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_circle(frontend *fe, int cx, int cy, int radius,
338 int fill, int colour)
340 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
341 gdk_draw_arc(fe->pixmap, fe->gc, fill,
342 cx - radius, cy - radius,
343 2 * radius, 2 * radius, 0, 360 * 64);
351 blitter *blitter_new(int w, int h)
354 * We can't create the pixmap right now, because fe->window
355 * might not yet exist. So we just cache w and h and create it
356 * during the firs call to blitter_save.
358 blitter *bl = snew(blitter);
365 void blitter_free(blitter *bl)
368 gdk_pixmap_unref(bl->pixmap);
372 void blitter_save(frontend *fe, blitter *bl, int x, int y)
375 bl->pixmap = gdk_pixmap_new(fe->area->window, bl->w, bl->h, -1);
378 gdk_draw_pixmap(bl->pixmap,
379 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
381 x, y, 0, 0, bl->w, bl->h);
384 void blitter_load(frontend *fe, blitter *bl, int x, int y)
387 if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
391 gdk_draw_pixmap(fe->pixmap,
392 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
394 0, 0, x, y, bl->w, bl->h);
397 void draw_update(frontend *fe, int x, int y, int w, int h)
399 if (fe->bbox_l > x ) fe->bbox_l = x ;
400 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
401 if (fe->bbox_u > y ) fe->bbox_u = y ;
402 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
405 void end_draw(frontend *fe)
407 gdk_gc_unref(fe->gc);
410 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
411 gdk_draw_pixmap(fe->area->window,
412 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
414 fe->bbox_l, fe->bbox_u,
415 fe->ox + fe->bbox_l, fe->oy + fe->bbox_u,
416 fe->bbox_r - fe->bbox_l, fe->bbox_d - fe->bbox_u);
420 static void destroy(GtkWidget *widget, gpointer data)
422 frontend *fe = (frontend *)data;
423 deactivate_timer(fe);
427 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
429 frontend *fe = (frontend *)data;
431 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
432 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
437 if (event->keyval == GDK_Up)
438 keyval = shift | ctrl | CURSOR_UP;
439 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
440 keyval = MOD_NUM_KEYPAD | '8';
441 else if (event->keyval == GDK_Down)
442 keyval = shift | ctrl | CURSOR_DOWN;
443 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
444 keyval = MOD_NUM_KEYPAD | '2';
445 else if (event->keyval == GDK_Left)
446 keyval = shift | ctrl | CURSOR_LEFT;
447 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
448 keyval = MOD_NUM_KEYPAD | '4';
449 else if (event->keyval == GDK_Right)
450 keyval = shift | ctrl | CURSOR_RIGHT;
451 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
452 keyval = MOD_NUM_KEYPAD | '6';
453 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
454 keyval = MOD_NUM_KEYPAD | '7';
455 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
456 keyval = MOD_NUM_KEYPAD | '1';
457 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
458 keyval = MOD_NUM_KEYPAD | '9';
459 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
460 keyval = MOD_NUM_KEYPAD | '3';
461 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
462 keyval = MOD_NUM_KEYPAD | '0';
463 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
464 keyval = MOD_NUM_KEYPAD | '5';
465 else if (event->string[0] && !event->string[1])
466 keyval = (unsigned char)event->string[0];
471 !midend_process_key(fe->me, 0, 0, keyval))
472 gtk_widget_destroy(fe->window);
477 static gint button_event(GtkWidget *widget, GdkEventButton *event,
480 frontend *fe = (frontend *)data;
486 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
489 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
490 button = MIDDLE_BUTTON;
491 else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
492 button = RIGHT_BUTTON;
493 else if (event->button == 1)
494 button = LEFT_BUTTON;
496 return FALSE; /* don't even know what button! */
498 if (event->type == GDK_BUTTON_RELEASE)
499 button += LEFT_RELEASE - LEFT_BUTTON;
501 if (!midend_process_key(fe->me, event->x - fe->ox,
502 event->y - fe->oy, button))
503 gtk_widget_destroy(fe->window);
508 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
511 frontend *fe = (frontend *)data;
517 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
518 button = MIDDLE_DRAG;
519 else if (event->state & GDK_BUTTON1_MASK)
521 else if (event->state & GDK_BUTTON3_MASK)
524 return FALSE; /* don't even know what button! */
526 if (!midend_process_key(fe->me, event->x - fe->ox,
527 event->y - fe->oy, button))
528 gtk_widget_destroy(fe->window);
