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 time_t *tp = snew(time_t);
87 *randseed = (void *)tp;
88 *randseedsize = sizeof(time_t);
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;
324 if (event->keyval == GDK_Up)
326 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
327 keyval = MOD_NUM_KEYPAD | '8';
328 else if (event->keyval == GDK_Down)
329 keyval = CURSOR_DOWN;
330 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
331 keyval = MOD_NUM_KEYPAD | '2';
332 else if (event->keyval == GDK_Left)
333 keyval = CURSOR_LEFT;
334 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
335 keyval = MOD_NUM_KEYPAD | '4';
336 else if (event->keyval == GDK_Right)
337 keyval = CURSOR_RIGHT;
338 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
339 keyval = MOD_NUM_KEYPAD | '6';
340 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
341 keyval = MOD_NUM_KEYPAD | '7';
342 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
343 keyval = MOD_NUM_KEYPAD | '1';
344 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
345 keyval = MOD_NUM_KEYPAD | '9';
346 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
347 keyval = MOD_NUM_KEYPAD | '3';
348 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
349 keyval = MOD_NUM_KEYPAD | '0';
350 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
351 keyval = MOD_NUM_KEYPAD | '5';
352 else if (event->string[0] && !event->string[1])
353 keyval = (unsigned char)event->string[0];
358 !midend_process_key(fe->me, 0, 0, keyval))
359 gtk_widget_destroy(fe->window);
364 static gint button_event(GtkWidget *widget, GdkEventButton *event,
367 frontend *fe = (frontend *)data;
373 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
376 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
377 button = MIDDLE_BUTTON;
378 else if (event->button == 1)
379 button = LEFT_BUTTON;
380 else if (event->button == 3)
381 button = RIGHT_BUTTON;
383 return FALSE; /* don't even know what button! */
385 if (event->type == GDK_BUTTON_RELEASE)
386 button += LEFT_RELEASE - LEFT_BUTTON;
388 if (!midend_process_key(fe->me, event->x, event->y, button))
389 gtk_widget_destroy(fe->window);
394 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
397 frontend *fe = (frontend *)data;
403 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
404 button = MIDDLE_DRAG;
405 else if (event->state & GDK_BUTTON1_MASK)
407 else if (event->state & GDK_BUTTON3_MASK)
410 return FALSE; /* don't even know what button! */
412 if (!midend_process_key(fe->me, event->x, event->y, button))
413 gtk_widget_destroy(fe->window);
418 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
421 frontend *fe = (frontend *)data;
424 gdk_draw_pixmap(widget->window,
425 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
427 event->area.x, event->area.y,
428 event->area.x, event->area.y,
429 event->area.width, event->area.height);
434 static gint map_window(GtkWidget *widget, GdkEvent *event,
437 frontend *fe = (frontend *)data;
440 * Apparently we need to do this because otherwise the status
441 * bar will fail to update immediately. Annoying, but there we
444 gtk_widget_queue_draw(fe->window);
449 static gint configure_area(GtkWidget *widget,
450 GdkEventConfigure *event, gpointer data)
452 frontend *fe = (frontend *)data;
456 gdk_pixmap_unref(fe->pixmap);
458 fe->pixmap = gdk_pixmap_new(widget->window, fe->w, fe->h, -1);
460 gc = gdk_gc_new(fe->area->window);
461 gdk_gc_set_foreground(gc, &fe->colours[0]);
462 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->w, fe->h);
465 midend_redraw(fe->me);
470 static gint timer_func(gpointer data)
472 frontend *fe = (frontend *)data;
474 if (fe->timer_active) {
477 gettimeofday(&now, NULL);
478 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
479 (now.tv_sec - fe->last_time.tv_sec));
480 midend_timer(fe->me, elapsed); /* may clear timer_active */
484 return fe->timer_active;
487 void deactivate_timer(frontend *fe)
489 if (fe->timer_active)
490 gtk_timeout_remove(fe->timer_id);
491 fe->timer_active = FALSE;
494 void activate_timer(frontend *fe)
496 if (!fe->timer_active) {
497 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
498 gettimeofday(&fe->last_time, NULL);
500 fe->timer_active = TRUE;
503 static void window_destroy(GtkWidget *widget, gpointer data)
508 static void errmsg_button_clicked(GtkButton *button, gpointer data)
510 gtk_widget_destroy(GTK_WIDGET(data));
513 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
515 GtkObject *cancelbutton = GTK_OBJECT(data);
518 * `Escape' effectively clicks the cancel button
520 if (event->keyval == GDK_Escape) {
521 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
528 void message_box(GtkWidget *parent, char *title, char *msg, int centre)
530 GtkWidget *window, *hbox, *text, *ok;
532 window = gtk_dialog_new();
533 text = gtk_label_new(msg);
534 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
