2 * gtk.c: GTK front end for my puzzle collection.
15 #include <gdk/gdkkeysyms.h>
19 #include <X11/Xutil.h>
20 #include <X11/Xatom.h>
24 /* ----------------------------------------------------------------------
25 * Error reporting functions used elsewhere.
28 void fatal(char *fmt, ...)
32 fprintf(stderr, "fatal error: ");
35 vfprintf(stderr, fmt, ap);
38 fprintf(stderr, "\n");
42 /* ----------------------------------------------------------------------
43 * GTK front end to puzzles.
53 * This structure holds all the data relevant to a single window.
54 * In principle this would allow us to open multiple independent
55 * puzzle windows, although I can't currently see any real point in
56 * doing so. I'm just coding cleanly because there's no
57 * particularly good reason not to.
71 int bbox_l, bbox_r, bbox_u, bbox_d;
72 int timer_active, timer_id;
73 struct timeval last_time;
77 int cfg_which, cfgret;
83 void get_random_seed(void **randseed, int *randseedsize)
85 struct timeval *tvp = snew(struct timeval);
86 gettimeofday(tvp, NULL);
87 *randseed = (void *)tvp;
88 *randseedsize = sizeof(struct timeval);
91 void frontend_default_colour(frontend *fe, float *output)
93 GdkColor col = fe->window->style->bg[GTK_STATE_NORMAL];
94 output[0] = col.red / 65535.0;
95 output[1] = col.green / 65535.0;
96 output[2] = col.blue / 65535.0;
99 void status_bar(frontend *fe, char *text)
103 assert(fe->statusbar);
105 rewritten = midend_rewrite_statusbar(fe->me, text);
106 gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
107 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, rewritten);
111 void start_draw(frontend *fe)
113 fe->gc = gdk_gc_new(fe->area->window);
120 void clip(frontend *fe, int x, int y, int w, int h)
129 gdk_gc_set_clip_rectangle(fe->gc, &rect);
132 void unclip(frontend *fe)
141 gdk_gc_set_clip_rectangle(fe->gc, &rect);
144 void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
145 int align, int colour, char *text)
150 * Find or create the font.
152 for (i = 0; i < fe->nfonts; i++)
153 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
156 if (i == fe->nfonts) {
157 if (fe->fontsize <= fe->nfonts) {
158 fe->fontsize = fe->nfonts + 10;
159 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
164 fe->fonts[i].type = fonttype;
165 fe->fonts[i].size = fontsize;
167 #if GTK_CHECK_VERSION(2,0,0)
169 * Use Pango to find the closest match to the requested
173 PangoFontDescription *fd;
175 fd = pango_font_description_new();
176 /* `Monospace' and `Sans' are meta-families guaranteed to exist */
177 pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
178 "Monospace" : "Sans");
179 pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
181 * I found some online Pango documentation which
182 * described a function called
183 * pango_font_description_set_absolute_size(), which is
184 * _exactly_ what I want here. Unfortunately, none of
185 * my local Pango installations have it (presumably
186 * they're too old), so I'm going to have to hack round
187 * it by figuring out the point size myself. This
188 * limits me to X and probably also breaks in later
189 * Pango installations, so ideally I should add another
190 * CHECK_VERSION type ifdef and use set_absolute_size
191 * where available. All very annoying.
193 #ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
194 pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
197 Display *d = GDK_DISPLAY();
198 int s = DefaultScreen(d);
200 (PANGO_SCALE * 72.27 / 25.4) *
201 ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
202 pango_font_description_set_size(fd, resolution * fontsize);
205 fe->fonts[i].font = gdk_font_from_description(fd);
206 pango_font_description_free(fd);
209 if (!fe->fonts[i].font)
212 * In GTK 1.2, I don't know of any plausible way to
213 * pick a suitable font, so I'm just going to be
216 * This is also fallback code called if the Pango
217 * approach fails to find an appropriate font.
219 fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
220 "fixed" : "variable");
224 * Find string dimensions and process alignment.