533 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
536 frontend *fe = (frontend *)data;
539 gdk_draw_pixmap(widget->window,
540 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
542 event->area.x - fe->ox, event->area.y - fe->oy,
543 event->area.x, event->area.y,
544 event->area.width, event->area.height);
549 static gint map_window(GtkWidget *widget, GdkEvent *event,
552 frontend *fe = (frontend *)data;
555 * Apparently we need to do this because otherwise the status
556 * bar will fail to update immediately. Annoying, but there we
559 gtk_widget_queue_draw(fe->window);
564 static gint configure_area(GtkWidget *widget,
565 GdkEventConfigure *event, gpointer data)
567 frontend *fe = (frontend *)data;
572 gdk_pixmap_unref(fe->pixmap);
574 x = fe->w = event->width;
575 y = fe->h = event->height;
576 midend_size(fe->me, &x, &y, TRUE);
579 fe->ox = (fe->w - fe->pw) / 2;
580 fe->oy = (fe->h - fe->ph) / 2;
582 fe->pixmap = gdk_pixmap_new(widget->window, fe->pw, fe->ph, -1);
584 gc = gdk_gc_new(fe->area->window);
585 gdk_gc_set_foreground(gc, &fe->colours[0]);
586 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->pw, fe->ph);
589 midend_force_redraw(fe->me);
594 static gint timer_func(gpointer data)
596 frontend *fe = (frontend *)data;
598 if (fe->timer_active) {
601 gettimeofday(&now, NULL);
602 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
603 (now.tv_sec - fe->last_time.tv_sec));
604 midend_timer(fe->me, elapsed); /* may clear timer_active */
608 return fe->timer_active;
611 void deactivate_timer(frontend *fe)
613 if (fe->timer_active)
614 gtk_timeout_remove(fe->timer_id);
615 fe->timer_active = FALSE;
618 void activate_timer(frontend *fe)
620 if (!fe->timer_active) {
621 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
622 gettimeofday(&fe->last_time, NULL);
624 fe->timer_active = TRUE;
627 static void window_destroy(GtkWidget *widget, gpointer data)
632 static void errmsg_button_clicked(GtkButton *button, gpointer data)
634 gtk_widget_destroy(GTK_WIDGET(data));
637 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
639 GtkObject *cancelbutton = GTK_OBJECT(data);
642 * `Escape' effectively clicks the cancel button
644 if (event->keyval == GDK_Escape) {
645 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
652 void message_box(GtkWidget *parent, char *title, char *msg, int centre)
654 GtkWidget *window, *hbox, *text, *ok;
656 window = gtk_dialog_new();
657 text = gtk_label_new(msg);
658 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
659 hbox = gtk_hbox_new(FALSE, 0);
660 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
661 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
662 hbox, FALSE, FALSE, 20);
663 gtk_widget_show(text);
664 gtk_widget_show(hbox);
665 gtk_window_set_title(GTK_WINDOW(window), title);
666 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
667 ok = gtk_button_new_with_label("OK");
668 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
669 ok, FALSE, FALSE, 0);
671 GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
672 gtk_window_set_default(GTK_WINDOW(window), ok);
673 gtk_signal_connect(GTK_OBJECT(ok), "clicked",
674 GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
675 gtk_signal_connect(GTK_OBJECT(window), "destroy",
676 GTK_SIGNAL_FUNC(window_destroy), NULL);
677 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
678 GTK_SIGNAL_FUNC(win_key_press), ok);
679 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
680 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
681 /* set_transient_window_pos(parent, window); */
682 gtk_widget_show(window);
686 void error_box(GtkWidget *parent, char *msg)
688 message_box(parent, "Error", msg, FALSE);
691 static void config_ok_button_clicked(GtkButton *button, gpointer data)
693 frontend *fe = (frontend *)data;
696 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
699 error_box(fe->cfgbox, err);
702 gtk_widget_destroy(fe->cfgbox);
706 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
708 frontend *fe = (frontend *)data;
710 gtk_widget_destroy(fe->cfgbox);
713 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
716 * GtkEntry has a nasty habit of eating the Return key, which
717 * is unhelpful since it doesn't actually _do_ anything with it
718 * (it calls gtk_widget_activate, but our edit boxes never need
719 * activating). So I catch Return before GtkEntry sees it, and
720 * pass it straight on to the parent widget. Effect: hitting
721 * Return in an edit box will now activate the default button
722 * in the dialog just like it will everywhere else.
