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 #if GTK_CHECK_VERSION(2,0,0)
28 /* ----------------------------------------------------------------------
29 * Error reporting functions used elsewhere.
32 void fatal(char *fmt, ...)
36 fprintf(stderr, "fatal error: ");
39 vfprintf(stderr, fmt, ap);
42 fprintf(stderr, "\n");
46 /* ----------------------------------------------------------------------
47 * GTK front end to puzzles.
52 PangoFontDescription *desc;
61 * This structure holds all the data relevant to a single window.
62 * In principle this would allow us to open multiple independent
63 * puzzle windows, although I can't currently see any real point in
64 * doing so. I'm just coding cleanly because there's no
65 * particularly good reason not to.
79 int bbox_l, bbox_r, bbox_u, bbox_d;
80 int timer_active, timer_id;
81 struct timeval last_time;
85 int cfg_which, cfgret;
90 int pw, ph; /* pixmap size (w, h are area size) */
91 int ox, oy; /* offset of pixmap in drawing area */
94 void get_random_seed(void **randseed, int *randseedsize)
96 struct timeval *tvp = snew(struct timeval);
97 gettimeofday(tvp, NULL);
98 *randseed = (void *)tvp;
99 *randseedsize = sizeof(struct timeval);
102 void frontend_default_colour(frontend *fe, float *output)
104 GdkColor col = fe->window->style->bg[GTK_STATE_NORMAL];
105 output[0] = col.red / 65535.0;
106 output[1] = col.green / 65535.0;
107 output[2] = col.blue / 65535.0;
110 void status_bar(frontend *fe, char *text)
114 assert(fe->statusbar);
116 rewritten = midend_rewrite_statusbar(fe->me, text);
117 if (!fe->laststatus || strcmp(rewritten, fe->laststatus)) {
118 gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
119 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, rewritten);
120 sfree(fe->laststatus);
121 fe->laststatus = rewritten;
127 void start_draw(frontend *fe)
129 fe->gc = gdk_gc_new(fe->area->window);
136 void clip(frontend *fe, int x, int y, int w, int h)
145 gdk_gc_set_clip_rectangle(fe->gc, &rect);
148 void unclip(frontend *fe)
157 gdk_gc_set_clip_rectangle(fe->gc, &rect);
160 void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
161 int align, int colour, char *text)
166 * Find or create the font.
168 for (i = 0; i < fe->nfonts; i++)
169 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
172 if (i == fe->nfonts) {
173 if (fe->fontsize <= fe->nfonts) {
174 fe->fontsize = fe->nfonts + 10;
175 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
180 fe->fonts[i].type = fonttype;
181 fe->fonts[i].size = fontsize;
185 * Use Pango to find the closest match to the requested
189 PangoFontDescription *fd;
191 fd = pango_font_description_new();
192 /* `Monospace' and `Sans' are meta-families guaranteed to exist */
193 pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
194 "Monospace" : "Sans");
195 pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
197 * I found some online Pango documentation which
198 * described a function called
199 * pango_font_description_set_absolute_size(), which is
200 * _exactly_ what I want here. Unfortunately, none of
201 * my local Pango installations have it (presumably
202 * they're too old), so I'm going to have to hack round
203 * it by figuring out the point size myself. This
204 * limits me to X and probably also breaks in later
205 * Pango installations, so ideally I should add another
206 * CHECK_VERSION type ifdef and use set_absolute_size
207 * where available. All very annoying.
209 #ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
210 pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
213 Display *d = GDK_DISPLAY();
214 int s = DefaultScreen(d);
216 (PANGO_SCALE * 72.27 / 25.4) *
217 ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
218 pango_font_description_set_size(fd, resolution * fontsize);
221 fe->fonts[i].desc = fd;
226 * In GTK 1.2, I don't know of any plausible way to
227 * pick a suitable font, so I'm just going to be
230 fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
231 "fixed" : "variable");
239 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
250 layout = pango_layout_new(gtk_widget_get_pango_context(fe->area));
251 pango_layout_set_font_description(layout, fe->fonts[i].desc);
252 pango_layout_set_text(layout, text, strlen(text));
253 pango_layout_get_pixel_extents(layout, NULL, &rect);
255 if (align & ALIGN_VCENTRE)
256 rect.y -= rect.height / 2;
258 if (align & ALIGN_HCENTRE)
259 rect.x -= rect.width / 2;
260 else if (align & ALIGN_HRIGHT)
261 rect.x -= rect.width;
263 gdk_draw_layout(fe->pixmap, fe->gc, rect.x + x, rect.y + y, layout);
265 g_object_unref(layout);
270 * Find string dimensions and process alignment.
