+/*
+ * xditview --
+ *
+ * Display ditroff output in an X window
+ */
+
+#ifndef lint
+static char rcsid[] = "$XConsortium: xditview.c,v 1.17 89/12/10 17:05:08 rws Exp $";
+#endif /* lint */
+
+#include <X11/Xatom.h>
+#include <X11/Xlib.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 "libXdvi/Dvi.h"
+
+#include "xdit.bm"
+#include "xdit_mask.bm"
+#include "stdio.h"
+
+extern FILE *popen();
+extern void exit();
+
+/* 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},
+{"-noPolyText", "*dvi.noPolyText", XrmoptionNoArg, "TRUE"},
+};
+
+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\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 struct menuEntry {
+ char *name;
+ void (*function)();
+} menuEntries[] = {
+ "nextPage", NextPage,
+ "previousPage", PreviousPage,
+ "selectPage", SelectPage,
+ "openFile", OpenFile,
+ "quit", Quit,
+};
+
+static void NextPageAction(), PreviousPageAction(), SelectPageAction();
+static void OpenFileAction(), QuitAction();
+static void AcceptAction(), CancelAction();
+
+XtActionsRec xditview_actions[] = {
+ "NextPage", NextPageAction,
+ "PreviousPage", PreviousPageAction,
+ "SelectPage", SelectPageAction,
+ "OpenFile", OpenFileAction,
+ "Quit", QuitAction,
+ "Accept", AcceptAction,
+ "Cancel", CancelAction,
+};
+
+#define MenuNextPage 0
+#define MenuPreviousPage 1
+#define MenuSelectPage 2
+#define MenuOpenFile 3
+#define MenuQuit 4
+
+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", "Xditview",
+ options, XtNumber (options),
+ &argc, argv);
+ if (argc > 2)
+ Syntax(argv[0]);
+
+ 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);
+ 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, *rindex ();
+ 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 = rindex (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);
+}
+
+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);
+}
+
+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);
+}
+
+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
+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);
+}
+
+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;
+ }
+}
+
+
+/* ARGSUSED */
+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 Boolean true = TRUE;
+ 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;
+}
+
+/*
+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:
+*/
projects / unix-history / commitdiff