2 * gtk.c: GTK front end for my puzzle collection.
15 #include <gdk/gdkkeysyms.h>
19 #include <X11/Xutil.h>
20 #include <X11/Xatom.h>
24 /* ----------------------------------------------------------------------
25 * Error reporting functions used elsewhere.
28 void fatal(char *fmt, ...)
32 fprintf(stderr, "fatal error: ");
35 vfprintf(stderr, fmt, ap);
38 fprintf(stderr, "\n");
42 /* ----------------------------------------------------------------------
43 * GTK front end to puzzles.
53 * This structure holds all the data relevant to a single window.
54 * In principle this would allow us to open multiple independent
55 * puzzle windows, although I can't currently see any real point in
56 * doing so. I'm just coding cleanly because there's no
57 * particularly good reason not to.
71 int bbox_l, bbox_r, bbox_u, bbox_d;
72 int timer_active, timer_id;
73 struct timeval last_time;
77 int cfg_which, cfgret;
84 void get_random_seed(void **randseed, int *randseedsize)
86 struct timeval *tvp = snew(struct timeval);
87 gettimeofday(tvp, NULL);
88 *randseed = (void *)tvp;
89 *randseedsize = sizeof(struct timeval);
92 void frontend_default_colour(frontend *fe, float *output)
94 GdkColor col = fe->window->style->bg[GTK_STATE_NORMAL];
95 output[0] = col.red / 65535.0;
96 output[1] = col.green / 65535.0;
97 output[2] = col.blue / 65535.0;
100 void status_bar(frontend *fe, char *text)
104 assert(fe->statusbar);
106 rewritten = midend_rewrite_statusbar(fe->me, text);
107 if (!fe->laststatus || strcmp(rewritten, fe->laststatus)) {
108 gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
109 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, rewritten);
110 sfree(fe->laststatus);
111 fe->laststatus = rewritten;
117 void start_draw(frontend *fe)
119 fe->gc = gdk_gc_new(fe->area->window);
126 void clip(frontend *fe, int x, int y, int w, int h)
135 gdk_gc_set_clip_rectangle(fe->gc, &rect);
138 void unclip(frontend *fe)
147 gdk_gc_set_clip_rectangle(fe->gc, &rect);
150 void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
151 int align, int colour, char *text)
156 * Find or create the font.
158 for (i = 0; i < fe->nfonts; i++)
159 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
162 if (i == fe->nfonts) {
163 if (fe->fontsize <= fe->nfonts) {
164 fe->fontsize = fe->nfonts + 10;
165 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
170 fe->fonts[i].type = fonttype;
171 fe->fonts[i].size = fontsize;
173 #if GTK_CHECK_VERSION(2,0,0)
175 * Use Pango to find the closest match to the requested
179 PangoFontDescription *fd;
181 fd = pango_font_description_new();
182 /* `Monospace' and `Sans' are meta-families guaranteed to exist */
183 pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
184 "Monospace" : "Sans");
185 pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
187 * I found some online Pango documentation which
188 * described a function called
189 * pango_font_description_set_absolute_size(), which is
190 * _exactly_ what I want here. Unfortunately, none of
191 * my local Pango installations have it (presumably
192 * they're too old), so I'm going to have to hack round
193 * it by figuring out the point size myself. This
194 * limits me to X and probably also breaks in later
195 * Pango installations, so ideally I should add another
196 * CHECK_VERSION type ifdef and use set_absolute_size
197 * where available. All very annoying.
199 #ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
200 pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
203 Display *d = GDK_DISPLAY();
204 int s = DefaultScreen(d);
206 (PANGO_SCALE * 72.27 / 25.4) *
207 ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
208 pango_font_description_set_size(fd, resolution * fontsize);
211 fe->fonts[i].font = gdk_font_from_description(fd);
212 pango_font_description_free(fd);
215 if (!fe->fonts[i].font)
218 * In GTK 1.2, I don't know of any plausible way to
219 * pick a suitable font, so I'm just going to be
222 * This is also fallback code called if the Pango
223 * approach fails to find an appropriate font.
