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;
83 void get_random_seed(void **randseed, int *randseedsize)
85 struct timeval *tvp = snew(struct timeval);
86 gettimeofday(tvp, NULL);
87 *randseed = (void *)tvp;
88 *randseedsize = sizeof(struct timeval);
91 void frontend_default_colour(frontend *fe, float *output)
93 GdkColor col = fe->window->style->bg[GTK_STATE_NORMAL];
94 output[0] = col.red / 65535.0;
95 output[1] = col.green / 65535.0;
96 output[2] = col.blue / 65535.0;
99 void status_bar(frontend *fe, char *text)
101 assert(fe->statusbar);
103 gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
104 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, text);
107 void start_draw(frontend *fe)
109 fe->gc = gdk_gc_new(fe->area->window);
116 void clip(frontend *fe, int x, int y, int w, int h)
125 gdk_gc_set_clip_rectangle(fe->gc, &rect);
128 void unclip(frontend *fe)
137 gdk_gc_set_clip_rectangle(fe->gc, &rect);
140 void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
141 int align, int colour, char *text)
146 * Find or create the font.
148 for (i = 0; i < fe->nfonts; i++)
149 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
152 if (i == fe->nfonts) {
153 if (fe->fontsize <= fe->nfonts) {
154 fe->fontsize = fe->nfonts + 10;
155 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
160 fe->fonts[i].type = fonttype;
161 fe->fonts[i].size = fontsize;
163 #if GTK_CHECK_VERSION(2,0,0)
165 * Use Pango to find the closest match to the requested
169 PangoFontDescription *fd;
171 fd = pango_font_description_new();
172 /* `Monospace' and `Sans' are meta-families guaranteed to exist */
173 pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
174 "Monospace" : "Sans");
175 pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
177 * I found some online Pango documentation which
178 * described a function called
179 * pango_font_description_set_absolute_size(), which is
180 * _exactly_ what I want here. Unfortunately, none of
181 * my local Pango installations have it (presumably
182 * they're too old), so I'm going to have to hack round
183 * it by figuring out the point size myself. This
184 * limits me to X and probably also breaks in later
185 * Pango installations, so ideally I should add another
186 * CHECK_VERSION type ifdef and use set_absolute_size
187 * where available. All very annoying.
189 #ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
190 pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
193 Display *d = GDK_DISPLAY();
194 int s = DefaultScreen(d);
196 (PANGO_SCALE * 72.27 / 25.4) *
197 ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
198 pango_font_description_set_size(fd, resolution * fontsize);
201 fe->fonts[i].font = gdk_font_from_description(fd);
202 pango_font_description_free(fd);
205 if (!fe->fonts[i].font)
208 * In GTK 1.2, I don't know of any plausible way to
209 * pick a suitable font, so I'm just going to be
212 * This is also fallback code called if the Pango
213 * approach fails to find an appropriate font.
215 fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
216 "fixed" : "variable");
220 * Find string dimensions and process alignment.
223 int lb, rb, wid, asc, desc;
226 * Measure vertical string extents with respect to the same
229 gdk_string_extents(fe->fonts[i].font,
230 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
231 &lb, &rb, &wid, &asc, &desc);
232 if (align & ALIGN_VCENTRE)
233 y += asc - (asc+desc)/2;
236 * ... but horizontal extents with respect to the provided
237 * string. This means that multiple pieces of text centred
238 * on the same y-coordinate don't have different baselines.
240 gdk_string_extents(fe->fonts[i].font, text,
241 &lb, &rb, &wid, &asc, &desc);
243 if (align & ALIGN_HCENTRE)
245 else if (align & ALIGN_HRIGHT)
251 * Set colour and actually draw text.