535 hbox = gtk_hbox_new(FALSE, 0);
536 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
537 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
538 hbox, FALSE, FALSE, 20);
539 gtk_widget_show(text);
540 gtk_widget_show(hbox);
541 gtk_window_set_title(GTK_WINDOW(window), title);
542 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
543 ok = gtk_button_new_with_label("OK");
544 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
545 ok, FALSE, FALSE, 0);
547 GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
548 gtk_window_set_default(GTK_WINDOW(window), ok);
549 gtk_signal_connect(GTK_OBJECT(ok), "clicked",
550 GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
551 gtk_signal_connect(GTK_OBJECT(window), "destroy",
552 GTK_SIGNAL_FUNC(window_destroy), NULL);
553 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
554 GTK_SIGNAL_FUNC(win_key_press), ok);
555 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
556 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
557 //set_transient_window_pos(parent, window);
558 gtk_widget_show(window);
562 void error_box(GtkWidget *parent, char *msg)
564 message_box(parent, "Error", msg, FALSE);
567 static void config_ok_button_clicked(GtkButton *button, gpointer data)
569 frontend *fe = (frontend *)data;
572 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
575 error_box(fe->cfgbox, err);
578 gtk_widget_destroy(fe->cfgbox);
582 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
584 frontend *fe = (frontend *)data;
586 gtk_widget_destroy(fe->cfgbox);
589 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
592 * GtkEntry has a nasty habit of eating the Return key, which
593 * is unhelpful since it doesn't actually _do_ anything with it
594 * (it calls gtk_widget_activate, but our edit boxes never need
595 * activating). So I catch Return before GtkEntry sees it, and
596 * pass it straight on to the parent widget. Effect: hitting
597 * Return in an edit box will now activate the default button
598 * in the dialog just like it will everywhere else.
600 if (event->keyval == GDK_Return && widget->parent != NULL) {
602 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
603 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
610 static void editbox_changed(GtkEditable *ed, gpointer data)
612 config_item *i = (config_item *)data;
615 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
618 static void button_toggled(GtkToggleButton *tb, gpointer data)
620 config_item *i = (config_item *)data;
622 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
625 static void droplist_sel(GtkMenuItem *item, gpointer data)
627 config_item *i = (config_item *)data;
629 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
633 static int get_config(frontend *fe, int which)
635 GtkWidget *w, *table, *cancel;
640 fe->cfg = midend_get_config(fe->me, which, &title);
641 fe->cfg_which = which;
644 fe->cfgbox = gtk_dialog_new();
645 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
648 w = gtk_button_new_with_label("OK");
649 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
652 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
653 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
654 gtk_signal_connect(GTK_OBJECT(w), "clicked",
655 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
657 w = gtk_button_new_with_label("Cancel");
658 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
661 gtk_signal_connect(GTK_OBJECT(w), "clicked",
662 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
665 table = gtk_table_new(1, 2, FALSE);
667 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
668 table, FALSE, FALSE, 0);
669 gtk_widget_show(table);
671 for (i = fe->cfg; i->type != C_END; i++) {
672 gtk_table_resize(GTK_TABLE(table), y+1, 2);
677 * Edit box with a label beside it.
680 w = gtk_label_new(i->name);
681 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
682 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
683 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
684 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
689 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
690 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
691 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
693 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
694 gtk_signal_connect(GTK_OBJECT(w), "changed",
695 GTK_SIGNAL_FUNC(editbox_changed), i);
696 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
697 GTK_SIGNAL_FUNC(editbox_key), NULL);
706 w = gtk_check_button_new_with_label(i->name);
707 gtk_signal_connect(GTK_OBJECT(w), "toggled",
708 GTK_SIGNAL_FUNC(button_toggled), i);
709 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
710 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
711 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
713 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
719 * Drop-down list (GtkOptionMenu).
