2 * gtk.c: GTK front end for my puzzle collection.
15 #include <sys/resource.h>
18 #include <gdk/gdkkeysyms.h>
20 #include <gdk-pixbuf/gdk-pixbuf.h>
24 #include <X11/Xutil.h>
25 #include <X11/Xatom.h>
29 #if GTK_CHECK_VERSION(2,0,0)
31 # ifdef PANGO_VERSION_CHECK
32 # if PANGO_VERSION_CHECK(1,8,0)
33 # define HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
37 #if !GTK_CHECK_VERSION(2,4,0)
40 #if GTK_CHECK_VERSION(2,8,0)
44 /* #undef USE_CAIRO */
45 /* #define NO_THICK_LINE */
47 static FILE *debug_fp = NULL;
52 debug_fp = fopen("debug.log", "w");
63 void debug_printf(char *fmt, ...)
69 vsprintf(buf, fmt, ap);
75 /* ----------------------------------------------------------------------
76 * Error reporting functions used elsewhere.
79 void fatal(char *fmt, ...)
83 fprintf(stderr, "fatal error: ");
86 vfprintf(stderr, fmt, ap);
89 fprintf(stderr, "\n");
93 /* ----------------------------------------------------------------------
94 * GTK front end to puzzles.
97 static void changed_preset(frontend *fe);
101 PangoFontDescription *desc;
110 * This structure holds all the data relevant to a single window.
111 * In principle this would allow us to open multiple independent
112 * puzzle windows, although I can't currently see any real point in
113 * doing so. I'm just coding cleanly because there's no
114 * particularly good reason not to.
118 GtkAccelGroup *accelgroup;
120 GtkWidget *statusbar;
126 const float *colours;
128 cairo_surface_t *image;
130 GdkColor background; /* for painting outside puzzle area */
136 int backgroundindex; /* which of colours[] is background */
139 int bbox_l, bbox_r, bbox_u, bbox_d;
140 int timer_active, timer_id;
141 struct timeval last_time;
143 int nfonts, fontsize;
145 int cfg_which, cfgret;
149 int pw, ph; /* pixmap size (w, h are area size) */
150 int ox, oy; /* offset of pixmap in drawing area */
154 int drawing_area_shrink_pending;
155 GSList *preset_radio;
156 int n_preset_menu_items;
158 GtkWidget *preset_custom;
159 GtkWidget *copy_menu_item;
160 int menubar_is_local;
165 cairo_surface_t *image;
172 void get_random_seed(void **randseed, int *randseedsize)
174 struct timeval *tvp = snew(struct timeval);
175 gettimeofday(tvp, NULL);
176 *randseed = (void *)tvp;
177 *randseedsize = sizeof(struct timeval);
180 void frontend_default_colour(frontend *fe, float *output)
182 GdkColor col = fe->window->style->bg[GTK_STATE_NORMAL];
183 output[0] = col.red / 65535.0;
184 output[1] = col.green / 65535.0;
185 output[2] = col.blue / 65535.0;
188 void gtk_status_bar(void *handle, char *text)
190 frontend *fe = (frontend *)handle;
192 assert(fe->statusbar);
194 gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
195 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, text);
198 /* ----------------------------------------------------------------------
199 * Cairo drawing functions.
204 static void setup_drawing(frontend *fe)
206 fe->cr = cairo_create(fe->image);
207 cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_GRAY);
208 cairo_set_line_width(fe->cr, 1.0);
209 cairo_set_line_cap(fe->cr, CAIRO_LINE_CAP_SQUARE);
210 cairo_set_line_join(fe->cr, CAIRO_LINE_JOIN_ROUND);
213 static void teardown_drawing(frontend *fe)
217 cairo_destroy(fe->cr);
220 cr = gdk_cairo_create(fe->pixmap);
221 cairo_set_source_surface(cr, fe->image, 0, 0);
225 fe->bbox_r - fe->bbox_l + 2,
226 fe->bbox_d - fe->bbox_u + 2);
231 static void snaffle_colours(frontend *fe)
233 fe->colours = midend_colours(fe->me, &fe->ncolours);
236 static void set_colour(frontend *fe, int colour)
238 cairo_set_source_rgb(fe->cr,
239 fe->colours[3*colour + 0],
240 fe->colours[3*colour + 1],
241 fe->colours[3*colour + 2]);
244 static void set_window_background(frontend *fe, int colour)
248 colmap = gdk_colormap_get_system();
249 fe->background.red = fe->colours[3*colour + 0] * 65535;
250 fe->background.green = fe->colours[3*colour + 1] * 65535;
251 fe->background.blue = fe->colours[3*colour + 2] * 65535;
252 if (!gdk_colormap_alloc_color(colmap, &fe->background, FALSE, FALSE)) {
253 g_error("couldn't allocate background (#%02x%02x%02x)\n",
254 fe->background.red >> 8, fe->background.green >> 8,
255 fe->background.blue >> 8);
257 gdk_window_set_background(fe->area->window, &fe->background);
258 gdk_window_set_background(fe->window->window, &fe->background);
261 static PangoLayout *make_pango_layout(frontend *fe)
263 return (pango_cairo_create_layout(fe->cr));
266 static void draw_pango_layout(frontend *fe, PangoLayout *layout,
269 cairo_move_to(fe->cr, x, y);
270 pango_cairo_show_layout(fe->cr, layout);
273 static void save_screenshot_png(frontend *fe, const char *screenshot_file)
275 cairo_surface_write_to_png(fe->image, screenshot_file);
278 static void do_clip(frontend *fe, int x, int y, int w, int h)
280 cairo_new_path(fe->cr);
281 cairo_rectangle(fe->cr, x, y, w, h);
285 static void do_unclip(frontend *fe)
287 cairo_reset_clip(fe->cr);
290 static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
293 cairo_new_path(fe->cr);
294 cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_NONE);
295 cairo_rectangle(fe->cr, x, y, w, h);
297 cairo_restore(fe->cr);
300 static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
302 cairo_new_path(fe->cr);
303 cairo_move_to(fe->cr, x1 + 0.5, y1 + 0.5);
304 cairo_line_to(fe->cr, x2 + 0.5, y2 + 0.5);
305 cairo_stroke(fe->cr);
308 static void do_draw_thick_line(frontend *fe, float thickness,
309 float x1, float y1, float x2, float y2)
312 cairo_set_line_width(fe->cr, thickness);
313 cairo_new_path(fe->cr);
314 cairo_move_to(fe->cr, x1, y1);
315 cairo_line_to(fe->cr, x2, y2);
316 cairo_stroke(fe->cr);
317 cairo_restore(fe->cr);
320 static void do_draw_poly(frontend *fe, int *coords, int npoints,
321 int fillcolour, int outlinecolour)
325 cairo_new_path(fe->cr);
326 for (i = 0; i < npoints; i++)
327 cairo_line_to(fe->cr, coords[i*2] + 0.5, coords[i*2 + 1] + 0.5);
328 cairo_close_path(fe->cr);
329 if (fillcolour >= 0) {
330 set_colour(fe, fillcolour);
331 cairo_fill_preserve(fe->cr);
333 assert(outlinecolour >= 0);
334 set_colour(fe, outlinecolour);
335 cairo_stroke(fe->cr);
338 static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
339 int fillcolour, int outlinecolour)
341 cairo_new_path(fe->cr);
342 cairo_arc(fe->cr, cx + 0.5, cy + 0.5, radius, 0, 2*PI);
343 cairo_close_path(fe->cr); /* Just in case... */
344 if (fillcolour >= 0) {
345 set_colour(fe, fillcolour);
346 cairo_fill_preserve(fe->cr);
348 assert(outlinecolour >= 0);
349 set_colour(fe, outlinecolour);
350 cairo_stroke(fe->cr);
353 static void setup_blitter(blitter *bl, int w, int h)
355 bl->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24, w, h);
358 static void teardown_blitter(blitter *bl)
360 cairo_surface_destroy(bl->image);
363 static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
365 cairo_t *cr = cairo_create(bl->image);
367 cairo_set_source_surface(cr, fe->image, -x, -y);
372 static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
374 cairo_set_source_surface(fe->cr, bl->image, x, y);
378 static void clear_backing_store(frontend *fe)
383 static void setup_backing_store(frontend *fe)
388 fe->pixmap = gdk_pixmap_new(fe->area->window, fe->pw, fe->ph, -1);
389 fe->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
392 for (i = 0; i < 3; i++) {
394 case 0: cr = cairo_create(fe->image); break;
395 case 1: cr = gdk_cairo_create(fe->pixmap); break;
396 case 2: cr = gdk_cairo_create(fe->area->window); break;
398 cairo_set_source_rgb(cr,
399 fe->colours[0], fe->colours[1], fe->colours[2]);
405 static int backing_store_ok(frontend *fe)
407 return (!!fe->image);
410 static void teardown_backing_store(frontend *fe)
412 cairo_surface_destroy(fe->image);
413 gdk_pixmap_unref(fe->pixmap);
419 /* ----------------------------------------------------------------------
420 * GDK drawing functions.