724 if (event->keyval == GDK_Return && widget->parent != NULL) {
726 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
727 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
734 static void editbox_changed(GtkEditable *ed, gpointer data)
736 config_item *i = (config_item *)data;
739 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
742 static void button_toggled(GtkToggleButton *tb, gpointer data)
744 config_item *i = (config_item *)data;
746 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
749 static void droplist_sel(GtkMenuItem *item, gpointer data)
751 config_item *i = (config_item *)data;
753 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
757 static int get_config(frontend *fe, int which)
759 GtkWidget *w, *table, *cancel;
764 fe->cfg = midend_get_config(fe->me, which, &title);
765 fe->cfg_which = which;
768 fe->cfgbox = gtk_dialog_new();
769 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
772 w = gtk_button_new_with_label("OK");
773 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
776 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
777 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
778 gtk_signal_connect(GTK_OBJECT(w), "clicked",
779 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
781 w = gtk_button_new_with_label("Cancel");
782 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
785 gtk_signal_connect(GTK_OBJECT(w), "clicked",
786 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
789 table = gtk_table_new(1, 2, FALSE);
791 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
792 table, FALSE, FALSE, 0);
793 gtk_widget_show(table);
795 for (i = fe->cfg; i->type != C_END; i++) {
796 gtk_table_resize(GTK_TABLE(table), y+1, 2);
801 * Edit box with a label beside it.
804 w = gtk_label_new(i->name);
805 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
806 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
807 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
808 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
813 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
814 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
815 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
817 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
818 gtk_signal_connect(GTK_OBJECT(w), "changed",
819 GTK_SIGNAL_FUNC(editbox_changed), i);
820 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
821 GTK_SIGNAL_FUNC(editbox_key), NULL);
830 w = gtk_check_button_new_with_label(i->name);
831 gtk_signal_connect(GTK_OBJECT(w), "toggled",
832 GTK_SIGNAL_FUNC(button_toggled), i);
833 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
834 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
835 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
837 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
843 * Drop-down list (GtkOptionMenu).
846 w = gtk_label_new(i->name);
847 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
848 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
849 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
850 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
854 w = gtk_option_menu_new();
855 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
856 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
857 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
865 GtkWidget *menu = gtk_menu_new();
867 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
875 while (*q && *q != c)
878 name = snewn(q-p+1, char);
879 strncpy(name, p, q-p);
882 if (*q) q++; /* eat delimiter */
884 menuitem = gtk_menu_item_new_with_label(name);
885 gtk_container_add(GTK_CONTAINER(menu), menuitem);
886 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
887 GINT_TO_POINTER(val));
888 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
889 GTK_SIGNAL_FUNC(droplist_sel), i);
890 gtk_widget_show(menuitem);
897 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
906 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
907 GTK_SIGNAL_FUNC(window_destroy), NULL);
908 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
909 GTK_SIGNAL_FUNC(win_key_press), cancel);
910 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
911 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
912 GTK_WINDOW(fe->window));
913 /* set_transient_window_pos(fe->window, fe->cfgbox); */
914 gtk_widget_show(fe->cfgbox);
922 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
924 frontend *fe = (frontend *)data;
925 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
927 if (!midend_process_key(fe->me, 0, 0, key))
928 gtk_widget_destroy(fe->window);
931 static void get_size(frontend *fe, int *px, int *py)
936 * Currently I don't want to make the GTK port scale large
937 * puzzles to fit on the screen. This is because X does permit
938 * extremely large windows and many window managers provide a
939 * means of navigating round them, and the users I consulted
940 * before deciding said that they'd rather have enormous puzzle
941 * windows spanning multiple screen pages than have them
942 * shrunk. I could change my mind later or introduce
943 * configurability; this would be the place to do so, by
944 * replacing the initial values of x and y with the screen
949 midend_size(fe->me, &x, &y, FALSE);
954 #if !GTK_CHECK_VERSION(2,0,0)
955 #define gtk_window_resize(win, x, y) \
956 gdk_window_resize(GTK_WIDGET(win)->window, x, y)
959 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
961 frontend *fe = (frontend *)data;
962 game_params *params =
963 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
966 midend_set_params(fe->me, params);
967 midend_new_game(fe->me);
968 get_size(fe, &x, &y);
971 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
972 gtk_window_resize(GTK_WINDOW(fe->window), 1, 1);
975 GdkAtom compound_text_atom, utf8_string_atom;
976 int paste_initialised = FALSE;
980 unsigned char empty[] = { 0 };
982 if (paste_initialised)
985 if (!compound_text_atom)
986 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
987 if (!utf8_string_atom)
988 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
991 * Ensure that all the cut buffers exist - according to the
992 * ICCCM, we must do this before we start using cut buffers.
