2 * pterm - a fusion of the PuTTY terminal emulator with a Unix pty
3 * back end, all running as a GTK application. Wish me luck.
15 #include <gdk/gdkkeysyms.h>
17 #define PUTTY_DO_GLOBALS /* actually _define_ globals */
20 #define CAT2(x,y) x ## y
21 #define CAT(x,y) CAT2(x,y)
22 #define ASSERT(x) enum {CAT(assertion_,__LINE__) = 1 / (x)}
24 #define NCOLOURS (lenof(((Config *)0)->colours))
29 GdkFont *fonts[2]; /* normal and bold (for now!) */
30 GdkCursor *rawcursor, *textcursor;
31 GdkColor cols[NCOLOURS];
33 GdkGC *black_gc, *white_gc;
36 static struct gui_data the_inst;
37 static struct gui_data *inst = &the_inst; /* so we always write `inst->' */
38 static int send_raw_mouse;
40 void ldisc_update(int echo, int edit)
43 * This is a stub in pterm. If I ever produce a Unix
44 * command-line ssh/telnet/rlogin client (i.e. a port of plink)
45 * then it will require some termios manoeuvring analogous to
46 * that in the Windows plink.c, but here it's meaningless.
50 int askappend(char *filename)
53 * FIXME: for the moment we just wipe the log file. Since I
54 * haven't yet enabled logging, this shouldn't matter yet!
59 void logevent(char *string)
62 * FIXME: event log entries are currently ignored.
67 * Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
68 * into a cooked one (SELECT, EXTEND, PASTE).
70 * In Unix, this is not configurable; the X button arrangement is
71 * rock-solid across all applications, everyone has a three-button
72 * mouse or a means of faking it, and there is no need to switch
73 * buttons around at all.
75 Mouse_Button translate_button(Mouse_Button button)
77 if (button == MBT_LEFT)
79 if (button == MBT_MIDDLE)
81 if (button == MBT_RIGHT)
83 return 0; /* shouldn't happen */
87 * Minimise or restore the window in response to a server-side
90 void set_iconic(int iconic)
92 /* FIXME: currently ignored */
96 * Move the window in response to a server-side request.
98 void move_window(int x, int y)
100 /* FIXME: currently ignored */
104 * Move the window to the top or bottom of the z-order in response
105 * to a server-side request.
107 void set_zorder(int top)
109 /* FIXME: currently ignored */
113 * Refresh the window in response to a server-side request.
115 void refresh_window(void)
117 /* FIXME: currently ignored */
121 * Maximise or restore the window in response to a server-side
124 void set_zoomed(int zoomed)
126 /* FIXME: currently ignored */
130 * Report whether the window is iconic, for terminal reports.
134 return 0; /* FIXME */
138 * Report the window's position, for terminal reports.
140 void get_window_pos(int *x, int *y)
142 *x = 3; *y = 4; /* FIXME */
146 * Report the window's pixel size, for terminal reports.
148 void get_window_pixels(int *x, int *y)
150 *x = 1; *y = 2; /* FIXME */
154 * Return the window or icon title.
156 char *get_window_title(int icon)
158 return "FIXME: window title retrieval not yet implemented";
161 gint delete_window(GtkWidget *widget, GdkEvent *event, gpointer data)
164 * FIXME: warn on close?
169 gint configure_area(GtkWidget *widget, GdkEventConfigure *event, gpointer data)
171 struct gui_data *inst = (struct gui_data *)data;
174 gdk_pixmap_unref(inst->pixmap);
176 inst->pixmap = gdk_pixmap_new(widget->window, 9*80, 15*24, -1);
178 inst->fonts[0] = gdk_font_load("9x15t"); /* XXCONFIG */
179 inst->fonts[1] = NULL; /* XXCONFIG */
180 inst->black_gc = widget->style->black_gc;
181 inst->white_gc = widget->style->white_gc;
184 * Set up the colour map.