425 static void setup_drawing(frontend *fe)
427 fe->gc = gdk_gc_new(fe->area->window);
430 static void teardown_drawing(frontend *fe)
432 gdk_gc_unref(fe->gc);
436 static void snaffle_colours(frontend *fe)
442 fe->colmap = gdk_colormap_get_system();
443 colours = midend_colours(fe->me, &ncolours);
444 fe->ncolours = ncolours;
445 fe->colours = snewn(ncolours, GdkColor);
446 for (i = 0; i < ncolours; i++) {
447 fe->colours[i].red = colours[i*3] * 0xFFFF;
448 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
449 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
451 success = snewn(ncolours, gboolean);
452 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
453 FALSE, FALSE, success);
454 for (i = 0; i < ncolours; i++) {
456 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
457 i, fe->colours[i].red >> 8,
458 fe->colours[i].green >> 8,
459 fe->colours[i].blue >> 8);
464 static void set_window_background(frontend *fe, int colour)
466 fe->backgroundindex = colour;
467 gdk_window_set_background(fe->area->window, &fe->colours[colour]);
468 gdk_window_set_background(fe->window->window, &fe->colours[colour]);
471 static void set_colour(frontend *fe, int colour)
473 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
477 static PangoLayout *make_pango_layout(frontend *fe)
479 return (pango_layout_new(gtk_widget_get_pango_context(fe->area)));
482 static void draw_pango_layout(frontend *fe, PangoLayout *layout,
485 gdk_draw_layout(fe->pixmap, fe->gc, x, y, layout);
489 static void save_screenshot_png(frontend *fe, const char *screenshot_file)
492 GError *gerror = NULL;
494 midend_redraw(fe->me);
496 pb = gdk_pixbuf_get_from_drawable(NULL, fe->pixmap,
497 NULL, 0, 0, 0, 0, -1, -1);
498 gdk_pixbuf_save(pb, screenshot_file, "png", &gerror, NULL);
501 static void do_clip(frontend *fe, int x, int y, int w, int h)
509 gdk_gc_set_clip_rectangle(fe->gc, &rect);
512 static void do_unclip(frontend *fe)
520 gdk_gc_set_clip_rectangle(fe->gc, &rect);
523 static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
525 gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
528 static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
530 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
533 static void do_draw_thick_line(frontend *fe, float thickness,
534 float x1, float y1, float x2, float y2)
538 gdk_gc_get_values(fe->gc, &save);
539 gdk_gc_set_line_attributes(fe->gc,
544 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
545 gdk_gc_set_line_attributes(fe->gc,
552 static void do_draw_poly(frontend *fe, int *coords, int npoints,
553 int fillcolour, int outlinecolour)
555 GdkPoint *points = snewn(npoints, GdkPoint);
558 for (i = 0; i < npoints; i++) {
559 points[i].x = coords[i*2];
560 points[i].y = coords[i*2+1];
563 if (fillcolour >= 0) {
564 set_colour(fe, fillcolour);
565 gdk_draw_polygon(fe->pixmap, fe->gc, TRUE, points, npoints);
567 assert(outlinecolour >= 0);
568 set_colour(fe, outlinecolour);
571 * In principle we ought to be able to use gdk_draw_polygon for
572 * the outline as well. In fact, it turns out to interact badly
573 * with a clipping region, for no terribly obvious reason, so I
574 * draw the outline as a sequence of lines instead.
576 for (i = 0; i < npoints; i++)
577 gdk_draw_line(fe->pixmap, fe->gc,
578 points[i].x, points[i].y,
579 points[(i+1)%npoints].x, points[(i+1)%npoints].y);
584 static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
585 int fillcolour, int outlinecolour)
587 if (fillcolour >= 0) {
588 set_colour(fe, fillcolour);
589 gdk_draw_arc(fe->pixmap, fe->gc, TRUE,
590 cx - radius, cy - radius,
591 2 * radius, 2 * radius, 0, 360 * 64);
594 assert(outlinecolour >= 0);
595 set_colour(fe, outlinecolour);
596 gdk_draw_arc(fe->pixmap, fe->gc, FALSE,
597 cx - radius, cy - radius,
598 2 * radius, 2 * radius, 0, 360 * 64);
601 static void setup_blitter(blitter *bl, int w, int h)
604 * We can't create the pixmap right now, because fe->window
605 * might not yet exist. So we just cache w and h and create it
606 * during the firs call to blitter_save.
611 static void teardown_blitter(blitter *bl)
614 gdk_pixmap_unref(bl->pixmap);
617 static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
620 bl->pixmap = gdk_pixmap_new(fe->area->window, bl->w, bl->h, -1);
621 gdk_draw_pixmap(bl->pixmap,
622 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
624 x, y, 0, 0, bl->w, bl->h);
627 static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
630 gdk_draw_pixmap(fe->pixmap,
631 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
633 0, 0, x, y, bl->w, bl->h);
636 static void clear_backing_store(frontend *fe)
641 static void setup_backing_store(frontend *fe)
645 fe->pixmap = gdk_pixmap_new(fe->area->window, fe->pw, fe->ph, -1);
647 gc = gdk_gc_new(fe->area->window);
648 gdk_gc_set_foreground(gc, &fe->colours[0]);
649 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->pw, fe->ph);
650 gdk_draw_rectangle(fe->area->window, gc, 1, 0, 0, fe->w, fe->h);
654 static int backing_store_ok(frontend *fe)
656 return (!!fe->pixmap);
659 static void teardown_backing_store(frontend *fe)
661 gdk_pixmap_unref(fe->pixmap);
667 static void repaint_rectangle(frontend *fe, GtkWidget *widget,
668 int x, int y, int w, int h)
670 GdkGC *gc = gdk_gc_new(widget->window);
672 gdk_gc_set_foreground(gc, &fe->background);
674 gdk_gc_set_foreground(gc, &fe->colours[fe->backgroundindex]);
677 gdk_draw_rectangle(widget->window, gc,
678 TRUE, x, y, fe->ox - x, h);
683 gdk_draw_rectangle(widget->window, gc,
684 TRUE, x, y, w, fe->oy - y);
689 gdk_draw_rectangle(widget->window, gc,
690 TRUE, x + fe->pw, y, w - fe->pw, h);
694 gdk_draw_rectangle(widget->window, gc,
695 TRUE, x, y + fe->ph, w, h - fe->ph);
698 gdk_draw_pixmap(widget->window, gc, fe->pixmap,
699 x - fe->ox, y - fe->oy, x, y, w, h);
703 /* ----------------------------------------------------------------------
704 * Pango font functions.
709 static void add_font(frontend *fe, int index, int fonttype, int fontsize)
712 * Use Pango to find the closest match to the requested
715 PangoFontDescription *fd;
717 fd = pango_font_description_new();
718 /* `Monospace' and `Sans' are meta-families guaranteed to exist */
719 pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
720 "Monospace" : "Sans");
721 pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
723 * I found some online Pango documentation which
724 * described a function called
725 * pango_font_description_set_absolute_size(), which is
726 * _exactly_ what I want here. Unfortunately, none of
727 * my local Pango installations have it (presumably
728 * they're too old), so I'm going to have to hack round
729 * it by figuring out the point size myself. This
730 * limits me to X and probably also breaks in later
731 * Pango installations, so ideally I should add another
732 * CHECK_VERSION type ifdef and use set_absolute_size
733 * where available. All very annoying.
735 #ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
736 pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
739 Display *d = GDK_DISPLAY();
740 int s = DefaultScreen(d);
742 (PANGO_SCALE * 72.27 / 25.4) *
743 ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
744 pango_font_description_set_size(fd, resolution * fontsize);
747 fe->fonts[index].desc = fd;
750 static void align_and_draw_text(frontend *fe,
751 int index, int align, int x, int y,
757 layout = make_pango_layout(fe);
762 pango_layout_set_font_description(layout, fe->fonts[index].desc);
763 pango_layout_set_text(layout, text, strlen(text));
764 pango_layout_get_pixel_extents(layout, NULL, &rect);
766 if (align & ALIGN_VCENTRE)
767 rect.y -= rect.height / 2;
769 rect.y -= rect.height;
771 if (align & ALIGN_HCENTRE)
772 rect.x -= rect.width / 2;
773 else if (align & ALIGN_HRIGHT)
774 rect.x -= rect.width;
776 draw_pango_layout(fe, layout, rect.x + x, rect.y + y);
778 g_object_unref(layout);
783 /* ----------------------------------------------------------------------
784 * Old-fashioned font functions.
789 static void add_font(int index, int fonttype, int fontsize)
792 * In GTK 1.2, I don't know of any plausible way to
793 * pick a suitable font, so I'm just going to be
796 fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
797 "fixed" : "variable");
800 static void align_and_draw_text(int index, int align, int x, int y,
803 int lb, rb, wid, asc, desc;
806 * Measure vertical string extents with respect to the same
809 gdk_string_extents(fe->fonts[i].font,
810 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
811 &lb, &rb, &wid, &asc, &desc);
812 if (align & ALIGN_VCENTRE)
813 y += asc - (asc+desc)/2;
818 * ... but horizontal extents with respect to the provided
819 * string. This means that multiple pieces of text centred
820 * on the same y-coordinate don't have different baselines.