225 fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
226 "fixed" : "variable");
230 * Find string dimensions and process alignment.
233 int lb, rb, wid, asc, desc;
236 * Measure vertical string extents with respect to the same
239 gdk_string_extents(fe->fonts[i].font,
240 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
241 &lb, &rb, &wid, &asc, &desc);
242 if (align & ALIGN_VCENTRE)
243 y += asc - (asc+desc)/2;
246 * ... but horizontal extents with respect to the provided
247 * string. This means that multiple pieces of text centred
248 * on the same y-coordinate don't have different baselines.
250 gdk_string_extents(fe->fonts[i].font, text,
251 &lb, &rb, &wid, &asc, &desc);
253 if (align & ALIGN_HCENTRE)
255 else if (align & ALIGN_HRIGHT)
261 * Set colour and actually draw text.
263 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
264 gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
267 void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
269 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
270 gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
273 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
275 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
276 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
279 void draw_polygon(frontend *fe, int *coords, int npoints,
280 int fill, int colour)
282 GdkPoint *points = snewn(npoints, GdkPoint);
285 for (i = 0; i < npoints; i++) {
286 points[i].x = coords[i*2];
287 points[i].y = coords[i*2+1];
290 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
291 gdk_draw_polygon(fe->pixmap, fe->gc, fill, points, npoints);
296 void draw_update(frontend *fe, int x, int y, int w, int h)
298 if (fe->bbox_l > x ) fe->bbox_l = x ;
299 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
300 if (fe->bbox_u > y ) fe->bbox_u = y ;
301 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
304 void end_draw(frontend *fe)
306 gdk_gc_unref(fe->gc);
309 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
310 gdk_draw_pixmap(fe->area->window,
311 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
313 fe->bbox_l, fe->bbox_u,
314 fe->bbox_l, fe->bbox_u,
315 fe->bbox_r - fe->bbox_l, fe->bbox_d - fe->bbox_u);
319 static void destroy(GtkWidget *widget, gpointer data)
321 frontend *fe = (frontend *)data;
322 deactivate_timer(fe);
326 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
328 frontend *fe = (frontend *)data;
330 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
331 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
336 if (event->keyval == GDK_Up)
337 keyval = shift | ctrl | CURSOR_UP;
338 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
339 keyval = MOD_NUM_KEYPAD | '8';
340 else if (event->keyval == GDK_Down)
341 keyval = shift | ctrl | CURSOR_DOWN;
342 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
343 keyval = MOD_NUM_KEYPAD | '2';
344 else if (event->keyval == GDK_Left)
345 keyval = shift | ctrl | CURSOR_LEFT;
346 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
347 keyval = MOD_NUM_KEYPAD | '4';
348 else if (event->keyval == GDK_Right)
349 keyval = shift | ctrl | CURSOR_RIGHT;
350 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
351 keyval = MOD_NUM_KEYPAD | '6';
352 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
353 keyval = MOD_NUM_KEYPAD | '7';
354 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
355 keyval = MOD_NUM_KEYPAD | '1';
356 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
357 keyval = MOD_NUM_KEYPAD | '9';
358 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
359 keyval = MOD_NUM_KEYPAD | '3';
360 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
361 keyval = MOD_NUM_KEYPAD | '0';
362 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
363 keyval = MOD_NUM_KEYPAD | '5';
364 else if (event->string[0] && !event->string[1])
365 keyval = (unsigned char)event->string[0];
370 !midend_process_key(fe->me, 0, 0, keyval))
371 gtk_widget_destroy(fe->window);
376 static gint button_event(GtkWidget *widget, GdkEventButton *event,
379 frontend *fe = (frontend *)data;
385 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
388 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
389 button = MIDDLE_BUTTON;
390 else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
391 button = RIGHT_BUTTON;
392 else if (event->button == 1)
393 button = LEFT_BUTTON;
395 return FALSE; /* don't even know what button! */
397 if (event->type == GDK_BUTTON_RELEASE)
398 button += LEFT_RELEASE - LEFT_BUTTON;
400 if (!midend_process_key(fe->me, event->x, event->y, button))
401 gtk_widget_destroy(fe->window);
406 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
409 frontend *fe = (frontend *)data;
