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1/*
2 * gtk.c: GTK front end for my puzzle collection.
3 */
4
5#include <stdio.h>
6#include <assert.h>
7#include <stdlib.h>
8#include <time.h>
9#include <stdarg.h>
10#include <string.h>
11#include <errno.h>
12#include <math.h>
13
14#include <sys/time.h>
15#include <sys/resource.h>
16
17#include <gtk/gtk.h>
18#include <gdk/gdkkeysyms.h>
19
20#include <gdk-pixbuf/gdk-pixbuf.h>
21
22#include <gdk/gdkx.h>
23#include <X11/Xlib.h>
24#include <X11/Xutil.h>
25#include <X11/Xatom.h>
26
27#include "puzzles.h"
28
29#if GTK_CHECK_VERSION(2,0,0)
30# define USE_PANGO
31# ifdef PANGO_VERSION_CHECK
32# if PANGO_VERSION_CHECK(1,8,0)
33# define HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
34# endif
35# endif
36#endif
37#if !GTK_CHECK_VERSION(2,4,0)
38# define OLD_FILESEL
39#endif
40#if GTK_CHECK_VERSION(2,8,0)
41# define USE_CAIRO
42# if GTK_CHECK_VERSION(3,0,0) || defined(GDK_DISABLE_DEPRECATED)
43# define USE_CAIRO_WITHOUT_PIXMAP
44# endif
45#endif
46
47#if GTK_CHECK_VERSION(3,0,0)
48/* The old names are still more concise! */
49#define gtk_hbox_new(x,y) gtk_box_new(GTK_ORIENTATION_HORIZONTAL,y)
50#define gtk_vbox_new(x,y) gtk_box_new(GTK_ORIENTATION_VERTICAL,y)
51/* GTK 3 has retired stock button labels */
52#define LABEL_OK "_OK"
53#define LABEL_CANCEL "_Cancel"
54#define LABEL_NO "_No"
55#define LABEL_YES "_Yes"
56#define LABEL_SAVE "_Save"
57#define LABEL_OPEN "_Open"
58#define gtk_button_new_with_our_label gtk_button_new_with_mnemonic
59#else
60#define LABEL_OK GTK_STOCK_OK
61#define LABEL_CANCEL GTK_STOCK_CANCEL
62#define LABEL_NO GTK_STOCK_NO
63#define LABEL_YES GTK_STOCK_YES
64#define LABEL_SAVE GTK_STOCK_SAVE
65#define LABEL_OPEN GTK_STOCK_OPEN
66#define gtk_button_new_with_our_label gtk_button_new_from_stock
67#endif
68
69/* #undef USE_CAIRO */
70/* #define NO_THICK_LINE */
71#ifdef DEBUGGING
72static FILE *debug_fp = NULL;
73
74void dputs(char *buf)
75{
76 if (!debug_fp) {
77 debug_fp = fopen("debug.log", "w");
78 }
79
80 fputs(buf, stderr);
81
82 if (debug_fp) {
83 fputs(buf, debug_fp);
84 fflush(debug_fp);
85 }
86}
87
88void debug_printf(char *fmt, ...)
89{
90 char buf[4096];
91 va_list ap;
92
93 va_start(ap, fmt);
94 vsprintf(buf, fmt, ap);
95 dputs(buf);
96 va_end(ap);
97}
98#endif
99
100/* ----------------------------------------------------------------------
101 * Error reporting functions used elsewhere.
102 */
103
104void fatal(char *fmt, ...)
105{
106 va_list ap;
107
108 fprintf(stderr, "fatal error: ");
109
110 va_start(ap, fmt);
111 vfprintf(stderr, fmt, ap);
112 va_end(ap);
113
114 fprintf(stderr, "\n");
115 exit(1);
116}
117
118/* ----------------------------------------------------------------------
119 * GTK front end to puzzles.
120 */
121
122static void changed_preset(frontend *fe);
123
124struct font {
125#ifdef USE_PANGO
126 PangoFontDescription *desc;
127#else
128 GdkFont *font;
129#endif
130 int type;
131 int size;
132};
133
134/*
135 * This structure holds all the data relevant to a single window.