822 gdk_string_extents(fe->fonts[i].font, text,
823 &lb, &rb, &wid, &asc, &desc);
825 if (align & ALIGN_HCENTRE)
827 else if (align & ALIGN_HRIGHT)
831 * Actually draw the text.
833 gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
838 /* ----------------------------------------------------------------------
839 * The exported drawing functions.
842 void gtk_start_draw(void *handle)
844 frontend *fe = (frontend *)handle;
852 void gtk_clip(void *handle, int x, int y, int w, int h)
854 frontend *fe = (frontend *)handle;
855 do_clip(fe, x, y, w, h);
858 void gtk_unclip(void *handle)
860 frontend *fe = (frontend *)handle;
864 void gtk_draw_text(void *handle, int x, int y, int fonttype, int fontsize,
865 int align, int colour, char *text)
867 frontend *fe = (frontend *)handle;
871 * Find or create the font.
873 for (i = 0; i < fe->nfonts; i++)
874 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
877 if (i == fe->nfonts) {
878 if (fe->fontsize <= fe->nfonts) {
879 fe->fontsize = fe->nfonts + 10;
880 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
885 fe->fonts[i].type = fonttype;
886 fe->fonts[i].size = fontsize;
887 add_font(fe, i, fonttype, fontsize);
893 set_colour(fe, colour);
894 align_and_draw_text(fe, i, align, x, y, text);
897 void gtk_draw_rect(void *handle, int x, int y, int w, int h, int colour)
899 frontend *fe = (frontend *)handle;
900 set_colour(fe, colour);
901 do_draw_rect(fe, x, y, w, h);
904 void gtk_draw_line(void *handle, int x1, int y1, int x2, int y2, int colour)
906 frontend *fe = (frontend *)handle;
907 set_colour(fe, colour);
908 do_draw_line(fe, x1, y1, x2, y2);
911 void gtk_draw_thick_line(void *handle, float thickness,
912 float x1, float y1, float x2, float y2, int colour)
914 frontend *fe = (frontend *)handle;
915 set_colour(fe, colour);
916 do_draw_thick_line(fe, thickness, x1, y1, x2, y2);
919 void gtk_draw_poly(void *handle, int *coords, int npoints,
920 int fillcolour, int outlinecolour)
922 frontend *fe = (frontend *)handle;
923 do_draw_poly(fe, coords, npoints, fillcolour, outlinecolour);
926 void gtk_draw_circle(void *handle, int cx, int cy, int radius,
927 int fillcolour, int outlinecolour)
929 frontend *fe = (frontend *)handle;
930 do_draw_circle(fe, cx, cy, radius, fillcolour, outlinecolour);
933 blitter *gtk_blitter_new(void *handle, int w, int h)
935 blitter *bl = snew(blitter);
936 setup_blitter(bl, w, h);
942 void gtk_blitter_free(void *handle, blitter *bl)
944 teardown_blitter(bl);
948 void gtk_blitter_save(void *handle, blitter *bl, int x, int y)
950 frontend *fe = (frontend *)handle;
951 do_blitter_save(fe, bl, x, y);
956 void gtk_blitter_load(void *handle, blitter *bl, int x, int y)
958 frontend *fe = (frontend *)handle;
959 if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
963 do_blitter_load(fe, bl, x, y);
966 void gtk_draw_update(void *handle, int x, int y, int w, int h)
968 frontend *fe = (frontend *)handle;
969 if (fe->bbox_l > x ) fe->bbox_l = x ;
970 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
971 if (fe->bbox_u > y ) fe->bbox_u = y ;
972 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
975 void gtk_end_draw(void *handle)
977 frontend *fe = (frontend *)handle;
979 teardown_drawing(fe);
981 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
982 repaint_rectangle(fe, fe->area,
983 fe->bbox_l - 1 + fe->ox,
984 fe->bbox_u - 1 + fe->oy,
985 fe->bbox_r - fe->bbox_l + 2,
986 fe->bbox_d - fe->bbox_u + 2);
991 char *gtk_text_fallback(void *handle, const char *const *strings, int nstrings)
994 * We assume Pango can cope with any UTF-8 likely to be emitted
997 return dupstr(strings[0]);
1001 const struct drawing_api gtk_drawing = {
1017 NULL, NULL, NULL, NULL, NULL, NULL, /* {begin,end}_{doc,page,puzzle} */
1018 NULL, NULL, /* line_width, line_dotted */
1024 #ifdef NO_THICK_LINE
1027 gtk_draw_thick_line,
1031 static void destroy(GtkWidget *widget, gpointer data)
1033 frontend *fe = (frontend *)data;
1034 deactivate_timer(fe);
1035 midend_free(fe->me);
1039 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
1041 frontend *fe = (frontend *)data;
1043 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
1044 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
1046 if (!backing_store_ok(fe))
1049 #if !GTK_CHECK_VERSION(2,0,0)
1050 /* Gtk 1.2 passes a key event to this function even if it's also
1051 * defined as an accelerator.
1052 * Gtk 2 doesn't do this, and this function appears not to exist there. */
1053 if (fe->accelgroup &&
1054 gtk_accel_group_get_entry(fe->accelgroup,
1055 event->keyval, event->state))
1059 /* Handle mnemonics. */
1060 if (gtk_window_activate_key(GTK_WINDOW(fe->window), event))
1063 if (event->keyval == GDK_Up)
1064 keyval = shift | ctrl | CURSOR_UP;
1065 else if (event->keyval == GDK_KP_Up || event->keyval == GDK_KP_8)
1066 keyval = MOD_NUM_KEYPAD | '8';
1067 else if (event->keyval == GDK_Down)
1068 keyval = shift | ctrl | CURSOR_DOWN;
1069 else if (event->keyval == GDK_KP_Down || event->keyval == GDK_KP_2)
1070 keyval = MOD_NUM_KEYPAD | '2';
1071 else if (event->keyval == GDK_Left)
1072 keyval = shift | ctrl | CURSOR_LEFT;
1073 else if (event->keyval == GDK_KP_Left || event->keyval == GDK_KP_4)
1074 keyval = MOD_NUM_KEYPAD | '4';
1075 else if (event->keyval == GDK_Right)
1076 keyval = shift | ctrl | CURSOR_RIGHT;
1077 else if (event->keyval == GDK_KP_Right || event->keyval == GDK_KP_6)
1078 keyval = MOD_NUM_KEYPAD | '6';
1079 else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
1080 keyval = MOD_NUM_KEYPAD | '7';
1081 else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
1082 keyval = MOD_NUM_KEYPAD | '1';
1083 else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
1084 keyval = MOD_NUM_KEYPAD | '9';
1085 else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
1086 keyval = MOD_NUM_KEYPAD | '3';
1087 else if (event->keyval == GDK_KP_Insert || event->keyval == GDK_KP_0)
1088 keyval = MOD_NUM_KEYPAD | '0';
1089 else if (event->keyval == GDK_KP_Begin || event->keyval == GDK_KP_5)
1090 keyval = MOD_NUM_KEYPAD | '5';
1091 else if (event->keyval == GDK_BackSpace ||
1092 event->keyval == GDK_Delete ||
1093 event->keyval == GDK_KP_Delete)
1095 else if (event->string[0] && !event->string[1])
1096 keyval = (unsigned char)event->string[0];
1101 !midend_process_key(fe->me, 0, 0, keyval))
1102 gtk_widget_destroy(fe->window);
1107 static gint button_event(GtkWidget *widget, GdkEventButton *event,
1110 frontend *fe = (frontend *)data;
1113 if (!backing_store_ok(fe))
1116 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
1119 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
1120 button = MIDDLE_BUTTON;
1121 else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
1122 button = RIGHT_BUTTON;
1123 else if (event->button == 1)
1124 button = LEFT_BUTTON;
1126 return FALSE; /* don't even know what button! */
1128 if (event->type == GDK_BUTTON_RELEASE)
1129 button += LEFT_RELEASE - LEFT_BUTTON;
1131 if (!midend_process_key(fe->me, event->x - fe->ox,
1132 event->y - fe->oy, button))
1133 gtk_widget_destroy(fe->window);
1138 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
1141 frontend *fe = (frontend *)data;
1144 if (!backing_store_ok(fe))
1147 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
1148 button = MIDDLE_DRAG;
1149 else if (event->state & GDK_BUTTON1_MASK)
1151 else if (event->state & GDK_BUTTON3_MASK)
1152 button = RIGHT_DRAG;
1154 return FALSE; /* don't even know what button! */
1156 if (!midend_process_key(fe->me, event->x - fe->ox,
1157 event->y - fe->oy, button))
1158 gtk_widget_destroy(fe->window);
1159 #if GTK_CHECK_VERSION(2,12,0)
1160 gdk_event_request_motions(event);
1162 gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
1168 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
1171 frontend *fe = (frontend *)data;
1173 if (backing_store_ok(fe)) {
1174 repaint_rectangle(fe, widget,
1175 event->area.x, event->area.y,
1176 event->area.width, event->area.height);
1181 static gint map_window(GtkWidget *widget, GdkEvent *event,
1184 frontend *fe = (frontend *)data;
1187 * Apparently we need to do this because otherwise the status
1188 * bar will fail to update immediately. Annoying, but there we
1191 gtk_widget_queue_draw(fe->window);
1196 static gint configure_area(GtkWidget *widget,
1197 GdkEventConfigure *event, gpointer data)
1199 frontend *fe = (frontend *)data;
1205 if (x != fe->w || y != fe->h || !backing_store_ok(fe)) {
1206 if (backing_store_ok(fe))
1207 teardown_backing_store(fe);
1211 midend_size(fe->me, &x, &y, TRUE);
1214 fe->ox = (fe->w - fe->pw) / 2;
1215 fe->oy = (fe->h - fe->ph) / 2;
1217 setup_backing_store(fe);
1220 midend_force_redraw(fe->me);
1225 static gint timer_func(gpointer data)
1227 frontend *fe = (frontend *)data;
1229 if (fe->timer_active) {
1232 gettimeofday(&now, NULL);
1233 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
1234 (now.tv_sec - fe->last_time.tv_sec));
1235 midend_timer(fe->me, elapsed); /* may clear timer_active */
1236 fe->last_time = now;
1239 return fe->timer_active;
1242 void deactivate_timer(frontend *fe)
1245 return; /* can happen due to --generate */
1246 if (fe->timer_active)
1247 gtk_timeout_remove(fe->timer_id);
1248 fe->timer_active = FALSE;
1251 void activate_timer(frontend *fe)