186 inst->colmap = gdk_colormap_get_system();
188 static const int ww[] = {
189 6, 7, 8, 9, 10, 11, 12, 13,
190 14, 15, 16, 17, 18, 19, 20, 21,
193 gboolean success[NCOLOURS];
196 assert(lenof(ww) == NCOLOURS);
198 for (i = 0; i < NCOLOURS; i++) {
199 inst->cols[i].red = cfg.colours[ww[i]][0] * 0x0101;
200 inst->cols[i].green = cfg.colours[ww[i]][1] * 0x0101;
201 inst->cols[i].blue = cfg.colours[ww[i]][2] * 0x0101;
204 gdk_colormap_alloc_colors(inst->colmap, inst->cols, NCOLOURS,
205 FALSE, FALSE, success);
206 for (i = 0; i < NCOLOURS; i++) {
208 g_error("pterm: couldn't allocate colour %d (#%02x%02x%02x)\n",
209 i, cfg.colours[i][0], cfg.colours[i][1], cfg.colours[i][2]);
216 gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data)
218 /* struct gui_data *inst = (struct gui_data *)data; */
221 * Pass the exposed rectangle to terminal.c, which will call us
222 * back to do the actual painting.
225 event->area.x / 9, event->area.y / 15,
226 (event->area.x + event->area.width - 1) / 9,
227 (event->area.y + event->area.height - 1) / 15);
231 #define KEY_PRESSED(k) \
232 (inst->keystate[(k) / 32] & (1 << ((k) % 32)))
234 gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
236 /* struct gui_data *inst = (struct gui_data *)data; */
240 if (event->type == GDK_KEY_PRESS) {
244 printf("keypress: keyval = %04x, state = %08x; string =",
245 event->keyval, event->state);
246 for (i = 0; event->string[i]; i++)
247 printf(" %02x", (unsigned char) event->string[i]);
254 * - Shift-PgUp/PgDn for scrollbar
257 * - Compose key (!!! requires Unicode faff before even trying)
258 * - Shift-Ins for paste (need to deal with pasting first)
261 /* ALT+things gives leading Escape. */
263 strncpy(output+1, event->string, 31);
265 end = strlen(output);
266 if (event->state & GDK_MOD1_MASK)
271 /* Control-` is the same as Control-\ (unless gtk has a better idea) */
272 if (!event->string[0] && event->keyval == '`' &&
273 (event->state & GDK_CONTROL_MASK)) {
278 /* Control-Break is the same as Control-C */
279 if (event->keyval == GDK_Break &&
280 (event->state & GDK_CONTROL_MASK)) {
285 /* Control-2, Control-Space and Control-@ are NUL */
286 if (!event->string[0] &&
287 (event->keyval == ' ' || event->keyval == '2' ||
288 event->keyval == '@') &&
289 (event->state & (GDK_SHIFT_MASK |
290 GDK_CONTROL_MASK)) == GDK_CONTROL_MASK) {
295 /* Control-Shift-Space is 160 (ISO8859 nonbreaking space) */
296 if (!event->string[0] && event->keyval == ' ' &&
297 (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) ==
298 (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) {
303 /* We don't let GTK tell us what Backspace is! We know better. */
304 if (event->keyval == GDK_BackSpace &&
305 !(event->state & GDK_SHIFT_MASK)) {
306 output[1] = cfg.bksp_is_delete ? '\x7F' : '\x08';
310 /* Shift-Tab is ESC [ Z */
311 if (event->keyval == GDK_ISO_Left_Tab ||
312 (event->keyval == GDK_Tab && (event->state & GDK_SHIFT_MASK))) {
313 end = 1 + sprintf(output+1, "\033[Z");
317 * Application keypad mode.
319 if (app_keypad_keys && !cfg.no_applic_k) {
321 switch (event->keyval) {
322 case GDK_Num_Lock: xkey = 'P'; break;
323 case GDK_KP_Divide: xkey = 'Q'; break;
324 case GDK_KP_Multiply: xkey = 'R'; break;
325 case GDK_KP_Subtract: xkey = 'S'; break;
327 * Keypad + is tricky. It covers a space that would
328 * be taken up on the VT100 by _two_ keys; so we
329 * let Shift select between the two. Worse still,
330 * in xterm function key mode we change which two...