136 * In principle this would allow us to open multiple independent
137 * puzzle windows, although I can't currently see any real point in
138 * doing so. I'm just coding cleanly because there's no
139 * particularly good reason not to.
140 */
141struct frontend {
142 GtkWidget *window;
143 GtkAccelGroup *accelgroup;
144 GtkWidget *area;
145 GtkWidget *statusbar;
146 GtkWidget *menubar;
147#if GTK_CHECK_VERSION(3,20,0)
148 GtkCssProvider *css_provider;
149#endif
150 guint statusctx;
151 int w, h;
152 midend *me;
153#ifdef USE_CAIRO
154 const float *colours;
155 cairo_t *cr;
156 cairo_surface_t *image;
157#ifndef USE_CAIRO_WITHOUT_PIXMAP
158 GdkPixmap *pixmap;
159#endif
160 GdkColor background; /* for painting outside puzzle area */
161#else
162 GdkPixmap *pixmap;
163 GdkGC *gc;
164 GdkColor *colours;
165 GdkColormap *colmap;
166 int backgroundindex; /* which of colours[] is background */
167#endif
168 int ncolours;
169 int bbox_l, bbox_r, bbox_u, bbox_d;
170 int timer_active, timer_id;
171 struct timeval last_time;
172 struct font *fonts;
173 int nfonts, fontsize;
174 config_item *cfg;
175 int cfg_which, cfgret;
176 GtkWidget *cfgbox;
177 void *paste_data;
178 int paste_data_len;
179 int pw, ph; /* pixmap size (w, h are area size) */
180 int ox, oy; /* offset of pixmap in drawing area */
181#ifdef OLD_FILESEL
182 char *filesel_name;
183#endif
184 GSList *preset_radio;
185 int preset_threaded;
186 GtkWidget *preset_custom;
187 GtkWidget *copy_menu_item;
188#if !GTK_CHECK_VERSION(3,0,0)
189 int drawing_area_shrink_pending;
190 int menubar_is_local;
191#endif
192};
193
194struct blitter {
195#ifdef USE_CAIRO
196 cairo_surface_t *image;
197#else
198 GdkPixmap *pixmap;
199#endif
200 int w, h, x, y;
201};
202
203void get_random_seed(void **randseed, int *randseedsize)
204{
205 struct timeval *tvp = snew(struct timeval);
206 gettimeofday(tvp, NULL);
207 *randseed = (void *)tvp;
208 *randseedsize = sizeof(struct timeval);
209}
210
211void frontend_default_colour(frontend *fe, float *output)
212{
213#if !GTK_CHECK_VERSION(3,0,0)
214 /*
215 * Use the widget style's default background colour as the
216 * background for the puzzle drawing area.
217 */
218 GdkColor col = gtk_widget_get_style(fe->window)->bg[GTK_STATE_NORMAL];
219 output[0] = col.red / 65535.0;
220 output[1] = col.green / 65535.0;
221 output[2] = col.blue / 65535.0;
222#else
223 /*
224 * GTK 3 has decided that there's no such thing as a 'default
225 * background colour' any more, because widget styles might set
226 * the background to something more complicated like a background
227 * image. We don't want to get into overlaying our entire puzzle
228 * on an arbitrary background image, so we'll just make up a
229 * reasonable shade of grey.
230 */
231 output[0] = output[1] = output[2] = 0.9F;
232#endif
233}
234
235void gtk_status_bar(void *handle, char *text)
236{
237 frontend *fe = (frontend *)handle;
238
239 assert(fe->statusbar);
240
241 gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
242 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, text);
243}
244
245/* ----------------------------------------------------------------------
246 * Cairo drawing functions.
