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)
42 # if GTK_CHECK_VERSION(3,0,0) || defined(GDK_DISABLE_DEPRECATED)
43 # define USE_CAIRO_WITHOUT_PIXMAP
47 #if GTK_CHECK_VERSION(3,0,0)
48 /* GTK 3 has retired stock button labels */
49 #define LABEL_OK "_OK"
50 #define LABEL_CANCEL "_Cancel"
51 #define LABEL_NO "_No"
52 #define LABEL_YES "_Yes"
53 #define LABEL_SAVE "_Save"
54 #define LABEL_OPEN "_Open"
55 #define gtk_button_new_with_our_label gtk_button_new_with_mnemonic
57 #define LABEL_OK GTK_STOCK_OK
58 #define LABEL_CANCEL GTK_STOCK_CANCEL
59 #define LABEL_NO GTK_STOCK_NO
60 #define LABEL_YES GTK_STOCK_YES
61 #define LABEL_SAVE GTK_STOCK_SAVE
62 #define LABEL_OPEN GTK_STOCK_OPEN
63 #define gtk_button_new_with_our_label gtk_button_new_from_stock
66 /* #undef USE_CAIRO */
67 /* #define NO_THICK_LINE */
69 static FILE *debug_fp = NULL;
74 debug_fp = fopen("debug.log", "w");
85 void debug_printf(char *fmt, ...)
91 vsprintf(buf, fmt, ap);
97 /* ----------------------------------------------------------------------
98 * Error reporting functions used elsewhere.
101 void fatal(char *fmt, ...)
105 fprintf(stderr, "fatal error: ");
108 vfprintf(stderr, fmt, ap);
111 fprintf(stderr, "\n");
115 /* ----------------------------------------------------------------------
116 * GTK front end to puzzles.
119 static void changed_preset(frontend *fe);
123 PangoFontDescription *desc;
132 * This structure holds all the data relevant to a single window.
133 * In principle this would allow us to open multiple independent
134 * puzzle windows, although I can't currently see any real point in
135 * doing so. I'm just coding cleanly because there's no
136 * particularly good reason not to.
140 GtkAccelGroup *accelgroup;
142 GtkWidget *statusbar;
148 const float *colours;
150 cairo_surface_t *image;
151 #ifndef USE_CAIRO_WITHOUT_PIXMAP
154 GdkColor background; /* for painting outside puzzle area */
160 int backgroundindex; /* which of colours[] is background */
163 int bbox_l, bbox_r, bbox_u, bbox_d;
164 int timer_active, timer_id;
165 struct timeval last_time;
167 int nfonts, fontsize;
169 int cfg_which, cfgret;
173 int pw, ph; /* pixmap size (w, h are area size) */
174 int ox, oy; /* offset of pixmap in drawing area */
178 GSList *preset_radio;
179 int n_preset_menu_items;
181 GtkWidget *preset_custom;
182 GtkWidget *copy_menu_item;
183 #if !GTK_CHECK_VERSION(3,0,0)
184 int drawing_area_shrink_pending;
185 int menubar_is_local;
191 cairo_surface_t *image;
198 void get_random_seed(void **randseed, int *randseedsize)
200 struct timeval *tvp = snew(struct timeval);
201 gettimeofday(tvp, NULL);
202 *randseed = (void *)tvp;
203 *randseedsize = sizeof(struct timeval);
206 void frontend_default_colour(frontend *fe, float *output)
208 #if !GTK_CHECK_VERSION(3,0,0)
210 * Use the widget style's default background colour as the
211 * background for the puzzle drawing area.
213 GdkColor col = gtk_widget_get_style(fe->window)->bg[GTK_STATE_NORMAL];
214 output[0] = col.red / 65535.0;
215 output[1] = col.green / 65535.0;
216 output[2] = col.blue / 65535.0;
219 * GTK 3 has decided that there's no such thing as a 'default
220 * background colour' any more, because widget styles might set
221 * the background to something more complicated like a background
222 * image. We don't want to get into overlaying our entire puzzle
223 * on an arbitrary background image, so we'll just make up a
224 * reasonable shade of grey.
226 output[0] = output[1] = output[2] = 0.9F;
230 void gtk_status_bar(void *handle, char *text)
232 frontend *fe = (frontend *)handle;
234 assert(fe->statusbar);
236 gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
237 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, text);
240 /* ----------------------------------------------------------------------
241 * Cairo drawing functions.
246 static void setup_drawing(frontend *fe)
248 fe->cr = cairo_create(fe->image);
249 cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_GRAY);
250 cairo_set_line_width(fe->cr, 1.0);
251 cairo_set_line_cap(fe->cr, CAIRO_LINE_CAP_SQUARE);
252 cairo_set_line_join(fe->cr, CAIRO_LINE_JOIN_ROUND);
255 static void teardown_drawing(frontend *fe)
257 cairo_destroy(fe->cr);
260 #ifndef USE_CAIRO_WITHOUT_PIXMAP
262 cairo_t *cr = gdk_cairo_create(fe->pixmap);
263 cairo_set_source_surface(cr, fe->image, 0, 0);
267 fe->bbox_r - fe->bbox_l + 2,
268 fe->bbox_d - fe->bbox_u + 2);
275 static void snaffle_colours(frontend *fe)
277 fe->colours = midend_colours(fe->me, &fe->ncolours);
280 static void set_colour(frontend *fe, int colour)
282 cairo_set_source_rgb(fe->cr,
283 fe->colours[3*colour + 0],
284 fe->colours[3*colour + 1],
285 fe->colours[3*colour + 2]);
288 static void set_window_background(frontend *fe, int colour)
290 #if GTK_CHECK_VERSION(3,0,0)
292 rgba.red = fe->colours[3*colour + 0];
293 rgba.green = fe->colours[3*colour + 1];
294 rgba.blue = fe->colours[3*colour + 2];
296 gdk_window_set_background_rgba(gtk_widget_get_window(fe->area), &rgba);
297 gdk_window_set_background_rgba(gtk_widget_get_window(fe->window), &rgba);
301 colmap = gdk_colormap_get_system();
302 fe->background.red = fe->colours[3*colour + 0] * 65535;
303 fe->background.green = fe->colours[3*colour + 1] * 65535;
304 fe->background.blue = fe->colours[3*colour + 2] * 65535;
305 if (!gdk_colormap_alloc_color(colmap, &fe->background, FALSE, FALSE)) {
306 g_error("couldn't allocate background (#%02x%02x%02x)\n",
307 fe->background.red >> 8, fe->background.green >> 8,
308 fe->background.blue >> 8);
310 gdk_window_set_background(gtk_widget_get_window(fe->area),
312 gdk_window_set_background(gtk_widget_get_window(fe->window),
317 static PangoLayout *make_pango_layout(frontend *fe)
319 return (pango_cairo_create_layout(fe->cr));
322 static void draw_pango_layout(frontend *fe, PangoLayout *layout,
325 cairo_move_to(fe->cr, x, y);
326 pango_cairo_show_layout(fe->cr, layout);
329 static void save_screenshot_png(frontend *fe, const char *screenshot_file)
331 cairo_surface_write_to_png(fe->image, screenshot_file);
334 static void do_clip(frontend *fe, int x, int y, int w, int h)
336 cairo_new_path(fe->cr);
337 cairo_rectangle(fe->cr, x, y, w, h);
341 static void do_unclip(frontend *fe)
343 cairo_reset_clip(fe->cr);
346 static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
349 cairo_new_path(fe->cr);
350 cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_NONE);
351 cairo_rectangle(fe->cr, x, y, w, h);
353 cairo_restore(fe->cr);
356 static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
358 cairo_new_path(fe->cr);
359 cairo_move_to(fe->cr, x1 + 0.5, y1 + 0.5);
360 cairo_line_to(fe->cr, x2 + 0.5, y2 + 0.5);
361 cairo_stroke(fe->cr);
364 static void do_draw_thick_line(frontend *fe, float thickness,
365 float x1, float y1, float x2, float y2)
368 cairo_set_line_width(fe->cr, thickness);
369 cairo_new_path(fe->cr);
370 cairo_move_to(fe->cr, x1, y1);
371 cairo_line_to(fe->cr, x2, y2);
372 cairo_stroke(fe->cr);
373 cairo_restore(fe->cr);
376 static void do_draw_poly(frontend *fe, int *coords, int npoints,
377 int fillcolour, int outlinecolour)
381 cairo_new_path(fe->cr);
382 for (i = 0; i < npoints; i++)
383 cairo_line_to(fe->cr, coords[i*2] + 0.5, coords[i*2 + 1] + 0.5);
384 cairo_close_path(fe->cr);
385 if (fillcolour >= 0) {
386 set_colour(fe, fillcolour);
387 cairo_fill_preserve(fe->cr);
389 assert(outlinecolour >= 0);
390 set_colour(fe, outlinecolour);
391 cairo_stroke(fe->cr);
394 static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
395 int fillcolour, int outlinecolour)
397 cairo_new_path(fe->cr);
398 cairo_arc(fe->cr, cx + 0.5, cy + 0.5, radius, 0, 2*PI);
399 cairo_close_path(fe->cr); /* Just in case... */
400 if (fillcolour >= 0) {
401 set_colour(fe, fillcolour);
402 cairo_fill_preserve(fe->cr);
404 assert(outlinecolour >= 0);
405 set_colour(fe, outlinecolour);
406 cairo_stroke(fe->cr);
409 static void setup_blitter(blitter *bl, int w, int h)
411 bl->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24, w, h);
414 static void teardown_blitter(blitter *bl)
416 cairo_surface_destroy(bl->image);
419 static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
421 cairo_t *cr = cairo_create(bl->image);
423 cairo_set_source_surface(cr, fe->image, -x, -y);
428 static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
430 cairo_set_source_surface(fe->cr, bl->image, x, y);
434 static void clear_backing_store(frontend *fe)
439 static void wipe_and_destroy_cairo(frontend *fe, cairo_t *cr)
441 cairo_set_source_rgb(cr, fe->colours[0], fe->colours[1], fe->colours[2]);
446 static void setup_backing_store(frontend *fe)
448 #ifndef USE_CAIRO_WITHOUT_PIXMAP
449 fe->pixmap = gdk_pixmap_new(gtk_widget_get_window(fe->area),
452 fe->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
455 wipe_and_destroy_cairo(fe, cairo_create(fe->image));
456 #ifndef USE_CAIRO_WITHOUT_PIXMAP
457 wipe_and_destroy_cairo(fe, gdk_cairo_create(fe->pixmap));
459 wipe_and_destroy_cairo(fe, gdk_cairo_create
460 (gtk_widget_get_window(fe->area)));
463 static int backing_store_ok(frontend *fe)
465 return (!!fe->image);
468 static void teardown_backing_store(frontend *fe)
470 cairo_surface_destroy(fe->image);
471 #ifndef USE_CAIRO_WITHOUT_PIXMAP
472 gdk_pixmap_unref(fe->pixmap);
479 /* ----------------------------------------------------------------------
480 * GDK drawing functions.