333 if (cfg.funky_type == 2) {
334 if (event->state & GDK_SHIFT_MASK)
338 } else if (event->state & GDK_SHIFT_MASK)
343 case GDK_KP_Enter: xkey = 'M'; break;
344 case GDK_KP_0: case GDK_KP_Insert: xkey = 'p'; break;
345 case GDK_KP_1: case GDK_KP_End: xkey = 'q'; break;
346 case GDK_KP_2: case GDK_KP_Down: xkey = 'r'; break;
347 case GDK_KP_3: case GDK_KP_Page_Down: xkey = 's'; break;
348 case GDK_KP_4: case GDK_KP_Left: xkey = 't'; break;
349 case GDK_KP_5: case GDK_KP_Begin: xkey = 'u'; break;
350 case GDK_KP_6: case GDK_KP_Right: xkey = 'v'; break;
351 case GDK_KP_7: case GDK_KP_Home: xkey = 'w'; break;
352 case GDK_KP_8: case GDK_KP_Up: xkey = 'x'; break;
353 case GDK_KP_9: case GDK_KP_Page_Up: xkey = 'y'; break;
354 case GDK_KP_Decimal: case GDK_KP_Delete: xkey = 'n'; break;
358 if (xkey >= 'P' && xkey <= 'S')
359 end = 1 + sprintf(output+1, "\033%c", xkey);
361 end = 1 + sprintf(output+1, "\033?%c", xkey);
363 end = 1 + sprintf(output+1, "\033O%c", xkey);
369 * Next, all the keys that do tilde codes. (ESC '[' nn '~',
370 * for integer decimal nn.)
372 * We also deal with the weird ones here. Linux VCs replace F1
373 * to F5 by ESC [ [ A to ESC [ [ E. rxvt doesn't do _that_, but
374 * does replace Home and End (1~ and 4~) by ESC [ H and ESC O w
379 switch (event->keyval) {
381 code = (event->state & GDK_SHIFT_MASK ? 23 : 11);
384 code = (event->state & GDK_SHIFT_MASK ? 24 : 12);
387 code = (event->state & GDK_SHIFT_MASK ? 25 : 13);
390 code = (event->state & GDK_SHIFT_MASK ? 26 : 14);
393 code = (event->state & GDK_SHIFT_MASK ? 28 : 15);
396 code = (event->state & GDK_SHIFT_MASK ? 29 : 17);
399 code = (event->state & GDK_SHIFT_MASK ? 31 : 18);
402 code = (event->state & GDK_SHIFT_MASK ? 32 : 19);
405 code = (event->state & GDK_SHIFT_MASK ? 33 : 20);
408 code = (event->state & GDK_SHIFT_MASK ? 34 : 21);
441 if (!(event->state & GDK_CONTROL_MASK)) switch (event->keyval) {
442 case GDK_Home: case GDK_KP_Home:
445 case GDK_Insert: case GDK_KP_Insert:
448 case GDK_Delete: case GDK_KP_Delete:
451 case GDK_End: case GDK_KP_End:
454 case GDK_Page_Up: case GDK_KP_Page_Up:
457 case GDK_Page_Down: case GDK_KP_Page_Down:
461 /* Reorder edit keys to physical order */
462 if (cfg.funky_type == 3 && code <= 6)
463 code = "\0\2\1\4\5\3\6"[code];
465 if (vt52_mode && code > 0 && code <= 6) {
466 end = 1 + sprintf(output+1, "\x1B%c", " HLMEIG"[code]);
470 if (cfg.funky_type == 5 && /* SCO function keys */
471 code >= 11 && code <= 34) {
472 char codes[] = "MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@[\\]^_`{";
474 switch (event->keyval) {
475 case GDK_F1: index = 0; break;
476 case GDK_F2: index = 1; break;
477 case GDK_F3: index = 2; break;
478 case GDK_F4: index = 3; break;
479 case GDK_F5: index = 4; break;
480 case GDK_F6: index = 5; break;
481 case GDK_F7: index = 6; break;
482 case GDK_F8: index = 7; break;
483 case GDK_F9: index = 8; break;
484 case GDK_F10: index = 9; break;
485 case GDK_F11: index = 10; break;
486 case GDK_F12: index = 11; break;
488 if (event->state & GDK_SHIFT_MASK) index += 12;
489 if (event->state & GDK_CONTROL_MASK) index += 24;
490 end = 1 + sprintf(output+1, "\x1B[%c", codes[index]);
493 if (cfg.funky_type == 5 && /* SCO small keypad */
494 code >= 1 && code <= 6) {
495 char codes[] = "HL.FIG";
500 end = 1 + sprintf(output+1, "\x1B[%c", codes[code-1]);
504 if ((vt52_mode || cfg.funky_type == 4) && code >= 11 && code <= 24) {
511 end = 1 + sprintf(output+1,
512 "\x1B%c", code + 'P' - 11 - offt);
514 end = 1 + sprintf(output+1,
515 "\x1BO%c", code + 'P' - 11 - offt);
518 if (cfg.funky_type == 1 && code >= 11 && code <= 15) {
519 end = 1 + sprintf(output+1, "\x1B[[%c", code + 'A' - 11);
522 if (cfg.funky_type == 2 && code >= 11 && code <= 14) {
524 end = 1 + sprintf(output+1, "\x1B%c", code + 'P' - 11);
526 end = 1 + sprintf(output+1, "\x1BO%c", code + 'P' - 11);
529 if (cfg.rxvt_homeend && (code == 1 || code == 4)) {
530 end = 1 + sprintf(output+1, code == 1 ? "\x1B[H" : "\x1BOw");
534 end = 1 + sprintf(output+1, "\x1B[%d~", code);
540 * Cursor keys. (This includes the numberpad cursor keys,
541 * if we haven't already done them due to app keypad mode.)
