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);
342 blitter *blitter_new(int w, int h)
345 * We can't create the pixmap right now, because fe->window
346 * might not yet exist. So we just cache w and h and create it
347 * during the firs call to blitter_save.
349 blitter *bl = snew(blitter);
356 void blitter_free(blitter *bl)
359 gdk_pixmap_unref(bl->pixmap);
363 void blitter_save(frontend *fe, blitter *bl, int x, int y)
366 bl->pixmap = gdk_pixmap_new(fe->area->window, bl->w, bl->h, -1);
369 gdk_draw_pixmap(bl->pixmap,
370 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
372 x, y, 0, 0, bl->w, bl->h);
375 void blitter_load(frontend *fe, blitter *bl, int x, int y)
378 if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
382 gdk_draw_pixmap(fe->pixmap,
383 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
385 0, 0, x, y, bl->w, bl->h);
388 void draw_update(frontend *fe, int x, int y, int w, int h)
390 if (fe->bbox_l > x ) fe->bbox_l = x ;
391 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
392 if (fe->bbox_u > y ) fe->bbox_u = y ;
393 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
396 void end_draw(frontend *fe)
398 gdk_gc_unref(fe->gc);
401 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
402 gdk_draw_pixmap(fe->area->window,
403 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
405 fe->bbox_l, fe->bbox_u,
406 fe->ox + fe->bbox_l, fe->oy + fe->bbox_u,
407 fe->bbox_r - fe->bbox_l, fe->bbox_d - fe->bbox_u);
411 static void destroy(GtkWidget *widget, gpointer data)
413 frontend *fe = (frontend *)data;
414 deactivate_timer(fe);
418 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
420 frontend *fe = (frontend *)data;
422 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
423 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
428 if (event->keyval == GDK_Up)
429 keyval = shift | ctrl | CURSOR_UP;
430 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
431 keyval = MOD_NUM_KEYPAD | '8';
432 else if (event->keyval == GDK_Down)
433 keyval = shift | ctrl | CURSOR_DOWN;
434 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
435 keyval = MOD_NUM_KEYPAD | '2';
436 else if (event->keyval == GDK_Left)
437 keyval = shift | ctrl | CURSOR_LEFT;
438 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
439 keyval = MOD_NUM_KEYPAD | '4';
440 else if (event->keyval == GDK_Right)
441 keyval = shift | ctrl | CURSOR_RIGHT;
442 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
443 keyval = MOD_NUM_KEYPAD | '6';
444 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
445 keyval = MOD_NUM_KEYPAD | '7';
446 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
447 keyval = MOD_NUM_KEYPAD | '1';
448 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
449 keyval = MOD_NUM_KEYPAD | '9';
450 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
451 keyval = MOD_NUM_KEYPAD | '3';
452 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
453 keyval = MOD_NUM_KEYPAD | '0';
454 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
455 keyval = MOD_NUM_KEYPAD | '5';
456 else if (event->string[0] && !event->string[1])
457 keyval = (unsigned char)event->string[0];
462 !midend_process_key(fe->me, 0, 0, keyval))
463 gtk_widget_destroy(fe->window);
468 static gint button_event(GtkWidget *widget, GdkEventButton *event,
471 frontend *fe = (frontend *)data;
477 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
480 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
481 button = MIDDLE_BUTTON;
482 else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
483 button = RIGHT_BUTTON;
484 else if (event->button == 1)
485 button = LEFT_BUTTON;
487 return FALSE; /* don't even know what button! */
489 if (event->type == GDK_BUTTON_RELEASE)
490 button += LEFT_RELEASE - LEFT_BUTTON;
492 if (!midend_process_key(fe->me, event->x - fe->ox,
493 event->y - fe->oy, button))
494 gtk_widget_destroy(fe->window);
499 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
502 frontend *fe = (frontend *)data;
508 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
509 button = MIDDLE_DRAG;
510 else if (event->state & GDK_BUTTON1_MASK)
512 else if (event->state & GDK_BUTTON3_MASK)
515 return FALSE; /* don't even know what button! */
517 if (!midend_process_key(fe->me, event->x - fe->ox,
518 event->y - fe->oy, button))
519 gtk_widget_destroy(fe->window);
524 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
527 frontend *fe = (frontend *)data;
530 gdk_draw_pixmap(widget->window,