485 static void setup_drawing(frontend *fe)
487 fe->gc = gdk_gc_new(fe->area->window);
490 static void teardown_drawing(frontend *fe)
492 gdk_gc_unref(fe->gc);
496 static void snaffle_colours(frontend *fe)
502 fe->colmap = gdk_colormap_get_system();
503 colours = midend_colours(fe->me, &ncolours);
504 fe->ncolours = ncolours;
505 fe->colours = snewn(ncolours, GdkColor);
506 for (i = 0; i < ncolours; i++) {
507 fe->colours[i].red = colours[i*3] * 0xFFFF;
508 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
509 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
511 success = snewn(ncolours, gboolean);
512 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
513 FALSE, FALSE, success);
514 for (i = 0; i < ncolours; i++) {
516 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
517 i, fe->colours[i].red >> 8,
518 fe->colours[i].green >> 8,
519 fe->colours[i].blue >> 8);
524 static void set_window_background(frontend *fe, int colour)
526 fe->backgroundindex = colour;
527 gdk_window_set_background(fe->area->window, &fe->colours[colour]);
528 gdk_window_set_background(fe->window->window, &fe->colours[colour]);
531 static void set_colour(frontend *fe, int colour)
533 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
537 static PangoLayout *make_pango_layout(frontend *fe)
539 return (pango_layout_new(gtk_widget_get_pango_context(fe->area)));
542 static void draw_pango_layout(frontend *fe, PangoLayout *layout,
545 gdk_draw_layout(fe->pixmap, fe->gc, x, y, layout);
549 static void save_screenshot_png(frontend *fe, const char *screenshot_file)
552 GError *gerror = NULL;
554 midend_redraw(fe->me);
556 pb = gdk_pixbuf_get_from_drawable(NULL, fe->pixmap,
557 NULL, 0, 0, 0, 0, -1, -1);
558 gdk_pixbuf_save(pb, screenshot_file, "png", &gerror, NULL);
561 static void do_clip(frontend *fe, int x, int y, int w, int h)
569 gdk_gc_set_clip_rectangle(fe->gc, &rect);
572 static void do_unclip(frontend *fe)
580 gdk_gc_set_clip_rectangle(fe->gc, &rect);
583 static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
585 gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
588 static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
590 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
593 static void do_draw_thick_line(frontend *fe, float thickness,
594 float x1, float y1, float x2, float y2)
598 gdk_gc_get_values(fe->gc, &save);
599 gdk_gc_set_line_attributes(fe->gc,
604 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
605 gdk_gc_set_line_attributes(fe->gc,
612 static void do_draw_poly(frontend *fe, int *coords, int npoints,
613 int fillcolour, int outlinecolour)
615 GdkPoint *points = snewn(npoints, GdkPoint);
618 for (i = 0; i < npoints; i++) {
619 points[i].x = coords[i*2];
620 points[i].y = coords[i*2+1];
623 if (fillcolour >= 0) {
624 set_colour(fe, fillcolour);
625 gdk_draw_polygon(fe->pixmap, fe->gc, TRUE, points, npoints);
627 assert(outlinecolour >= 0);
628 set_colour(fe, outlinecolour);
631 * In principle we ought to be able to use gdk_draw_polygon for
632 * the outline as well. In fact, it turns out to interact badly
633 * with a clipping region, for no terribly obvious reason, so I
634 * draw the outline as a sequence of lines instead.
636 for (i = 0; i < npoints; i++)
637 gdk_draw_line(fe->pixmap, fe->gc,
638 points[i].x, points[i].y,
639 points[(i+1)%npoints].x, points[(i+1)%npoints].y);
644 static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
645 int fillcolour, int outlinecolour)
647 if (fillcolour >= 0) {
648 set_colour(fe, fillcolour);
649 gdk_draw_arc(fe->pixmap, fe->gc, TRUE,
650 cx - radius, cy - radius,
651 2 * radius, 2 * radius, 0, 360 * 64);
654 assert(outlinecolour >= 0);
655 set_colour(fe, outlinecolour);
656 gdk_draw_arc(fe->pixmap, fe->gc, FALSE,
657 cx - radius, cy - radius,
658 2 * radius, 2 * radius, 0, 360 * 64);
661 static void setup_blitter(blitter *bl, int w, int h)
664 * We can't create the pixmap right now, because fe->window
665 * might not yet exist. So we just cache w and h and create it
666 * during the firs call to blitter_save.
671 static void teardown_blitter(blitter *bl)
674 gdk_pixmap_unref(bl->pixmap);
677 static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
680 bl->pixmap = gdk_pixmap_new(fe->area->window, bl->w, bl->h, -1);
681 gdk_draw_pixmap(bl->pixmap,
682 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
684 x, y, 0, 0, bl->w, bl->h);
687 static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
690 gdk_draw_pixmap(fe->pixmap,
691 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
693 0, 0, x, y, bl->w, bl->h);
696 static void clear_backing_store(frontend *fe)
701 static void setup_backing_store(frontend *fe)
705 fe->pixmap = gdk_pixmap_new(fe->area->window, fe->pw, fe->ph, -1);
707 gc = gdk_gc_new(fe->area->window);
708 gdk_gc_set_foreground(gc, &fe->colours[0]);
709 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->pw, fe->ph);
710 gdk_draw_rectangle(fe->area->window, gc, 1, 0, 0, fe->w, fe->h);
714 static int backing_store_ok(frontend *fe)
716 return (!!fe->pixmap);
719 static void teardown_backing_store(frontend *fe)
721 gdk_pixmap_unref(fe->pixmap);
727 #ifndef USE_CAIRO_WITHOUT_PIXMAP
728 static void repaint_rectangle(frontend *fe, GtkWidget *widget,
729 int x, int y, int w, int h)
731 GdkGC *gc = gdk_gc_new(gtk_widget_get_window(widget));
733 gdk_gc_set_foreground(gc, &fe->background);
735 gdk_gc_set_foreground(gc, &fe->colours[fe->backgroundindex]);
738 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
739 TRUE, x, y, fe->ox - x, h);
744 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
745 TRUE, x, y, w, fe->oy - y);
750 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
751 TRUE, x + fe->pw, y, w - fe->pw, h);
755 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
756 TRUE, x, y + fe->ph, w, h - fe->ph);
759 gdk_draw_pixmap(gtk_widget_get_window(widget), gc, fe->pixmap,
760 x - fe->ox, y - fe->oy, x, y, w, h);
765 /* ----------------------------------------------------------------------
766 * Pango font functions.
771 static void add_font(frontend *fe, int index, int fonttype, int fontsize)
774 * Use Pango to find the closest match to the requested
777 PangoFontDescription *fd;
779 fd = pango_font_description_new();
780 /* `Monospace' and `Sans' are meta-families guaranteed to exist */
781 pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
782 "Monospace" : "Sans");
783 pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
785 * I found some online Pango documentation which
786 * described a function called
787 * pango_font_description_set_absolute_size(), which is
788 * _exactly_ what I want here. Unfortunately, none of
789 * my local Pango installations have it (presumably
790 * they're too old), so I'm going to have to hack round
791 * it by figuring out the point size myself. This
792 * limits me to X and probably also breaks in later
793 * Pango installations, so ideally I should add another
794 * CHECK_VERSION type ifdef and use set_absolute_size
795 * where available. All very annoying.
797 #ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
798 pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
801 Display *d = GDK_DISPLAY();
802 int s = DefaultScreen(d);
804 (PANGO_SCALE * 72.27 / 25.4) *
805 ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
806 pango_font_description_set_size(fd, resolution * fontsize);
809 fe->fonts[index].desc = fd;
812 static void align_and_draw_text(frontend *fe,
813 int index, int align, int x, int y,
819 layout = make_pango_layout(fe);
824 pango_layout_set_font_description(layout, fe->fonts[index].desc);
825 pango_layout_set_text(layout, text, strlen(text));
826 pango_layout_get_pixel_extents(layout, NULL, &rect);
828 if (align & ALIGN_VCENTRE)
829 rect.y -= rect.height / 2;
831 rect.y -= rect.height;
833 if (align & ALIGN_HCENTRE)
834 rect.x -= rect.width / 2;
835 else if (align & ALIGN_HRIGHT)
836 rect.x -= rect.width;
838 draw_pango_layout(fe, layout, rect.x + x, rect.y + y);
840 g_object_unref(layout);
845 /* ----------------------------------------------------------------------
846 * Old-fashioned font functions.
851 static void add_font(int index, int fonttype, int fontsize)
854 * In GTK 1.2, I don't know of any plausible way to
855 * pick a suitable font, so I'm just going to be
858 fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
859 "fixed" : "variable");
862 static void align_and_draw_text(int index, int align, int x, int y,
865 int lb, rb, wid, asc, desc;
868 * Measure vertical string extents with respect to the same
871 gdk_string_extents(fe->fonts[i].font,
872 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
873 &lb, &rb, &wid, &asc, &desc);
874 if (align & ALIGN_VCENTRE)
875 y += asc - (asc+desc)/2;
880 * ... but horizontal extents with respect to the provided
881 * string. This means that multiple pieces of text centred
882 * on the same y-coordinate don't have different baselines.