543 * Here we also process un-numlocked un-appkeypadded KP5,
544 * which sends ESC [ G.
548 switch (event->keyval) {
549 case GDK_Up: case GDK_KP_Up: xkey = 'A'; break;
550 case GDK_Down: case GDK_KP_Down: xkey = 'B'; break;
551 case GDK_Right: case GDK_KP_Right: xkey = 'C'; break;
552 case GDK_Left: case GDK_KP_Left: xkey = 'D'; break;
553 case GDK_Begin: case GDK_KP_Begin: xkey = 'G'; break;
557 * The arrow keys normally do ESC [ A and so on. In
558 * app cursor keys mode they do ESC O A instead.
559 * Ctrl toggles the two modes.
562 end = 1 + sprintf(output+1, "\033%c", xkey);
563 } else if (!app_cursor_keys ^
564 !(event->state & GDK_CONTROL_MASK)) {
565 end = 1 + sprintf(output+1, "\033O%c", xkey);
567 end = 1 + sprintf(output+1, "\033[%c", xkey);
578 printf("generating sequence:");
579 for (i = start; i < end; i++)
580 printf(" %02x", (unsigned char) output[i]);
584 ldisc_send(output+start, end-start, 1);
591 gint timer_func(gpointer data)
593 /* struct gui_data *inst = (struct gui_data *)data; */
599 void pty_input_func(gpointer data, gint sourcefd, GdkInputCondition condition)
601 /* struct gui_data *inst = (struct gui_data *)data; */
605 ret = read(sourcefd, buf, sizeof(buf));
608 * Clean termination condition is that either ret == 0, or ret
609 * < 0 and errno == EIO. Not sure why the latter, but it seems
612 if (ret == 0 || (ret < 0 && errno == EIO)) {
617 perror("read pty master");
621 from_backend(0, buf, ret);
625 void destroy(GtkWidget *widget, gpointer data)
630 gint focus_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
632 has_focus = event->in;
639 * set or clear the "raw mouse message" mode
641 void set_raw_mouse_mode(int activate)
643 activate = activate && !cfg.no_mouse_rep;
644 send_raw_mouse = activate;
646 gdk_window_set_cursor(inst->area->window, inst->rawcursor);
648 gdk_window_set_cursor(inst->area->window, inst->textcursor);
651 void request_resize(int w, int h)
653 /* FIXME: currently ignored */
656 void palette_set(int n, int r, int g, int b)
658 /* FIXME: currently ignored */
660 void palette_reset(void)
662 /* FIXME: currently ignored */
665 void write_clip(wchar_t * data, int len, int must_deselect)
667 /* FIXME: currently ignored */
670 void get_clip(wchar_t ** p, int *len)
673 /* FIXME: currently nonfunctional */
679 void set_title(char *title)
681 /* FIXME: currently ignored */
684 void set_icon(char *title)
686 /* FIXME: currently ignored */
689 void set_sbar(int total, int start, int page)
691 /* FIXME: currently ignored */
694 void sys_cursor(int x, int y)
697 * This is meaningless under X.
706 int CharWidth(Context ctx, int uc)
709 * Under X, any fixed-width font really _is_ fixed-width.
710 * Double-width characters will be dealt with using a separate
711 * font. For the moment we can simply return 1.
716 Context get_ctx(void)
719 if (!inst->area->window)
721 gc = gdk_gc_new(inst->area->window);
725 void free_ctx(Context ctx)
727 GdkGC *gc = (GdkGC *)ctx;
732 * Draw a line of text in the window, at given character
733 * coordinates, in given attributes.