531 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
533 event->area.x - fe->ox, event->area.y - fe->oy,
534 event->area.x, event->area.y,
535 event->area.width, event->area.height);
540 static gint map_window(GtkWidget *widget, GdkEvent *event,
543 frontend *fe = (frontend *)data;
546 * Apparently we need to do this because otherwise the status
547 * bar will fail to update immediately. Annoying, but there we
550 gtk_widget_queue_draw(fe->window);
555 static gint configure_area(GtkWidget *widget,
556 GdkEventConfigure *event, gpointer data)
558 frontend *fe = (frontend *)data;
563 gdk_pixmap_unref(fe->pixmap);
565 x = fe->w = event->width;
566 y = fe->h = event->height;
567 midend_size(fe->me, &x, &y, TRUE);
570 fe->ox = (fe->w - fe->pw) / 2;
571 fe->oy = (fe->h - fe->ph) / 2;
573 fe->pixmap = gdk_pixmap_new(widget->window, fe->pw, fe->ph, -1);
575 gc = gdk_gc_new(fe->area->window);
576 gdk_gc_set_foreground(gc, &fe->colours[0]);
577 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->pw, fe->ph);
580 midend_force_redraw(fe->me);
585 static gint timer_func(gpointer data)
587 frontend *fe = (frontend *)data;
589 if (fe->timer_active) {
592 gettimeofday(&now, NULL);
593 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
594 (now.tv_sec - fe->last_time.tv_sec));
595 midend_timer(fe->me, elapsed); /* may clear timer_active */
599 return fe->timer_active;
602 void deactivate_timer(frontend *fe)
604 if (fe->timer_active)
605 gtk_timeout_remove(fe->timer_id);
606 fe->timer_active = FALSE;
609 void activate_timer(frontend *fe)
611 if (!fe->timer_active) {
612 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
613 gettimeofday(&fe->last_time, NULL);
615 fe->timer_active = TRUE;
618 static void window_destroy(GtkWidget *widget, gpointer data)
623 static void errmsg_button_clicked(GtkButton *button, gpointer data)
625 gtk_widget_destroy(GTK_WIDGET(data));
628 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
630 GtkObject *cancelbutton = GTK_OBJECT(data);
633 * `Escape' effectively clicks the cancel button
635 if (event->keyval == GDK_Escape) {
636 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
643 void message_box(GtkWidget *parent, char *title, char *msg, int centre)
645 GtkWidget *window, *hbox, *text, *ok;
647 window = gtk_dialog_new();
648 text = gtk_label_new(msg);
649 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
650 hbox = gtk_hbox_new(FALSE, 0);
651 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
652 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
653 hbox, FALSE, FALSE, 20);
654 gtk_widget_show(text);
655 gtk_widget_show(hbox);
656 gtk_window_set_title(GTK_WINDOW(window), title);
657 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
658 ok = gtk_button_new_with_label("OK");
659 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
660 ok, FALSE, FALSE, 0);
662 GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
663 gtk_window_set_default(GTK_WINDOW(window), ok);
664 gtk_signal_connect(GTK_OBJECT(ok), "clicked",
665 GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
666 gtk_signal_connect(GTK_OBJECT(window), "destroy",
667 GTK_SIGNAL_FUNC(window_destroy), NULL);
668 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
669 GTK_SIGNAL_FUNC(win_key_press), ok);
670 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
671 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
672 /* set_transient_window_pos(parent, window); */
673 gtk_widget_show(window);
677 void error_box(GtkWidget *parent, char *msg)
679 message_box(parent, "Error", msg, FALSE);
682 static void config_ok_button_clicked(GtkButton *button, gpointer data)
684 frontend *fe = (frontend *)data;
687 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
690 error_box(fe->cfgbox, err);
693 gtk_widget_destroy(fe->cfgbox);
697 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
699 frontend *fe = (frontend *)data;
701 gtk_widget_destroy(fe->cfgbox);
704 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
707 * GtkEntry has a nasty habit of eating the Return key, which
708 * is unhelpful since it doesn't actually _do_ anything with it
709 * (it calls gtk_widget_activate, but our edit boxes never need
710 * activating). So I catch Return before GtkEntry sees it, and
711 * pass it straight on to the parent widget. Effect: hitting
712 * Return in an edit box will now activate the default button
713 * in the dialog just like it will everywhere else.