884 gdk_string_extents(fe->fonts[i].font, text,
885 &lb, &rb, &wid, &asc, &desc);
887 if (align & ALIGN_HCENTRE)
889 else if (align & ALIGN_HRIGHT)
893 * Actually draw the text.
895 gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
900 /* ----------------------------------------------------------------------
901 * The exported drawing functions.
904 void gtk_start_draw(void *handle)
906 frontend *fe = (frontend *)handle;
914 void gtk_clip(void *handle, int x, int y, int w, int h)
916 frontend *fe = (frontend *)handle;
917 do_clip(fe, x, y, w, h);
920 void gtk_unclip(void *handle)
922 frontend *fe = (frontend *)handle;
926 void gtk_draw_text(void *handle, int x, int y, int fonttype, int fontsize,
927 int align, int colour, char *text)
929 frontend *fe = (frontend *)handle;
933 * Find or create the font.
935 for (i = 0; i < fe->nfonts; i++)
936 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
939 if (i == fe->nfonts) {
940 if (fe->fontsize <= fe->nfonts) {
941 fe->fontsize = fe->nfonts + 10;
942 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
947 fe->fonts[i].type = fonttype;
948 fe->fonts[i].size = fontsize;
949 add_font(fe, i, fonttype, fontsize);
955 set_colour(fe, colour);
956 align_and_draw_text(fe, i, align, x, y, text);
959 void gtk_draw_rect(void *handle, int x, int y, int w, int h, int colour)
961 frontend *fe = (frontend *)handle;
962 set_colour(fe, colour);
963 do_draw_rect(fe, x, y, w, h);
966 void gtk_draw_line(void *handle, int x1, int y1, int x2, int y2, int colour)
968 frontend *fe = (frontend *)handle;
969 set_colour(fe, colour);
970 do_draw_line(fe, x1, y1, x2, y2);
973 void gtk_draw_thick_line(void *handle, float thickness,
974 float x1, float y1, float x2, float y2, int colour)
976 frontend *fe = (frontend *)handle;
977 set_colour(fe, colour);
978 do_draw_thick_line(fe, thickness, x1, y1, x2, y2);
981 void gtk_draw_poly(void *handle, int *coords, int npoints,
982 int fillcolour, int outlinecolour)
984 frontend *fe = (frontend *)handle;
985 do_draw_poly(fe, coords, npoints, fillcolour, outlinecolour);
988 void gtk_draw_circle(void *handle, int cx, int cy, int radius,
989 int fillcolour, int outlinecolour)
991 frontend *fe = (frontend *)handle;
992 do_draw_circle(fe, cx, cy, radius, fillcolour, outlinecolour);
995 blitter *gtk_blitter_new(void *handle, int w, int h)
997 blitter *bl = snew(blitter);
998 setup_blitter(bl, w, h);
1004 void gtk_blitter_free(void *handle, blitter *bl)
1006 teardown_blitter(bl);
1010 void gtk_blitter_save(void *handle, blitter *bl, int x, int y)
1012 frontend *fe = (frontend *)handle;
1013 do_blitter_save(fe, bl, x, y);
1018 void gtk_blitter_load(void *handle, blitter *bl, int x, int y)
1020 frontend *fe = (frontend *)handle;
1021 if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
1025 do_blitter_load(fe, bl, x, y);
1028 void gtk_draw_update(void *handle, int x, int y, int w, int h)
1030 frontend *fe = (frontend *)handle;
1031 if (fe->bbox_l > x ) fe->bbox_l = x ;
1032 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
1033 if (fe->bbox_u > y ) fe->bbox_u = y ;
1034 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
1037 void gtk_end_draw(void *handle)
1039 frontend *fe = (frontend *)handle;
1041 teardown_drawing(fe);
1043 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
1044 #ifdef USE_CAIRO_WITHOUT_PIXMAP
1045 gtk_widget_queue_draw_area(fe->area,
1046 fe->bbox_l - 1 + fe->ox,
1047 fe->bbox_u - 1 + fe->oy,
1048 fe->bbox_r - fe->bbox_l + 2,
1049 fe->bbox_d - fe->bbox_u + 2);
1051 repaint_rectangle(fe, fe->area,
1052 fe->bbox_l - 1 + fe->ox,
1053 fe->bbox_u - 1 + fe->oy,
1054 fe->bbox_r - fe->bbox_l + 2,
1055 fe->bbox_d - fe->bbox_u + 2);
1061 char *gtk_text_fallback(void *handle, const char *const *strings, int nstrings)
1064 * We assume Pango can cope with any UTF-8 likely to be emitted
1067 return dupstr(strings[0]);
1071 const struct drawing_api gtk_drawing = {
1087 NULL, NULL, NULL, NULL, NULL, NULL, /* {begin,end}_{doc,page,puzzle} */
1088 NULL, NULL, /* line_width, line_dotted */
1094 #ifdef NO_THICK_LINE
1097 gtk_draw_thick_line,
1101 static void destroy(GtkWidget *widget, gpointer data)
1103 frontend *fe = (frontend *)data;
1104 deactivate_timer(fe);
1105 midend_free(fe->me);
1109 static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
1111 frontend *fe = (frontend *)data;
1113 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
1114 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
1116 if (!backing_store_ok(fe))
1119 #if !GTK_CHECK_VERSION(2,0,0)
1120 /* Gtk 1.2 passes a key event to this function even if it's also
1121 * defined as an accelerator.
1122 * Gtk 2 doesn't do this, and this function appears not to exist there. */
1123 if (fe->accelgroup &&
1124 gtk_accel_group_get_entry(fe->accelgroup,
1125 event->keyval, event->state))
1129 /* Handle mnemonics. */
1130 if (gtk_window_activate_key(GTK_WINDOW(fe->window), event))
1133 if (event->keyval == GDK_KEY_Up)
1134 keyval = shift | ctrl | CURSOR_UP;
1135 else if (event->keyval == GDK_KEY_KP_Up ||
1136 event->keyval == GDK_KEY_KP_8)
1137 keyval = MOD_NUM_KEYPAD | '8';
1138 else if (event->keyval == GDK_KEY_Down)
1139 keyval = shift | ctrl | CURSOR_DOWN;
1140 else if (event->keyval == GDK_KEY_KP_Down ||
1141 event->keyval == GDK_KEY_KP_2)
1142 keyval = MOD_NUM_KEYPAD | '2';
1143 else if (event->keyval == GDK_KEY_Left)
1144 keyval = shift | ctrl | CURSOR_LEFT;
1145 else if (event->keyval == GDK_KEY_KP_Left ||
1146 event->keyval == GDK_KEY_KP_4)
1147 keyval = MOD_NUM_KEYPAD | '4';
1148 else if (event->keyval == GDK_KEY_Right)
1149 keyval = shift | ctrl | CURSOR_RIGHT;
1150 else if (event->keyval == GDK_KEY_KP_Right ||
1151 event->keyval == GDK_KEY_KP_6)
1152 keyval = MOD_NUM_KEYPAD | '6';
1153 else if (event->keyval == GDK_KEY_KP_Home ||
1154 event->keyval == GDK_KEY_KP_7)
1155 keyval = MOD_NUM_KEYPAD | '7';
1156 else if (event->keyval == GDK_KEY_KP_End ||
1157 event->keyval == GDK_KEY_KP_1)
1158 keyval = MOD_NUM_KEYPAD | '1';
1159 else if (event->keyval == GDK_KEY_KP_Page_Up ||
1160 event->keyval == GDK_KEY_KP_9)
1161 keyval = MOD_NUM_KEYPAD | '9';
1162 else if (event->keyval == GDK_KEY_KP_Page_Down ||
1163 event->keyval == GDK_KEY_KP_3)
1164 keyval = MOD_NUM_KEYPAD | '3';
1165 else if (event->keyval == GDK_KEY_KP_Insert ||
1166 event->keyval == GDK_KEY_KP_0)
1167 keyval = MOD_NUM_KEYPAD | '0';
1168 else if (event->keyval == GDK_KEY_KP_Begin ||
1169 event->keyval == GDK_KEY_KP_5)
1170 keyval = MOD_NUM_KEYPAD | '5';
1171 else if (event->keyval == GDK_KEY_BackSpace ||
1172 event->keyval == GDK_KEY_Delete ||
1173 event->keyval == GDK_KEY_KP_Delete)
1175 else if (event->string[0] && !event->string[1])
1176 keyval = (unsigned char)event->string[0];
1181 !midend_process_key(fe->me, 0, 0, keyval))
1182 gtk_widget_destroy(fe->window);
1187 static gint button_event(GtkWidget *widget, GdkEventButton *event,
1190 frontend *fe = (frontend *)data;
1193 if (!backing_store_ok(fe))
1196 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
1199 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
1200 button = MIDDLE_BUTTON;
1201 else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
1202 button = RIGHT_BUTTON;
1203 else if (event->button == 1)
1204 button = LEFT_BUTTON;
1206 return FALSE; /* don't even know what button! */
1208 if (event->type == GDK_BUTTON_RELEASE)
1209 button += LEFT_RELEASE - LEFT_BUTTON;
1211 if (!midend_process_key(fe->me, event->x - fe->ox,
1212 event->y - fe->oy, button))
1213 gtk_widget_destroy(fe->window);
1218 static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
1221 frontend *fe = (frontend *)data;
1224 if (!backing_store_ok(fe))
1227 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
1228 button = MIDDLE_DRAG;
1229 else if (event->state & GDK_BUTTON1_MASK)
1231 else if (event->state & GDK_BUTTON3_MASK)
1232 button = RIGHT_DRAG;
1234 return FALSE; /* don't even know what button! */
1236 if (!midend_process_key(fe->me, event->x - fe->ox,
1237 event->y - fe->oy, button))
1238 gtk_widget_destroy(fe->window);
1239 #if GTK_CHECK_VERSION(2,12,0)
1240 gdk_event_request_motions(event);
1242 gdk_window_get_pointer(gtk_widget_get_window(widget), NULL, NULL, NULL);
1248 #if GTK_CHECK_VERSION(3,0,0)
1249 static gint draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
1251 frontend *fe = (frontend *)data;
1252 GdkRectangle dirtyrect;
1254 gdk_cairo_get_clip_rectangle(cr, &dirtyrect);
1255 cairo_set_source_surface(cr, fe->image, fe->ox, fe->oy);
1256 cairo_rectangle(cr, dirtyrect.x, dirtyrect.y,
1257 dirtyrect.width, dirtyrect.height);
1263 static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
1266 frontend *fe = (frontend *)data;
1268 if (backing_store_ok(fe)) {
1269 #ifdef USE_CAIRO_WITHOUT_PIXMAP