273 int lb, rb, wid, asc, desc;
276 * Measure vertical string extents with respect to the same
279 gdk_string_extents(fe->fonts[i].font,
280 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
281 &lb, &rb, &wid, &asc, &desc);
282 if (align & ALIGN_VCENTRE)
283 y += asc - (asc+desc)/2;
286 * ... but horizontal extents with respect to the provided
287 * string. This means that multiple pieces of text centred
288 * on the same y-coordinate don't have different baselines.
290 gdk_string_extents(fe->fonts[i].font, text,
291 &lb, &rb, &wid, &asc, &desc);
293 if (align & ALIGN_HCENTRE)
295 else if (align & ALIGN_HRIGHT)
301 * Actually draw the text.
303 gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
308 void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
310 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
311 gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
314 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
316 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
317 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
320 void draw_polygon(frontend *fe, int *coords, int npoints,
321 int fill, int colour)
323 GdkPoint *points = snewn(npoints, GdkPoint);
326 for (i = 0; i < npoints; i++) {
327 points[i].x = coords[i*2];
328 points[i].y = coords[i*2+1];
331 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
332 gdk_draw_polygon(fe->pixmap, fe->gc, fill, points, npoints);
337 void draw_update(frontend *fe, int x, int y, int w, int h)
339 if (fe->bbox_l > x ) fe->bbox_l = x ;
340 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
341 if (fe->bbox_u > y ) fe->bbox_u = y ;
342 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
345 void end_draw(frontend *fe)
347 gdk_gc_unref(fe->gc);
350 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
351 gdk_draw_pixmap(fe->area->window,
352 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
354 fe->bbox_l, fe->bbox_u,
355 fe->ox + fe->bbox_l, fe->oy + fe->bbox_u,
356 fe->bbox_r - fe->bbox_l, fe->bbox_d - fe->bbox_u);
360 static void destroy(GtkWidget *widget, gpointer data)
362 frontend *fe = (frontend *)data;
363 deactivate_timer(fe);
367 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
369 frontend *fe = (frontend *)data;
371 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
372 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
377 if (event->keyval == GDK_Up)
378 keyval = shift | ctrl | CURSOR_UP;
379 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
380 keyval = MOD_NUM_KEYPAD | '8';
381 else if (event->keyval == GDK_Down)
382 keyval = shift | ctrl | CURSOR_DOWN;
383 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
384 keyval = MOD_NUM_KEYPAD | '2';
385 else if (event->keyval == GDK_Left)
386 keyval = shift | ctrl | CURSOR_LEFT;
387 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
388 keyval = MOD_NUM_KEYPAD | '4';
389 else if (event->keyval == GDK_Right)
390 keyval = shift | ctrl | CURSOR_RIGHT;
391 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
392 keyval = MOD_NUM_KEYPAD | '6';
393 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
394 keyval = MOD_NUM_KEYPAD | '7';
395 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
396 keyval = MOD_NUM_KEYPAD | '1';
397 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
398 keyval = MOD_NUM_KEYPAD | '9';
399 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
400 keyval = MOD_NUM_KEYPAD | '3';
401 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
402 keyval = MOD_NUM_KEYPAD | '0';
403 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
404 keyval = MOD_NUM_KEYPAD | '5';
405 else if (event->string[0] && !event->string[1])
406 keyval = (unsigned char)event->string[0];
411 !midend_process_key(fe->me, 0, 0, keyval))
412 gtk_widget_destroy(fe->window);
417 static gint button_event(GtkWidget *widget, GdkEventButton *event,
420 frontend *fe = (frontend *)data;
426 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
429 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
430 button = MIDDLE_BUTTON;
431 else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
432 button = RIGHT_BUTTON;
433 else if (event->button == 1)
434 button = LEFT_BUTTON;
436 return FALSE; /* don't even know what button! */
438 if (event->type == GDK_BUTTON_RELEASE)
439 button += LEFT_RELEASE - LEFT_BUTTON;
441 if (!midend_process_key(fe->me, event->x - fe->ox,
442 event->y - fe->oy, button))
443 gtk_widget_destroy(fe->window);
448 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
451 frontend *fe = (frontend *)data;
457 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
458 button = MIDDLE_DRAG;
459 else if (event->state & GDK_BUTTON1_MASK)
461 else if (event->state & GDK_BUTTON3_MASK)