415 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
416 button = MIDDLE_DRAG;
417 else if (event->state & GDK_BUTTON1_MASK)
419 else if (event->state & GDK_BUTTON3_MASK)
422 return FALSE; /* don't even know what button! */
424 if (!midend_process_key(fe->me, event->x, event->y, button))
425 gtk_widget_destroy(fe->window);
430 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
433 frontend *fe = (frontend *)data;
436 gdk_draw_pixmap(widget->window,
437 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
439 event->area.x, event->area.y,
440 event->area.x, event->area.y,
441 event->area.width, event->area.height);
446 static gint map_window(GtkWidget *widget, GdkEvent *event,
449 frontend *fe = (frontend *)data;
452 * Apparently we need to do this because otherwise the status
453 * bar will fail to update immediately. Annoying, but there we
456 gtk_widget_queue_draw(fe->window);
461 static gint configure_area(GtkWidget *widget,
462 GdkEventConfigure *event, gpointer data)
464 frontend *fe = (frontend *)data;
468 gdk_pixmap_unref(fe->pixmap);
470 fe->pixmap = gdk_pixmap_new(widget->window, fe->w, fe->h, -1);
472 gc = gdk_gc_new(fe->area->window);
473 gdk_gc_set_foreground(gc, &fe->colours[0]);
474 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->w, fe->h);
477 midend_force_redraw(fe->me);
482 static gint timer_func(gpointer data)
484 frontend *fe = (frontend *)data;
486 if (fe->timer_active) {
489 gettimeofday(&now, NULL);
490 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
491 (now.tv_sec - fe->last_time.tv_sec));
492 midend_timer(fe->me, elapsed); /* may clear timer_active */
496 return fe->timer_active;
499 void deactivate_timer(frontend *fe)
501 if (fe->timer_active)
502 gtk_timeout_remove(fe->timer_id);
503 fe->timer_active = FALSE;
506 void activate_timer(frontend *fe)
508 if (!fe->timer_active) {
509 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
510 gettimeofday(&fe->last_time, NULL);
512 fe->timer_active = TRUE;
515 static void window_destroy(GtkWidget *widget, gpointer data)
520 static void errmsg_button_clicked(GtkButton *button, gpointer data)
522 gtk_widget_destroy(GTK_WIDGET(data));
525 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
527 GtkObject *cancelbutton = GTK_OBJECT(data);
530 * `Escape' effectively clicks the cancel button
532 if (event->keyval == GDK_Escape) {
533 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
540 void message_box(GtkWidget *parent, char *title, char *msg, int centre)
542 GtkWidget *window, *hbox, *text, *ok;
544 window = gtk_dialog_new();
545 text = gtk_label_new(msg);
546 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
547 hbox = gtk_hbox_new(FALSE, 0);
548 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
549 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
550 hbox, FALSE, FALSE, 20);
551 gtk_widget_show(text);
552 gtk_widget_show(hbox);
553 gtk_window_set_title(GTK_WINDOW(window), title);
554 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
555 ok = gtk_button_new_with_label("OK");
556 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
557 ok, FALSE, FALSE, 0);
559 GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
560 gtk_window_set_default(GTK_WINDOW(window), ok);
561 gtk_signal_connect(GTK_OBJECT(ok), "clicked",
562 GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
563 gtk_signal_connect(GTK_OBJECT(window), "destroy",
564 GTK_SIGNAL_FUNC(window_destroy), NULL);
565 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
566 GTK_SIGNAL_FUNC(win_key_press), ok);
567 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
568 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
569 /* set_transient_window_pos(parent, window); */
570 gtk_widget_show(window);
574 void error_box(GtkWidget *parent, char *msg)
576 message_box(parent, "Error", msg, FALSE);
579 static void config_ok_button_clicked(GtkButton *button, gpointer data)
581 frontend *fe = (frontend *)data;
584 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
587 error_box(fe->cfgbox, err);
590 gtk_widget_destroy(fe->cfgbox);
594 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
596 frontend *fe = (frontend *)data;
598 gtk_widget_destroy(fe->cfgbox);
601 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
604 * GtkEntry has a nasty habit of eating the Return key, which
605 * is unhelpful since it doesn't actually _do_ anything with it
606 * (it calls gtk_widget_activate, but our edit boxes never need
607 * activating). So I catch Return before GtkEntry sees it, and
608 * pass it straight on to the parent widget. Effect: hitting
609 * Return in an edit box will now activate the default button
610 * in the dialog just like it will everywhere else.