253 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
254 gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
257 void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
259 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
260 gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
263 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
265 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
266 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
269 void draw_polygon(frontend *fe, int *coords, int npoints,
270 int fill, int colour)
272 GdkPoint *points = snewn(npoints, GdkPoint);
275 for (i = 0; i < npoints; i++) {
276 points[i].x = coords[i*2];
277 points[i].y = coords[i*2+1];
280 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
281 gdk_draw_polygon(fe->pixmap, fe->gc, fill, points, npoints);
286 void draw_update(frontend *fe, int x, int y, int w, int h)
288 if (fe->bbox_l > x ) fe->bbox_l = x ;
289 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
290 if (fe->bbox_u > y ) fe->bbox_u = y ;
291 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
294 void end_draw(frontend *fe)
296 gdk_gc_unref(fe->gc);
299 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
300 gdk_draw_pixmap(fe->area->window,
301 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
303 fe->bbox_l, fe->bbox_u,
304 fe->bbox_l, fe->bbox_u,
305 fe->bbox_r - fe->bbox_l, fe->bbox_d - fe->bbox_u);
309 static void destroy(GtkWidget *widget, gpointer data)
311 frontend *fe = (frontend *)data;
312 deactivate_timer(fe);
316 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
318 frontend *fe = (frontend *)data;
320 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
321 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
326 if (event->keyval == GDK_Up)
327 keyval = shift | ctrl | CURSOR_UP;
328 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
329 keyval = MOD_NUM_KEYPAD | '8';
330 else if (event->keyval == GDK_Down)
331 keyval = shift | ctrl | CURSOR_DOWN;
332 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
333 keyval = MOD_NUM_KEYPAD | '2';
334 else if (event->keyval == GDK_Left)
335 keyval = shift | ctrl | CURSOR_LEFT;
336 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
337 keyval = MOD_NUM_KEYPAD | '4';
338 else if (event->keyval == GDK_Right)
339 keyval = shift | ctrl | CURSOR_RIGHT;
340 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
341 keyval = MOD_NUM_KEYPAD | '6';
342 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
343 keyval = MOD_NUM_KEYPAD | '7';
344 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
345 keyval = MOD_NUM_KEYPAD | '1';
346 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
347 keyval = MOD_NUM_KEYPAD | '9';
348 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
349 keyval = MOD_NUM_KEYPAD | '3';
350 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
351 keyval = MOD_NUM_KEYPAD | '0';
352 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
353 keyval = MOD_NUM_KEYPAD | '5';
354 else if (event->string[0] && !event->string[1])
355 keyval = (unsigned char)event->string[0];
360 !midend_process_key(fe->me, 0, 0, keyval))
361 gtk_widget_destroy(fe->window);
366 static gint button_event(GtkWidget *widget, GdkEventButton *event,
369 frontend *fe = (frontend *)data;
375 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
378 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
379 button = MIDDLE_BUTTON;
380 else if (event->button == 1)
381 button = LEFT_BUTTON;
382 else if (event->button == 3)
383 button = RIGHT_BUTTON;
385 return FALSE; /* don't even know what button! */
387 if (event->type == GDK_BUTTON_RELEASE)
388 button += LEFT_RELEASE - LEFT_BUTTON;
390 if (!midend_process_key(fe->me, event->x, event->y, button))
391 gtk_widget_destroy(fe->window);
396 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
399 frontend *fe = (frontend *)data;
405 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
406 button = MIDDLE_DRAG;
407 else if (event->state & GDK_BUTTON1_MASK)
409 else if (event->state & GDK_BUTTON3_MASK)
412 return FALSE; /* don't even know what button! */
414 if (!midend_process_key(fe->me, event->x, event->y, button))
415 gtk_widget_destroy(fe->window);
420 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
423 frontend *fe = (frontend *)data;
426 gdk_draw_pixmap(widget->window,
427 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
429 event->area.x, event->area.y,
430 event->area.x, event->area.y,
431 event->area.width, event->area.height);
436 static gint map_window(GtkWidget *widget, GdkEvent *event,
439 frontend *fe = (frontend *)data;
442 * Apparently we need to do this because otherwise the status
443 * bar will fail to update immediately. Annoying, but there we
446 gtk_widget_queue_draw(fe->window);
451 static gint configure_area(GtkWidget *widget,
452 GdkEventConfigure *event, gpointer data)
454 frontend *fe = (frontend *)data;
458 gdk_pixmap_unref(fe->pixmap);
460 fe->pixmap = gdk_pixmap_new(widget->window, fe->w, fe->h, -1);
462 gc = gdk_gc_new(fe->area->window);
463 gdk_gc_set_foreground(gc, &fe->colours[0]);
464 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->w, fe->h);
467 midend_redraw(fe->me);
472 static gint timer_func(gpointer data)
474 frontend *fe = (frontend *)data;
476 if (fe->timer_active) {
479 gettimeofday(&now, NULL);
480 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
481 (now.tv_sec - fe->last_time.tv_sec));
482 midend_timer(fe->me, elapsed); /* may clear timer_active */
486 return fe->timer_active;
489 void deactivate_timer(frontend *fe)
491 if (fe->timer_active)
492 gtk_timeout_remove(fe->timer_id);
493 fe->timer_active = FALSE;
496 void activate_timer(frontend *fe)
498 if (!fe->timer_active) {