715 if (event->keyval == GDK_Return && widget->parent != NULL) {
717 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
718 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
725 static void editbox_changed(GtkEditable *ed, gpointer data)
727 config_item *i = (config_item *)data;
730 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
733 static void button_toggled(GtkToggleButton *tb, gpointer data)
735 config_item *i = (config_item *)data;
737 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
740 static void droplist_sel(GtkMenuItem *item, gpointer data)
742 config_item *i = (config_item *)data;
744 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
748 static int get_config(frontend *fe, int which)
750 GtkWidget *w, *table, *cancel;
755 fe->cfg = midend_get_config(fe->me, which, &title);
756 fe->cfg_which = which;
759 fe->cfgbox = gtk_dialog_new();
760 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
763 w = gtk_button_new_with_label("OK");
764 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
767 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
768 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
769 gtk_signal_connect(GTK_OBJECT(w), "clicked",
770 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
772 w = gtk_button_new_with_label("Cancel");
773 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
776 gtk_signal_connect(GTK_OBJECT(w), "clicked",
777 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
780 table = gtk_table_new(1, 2, FALSE);
782 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
783 table, FALSE, FALSE, 0);
784 gtk_widget_show(table);
786 for (i = fe->cfg; i->type != C_END; i++) {
787 gtk_table_resize(GTK_TABLE(table), y+1, 2);
792 * Edit box with a label beside it.
795 w = gtk_label_new(i->name);
796 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
797 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
798 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
799 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
804 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
805 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
806 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
808 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
809 gtk_signal_connect(GTK_OBJECT(w), "changed",
810 GTK_SIGNAL_FUNC(editbox_changed), i);
811 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
812 GTK_SIGNAL_FUNC(editbox_key), NULL);
821 w = gtk_check_button_new_with_label(i->name);
822 gtk_signal_connect(GTK_OBJECT(w), "toggled",
823 GTK_SIGNAL_FUNC(button_toggled), i);
824 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
825 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
826 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
828 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
834 * Drop-down list (GtkOptionMenu).
837 w = gtk_label_new(i->name);
838 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
839 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
840 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
841 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
845 w = gtk_option_menu_new();
846 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
847 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
848 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
856 GtkWidget *menu = gtk_menu_new();
858 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
866 while (*q && *q != c)
869 name = snewn(q-p+1, char);
870 strncpy(name, p, q-p);
873 if (*q) q++; /* eat delimiter */
875 menuitem = gtk_menu_item_new_with_label(name);
876 gtk_container_add(GTK_CONTAINER(menu), menuitem);
877 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
878 GINT_TO_POINTER(val));
879 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
880 GTK_SIGNAL_FUNC(droplist_sel), i);
881 gtk_widget_show(menuitem);
888 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
897 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
898 GTK_SIGNAL_FUNC(window_destroy), NULL);
899 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
900 GTK_SIGNAL_FUNC(win_key_press), cancel);
901 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
902 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
903 GTK_WINDOW(fe->window));
904 /* set_transient_window_pos(fe->window, fe->cfgbox); */
905 gtk_widget_show(fe->cfgbox);
913 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
915 frontend *fe = (frontend *)data;
916 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
918 if (!midend_process_key(fe->me, 0, 0, key))
919 gtk_widget_destroy(fe->window);
922 static void get_size(frontend *fe, int *px, int *py)
927 * Currently I don't want to make the GTK port scale large
928 * puzzles to fit on the screen. This is because X does permit
929 * extremely large windows and many window managers provide a
930 * means of navigating round them, and the users I consulted
931 * before deciding said that they'd rather have enormous puzzle
932 * windows spanning multiple screen pages than have them
933 * shrunk. I could change my mind later or introduce
934 * configurability; this would be the place to do so, by
935 * replacing the initial values of x and y with the screen
940 midend_size(fe->me, &x, &y, FALSE);
945 #if !GTK_CHECK_VERSION(2,0,0)
946 #define gtk_window_resize(win, x, y) \
947 gdk_window_resize(GTK_WIDGET(win)->window, x, y)
950 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
952 frontend *fe = (frontend *)data;
953 game_params *params =
954 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
957 midend_set_params(fe->me, params);
958 midend_new_game(fe->me);
959 get_size(fe, &x, &y);
962 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
963 gtk_window_resize(GTK_WINDOW(fe->window), 1, 1);
966 GdkAtom compound_text_atom, utf8_string_atom;
967 int paste_initialised = FALSE;
971 unsigned char empty[] = { 0 };
973 if (paste_initialised)
976 if (!compound_text_atom)
977 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
978 if (!utf8_string_atom)
979 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
982 * Ensure that all the cut buffers exist - according to the
983 * ICCCM, we must do this before we start using cut buffers.