1270 cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
1271 cairo_set_source_surface(cr, fe->image, fe->ox, fe->oy);
1272 cairo_rectangle(cr, event->area.x, event->area.y,
1273 event->area.width, event->area.height);
1277 repaint_rectangle(fe, widget,
1278 event->area.x, event->area.y,
1279 event->area.width, event->area.height);
1286 static gint map_window(GtkWidget *widget, GdkEvent *event,
1289 frontend *fe = (frontend *)data;
1292 * Apparently we need to do this because otherwise the status
1293 * bar will fail to update immediately. Annoying, but there we
1296 gtk_widget_queue_draw(fe->window);
1301 static gint configure_area(GtkWidget *widget,
1302 GdkEventConfigure *event, gpointer data)
1304 frontend *fe = (frontend *)data;
1310 if (x != fe->w || y != fe->h || !backing_store_ok(fe)) {
1311 if (backing_store_ok(fe))
1312 teardown_backing_store(fe);
1316 midend_size(fe->me, &x, &y, TRUE);
1319 fe->ox = (fe->w - fe->pw) / 2;
1320 fe->oy = (fe->h - fe->ph) / 2;
1322 setup_backing_store(fe);
1325 midend_force_redraw(fe->me);
1330 static gint timer_func(gpointer data)
1332 frontend *fe = (frontend *)data;
1334 if (fe->timer_active) {
1337 gettimeofday(&now, NULL);
1338 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
1339 (now.tv_sec - fe->last_time.tv_sec));
1340 midend_timer(fe->me, elapsed); /* may clear timer_active */
1341 fe->last_time = now;
1344 return fe->timer_active;
1347 void deactivate_timer(frontend *fe)
1350 return; /* can happen due to --generate */
1351 if (fe->timer_active)
1352 g_source_remove(fe->timer_id);
1353 fe->timer_active = FALSE;
1356 void activate_timer(frontend *fe)
1359 return; /* can happen due to --generate */
1360 if (!fe->timer_active) {
1361 fe->timer_id = g_timeout_add(20, timer_func, fe);
1362 gettimeofday(&fe->last_time, NULL);
1364 fe->timer_active = TRUE;
1367 static void window_destroy(GtkWidget *widget, gpointer data)
1372 static void msgbox_button_clicked(GtkButton *button, gpointer data)
1374 GtkWidget *window = GTK_WIDGET(data);
1377 ip = (int *)g_object_get_data(G_OBJECT(window), "user-data");
1378 v = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "user-data"));
1381 gtk_widget_destroy(GTK_WIDGET(data));
1384 static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
1386 GObject *cancelbutton = G_OBJECT(data);
1389 * `Escape' effectively clicks the cancel button
1391 if (event->keyval == GDK_KEY_Escape) {
1392 g_signal_emit_by_name(cancelbutton, "clicked");
1399 enum { MB_OK, MB_YESNO };
1401 int message_box(GtkWidget *parent, char *title, char *msg, int centre,
1404 GtkWidget *window, *hbox, *text, *button;
1408 window = gtk_dialog_new();
1409 text = gtk_label_new(msg);
1410 gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
1411 hbox = gtk_hbox_new(FALSE, 0);
1412 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
1414 (GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(window))),
1415 hbox, FALSE, FALSE, 20);
1416 gtk_widget_show(text);
1417 gtk_widget_show(hbox);
1418 gtk_window_set_title(GTK_WINDOW(window), title);
1419 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
1421 if (type == MB_OK) {
1422 titles = LABEL_OK "\0";
1425 assert(type == MB_YESNO);
1426 titles = LABEL_NO "\0" LABEL_YES "\0";
1433 button = gtk_button_new_with_our_label(titles);
1435 (GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(window))),
1436 button, FALSE, FALSE, 0);
1437 gtk_widget_show(button);
1439 gtk_widget_set_can_default(button, TRUE);
1440 gtk_window_set_default(GTK_WINDOW(window), button);
1443 g_signal_connect(G_OBJECT(window), "key_press_event",
1444 G_CALLBACK(win_key_press), button);
1446 g_signal_connect(G_OBJECT(button), "clicked",
1447 G_CALLBACK(msgbox_button_clicked), window);
1448 g_object_set_data(G_OBJECT(button), "user-data",
1449 GINT_TO_POINTER(i));
1450 titles += strlen(titles)+1;
1453 g_object_set_data(G_OBJECT(window), "user-data", &i);
1454 g_signal_connect(G_OBJECT(window), "destroy",
1455 G_CALLBACK(window_destroy), NULL);
1456 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
1457 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
1458 /* set_transient_window_pos(parent, window); */
1459 gtk_widget_show(window);
1462 return (type == MB_YESNO ? i == 1 : TRUE);
1465 void error_box(GtkWidget *parent, char *msg)
1467 message_box(parent, "Error", msg, FALSE, MB_OK);
1470 static void config_ok_button_clicked(GtkButton *button, gpointer data)
1472 frontend *fe = (frontend *)data;
1475 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
1478 error_box(fe->cfgbox, err);
1481 gtk_widget_destroy(fe->cfgbox);
1486 static void config_cancel_button_clicked(GtkButton *button, gpointer data)
1488 frontend *fe = (frontend *)data;
1490 gtk_widget_destroy(fe->cfgbox);
1493 static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
1496 * GtkEntry has a nasty habit of eating the Return key, which
1497 * is unhelpful since it doesn't actually _do_ anything with it
1498 * (it calls gtk_widget_activate, but our edit boxes never need
1499 * activating). So I catch Return before GtkEntry sees it, and
1500 * pass it straight on to the parent widget. Effect: hitting
1501 * Return in an edit box will now activate the default button
1502 * in the dialog just like it will everywhere else.
1504 if (event->keyval == GDK_KEY_Return &&
1505 gtk_widget_get_parent(widget) != NULL) {
1507 g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
1508 g_signal_emit_by_name(G_OBJECT(gtk_widget_get_parent(widget)),
1509 "key_press_event", event, &return_val);
1515 static void editbox_changed(GtkEditable *ed, gpointer data)
1517 config_item *i = (config_item *)data;
1520 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
1523 static void button_toggled(GtkToggleButton *tb, gpointer data)
1525 config_item *i = (config_item *)data;
1527 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
1530 static void droplist_sel(GtkComboBox *combo, gpointer data)
1532 config_item *i = (config_item *)data;
1534 i->ival = gtk_combo_box_get_active(combo);
1537 static int get_config(frontend *fe, int which)
1539 GtkWidget *w, *table, *cancel;
1544 fe->cfg = midend_get_config(fe->me, which, &title);
1545 fe->cfg_which = which;
1548 fe->cfgbox = gtk_dialog_new();
1549 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
1552 w = gtk_button_new_with_our_label(LABEL_CANCEL);
1554 (GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(fe->cfgbox))),
1555 w, FALSE, FALSE, 0);
1557 g_signal_connect(G_OBJECT(w), "clicked",
1558 G_CALLBACK(config_cancel_button_clicked), fe);
1561 w = gtk_button_new_with_our_label(LABEL_OK);
1563 (GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(fe->cfgbox))),
1564 w, FALSE, FALSE, 0);
1566 gtk_widget_set_can_default(w, TRUE);
1567 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
1568 g_signal_connect(G_OBJECT(w), "clicked",
1569 G_CALLBACK(config_ok_button_clicked), fe);
1571 #if GTK_CHECK_VERSION(3,0,0)
1572 table = gtk_grid_new();
1574 table = gtk_table_new(1, 2, FALSE);
1578 (GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(fe->cfgbox))),
1579 table, FALSE, FALSE, 0);
1580 gtk_widget_show(table);
1582 for (i = fe->cfg; i->type != C_END; i++) {
1583 #if !GTK_CHECK_VERSION(3,0,0)
1584 gtk_table_resize(GTK_TABLE(table), y+1, 2);
1590 * Edit box with a label beside it.
1593 w = gtk_label_new(i->name);
1594 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
1595 #if GTK_CHECK_VERSION(3,0,0)
1596 gtk_grid_attach(GTK_GRID(table), w, 0, y, 1, 1);
1598 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
1599 GTK_SHRINK | GTK_FILL,
1600 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1605 w = gtk_entry_new();
1606 #if GTK_CHECK_VERSION(3,0,0)
1607 gtk_grid_attach(GTK_GRID(table), w, 1, y, 1, 1);
1608 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
1610 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
1611 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1612 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1615 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
1616 g_signal_connect(G_OBJECT(w), "changed",
1617 G_CALLBACK(editbox_changed), i);
1618 g_signal_connect(G_OBJECT(w), "key_press_event",
1619 G_CALLBACK(editbox_key), NULL);
1628 w = gtk_check_button_new_with_label(i->name);
1629 g_signal_connect(G_OBJECT(w), "toggled",
1630 G_CALLBACK(button_toggled), i);
1631 #if GTK_CHECK_VERSION(3,0,0)
1632 gtk_grid_attach(GTK_GRID(table), w, 0, y, 2, 1);
1633 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
1635 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
1636 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1637 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1640 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
1646 * Drop-down list (GtkComboBox).