1254 return; /* can happen due to --generate */
1255 if (!fe->timer_active) {
1256 fe->timer_id = gtk_timeout_add(20, timer_func, fe);
1257 gettimeofday(&fe->last_time, NULL);
1259 fe->timer_active = TRUE;
1262 static void window_destroy(GtkWidget *widget, gpointer data)
1267 static void msgbox_button_clicked(GtkButton *button, gpointer data)
1269 GtkWidget *window = GTK_WIDGET(data);
1272 ip = (int *)gtk_object_get_data(GTK_OBJECT(window), "user-data");
1273 v = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "user-data"));
1276 gtk_widget_destroy(GTK_WIDGET(data));
1279 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
1281 GtkObject *cancelbutton = GTK_OBJECT(data);
1284 * `Escape' effectively clicks the cancel button
1286 if (event->keyval == GDK_Escape) {
1287 gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
1294 enum { MB_OK, MB_YESNO };
1296 int message_box(GtkWidget *parent, char *title, char *msg, int centre,
1299 GtkWidget *window, *hbox, *text, *button;
1303 window = gtk_dialog_new();
1304 text = gtk_label_new(msg);
1305 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
1306 hbox = gtk_hbox_new(FALSE, 0);
1307 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
1308 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
1309 hbox, FALSE, FALSE, 20);
1310 gtk_widget_show(text);
1311 gtk_widget_show(hbox);
1312 gtk_window_set_title(GTK_WINDOW(window), title);
1313 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
1315 if (type == MB_OK) {
1316 titles = GTK_STOCK_OK "\0";
1319 assert(type == MB_YESNO);
1320 titles = GTK_STOCK_NO "\0" GTK_STOCK_YES "\0";
1327 button = gtk_button_new_from_stock(titles);
1328 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
1329 button, FALSE, FALSE, 0);
1330 gtk_widget_show(button);
1332 GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
1333 gtk_window_set_default(GTK_WINDOW(window), button);
1336 gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
1337 GTK_SIGNAL_FUNC(win_key_press), button);
1339 gtk_signal_connect(GTK_OBJECT(button), "clicked",
1340 GTK_SIGNAL_FUNC(msgbox_button_clicked), window);
1341 gtk_object_set_data(GTK_OBJECT(button), "user-data",
1342 GINT_TO_POINTER(i));
1343 titles += strlen(titles)+1;
1346 gtk_object_set_data(GTK_OBJECT(window), "user-data", &i);
1347 gtk_signal_connect(GTK_OBJECT(window), "destroy",
1348 GTK_SIGNAL_FUNC(window_destroy), NULL);
1349 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
1350 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
1351 /* set_transient_window_pos(parent, window); */
1352 gtk_widget_show(window);
1355 return (type == MB_YESNO ? i == 1 : TRUE);
1358 void error_box(GtkWidget *parent, char *msg)
1360 message_box(parent, "Error", msg, FALSE, MB_OK);
1363 static void config_ok_button_clicked(GtkButton *button, gpointer data)
1365 frontend *fe = (frontend *)data;
1368 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
1371 error_box(fe->cfgbox, err);
1374 gtk_widget_destroy(fe->cfgbox);
1379 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
1381 frontend *fe = (frontend *)data;
1383 gtk_widget_destroy(fe->cfgbox);
1386 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
1389 * GtkEntry has a nasty habit of eating the Return key, which
1390 * is unhelpful since it doesn't actually _do_ anything with it
1391 * (it calls gtk_widget_activate, but our edit boxes never need
1392 * activating). So I catch Return before GtkEntry sees it, and
1393 * pass it straight on to the parent widget. Effect: hitting
1394 * Return in an edit box will now activate the default button
1395 * in the dialog just like it will everywhere else.
1397 if (event->keyval == GDK_Return && widget->parent != NULL) {
1399 gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
1400 gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
1401 event, &return_val);
1407 static void editbox_changed(GtkEditable *ed, gpointer data)
1409 config_item *i = (config_item *)data;
1412 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
1415 static void button_toggled(GtkToggleButton *tb, gpointer data)
1417 config_item *i = (config_item *)data;
1419 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
1422 static void droplist_sel(GtkMenuItem *item, gpointer data)
1424 config_item *i = (config_item *)data;
1426 i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
1430 static int get_config(frontend *fe, int which)
1432 GtkWidget *w, *table, *cancel;
1437 fe->cfg = midend_get_config(fe->me, which, &title);
1438 fe->cfg_which = which;
1441 fe->cfgbox = gtk_dialog_new();
1442 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
1445 w = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
1446 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
1447 w, FALSE, FALSE, 0);
1449 gtk_signal_connect(GTK_OBJECT(w), "clicked",
1450 GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
1453 w = gtk_button_new_from_stock(GTK_STOCK_OK);
1454 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
1455 w, FALSE, FALSE, 0);
1457 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
1458 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
1459 gtk_signal_connect(GTK_OBJECT(w), "clicked",
1460 GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
1462 table = gtk_table_new(1, 2, FALSE);
1464 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
1465 table, FALSE, FALSE, 0);
1466 gtk_widget_show(table);
1468 for (i = fe->cfg; i->type != C_END; i++) {
1469 gtk_table_resize(GTK_TABLE(table), y+1, 2);
1474 * Edit box with a label beside it.
1477 w = gtk_label_new(i->name);
1478 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
1479 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
1480 GTK_SHRINK | GTK_FILL,
1481 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1485 w = gtk_entry_new();
1486 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
1487 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1488 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1490 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
1491 gtk_signal_connect(GTK_OBJECT(w), "changed",
1492 GTK_SIGNAL_FUNC(editbox_changed), i);
1493 gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
1494 GTK_SIGNAL_FUNC(editbox_key), NULL);
1503 w = gtk_check_button_new_with_label(i->name);
1504 gtk_signal_connect(GTK_OBJECT(w), "toggled",
1505 GTK_SIGNAL_FUNC(button_toggled), i);
1506 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
1507 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1508 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1510 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
1516 * Drop-down list (GtkOptionMenu).
1519 w = gtk_label_new(i->name);
1520 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
1521 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
1522 GTK_SHRINK | GTK_FILL,
1523 GTK_EXPAND | GTK_SHRINK | GTK_FILL ,
1527 w = gtk_option_menu_new();
1528 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
1529 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1530 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1537 GtkWidget *menuitem;
1538 GtkWidget *menu = gtk_menu_new();
1540 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
1548 while (*q && *q != c)
1551 name = snewn(q-p+1, char);
1552 strncpy(name, p, q-p);
1555 if (*q) q++; /* eat delimiter */
1557 menuitem = gtk_menu_item_new_with_label(name);
1558 gtk_container_add(GTK_CONTAINER(menu), menuitem);
1559 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
1560 GINT_TO_POINTER(val));
1561 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
1562 GTK_SIGNAL_FUNC(droplist_sel), i);
1563 gtk_widget_show(menuitem);
1570 gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
1579 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
1580 GTK_SIGNAL_FUNC(window_destroy), NULL);
1581 gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
1582 GTK_SIGNAL_FUNC(win_key_press), cancel);
1583 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
1584 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
1585 GTK_WINDOW(fe->window));
1586 /* set_transient_window_pos(fe->window, fe->cfgbox); */
1587 gtk_widget_show(fe->cfgbox);
1595 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
1597 frontend *fe = (frontend *)data;
1598 int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
1600 if (!midend_process_key(fe->me, 0, 0, key))
1601 gtk_widget_destroy(fe->window);
1604 static void get_size(frontend *fe, int *px, int *py)
1609 * Currently I don't want to make the GTK port scale large
1610 * puzzles to fit on the screen. This is because X does permit
1611 * extremely large windows and many window managers provide a
1612 * means of navigating round them, and the users I consulted
1613 * before deciding said that they'd rather have enormous puzzle
1614 * windows spanning multiple screen pages than have them
1615 * shrunk. I could change my mind later or introduce
1616 * configurability; this would be the place to do so, by
1617 * replacing the initial values of x and y with the screen
1622 midend_size(fe->me, &x, &y, FALSE);
1627 #if !GTK_CHECK_VERSION(2,0,0)
1628 #define gtk_window_resize(win, x, y) \
1629 gdk_window_resize(GTK_WIDGET(win)->window, x, y)
1633 * Called when any other code in this file has changed the
1634 * selected game parameters.