227 int lb, rb, wid, asc, desc;
230 * Measure vertical string extents with respect to the same
233 gdk_string_extents(fe->fonts[i].font,
234 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
235 &lb, &rb, &wid, &asc, &desc);
236 if (align & ALIGN_VCENTRE)
237 y += asc - (asc+desc)/2;
240 * ... but horizontal extents with respect to the provided
241 * string. This means that multiple pieces of text centred
242 * on the same y-coordinate don't have different baselines.
244 gdk_string_extents(fe->fonts[i].font, text,
245 &lb, &rb, &wid, &asc, &desc);
247 if (align & ALIGN_HCENTRE)
249 else if (align & ALIGN_HRIGHT)
255 * Set colour and actually draw text.
257 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
258 gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
261 void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
263 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
264 gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
267 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
269 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
270 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
273 void draw_polygon(frontend *fe, int *coords, int npoints,
274 int fill, int colour)
276 GdkPoint *points = snewn(npoints, GdkPoint);
279 for (i = 0; i < npoints; i++) {
280 points[i].x = coords[i*2];
281 points[i].y = coords[i*2+1];
284 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
285 gdk_draw_polygon(fe->pixmap, fe->gc, fill, points, npoints);
290 void draw_update(frontend *fe, int x, int y, int w, int h)
292 if (fe->bbox_l > x ) fe->bbox_l = x ;
293 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
294 if (fe->bbox_u > y ) fe->bbox_u = y ;
295 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
298 void end_draw(frontend *fe)
300 gdk_gc_unref(fe->gc);
303 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
304 gdk_draw_pixmap(fe->area->window,
305 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
307 fe->bbox_l, fe->bbox_u,
308 fe->bbox_l, fe->bbox_u,
309 fe->bbox_r - fe->bbox_l, fe->bbox_d - fe->bbox_u);
313 static void destroy(GtkWidget *widget, gpointer data)
315 frontend *fe = (frontend *)data;
316 deactivate_timer(fe);
320 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
322 frontend *fe = (frontend *)data;
324 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
325 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
330 if (event->keyval == GDK_Up)
331 keyval = shift | ctrl | CURSOR_UP;
332 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
333 keyval = MOD_NUM_KEYPAD | '8';
334 else if (event->keyval == GDK_Down)
335 keyval = shift | ctrl | CURSOR_DOWN;
336 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
337 keyval = MOD_NUM_KEYPAD | '2';
338 else if (event->keyval == GDK_Left)
339 keyval = shift | ctrl | CURSOR_LEFT;
340 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
341 keyval = MOD_NUM_KEYPAD | '4';
342 else if (event->keyval == GDK_Right)
343 keyval = shift | ctrl | CURSOR_RIGHT;
344 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
345 keyval = MOD_NUM_KEYPAD | '6';
346 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
347 keyval = MOD_NUM_KEYPAD | '7';
348 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
349 keyval = MOD_NUM_KEYPAD | '1';
350 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
351 keyval = MOD_NUM_KEYPAD | '9';
352 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
353 keyval = MOD_NUM_KEYPAD | '3';
354 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
355 keyval = MOD_NUM_KEYPAD | '0';
356 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
357 keyval = MOD_NUM_KEYPAD | '5';
358 else if (event->string[0] && !event->string[1])
359 keyval = (unsigned char)event->string[0];
364 !midend_process_key(fe->me, 0, 0, keyval))
365 gtk_widget_destroy(fe->window);
370 static gint button_event(GtkWidget *widget, GdkEventButton *event,
373 frontend *fe = (frontend *)data;
379 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
382 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
383 button = MIDDLE_BUTTON;
384 else if (event->button == 1)
385 button = LEFT_BUTTON;
386 else if (event->button == 3)
387 button = RIGHT_BUTTON;
389 return FALSE; /* don't even know what button! */
391 if (event->type == GDK_BUTTON_RELEASE)
392 button += LEFT_RELEASE - LEFT_BUTTON;
394 if (!midend_process_key(fe->me, event->x, event->y, button))
395 gtk_widget_destroy(fe->window);
400 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
403 frontend *fe = (frontend *)data;
409 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
410 button = MIDDLE_DRAG;