464 return FALSE; /* don't even know what button! */
466 if (!midend_process_key(fe->me, event->x - fe->ox,
467 event->y - fe->oy, button))
468 gtk_widget_destroy(fe->window);
473 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
476 frontend *fe = (frontend *)data;
479 gdk_draw_pixmap(widget->window,
480 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
482 event->area.x - fe->ox, event->area.y - fe->oy,
483 event->area.x, event->area.y,
484 event->area.width, event->area.height);
489 static gint map_window(GtkWidget *widget, GdkEvent *event,
492 frontend *fe = (frontend *)data;
495 * Apparently we need to do this because otherwise the status
496 * bar will fail to update immediately. Annoying, but there we
499 gtk_widget_queue_draw(fe->window);
504 static gint configure_area(GtkWidget *widget,
505 GdkEventConfigure *event, gpointer data)
507 frontend *fe = (frontend *)data;
512 gdk_pixmap_unref(fe->pixmap);
514 x = fe->w = event->width;
515 y = fe->h = event->height;
516 midend_size(fe->me, &x, &y, TRUE);
519 fe->ox = (fe->w - fe->pw) / 2;
520 fe->oy = (fe->h - fe->ph) / 2;
522 fe->pixmap = gdk_pixmap_new(widget->window, fe->pw, fe->ph, -1);
524 gc = gdk_gc_new(fe->area->window);
525 gdk_gc_set_foreground(gc, &fe->colours[0]);
526 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->pw, fe->ph);
529 midend_force_redraw(fe->me);
534 static gint timer_func(gpointer data)
536 frontend *fe = (frontend *)data;
538 if (fe->timer_active) {
541 gettimeofday(&now, NULL);
542 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
543 (now.tv_sec - fe->last_time.tv_sec));
544 midend_timer(fe->me, elapsed); /* may clear timer_active */
548 return fe->timer_active;
551 void deactivate_timer(frontend *fe)
553 if (fe->timer_active)
554 gtk_timeout_remove(fe->timer_id);
555 fe->timer_active = FALSE;
558 void activate_timer(frontend *fe)
560 if (!fe->timer_active) {
561 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
562 gettimeofday(&fe->last_time, NULL);
564 fe->timer_active = TRUE;
567 static void window_destroy(GtkWidget *widget, gpointer data)
572 static void errmsg_button_clicked(GtkButton *button, gpointer data)
574 gtk_widget_destroy(GTK_WIDGET(data));
577 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
579 GtkObject *cancelbutton = GTK_OBJECT(data);
582 * `Escape' effectively clicks the cancel button
584 if (event->keyval == GDK_Escape) {
585 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
592 void message_box(GtkWidget *parent, char *title, char *msg, int centre)
594 GtkWidget *window, *hbox, *text, *ok;
596 window = gtk_dialog_new();
597 text = gtk_label_new(msg);
598 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
599 hbox = gtk_hbox_new(FALSE, 0);
600 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
601 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
602 hbox, FALSE, FALSE, 20);
603 gtk_widget_show(text);
604 gtk_widget_show(hbox);
605 gtk_window_set_title(GTK_WINDOW(window), title);
606 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
607 ok = gtk_button_new_with_label("OK");
608 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
609 ok, FALSE, FALSE, 0);
611 GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
612 gtk_window_set_default(GTK_WINDOW(window), ok);
613 gtk_signal_connect(GTK_OBJECT(ok), "clicked",
614 GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
615 gtk_signal_connect(GTK_OBJECT(window), "destroy",
616 GTK_SIGNAL_FUNC(window_destroy), NULL);
617 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
618 GTK_SIGNAL_FUNC(win_key_press), ok);
619 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
620 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
621 /* set_transient_window_pos(parent, window); */
622 gtk_widget_show(window);
626 void error_box(GtkWidget *parent, char *msg)
628 message_box(parent, "Error", msg, FALSE);
631 static void config_ok_button_clicked(GtkButton *button, gpointer data)
633 frontend *fe = (frontend *)data;
636 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
639 error_box(fe->cfgbox, err);
642 gtk_widget_destroy(fe->cfgbox);
646 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
648 frontend *fe = (frontend *)data;
650 gtk_widget_destroy(fe->cfgbox);
653 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
656 * GtkEntry has a nasty habit of eating the Return key, which
657 * is unhelpful since it doesn't actually _do_ anything with it
658 * (it calls gtk_widget_activate, but our edit boxes never need
659 * activating). So I catch Return before GtkEntry sees it, and
660 * pass it straight on to the parent widget. Effect: hitting
661 * Return in an edit box will now activate the default button
662 * in the dialog just like it will everywhere else.