499 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
500 gettimeofday(&fe->last_time, NULL);
502 fe->timer_active = TRUE;
505 static void window_destroy(GtkWidget *widget, gpointer data)
510 static void errmsg_button_clicked(GtkButton *button, gpointer data)
512 gtk_widget_destroy(GTK_WIDGET(data));
515 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
517 GtkObject *cancelbutton = GTK_OBJECT(data);
520 * `Escape' effectively clicks the cancel button
522 if (event->keyval == GDK_Escape) {
523 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
530 void message_box(GtkWidget *parent, char *title, char *msg, int centre)
532 GtkWidget *window, *hbox, *text, *ok;
534 window = gtk_dialog_new();
535 text = gtk_label_new(msg);
536 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
537 hbox = gtk_hbox_new(FALSE, 0);
538 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
539 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
540 hbox, FALSE, FALSE, 20);
541 gtk_widget_show(text);
542 gtk_widget_show(hbox);
543 gtk_window_set_title(GTK_WINDOW(window), title);
544 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
545 ok = gtk_button_new_with_label("OK");
546 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
547 ok, FALSE, FALSE, 0);
549 GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
550 gtk_window_set_default(GTK_WINDOW(window), ok);
551 gtk_signal_connect(GTK_OBJECT(ok), "clicked",
552 GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
553 gtk_signal_connect(GTK_OBJECT(window), "destroy",
554 GTK_SIGNAL_FUNC(window_destroy), NULL);
555 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
556 GTK_SIGNAL_FUNC(win_key_press), ok);
557 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
558 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
559 //set_transient_window_pos(parent, window);
560 gtk_widget_show(window);
564 void error_box(GtkWidget *parent, char *msg)
566 message_box(parent, "Error", msg, FALSE);
569 static void config_ok_button_clicked(GtkButton *button, gpointer data)
571 frontend *fe = (frontend *)data;
574 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
577 error_box(fe->cfgbox, err);
580 gtk_widget_destroy(fe->cfgbox);
584 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
586 frontend *fe = (frontend *)data;
588 gtk_widget_destroy(fe->cfgbox);
591 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
594 * GtkEntry has a nasty habit of eating the Return key, which
595 * is unhelpful since it doesn't actually _do_ anything with it
596 * (it calls gtk_widget_activate, but our edit boxes never need
597 * activating). So I catch Return before GtkEntry sees it, and
598 * pass it straight on to the parent widget. Effect: hitting
599 * Return in an edit box will now activate the default button
600 * in the dialog just like it will everywhere else.
602 if (event->keyval == GDK_Return && widget->parent != NULL) {
604 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
605 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
612 static void editbox_changed(GtkEditable *ed, gpointer data)
614 config_item *i = (config_item *)data;
617 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
620 static void button_toggled(GtkToggleButton *tb, gpointer data)
622 config_item *i = (config_item *)data;
624 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
627 static void droplist_sel(GtkMenuItem *item, gpointer data)
629 config_item *i = (config_item *)data;
631 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
635 static int get_config(frontend *fe, int which)
637 GtkWidget *w, *table, *cancel;
642 fe->cfg = midend_get_config(fe->me, which, &title);
643 fe->cfg_which = which;
646 fe->cfgbox = gtk_dialog_new();
647 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
650 w = gtk_button_new_with_label("OK");
651 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
654 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
655 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
656 gtk_signal_connect(GTK_OBJECT(w), "clicked",
657 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
659 w = gtk_button_new_with_label("Cancel");
660 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
663 gtk_signal_connect(GTK_OBJECT(w), "clicked",
664 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
667 table = gtk_table_new(1, 2, FALSE);
669 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
670 table, FALSE, FALSE, 0);
671 gtk_widget_show(table);
673 for (i = fe->cfg; i->type != C_END; i++) {
674 gtk_table_resize(GTK_TABLE(table), y+1, 2);
679 * Edit box with a label beside it.
682 w = gtk_label_new(i->name);
683 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
684 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
685 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
686 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
691 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
692 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
693 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
695 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
696 gtk_signal_connect(GTK_OBJECT(w), "changed",
697 GTK_SIGNAL_FUNC(editbox_changed), i);
698 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
699 GTK_SIGNAL_FUNC(editbox_key), NULL);
708 w = gtk_check_button_new_with_label(i->name);
709 gtk_signal_connect(GTK_OBJECT(w), "toggled",
710 GTK_SIGNAL_FUNC(button_toggled), i);
711 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
712 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
713 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
715 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
721 * Drop-down list (GtkOptionMenu).