411 else if (event->state & GDK_BUTTON1_MASK)
413 else if (event->state & GDK_BUTTON3_MASK)
416 return FALSE; /* don't even know what button! */
418 if (!midend_process_key(fe->me, event->x, event->y, button))
419 gtk_widget_destroy(fe->window);
424 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
427 frontend *fe = (frontend *)data;
430 gdk_draw_pixmap(widget->window,
431 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
433 event->area.x, event->area.y,
434 event->area.x, event->area.y,
435 event->area.width, event->area.height);
440 static gint map_window(GtkWidget *widget, GdkEvent *event,
443 frontend *fe = (frontend *)data;
446 * Apparently we need to do this because otherwise the status
447 * bar will fail to update immediately. Annoying, but there we
450 gtk_widget_queue_draw(fe->window);
455 static gint configure_area(GtkWidget *widget,
456 GdkEventConfigure *event, gpointer data)
458 frontend *fe = (frontend *)data;
462 gdk_pixmap_unref(fe->pixmap);
464 fe->pixmap = gdk_pixmap_new(widget->window, fe->w, fe->h, -1);
466 gc = gdk_gc_new(fe->area->window);
467 gdk_gc_set_foreground(gc, &fe->colours[0]);
468 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->w, fe->h);
471 midend_force_redraw(fe->me);
476 static gint timer_func(gpointer data)
478 frontend *fe = (frontend *)data;
480 if (fe->timer_active) {
483 gettimeofday(&now, NULL);
484 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
485 (now.tv_sec - fe->last_time.tv_sec));
486 midend_timer(fe->me, elapsed); /* may clear timer_active */
490 return fe->timer_active;
493 void deactivate_timer(frontend *fe)
495 if (fe->timer_active)
496 gtk_timeout_remove(fe->timer_id);
497 fe->timer_active = FALSE;
500 void activate_timer(frontend *fe)
502 if (!fe->timer_active) {
503 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
504 gettimeofday(&fe->last_time, NULL);
506 fe->timer_active = TRUE;
509 static void window_destroy(GtkWidget *widget, gpointer data)
514 static void errmsg_button_clicked(GtkButton *button, gpointer data)
516 gtk_widget_destroy(GTK_WIDGET(data));
519 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
521 GtkObject *cancelbutton = GTK_OBJECT(data);
524 * `Escape' effectively clicks the cancel button
526 if (event->keyval == GDK_Escape) {
527 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
534 void message_box(GtkWidget *parent, char *title, char *msg, int centre)
536 GtkWidget *window, *hbox, *text, *ok;
538 window = gtk_dialog_new();
539 text = gtk_label_new(msg);
540 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
541 hbox = gtk_hbox_new(FALSE, 0);
542 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
543 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
544 hbox, FALSE, FALSE, 20);
545 gtk_widget_show(text);
546 gtk_widget_show(hbox);
547 gtk_window_set_title(GTK_WINDOW(window), title);
548 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
549 ok = gtk_button_new_with_label("OK");
550 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
551 ok, FALSE, FALSE, 0);
553 GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
554 gtk_window_set_default(GTK_WINDOW(window), ok);
555 gtk_signal_connect(GTK_OBJECT(ok), "clicked",
556 GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
557 gtk_signal_connect(GTK_OBJECT(window), "destroy",
558 GTK_SIGNAL_FUNC(window_destroy), NULL);
559 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
560 GTK_SIGNAL_FUNC(win_key_press), ok);
561 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
562 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
563 //set_transient_window_pos(parent, window);
564 gtk_widget_show(window);
568 void error_box(GtkWidget *parent, char *msg)
570 message_box(parent, "Error", msg, FALSE);
573 static void config_ok_button_clicked(GtkButton *button, gpointer data)
575 frontend *fe = (frontend *)data;
578 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
581 error_box(fe->cfgbox, err);
584 gtk_widget_destroy(fe->cfgbox);
588 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
590 frontend *fe = (frontend *)data;
592 gtk_widget_destroy(fe->cfgbox);
595 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
598 * GtkEntry has a nasty habit of eating the Return key, which
599 * is unhelpful since it doesn't actually _do_ anything with it
600 * (it calls gtk_widget_activate, but our edit boxes never need
601 * activating). So I catch Return before GtkEntry sees it, and
602 * pass it straight on to the parent widget. Effect: hitting
603 * Return in an edit box will now activate the default button
604 * in the dialog just like it will everywhere else.