612 if (event->keyval == GDK_Return && widget->parent != NULL) {
614 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
615 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
622 static void editbox_changed(GtkEditable *ed, gpointer data)
624 config_item *i = (config_item *)data;
627 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
630 static void button_toggled(GtkToggleButton *tb, gpointer data)
632 config_item *i = (config_item *)data;
634 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
637 static void droplist_sel(GtkMenuItem *item, gpointer data)
639 config_item *i = (config_item *)data;
641 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
645 static int get_config(frontend *fe, int which)
647 GtkWidget *w, *table, *cancel;
652 fe->cfg = midend_get_config(fe->me, which, &title);
653 fe->cfg_which = which;
656 fe->cfgbox = gtk_dialog_new();
657 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
660 w = gtk_button_new_with_label("OK");
661 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
664 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
665 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
666 gtk_signal_connect(GTK_OBJECT(w), "clicked",
667 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
669 w = gtk_button_new_with_label("Cancel");
670 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
673 gtk_signal_connect(GTK_OBJECT(w), "clicked",
674 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
677 table = gtk_table_new(1, 2, FALSE);
679 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
680 table, FALSE, FALSE, 0);
681 gtk_widget_show(table);
683 for (i = fe->cfg; i->type != C_END; i++) {
684 gtk_table_resize(GTK_TABLE(table), y+1, 2);
689 * Edit box with a label beside it.
692 w = gtk_label_new(i->name);
693 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
694 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
695 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
696 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
701 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
702 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
703 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
705 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
706 gtk_signal_connect(GTK_OBJECT(w), "changed",
707 GTK_SIGNAL_FUNC(editbox_changed), i);
708 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
709 GTK_SIGNAL_FUNC(editbox_key), NULL);
718 w = gtk_check_button_new_with_label(i->name);
719 gtk_signal_connect(GTK_OBJECT(w), "toggled",
720 GTK_SIGNAL_FUNC(button_toggled), i);
721 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
722 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
723 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
725 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
731 * Drop-down list (GtkOptionMenu).
734 w = gtk_label_new(i->name);
735 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
736 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
737 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
738 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
742 w = gtk_option_menu_new();
743 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
744 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
745 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
753 GtkWidget *menu = gtk_menu_new();
755 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
763 while (*q && *q != c)
766 name = snewn(q-p+1, char);
767 strncpy(name, p, q-p);
770 if (*q) q++; /* eat delimiter */
772 menuitem = gtk_menu_item_new_with_label(name);
773 gtk_container_add(GTK_CONTAINER(menu), menuitem);
774 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
775 GINT_TO_POINTER(val));
776 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
777 GTK_SIGNAL_FUNC(droplist_sel), i);
778 gtk_widget_show(menuitem);
785 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
794 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
795 GTK_SIGNAL_FUNC(window_destroy), NULL);
796 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
797 GTK_SIGNAL_FUNC(win_key_press), cancel);
798 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
799 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
800 GTK_WINDOW(fe->window));
801 /* set_transient_window_pos(fe->window, fe->cfgbox); */
802 gtk_widget_show(fe->cfgbox);
810 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
812 frontend *fe = (frontend *)data;
813 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
815 if (!midend_process_key(fe->me, 0, 0, key))
816 gtk_widget_destroy(fe->window);
819 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
821 frontend *fe = (frontend *)data;
822 game_params *params =
823 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
826 midend_set_params(fe->me, params);
827 midend_new_game(fe->me);
828 midend_size(fe->me, &x, &y);
829 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
834 GdkAtom compound_text_atom, utf8_string_atom;
835 int paste_initialised = FALSE;
839 unsigned char empty[] = { 0 };
841 if (paste_initialised)
844 if (!compound_text_atom)
845 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
846 if (!utf8_string_atom)
847 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
850 * Ensure that all the cut buffers exist - according to the
851 * ICCCM, we must do this before we start using cut buffers.