724 w = gtk_label_new(i->name);
725 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
726 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
727 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
728 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
732 w = gtk_option_menu_new();
733 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
734 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
735 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
743 GtkWidget *menu = gtk_menu_new();
745 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
753 while (*q && *q != c)
756 name = snewn(q-p+1, char);
757 strncpy(name, p, q-p);
760 if (*q) q++; /* eat delimiter */
762 menuitem = gtk_menu_item_new_with_label(name);
763 gtk_container_add(GTK_CONTAINER(menu), menuitem);
764 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
765 GINT_TO_POINTER(val));
766 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
767 GTK_SIGNAL_FUNC(droplist_sel), i);
768 gtk_widget_show(menuitem);
775 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
784 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
785 GTK_SIGNAL_FUNC(window_destroy), NULL);
786 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
787 GTK_SIGNAL_FUNC(win_key_press), cancel);
788 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
789 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
790 GTK_WINDOW(fe->window));
791 //set_transient_window_pos(fe->window, fe->cfgbox);
792 gtk_widget_show(fe->cfgbox);
800 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
802 frontend *fe = (frontend *)data;
803 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
805 if (!midend_process_key(fe->me, 0, 0, key))
806 gtk_widget_destroy(fe->window);
809 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
811 frontend *fe = (frontend *)data;
812 game_params *params =
813 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
816 midend_set_params(fe->me, params);
817 midend_new_game(fe->me);
818 midend_size(fe->me, &x, &y);
819 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
824 GdkAtom compound_text_atom, utf8_string_atom;
825 int paste_initialised = FALSE;
829 if (paste_initialised)
832 if (!compound_text_atom)
833 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
834 if (!utf8_string_atom)
835 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
838 * Ensure that all the cut buffers exist - according to the
839 * ICCCM, we must do this before we start using cut buffers.
841 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
842 XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, "", 0);
843 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
844 XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, "", 0);
845 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
846 XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, "", 0);
847 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
848 XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, "", 0);
849 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
850 XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, "", 0);
851 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
852 XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, "", 0);
853 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
854 XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, "", 0);
855 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
856 XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, "", 0);
859 /* Store data in a cut-buffer. */
860 void store_cutbuffer(char *ptr, int len)
862 /* ICCCM says we must rotate the buffers before storing to buffer 0. */
863 XRotateBuffers(GDK_DISPLAY(), 1);
864 XStoreBytes(GDK_DISPLAY(), ptr, len);
867 void write_clip(frontend *fe, char *data)
872 sfree(fe->paste_data);
875 * For this simple application we can safely assume that the
876 * data passed to this function is pure ASCII, which means we
877 * can return precisely the same stuff for types STRING,
878 * COMPOUND_TEXT or UTF8_STRING.
881 fe->paste_data = data;
882 fe->paste_data_len = strlen(data);
884 store_cutbuffer(fe->paste_data, fe->paste_data_len);
886 if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
888 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
889 GDK_SELECTION_TYPE_STRING, 1);
890 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
891 compound_text_atom, 1);
892 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
893 utf8_string_atom, 1);
897 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
898 guint info, guint time_stamp, gpointer data)
900 frontend *fe = (frontend *)data;
901 gtk_selection_data_set(seldata, seldata->target, 8,
902 fe->paste_data, fe->paste_data_len);
905 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
908 frontend *fe = (frontend *)data;
911 sfree(fe->paste_data);
912 fe->paste_data = NULL;
913 fe->paste_data_len = 0;
917 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
919 frontend *fe = (frontend *)data;
922 text = midend_text_format(fe->me);
925 write_clip(fe, text);
931 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
933 frontend *fe = (frontend *)data;
936 msg = midend_solve(fe->me);
939 error_box(fe->window, msg);
942 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