606 if (event->keyval == GDK_Return && widget->parent != NULL) {
608 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
609 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
616 static void editbox_changed(GtkEditable *ed, gpointer data)
618 config_item *i = (config_item *)data;
621 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
624 static void button_toggled(GtkToggleButton *tb, gpointer data)
626 config_item *i = (config_item *)data;
628 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
631 static void droplist_sel(GtkMenuItem *item, gpointer data)
633 config_item *i = (config_item *)data;
635 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
639 static int get_config(frontend *fe, int which)
641 GtkWidget *w, *table, *cancel;
646 fe->cfg = midend_get_config(fe->me, which, &title);
647 fe->cfg_which = which;
650 fe->cfgbox = gtk_dialog_new();
651 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
654 w = gtk_button_new_with_label("OK");
655 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
658 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
659 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
660 gtk_signal_connect(GTK_OBJECT(w), "clicked",
661 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
663 w = gtk_button_new_with_label("Cancel");
664 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
667 gtk_signal_connect(GTK_OBJECT(w), "clicked",
668 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
671 table = gtk_table_new(1, 2, FALSE);
673 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
674 table, FALSE, FALSE, 0);
675 gtk_widget_show(table);
677 for (i = fe->cfg; i->type != C_END; i++) {
678 gtk_table_resize(GTK_TABLE(table), y+1, 2);
683 * Edit box with a label beside it.
686 w = gtk_label_new(i->name);
687 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
688 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
689 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
690 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
695 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
696 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
697 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
699 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
700 gtk_signal_connect(GTK_OBJECT(w), "changed",
701 GTK_SIGNAL_FUNC(editbox_changed), i);
702 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
703 GTK_SIGNAL_FUNC(editbox_key), NULL);
712 w = gtk_check_button_new_with_label(i->name);
713 gtk_signal_connect(GTK_OBJECT(w), "toggled",
714 GTK_SIGNAL_FUNC(button_toggled), i);
715 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
716 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
717 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
719 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
725 * Drop-down list (GtkOptionMenu).
728 w = gtk_label_new(i->name);
729 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
730 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
731 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
732 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
736 w = gtk_option_menu_new();
737 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
738 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
739 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
747 GtkWidget *menu = gtk_menu_new();
749 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
757 while (*q && *q != c)
760 name = snewn(q-p+1, char);
761 strncpy(name, p, q-p);
764 if (*q) q++; /* eat delimiter */
766 menuitem = gtk_menu_item_new_with_label(name);
767 gtk_container_add(GTK_CONTAINER(menu), menuitem);
768 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
769 GINT_TO_POINTER(val));
770 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
771 GTK_SIGNAL_FUNC(droplist_sel), i);
772 gtk_widget_show(menuitem);
779 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
788 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
789 GTK_SIGNAL_FUNC(window_destroy), NULL);
790 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
791 GTK_SIGNAL_FUNC(win_key_press), cancel);
792 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
793 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
794 GTK_WINDOW(fe->window));
795 //set_transient_window_pos(fe->window, fe->cfgbox);
796 gtk_widget_show(fe->cfgbox);
804 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
806 frontend *fe = (frontend *)data;
807 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
809 if (!midend_process_key(fe->me, 0, 0, key))
810 gtk_widget_destroy(fe->window);
813 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
815 frontend *fe = (frontend *)data;
816 game_params *params =
817 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
820 midend_set_params(fe->me, params);
821 midend_new_game(fe->me);
822 midend_size(fe->me, &x, &y);
823 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
828 GdkAtom compound_text_atom, utf8_string_atom;
829 int paste_initialised = FALSE;
833 if (paste_initialised)
836 if (!compound_text_atom)
837 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
838 if (!utf8_string_atom)
839 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
842 * Ensure that all the cut buffers exist - according to the
843 * ICCCM, we must do this before we start using cut buffers.