247 */
248
249#ifdef USE_CAIRO
250
251static void setup_drawing(frontend *fe)
252{
253 fe->cr = cairo_create(fe->image);
254 cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_GRAY);
255 cairo_set_line_width(fe->cr, 1.0);
256 cairo_set_line_cap(fe->cr, CAIRO_LINE_CAP_SQUARE);
257 cairo_set_line_join(fe->cr, CAIRO_LINE_JOIN_ROUND);
258}
259
260static void teardown_drawing(frontend *fe)
261{
262 cairo_destroy(fe->cr);
263 fe->cr = NULL;
264
265#ifndef USE_CAIRO_WITHOUT_PIXMAP
266 {
267 cairo_t *cr = gdk_cairo_create(fe->pixmap);
268 cairo_set_source_surface(cr, fe->image, 0, 0);
269 cairo_rectangle(cr,
270 fe->bbox_l - 1,
271 fe->bbox_u - 1,
272 fe->bbox_r - fe->bbox_l + 2,
273 fe->bbox_d - fe->bbox_u + 2);
274 cairo_fill(cr);
275 cairo_destroy(cr);
276 }
277#endif
278}
279
280static void snaffle_colours(frontend *fe)
281{
282 fe->colours = midend_colours(fe->me, &fe->ncolours);
283}
284
285static void set_colour(frontend *fe, int colour)
286{
287 cairo_set_source_rgb(fe->cr,
288 fe->colours[3*colour + 0],
289 fe->colours[3*colour + 1],
290 fe->colours[3*colour + 2]);
291}
292
293static void set_window_background(frontend *fe, int colour)
294{
295#if GTK_CHECK_VERSION(3,20,0)
296 char css_buf[512];
297 sprintf(css_buf, ".background { "
298 "background-color: #%02x%02x%02x; }",
299 (unsigned)(fe->colours[3*colour + 0] * 255),
300 (unsigned)(fe->colours[3*colour + 1] * 255),
301 (unsigned)(fe->colours[3*colour + 2] * 255));
302 if (!fe->css_provider)
303 fe->css_provider = gtk_css_provider_new();
304 if (!gtk_css_provider_load_from_data(
305 GTK_CSS_PROVIDER(fe->css_provider), css_buf, -1, NULL))
306 assert(0 && "Couldn't load CSS");
307 gtk_style_context_add_provider(
308 gtk_widget_get_style_context(fe->window),
309 GTK_STYLE_PROVIDER(fe->css_provider),
310 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
311 gtk_style_context_add_provider(
312 gtk_widget_get_style_context(fe->area),
313 GTK_STYLE_PROVIDER(fe->css_provider),
314 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
315#elif GTK_CHECK_VERSION(3,0,0)
316 GdkRGBA rgba;
317 rgba.red = fe->colours[3*colour + 0];
318 rgba.green = fe->colours[3*colour + 1];
319 rgba.blue = fe->colours[3*colour + 2];
320 rgba.alpha = 1.0;
321 gdk_window_set_background_rgba(gtk_widget_get_window(fe->area), &rgba);
322 gdk_window_set_background_rgba(gtk_widget_get_window(fe->window), &rgba);
323#else
324 GdkColormap *colmap;
325
326 colmap = gdk_colormap_get_system();
327 fe->background.red = fe->colours[3*colour + 0] * 65535;
328 fe->background.green = fe->colours[3*colour + 1] * 65535;
329 fe->background.blue = fe->colours[3*colour + 2] * 65535;
330 if (!gdk_colormap_alloc_color(colmap, &fe->background, FALSE, FALSE)) {
331 g_error("couldn't allocate background (#%02x%02x%02x)\n",
332 fe->background.red >> 8, fe->background.green >> 8,
333 fe->background.blue >> 8);
334 }
335 gdk_window_set_background(gtk_widget_get_window(fe->area),
336 &fe->background);
337 gdk_window_set_background(gtk_widget_get_window(fe->window),
338 &fe->background);
339#endif
340}
341
342static PangoLayout *make_pango_layout(frontend *fe)
343{
344 return (pango_cairo_create_layout(fe->cr));
345}
346
347static void draw_pango_layout(frontend *fe, PangoLayout *layout,
348 int x, int y)
349{
350 cairo_move_to(fe->cr, x, y);
351 pango_cairo_show_layout(fe->cr, layout);
352}
353