1636 static void changed_preset(frontend *fe)
1638 int n = midend_which_preset(fe->me);
1640 fe->preset_threaded = TRUE;
1641 if (n < 0 && fe->preset_custom) {
1642 gtk_check_menu_item_set_active(
1643 GTK_CHECK_MENU_ITEM(fe->preset_custom),
1646 GSList *gs = fe->preset_radio;
1647 int i = fe->n_preset_menu_items - 1 - n;
1648 if (fe->preset_custom)
1655 gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(gs->data),
1657 } else for (gs = fe->preset_radio; gs; gs = gs->next) {
1658 gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(gs->data),
1662 fe->preset_threaded = FALSE;
1665 * Update the greying on the Copy menu option.
1667 if (fe->copy_menu_item) {
1668 int enabled = midend_can_format_as_text_now(fe->me);
1669 gtk_widget_set_sensitive(fe->copy_menu_item, enabled);
1673 static gboolean not_size_allocated_yet(GtkWidget *w)
1676 * This function tests whether a widget has not yet taken up space
1677 * on the screen which it will occupy in future. (Therefore, it
1678 * returns true only if the widget does exist but does not have a
1679 * size allocation. A null widget is already taking up all the
1680 * space it ever will.)
1683 return FALSE; /* nonexistent widgets aren't a problem */
1685 #if GTK_CHECK_VERSION(2,18,0) /* skip if no gtk_widget_get_allocation */
1688 gtk_widget_get_allocation(w, &a);
1689 if (a.height == 0 || a.width == 0)
1690 return TRUE; /* widget exists but has no size yet */
1697 static void try_shrink_drawing_area(frontend *fe)
1699 if (fe->drawing_area_shrink_pending &&
1700 (!fe->menubar_is_local || !not_size_allocated_yet(fe->menubar)) &&
1701 !not_size_allocated_yet(fe->statusbar)) {
1703 * In order to permit the user to resize the window smaller as
1704 * well as bigger, we call this function after the window size
1705 * has ended up where we want it. This shouldn't shrink the
1706 * window immediately; it just arranges that the next time the
1707 * user tries to shrink it, they can.
1709 * However, at puzzle creation time, we defer the first of
1710 * these operations until after the menu bar and status bar
1711 * are actually visible. On Ubuntu 12.04 I've found that these
1712 * can take a while to be displayed, and that it's a mistake
1713 * to reduce the drawing area's size allocation before they've
1714 * turned up or else the drawing area makes room for them by
1715 * shrinking to less than the size we intended.
1717 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), 1, 1);
1718 fe->drawing_area_shrink_pending = FALSE;
1722 static gint configure_window(GtkWidget *widget,
1723 GdkEventConfigure *event, gpointer data)
1725 frontend *fe = (frontend *)data;
1727 * When the main puzzle window changes size, it might be because
1728 * the menu bar or status bar has turned up after starting off
1729 * absent, in which case we should have another go at enacting a
1730 * pending shrink of the drawing area.
1732 try_shrink_drawing_area(fe);
1736 static void resize_fe(frontend *fe)
1740 get_size(fe, &x, &y);
1743 fe->drawing_area_shrink_pending = FALSE;
1744 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1747 gtk_widget_size_request(GTK_WIDGET(fe->window), &req);
1748 gtk_window_resize(GTK_WINDOW(fe->window), req.width, req.height);
1750 fe->drawing_area_shrink_pending = TRUE;
1751 try_shrink_drawing_area(fe);
1754 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
1756 frontend *fe = (frontend *)data;
1757 game_params *params =
1758 (game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
1760 if (fe->preset_threaded ||
1761 (GTK_IS_CHECK_MENU_ITEM(menuitem) &&
1762 !gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
1764 midend_set_params(fe->me, params);
1765 midend_new_game(fe->me);
1770 GdkAtom compound_text_atom, utf8_string_atom;
1771 int paste_initialised = FALSE;
1773 static void set_selection(frontend *fe, GdkAtom selection)
1775 if (!paste_initialised) {
1776 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
1777 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
1778 paste_initialised = TRUE;
1782 * For this simple application we can safely assume that the
1783 * data passed to this function is pure ASCII, which means we
1784 * can return precisely the same stuff for types STRING,
1785 * COMPOUND_TEXT or UTF8_STRING.
1788 if (gtk_selection_owner_set(fe->area, selection, CurrentTime)) {
1789 gtk_selection_clear_targets(fe->area, selection);
1790 gtk_selection_add_target(fe->area, selection,
1791 GDK_SELECTION_TYPE_STRING, 1);
1792 gtk_selection_add_target(fe->area, selection, compound_text_atom, 1);
1793 gtk_selection_add_target(fe->area, selection, utf8_string_atom, 1);
1797 void write_clip(frontend *fe, char *data)
1800 sfree(fe->paste_data);
1802 fe->paste_data = data;
1803 fe->paste_data_len = strlen(data);
1805 set_selection(fe, GDK_SELECTION_PRIMARY);
1806 set_selection(fe, GDK_SELECTION_CLIPBOARD);
1809 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
1810 guint info, guint time_stamp, gpointer data)
1812 frontend *fe = (frontend *)data;
1813 gtk_selection_data_set(seldata, seldata->target, 8,
1814 fe->paste_data, fe->paste_data_len);
1817 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
1820 frontend *fe = (frontend *)data;
1823 sfree(fe->paste_data);
1824 fe->paste_data = NULL;
1825 fe->paste_data_len = 0;
1829 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
1831 frontend *fe = (frontend *)data;
1834 text = midend_text_format(fe->me);
1837 write_clip(fe, text);
1845 static void filesel_ok(GtkButton *button, gpointer data)
1847 frontend *fe = (frontend *)data;
1849 gpointer filesel = gtk_object_get_data(GTK_OBJECT(button), "user-data");
1852 gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
1854 fe->filesel_name = dupstr(name);
1857 static char *file_selector(frontend *fe, char *title, int save)
1859 GtkWidget *filesel =
1860 gtk_file_selection_new(title);
1862 fe->filesel_name = NULL;
1864 gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
1866 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "user-data",
1869 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
1870 GTK_SIGNAL_FUNC(filesel_ok), fe);
1871 gtk_signal_connect_object
1872 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
1873 GTK_SIGNAL_FUNC(gtk_widget_destroy), (gpointer)filesel);
1874 gtk_signal_connect_object
1875 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button), "clicked",
1876 GTK_SIGNAL_FUNC(gtk_widget_destroy), (gpointer)filesel);
1877 gtk_signal_connect(GTK_OBJECT(filesel), "destroy",
1878 GTK_SIGNAL_FUNC(window_destroy), NULL);
1879 gtk_widget_show(filesel);
1880 gtk_window_set_transient_for(GTK_WINDOW(filesel), GTK_WINDOW(fe->window));
1883 return fe->filesel_name;
1888 static char *file_selector(frontend *fe, char *title, int save)
1890 char *filesel_name = NULL;
1892 GtkWidget *filesel =
1893 gtk_file_chooser_dialog_new(title,
1894 GTK_WINDOW(fe->window),
1895 save ? GTK_FILE_CHOOSER_ACTION_SAVE :
1896 GTK_FILE_CHOOSER_ACTION_OPEN,
1897 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
1898 save ? GTK_STOCK_SAVE : GTK_STOCK_OPEN,
1899 GTK_RESPONSE_ACCEPT,
1902 if (gtk_dialog_run(GTK_DIALOG(filesel)) == GTK_RESPONSE_ACCEPT) {
1903 const char *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(filesel));
1904 filesel_name = dupstr(name);
1907 gtk_widget_destroy(filesel);
1909 return filesel_name;
1914 struct savefile_write_ctx {
1919 static void savefile_write(void *wctx, void *buf, int len)
1921 struct savefile_write_ctx *ctx = (struct savefile_write_ctx *)wctx;
1922 if (fwrite(buf, 1, len, ctx->fp) < len)
1926 static int savefile_read(void *wctx, void *buf, int len)
1928 FILE *fp = (FILE *)wctx;
1931 ret = fread(buf, 1, len, fp);
1932 return (ret == len);
1935 static void menu_save_event(GtkMenuItem *menuitem, gpointer data)
1937 frontend *fe = (frontend *)data;
1940 name = file_selector(fe, "Enter name of game file to save", TRUE);
1945 if ((fp = fopen(name, "r")) != NULL) {
1946 char buf[256 + FILENAME_MAX];
1950 sprintf(buf, "Are you sure you want to overwrite the"
1952 FILENAME_MAX, name);
1953 if (!message_box(fe->window, "Question", buf, TRUE, MB_YESNO))
1957 fp = fopen(name, "w");
1961 error_box(fe->window, "Unable to open save file");
1966 struct savefile_write_ctx ctx;
1969 midend_serialise(fe->me, savefile_write, &ctx);
1973 sprintf(boxmsg, "Error writing save file: %.400s",
1975 error_box(fe->window, boxmsg);
1983 static void menu_load_event(GtkMenuItem *menuitem, gpointer data)
1985 frontend *fe = (frontend *)data;
1988 name = file_selector(fe, "Enter name of saved game file to load", FALSE);
1991 FILE *fp = fopen(name, "r");
1995 error_box(fe->window, "Unable to open saved game file");