664 if (event->keyval == GDK_Return && widget->parent != NULL) {
666 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
667 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
674 static void editbox_changed(GtkEditable *ed, gpointer data)
676 config_item *i = (config_item *)data;
679 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
682 static void button_toggled(GtkToggleButton *tb, gpointer data)
684 config_item *i = (config_item *)data;
686 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
689 static void droplist_sel(GtkMenuItem *item, gpointer data)
691 config_item *i = (config_item *)data;
693 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
697 static int get_config(frontend *fe, int which)
699 GtkWidget *w, *table, *cancel;
704 fe->cfg = midend_get_config(fe->me, which, &title);
705 fe->cfg_which = which;
708 fe->cfgbox = gtk_dialog_new();
709 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
712 w = gtk_button_new_with_label("OK");
713 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
716 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
717 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
718 gtk_signal_connect(GTK_OBJECT(w), "clicked",
719 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
721 w = gtk_button_new_with_label("Cancel");
722 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
725 gtk_signal_connect(GTK_OBJECT(w), "clicked",
726 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
729 table = gtk_table_new(1, 2, FALSE);
731 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
732 table, FALSE, FALSE, 0);
733 gtk_widget_show(table);
735 for (i = fe->cfg; i->type != C_END; i++) {
736 gtk_table_resize(GTK_TABLE(table), y+1, 2);
741 * Edit box with a label beside it.
744 w = gtk_label_new(i->name);
745 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
746 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
747 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
748 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
753 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
754 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
755 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
757 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
758 gtk_signal_connect(GTK_OBJECT(w), "changed",
759 GTK_SIGNAL_FUNC(editbox_changed), i);
760 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
761 GTK_SIGNAL_FUNC(editbox_key), NULL);
770 w = gtk_check_button_new_with_label(i->name);
771 gtk_signal_connect(GTK_OBJECT(w), "toggled",
772 GTK_SIGNAL_FUNC(button_toggled), i);
773 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
774 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
775 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
777 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
783 * Drop-down list (GtkOptionMenu).
786 w = gtk_label_new(i->name);
787 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
788 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
789 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
790 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
794 w = gtk_option_menu_new();
795 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
796 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
797 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
805 GtkWidget *menu = gtk_menu_new();
807 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
815 while (*q && *q != c)
818 name = snewn(q-p+1, char);
819 strncpy(name, p, q-p);
822 if (*q) q++; /* eat delimiter */
824 menuitem = gtk_menu_item_new_with_label(name);
825 gtk_container_add(GTK_CONTAINER(menu), menuitem);
826 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
827 GINT_TO_POINTER(val));
828 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
829 GTK_SIGNAL_FUNC(droplist_sel), i);
830 gtk_widget_show(menuitem);
837 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
846 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
847 GTK_SIGNAL_FUNC(window_destroy), NULL);
848 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
849 GTK_SIGNAL_FUNC(win_key_press), cancel);
850 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
851 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
852 GTK_WINDOW(fe->window));
853 /* set_transient_window_pos(fe->window, fe->cfgbox); */
854 gtk_widget_show(fe->cfgbox);
862 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
864 frontend *fe = (frontend *)data;
865 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
867 if (!midend_process_key(fe->me, 0, 0, key))
868 gtk_widget_destroy(fe->window);
871 static void get_size(frontend *fe, int *px, int *py)
876 * Currently I don't want to make the GTK port scale large
877 * puzzles to fit on the screen. This is because X does permit
878 * extremely large windows and many window managers provide a
879 * means of navigating round them, and the users I consulted
880 * before deciding said that they'd rather have enormous puzzle
881 * windows spanning multiple screen pages than have them
882 * shrunk. I could change my mind later or introduce
883 * configurability; this would be the place to do so, by
884 * replacing the initial values of x and y with the screen
889 midend_size(fe->me, &x, &y, FALSE);
894 #if !GTK_CHECK_VERSION(2,0,0)
895 #define gtk_window_resize(win, x, y) \
896 gdk_window_resize(GTK_WIDGET(win)->window, x, y)
899 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
901 frontend *fe = (frontend *)data;
902 game_params *params =
903 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
906 midend_set_params(fe->me, params);
907 midend_new_game(fe->me);
908 get_size(fe, &x, &y);
911 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
912 gtk_window_resize(GTK_WINDOW(fe->window), 1, 1);
915 GdkAtom compound_text_atom, utf8_string_atom;
916 int paste_initialised = FALSE;
920 unsigned char empty[] = { 0 };
922 if (paste_initialised)
925 if (!compound_text_atom)
926 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
927 if (!utf8_string_atom)
928 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
931 * Ensure that all the cut buffers exist - according to the
932 * ICCCM, we must do this before we start using cut buffers.