985 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
986 XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, empty, 0);
987 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
988 XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, empty, 0);
989 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
990 XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, empty, 0);
991 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
992 XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, empty, 0);
993 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
994 XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, empty, 0);
995 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
996 XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, empty, 0);
997 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
998 XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, empty, 0);
999 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
1000 XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, empty, 0);
1003 /* Store data in a cut-buffer. */
1004 void store_cutbuffer(char *ptr, int len)
1006 /* ICCCM says we must rotate the buffers before storing to buffer 0. */
1007 XRotateBuffers(GDK_DISPLAY(), 1);
1008 XStoreBytes(GDK_DISPLAY(), ptr, len);
1011 void write_clip(frontend *fe, char *data)
1016 sfree(fe->paste_data);
1019 * For this simple application we can safely assume that the
1020 * data passed to this function is pure ASCII, which means we
1021 * can return precisely the same stuff for types STRING,
1022 * COMPOUND_TEXT or UTF8_STRING.
1025 fe->paste_data = data;
1026 fe->paste_data_len = strlen(data);
1028 store_cutbuffer(fe->paste_data, fe->paste_data_len);
1030 if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
1032 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
1033 GDK_SELECTION_TYPE_STRING, 1);
1034 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
1035 compound_text_atom, 1);
1036 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
1037 utf8_string_atom, 1);
1041 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
1042 guint info, guint time_stamp, gpointer data)
1044 frontend *fe = (frontend *)data;
1045 gtk_selection_data_set(seldata, seldata->target, 8,
1046 fe->paste_data, fe->paste_data_len);
1049 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
1052 frontend *fe = (frontend *)data;
1055 sfree(fe->paste_data);
1056 fe->paste_data = NULL;
1057 fe->paste_data_len = 0;
1061 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
1063 frontend *fe = (frontend *)data;
1066 text = midend_text_format(fe->me);
1069 write_clip(fe, text);
1075 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
1077 frontend *fe = (frontend *)data;
1080 msg = midend_solve(fe->me);
1083 error_box(fe->window, msg);
1086 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
1088 frontend *fe = (frontend *)data;
1090 midend_restart_game(fe->me);
1093 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
1095 frontend *fe = (frontend *)data;
1096 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
1100 if (!get_config(fe, which))
1103 midend_new_game(fe->me);
1104 get_size(fe, &x, &y);
1107 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1108 gtk_window_resize(GTK_WINDOW(fe->window), 1, 1);
1111 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
1113 frontend *fe = (frontend *)data;
1117 sprintf(titlebuf, "About %.200s", thegame.name);
1120 "from Simon Tatham's Portable Puzzle Collection\n\n"
1121 "%.500s", thegame.name, ver);
1123 message_box(fe->window, titlebuf, textbuf, TRUE);
1126 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
1127 char *text, int key)
1129 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
1130 gtk_container_add(cont, menuitem);
1131 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1132 GINT_TO_POINTER(key));
1133 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1134 GTK_SIGNAL_FUNC(menu_key_event), fe);
1135 gtk_widget_show(menuitem);
1139 static void add_menu_separator(GtkContainer *cont)
1141 GtkWidget *menuitem = gtk_menu_item_new();
1142 gtk_container_add(cont, menuitem);
1143 gtk_widget_show(menuitem);
1146 static frontend *new_window(char *game_id, char **error)
1150 GtkWidget *menubar, *menu, *menuitem;
1153 fe = snew(frontend);
1155 fe->timer_active = FALSE;
1158 fe->me = midend_new(fe, &thegame);
1161 *error = midend_game_id(fe->me, game_id);
1163 midend_free(fe->me);
1168 midend_new_game(fe->me);
1170 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1171 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