845 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
846 XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, "", 0);
847 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
848 XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, "", 0);
849 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
850 XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, "", 0);
851 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
852 XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, "", 0);
853 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
854 XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, "", 0);
855 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
856 XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, "", 0);
857 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
858 XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, "", 0);
859 XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
860 XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, "", 0);
863 /* Store data in a cut-buffer. */
864 void store_cutbuffer(char *ptr, int len)
866 /* ICCCM says we must rotate the buffers before storing to buffer 0. */
867 XRotateBuffers(GDK_DISPLAY(), 1);
868 XStoreBytes(GDK_DISPLAY(), ptr, len);
871 void write_clip(frontend *fe, char *data)
876 sfree(fe->paste_data);
879 * For this simple application we can safely assume that the
880 * data passed to this function is pure ASCII, which means we
881 * can return precisely the same stuff for types STRING,
882 * COMPOUND_TEXT or UTF8_STRING.
885 fe->paste_data = data;
886 fe->paste_data_len = strlen(data);
888 store_cutbuffer(fe->paste_data, fe->paste_data_len);
890 if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
892 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
893 GDK_SELECTION_TYPE_STRING, 1);
894 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
895 compound_text_atom, 1);
896 gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
897 utf8_string_atom, 1);
901 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
902 guint info, guint time_stamp, gpointer data)
904 frontend *fe = (frontend *)data;
905 gtk_selection_data_set(seldata, seldata->target, 8,
906 fe->paste_data, fe->paste_data_len);
909 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
912 frontend *fe = (frontend *)data;
915 sfree(fe->paste_data);
916 fe->paste_data = NULL;
917 fe->paste_data_len = 0;
921 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
923 frontend *fe = (frontend *)data;
926 text = midend_text_format(fe->me);
929 write_clip(fe, text);
935 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
937 frontend *fe = (frontend *)data;
940 msg = midend_solve(fe->me);
943 error_box(fe->window, msg);
946 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
948 frontend *fe = (frontend *)data;
950 midend_restart_game(fe->me);
953 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
955 frontend *fe = (frontend *)data;
956 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
960 if (!get_config(fe, which))
963 midend_new_game(fe->me);
964 midend_size(fe->me, &x, &y);
965 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
970 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
972 frontend *fe = (frontend *)data;
976 sprintf(titlebuf, "About %.200s", thegame.name);
979 "from Simon Tatham's Portable Puzzle Collection\n\n"
980 "%.500s", thegame.name, ver);
982 message_box(fe->window, titlebuf, textbuf, TRUE);
985 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
988 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
989 gtk_container_add(cont, menuitem);
990 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
991 GINT_TO_POINTER(key));
992 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
993 GTK_SIGNAL_FUNC(menu_key_event), fe);
994 gtk_widget_show(menuitem);
998 static void add_menu_separator(GtkContainer *cont)
1000 GtkWidget *menuitem = gtk_menu_item_new();
1001 gtk_container_add(cont, menuitem);
1002 gtk_widget_show(menuitem);
1005 static frontend *new_window(char *game_id, char **error)
1009 GtkWidget *menubar, *menu, *menuitem;
1012 fe = snew(frontend);
1014 fe->timer_active = FALSE;
1017 fe->me = midend_new(fe, &thegame);
1020 *error = midend_game_id(fe->me, game_id);
1022 midend_free(fe->me);
1027 midend_new_game(fe->me);
1029 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1030 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