354static void save_screenshot_png(frontend *fe, const char *screenshot_file)
355{
356 cairo_surface_write_to_png(fe->image, screenshot_file);
357}
358
359static void do_clip(frontend *fe, int x, int y, int w, int h)
360{
361 cairo_new_path(fe->cr);
362 cairo_rectangle(fe->cr, x, y, w, h);
363 cairo_clip(fe->cr);
364}
365
366static void do_unclip(frontend *fe)
367{
368 cairo_reset_clip(fe->cr);
369}
370
371static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
372{
373 cairo_save(fe->cr);
374 cairo_new_path(fe->cr);
375 cairo_set_antialias(fe->cr, CAIRO_ANTIALIAS_NONE);
376 cairo_rectangle(fe->cr, x, y, w, h);
377 cairo_fill(fe->cr);
378 cairo_restore(fe->cr);
379}
380
381static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
382{
383 cairo_new_path(fe->cr);
384 cairo_move_to(fe->cr, x1 + 0.5, y1 + 0.5);
385 cairo_line_to(fe->cr, x2 + 0.5, y2 + 0.5);
386 cairo_stroke(fe->cr);
387}
388
389static void do_draw_thick_line(frontend *fe, float thickness,
390 float x1, float y1, float x2, float y2)
391{
392 cairo_save(fe->cr);
393 cairo_set_line_width(fe->cr, thickness);
394 cairo_new_path(fe->cr);
395 cairo_move_to(fe->cr, x1, y1);
396 cairo_line_to(fe->cr, x2, y2);
397 cairo_stroke(fe->cr);
398 cairo_restore(fe->cr);
399}
400
401static void do_draw_poly(frontend *fe, int *coords, int npoints,
402 int fillcolour, int outlinecolour)
403{
404 int i;
405
406 cairo_new_path(fe->cr);
407 for (i = 0; i < npoints; i++)
408 cairo_line_to(fe->cr, coords[i*2] + 0.5, coords[i*2 + 1] + 0.5);
409 cairo_close_path(fe->cr);
410 if (fillcolour >= 0) {
411 set_colour(fe, fillcolour);
412 cairo_fill_preserve(fe->cr);
413 }
414 assert(outlinecolour >= 0);
415 set_colour(fe, outlinecolour);
416 cairo_stroke(fe->cr);
417}
418
419static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
420 int fillcolour, int outlinecolour)
421{
422 cairo_new_path(fe->cr);
423 cairo_arc(fe->cr, cx + 0.5, cy + 0.5, radius, 0, 2*PI);
424 cairo_close_path(fe->cr); /* Just in case... */
425 if (fillcolour >= 0) {
426 set_colour(fe, fillcolour);
427 cairo_fill_preserve(fe->cr);
428 }
429 assert(outlinecolour >= 0);
430 set_colour(fe, outlinecolour);
431 cairo_stroke(fe->cr);
432}
433
434static void setup_blitter(blitter *bl, int w, int h)
435{
436 bl->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24, w, h);
437}
438
439static void teardown_blitter(blitter *bl)
440{
441 cairo_surface_destroy(bl->image);
442}
443
444static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
445{
446 cairo_t *cr = cairo_create(bl->image);
447
448 cairo_set_source_surface(cr, fe->image, -x, -y);
449 cairo_paint(cr);
450 cairo_destroy(cr);
451}
452
453static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
454{
455 cairo_set_source_surface(fe->cr, bl->image, x, y);
456 cairo_paint(fe->cr);
457}
458
459static void clear_backing_store(frontend *fe)
460{
461 fe->image = NULL;
462}
463
464static void wipe_and_maybe_destroy_cairo(frontend *fe, cairo_t *cr,
465 int destroy)
466{
467 cairo_set_source_rgb(cr, fe->colours[0], fe->colours[1], fe->colours[2]);
468 cairo_paint(cr);
469 if (destroy)
470 cairo_destroy(cr);
471}
472
473static void setup_backing_store(frontend *fe)
474{
475#ifndef USE_CAIRO_WITHOUT_PIXMAP
476 fe->pixmap = gdk_pixmap_new(gtk_widget_get_window(fe->area),
477 fe->pw, fe->ph, -1);
478#endif
479 fe->image = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
480 fe->pw, fe->ph);
481
