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- /*
- * Copyright 1991 Massachusetts Institute of Technology
- *
- * 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, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
- * 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.
- *
- */
- /*
- * xditview --
- *
- * Display ditroff output in an X window
- */
-
- #ifndef SABER
- #ifndef lint
- static char rcsid[] = "$XConsortium: xditview.c,v 1.17 89/12/10 17:05:08 rws Exp $";
- #endif /* lint */
- #endif /* SABER */
-
- #include <X11/Xatom.h>
- #include <X11/Xlib.h>
- #include <X11/Xos.h>
- #include <X11/Intrinsic.h>
- #include <X11/StringDefs.h>
- #include <X11/Shell.h>
- #include <X11/Xaw/Paned.h>
- #include <X11/Xaw/Viewport.h>
- #include <X11/Xaw/Box.h>
- #include <X11/Xaw/Command.h>
- #include <X11/Xaw/Dialog.h>
- #include <X11/Xaw/Label.h>
- #include <X11/Xaw/SimpleMenu.h>
- #include <X11/Xaw/SmeBSB.h>
-
- #include <signal.h>
-
- #include "Dvi.h"
-
- #include "xdit.bm"
- #include "xdit_mask.bm"
- #include "stdio.h"
-
- extern FILE *popen();
- extern void exit();
-
- static struct app_resources {
- char *print_command;
- char *filename;
- } app_resources;
-
- #define offset(field) XtOffset(struct app_resources *, field)
-
- /* Application resources. */
-
- static XtResource resources[] = {
- {"printCommand", "PrintCommand", XtRString, sizeof(char*),
- offset(print_command), XtRString, NULL},
- {"filename", "Filename", XtRString, sizeof(char*),
- offset(filename), XtRString, NULL},
- };
-
- #undef offset
-
- /* Command line options table. Only resources are entered here...there is a
- pass over the remaining options after XtParseCommand is let loose. */
-
- static XrmOptionDescRec options[] = {
- {"-page", "*dvi.pageNumber", XrmoptionSepArg, NULL},
- {"-backingStore", "*dvi.backingStore", XrmoptionSepArg, NULL},
- {"-resolution", "*dvi.resolution", XrmoptionSepArg, NULL},
- {"-printCommand", ".printCommand", XrmoptionSepArg, NULL},
- {"-filename", ".filename", XrmoptionSepArg, NULL},
- {"-noPolyText", "*dvi.noPolyText", XrmoptionNoArg, "TRUE"},
- };
-
- static char current_print_command[1024];
-
- static char current_file_name[1024];
- static FILE *current_file;
-
- /*
- * Report the syntax for calling xditview.
- */
-
- static
- Syntax(call)
- char *call;
- {
- (void) printf ("Usage: %s [-fg <color>] [-bg <color>]\n", call);
- (void) printf (" [-bd <color>] [-bw <pixels>] [-help]\n");
- (void) printf (" [-display displayname] [-geometry geom]\n");
- (void) printf (" [-page <page-number>] [-backing <backing-store>]\n");
- (void) printf (" [-resolution <res>] [-print <command>]\n");
- (void) printf (" [-filename <file>] [filename]\n\n");
- exit(1);
- }
-
- static void NewFile (), SetPageNumber ();
- static Widget toplevel, paned, viewport, dvi;
- static Widget page;
- static Widget simpleMenu;
-
- static void NextPage(), PreviousPage(), SelectPage(), OpenFile(), Quit();
- static void Print();
-
- static struct menuEntry {
- char *name;
- void (*function)();
- } menuEntries[] = {
- "nextPage", NextPage,
- "previousPage", PreviousPage,
- "selectPage", SelectPage,
- "print", Print,
- "openFile", OpenFile,
- "quit", Quit,
- };
-
- static void NextPageAction(), PreviousPageAction(), SelectPageAction();
- static void OpenFileAction(), QuitAction();
- static void AcceptAction(), CancelAction();
- static void PrintAction();
- static void RerasterizeAction();
-