934 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
935 XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, empty, 0);
936 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
937 XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, empty, 0);
938 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
939 XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, empty, 0);
940 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
941 XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, empty, 0);
942 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
943 XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, empty, 0);
944 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
945 XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, empty, 0);
946 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
947 XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, empty, 0);
948 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
949 XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, empty, 0);
952 /* Store data in a cut-buffer. */
953 void store_cutbuffer(char *ptr, int len)
955 /* ICCCM says we must rotate the buffers before storing to buffer 0. */
956 XRotateBuffers(GDK_DISPLAY(), 1);
957 XStoreBytes(GDK_DISPLAY(), ptr, len);
960 void write_clip(frontend *fe, char *data)
965 sfree(fe->paste_data);
968 * For this simple application we can safely assume that the
969 * data passed to this function is pure ASCII, which means we
970 * can return precisely the same stuff for types STRING,
971 * COMPOUND_TEXT or UTF8_STRING.
974 fe->paste_data = data;
975 fe->paste_data_len = strlen(data);
977 store_cutbuffer(fe->paste_data, fe->paste_data_len);
979 if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
981 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
982 GDK_SELECTION_TYPE_STRING, 1);
983 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
984 compound_text_atom, 1);
985 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
986 utf8_string_atom, 1);
990 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
991 guint info, guint time_stamp, gpointer data)
993 frontend *fe = (frontend *)data;
994 gtk_selection_data_set(seldata, seldata->target, 8,
995 fe->paste_data, fe->paste_data_len);
998 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
1001 frontend *fe = (frontend *)data;
1004 sfree(fe->paste_data);
1005 fe->paste_data = NULL;
1006 fe->paste_data_len = 0;
1010 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
1012 frontend *fe = (frontend *)data;
1015 text = midend_text_format(fe->me);
1018 write_clip(fe, text);
1024 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
1026 frontend *fe = (frontend *)data;
1029 msg = midend_solve(fe->me);
1032 error_box(fe->window, msg);
1035 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
1037 frontend *fe = (frontend *)data;
1039 midend_restart_game(fe->me);
1042 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
1044 frontend *fe = (frontend *)data;
1045 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
1049 if (!get_config(fe, which))
1052 midend_new_game(fe->me);
1053 get_size(fe, &x, &y);
1056 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1057 gtk_window_resize(GTK_WINDOW(fe->window), 1, 1);
1060 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
1062 frontend *fe = (frontend *)data;
1066 sprintf(titlebuf, "About %.200s", thegame.name);
1069 "from Simon Tatham's Portable Puzzle Collection\n\n"
1070 "%.500s", thegame.name, ver);
1072 message_box(fe->window, titlebuf, textbuf, TRUE);
1075 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
1076 char *text, int key)
1078 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
1079 gtk_container_add(cont, menuitem);
1080 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1081 GINT_TO_POINTER(key));
1082 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1083 GTK_SIGNAL_FUNC(menu_key_event), fe);
1084 gtk_widget_show(menuitem);
1088 static void add_menu_separator(GtkContainer *cont)
1090 GtkWidget *menuitem = gtk_menu_item_new();
1091 gtk_container_add(cont, menuitem);
1092 gtk_widget_show(menuitem);
1095 static frontend *new_window(char *game_id, char **error)
1099 GtkWidget *menubar, *menu, *menuitem;
1102 fe = snew(frontend);
1104 fe->timer_active = FALSE;
1107 fe->me = midend_new(fe, &thegame);
1110 *error = midend_game_id(fe->me, game_id);
1112 midend_free(fe->me);
1117 midend_new_game(fe->me);
1119 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1120 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