994 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
995 XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, empty, 0);
996 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
997 XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, empty, 0);
998 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
999 XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, empty, 0);
1000 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
1001 XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, empty, 0);
1002 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
1003 XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, empty, 0);
1004 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
1005 XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, empty, 0);
1006 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
1007 XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, empty, 0);
1008 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
1009 XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, empty, 0);
1012 /* Store data in a cut-buffer. */
1013 void store_cutbuffer(char *ptr, int len)
1015 /* ICCCM says we must rotate the buffers before storing to buffer 0. */
1016 XRotateBuffers(GDK_DISPLAY(), 1);
1017 XStoreBytes(GDK_DISPLAY(), ptr, len);
1020 void write_clip(frontend *fe, char *data)
1025 sfree(fe->paste_data);
1028 * For this simple application we can safely assume that the
1029 * data passed to this function is pure ASCII, which means we
1030 * can return precisely the same stuff for types STRING,
1031 * COMPOUND_TEXT or UTF8_STRING.
1034 fe->paste_data = data;
1035 fe->paste_data_len = strlen(data);
1037 store_cutbuffer(fe->paste_data, fe->paste_data_len);
1039 if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
1041 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
1042 GDK_SELECTION_TYPE_STRING, 1);
1043 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
1044 compound_text_atom, 1);
1045 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
1046 utf8_string_atom, 1);
1050 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
1051 guint info, guint time_stamp, gpointer data)
1053 frontend *fe = (frontend *)data;
1054 gtk_selection_data_set(seldata, seldata->target, 8,
1055 fe->paste_data, fe->paste_data_len);
1058 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
1061 frontend *fe = (frontend *)data;
1064 sfree(fe->paste_data);
1065 fe->paste_data = NULL;
1066 fe->paste_data_len = 0;
1070 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
1072 frontend *fe = (frontend *)data;
1075 text = midend_text_format(fe->me);
1078 write_clip(fe, text);
1084 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
1086 frontend *fe = (frontend *)data;
1089 msg = midend_solve(fe->me);
1092 error_box(fe->window, msg);
1095 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
1097 frontend *fe = (frontend *)data;
1099 midend_restart_game(fe->me);
1102 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
1104 frontend *fe = (frontend *)data;
1105 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
1109 if (!get_config(fe, which))
1112 midend_new_game(fe->me);
1113 get_size(fe, &x, &y);
1116 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1117 gtk_window_resize(GTK_WINDOW(fe->window), 1, 1);
1120 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
1122 frontend *fe = (frontend *)data;
1126 sprintf(titlebuf, "About %.200s", thegame.name);
1129 "from Simon Tatham's Portable Puzzle Collection\n\n"
1130 "%.500s", thegame.name, ver);
1132 message_box(fe->window, titlebuf, textbuf, TRUE);
1135 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
1136 char *text, int key)
1138 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
1139 gtk_container_add(cont, menuitem);
1140 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1141 GINT_TO_POINTER(key));
1142 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1143 GTK_SIGNAL_FUNC(menu_key_event), fe);
1144 gtk_widget_show(menuitem);
1148 static void add_menu_separator(GtkContainer *cont)
1150 GtkWidget *menuitem = gtk_menu_item_new();
1151 gtk_container_add(cont, menuitem);
1152 gtk_widget_show(menuitem);
1155 static frontend *new_window(char *game_id, char **error)
1159 GtkWidget *menubar, *menu, *menuitem;
1162 fe = snew(frontend);
1164 fe->timer_active = FALSE;
1167 fe->me = midend_new(fe, &thegame);
1170 *error = midend_game_id(fe->me, game_id);
1172 midend_free(fe->me);
1177 midend_new_game(fe->me);
1179 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1180 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