1999 err = midend_deserialise(fe->me, savefile_read, fp);
2004 error_box(fe->window, err);
2013 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
2015 frontend *fe = (frontend *)data;
2018 msg = midend_solve(fe->me);
2021 error_box(fe->window, msg);
2024 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
2026 frontend *fe = (frontend *)data;
2028 midend_restart_game(fe->me);
2031 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
2033 frontend *fe = (frontend *)data;
2034 int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
2037 if (fe->preset_threaded ||
2038 (GTK_IS_CHECK_MENU_ITEM(menuitem) &&
2039 !gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
2041 changed_preset(fe); /* Put the old preset back! */
2042 if (!get_config(fe, which))
2045 midend_new_game(fe->me);
2049 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
2051 frontend *fe = (frontend *)data;
2055 sprintf(titlebuf, "About %.200s", thegame.name);
2058 "from Simon Tatham's Portable Puzzle Collection\n\n"
2059 "%.500s", thegame.name, ver);
2061 message_box(fe->window, titlebuf, textbuf, TRUE, MB_OK);
2064 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
2065 char *text, int key)
2067 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
2069 gtk_container_add(cont, menuitem);
2070 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
2071 GINT_TO_POINTER(key));
2072 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2073 GTK_SIGNAL_FUNC(menu_key_event), fe);
2074 switch (key & ~0x1F) {
2077 keyqual = GDK_CONTROL_MASK;
2081 keyqual = GDK_SHIFT_MASK;
2087 gtk_widget_add_accelerator(menuitem,
2088 "activate", fe->accelgroup,
2091 gtk_widget_show(menuitem);
2095 static void add_menu_separator(GtkContainer *cont)
2097 GtkWidget *menuitem = gtk_menu_item_new();
2098 gtk_container_add(cont, menuitem);
2099 gtk_widget_show(menuitem);
2102 enum { ARG_EITHER, ARG_SAVE, ARG_ID }; /* for argtype */
2104 static frontend *new_window(char *arg, int argtype, char **error)
2107 GtkBox *vbox, *hbox;
2108 GtkWidget *menu, *menuitem;
2113 extern char *const *const xpm_icons[];
2114 extern const int n_xpm_icons;
2116 fe = snew(frontend);
2118 fe->timer_active = FALSE;
2121 fe->me = midend_new(fe, &thegame, >k_drawing, fe);
2131 err = midend_game_id(fe->me, arg);
2133 midend_new_game(fe->me);
2135 sprintf(errbuf, "Invalid game ID: %.800s", err);
2138 fp = fopen(arg, "r");
2140 sprintf(errbuf, "Error opening file: %.800s", strerror(errno));
2142 err = midend_deserialise(fe->me, savefile_read, fp);
2144 sprintf(errbuf, "Invalid save file: %.800s", err);
2148 default /*case ARG_EITHER*/:
2150 * First try treating the argument as a game ID.
2152 err = midend_game_id(fe->me, arg);
2155 * It's a valid game ID.
2157 midend_new_game(fe->me);
2159 FILE *fp = fopen(arg, "r");
2161 sprintf(errbuf, "Supplied argument is neither a game ID (%.400s)"
2162 " nor a save file (%.400s)", err, strerror(errno));
2164 err = midend_deserialise(fe->me, savefile_read, fp);
2166 sprintf(errbuf, "%.800s", err);
2173 *error = dupstr(errbuf);
2174 midend_free(fe->me);
2180 midend_new_game(fe->me);
2185 * try_shrink_drawing_area() will do some fiddling with the
2186 * window size request (see comment in that function) after
2187 * all the bits and pieces such as the menu bar and status bar
2188 * have appeared in the puzzle window.
2190 * However, on Unity systems, the menu bar _doesn't_ appear in
2191 * the puzzle window, because the Unity shell hijacks it into
2192 * the menu bar at the very top of the screen. We therefore
2193 * try to detect that situation here, so that we don't sit
2194 * here forever waiting for a menu bar.
2196 const char prop[] = "gtk-shell-shows-menubar";
2197 GtkSettings *settings = gtk_settings_get_default();
2198 if (!g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
2200 fe->menubar_is_local = TRUE;
2203 g_object_get(gtk_settings_get_default(),
2205 (const gchar *)NULL);
2206 fe->menubar_is_local = !unity_mode;
2210 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2211 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
2213 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
2214 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
2215 gtk_widget_show(GTK_WIDGET(vbox));
2217 fe->accelgroup = gtk_accel_group_new();
2218 gtk_window_add_accel_group(GTK_WINDOW(fe->window), fe->accelgroup);
2220 hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
2221 gtk_box_pack_start(vbox, GTK_WIDGET(hbox), FALSE, FALSE, 0);
2222 gtk_widget_show(GTK_WIDGET(hbox));
2224 fe->menubar = gtk_menu_bar_new();
2225 gtk_box_pack_start(hbox, fe->menubar, TRUE, TRUE, 0);
2226 gtk_widget_show(fe->menubar);
2228 menuitem = gtk_menu_item_new_with_mnemonic("_Game");
2229 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2230 gtk_widget_show(menuitem);
2232 menu = gtk_menu_new();
2233 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
2235 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
2237 menuitem = gtk_menu_item_new_with_label("Restart");
2238 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2239 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2240 GTK_SIGNAL_FUNC(menu_restart_event), fe);
2241 gtk_widget_show(menuitem);
2243 menuitem = gtk_menu_item_new_with_label("Specific...");
2244 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
2245 GINT_TO_POINTER(CFG_DESC));
2246 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2247 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2248 GTK_SIGNAL_FUNC(menu_config_event), fe);
2249 gtk_widget_show(menuitem);
2251 menuitem = gtk_menu_item_new_with_label("Random Seed...");
2252 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
2253 GINT_TO_POINTER(CFG_SEED));
2254 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2255 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2256 GTK_SIGNAL_FUNC(menu_config_event), fe);
2257 gtk_widget_show(menuitem);
2259 fe->preset_radio = NULL;
2260 fe->preset_custom = NULL;
2261 fe->n_preset_menu_items = 0;
2262 fe->preset_threaded = FALSE;
2263 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
2267 menuitem = gtk_menu_item_new_with_mnemonic("_Type");
2268 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2269 gtk_widget_show(menuitem);
2271 submenu = gtk_menu_new();
2272 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
2274 for (i = 0; i < n; i++) {
2276 game_params *params;
2278 midend_fetch_preset(fe->me, i, &name, ¶ms);
2281 gtk_radio_menu_item_new_with_label(fe->preset_radio, name);
2283 gtk_radio_menu_item_group(GTK_RADIO_MENU_ITEM(menuitem));
2284 fe->n_preset_menu_items++;
2285 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
2286 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
2287 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2288 GTK_SIGNAL_FUNC(menu_preset_event), fe);
2289 gtk_widget_show(menuitem);
2292 if (thegame.can_configure) {
2293 menuitem = fe->preset_custom =
2294 gtk_radio_menu_item_new_with_label(fe->preset_radio,
2297 gtk_radio_menu_item_group(GTK_RADIO_MENU_ITEM(menuitem));
2298 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
2299 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
2300 GINT_TO_POINTER(CFG_SETTINGS));
2301 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2302 GTK_SIGNAL_FUNC(menu_config_event), fe);
2303 gtk_widget_show(menuitem);
2308 add_menu_separator(GTK_CONTAINER(menu));
2309 menuitem = gtk_menu_item_new_with_label("Load...");
2310 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2311 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2312 GTK_SIGNAL_FUNC(menu_load_event), fe);
2313 gtk_widget_show(menuitem);
2314 menuitem = gtk_menu_item_new_with_label("Save...");
2315 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2316 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2317 GTK_SIGNAL_FUNC(menu_save_event), fe);
2318 gtk_widget_show(menuitem);
2319 #ifndef STYLUS_BASED
2320 add_menu_separator(GTK_CONTAINER(menu));
2321 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
2322 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", 'r');
2324 if (thegame.can_format_as_text_ever) {
2325 add_menu_separator(GTK_CONTAINER(menu));
2326 menuitem = gtk_menu_item_new_with_label("Copy");
2327 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2328 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2329 GTK_SIGNAL_FUNC(menu_copy_event), fe);
2330 gtk_widget_show(menuitem);
2331 fe->copy_menu_item = menuitem;
2333 fe->copy_menu_item = NULL;
2335 if (thegame.can_solve) {
2336 add_menu_separator(GTK_CONTAINER(menu));
2337 menuitem = gtk_menu_item_new_with_label("Solve");