1649 w = gtk_label_new(i->name);
1650 gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
1651 #if GTK_CHECK_VERSION(3,0,0)
1652 gtk_grid_attach(GTK_GRID(table), w, 0, y, 1, 1);
1654 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
1655 GTK_SHRINK | GTK_FILL,
1656 GTK_EXPAND | GTK_SHRINK | GTK_FILL ,
1664 GtkListStore *model;
1665 GtkCellRenderer *cr;
1668 model = gtk_list_store_new(1, G_TYPE_STRING);
1675 while (*q && *q != c)
1678 name = snewn(q-p+1, char);
1679 strncpy(name, p, q-p);
1682 if (*q) q++; /* eat delimiter */
1684 gtk_list_store_append(model, &iter);
1685 gtk_list_store_set(model, &iter, 0, name, -1);
1690 w = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
1692 gtk_combo_box_set_active(GTK_COMBO_BOX(w), i->ival);
1694 cr = gtk_cell_renderer_text_new();
1695 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(w), cr, TRUE);
1696 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(w), cr,
1699 g_signal_connect(G_OBJECT(w), "changed",
1700 G_CALLBACK(droplist_sel), i);
1703 #if GTK_CHECK_VERSION(3,0,0)
1704 gtk_grid_attach(GTK_GRID(table), w, 1, y, 1, 1);
1705 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
1707 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
1708 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1709 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1719 g_signal_connect(G_OBJECT(fe->cfgbox), "destroy",
1720 G_CALLBACK(window_destroy), NULL);
1721 g_signal_connect(G_OBJECT(fe->cfgbox), "key_press_event",
1722 G_CALLBACK(win_key_press), cancel);
1723 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
1724 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
1725 GTK_WINDOW(fe->window));
1726 /* set_transient_window_pos(fe->window, fe->cfgbox); */
1727 gtk_widget_show(fe->cfgbox);
1735 static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
1737 frontend *fe = (frontend *)data;
1738 int key = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(menuitem),
1740 if (!midend_process_key(fe->me, 0, 0, key))
1741 gtk_widget_destroy(fe->window);
1744 static void get_size(frontend *fe, int *px, int *py)
1749 * Currently I don't want to make the GTK port scale large
1750 * puzzles to fit on the screen. This is because X does permit
1751 * extremely large windows and many window managers provide a
1752 * means of navigating round them, and the users I consulted
1753 * before deciding said that they'd rather have enormous puzzle
1754 * windows spanning multiple screen pages than have them
1755 * shrunk. I could change my mind later or introduce
1756 * configurability; this would be the place to do so, by
1757 * replacing the initial values of x and y with the screen
1762 midend_size(fe->me, &x, &y, FALSE);
1767 #if !GTK_CHECK_VERSION(2,0,0)
1768 #define gtk_window_resize(win, x, y) \
1769 gdk_window_resize(GTK_WIDGET(win)->window, x, y)
1773 * Called when any other code in this file has changed the
1774 * selected game parameters.
1776 static void changed_preset(frontend *fe)
1778 int n = midend_which_preset(fe->me);
1780 fe->preset_threaded = TRUE;
1781 if (n < 0 && fe->preset_custom) {
1782 gtk_check_menu_item_set_active(
1783 GTK_CHECK_MENU_ITEM(fe->preset_custom),
1786 GSList *gs = fe->preset_radio;
1787 int i = fe->n_preset_menu_items - 1 - n;
1788 if (fe->preset_custom)
1795 gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(gs->data),
1797 } else for (gs = fe->preset_radio; gs; gs = gs->next) {
1798 gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(gs->data),
1802 fe->preset_threaded = FALSE;
1805 * Update the greying on the Copy menu option.
1807 if (fe->copy_menu_item) {
1808 int enabled = midend_can_format_as_text_now(fe->me);
1809 gtk_widget_set_sensitive(fe->copy_menu_item, enabled);
1813 #if !GTK_CHECK_VERSION(3,0,0)
1814 static gboolean not_size_allocated_yet(GtkWidget *w)
1817 * This function tests whether a widget has not yet taken up space
1818 * on the screen which it will occupy in future. (Therefore, it
1819 * returns true only if the widget does exist but does not have a
1820 * size allocation. A null widget is already taking up all the
1821 * space it ever will.)
1824 return FALSE; /* nonexistent widgets aren't a problem */
1826 #if GTK_CHECK_VERSION(2,18,0) /* skip if no gtk_widget_get_allocation */
1829 gtk_widget_get_allocation(w, &a);
1830 if (a.height == 0 || a.width == 0)
1831 return TRUE; /* widget exists but has no size yet */
1838 static void try_shrink_drawing_area(frontend *fe)
1840 if (fe->drawing_area_shrink_pending &&
1841 (!fe->menubar_is_local || !not_size_allocated_yet(fe->menubar)) &&
1842 !not_size_allocated_yet(fe->statusbar)) {
1844 * In order to permit the user to resize the window smaller as
1845 * well as bigger, we call this function after the window size
1846 * has ended up where we want it. This shouldn't shrink the
1847 * window immediately; it just arranges that the next time the
1848 * user tries to shrink it, they can.
1850 * However, at puzzle creation time, we defer the first of
1851 * these operations until after the menu bar and status bar
1852 * are actually visible. On Ubuntu 12.04 I've found that these
1853 * can take a while to be displayed, and that it's a mistake
1854 * to reduce the drawing area's size allocation before they've
1855 * turned up or else the drawing area makes room for them by
1856 * shrinking to less than the size we intended.
1858 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), 1, 1);
1859 fe->drawing_area_shrink_pending = FALSE;
1862 #endif /* !GTK_CHECK_VERSION(3,0,0) */
1864 static gint configure_window(GtkWidget *widget,
1865 GdkEventConfigure *event, gpointer data)
1867 #if !GTK_CHECK_VERSION(3,0,0)
1869 * When the main puzzle window changes size, it might be because
1870 * the menu bar or status bar has turned up after starting off
1871 * absent, in which case we should have another go at enacting a
1872 * pending shrink of the drawing area.
1874 frontend *fe = (frontend *)data;
1875 try_shrink_drawing_area(fe);
1880 static void resize_fe(frontend *fe)
1884 get_size(fe, &x, &y);
1886 #if GTK_CHECK_VERSION(3,0,0)
1887 gtk_window_resize_to_geometry(GTK_WINDOW(fe->window), x, y);
1891 fe->drawing_area_shrink_pending = FALSE;
1892 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
1895 gtk_widget_size_request(GTK_WIDGET(fe->window), &req);
1896 gtk_window_resize(GTK_WINDOW(fe->window), req.width, req.height);
1898 fe->drawing_area_shrink_pending = TRUE;
1899 try_shrink_drawing_area(fe);
1903 static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
1905 frontend *fe = (frontend *)data;
1906 game_params *params =
1907 (game_params *)g_object_get_data(G_OBJECT(menuitem), "user-data");
1909 if (fe->preset_threaded ||
1910 (GTK_IS_CHECK_MENU_ITEM(menuitem) &&
1911 !gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
1913 midend_set_params(fe->me, params);
1914 midend_new_game(fe->me);
1919 GdkAtom compound_text_atom, utf8_string_atom;
1920 int paste_initialised = FALSE;
1922 static void set_selection(frontend *fe, GdkAtom selection)
1924 if (!paste_initialised) {
1925 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
1926 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
1927 paste_initialised = TRUE;
1931 * For this simple application we can safely assume that the
1932 * data passed to this function is pure ASCII, which means we
1933 * can return precisely the same stuff for types STRING,
1934 * COMPOUND_TEXT or UTF8_STRING.