- XtActionsRec xditview_actions[] = {
- "NextPage", NextPageAction,
- "PreviousPage", PreviousPageAction,
- "SelectPage", SelectPageAction,
- "Print", PrintAction,
- "OpenFile", OpenFileAction,
- "Rerasterize", RerasterizeAction,
- "Quit", QuitAction,
- "Accept", AcceptAction,
- "Cancel", CancelAction,
- };
-
- #define MenuNextPage 0
- #define MenuPreviousPage 1
- #define MenuSelectPage 2
- #define MenuPrint 3
- #define MenuOpenFile 4
- #define MenuQuit 5
-
- static char pageLabel[256] = "Page <none>";
-
- void main(argc, argv)
- int argc;
- char **argv;
- {
- char *file_name = 0;
- int i;
- static Arg labelArgs[] = {
- {XtNlabel, (XtArgVal) pageLabel},
- };
- Arg topLevelArgs[2];
- Widget entry;
- Arg pageNumberArgs[1];
- int page_number;
-
- toplevel = XtInitialize("main", "GXditview",
- options, XtNumber (options),
- &argc, argv);
- if (argc > 2)
- Syntax(argv[0]);
-
- XtGetApplicationResources(toplevel, (XtPointer)&app_resources,
- resources, XtNumber(resources),
- NULL, (Cardinal) 0);
- if (app_resources.print_command)
- strcpy(current_print_command, app_resources.print_command);
-
- XtAppAddActions(XtWidgetToApplicationContext(toplevel),
- xditview_actions, XtNumber (xditview_actions));
-
- XtSetArg (topLevelArgs[0], XtNiconPixmap,
- XCreateBitmapFromData (XtDisplay (toplevel),
- XtScreen(toplevel)->root,
- xdit_bits, xdit_width, xdit_height));
-
- XtSetArg (topLevelArgs[1], XtNiconMask,
- XCreateBitmapFromData (XtDisplay (toplevel),
- XtScreen(toplevel)->root,
- xdit_mask_bits,
- xdit_mask_width, xdit_mask_height));
- XtSetValues (toplevel, topLevelArgs, 2);
- if (argc > 1)
- file_name = argv[1];
-
- /*
- * create the menu and insert the entries
- */
- simpleMenu = XtCreatePopupShell ("menu", simpleMenuWidgetClass, toplevel,
- NULL, 0);
- for (i = 0; i < XtNumber (menuEntries); i++) {
- entry = XtCreateManagedWidget(menuEntries[i].name,
- smeBSBObjectClass, simpleMenu,
- NULL, (Cardinal) 0);
- XtAddCallback(entry, XtNcallback, menuEntries[i].function, NULL);
- }
-
- paned = XtCreateManagedWidget("paned", panedWidgetClass, toplevel,
- NULL, (Cardinal) 0);
- viewport = XtCreateManagedWidget("viewport", viewportWidgetClass, paned,
- NULL, (Cardinal) 0);
- dvi = XtCreateManagedWidget ("dvi", dviWidgetClass, viewport, NULL, 0);
- page = XtCreateManagedWidget ("label", labelWidgetClass, paned,
- labelArgs, XtNumber (labelArgs));
- XtSetArg (pageNumberArgs[0], XtNpageNumber, &page_number);
- XtGetValues (dvi, pageNumberArgs, 1);
- if (file_name)
- NewFile (file_name);
- /* NewFile modifies current_file_name, so do this here. */
- if (app_resources.filename)
- strcpy(current_file_name, app_resources.filename);
- XtRealizeWidget (toplevel);
- if (file_name)
- SetPageNumber (page_number);
- XtMainLoop();
- }
-
- static void
- SetPageNumber (number)
- {
- Arg arg[2];
- int actual_number, last_page;
-
- XtSetArg (arg[0], XtNpageNumber, number);
- XtSetValues (dvi, arg, 1);
- XtSetArg (arg[0], XtNpageNumber, &actual_number);
- XtSetArg (arg[1], XtNlastPageNumber, &last_page);
- XtGetValues (dvi, arg, 2);
- if (actual_number == 0)
- sprintf (pageLabel, "Page <none>");
- else if (last_page > 0)
- sprintf (pageLabel, "Page %d of %d", actual_number, last_page);
- else
- sprintf (pageLabel, "Page %d", actual_number);
- XtSetArg (arg[0], XtNlabel, pageLabel);
- XtSetValues (page, arg, 1);
- }
-
- static void
- SelectPageNumber (number_string)
- char *number_string;
- {
- SetPageNumber (atoi(number_string));