722 w = gtk_label_new(i->name);
723 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
724 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
725 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
726 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
730 w = gtk_option_menu_new();
731 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
732 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
733 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
741 GtkWidget *menu = gtk_menu_new();
743 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
751 while (*q && *q != c)
754 name = snewn(q-p+1, char);
755 strncpy(name, p, q-p);
758 if (*q) q++; /* eat delimiter */
760 menuitem = gtk_menu_item_new_with_label(name);
761 gtk_container_add(GTK_CONTAINER(menu), menuitem);
762 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
763 GINT_TO_POINTER(val));
764 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
765 GTK_SIGNAL_FUNC(droplist_sel), i);
766 gtk_widget_show(menuitem);
773 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
782 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
783 GTK_SIGNAL_FUNC(window_destroy), NULL);
784 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
785 GTK_SIGNAL_FUNC(win_key_press), cancel);
786 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
787 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
788 GTK_WINDOW(fe->window));
789 //set_transient_window_pos(fe->window, fe->cfgbox);
790 gtk_widget_show(fe->cfgbox);
798 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
800 frontend *fe = (frontend *)data;
801 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
803 if (!midend_process_key(fe->me, 0, 0, key))
804 gtk_widget_destroy(fe->window);
807 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
809 frontend *fe = (frontend *)data;
810 game_params *params =
811 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
814 midend_set_params(fe->me, params);
815 midend_new_game(fe->me);
816 midend_size(fe->me, &x, &y);
817 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
822 GdkAtom compound_text_atom, utf8_string_atom;
823 int paste_initialised = FALSE;
827 if (paste_initialised)
830 if (!compound_text_atom)
831 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
832 if (!utf8_string_atom)
833 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
836 * Ensure that all the cut buffers exist - according to the
837 * ICCCM, we must do this before we start using cut buffers.
839 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
840 XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, "", 0);
841 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
842 XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, "", 0);
843 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
844 XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, "", 0);
845 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
846 XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, "", 0);
847 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
848 XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, "", 0);
849 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
850 XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, "", 0);
851 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
852 XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, "", 0);
853 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
854 XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, "", 0);
857 /* Store data in a cut-buffer. */
858 void store_cutbuffer(char *ptr, int len)
860 /* ICCCM says we must rotate the buffers before storing to buffer 0. */
861 XRotateBuffers(GDK_DISPLAY(), 1);
862 XStoreBytes(GDK_DISPLAY(), ptr, len);
865 void write_clip(frontend *fe, char *data)
870 sfree(fe->paste_data);
873 * For this simple application we can safely assume that the
874 * data passed to this function is pure ASCII, which means we
875 * can return precisely the same stuff for types STRING,
876 * COMPOUND_TEXT or UTF8_STRING.
879 fe->paste_data = data;
880 fe->paste_data_len = strlen(data);
882 store_cutbuffer(fe->paste_data, fe->paste_data_len);
884 if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
886 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
887 GDK_SELECTION_TYPE_STRING, 1);
888 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
889 compound_text_atom, 1);
890 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
891 utf8_string_atom, 1);
895 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
896 guint info, guint time_stamp, gpointer data)
898 frontend *fe = (frontend *)data;
899 gtk_selection_data_set(seldata, seldata->target, 8,
900 fe->paste_data, fe->paste_data_len);
903 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
906 frontend *fe = (frontend *)data;
909 sfree(fe->paste_data);
910 fe->paste_data = NULL;
911 fe->paste_data_len = 0;
915 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
917 frontend *fe = (frontend *)data;
920 text = midend_text_format(fe->me);
923 write_clip(fe, text);
929 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
931 frontend *fe = (frontend *)data;
934 msg = midend_solve(fe->me);
937 error_box(fe->window, msg);
940 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
942 frontend *fe = (frontend *)data;