853 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
854 XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, empty, 0);
855 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
856 XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, empty, 0);
857 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
858 XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, empty, 0);
859 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
860 XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, empty, 0);
861 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
862 XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, empty, 0);
863 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
864 XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, empty, 0);
865 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
866 XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, empty, 0);
867 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
868 XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, empty, 0);
871 /* Store data in a cut-buffer. */
872 void store_cutbuffer(char *ptr, int len)
874 /* ICCCM says we must rotate the buffers before storing to buffer 0. */
875 XRotateBuffers(GDK_DISPLAY(), 1);
876 XStoreBytes(GDK_DISPLAY(), ptr, len);
879 void write_clip(frontend *fe, char *data)
884 sfree(fe->paste_data);
887 * For this simple application we can safely assume that the
888 * data passed to this function is pure ASCII, which means we
889 * can return precisely the same stuff for types STRING,
890 * COMPOUND_TEXT or UTF8_STRING.
893 fe->paste_data = data;
894 fe->paste_data_len = strlen(data);
896 store_cutbuffer(fe->paste_data, fe->paste_data_len);
898 if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
900 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
901 GDK_SELECTION_TYPE_STRING, 1);
902 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
903 compound_text_atom, 1);
904 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
905 utf8_string_atom, 1);
909 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
910 guint info, guint time_stamp, gpointer data)
912 frontend *fe = (frontend *)data;
913 gtk_selection_data_set(seldata, seldata->target, 8,
914 fe->paste_data, fe->paste_data_len);
917 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
920 frontend *fe = (frontend *)data;
923 sfree(fe->paste_data);
924 fe->paste_data = NULL;
925 fe->paste_data_len = 0;
929 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
931 frontend *fe = (frontend *)data;
934 text = midend_text_format(fe->me);
937 write_clip(fe, text);
943 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
945 frontend *fe = (frontend *)data;
948 msg = midend_solve(fe->me);
951 error_box(fe->window, msg);
954 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
956 frontend *fe = (frontend *)data;
958 midend_restart_game(fe->me);
961 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
963 frontend *fe = (frontend *)data;
964 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
968 if (!get_config(fe, which))
971 midend_new_game(fe->me);
972 midend_size(fe->me, &x, &y);
973 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
978 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
980 frontend *fe = (frontend *)data;
984 sprintf(titlebuf, "About %.200s", thegame.name);
987 "from Simon Tatham's Portable Puzzle Collection\n\n"
988 "%.500s", thegame.name, ver);
990 message_box(fe->window, titlebuf, textbuf, TRUE);
993 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
996 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
997 gtk_container_add(cont, menuitem);
998 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
999 GINT_TO_POINTER(key));
1000 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1001 GTK_SIGNAL_FUNC(menu_key_event), fe);
1002 gtk_widget_show(menuitem);
1006 static void add_menu_separator(GtkContainer *cont)
1008 GtkWidget *menuitem = gtk_menu_item_new();
1009 gtk_container_add(cont, menuitem);
1010 gtk_widget_show(menuitem);
1013 static frontend *new_window(char *game_id, char **error)
1017 GtkWidget *menubar, *menu, *menuitem;
1020 fe = snew(frontend);
1022 fe->timer_active = FALSE;
1025 fe->me = midend_new(fe, &thegame);
1028 *error = midend_game_id(fe->me, game_id);
1030 midend_free(fe->me);
1035 midend_new_game(fe->me);
1037 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1038 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