944 frontend *fe = (frontend *)data;
946 midend_restart_game(fe->me);
949 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
951 frontend *fe = (frontend *)data;
952 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
956 if (!get_config(fe, which))
959 midend_new_game(fe->me);
960 midend_size(fe->me, &x, &y);
961 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
966 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
968 frontend *fe = (frontend *)data;
972 sprintf(titlebuf, "About %.200s", thegame.name);
975 "from Simon Tatham's Portable Puzzle Collection\n\n"
976 "%.500s", thegame.name, ver);
978 message_box(fe->window, titlebuf, textbuf, TRUE);
981 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
984 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
985 gtk_container_add(cont, menuitem);
986 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
987 GINT_TO_POINTER(key));
988 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
989 GTK_SIGNAL_FUNC(menu_key_event), fe);
990 gtk_widget_show(menuitem);
994 static void add_menu_separator(GtkContainer *cont)
996 GtkWidget *menuitem = gtk_menu_item_new();
997 gtk_container_add(cont, menuitem);
998 gtk_widget_show(menuitem);
1001 static frontend *new_window(char *game_id, char **error)
1005 GtkWidget *menubar, *menu, *menuitem;
1008 fe = snew(frontend);
1010 fe->me = midend_new(fe, &thegame);
1012 *error = midend_game_id(fe->me, game_id);
1014 midend_free(fe->me);
1019 midend_new_game(fe->me);
1021 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1022 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
1024 gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
1026 gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
1028 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
1029 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
1030 gtk_widget_show(GTK_WIDGET(vbox));
1032 menubar = gtk_menu_bar_new();
1033 gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
1034 gtk_widget_show(menubar);
1036 menuitem = gtk_menu_item_new_with_label("Game");
1037 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1038 gtk_widget_show(menuitem);
1040 menu = gtk_menu_new();
1041 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1043 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
1045 menuitem = gtk_menu_item_new_with_label("Restart");
1046 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1047 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1048 GTK_SIGNAL_FUNC(menu_restart_event), fe);
1049 gtk_widget_show(menuitem);
1051 menuitem = gtk_menu_item_new_with_label("Specific...");
1052 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1053 GINT_TO_POINTER(CFG_DESC));
1054 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1055 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1056 GTK_SIGNAL_FUNC(menu_config_event), fe);
1057 gtk_widget_show(menuitem);
1059 menuitem = gtk_menu_item_new_with_label("Random Seed...");
1060 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1061 GINT_TO_POINTER(CFG_SEED));
1062 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1063 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1064 GTK_SIGNAL_FUNC(menu_config_event), fe);
1065 gtk_widget_show(menuitem);
1067 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
1071 menuitem = gtk_menu_item_new_with_label("Type");
1072 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1073 gtk_widget_show(menuitem);
1075 submenu = gtk_menu_new();
1076 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
1078 for (i = 0; i < n; i++) {
1080 game_params *params;
1082 midend_fetch_preset(fe->me, i, &name, ¶ms);
1084 menuitem = gtk_menu_item_new_with_label(name);
1085 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1086 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
1087 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1088 GTK_SIGNAL_FUNC(menu_preset_event), fe);
1089 gtk_widget_show(menuitem);
1092 if (thegame.can_configure) {
1093 menuitem = gtk_menu_item_new_with_label("Custom...");
1094 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1095 GPOINTER_TO_INT(CFG_SETTINGS));
1096 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1097 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1098 GTK_SIGNAL_FUNC(menu_config_event), fe);
1099 gtk_widget_show(menuitem);
1103 add_menu_separator(GTK_CONTAINER(menu));
1104 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
1105 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
1106 if (thegame.can_format_as_text) {
1107 add_menu_separator(GTK_CONTAINER(menu));
1108 menuitem = gtk_menu_item_new_with_label("Copy");
1109 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1110 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1111 GTK_SIGNAL_FUNC(menu_copy_event), fe);
1112 gtk_widget_show(menuitem);
1114 if (thegame.can_solve) {
1115 add_menu_separator(GTK_CONTAINER(menu));
1116 menuitem = gtk_menu_item_new_with_label("Solve");
1117 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1118 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1119 GTK_SIGNAL_FUNC(menu_solve_event), fe);
1120 gtk_widget_show(menuitem);
1122 add_menu_separator(GTK_CONTAINER(menu));
1123 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