1122 gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
1124 gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
1126 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
1127 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
1128 gtk_widget_show(GTK_WIDGET(vbox));
1130 menubar = gtk_menu_bar_new();
1131 gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
1132 gtk_widget_show(menubar);
1134 menuitem = gtk_menu_item_new_with_label("Game");
1135 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1136 gtk_widget_show(menuitem);
1138 menu = gtk_menu_new();
1139 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1141 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
1143 menuitem = gtk_menu_item_new_with_label("Restart");
1144 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1145 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1146 GTK_SIGNAL_FUNC(menu_restart_event), fe);
1147 gtk_widget_show(menuitem);
1149 menuitem = gtk_menu_item_new_with_label("Specific...");
1150 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1151 GINT_TO_POINTER(CFG_DESC));
1152 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1153 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1154 GTK_SIGNAL_FUNC(menu_config_event), fe);
1155 gtk_widget_show(menuitem);
1157 menuitem = gtk_menu_item_new_with_label("Random Seed...");
1158 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1159 GINT_TO_POINTER(CFG_SEED));
1160 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1161 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1162 GTK_SIGNAL_FUNC(menu_config_event), fe);
1163 gtk_widget_show(menuitem);
1165 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
1169 menuitem = gtk_menu_item_new_with_label("Type");
1170 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1171 gtk_widget_show(menuitem);
1173 submenu = gtk_menu_new();
1174 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
1176 for (i = 0; i < n; i++) {
1178 game_params *params;
1180 midend_fetch_preset(fe->me, i, &name, ¶ms);
1182 menuitem = gtk_menu_item_new_with_label(name);
1183 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1184 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
1185 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1186 GTK_SIGNAL_FUNC(menu_preset_event), fe);
1187 gtk_widget_show(menuitem);
1190 if (thegame.can_configure) {
1191 menuitem = gtk_menu_item_new_with_label("Custom...");
1192 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1193 GPOINTER_TO_INT(CFG_SETTINGS));
1194 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1195 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1196 GTK_SIGNAL_FUNC(menu_config_event), fe);
1197 gtk_widget_show(menuitem);
1201 add_menu_separator(GTK_CONTAINER(menu));
1202 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
1203 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
1204 if (thegame.can_format_as_text) {
1205 add_menu_separator(GTK_CONTAINER(menu));
1206 menuitem = gtk_menu_item_new_with_label("Copy");
1207 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1208 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1209 GTK_SIGNAL_FUNC(menu_copy_event), fe);
1210 gtk_widget_show(menuitem);
1212 if (thegame.can_solve) {
1213 add_menu_separator(GTK_CONTAINER(menu));
1214 menuitem = gtk_menu_item_new_with_label("Solve");
1215 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1216 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1217 GTK_SIGNAL_FUNC(menu_solve_event), fe);
1218 gtk_widget_show(menuitem);
1220 add_menu_separator(GTK_CONTAINER(menu));
1221 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
1223 menuitem = gtk_menu_item_new_with_label("Help");
1224 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1225 gtk_widget_show(menuitem);
1227 menu = gtk_menu_new();
1228 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1230 menuitem = gtk_menu_item_new_with_label("About");
1231 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1232 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1233 GTK_SIGNAL_FUNC(menu_about_event), fe);
1234 gtk_widget_show(menuitem);
1241 fe->colmap = gdk_colormap_get_system();
1242 colours = midend_colours(fe->me, &ncolours);
1243 fe->ncolours = ncolours;
1244 fe->colours = snewn(ncolours, GdkColor);
1245 for (i = 0; i < ncolours; i++) {
1246 fe->colours[i].red = colours[i*3] * 0xFFFF;
1247 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
1248 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
