static int rcnt;
static char *rptr;
static PtySelect Tselect_mask;
static IChar
Tinput(TekWidget tw)
{
TekScreen *tekscr = TekScreenOf(tw);
TScreen *screen = TScreenOf(tw->vt);
TekLink *tek;
if (Tpushback > Tpushb)
return (*--Tpushback);
if (tekRefreshList) {
if (rcnt-- > 0)
return (IChar) (*rptr++);
if ((tek = tekRefreshList->next) != NULL) {
tekRefreshList = tek;
rptr = tek->data;
rcnt = tek->count - 1;
TekSetFontSize(tw, False, tek->fontsize);
return (IChar) (*rptr++);
}
tekRefreshList = (TekLink *) 0;
longjmp(Tekjump, 1);
}
again:
if (VTbuffer->next >= VTbuffer->last) {
int update = VTbuffer->update;
if (nplot > 0) /* flush line */
TekFlush(tw);
XFD_COPYSET(&pty_mask, &Tselect_mask);
for (;;) {
#ifdef CRAY
struct timeval crocktimeout;
crocktimeout.tv_sec = 0;
crocktimeout.tv_usec = 0;
(void) Select(max_plus1,
&Tselect_mask, NULL, NULL,
&crocktimeout);
#endif
if (readPtyData(tw->vt, &Tselect_mask, VTbuffer)) {
break;
}
if (Ttoggled && curstate == Talptable) {
TCursorToggle(tw, TOGGLE);
Ttoggled = False;
}
if (xtermAppPending() & XtIMXEvent) {
XFD_COPYSET(&X_mask, &Tselect_mask);
} else {
XFlush(XtDisplay(tw));
XFD_COPYSET(&Select_mask, &Tselect_mask);
if (Select(max_plus1, &Tselect_mask, NULL, NULL, NULL) < 0) {
if (errno != EINTR)
SysError(ERROR_TSELECT);
continue;
}
}
if (FD_ISSET(ConnectionNumber(XtDisplay(tw)), &Tselect_mask)) {
xevents(tw->vt);
if (VTbuffer->update != update)
goto again;
}
}
if (!Ttoggled && curstate == Talptable) {
TCursorToggle(tw, TOGGLE);
Ttoggled = True;
}
}
tek = TekRecord;
if (tek->count >= TEK_LINK_BLOCK_SIZE
|| tek->fontsize != tekscr->cur.fontsize) {
if ((TekRecord = tek->next = CastMalloc(TekLink)) == NULL) {
Panic("Tinput: malloc error (%d)\n", errno);
} else {
tek = tek->next;
tek->next = (TekLink *) 0;
tek->fontsize = (unsigned short) tekscr->cur.fontsize;
tek->count = 0;
tek->ptr = tek->data;
}
}
tek->count++;
(void) morePtyData(screen, VTbuffer);
return (IChar) (*tek->ptr++ = (char) nextPtyData(screen, VTbuffer));
}
static void
TekClear(TekWidget tw)
{
TekScreen *tekscr = TekScreenOf(tw);
TRACE(("TekClear\n"));
nplot = 0;
line_pt = Tline;
if (TWindow(tekscr))
XClearWindow(XtDisplay(tw), TWindow(tekscr));
}
void
TekSetWinSize(TekWidget tw)
{
if (TEK4014_ACTIVE(tw->vt)) {
TekScreen *tekscr = TekScreenOf(tw);
const struct Tek_Char *t = &TekChar[tekscr->cur.fontsize];
int rows = THeight(tekscr) / (int) (ScaleOf(tw) * t->vsize);
int cols = TWidth(tekscr) / (int) (ScaleOf(tw) * t->hsize);
update_winsize(TScreenOf(tw->vt),
rows, cols,
TFullHeight(tekscr),
TFullWidth(tekscr));
}
}
static void
compute_sizes(TekWidget tw)
{
TekScreen *tekscr = TekScreenOf(tw);
int border = 2 * BorderOf(tw);
double d;
#if OPT_TRACE
const struct Tek_Char *t = &TekChar[tekscr->cur.fontsize];
const XFontStruct *fs = tw->tek.Tfont[tekscr->cur.fontsize];
#endif
/* *INDENT-EQLS* */
TWidth(tekscr) = tw->core.width - border;
THeight(tekscr) = tw->core.height - border;
ScaleOf(tw) = (double) TWidth(tekscr) / TEKWIDTH;
if ((d = (double) THeight(tekscr) / FULL_HEIGHT) < ScaleOf(tw))
ScaleOf(tw) = d;
TFullWidth(tekscr) = tw->core.width;
TFullHeight(tekscr) = tw->core.height;
TRACE(("%s size %dx%d full %dx%d scale %.2f\n", MY_NAME,
THeight(tekscr), TWidth(tekscr),
TFullHeight(tekscr), TFullWidth(tekscr),
ScaleOf(tw)));
/* The tek4014 fonts always look odd since their spacing is overridden to
* get the "same" size as a real Tektronix terminal. TrueType fonts for
* these small sizes would be no better...
*/
TRACE(("unscaled font %dx%d\n", t->vsize, t->hsize));
TRACE(("scaled font %.1fx%.1f\n", d * t->vsize, d * t->hsize));
TRACE(("actual font %dx%d\n",
fs->max_bounds.ascent + fs->max_bounds.descent,
fs->max_bounds.width));
TekSetWinSize(tw);
}
static void
TekResize(Widget w)
{
TekWidget tw = getTekWidget(w);
if (tw != NULL) {
TRACE(("TekResize " TRACE_L "\n"));
TekClear(tw);
compute_sizes(tw);
TRACE((TRACE_R " TekResize\n"));
}
}
/*ARGSUSED*/
void
TekExpose(Widget w,
XEvent *event GCC_UNUSED,
Region region GCC_UNUSED)
{
TekWidget tw = getTekWidget(w);
if (tw != NULL) {
TekScreen *tekscr = TekScreenOf(tw);
TRACE(("TekExpose " TRACE_L "\n"));
#ifdef lint
region = region;
#endif
if (!Ttoggled)
TCursorToggle(tw, CLEAR);
Ttoggled = True;
Tpushback = Tpushb;
tekscr->cur_X = 0;
tekscr->cur_Y = TEKHOME;
tekscr->cur = tekscr->page;
TekSetFontSize(tw, False, tekscr->cur.fontsize);
tekscr->margin = MARGIN1;
if (tekscr->TekGIN) {
tekscr->TekGIN = NULL;
TekGINoff(tw);
}
tekRefreshList = &Tek0;
rptr = tekRefreshList->data;
rcnt = tekRefreshList->count;
Tparsestate = curstate = Talptable;
TRACE(("TekExpose resets data to replay %d bytes\n", rcnt));
first_map_occurred();
if (!tekscr->waitrefresh)
TekRefresh(tw);
TRACE((TRACE_R " TekExpose\n"));
}
}