1125 menuitem = gtk_menu_item_new_with_label("Help");
1126 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1127 gtk_widget_show(menuitem);
1129 menu = gtk_menu_new();
1130 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1132 menuitem = gtk_menu_item_new_with_label("About");
1133 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1134 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1135 GTK_SIGNAL_FUNC(menu_about_event), fe);
1136 gtk_widget_show(menuitem);
1143 fe->colmap = gdk_colormap_get_system();
1144 colours = midend_colours(fe->me, &ncolours);
1145 fe->ncolours = ncolours;
1146 fe->colours = snewn(ncolours, GdkColor);
1147 for (i = 0; i < ncolours; i++) {
1148 fe->colours[i].red = colours[i*3] * 0xFFFF;
1149 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
1150 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
1152 success = snewn(ncolours, gboolean);
1153 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
1154 FALSE, FALSE, success);
1155 for (i = 0; i < ncolours; i++) {
1157 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
1158 i, fe->colours[i].red >> 8,
1159 fe->colours[i].green >> 8,
1160 fe->colours[i].blue >> 8);
1164 if (midend_wants_statusbar(fe->me)) {
1165 GtkWidget *viewport;
1168 viewport = gtk_viewport_new(NULL, NULL);
1169 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
1170 fe->statusbar = gtk_statusbar_new();
1171 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
1172 gtk_widget_show(viewport);
1173 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
1174 gtk_widget_show(fe->statusbar);
1175 fe->statusctx = gtk_statusbar_get_context_id
1176 (GTK_STATUSBAR(fe->statusbar), "game");
1177 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
1179 gtk_widget_size_request(fe->statusbar, &req);
1181 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
1183 gtk_widget_set_usize(viewport, -1, req.height);
1185 fe->statusbar = NULL;
1187 fe->area = gtk_drawing_area_new();
1188 midend_size(fe->me, &x, &y);
1189 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1193 gtk_box_pack_end(vbox, fe->area, FALSE, FALSE, 0);
1197 fe->nfonts = fe->fontsize = 0;
1199 fe->timer_active = FALSE;
1201 fe->paste_data = NULL;
1202 fe->paste_data_len = 0;
1204 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
1205 GTK_SIGNAL_FUNC(destroy), fe);
1206 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
1207 GTK_SIGNAL_FUNC(key_event), fe);
1208 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
1209 GTK_SIGNAL_FUNC(button_event), fe);
1210 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
1211 GTK_SIGNAL_FUNC(button_event), fe);
1212 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
1213 GTK_SIGNAL_FUNC(motion_event), fe);
1214 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
1215 GTK_SIGNAL_FUNC(selection_get), fe);
1216 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
1217 GTK_SIGNAL_FUNC(selection_clear), fe);
1218 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
1219 GTK_SIGNAL_FUNC(expose_area), fe);
1220 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
1221 GTK_SIGNAL_FUNC(map_window), fe);
1222 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
1223 GTK_SIGNAL_FUNC(configure_area), fe);
1225 gtk_widget_add_events(GTK_WIDGET(fe->area),
1226 GDK_BUTTON_PRESS_MASK |
1227 GDK_BUTTON_RELEASE_MASK |
1228 GDK_BUTTON_MOTION_MASK);
1230 gtk_widget_show(fe->area);
1231 gtk_widget_show(fe->window);
1236 int main(int argc, char **argv)
1238 char *pname = argv[0];
1241 if (argc > 1 && !strcmp(argv[1], "--version")) {
1242 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
1248 * Special standalone mode for generating puzzle IDs on the
1249 * command line. Useful for generating puzzles to be printed
1250 * out and solved offline (for puzzles where that even makes
1251 * sense - Solo, for example, is a lot more pencil-and-paper
1252 * friendly than Net!)
1256 * <puzzle-name> --generate [<n> [<params>]]
1258 * <n>, if present, is the number of puzzle IDs to generate.
1259 * <params>, if present, is the same type of parameter string
1260 * you would pass to the puzzle when running it in GUI mode,
1261 * including optional extras such as the expansion factor in
1262 * Rectangles and the difficulty level in Solo.
1264 * If you specify <params>, you must also specify <n> (although
1265 * you may specify it to be 1). Sorry; that was the
1266 * simplest-to-parse command-line syntax I came up with.
1268 if (argc > 1 && !strcmp(argv[1], "--generate")) {
1270 char *params = NULL, *seed = NULL;
1280 par = thegame.default_params();
1282 if ( (seed = strchr(params, '#')) != NULL )
1284 thegame.decode_params(par, params);
1286 if ((error = thegame.validate_params(par)) != NULL) {
1287 fprintf(stderr, "%s: %s\n", pname, error);
1290 parstr = thegame.encode_params(par, FALSE);
1297 seedlen = strlen(seed);
1299 get_random_seed(&seeddata, &seedlen);
1301 rs = random_init(seeddata, seedlen);
1305 game_aux_info *aux = NULL;
1306 char *desc = thegame.new_desc(par, rs, &aux);
1307 printf("%s:%s\n", parstr, desc);
1310 thegame.free_aux_info(aux);
1316 gtk_init(&argc, &argv);
1318 if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
1319 fprintf(stderr, "%s: %s\n", pname, error);