1040 gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
1042 gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
1044 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
1045 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
1046 gtk_widget_show(GTK_WIDGET(vbox));
1048 menubar = gtk_menu_bar_new();
1049 gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
1050 gtk_widget_show(menubar);
1052 menuitem = gtk_menu_item_new_with_label("Game");
1053 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1054 gtk_widget_show(menuitem);
1056 menu = gtk_menu_new();
1057 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1059 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
1061 menuitem = gtk_menu_item_new_with_label("Restart");
1062 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1063 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1064 GTK_SIGNAL_FUNC(menu_restart_event), fe);
1065 gtk_widget_show(menuitem);
1067 menuitem = gtk_menu_item_new_with_label("Specific...");
1068 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1069 GINT_TO_POINTER(CFG_DESC));
1070 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1071 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1072 GTK_SIGNAL_FUNC(menu_config_event), fe);
1073 gtk_widget_show(menuitem);
1075 menuitem = gtk_menu_item_new_with_label("Random Seed...");
1076 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1077 GINT_TO_POINTER(CFG_SEED));
1078 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1079 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1080 GTK_SIGNAL_FUNC(menu_config_event), fe);
1081 gtk_widget_show(menuitem);
1083 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
1087 menuitem = gtk_menu_item_new_with_label("Type");
1088 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1089 gtk_widget_show(menuitem);
1091 submenu = gtk_menu_new();
1092 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
1094 for (i = 0; i < n; i++) {
1096 game_params *params;
1098 midend_fetch_preset(fe->me, i, &name, ¶ms);
1100 menuitem = gtk_menu_item_new_with_label(name);
1101 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1102 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
1103 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1104 GTK_SIGNAL_FUNC(menu_preset_event), fe);
1105 gtk_widget_show(menuitem);
1108 if (thegame.can_configure) {
1109 menuitem = gtk_menu_item_new_with_label("Custom...");
1110 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1111 GPOINTER_TO_INT(CFG_SETTINGS));
1112 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1113 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1114 GTK_SIGNAL_FUNC(menu_config_event), fe);
1115 gtk_widget_show(menuitem);
1119 add_menu_separator(GTK_CONTAINER(menu));
1120 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
1121 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
1122 if (thegame.can_format_as_text) {
1123 add_menu_separator(GTK_CONTAINER(menu));
1124 menuitem = gtk_menu_item_new_with_label("Copy");
1125 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1126 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1127 GTK_SIGNAL_FUNC(menu_copy_event), fe);
1128 gtk_widget_show(menuitem);
1130 if (thegame.can_solve) {
1131 add_menu_separator(GTK_CONTAINER(menu));
1132 menuitem = gtk_menu_item_new_with_label("Solve");
1133 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1134 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1135 GTK_SIGNAL_FUNC(menu_solve_event), fe);
1136 gtk_widget_show(menuitem);
1138 add_menu_separator(GTK_CONTAINER(menu));
1139 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
1141 menuitem = gtk_menu_item_new_with_label("Help");
1142 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1143 gtk_widget_show(menuitem);
1145 menu = gtk_menu_new();
1146 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1148 menuitem = gtk_menu_item_new_with_label("About");
1149 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1150 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1151 GTK_SIGNAL_FUNC(menu_about_event), fe);
1152 gtk_widget_show(menuitem);
1159 fe->colmap = gdk_colormap_get_system();
1160 colours = midend_colours(fe->me, &ncolours);
1161 fe->ncolours = ncolours;
1162 fe->colours = snewn(ncolours, GdkColor);
1163 for (i = 0; i < ncolours; i++) {
1164 fe->colours[i].red = colours[i*3] * 0xFFFF;
1165 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