482 wipe_and_maybe_destroy_cairo(fe, cairo_create(fe->image), TRUE);
483#ifndef USE_CAIRO_WITHOUT_PIXMAP
484 wipe_and_maybe_destroy_cairo(fe, gdk_cairo_create(fe->pixmap), TRUE);
485#endif
486#if GTK_CHECK_VERSION(3,22,0)
487 {
488 GdkWindow *gdkwin;
489 cairo_region_t *region;
490 GdkDrawingContext *drawctx;
491 cairo_t *cr;
492
493 gdkwin = gtk_widget_get_window(fe->area);
494 region = gdk_window_get_clip_region(gdkwin);
495 drawctx = gdk_window_begin_draw_frame(gdkwin, region);
496 cr = gdk_drawing_context_get_cairo_context(drawctx);
497 wipe_and_maybe_destroy_cairo(fe, cr, FALSE);
498 gdk_window_end_draw_frame(gdkwin, drawctx);
499 cairo_region_destroy(region);
500 }
501#else
502 wipe_and_maybe_destroy_cairo(
503 fe, gdk_cairo_create(gtk_widget_get_window(fe->area)), TRUE);
504#endif
505}
506
507static int backing_store_ok(frontend *fe)
508{
509 return (!!fe->image);
510}
511
512static void teardown_backing_store(frontend *fe)
513{
514 cairo_surface_destroy(fe->image);
515#ifndef USE_CAIRO_WITHOUT_PIXMAP
516 gdk_pixmap_unref(fe->pixmap);
517#endif
518 fe->image = NULL;
519}
520
521#endif
522
523/* ----------------------------------------------------------------------
524 * GDK drawing functions.
525 */
526
527#ifndef USE_CAIRO
528
529static void setup_drawing(frontend *fe)
530{
531 fe->gc = gdk_gc_new(fe->area->window);
532}
533
534static void teardown_drawing(frontend *fe)
535{
536 gdk_gc_unref(fe->gc);
537 fe->gc = NULL;
538}
539
540static void snaffle_colours(frontend *fe)
541{
542 int i, ncolours;
543 float *colours;
544 gboolean *success;
545
546 fe->colmap = gdk_colormap_get_system();
547 colours = midend_colours(fe->me, &ncolours);
548 fe->ncolours = ncolours;
549 fe->colours = snewn(ncolours, GdkColor);
550 for (i = 0; i < ncolours; i++) {
551 fe->colours[i].red = colours[i*3] * 0xFFFF;
552 fe->colours[i].green = colours[i*3+1] * 0xFFFF;
553 fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
554 }
555 success = snewn(ncolours, gboolean);
556 gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
557 FALSE, FALSE, success);
558 for (i = 0; i < ncolours; i++) {
559 if (!success[i]) {
560 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
561 i, fe->colours[i].red >> 8,
562 fe->colours[i].green >> 8,
563 fe->colours[i].blue >> 8);
564 }
565 }
566}
567
568static void set_window_background(frontend *fe, int colour)
569{
570 fe->backgroundindex = colour;
571 gdk_window_set_background(fe->area->window, &fe->colours[colour]);
572 gdk_window_set_background(fe->window->window, &fe->colours[colour]);
573}
574
575static void set_colour(frontend *fe, int colour)
576{
577 gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
578}
579
580#ifdef USE_PANGO
581static PangoLayout *make_pango_layout(frontend *fe)
582{
583 return (pango_layout_new(gtk_widget_get_pango_context(fe->area)));
584}
585
586static void draw_pango_layout(frontend *fe, PangoLayout *layout,
587 int x, int y)
588{
589 gdk_draw_layout(fe->pixmap, fe->gc, x, y, layout);
590}
591#endif
592
593static void save_screenshot_png(frontend *fe, const char *screenshot_file)
594{
595 GdkPixbuf *pb;
596 GError *gerror = NULL;
597
598 midend_redraw(fe->me);
599
600 pb = gdk_pixbuf_get_from_drawable(NULL, fe->pixmap,
601 NULL, 0, 0, 0, 0, -1, -1);
602 gdk_pixbuf_save(pb, screenshot_file, "png", &gerror, NULL);
603}
604
605static void do_clip(frontend *fe, int x, int y, int w, int h)