735 * We are allowed to fiddle with the contents of `text'.
737 void do_text(Context ctx, int x, int y, char *text, int len,
738 unsigned long attr, int lattr)
741 GdkGC *gc = (GdkGC *)ctx;
745 * - ATTR_WIDE (is this for Unicode CJK? I hope so)
746 * - LATTR_* (ESC # 4 double-width and double-height stuff)
747 * - cursor shapes other than block
748 * - VT100 line drawing stuff; code pages in general!
753 nfg = 2 * ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
754 nbg = 2 * ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
755 if (attr & ATTR_REVERSE) {
760 if (cfg.bold_colour && (attr & ATTR_BOLD))
762 if (cfg.bold_colour && (attr & ATTR_BLINK))
764 if (attr & TATTR_ACTCURS) {
769 gdk_gc_set_foreground(gc, &inst->cols[nbg]);
770 gdk_draw_rectangle(inst->pixmap, gc, 1, x*9, y*15, len*9, 15);
772 gdk_gc_set_foreground(gc, &inst->cols[nfg]);
773 gdk_draw_text(inst->pixmap, inst->fonts[0], gc,
774 x*9, y*15 + inst->fonts[0]->ascent, text, len);
776 if (attr & ATTR_UNDER) {
777 int uheight = inst->fonts[0]->ascent + 1;
780 gdk_draw_line(inst->pixmap, gc, x*9, y*15 + uheight,
781 (x+len)*9-1, y*15+uheight);
784 gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
785 x*9, y*15, x*9, y*15, len*9, 15);
788 void do_cursor(Context ctx, int x, int y, char *text, int len,
789 unsigned long attr, int lattr)
792 GdkGC *gc = (GdkGC *)ctx;
795 * NYI: cursor shapes other than block
797 if (attr & TATTR_PASCURS) {
798 attr &= ~TATTR_PASCURS;
802 do_text(ctx, x, y, text, len, attr, lattr);
804 gdk_gc_set_foreground(gc, &inst->cols[NCOLOURS-1]);
805 gdk_draw_rectangle(inst->pixmap, gc, 0, x*9, y*15, len*9-1, 15-1);
806 gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
807 x*9, y*15, x*9, y*15, len*9, 15);
811 void modalfatalbox(char *p, ...)
814 fprintf(stderr, "FATAL ERROR: ");
816 vfprintf(stderr, p, ap);
822 int main(int argc, char **argv)
825 extern int pty_master_fd; /* declared in pty.c */
827 gtk_init(&argc, &argv);
829 do_defaults(NULL, &cfg);
834 back->init(NULL, 0, NULL, 0);
836 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
837 inst->area = gtk_drawing_area_new();
838 gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area),
839 9*80, 15*24);/* FIXME: proper resizing stuff */
841 gtk_container_add(GTK_CONTAINER(window), inst->area);
843 gtk_signal_connect(GTK_OBJECT(window), "destroy",
844 GTK_SIGNAL_FUNC(destroy), inst);
845 gtk_signal_connect(GTK_OBJECT(window), "delete_event",
846 GTK_SIGNAL_FUNC(delete_window), inst);
847 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
848 GTK_SIGNAL_FUNC(key_event), inst);
849 gtk_signal_connect(GTK_OBJECT(window), "focus_in_event",
850 GTK_SIGNAL_FUNC(focus_event), inst);
851 gtk_signal_connect(GTK_OBJECT(window), "focus_out_event",
852 GTK_SIGNAL_FUNC(focus_event), inst);
853 gtk_signal_connect(GTK_OBJECT(inst->area), "configure_event",
854 GTK_SIGNAL_FUNC(configure_area), inst);
855 gtk_signal_connect(GTK_OBJECT(inst->area), "expose_event",
856 GTK_SIGNAL_FUNC(expose_area), inst);
857 gtk_timeout_add(20, timer_func, inst);
858 gdk_input_add(pty_master_fd, GDK_INPUT_READ, pty_input_func, inst);
859 gtk_widget_add_events(GTK_WIDGET(inst->area),
860 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
862 gtk_widget_show(inst->area);
863 gtk_widget_show(window);
865 inst->textcursor = gdk_cursor_new(GDK_XTERM);
866 inst->rawcursor = gdk_cursor_new(GDK_ARROW);
867 gdk_window_set_cursor(inst->area->window, inst->textcursor);
870 term_size(24, 80, 2000);