1166 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
1168 success = snewn(ncolours, gboolean);
1169 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
1170 FALSE, FALSE, success);
1171 for (i = 0; i < ncolours; i++) {
1173 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
1174 i, fe->colours[i].red >> 8,
1175 fe->colours[i].green >> 8,
1176 fe->colours[i].blue >> 8);
1180 if (midend_wants_statusbar(fe->me)) {
1181 GtkWidget *viewport;
1184 viewport = gtk_viewport_new(NULL, NULL);
1185 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
1186 fe->statusbar = gtk_statusbar_new();
1187 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
1188 gtk_widget_show(viewport);
1189 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
1190 gtk_widget_show(fe->statusbar);
1191 fe->statusctx = gtk_statusbar_get_context_id
1192 (GTK_STATUSBAR(fe->statusbar), "game");
1193 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
1195 gtk_widget_size_request(fe->statusbar, &req);
1197 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
1199 gtk_widget_set_usize(viewport, -1, req.height);
1201 fe->statusbar = NULL;
1203 fe->area = gtk_drawing_area_new();
1204 midend_size(fe->me, &x, &y);
1205 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1209 gtk_box_pack_end(vbox, fe->area, FALSE, FALSE, 0);
1213 fe->nfonts = fe->fontsize = 0;
1215 fe->laststatus = NULL;
1217 fe->paste_data = NULL;
1218 fe->paste_data_len = 0;
1220 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
1221 GTK_SIGNAL_FUNC(destroy), fe);
1222 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
1223 GTK_SIGNAL_FUNC(key_event), fe);
1224 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
1225 GTK_SIGNAL_FUNC(button_event), fe);
1226 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
1227 GTK_SIGNAL_FUNC(button_event), fe);
1228 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
1229 GTK_SIGNAL_FUNC(motion_event), fe);
1230 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
1231 GTK_SIGNAL_FUNC(selection_get), fe);
1232 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
1233 GTK_SIGNAL_FUNC(selection_clear), fe);
1234 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
1235 GTK_SIGNAL_FUNC(expose_area), fe);
1236 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
1237 GTK_SIGNAL_FUNC(map_window), fe);
1238 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
1239 GTK_SIGNAL_FUNC(configure_area), fe);
1241 gtk_widget_add_events(GTK_WIDGET(fe->area),
1242 GDK_BUTTON_PRESS_MASK |
1243 GDK_BUTTON_RELEASE_MASK |
1244 GDK_BUTTON_MOTION_MASK);
1246 gtk_widget_show(fe->area);
1247 gtk_widget_show(fe->window);
1252 int main(int argc, char **argv)
1254 char *pname = argv[0];
1257 if (argc > 1 && !strcmp(argv[1], "--version")) {
1258 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
1264 * Special standalone mode for generating puzzle IDs on the
1265 * command line. Useful for generating puzzles to be printed
1266 * out and solved offline (for puzzles where that even makes
1267 * sense - Solo, for example, is a lot more pencil-and-paper
1268 * friendly than Net!)
1272 * <puzzle-name> --generate [<n> [<params>]]
1274 * <n>, if present, is the number of puzzle IDs to generate.
1275 * <params>, if present, is the same type of parameter string
1276 * you would pass to the puzzle when running it in GUI mode,
1277 * including optional extras such as the expansion factor in
1278 * Rectangles and the difficulty level in Solo.
1280 * If you specify <params>, you must also specify <n> (although
1281 * you may specify it to be 1). Sorry; that was the
1282 * simplest-to-parse command-line syntax I came up with.
1284 if (argc > 1 && !strcmp(argv[1], "--generate")) {
1286 char *params = NULL, *seed = NULL;
1296 par = thegame.default_params();
1298 if ( (seed = strchr(params, '#')) != NULL )
1300 thegame.decode_params(par, params);
1302 if ((error = thegame.validate_params(par)) != NULL) {
1303 fprintf(stderr, "%s: %s\n", pname, error);
1306 parstr = thegame.encode_params(par, FALSE);
1313 seedlen = strlen(seed);
1315 get_random_seed(&seeddata, &seedlen);
1317 rs = random_init(seeddata, seedlen);
1321 game_aux_info *aux = NULL;
1322 char *desc = thegame.new_desc(par, rs, &aux, FALSE);
1323 printf("%s:%s\n", parstr, desc);
1326 thegame.free_aux_info(aux);
1332 gtk_init(&argc, &argv);
1334 if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
1335 fprintf(stderr, "%s: %s\n", pname, error);