944 midend_restart_game(fe->me);
947 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
949 frontend *fe = (frontend *)data;
950 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
954 if (!get_config(fe, which))
957 midend_new_game(fe->me);
958 midend_size(fe->me, &x, &y);
959 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
964 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
966 frontend *fe = (frontend *)data;
970 sprintf(titlebuf, "About %.200s", thegame.name);
973 "from Simon Tatham's Portable Puzzle Collection\n\n"
974 "%.500s", thegame.name, ver);
976 message_box(fe->window, titlebuf, textbuf, TRUE);
979 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
982 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
983 gtk_container_add(cont, menuitem);
984 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
985 GINT_TO_POINTER(key));
986 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
987 GTK_SIGNAL_FUNC(menu_key_event), fe);
988 gtk_widget_show(menuitem);
992 static void add_menu_separator(GtkContainer *cont)
994 GtkWidget *menuitem = gtk_menu_item_new();
995 gtk_container_add(cont, menuitem);
996 gtk_widget_show(menuitem);
999 static frontend *new_window(char *game_id, char **error)
1003 GtkWidget *menubar, *menu, *menuitem;
1006 fe = snew(frontend);
1008 fe->me = midend_new(fe, &thegame);
1010 *error = midend_game_id(fe->me, game_id);
1012 midend_free(fe->me);
1017 midend_new_game(fe->me);
1019 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1020 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
1022 gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
1024 gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
1026 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
1027 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
1028 gtk_widget_show(GTK_WIDGET(vbox));
1030 menubar = gtk_menu_bar_new();
1031 gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
1032 gtk_widget_show(menubar);
1034 menuitem = gtk_menu_item_new_with_label("Game");
1035 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1036 gtk_widget_show(menuitem);
1038 menu = gtk_menu_new();
1039 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1041 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
1043 menuitem = gtk_menu_item_new_with_label("Restart");
1044 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1045 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1046 GTK_SIGNAL_FUNC(menu_restart_event), fe);
1047 gtk_widget_show(menuitem);
1049 menuitem = gtk_menu_item_new_with_label("Specific...");
1050 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1051 GINT_TO_POINTER(CFG_DESC));
1052 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1053 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1054 GTK_SIGNAL_FUNC(menu_config_event), fe);
1055 gtk_widget_show(menuitem);
1057 menuitem = gtk_menu_item_new_with_label("Random Seed...");
1058 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1059 GINT_TO_POINTER(CFG_SEED));
1060 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1061 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1062 GTK_SIGNAL_FUNC(menu_config_event), fe);
1063 gtk_widget_show(menuitem);
1065 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
1069 menuitem = gtk_menu_item_new_with_label("Type");
1070 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1071 gtk_widget_show(menuitem);
1073 submenu = gtk_menu_new();
1074 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
1076 for (i = 0; i < n; i++) {
1078 game_params *params;
1080 midend_fetch_preset(fe->me, i, &name, ¶ms);
1082 menuitem = gtk_menu_item_new_with_label(name);
1083 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1084 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
1085 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1086 GTK_SIGNAL_FUNC(menu_preset_event), fe);
1087 gtk_widget_show(menuitem);
1090 if (thegame.can_configure) {
1091 menuitem = gtk_menu_item_new_with_label("Custom...");
1092 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1093 GPOINTER_TO_INT(CFG_SETTINGS));
1094 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1095 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1096 GTK_SIGNAL_FUNC(menu_config_event), fe);
1097 gtk_widget_show(menuitem);
1101 add_menu_separator(GTK_CONTAINER(menu));
1102 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
1103 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
1104 if (thegame.can_format_as_text) {
1105 add_menu_separator(GTK_CONTAINER(menu));
1106 menuitem = gtk_menu_item_new_with_label("Copy");
1107 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1108 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1109 GTK_SIGNAL_FUNC(menu_copy_event), fe);
1110 gtk_widget_show(menuitem);
1112 if (thegame.can_solve) {
1113 add_menu_separator(GTK_CONTAINER(menu));
1114 menuitem = gtk_menu_item_new_with_label("Solve");
1115 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1116 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1117 GTK_SIGNAL_FUNC(menu_solve_event), fe);
1118 gtk_widget_show(menuitem);
1120 add_menu_separator(GTK_CONTAINER(menu));
1121 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
1123 menuitem = gtk_menu_item_new_with_label("Help");