2338 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2339 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2340 GTK_SIGNAL_FUNC(menu_solve_event), fe);
2341 gtk_widget_show(menuitem);
2343 add_menu_separator(GTK_CONTAINER(menu));
2344 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
2346 menuitem = gtk_menu_item_new_with_mnemonic("_Help");
2347 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2348 gtk_widget_show(menuitem);
2350 menu = gtk_menu_new();
2351 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
2353 menuitem = gtk_menu_item_new_with_label("About");
2354 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2355 gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
2356 GTK_SIGNAL_FUNC(menu_about_event), fe);
2357 gtk_widget_show(menuitem);
2360 menuitem=gtk_button_new_with_mnemonic("_Redo");
2361 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
2362 GINT_TO_POINTER((int)('r')));
2363 gtk_signal_connect(GTK_OBJECT(menuitem), "clicked",
2364 GTK_SIGNAL_FUNC(menu_key_event), fe);
2365 gtk_box_pack_end(hbox, menuitem, FALSE, FALSE, 0);
2366 gtk_widget_show(menuitem);
2368 menuitem=gtk_button_new_with_mnemonic("_Undo");
2369 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
2370 GINT_TO_POINTER((int)('u')));
2371 gtk_signal_connect(GTK_OBJECT(menuitem), "clicked",
2372 GTK_SIGNAL_FUNC(menu_key_event), fe);
2373 gtk_box_pack_end(hbox, menuitem, FALSE, FALSE, 0);
2374 gtk_widget_show(menuitem);
2376 if (thegame.flags & REQUIRE_NUMPAD) {
2377 hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
2378 gtk_box_pack_start(vbox, GTK_WIDGET(hbox), FALSE, FALSE, 0);
2379 gtk_widget_show(GTK_WIDGET(hbox));
2383 for(errbuf[0]='0';errbuf[0]<='9';errbuf[0]++) {
2384 menuitem=gtk_button_new_with_label(errbuf);
2385 gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
2386 GINT_TO_POINTER((int)(errbuf[0])));
2387 gtk_signal_connect(GTK_OBJECT(menuitem), "clicked",
2388 GTK_SIGNAL_FUNC(menu_key_event), fe);
2389 gtk_box_pack_start(hbox, menuitem, TRUE, TRUE, 0);
2390 gtk_widget_show(menuitem);
2393 #endif /* STYLUS_BASED */
2397 snaffle_colours(fe);
2399 if (midend_wants_statusbar(fe->me)) {
2400 GtkWidget *viewport;
2403 viewport = gtk_viewport_new(NULL, NULL);
2404 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
2405 fe->statusbar = gtk_statusbar_new();
2406 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
2407 gtk_widget_show(viewport);
2408 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
2409 gtk_widget_show(fe->statusbar);
2410 fe->statusctx = gtk_statusbar_get_context_id
2411 (GTK_STATUSBAR(fe->statusbar), "game");
2412 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
2414 gtk_widget_size_request(fe->statusbar, &req);
2416 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
2418 gtk_widget_set_usize(viewport, -1, req.height);
2420 fe->statusbar = NULL;
2422 fe->area = gtk_drawing_area_new();
2423 #if GTK_CHECK_VERSION(2,0,0)
2424 GTK_WIDGET_UNSET_FLAGS(fe->area, GTK_DOUBLE_BUFFERED);
2426 get_size(fe, &x, &y);
2427 fe->drawing_area_shrink_pending = FALSE;
2428 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
2432 gtk_box_pack_end(vbox, fe->area, TRUE, TRUE, 0);
2434 clear_backing_store(fe);
2436 fe->nfonts = fe->fontsize = 0;
2438 fe->paste_data = NULL;
2439 fe->paste_data_len = 0;
2441 gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
2442 GTK_SIGNAL_FUNC(destroy), fe);
2443 gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
2444 GTK_SIGNAL_FUNC(key_event), fe);
2445 gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
2446 GTK_SIGNAL_FUNC(button_event), fe);
2447 gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
2448 GTK_SIGNAL_FUNC(button_event), fe);
2449 gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
2450 GTK_SIGNAL_FUNC(motion_event), fe);
2451 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
2452 GTK_SIGNAL_FUNC(selection_get), fe);
2453 gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
2454 GTK_SIGNAL_FUNC(selection_clear), fe);
2455 gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
2456 GTK_SIGNAL_FUNC(expose_area), fe);
2457 gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
2458 GTK_SIGNAL_FUNC(map_window), fe);
2459 gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
2460 GTK_SIGNAL_FUNC(configure_area), fe);
2461 gtk_signal_connect(GTK_OBJECT(fe->window), "configure_event",
2462 GTK_SIGNAL_FUNC(configure_window), fe);
2464 gtk_widget_add_events(GTK_WIDGET(fe->area),
2465 GDK_BUTTON_PRESS_MASK |
2466 GDK_BUTTON_RELEASE_MASK |
2467 GDK_BUTTON_MOTION_MASK |
2468 GDK_POINTER_MOTION_HINT_MASK);
2471 gtk_widget_realize(fe->window);
2472 iconpm = gdk_pixmap_create_from_xpm_d(fe->window->window, NULL,
2473 NULL, (gchar **)xpm_icons[0]);
2474 gdk_window_set_icon(fe->window->window, NULL, iconpm, NULL);
2476 for (n = 0; n < n_xpm_icons; n++) {
2478 g_list_append(iconlist,
2479 gdk_pixbuf_new_from_xpm_data((const gchar **)
2482 gdk_window_set_icon_list(fe->window->window, iconlist);
2485 gtk_widget_show(fe->area);
2486 gtk_widget_show(fe->window);
2488 fe->drawing_area_shrink_pending = TRUE;
2489 try_shrink_drawing_area(fe);
2490 set_window_background(fe, 0);
2495 char *fgetline(FILE *fp)
2497 char *ret = snewn(512, char);
2498 int size = 512, len = 0;
2499 while (fgets(ret + len, size - len, fp)) {
2500 len += strlen(ret + len);
2501 if (ret[len-1] == '\n')
2502 break; /* got a newline, we're done */
2504 ret = sresize(ret, size, char);
2506 if (len == 0) { /* first fgets returned NULL */
2514 int main(int argc, char **argv)
2516 char *pname = argv[0];
2518 int ngenerate = 0, print = FALSE, px = 1, py = 1;
2519 int time_generation = FALSE, test_solve = FALSE, list_presets = FALSE;
2520 int soln = FALSE, colour = FALSE;
2522 float redo_proportion = 0.0F;
2523 char *savefile = NULL, *savesuffix = NULL;
2525 int argtype = ARG_EITHER;
2526 char *screenshot_file = NULL;
2527 int doing_opts = TRUE;
2533 * Command line parsing in this function is rather fiddly,
2534 * because GTK wants to have a go at argc/argv _first_ - and
2535 * yet we can't let it, because gtk_init() will bomb out if it
2536 * can't open an X display, whereas in fact we want to permit
2537 * our --generate and --print modes to run without an X
2541 * - we parse the command line ourselves, without modifying
2543 * - if we encounter an error which might plausibly be the
2544 * result of a GTK command line (i.e. not detailed errors in
2545 * particular options of ours) we store the error message
2546 * and terminate parsing.
2547 * - if we got enough out of the command line to know it
2548 * specifies a non-X mode of operation, we either display
2549 * the stored error and return failure, or if there is no
2550 * stored error we do the non-X operation and return
2552 * - otherwise, we go straight to gtk_init().
2558 if (doing_opts && !strcmp(p, "--version")) {
2559 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
2562 } else if (doing_opts && !strcmp(p, "--generate")) {
2564 ngenerate = atoi(*++av);
2566 fprintf(stderr, "%s: '--generate' expected a number\n",
2572 } else if (doing_opts && !strcmp(p, "--time-generation")) {
2573 time_generation = TRUE;
2574 } else if (doing_opts && !strcmp(p, "--test-solve")) {
2576 } else if (doing_opts && !strcmp(p, "--list-presets")) {
2577 list_presets = TRUE;
2578 } else if (doing_opts && !strcmp(p, "--save")) {
2582 fprintf(stderr, "%s: '--save' expected a filename\n",
2586 } else if (doing_opts && (!strcmp(p, "--save-suffix") ||
2587 !strcmp(p, "--savesuffix"))) {
2591 fprintf(stderr, "%s: '--save-suffix' expected a filename\n",
2595 } else if (doing_opts && !strcmp(p, "--print")) {
2596 if (!thegame.can_print) {
2597 fprintf(stderr, "%s: this game does not support printing\n",
2604 if (sscanf(dim, "%dx%d", &px, &py) != 2) {
2605 fprintf(stderr, "%s: unable to parse argument '%s' to "
2606 "'--print'\n", pname, dim);
2612 } else if (doing_opts && !strcmp(p, "--scale")) {
2614 scale = atof(*++av);
2616 fprintf(stderr, "%s: no argument supplied to '--scale'\n",
2620 } else if (doing_opts && !strcmp(p, "--redo")) {
2622 * This is an internal option which I don't expect
2623 * users to have any particular use for. The effect of
2624 * --redo is that once the game has been loaded and
2625 * initialised, the next move in the redo chain is
2626 * replayed, and the game screen is redrawn part way
2627 * through the making of the move. This is only
2628 * meaningful if there _is_ a next move in the redo
2629 * chain, which means in turn that this option is only
2630 * useful if you're also passing a save file on the
2633 * This option is used by the script which generates
2634 * the puzzle icons and website screenshots, and I
2635 * don't imagine it's useful for anything else.