1173 gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
1175 gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
1177 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
1178 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
1179 gtk_widget_show(GTK_WIDGET(vbox));
1181 menubar = gtk_menu_bar_new();
1182 gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
1183 gtk_widget_show(menubar);
1185 menuitem = gtk_menu_item_new_with_label("Game");
1186 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1187 gtk_widget_show(menuitem);
1189 menu = gtk_menu_new();
1190 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1192 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
1194 menuitem = gtk_menu_item_new_with_label("Restart");
1195 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1196 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1197 GTK_SIGNAL_FUNC(menu_restart_event), fe);
1198 gtk_widget_show(menuitem);
1200 menuitem = gtk_menu_item_new_with_label("Specific...");
1201 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1202 GINT_TO_POINTER(CFG_DESC));
1203 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1204 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1205 GTK_SIGNAL_FUNC(menu_config_event), fe);
1206 gtk_widget_show(menuitem);
1208 menuitem = gtk_menu_item_new_with_label("Random Seed...");
1209 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1210 GINT_TO_POINTER(CFG_SEED));
1211 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1212 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1213 GTK_SIGNAL_FUNC(menu_config_event), fe);
1214 gtk_widget_show(menuitem);
1216 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
1220 menuitem = gtk_menu_item_new_with_label("Type");
1221 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1222 gtk_widget_show(menuitem);
1224 submenu = gtk_menu_new();
1225 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
1227 for (i = 0; i < n; i++) {
1229 game_params *params;
1231 midend_fetch_preset(fe->me, i, &name, ¶ms);
1233 menuitem = gtk_menu_item_new_with_label(name);
1234 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1235 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
1236 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1237 GTK_SIGNAL_FUNC(menu_preset_event), fe);
1238 gtk_widget_show(menuitem);
1241 if (thegame.can_configure) {
1242 menuitem = gtk_menu_item_new_with_label("Custom...");
1243 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1244 GPOINTER_TO_INT(CFG_SETTINGS));
1245 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1246 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1247 GTK_SIGNAL_FUNC(menu_config_event), fe);
1248 gtk_widget_show(menuitem);
1252 add_menu_separator(GTK_CONTAINER(menu));
1253 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
1254 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
1255 if (thegame.can_format_as_text) {
1256 add_menu_separator(GTK_CONTAINER(menu));
1257 menuitem = gtk_menu_item_new_with_label("Copy");
1258 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1259 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1260 GTK_SIGNAL_FUNC(menu_copy_event), fe);
1261 gtk_widget_show(menuitem);
1263 if (thegame.can_solve) {
1264 add_menu_separator(GTK_CONTAINER(menu));
1265 menuitem = gtk_menu_item_new_with_label("Solve");
1266 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1267 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1268 GTK_SIGNAL_FUNC(menu_solve_event), fe);
1269 gtk_widget_show(menuitem);
1271 add_menu_separator(GTK_CONTAINER(menu));
1272 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
1274 menuitem = gtk_menu_item_new_with_label("Help");
1275 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1276 gtk_widget_show(menuitem);
1278 menu = gtk_menu_new();
1279 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1281 menuitem = gtk_menu_item_new_with_label("About");
1282 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1283 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1284 GTK_SIGNAL_FUNC(menu_about_event), fe);
1285 gtk_widget_show(menuitem);
1292 fe->colmap = gdk_colormap_get_system();
1293 colours = midend_colours(fe->me, &ncolours);
1294 fe->ncolours = ncolours;
1295 fe->colours = snewn(ncolours, GdkColor);
1296 for (i = 0; i < ncolours; i++) {
1297 fe->colours[i].red = colours[i*3] * 0xFFFF;
1298 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
1299 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