1937 if (gtk_selection_owner_set(fe->area, selection, CurrentTime)) {
1938 gtk_selection_clear_targets(fe->area, selection);
1939 gtk_selection_add_target(fe->area, selection,
1940 GDK_SELECTION_TYPE_STRING, 1);
1941 gtk_selection_add_target(fe->area, selection, compound_text_atom, 1);
1942 gtk_selection_add_target(fe->area, selection, utf8_string_atom, 1);
1946 void write_clip(frontend *fe, char *data)
1949 sfree(fe->paste_data);
1951 fe->paste_data = data;
1952 fe->paste_data_len = strlen(data);
1954 set_selection(fe, GDK_SELECTION_PRIMARY);
1955 set_selection(fe, GDK_SELECTION_CLIPBOARD);
1958 void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
1959 guint info, guint time_stamp, gpointer data)
1961 frontend *fe = (frontend *)data;
1962 gtk_selection_data_set(seldata, gtk_selection_data_get_target(seldata), 8,
1963 fe->paste_data, fe->paste_data_len);
1966 gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
1969 frontend *fe = (frontend *)data;
1972 sfree(fe->paste_data);
1973 fe->paste_data = NULL;
1974 fe->paste_data_len = 0;
1978 static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
1980 frontend *fe = (frontend *)data;
1983 text = midend_text_format(fe->me);
1986 write_clip(fe, text);
1994 static void filesel_ok(GtkButton *button, gpointer data)
1996 frontend *fe = (frontend *)data;
1998 gpointer filesel = g_object_get_data(G_OBJECT(button), "user-data");
2001 gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
2003 fe->filesel_name = dupstr(name);
2006 static char *file_selector(frontend *fe, char *title, int save)
2008 GtkWidget *filesel =
2009 gtk_file_selection_new(title);
2011 fe->filesel_name = NULL;
2013 gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
2015 (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "user-data",
2018 (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
2019 G_CALLBACK(filesel_ok), fe);
2020 g_signal_connect_swapped
2021 (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
2022 G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
2023 g_signal_connect_object
2024 (G_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button), "clicked",
2025 G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
2026 g_signal_connect(G_OBJECT(filesel), "destroy",
2027 G_CALLBACK(window_destroy), NULL);
2028 gtk_widget_show(filesel);
2029 gtk_window_set_transient_for(GTK_WINDOW(filesel), GTK_WINDOW(fe->window));
2032 return fe->filesel_name;
2037 static char *file_selector(frontend *fe, char *title, int save)
2039 char *filesel_name = NULL;
2041 GtkWidget *filesel =
2042 gtk_file_chooser_dialog_new(title,
2043 GTK_WINDOW(fe->window),
2044 save ? GTK_FILE_CHOOSER_ACTION_SAVE :
2045 GTK_FILE_CHOOSER_ACTION_OPEN,
2046 LABEL_CANCEL, GTK_RESPONSE_CANCEL,
2047 save ? LABEL_SAVE : LABEL_OPEN,
2048 GTK_RESPONSE_ACCEPT,
2051 if (gtk_dialog_run(GTK_DIALOG(filesel)) == GTK_RESPONSE_ACCEPT) {
2052 const char *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(filesel));
2053 filesel_name = dupstr(name);
2056 gtk_widget_destroy(filesel);
2058 return filesel_name;
2063 struct savefile_write_ctx {
2068 static void savefile_write(void *wctx, void *buf, int len)
2070 struct savefile_write_ctx *ctx = (struct savefile_write_ctx *)wctx;
2071 if (fwrite(buf, 1, len, ctx->fp) < len)
2075 static int savefile_read(void *wctx, void *buf, int len)
2077 FILE *fp = (FILE *)wctx;
2080 ret = fread(buf, 1, len, fp);
2081 return (ret == len);
2084 static void menu_save_event(GtkMenuItem *menuitem, gpointer data)
2086 frontend *fe = (frontend *)data;
2089 name = file_selector(fe, "Enter name of game file to save", TRUE);
2094 if ((fp = fopen(name, "r")) != NULL) {
2095 char buf[256 + FILENAME_MAX];
2099 sprintf(buf, "Are you sure you want to overwrite the"
2101 FILENAME_MAX, name);
2102 if (!message_box(fe->window, "Question", buf, TRUE, MB_YESNO))
2106 fp = fopen(name, "w");
2110 error_box(fe->window, "Unable to open save file");
2115 struct savefile_write_ctx ctx;
2118 midend_serialise(fe->me, savefile_write, &ctx);
2122 sprintf(boxmsg, "Error writing save file: %.400s",
2124 error_box(fe->window, boxmsg);
2132 static void menu_load_event(GtkMenuItem *menuitem, gpointer data)
2134 frontend *fe = (frontend *)data;
2137 name = file_selector(fe, "Enter name of saved game file to load", FALSE);
2140 FILE *fp = fopen(name, "r");
2144 error_box(fe->window, "Unable to open saved game file");
2148 err = midend_deserialise(fe->me, savefile_read, fp);
2153 error_box(fe->window, err);
2162 static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
2164 frontend *fe = (frontend *)data;
2167 msg = midend_solve(fe->me);
2170 error_box(fe->window, msg);
2173 static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
2175 frontend *fe = (frontend *)data;
2177 midend_restart_game(fe->me);
2180 static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
2182 frontend *fe = (frontend *)data;
2183 int which = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(menuitem),
2186 if (fe->preset_threaded ||
2187 (GTK_IS_CHECK_MENU_ITEM(menuitem) &&
2188 !gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
2190 changed_preset(fe); /* Put the old preset back! */
2191 if (!get_config(fe, which))
2194 midend_new_game(fe->me);
2198 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
2200 frontend *fe = (frontend *)data;
2204 sprintf(titlebuf, "About %.200s", thegame.name);
2207 "from Simon Tatham's Portable Puzzle Collection\n\n"
2208 "%.500s", thegame.name, ver);
2210 message_box(fe->window, titlebuf, textbuf, TRUE, MB_OK);
2213 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
2214 char *text, int key)
2216 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
2218 gtk_container_add(cont, menuitem);
2219 g_object_set_data(G_OBJECT(menuitem), "user-data", GINT_TO_POINTER(key));
2220 g_signal_connect(G_OBJECT(menuitem), "activate",
2221 G_CALLBACK(menu_key_event), fe);
2222 switch (key & ~0x1F) {
2225 keyqual = GDK_CONTROL_MASK;
2229 keyqual = GDK_SHIFT_MASK;
2235 gtk_widget_add_accelerator(menuitem,
2236 "activate", fe->accelgroup,
2239 gtk_widget_show(menuitem);
2243 static void add_menu_separator(GtkContainer *cont)
2245 GtkWidget *menuitem = gtk_menu_item_new();
2246 gtk_container_add(cont, menuitem);
2247 gtk_widget_show(menuitem);
2250 enum { ARG_EITHER, ARG_SAVE, ARG_ID }; /* for argtype */
2252 static frontend *new_window(char *arg, int argtype, char **error)
2255 GtkBox *vbox, *hbox;
2256 GtkWidget *menu, *menuitem;
2260 extern char *const *const xpm_icons[];
2261 extern const int n_xpm_icons;
2263 fe = snew(frontend);
2265 fe->timer_active = FALSE;
2268 fe->me = midend_new(fe, &thegame, >k_drawing, fe);
2278 err = midend_game_id(fe->me, arg);
2280 midend_new_game(fe->me);
2282 sprintf(errbuf, "Invalid game ID: %.800s", err);
2285 fp = fopen(arg, "r");
2287 sprintf(errbuf, "Error opening file: %.800s", strerror(errno));
2289 err = midend_deserialise(fe->me, savefile_read, fp);
2291 sprintf(errbuf, "Invalid save file: %.800s", err);
2295 default /*case ARG_EITHER*/:
2297 * First try treating the argument as a game ID.
2299 err = midend_game_id(fe->me, arg);
2302 * It's a valid game ID.
2304 midend_new_game(fe->me);
2306 FILE *fp = fopen(arg, "r");
2308 sprintf(errbuf, "Supplied argument is neither a game ID (%.400s)"
2309 " nor a save file (%.400s)", err, strerror(errno));
2311 err = midend_deserialise(fe->me, savefile_read, fp);
2313 sprintf(errbuf, "%.800s", err);
2320 *error = dupstr(errbuf);
2321 midend_free(fe->me);
2327 midend_new_game(fe->me);
2330 #if !GTK_CHECK_VERSION(3,0,0)
2333 * try_shrink_drawing_area() will do some fiddling with the
2334 * window size request (see comment in that function) after
2335 * all the bits and pieces such as the menu bar and status bar
2336 * have appeared in the puzzle window.
2338 * However, on Unity systems, the menu bar _doesn't_ appear in
2339 * the puzzle window, because the Unity shell hijacks it into
2340 * the menu bar at the very top of the screen. We therefore
2341 * try to detect that situation here, so that we don't sit
2342 * here forever waiting for a menu bar.
2344 const char prop[] = "gtk-shell-shows-menubar";
2345 GtkSettings *settings = gtk_settings_get_default();
2346 if (!g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
2348 fe->menubar_is_local = TRUE;
2351 g_object_get(gtk_settings_get_default(),
2353 (const gchar *)NULL);
2354 fe->menubar_is_local = !unity_mode;
2359 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2360 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
2362 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
2363 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
2364 gtk_widget_show(GTK_WIDGET(vbox));
2366 fe->accelgroup = gtk_accel_group_new();
2367 gtk_window_add_accel_group(GTK_WINDOW(fe->window), fe->accelgroup);
2369 hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
2370 gtk_box_pack_start(vbox, GTK_WIDGET(hbox), FALSE, FALSE, 0);
2371 gtk_widget_show(GTK_WIDGET(hbox));
2373 fe->menubar = gtk_menu_bar_new();
2374 gtk_box_pack_start(hbox, fe->menubar, TRUE, TRUE, 0);
2375 gtk_widget_show(fe->menubar);
2377 menuitem = gtk_menu_item_new_with_mnemonic("_Game");
2378 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2379 gtk_widget_show(menuitem);
2381 menu = gtk_menu_new();
2382 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
2384 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
2386 menuitem = gtk_menu_item_new_with_label("Restart");
2387 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2388 g_signal_connect(G_OBJECT(menuitem), "activate",
2389 G_CALLBACK(menu_restart_event), fe);
2390 gtk_widget_show(menuitem);
2392 menuitem = gtk_menu_item_new_with_label("Specific...");
2393 g_object_set_data(G_OBJECT(menuitem), "user-data",
2394 GINT_TO_POINTER(CFG_DESC));
2395 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2396 g_signal_connect(G_OBJECT(menuitem), "activate",
2397 G_CALLBACK(menu_config_event), fe);
2398 gtk_widget_show(menuitem);
2400 menuitem = gtk_menu_item_new_with_label("Random Seed...");