1250 success = snewn(ncolours, gboolean);
1251 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
1252 FALSE, FALSE, success);
1253 for (i = 0; i < ncolours; i++) {
1255 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
1256 i, fe->colours[i].red >> 8,
1257 fe->colours[i].green >> 8,
1258 fe->colours[i].blue >> 8);
1262 if (midend_wants_statusbar(fe->me)) {
1263 GtkWidget *viewport;
1266 viewport = gtk_viewport_new(NULL, NULL);
1267 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
1268 fe->statusbar = gtk_statusbar_new();
1269 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
1270 gtk_widget_show(viewport);
1271 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
1272 gtk_widget_show(fe->statusbar);
1273 fe->statusctx = gtk_statusbar_get_context_id
1274 (GTK_STATUSBAR(fe->statusbar), "game");
1275 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
1277 gtk_widget_size_request(fe->statusbar, &req);
1279 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
1281 gtk_widget_set_usize(viewport, -1, req.height);
1283 fe->statusbar = NULL;
1285 fe->area = gtk_drawing_area_new();
1286 get_size(fe, &x, &y);
1287 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1291 gtk_box_pack_end(vbox, fe->area, TRUE, TRUE, 0);
1295 fe->nfonts = fe->fontsize = 0;
1297 fe->laststatus = NULL;
1299 fe->paste_data = NULL;
1300 fe->paste_data_len = 0;
1302 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
1303 GTK_SIGNAL_FUNC(destroy), fe);
1304 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
1305 GTK_SIGNAL_FUNC(key_event), fe);
1306 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
1307 GTK_SIGNAL_FUNC(button_event), fe);
1308 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
1309 GTK_SIGNAL_FUNC(button_event), fe);
1310 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
1311 GTK_SIGNAL_FUNC(motion_event), fe);
1312 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
1313 GTK_SIGNAL_FUNC(selection_get), fe);
1314 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
1315 GTK_SIGNAL_FUNC(selection_clear), fe);
1316 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
1317 GTK_SIGNAL_FUNC(expose_area), fe);
1318 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
1319 GTK_SIGNAL_FUNC(map_window), fe);
1320 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
1321 GTK_SIGNAL_FUNC(configure_area), fe);
1323 gtk_widget_add_events(GTK_WIDGET(fe->area),
1324 GDK_BUTTON_PRESS_MASK |
1325 GDK_BUTTON_RELEASE_MASK |
1326 GDK_BUTTON_MOTION_MASK);
1328 gtk_widget_show(fe->area);
1329 gtk_widget_show(fe->window);
1331 gdk_window_set_background(fe->area->window, &fe->colours[0]);
1332 gdk_window_set_background(fe->window->window, &fe->colours[0]);
1337 int main(int argc, char **argv)
1339 char *pname = argv[0];
1342 if (argc > 1 && !strcmp(argv[1], "--version")) {
1343 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
1349 * Special standalone mode for generating puzzle IDs on the
1350 * command line. Useful for generating puzzles to be printed
1351 * out and solved offline (for puzzles where that even makes
1352 * sense - Solo, for example, is a lot more pencil-and-paper
1353 * friendly than Net!)
1357 * <puzzle-name> --generate [<n> [<params>]]
1359 * <n>, if present, is the number of puzzle IDs to generate.
1360 * <params>, if present, is the same type of parameter string
1361 * you would pass to the puzzle when running it in GUI mode,
1362 * including optional extras such as the expansion factor in
1363 * Rectangles and the difficulty level in Solo.
1365 * If you specify <params>, you must also specify <n> (although
1366 * you may specify it to be 1). Sorry; that was the
1367 * simplest-to-parse command-line syntax I came up with.
1369 if (argc > 1 && !strcmp(argv[1], "--generate")) {
1371 char *params = NULL, *seed = NULL;
1381 par = thegame.default_params();
1383 if ( (seed = strchr(params, '#')) != NULL )
1385 thegame.decode_params(par, params);
1387 if ((error = thegame.validate_params(par)) != NULL) {
1388 fprintf(stderr, "%s: %s\n", pname, error);
1391 parstr = thegame.encode_params(par, FALSE);
1398 seedlen = strlen(seed);
1400 get_random_seed(&seeddata, &seedlen);
1402 rs = random_init(seeddata, seedlen);
1406 game_aux_info *aux = NULL;
1407 char *desc = thegame.new_desc(par, rs, &aux, FALSE);
1408 printf("%s:%s\n", parstr, desc);
1411 thegame.free_aux_info(aux);
1417 gtk_init(&argc, &argv);
1419 if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
1420 fprintf(stderr, "%s: %s\n", pname, error);