1301 success = snewn(ncolours, gboolean);
1302 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
1303 FALSE, FALSE, success);
1304 for (i = 0; i < ncolours; i++) {
1306 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
1307 i, fe->colours[i].red >> 8,
1308 fe->colours[i].green >> 8,
1309 fe->colours[i].blue >> 8);
1313 if (midend_wants_statusbar(fe->me)) {
1314 GtkWidget *viewport;
1317 viewport = gtk_viewport_new(NULL, NULL);
1318 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
1319 fe->statusbar = gtk_statusbar_new();
1320 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
1321 gtk_widget_show(viewport);
1322 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
1323 gtk_widget_show(fe->statusbar);
1324 fe->statusctx = gtk_statusbar_get_context_id
1325 (GTK_STATUSBAR(fe->statusbar), "game");
1326 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
1328 gtk_widget_size_request(fe->statusbar, &req);
1330 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
1332 gtk_widget_set_usize(viewport, -1, req.height);
1334 fe->statusbar = NULL;
1336 fe->area = gtk_drawing_area_new();
1337 get_size(fe, &x, &y);
1338 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1342 gtk_box_pack_end(vbox, fe->area, TRUE, TRUE, 0);
1346 fe->nfonts = fe->fontsize = 0;
1348 fe->laststatus = NULL;
1350 fe->paste_data = NULL;
1351 fe->paste_data_len = 0;
1353 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
1354 GTK_SIGNAL_FUNC(destroy), fe);
1355 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
1356 GTK_SIGNAL_FUNC(key_event), fe);
1357 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
1358 GTK_SIGNAL_FUNC(button_event), fe);
1359 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
1360 GTK_SIGNAL_FUNC(button_event), fe);
1361 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
1362 GTK_SIGNAL_FUNC(motion_event), fe);
1363 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
1364 GTK_SIGNAL_FUNC(selection_get), fe);
1365 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
1366 GTK_SIGNAL_FUNC(selection_clear), fe);
1367 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
1368 GTK_SIGNAL_FUNC(expose_area), fe);
1369 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
1370 GTK_SIGNAL_FUNC(map_window), fe);
1371 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
1372 GTK_SIGNAL_FUNC(configure_area), fe);
1374 gtk_widget_add_events(GTK_WIDGET(fe->area),
1375 GDK_BUTTON_PRESS_MASK |
1376 GDK_BUTTON_RELEASE_MASK |
1377 GDK_BUTTON_MOTION_MASK);
1379 gtk_widget_show(fe->area);
1380 gtk_widget_show(fe->window);
1382 gdk_window_set_background(fe->area->window, &fe->colours[0]);
1383 gdk_window_set_background(fe->window->window, &fe->colours[0]);
1388 int main(int argc, char **argv)
1390 char *pname = argv[0];
1393 if (argc > 1 && !strcmp(argv[1], "--version")) {
1394 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
1400 * Special standalone mode for generating puzzle IDs on the
1401 * command line. Useful for generating puzzles to be printed
1402 * out and solved offline (for puzzles where that even makes
1403 * sense - Solo, for example, is a lot more pencil-and-paper
1404 * friendly than Net!)
1408 * <puzzle-name> --generate [<n> [<params>]]
1410 * <n>, if present, is the number of puzzle IDs to generate.
1411 * <params>, if present, is the same type of parameter string
1412 * you would pass to the puzzle when running it in GUI mode,
1413 * including optional extras such as the expansion factor in
1414 * Rectangles and the difficulty level in Solo.
1416 * If you specify <params>, you must also specify <n> (although
1417 * you may specify it to be 1). Sorry; that was the
1418 * simplest-to-parse command-line syntax I came up with.
1420 if (argc > 1 && !strcmp(argv[1], "--generate")) {
1422 char *params = NULL, *seed = NULL;
1432 par = thegame.default_params();
1434 if ( (seed = strchr(params, '#')) != NULL )
1436 thegame.decode_params(par, params);
1438 if ((error = thegame.validate_params(par)) != NULL) {
1439 fprintf(stderr, "%s: %s\n", pname, error);
1442 parstr = thegame.encode_params(par, FALSE);
1449 seedlen = strlen(seed);
1451 get_random_seed(&seeddata, &seedlen);
1453 rs = random_init(seeddata, seedlen);
1457 game_aux_info *aux = NULL;
1458 char *desc = thegame.new_desc(par, rs, &aux, FALSE);
1459 printf("%s:%s\n", parstr, desc);
1462 thegame.free_aux_info(aux);
1468 gtk_init(&argc, &argv);
1470 if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
1471 fprintf(stderr, "%s: %s\n", pname, error);