- }
-
- static int hadFile = 0;
-
- static void
- NewFile (name)
- char *name;
- {
- Arg arg[2];
- char *n;
- FILE *new_file;
- Boolean seek = 0;
-
- if (current_file) {
- if (!strcmp (current_file_name, "-"))
- ;
- else if (current_file_name[0] == '|')
- pclose (current_file);
- else
- fclose (current_file);
- }
- if (!strcmp (name, "-"))
- new_file = stdin;
- else if (name[0] == '|')
- new_file = popen (name+1, "r");
- else {
- new_file = fopen (name, "r");
- seek = 1;
- }
- if (!new_file) {
- /* XXX display error message */
- return;
- }
- XtSetArg (arg[0], XtNfile, new_file);
- XtSetArg (arg[1], XtNseek, seek);
- XtSetValues (dvi, arg, 2);
- if (hadFile || name[0] != '-' || name[1] != '\0') {
- XtSetArg (arg[0], XtNtitle, name);
- if (name[0] != '/' && (n = strrchr (name, '/')))
- n = n + 1;
- else
- n = name;
- XtSetArg (arg[1], XtNiconName, n);
- XtSetValues (toplevel, arg, 2);
- }
- hadFile = 1;
- SelectPageNumber ("1");
- strcpy (current_file_name, name);
- current_file = new_file;
- }
-
- static char fileBuf[1024];
-
- ResetMenuEntry (entry)
- Widget entry;
- {
- Arg arg[1];
-
- XtSetArg (arg[0], XtNpopupOnEntry, entry);
- XtSetValues (XtParent(entry) , arg, (Cardinal) 1);
- }
-
- /*ARGSUSED*/
-
- static void
- NextPage (entry, name, data)
- Widget entry;
- caddr_t name, data;
- {
- NextPageAction();
- ResetMenuEntry (entry);
- }
-
- static void
- NextPageAction ()
- {
- Arg args[1];
- int number;
-
- XtSetArg (args[0], XtNpageNumber, &number);
- XtGetValues (dvi, args, 1);
- SetPageNumber (number+1);
- }
-
- /*ARGSUSED*/
-
- static void
- PreviousPage (entry, name, data)
- Widget entry;
- caddr_t name, data;
- {
- PreviousPageAction ();
- ResetMenuEntry (entry);
- }
-
- static void
- PreviousPageAction ()
- {
- Arg args[1];
- int number;
-
- XtSetArg (args[0], XtNpageNumber, &number);
- XtGetValues (dvi, args, 1);
- SetPageNumber (number-1);
- }
-
- /* ARGSUSED */
-
- static void
- SelectPage (entry, name, data)
- Widget entry;
- caddr_t name, data;
- {
- SelectPageAction ();
- ResetMenuEntry (entry);
- }
-
- static void
- SelectPageAction ()
- {
- MakePrompt (toplevel, "Page number", SelectPageNumber, "");
- }
-
-
- static void
- DoPrint (name)
- char *name;
- {
- FILE *print_file;
- #ifdef SIGNALRETURNSINT
- int (*handler)();
- #else
- void (*handler)();
- #endif
- /* Avoid dieing because of an invalid command. */
- handler = signal(SIGPIPE, SIG_IGN);
-
- print_file = popen(name, "w");
- if (!print_file)
- /* XXX print error message */
- return;
- DviSaveToFile(dvi, print_file);
- pclose(print_file);
- signal(SIGPIPE, handler);
- strcpy(current_print_command, name);
- }
-
- static void
- RerasterizeAction()
- {
- Arg args[1];
- int number;
-
- if (current_file_name[0] == 0) {
- /* XXX display an error message */
- return;
- }
- XtSetArg (args[0], XtNpageNumber, &number);
- XtGetValues (dvi, args, 1);
- NewFile(current_file_name);
- SetPageNumber (number);
- }
-
- /* ARGSUSED */
-
- static void
- Print (entry, name, data)
- Widget entry;
- caddr_t name, data;
- {
- PrintAction ();
- ResetMenuEntry (entry);
- }
-
- static void
- PrintAction ()
- {
- if (current_print_command[0])
- strcpy (fileBuf, current_print_command);
- else
- fileBuf[0] = '\0';
- MakePrompt (toplevel, "Print command:", DoPrint, fileBuf);
- }
-
-
- /* ARGSUSED */
-
- static void
- OpenFile (entry, name, data)
- Widget entry;
- caddr_t name, data;
- {
- OpenFileAction ();
- ResetMenuEntry (entry);