1032 gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
1034 gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
1036 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
1037 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
1038 gtk_widget_show(GTK_WIDGET(vbox));
1040 menubar = gtk_menu_bar_new();
1041 gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
1042 gtk_widget_show(menubar);
1044 menuitem = gtk_menu_item_new_with_label("Game");
1045 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1046 gtk_widget_show(menuitem);
1048 menu = gtk_menu_new();
1049 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1051 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
1053 menuitem = gtk_menu_item_new_with_label("Restart");
1054 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1055 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1056 GTK_SIGNAL_FUNC(menu_restart_event), fe);
1057 gtk_widget_show(menuitem);
1059 menuitem = gtk_menu_item_new_with_label("Specific...");
1060 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1061 GINT_TO_POINTER(CFG_DESC));
1062 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1063 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1064 GTK_SIGNAL_FUNC(menu_config_event), fe);
1065 gtk_widget_show(menuitem);
1067 menuitem = gtk_menu_item_new_with_label("Random Seed...");
1068 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1069 GINT_TO_POINTER(CFG_SEED));
1070 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1071 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1072 GTK_SIGNAL_FUNC(menu_config_event), fe);
1073 gtk_widget_show(menuitem);
1075 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
1079 menuitem = gtk_menu_item_new_with_label("Type");
1080 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1081 gtk_widget_show(menuitem);
1083 submenu = gtk_menu_new();
1084 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
1086 for (i = 0; i < n; i++) {
1088 game_params *params;
1090 midend_fetch_preset(fe->me, i, &name, ¶ms);
1092 menuitem = gtk_menu_item_new_with_label(name);
1093 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1094 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
1095 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1096 GTK_SIGNAL_FUNC(menu_preset_event), fe);
1097 gtk_widget_show(menuitem);
1100 if (thegame.can_configure) {
1101 menuitem = gtk_menu_item_new_with_label("Custom...");
1102 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1103 GPOINTER_TO_INT(CFG_SETTINGS));
1104 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
1105 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1106 GTK_SIGNAL_FUNC(menu_config_event), fe);
1107 gtk_widget_show(menuitem);
1111 add_menu_separator(GTK_CONTAINER(menu));
1112 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
1113 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
1114 if (thegame.can_format_as_text) {
1115 add_menu_separator(GTK_CONTAINER(menu));
1116 menuitem = gtk_menu_item_new_with_label("Copy");
1117 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1118 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1119 GTK_SIGNAL_FUNC(menu_copy_event), fe);
1120 gtk_widget_show(menuitem);
1122 if (thegame.can_solve) {
1123 add_menu_separator(GTK_CONTAINER(menu));
1124 menuitem = gtk_menu_item_new_with_label("Solve");
1125 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1126 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1127 GTK_SIGNAL_FUNC(menu_solve_event), fe);
1128 gtk_widget_show(menuitem);
1130 add_menu_separator(GTK_CONTAINER(menu));
1131 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
1133 menuitem = gtk_menu_item_new_with_label("Help");
1134 gtk_container_add(GTK_CONTAINER(menubar), menuitem);
1135 gtk_widget_show(menuitem);
1137 menu = gtk_menu_new();
1138 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
1140 menuitem = gtk_menu_item_new_with_label("About");
1141 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1142 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1143 GTK_SIGNAL_FUNC(menu_about_event), fe);
1144 gtk_widget_show(menuitem);
1151 fe->colmap = gdk_colormap_get_system();
1152 colours = midend_colours(fe->me, &ncolours);
1153 fe->ncolours = ncolours;
1154 fe->colours = snewn(ncolours, GdkColor);
1155 for (i = 0; i < ncolours; i++) {
1156 fe->colours[i].red = colours[i*3] * 0xFFFF;
1157 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