2636 * (Unless, I suppose, users don't like my screenshots
2637 * and want to generate their own in the same way for
2638 * some repackaged version of the puzzles.)
2641 redo_proportion = atof(*++av);
2643 fprintf(stderr, "%s: no argument supplied to '--redo'\n",
2647 } else if (doing_opts && !strcmp(p, "--screenshot")) {
2649 * Another internal option for the icon building
2650 * script. This causes a screenshot of the central
2651 * drawing area (i.e. not including the menu bar or
2652 * status bar) to be saved to a PNG file once the
2653 * window has been drawn, and then the application
2654 * quits immediately.
2657 screenshot_file = *++av;
2659 fprintf(stderr, "%s: no argument supplied to '--screenshot'\n",
2663 } else if (doing_opts && (!strcmp(p, "--with-solutions") ||
2664 !strcmp(p, "--with-solution") ||
2665 !strcmp(p, "--with-solns") ||
2666 !strcmp(p, "--with-soln") ||
2667 !strcmp(p, "--solutions") ||
2668 !strcmp(p, "--solution") ||
2669 !strcmp(p, "--solns") ||
2670 !strcmp(p, "--soln"))) {
2672 } else if (doing_opts && !strcmp(p, "--colour")) {
2673 if (!thegame.can_print_in_colour) {
2674 fprintf(stderr, "%s: this game does not support colour"
2675 " printing\n", pname);
2679 } else if (doing_opts && !strcmp(p, "--load")) {
2681 } else if (doing_opts && !strcmp(p, "--game")) {
2683 } else if (doing_opts && !strcmp(p, "--")) {
2685 } else if (!doing_opts || p[0] != '-') {
2687 fprintf(stderr, "%s: more than one argument supplied\n",
2693 sprintf(errbuf, "%.100s: unrecognised option '%.100s'\n",
2700 * Special standalone mode for generating puzzle IDs on the
2701 * command line. Useful for generating puzzles to be printed
2702 * out and solved offline (for puzzles where that even makes
2703 * sense - Solo, for example, is a lot more pencil-and-paper
2704 * friendly than Twiddle!)
2708 * <puzzle-name> --generate [<n> [<params>]]
2710 * <n>, if present, is the number of puzzle IDs to generate.
2711 * <params>, if present, is the same type of parameter string
2712 * you would pass to the puzzle when running it in GUI mode,
2713 * including optional extras such as the expansion factor in
2714 * Rectangles and the difficulty level in Solo.
2716 * If you specify <params>, you must also specify <n> (although
2717 * you may specify it to be 1). Sorry; that was the
2718 * simplest-to-parse command-line syntax I came up with.
2720 if (ngenerate > 0 || print || savefile || savesuffix) {
2724 document *doc = NULL;
2727 * If we're in this branch, we should display any pending
2728 * error message from the command line, since GTK isn't going
2729 * to take another crack at making sense of it.
2732 fputs(errbuf, stderr);
2738 me = midend_new(NULL, &thegame, NULL, NULL);
2741 if (savefile && !savesuffix)
2743 if (!savefile && savesuffix)
2747 doc = document_new(px, py, scale);
2750 * In this loop, we either generate a game ID or read one
2751 * from stdin depending on whether we're in generate mode;
2752 * then we either write it to stdout or print it, depending
2753 * on whether we're in print mode. Thus, this loop handles
2754 * generate-to-stdout, print-from-stdin and generate-and-
2755 * immediately-print modes.
2757 * (It could also handle a copy-stdin-to-stdout mode,
2758 * although there's currently no combination of options
2759 * which will cause this loop to be activated in that mode.
2760 * It wouldn't be _entirely_ pointless, though, because
2761 * stdin could contain bare params strings or random-seed
2762 * IDs, and stdout would contain nothing but fully
2763 * generated descriptive game IDs.)
2765 while (ngenerate == 0 || i < n) {
2766 char *pstr, *err, *seed;
2767 struct rusage before, after;
2769 if (ngenerate == 0) {
2770 pstr = fgetline(stdin);
2773 pstr[strcspn(pstr, "\r\n")] = '\0';
2776 pstr = snewn(strlen(arg) + 40, char);
2779 if (i > 0 && strchr(arg, '#'))
2780 sprintf(pstr + strlen(pstr), "-%d", i);
2786 err = midend_game_id(me, pstr);
2788 fprintf(stderr, "%s: error parsing '%s': %s\n",
2794 if (time_generation)
2795 getrusage(RUSAGE_SELF, &before);
2797 midend_new_game(me);
2799 seed = midend_get_random_seed(me);
2801 if (time_generation) {
2804 getrusage(RUSAGE_SELF, &after);
2806 elapsed = (after.ru_utime.tv_sec -
2807 before.ru_utime.tv_sec);
2808 elapsed += (after.ru_utime.tv_usec -
2809 before.ru_utime.tv_usec) / 1000000.0;
2811 printf("%s %s: %.6f\n", thegame.name, seed, elapsed);
2814 if (test_solve && thegame.can_solve) {
2816 * Now destroy the aux_info in the midend, by means of
2817 * re-entering the same game id, and then try to solve
2820 char *game_id, *err;
2822 game_id = midend_get_game_id(me);
2823 err = midend_game_id(me, game_id);
2825 fprintf(stderr, "%s %s: game id re-entry error: %s\n",
2826 thegame.name, seed, err);
2829 midend_new_game(me);
2832 err = midend_solve(me);
2834 * If the solve operation returned the error "Solution
2835 * not known for this puzzle", that's OK, because that
2836 * just means it's a puzzle for which we don't have an
2837 * algorithmic solver and hence can't solve it without
2838 * the aux_info, e.g. Netslide. Any other error is a
2841 if (err && strcmp(err, "Solution not known for this puzzle")) {
2842 fprintf(stderr, "%s %s: solve error: %s\n",
2843 thegame.name, seed, err);
2852 err = midend_print_puzzle(me, doc, soln);
2854 fprintf(stderr, "%s: error in printing: %s\n", pname, err);
2859 struct savefile_write_ctx ctx;
2860 char *realname = snewn(40 + strlen(savefile) +
2861 strlen(savesuffix), char);
2862 sprintf(realname, "%s%d%s", savefile, i, savesuffix);
2865 char *err = midend_solve(me);
2867 fprintf(stderr, "%s: unable to show solution: %s\n",
2873 ctx.fp = fopen(realname, "w");
2875 fprintf(stderr, "%s: open: %s\n", realname,
2880 midend_serialise(me, savefile_write, &ctx);
2882 fprintf(stderr, "%s: write: %s\n", realname,
2883 strerror(ctx.error));
2886 if (fclose(ctx.fp)) {
2887 fprintf(stderr, "%s: close: %s\n", realname,
2893 if (!doc && !savefile && !time_generation) {
2894 id = midend_get_game_id(me);
2903 psdata *ps = ps_init(stdout, colour);
2904 document_print(doc, ps_drawing_api(ps));
2912 } else if (list_presets) {
2914 * Another specialist mode which causes the puzzle to list the
2915 * game_params strings for all its preset configurations.
2920 me = midend_new(NULL, &thegame, NULL, NULL);
2921 npresets = midend_num_presets(me);
2923 for (i = 0; i < npresets; i++) {
2924 game_params *params;
2925 char *name, *paramstr;
2927 midend_fetch_preset(me, i, &name, ¶ms);
2928 paramstr = thegame.encode_params(params, TRUE);
2930 printf("%s %s\n", paramstr, name);
2939 gtk_init(&argc, &argv);
2941 fe = new_window(arg, argtype, &error);
2944 fprintf(stderr, "%s: %s\n", pname, error);
2948 if (screenshot_file) {
2950 * Some puzzles will not redraw their entire area if
2951 * given a partially completed animation, which means
2952 * we must redraw now and _then_ redraw again after
2953 * freezing the move timer.
2955 midend_force_redraw(fe->me);
2958 if (redo_proportion) {
2960 midend_process_key(fe->me, 0, 0, 'r');
2961 /* And freeze the timer at the specified position. */
2962 midend_freeze_timer(fe->me, redo_proportion);
2965 if (screenshot_file) {
2966 save_screenshot_png(fe, screenshot_file);