- }
-
- static void
- OpenFileAction ()
- {
- if (current_file_name[0])
- strcpy (fileBuf, current_file_name);
- else
- fileBuf[0] = '\0';
- MakePrompt (toplevel, "File to open:", NewFile, fileBuf);
- }
-
- /* ARGSUSED */
-
- static void
- Quit (entry, closure, data)
- Widget entry;
- caddr_t closure, data;
- {
- QuitAction ();
- }
-
- static void
- QuitAction ()
- {
- exit (0);
- }
-
- Widget promptShell, promptDialog;
- void (*promptfunction)();
-
- /* ARGSUSED */
- static
- void CancelAction (widget, event, params, num_params)
- Widget widget;
- XEvent *event;
- String *params;
- Cardinal *num_params;
- {
- if (promptShell) {
- XtSetKeyboardFocus(toplevel, (Widget) None);
- XtDestroyWidget(promptShell);
- promptShell = (Widget) 0;
- }
- }
-
- static
- void AcceptAction (widget, event, params, num_params)
- Widget widget;
- XEvent *event;
- String *params;
- Cardinal *num_params;
- {
- (*promptfunction)(XawDialogGetValueString(promptDialog));
- CancelAction (widget, event, params, num_params);
- }
-
- MakePrompt(centerw, prompt, func, def)
- Widget centerw;
- char *prompt;
- void (*func)();
- char *def;
- {
- static Arg dialogArgs[] = {
- {XtNlabel, NULL},
- {XtNvalue, NULL},
- };
- Arg valueArgs[1];
- Arg centerArgs[2];
- Position source_x, source_y;
- Position dest_x, dest_y;
- Dimension center_width, center_height;
- Dimension prompt_width, prompt_height;
- Widget valueWidget;
-
- CancelAction ((Widget)NULL, (XEvent *) 0, (String *) 0, (Cardinal *) 0);
- promptShell = XtCreatePopupShell ("promptShell", transientShellWidgetClass,
- toplevel, NULL, (Cardinal) 0);
- dialogArgs[0].value = (XtArgVal)prompt;
- dialogArgs[1].value = (XtArgVal)def;
- promptDialog = XtCreateManagedWidget( "promptDialog", dialogWidgetClass,
- promptShell, dialogArgs, XtNumber (dialogArgs));
- XawDialogAddButton(promptDialog, "accept", NULL, (caddr_t) 0);
- XawDialogAddButton(promptDialog, "cancel", NULL, (caddr_t) 0);
- valueWidget = XtNameToWidget (promptDialog, "value");
- if (valueWidget) {
- XtSetArg (valueArgs[0], XtNresizable, TRUE);
- XtSetValues (valueWidget, valueArgs, 1);
- /*
- * as resizable isn't set until just above, the
- * default value will be displayed incorrectly.
- * rectify the situation by resetting the values
- */
- XtSetValues (promptDialog, dialogArgs, XtNumber (dialogArgs));
- }
- XtSetKeyboardFocus (promptDialog, valueWidget);
- XtSetKeyboardFocus (toplevel, valueWidget);
- XtRealizeWidget (promptShell);
- /*
- * place the widget in the center of the "parent"
- */
- XtSetArg (centerArgs[0], XtNwidth, ¢er_width);
- XtSetArg (centerArgs[1], XtNheight, ¢er_height);
- XtGetValues (centerw, centerArgs, 2);
- XtSetArg (centerArgs[0], XtNwidth, &prompt_width);
- XtSetArg (centerArgs[1], XtNheight, &prompt_height);
- XtGetValues (promptShell, centerArgs, 2);
- source_x = (center_width - prompt_width) / 2;
- source_y = (center_height - prompt_height) / 3;
- XtTranslateCoords (centerw, source_x, source_y, &dest_x, &dest_y);
- XtSetArg (centerArgs[0], XtNx, dest_x);
- XtSetArg (centerArgs[1], XtNy, dest_y);
- XtSetValues (promptShell, centerArgs, 2);
- XtMapWidget(promptShell);
- promptfunction = func;
- }
-
- /* For DviChar.c */
-
- char *xmalloc(n)
- int n;
- {
- return XtMalloc(n);
- }
-
- /*
- Local Variables:
- c-indent-level: 4
- c-continued-statement-offset: 4
- c-brace-offset: -4
- c-argdecl-indent: 4
- c-label-offset: -4
- c-tab-always-indent: nil
- End:
- */
-