1182 gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
1184 gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
1186 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
1187 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
1188 gtk_widget_show(GTK_WIDGET(vbox));
1190 menubar = gtk_menu_bar_new();
1191 gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
1192 gtk_widget_show(menubar);
1194 menuitem = gtk_menu_item_new_with_label("Game");
1195 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1196 gtk_widget_show(menuitem);
1198 menu = gtk_menu_new();
1199 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1201 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
1203 menuitem = gtk_menu_item_new_with_label("Restart");
1204 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1205 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1206 GTK_SIGNAL_FUNC(menu_restart_event), fe);
1207 gtk_widget_show(menuitem);
1209 menuitem = gtk_menu_item_new_with_label("Specific...");
1210 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1211 GINT_TO_POINTER(CFG_DESC));
1212 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1213 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1214 GTK_SIGNAL_FUNC(menu_config_event), fe);
1215 gtk_widget_show(menuitem);
1217 menuitem = gtk_menu_item_new_with_label("Random Seed...");
1218 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1219 GINT_TO_POINTER(CFG_SEED));
1220 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1221 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1222 GTK_SIGNAL_FUNC(menu_config_event), fe);
1223 gtk_widget_show(menuitem);
1225 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
1229 menuitem = gtk_menu_item_new_with_label("Type");
1230 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1231 gtk_widget_show(menuitem);
1233 submenu = gtk_menu_new();
1234 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
1236 for (i = 0; i < n; i++) {
1238 game_params *params;
1240 midend_fetch_preset(fe->me, i, &name, ¶ms);
1242 menuitem = gtk_menu_item_new_with_label(name);
1243 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1244 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
1245 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1246 GTK_SIGNAL_FUNC(menu_preset_event), fe);
1247 gtk_widget_show(menuitem);
1250 if (thegame.can_configure) {
1251 menuitem = gtk_menu_item_new_with_label("Custom...");
1252 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1253 GPOINTER_TO_INT(CFG_SETTINGS));
1254 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1255 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1256 GTK_SIGNAL_FUNC(menu_config_event), fe);
1257 gtk_widget_show(menuitem);
1261 add_menu_separator(GTK_CONTAINER(menu));
1262 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
1263 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
1264 if (thegame.can_format_as_text) {
1265 add_menu_separator(GTK_CONTAINER(menu));
1266 menuitem = gtk_menu_item_new_with_label("Copy");
1267 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1268 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1269 GTK_SIGNAL_FUNC(menu_copy_event), fe);
1270 gtk_widget_show(menuitem);
1272 if (thegame.can_solve) {
1273 add_menu_separator(GTK_CONTAINER(menu));
1274 menuitem = gtk_menu_item_new_with_label("Solve");
1275 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1276 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1277 GTK_SIGNAL_FUNC(menu_solve_event), fe);
1278 gtk_widget_show(menuitem);
1280 add_menu_separator(GTK_CONTAINER(menu));
1281 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
1283 menuitem = gtk_menu_item_new_with_label("Help");
1284 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1285 gtk_widget_show(menuitem);
1287 menu = gtk_menu_new();
1288 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1290 menuitem = gtk_menu_item_new_with_label("About");
1291 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1292 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1293 GTK_SIGNAL_FUNC(menu_about_event), fe);
1294 gtk_widget_show(menuitem);
1301 fe->colmap = gdk_colormap_get_system();
1302 colours = midend_colours(fe->me, &ncolours);
1303 fe->ncolours = ncolours;
1304 fe->colours = snewn(ncolours, GdkColor);
1305 for (i = 0; i < ncolours; i++) {
1306 fe->colours[i].red = colours[i*3] * 0xFFFF;
1307 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
1308 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