2401 g_object_set_data(G_OBJECT(menuitem), "user-data",
2402 GINT_TO_POINTER(CFG_SEED));
2403 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2404 g_signal_connect(G_OBJECT(menuitem), "activate",
2405 G_CALLBACK(menu_config_event), fe);
2406 gtk_widget_show(menuitem);
2408 fe->preset_radio = NULL;
2409 fe->preset_custom = NULL;
2410 fe->n_preset_menu_items = 0;
2411 fe->preset_threaded = FALSE;
2412 if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
2416 menuitem = gtk_menu_item_new_with_mnemonic("_Type");
2417 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2418 gtk_widget_show(menuitem);
2420 submenu = gtk_menu_new();
2421 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
2423 for (i = 0; i < n; i++) {
2425 game_params *params;
2427 midend_fetch_preset(fe->me, i, &name, ¶ms);
2430 gtk_radio_menu_item_new_with_label(fe->preset_radio, name);
2432 gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(menuitem));
2433 fe->n_preset_menu_items++;
2434 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
2435 g_object_set_data(G_OBJECT(menuitem), "user-data", params);
2436 g_signal_connect(G_OBJECT(menuitem), "activate",
2437 G_CALLBACK(menu_preset_event), fe);
2438 gtk_widget_show(menuitem);
2441 if (thegame.can_configure) {
2442 menuitem = fe->preset_custom =
2443 gtk_radio_menu_item_new_with_label(fe->preset_radio,
2446 gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(menuitem));
2447 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
2448 g_object_set_data(G_OBJECT(menuitem), "user-data",
2449 GINT_TO_POINTER(CFG_SETTINGS));
2450 g_signal_connect(G_OBJECT(menuitem), "activate",
2451 G_CALLBACK(menu_config_event), fe);
2452 gtk_widget_show(menuitem);
2457 add_menu_separator(GTK_CONTAINER(menu));
2458 menuitem = gtk_menu_item_new_with_label("Load...");
2459 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2460 g_signal_connect(G_OBJECT(menuitem), "activate",
2461 G_CALLBACK(menu_load_event), fe);
2462 gtk_widget_show(menuitem);
2463 menuitem = gtk_menu_item_new_with_label("Save...");
2464 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2465 g_signal_connect(G_OBJECT(menuitem), "activate",
2466 G_CALLBACK(menu_save_event), fe);
2467 gtk_widget_show(menuitem);
2468 #ifndef STYLUS_BASED
2469 add_menu_separator(GTK_CONTAINER(menu));
2470 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
2471 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", 'r');
2473 if (thegame.can_format_as_text_ever) {
2474 add_menu_separator(GTK_CONTAINER(menu));
2475 menuitem = gtk_menu_item_new_with_label("Copy");
2476 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2477 g_signal_connect(G_OBJECT(menuitem), "activate",
2478 G_CALLBACK(menu_copy_event), fe);
2479 gtk_widget_show(menuitem);
2480 fe->copy_menu_item = menuitem;
2482 fe->copy_menu_item = NULL;
2484 if (thegame.can_solve) {
2485 add_menu_separator(GTK_CONTAINER(menu));
2486 menuitem = gtk_menu_item_new_with_label("Solve");
2487 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2488 g_signal_connect(G_OBJECT(menuitem), "activate",
2489 G_CALLBACK(menu_solve_event), fe);
2490 gtk_widget_show(menuitem);
2492 add_menu_separator(GTK_CONTAINER(menu));
2493 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
2495 menuitem = gtk_menu_item_new_with_mnemonic("_Help");
2496 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2497 gtk_widget_show(menuitem);
2499 menu = gtk_menu_new();
2500 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
2502 menuitem = gtk_menu_item_new_with_label("About");
2503 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2504 g_signal_connect(G_OBJECT(menuitem), "activate",
2505 G_CALLBACK(menu_about_event), fe);
2506 gtk_widget_show(menuitem);
2509 menuitem=gtk_button_new_with_mnemonic("_Redo");
2510 g_object_set_data(G_OBJECT(menuitem), "user-data",
2511 GINT_TO_POINTER((int)('r')));
2512 g_signal_connect(G_OBJECT(menuitem), "clicked",
2513 G_CALLBACK(menu_key_event), fe);
2514 gtk_box_pack_end(hbox, menuitem, FALSE, FALSE, 0);
2515 gtk_widget_show(menuitem);
2517 menuitem=gtk_button_new_with_mnemonic("_Undo");
2518 g_object_set_data(G_OBJECT(menuitem), "user-data",
2519 GINT_TO_POINTER((int)('u')));
2520 g_signal_connect(G_OBJECT(menuitem), "clicked",
2521 G_CALLBACK(menu_key_event), fe);
2522 gtk_box_pack_end(hbox, menuitem, FALSE, FALSE, 0);
2523 gtk_widget_show(menuitem);
2525 if (thegame.flags & REQUIRE_NUMPAD) {
2526 hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
2527 gtk_box_pack_start(vbox, GTK_WIDGET(hbox), FALSE, FALSE, 0);
2528 gtk_widget_show(GTK_WIDGET(hbox));
2532 for(errbuf[0]='0';errbuf[0]<='9';errbuf[0]++) {
2533 menuitem=gtk_button_new_with_label(errbuf);
2534 g_object_set_data(G_OBJECT(menuitem), "user-data",
2535 GINT_TO_POINTER((int)(errbuf[0])));
2536 g_signal_connect(G_OBJECT(menuitem), "clicked",
2537 G_CALLBACK(menu_key_event), fe);
2538 gtk_box_pack_start(hbox, menuitem, TRUE, TRUE, 0);
2539 gtk_widget_show(menuitem);
2542 #endif /* STYLUS_BASED */
2546 snaffle_colours(fe);
2548 if (midend_wants_statusbar(fe->me)) {
2549 GtkWidget *viewport;
2552 viewport = gtk_viewport_new(NULL, NULL);
2553 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
2554 fe->statusbar = gtk_statusbar_new();
2555 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
2556 gtk_widget_show(viewport);
2557 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
2558 gtk_widget_show(fe->statusbar);
2559 fe->statusctx = gtk_statusbar_get_context_id
2560 (GTK_STATUSBAR(fe->statusbar), "game");
2561 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
2563 gtk_widget_size_request(fe->statusbar, &req);
2565 /* For GTK 2.0, should we be using gtk_widget_set_size_request? */
2567 gtk_widget_set_usize(viewport, -1, req.height);
2569 fe->statusbar = NULL;
2571 fe->area = gtk_drawing_area_new();
2572 #if GTK_CHECK_VERSION(2,0,0)
2573 gtk_widget_set_double_buffered(fe->area, FALSE);
2577 geom.base_width = geom.base_height = 0;
2578 gtk_window_set_geometry_hints(GTK_WINDOW(fe->window), fe->area,
2579 &geom, GDK_HINT_BASE_SIZE);
2581 get_size(fe, &x, &y);
2582 #if GTK_CHECK_VERSION(3,0,0)
2583 gtk_window_set_default_geometry(GTK_WINDOW(fe->window), x, y);
2585 fe->drawing_area_shrink_pending = FALSE;
2586 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
2591 gtk_box_pack_end(vbox, fe->area, TRUE, TRUE, 0);
2593 clear_backing_store(fe);
2595 fe->nfonts = fe->fontsize = 0;
2597 fe->paste_data = NULL;
2598 fe->paste_data_len = 0;
2600 g_signal_connect(G_OBJECT(fe->window), "destroy",
2601 G_CALLBACK(destroy), fe);
2602 g_signal_connect(G_OBJECT(fe->window), "key_press_event",
2603 G_CALLBACK(key_event), fe);
2604 g_signal_connect(G_OBJECT(fe->area), "button_press_event",
2605 G_CALLBACK(button_event), fe);
2606 g_signal_connect(G_OBJECT(fe->area), "button_release_event",
2607 G_CALLBACK(button_event), fe);
2608 g_signal_connect(G_OBJECT(fe->area), "motion_notify_event",
2609 G_CALLBACK(motion_event), fe);
2610 g_signal_connect(G_OBJECT(fe->area), "selection_get",
2611 G_CALLBACK(selection_get), fe);
2612 g_signal_connect(G_OBJECT(fe->area), "selection_clear_event",
2613 G_CALLBACK(selection_clear), fe);
2614 #if GTK_CHECK_VERSION(3,0,0)
2615 g_signal_connect(G_OBJECT(fe->area), "draw",
2616 G_CALLBACK(draw_area), fe);
2618 g_signal_connect(G_OBJECT(fe->area), "expose_event",
2619 G_CALLBACK(expose_area), fe);
2621 g_signal_connect(G_OBJECT(fe->window), "map_event",
2622 G_CALLBACK(map_window), fe);
2623 g_signal_connect(G_OBJECT(fe->area), "configure_event",
2624 G_CALLBACK(configure_area), fe);
2625 g_signal_connect(G_OBJECT(fe->window), "configure_event",
2626 G_CALLBACK(configure_window), fe);
2628 gtk_widget_add_events(GTK_WIDGET(fe->area),
2629 GDK_BUTTON_PRESS_MASK |
2630 GDK_BUTTON_RELEASE_MASK |
2631 GDK_BUTTON_MOTION_MASK |
2632 GDK_POINTER_MOTION_HINT_MASK);
2635 gtk_window_set_icon(GTK_WINDOW(fe->window),
2636 gdk_pixbuf_new_from_xpm_data
2637 ((const gchar **)xpm_icons[0]));
2640 for (n = 0; n < n_xpm_icons; n++) {
2642 g_list_append(iconlist,
2643 gdk_pixbuf_new_from_xpm_data((const gchar **)
2646 gtk_window_set_icon_list(GTK_WINDOW(fe->window), iconlist);
2649 gtk_widget_show(fe->area);
2650 gtk_widget_show(fe->window);
2652 #if !GTK_CHECK_VERSION(3,0,0)
2653 fe->drawing_area_shrink_pending = TRUE;
2654 try_shrink_drawing_area(fe);
2657 set_window_background(fe, 0);
2662 char *fgetline(FILE *fp)
2664 char *ret = snewn(512, char);
2665 int size = 512, len = 0;
2666 while (fgets(ret + len, size - len, fp)) {
2667 len += strlen(ret + len);
2668 if (ret[len-1] == '\n')
2669 break; /* got a newline, we're done */
2671 ret = sresize(ret, size, char);
2673 if (len == 0) { /* first fgets returned NULL */
2681 int main(int argc, char **argv)
2683 char *pname = argv[0];
2685 int ngenerate = 0, print = FALSE, px = 1, py = 1;
2686 int time_generation = FALSE, test_solve = FALSE, list_presets = FALSE;
2687 int soln = FALSE, colour = FALSE;
2689 float redo_proportion = 0.0F;
2690 char *savefile = NULL, *savesuffix = NULL;
2692 int argtype = ARG_EITHER;
2693 char *screenshot_file = NULL;
2694 int doing_opts = TRUE;
2700 * Command line parsing in this function is rather fiddly,
2701 * because GTK wants to have a go at argc/argv _first_ - and
2702 * yet we can't let it, because gtk_init() will bomb out if it
2703 * can't open an X display, whereas in fact we want to permit
2704 * our --generate and --print modes to run without an X
2708 * - we parse the command line ourselves, without modifying
2710 * - if we encounter an error which might plausibly be the
2711 * result of a GTK command line (i.e. not detailed errors in
2712 * particular options of ours) we store the error message
2713 * and terminate parsing.
2714 * - if we got enough out of the command line to know it
2715 * specifies a non-X mode of operation, we either display
2716 * the stored error and return failure, or if there is no
2717 * stored error we do the non-X operation and return
2719 * - otherwise, we go straight to gtk_init().