1158 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
1160 success = snewn(ncolours, gboolean);
1161 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
1162 FALSE, FALSE, success);
1163 for (i = 0; i < ncolours; i++) {
1165 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
1166 i, fe->colours[i].red >> 8,
1167 fe->colours[i].green >> 8,
1168 fe->colours[i].blue >> 8);
1172 if (midend_wants_statusbar(fe->me)) {
1173 GtkWidget *viewport;
1176 viewport = gtk_viewport_new(NULL, NULL);
1177 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
1178 fe->statusbar = gtk_statusbar_new();
1179 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
1180 gtk_widget_show(viewport);
1181 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
1182 gtk_widget_show(fe->statusbar);
1183 fe->statusctx = gtk_statusbar_get_context_id
1184 (GTK_STATUSBAR(fe->statusbar), "game");
1185 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
1187 gtk_widget_size_request(fe->statusbar, &req);
1189 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
1191 gtk_widget_set_usize(viewport, -1, req.height);
1193 fe->statusbar = NULL;
1195 fe->area = gtk_drawing_area_new();
1196 midend_size(fe->me, &x, &y);
1197 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1201 gtk_box_pack_end(vbox, fe->area, FALSE, FALSE, 0);
1205 fe->nfonts = fe->fontsize = 0;
1207 fe->paste_data = NULL;
1208 fe->paste_data_len = 0;
1210 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
1211 GTK_SIGNAL_FUNC(destroy), fe);
1212 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
1213 GTK_SIGNAL_FUNC(key_event), fe);
1214 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
1215 GTK_SIGNAL_FUNC(button_event), fe);
1216 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
1217 GTK_SIGNAL_FUNC(button_event), fe);
1218 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
1219 GTK_SIGNAL_FUNC(motion_event), fe);
1220 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
1221 GTK_SIGNAL_FUNC(selection_get), fe);
1222 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
1223 GTK_SIGNAL_FUNC(selection_clear), fe);
1224 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
1225 GTK_SIGNAL_FUNC(expose_area), fe);
1226 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
1227 GTK_SIGNAL_FUNC(map_window), fe);
1228 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
1229 GTK_SIGNAL_FUNC(configure_area), fe);
1231 gtk_widget_add_events(GTK_WIDGET(fe->area),
1232 GDK_BUTTON_PRESS_MASK |
1233 GDK_BUTTON_RELEASE_MASK |
1234 GDK_BUTTON_MOTION_MASK);
1236 gtk_widget_show(fe->area);
1237 gtk_widget_show(fe->window);
1242 int main(int argc, char **argv)
1244 char *pname = argv[0];
1247 if (argc > 1 && !strcmp(argv[1], "--version")) {
1248 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
1254 * Special standalone mode for generating puzzle IDs on the
1255 * command line. Useful for generating puzzles to be printed
1256 * out and solved offline (for puzzles where that even makes
1257 * sense - Solo, for example, is a lot more pencil-and-paper
1258 * friendly than Net!)
1262 * <puzzle-name> --generate [<n> [<params>]]
1264 * <n>, if present, is the number of puzzle IDs to generate.
1265 * <params>, if present, is the same type of parameter string
1266 * you would pass to the puzzle when running it in GUI mode,
1267 * including optional extras such as the expansion factor in
1268 * Rectangles and the difficulty level in Solo.
1270 * If you specify <params>, you must also specify <n> (although
1271 * you may specify it to be 1). Sorry; that was the
1272 * simplest-to-parse command-line syntax I came up with.
1274 if (argc > 1 && !strcmp(argv[1], "--generate")) {
1276 char *params = NULL, *seed = NULL;
1286 par = thegame.default_params();
1288 if ( (seed = strchr(params, '#')) != NULL )
1290 thegame.decode_params(par, params);
1292 if ((error = thegame.validate_params(par)) != NULL) {
1293 fprintf(stderr, "%s: %s\n", pname, error);
1296 parstr = thegame.encode_params(par, FALSE);
1303 seedlen = strlen(seed);
1305 get_random_seed(&seeddata, &seedlen);
1307 rs = random_init(seeddata, seedlen);
1311 game_aux_info *aux = NULL;
1312 char *desc = thegame.new_desc(par, rs, &aux, FALSE);
1313 printf("%s:%s\n", parstr, desc);
1316 thegame.free_aux_info(aux);
1322 gtk_init(&argc, &argv);
1324 if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
1325 fprintf(stderr, "%s: %s\n", pname, error);