1310 success = snewn(ncolours, gboolean);
1311 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
1312 FALSE, FALSE, success);
1313 for (i = 0; i < ncolours; i++) {
1315 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
1316 i, fe->colours[i].red >> 8,
1317 fe->colours[i].green >> 8,
1318 fe->colours[i].blue >> 8);
1322 if (midend_wants_statusbar(fe->me)) {
1323 GtkWidget *viewport;
1326 viewport = gtk_viewport_new(NULL, NULL);
1327 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
1328 fe->statusbar = gtk_statusbar_new();
1329 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
1330 gtk_widget_show(viewport);
1331 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
1332 gtk_widget_show(fe->statusbar);
1333 fe->statusctx = gtk_statusbar_get_context_id
1334 (GTK_STATUSBAR(fe->statusbar), "game");
1335 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
1337 gtk_widget_size_request(fe->statusbar, &req);
1339 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
1341 gtk_widget_set_usize(viewport, -1, req.height);
1343 fe->statusbar = NULL;
1345 fe->area = gtk_drawing_area_new();
1346 get_size(fe, &x, &y);
1347 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1351 gtk_box_pack_end(vbox, fe->area, TRUE, TRUE, 0);
1355 fe->nfonts = fe->fontsize = 0;
1357 fe->laststatus = NULL;
1359 fe->paste_data = NULL;
1360 fe->paste_data_len = 0;
1362 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
1363 GTK_SIGNAL_FUNC(destroy), fe);
1364 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
1365 GTK_SIGNAL_FUNC(key_event), fe);
1366 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
1367 GTK_SIGNAL_FUNC(button_event), fe);
1368 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
1369 GTK_SIGNAL_FUNC(button_event), fe);
1370 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
1371 GTK_SIGNAL_FUNC(motion_event), fe);
1372 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
1373 GTK_SIGNAL_FUNC(selection_get), fe);
1374 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
1375 GTK_SIGNAL_FUNC(selection_clear), fe);
1376 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
1377 GTK_SIGNAL_FUNC(expose_area), fe);
1378 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
1379 GTK_SIGNAL_FUNC(map_window), fe);
1380 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
1381 GTK_SIGNAL_FUNC(configure_area), fe);
1383 gtk_widget_add_events(GTK_WIDGET(fe->area),
1384 GDK_BUTTON_PRESS_MASK |
1385 GDK_BUTTON_RELEASE_MASK |
1386 GDK_BUTTON_MOTION_MASK);
1388 gtk_widget_show(fe->area);
1389 gtk_widget_show(fe->window);
1391 gdk_window_set_background(fe->area->window, &fe->colours[0]);
1392 gdk_window_set_background(fe->window->window, &fe->colours[0]);
1397 int main(int argc, char **argv)
1399 char *pname = argv[0];
1402 if (argc > 1 && !strcmp(argv[1], "--version")) {
1403 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
1409 * Special standalone mode for generating puzzle IDs on the
1410 * command line. Useful for generating puzzles to be printed
1411 * out and solved offline (for puzzles where that even makes
1412 * sense - Solo, for example, is a lot more pencil-and-paper
1413 * friendly than Net!)
1417 * <puzzle-name> --generate [<n> [<params>]]
1419 * <n>, if present, is the number of puzzle IDs to generate.
1420 * <params>, if present, is the same type of parameter string
1421 * you would pass to the puzzle when running it in GUI mode,
1422 * including optional extras such as the expansion factor in
1423 * Rectangles and the difficulty level in Solo.
1425 * If you specify <params>, you must also specify <n> (although
1426 * you may specify it to be 1). Sorry; that was the
1427 * simplest-to-parse command-line syntax I came up with.
1429 if (argc > 1 && !strcmp(argv[1], "--generate")) {
1431 char *params = NULL, *seed = NULL;
1441 par = thegame.default_params();
1443 if ( (seed = strchr(params, '#')) != NULL )
1445 thegame.decode_params(par, params);
1447 if ((error = thegame.validate_params(par)) != NULL) {
1448 fprintf(stderr, "%s: %s\n", pname, error);
1451 parstr = thegame.encode_params(par, FALSE);
1458 seedlen = strlen(seed);
1460 get_random_seed(&seeddata, &seedlen);
1462 rs = random_init(seeddata, seedlen);
1466 game_aux_info *aux = NULL;
1467 char *desc = thegame.new_desc(par, rs, &aux, FALSE);
1468 printf("%s:%s\n", parstr, desc);
1471 thegame.free_aux_info(aux);
1477 gtk_init(&argc, &argv);
1479 if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
1480 fprintf(stderr, "%s: %s\n", pname, error);