2725 if (doing_opts && !strcmp(p, "--version")) {
2726 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
2729 } else if (doing_opts && !strcmp(p, "--generate")) {
2731 ngenerate = atoi(*++av);
2733 fprintf(stderr, "%s: '--generate' expected a number\n",
2739 } else if (doing_opts && !strcmp(p, "--time-generation")) {
2740 time_generation = TRUE;
2741 } else if (doing_opts && !strcmp(p, "--test-solve")) {
2743 } else if (doing_opts && !strcmp(p, "--list-presets")) {
2744 list_presets = TRUE;
2745 } else if (doing_opts && !strcmp(p, "--save")) {
2749 fprintf(stderr, "%s: '--save' expected a filename\n",
2753 } else if (doing_opts && (!strcmp(p, "--save-suffix") ||
2754 !strcmp(p, "--savesuffix"))) {
2758 fprintf(stderr, "%s: '--save-suffix' expected a filename\n",
2762 } else if (doing_opts && !strcmp(p, "--print")) {
2763 if (!thegame.can_print) {
2764 fprintf(stderr, "%s: this game does not support printing\n",
2771 if (sscanf(dim, "%dx%d", &px, &py) != 2) {
2772 fprintf(stderr, "%s: unable to parse argument '%s' to "
2773 "'--print'\n", pname, dim);
2779 } else if (doing_opts && !strcmp(p, "--scale")) {
2781 scale = atof(*++av);
2783 fprintf(stderr, "%s: no argument supplied to '--scale'\n",
2787 } else if (doing_opts && !strcmp(p, "--redo")) {
2789 * This is an internal option which I don't expect
2790 * users to have any particular use for. The effect of
2791 * --redo is that once the game has been loaded and
2792 * initialised, the next move in the redo chain is
2793 * replayed, and the game screen is redrawn part way
2794 * through the making of the move. This is only
2795 * meaningful if there _is_ a next move in the redo
2796 * chain, which means in turn that this option is only
2797 * useful if you're also passing a save file on the
2800 * This option is used by the script which generates
2801 * the puzzle icons and website screenshots, and I
2802 * don't imagine it's useful for anything else.
2803 * (Unless, I suppose, users don't like my screenshots
2804 * and want to generate their own in the same way for
2805 * some repackaged version of the puzzles.)
2808 redo_proportion = atof(*++av);
2810 fprintf(stderr, "%s: no argument supplied to '--redo'\n",
2814 } else if (doing_opts && !strcmp(p, "--screenshot")) {
2816 * Another internal option for the icon building
2817 * script. This causes a screenshot of the central
2818 * drawing area (i.e. not including the menu bar or
2819 * status bar) to be saved to a PNG file once the
2820 * window has been drawn, and then the application
2821 * quits immediately.
2824 screenshot_file = *++av;
2826 fprintf(stderr, "%s: no argument supplied to '--screenshot'\n",
2830 } else if (doing_opts && (!strcmp(p, "--with-solutions") ||
2831 !strcmp(p, "--with-solution") ||
2832 !strcmp(p, "--with-solns") ||
2833 !strcmp(p, "--with-soln") ||
2834 !strcmp(p, "--solutions") ||
2835 !strcmp(p, "--solution") ||
2836 !strcmp(p, "--solns") ||
2837 !strcmp(p, "--soln"))) {
2839 } else if (doing_opts && !strcmp(p, "--colour")) {
2840 if (!thegame.can_print_in_colour) {
2841 fprintf(stderr, "%s: this game does not support colour"
2842 " printing\n", pname);
2846 } else if (doing_opts && !strcmp(p, "--load")) {
2848 } else if (doing_opts && !strcmp(p, "--game")) {
2850 } else if (doing_opts && !strcmp(p, "--")) {
2852 } else if (!doing_opts || p[0] != '-') {
2854 fprintf(stderr, "%s: more than one argument supplied\n",
2860 sprintf(errbuf, "%.100s: unrecognised option '%.100s'\n",
2867 * Special standalone mode for generating puzzle IDs on the
2868 * command line. Useful for generating puzzles to be printed
2869 * out and solved offline (for puzzles where that even makes
2870 * sense - Solo, for example, is a lot more pencil-and-paper
2871 * friendly than Twiddle!)
2875 * <puzzle-name> --generate [<n> [<params>]]
2877 * <n>, if present, is the number of puzzle IDs to generate.
2878 * <params>, if present, is the same type of parameter string
2879 * you would pass to the puzzle when running it in GUI mode,
2880 * including optional extras such as the expansion factor in
2881 * Rectangles and the difficulty level in Solo.
2883 * If you specify <params>, you must also specify <n> (although
2884 * you may specify it to be 1). Sorry; that was the
2885 * simplest-to-parse command-line syntax I came up with.
2887 if (ngenerate > 0 || print || savefile || savesuffix) {
2891 document *doc = NULL;
2894 * If we're in this branch, we should display any pending
2895 * error message from the command line, since GTK isn't going
2896 * to take another crack at making sense of it.
2899 fputs(errbuf, stderr);
2905 me = midend_new(NULL, &thegame, NULL, NULL);
2908 if (savefile && !savesuffix)
2910 if (!savefile && savesuffix)
2914 doc = document_new(px, py, scale);
2917 * In this loop, we either generate a game ID or read one
2918 * from stdin depending on whether we're in generate mode;
2919 * then we either write it to stdout or print it, depending
2920 * on whether we're in print mode. Thus, this loop handles
2921 * generate-to-stdout, print-from-stdin and generate-and-
2922 * immediately-print modes.
2924 * (It could also handle a copy-stdin-to-stdout mode,
2925 * although there's currently no combination of options
2926 * which will cause this loop to be activated in that mode.
2927 * It wouldn't be _entirely_ pointless, though, because
2928 * stdin could contain bare params strings or random-seed
2929 * IDs, and stdout would contain nothing but fully
2930 * generated descriptive game IDs.)
2932 while (ngenerate == 0 || i < n) {
2933 char *pstr, *err, *seed;
2934 struct rusage before, after;
2936 if (ngenerate == 0) {
2937 pstr = fgetline(stdin);
2940 pstr[strcspn(pstr, "\r\n")] = '\0';
2943 pstr = snewn(strlen(arg) + 40, char);
2946 if (i > 0 && strchr(arg, '#'))
2947 sprintf(pstr + strlen(pstr), "-%d", i);
2953 err = midend_game_id(me, pstr);
2955 fprintf(stderr, "%s: error parsing '%s': %s\n",
2961 if (time_generation)
2962 getrusage(RUSAGE_SELF, &before);
2964 midend_new_game(me);
2966 seed = midend_get_random_seed(me);
2968 if (time_generation) {
2971 getrusage(RUSAGE_SELF, &after);
2973 elapsed = (after.ru_utime.tv_sec -
2974 before.ru_utime.tv_sec);
2975 elapsed += (after.ru_utime.tv_usec -
2976 before.ru_utime.tv_usec) / 1000000.0;
2978 printf("%s %s: %.6f\n", thegame.name, seed, elapsed);
2981 if (test_solve && thegame.can_solve) {
2983 * Now destroy the aux_info in the midend, by means of
2984 * re-entering the same game id, and then try to solve
2987 char *game_id, *err;
2989 game_id = midend_get_game_id(me);
2990 err = midend_game_id(me, game_id);
2992 fprintf(stderr, "%s %s: game id re-entry error: %s\n",
2993 thegame.name, seed, err);
2996 midend_new_game(me);
2999 err = midend_solve(me);
3001 * If the solve operation returned the error "Solution
3002 * not known for this puzzle", that's OK, because that
3003 * just means it's a puzzle for which we don't have an
3004 * algorithmic solver and hence can't solve it without
3005 * the aux_info, e.g. Netslide. Any other error is a
3008 if (err && strcmp(err, "Solution not known for this puzzle")) {
3009 fprintf(stderr, "%s %s: solve error: %s\n",
3010 thegame.name, seed, err);
3019 err = midend_print_puzzle(me, doc, soln);
3021 fprintf(stderr, "%s: error in printing: %s\n", pname, err);
3026 struct savefile_write_ctx ctx;
3027 char *realname = snewn(40 + strlen(savefile) +
3028 strlen(savesuffix), char);
3029 sprintf(realname, "%s%d%s", savefile, i, savesuffix);
3032 char *err = midend_solve(me);
3034 fprintf(stderr, "%s: unable to show solution: %s\n",
3040 ctx.fp = fopen(realname, "w");
3042 fprintf(stderr, "%s: open: %s\n", realname,
3047 midend_serialise(me, savefile_write, &ctx);
3049 fprintf(stderr, "%s: write: %s\n", realname,
3050 strerror(ctx.error));
3053 if (fclose(ctx.fp)) {
3054 fprintf(stderr, "%s: close: %s\n", realname,
3060 if (!doc && !savefile && !time_generation) {
3061 id = midend_get_game_id(me);
3070 psdata *ps = ps_init(stdout, colour);
3071 document_print(doc, ps_drawing_api(ps));
3079 } else if (list_presets) {
3081 * Another specialist mode which causes the puzzle to list the
3082 * game_params strings for all its preset configurations.
3087 me = midend_new(NULL, &thegame, NULL, NULL);
3088 npresets = midend_num_presets(me);
3090 for (i = 0; i < npresets; i++) {
3091 game_params *params;
3092 char *name, *paramstr;
3094 midend_fetch_preset(me, i, &name, ¶ms);
3095 paramstr = thegame.encode_params(params, TRUE);
3097 printf("%s %s\n", paramstr, name);
3106 gtk_init(&argc, &argv);
3108 fe = new_window(arg, argtype, &error);
3111 fprintf(stderr, "%s: %s\n", pname, error);
3115 if (screenshot_file) {
3117 * Some puzzles will not redraw their entire area if
3118 * given a partially completed animation, which means
3119 * we must redraw now and _then_ redraw again after
3120 * freezing the move timer.
3122 midend_force_redraw(fe->me);
3125 if (redo_proportion) {
3127 midend_process_key(fe->me, 0, 0, 'r');
3128 /* And freeze the timer at the specified position. */
3129 midend_freeze_timer(fe->me, redo_proportion);
3132 if (screenshot_file) {
3133 save_screenshot_png(fe, screenshot_file);