1124 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1125 gtk_widget_show(menuitem);
1127 menu = gtk_menu_new();
1128 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1130 menuitem = gtk_menu_item_new_with_label("About");
1131 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1132 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1133 GTK_SIGNAL_FUNC(menu_about_event), fe);
1134 gtk_widget_show(menuitem);
1141 fe->colmap = gdk_colormap_get_system();
1142 colours = midend_colours(fe->me, &ncolours);
1143 fe->ncolours = ncolours;
1144 fe->colours = snewn(ncolours, GdkColor);
1145 for (i = 0; i < ncolours; i++) {
1147 * Just for Gareth: if you dislike any of the standard
1148 * colours, here's your chance to configure them in a
1152 unsigned int r, g, b;
1153 sprintf(buf, "PUZZLE_COLOUR_%d", i);
1154 if ((e = getenv(buf)) != NULL &&
1155 sscanf(e, "%2x%2x%2x", &r, &g, &b) == 3) {
1156 fe->colours[i].red = r * 0x101;
1157 fe->colours[i].green = g * 0x101;
1158 fe->colours[i].blue = b * 0x101;
1160 fe->colours[i].red = colours[i*3] * 0xFFFF;
1161 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
1162 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
1165 success = snewn(ncolours, gboolean);
1166 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
1167 FALSE, FALSE, success);
1168 for (i = 0; i < ncolours; i++) {
1170 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
1171 i, fe->colours[i].red >> 8,
1172 fe->colours[i].green >> 8,
1173 fe->colours[i].blue >> 8);
1177 if (midend_wants_statusbar(fe->me)) {
1178 GtkWidget *viewport;
1181 viewport = gtk_viewport_new(NULL, NULL);
1182 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
1183 fe->statusbar = gtk_statusbar_new();
1184 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
1185 gtk_widget_show(viewport);
1186 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
1187 gtk_widget_show(fe->statusbar);
1188 fe->statusctx = gtk_statusbar_get_context_id
1189 (GTK_STATUSBAR(fe->statusbar), "game");
1190 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
1192 gtk_widget_size_request(fe->statusbar, &req);
1194 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
1196 gtk_widget_set_usize(viewport, -1, req.height);
1198 fe->statusbar = NULL;
1200 fe->area = gtk_drawing_area_new();
1201 midend_size(fe->me, &x, &y);
1202 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1206 gtk_box_pack_end(vbox, fe->area, FALSE, FALSE, 0);
1210 fe->nfonts = fe->fontsize = 0;
1212 fe->timer_active = FALSE;
1214 fe->paste_data = NULL;
1215 fe->paste_data_len = 0;
1217 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
1218 GTK_SIGNAL_FUNC(destroy), fe);
1219 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
1220 GTK_SIGNAL_FUNC(key_event), fe);
1221 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
1222 GTK_SIGNAL_FUNC(button_event), fe);
1223 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
1224 GTK_SIGNAL_FUNC(button_event), fe);
1225 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
1226 GTK_SIGNAL_FUNC(motion_event), fe);
1227 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
1228 GTK_SIGNAL_FUNC(selection_get), fe);
1229 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
1230 GTK_SIGNAL_FUNC(selection_clear), fe);
1231 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
1232 GTK_SIGNAL_FUNC(expose_area), fe);
1233 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
1234 GTK_SIGNAL_FUNC(map_window), fe);
1235 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
1236 GTK_SIGNAL_FUNC(configure_area), fe);
1238 gtk_widget_add_events(GTK_WIDGET(fe->area),
1239 GDK_BUTTON_PRESS_MASK |
1240 GDK_BUTTON_RELEASE_MASK |
1241 GDK_BUTTON_MOTION_MASK);
1243 gtk_widget_show(fe->area);
1244 gtk_widget_show(fe->window);
1249 int main(int argc, char **argv)
1251 char *pname = argv[0];
1255 * Special standalone mode for generating puzzle IDs on the
1256 * command line. Useful for generating puzzles to be printed
1257 * out and solved offline (for puzzles where that even makes
1258 * sense - Solo, for example, is a lot more pencil-and-paper
1259 * friendly than Net!)
1263 * <puzzle-name> --generate [<n> [<params>]]
1265 * <n>, if present, is the number of puzzle IDs to generate.
1266 * <params>, if present, is the same type of parameter string
1267 * you would pass to the puzzle when running it in GUI mode,
1268 * including optional extras such as the expansion factor in
1269 * Rectangles and the difficulty level in Solo.
1271 * If you specify <params>, you must also specify <n> (although
1272 * you may specify it to be 1). Sorry; that was the
1273 * simplest-to-parse command-line syntax I came up with.
1275 if (argc > 1 && !strcmp(argv[1], "--generate")) {
1277 char *params = NULL, *seed = NULL;
1287 par = thegame.default_params();
1289 if ( (seed = strchr(params, '#')) != NULL )
1291 thegame.decode_params(par, params);
1294 parstr = thegame.encode_params(par, FALSE);
1301 seedlen = strlen(seed);
1303 get_random_seed(&seeddata, &seedlen);
1305 rs = random_init(seeddata, seedlen);
1309 game_aux_info *aux = NULL;
1310 char *desc = thegame.new_desc(par, rs, &aux);
1311 printf("%s:%s\n", parstr, desc);
1314 thegame.free_aux_info(aux);
1320 gtk_init(&argc, &argv);
1322 if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
1323 fprintf(stderr, "%s: %s\n", pname, error);