606{
607 GdkRectangle rect;
608
609 rect.x = x;
610 rect.y = y;
611 rect.width = w;
612 rect.height = h;
613 gdk_gc_set_clip_rectangle(fe->gc, &rect);
614}
615
616static void do_unclip(frontend *fe)
617{
618 GdkRectangle rect;
619
620 rect.x = 0;
621 rect.y = 0;
622 rect.width = fe->w;
623 rect.height = fe->h;
624 gdk_gc_set_clip_rectangle(fe->gc, &rect);
625}
626
627static void do_draw_rect(frontend *fe, int x, int y, int w, int h)
628{
629 gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
630}
631
632static void do_draw_line(frontend *fe, int x1, int y1, int x2, int y2)
633{
634 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
635}
636
637static void do_draw_thick_line(frontend *fe, float thickness,
638 float x1, float y1, float x2, float y2)
639{
640 GdkGCValues save;
641
642 gdk_gc_get_values(fe->gc, &save);
643 gdk_gc_set_line_attributes(fe->gc,
644 thickness,
645 GDK_LINE_SOLID,
646 GDK_CAP_BUTT,
647 GDK_JOIN_BEVEL);
648 gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
649 gdk_gc_set_line_attributes(fe->gc,
650 save.line_width,
651 save.line_style,
652 save.cap_style,
653 save.join_style);
654}
655
656static void do_draw_poly(frontend *fe, int *coords, int npoints,
657 int fillcolour, int outlinecolour)
658{
659 GdkPoint *points = snewn(npoints, GdkPoint);
660 int i;
661
662 for (i = 0; i < npoints; i++) {
663 points[i].x = coords[i*2];
664 points[i].y = coords[i*2+1];
665 }
666
667 if (fillcolour >= 0) {
668 set_colour(fe, fillcolour);
669 gdk_draw_polygon(fe->pixmap, fe->gc, TRUE, points, npoints);
670 }
671 assert(outlinecolour >= 0);
672 set_colour(fe, outlinecolour);
673
674 /*
675 * In principle we ought to be able to use gdk_draw_polygon for
676 * the outline as well. In fact, it turns out to interact badly
677 * with a clipping region, for no terribly obvious reason, so I
678 * draw the outline as a sequence of lines instead.
679 */
680 for (i = 0; i < npoints; i++)
681 gdk_draw_line(fe->pixmap, fe->gc,
682 points[i].x, points[i].y,
683 points[(i+1)%npoints].x, points[(i+1)%npoints].y);
684
685 sfree(points);
686}
687
688static void do_draw_circle(frontend *fe, int cx, int cy, int radius,
689 int fillcolour, int outlinecolour)
690{
691 if (fillcolour >= 0) {
692 set_colour(fe, fillcolour);
693 gdk_draw_arc(fe->pixmap, fe->gc, TRUE,
694 cx - radius, cy - radius,
695 2 * radius, 2 * radius, 0, 360 * 64);
696 }
697
698 assert(outlinecolour >= 0);
699 set_colour(fe, outlinecolour);
700 gdk_draw_arc(fe->pixmap, fe->gc, FALSE,
701 cx - radius, cy - radius,
702 2 * radius, 2 * radius, 0, 360 * 64);
703}
704
705static void setup_blitter(blitter *bl, int w, int h)
706{
707 /*
708 * We can't create the pixmap right now, because fe->window
709 * might not yet exist. So we just cache w and h and create it
710 * during the firs call to blitter_save.
711 */
712 bl->pixmap = NULL;
713}
714
715static void teardown_blitter(blitter *bl)
716{
717 if (bl->pixmap)
718 gdk_pixmap_unref(bl->pixmap);
719}
720
721static void do_blitter_save(frontend *fe, blitter *bl, int x, int y)
722{
723 if (!bl->pixmap)
724 bl->pixmap = gdk_pixmap_new(fe->area->window, bl->w, bl->h, -1);
725 gdk_draw_pixmap(bl->pixmap,
726 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
727 fe->pixmap,
728 x, y, 0, 0, bl->w, bl->h);
729}
730
731static void do_blitter_load(frontend *fe, blitter *bl, int x, int y)
732{
733 assert(bl->pixmap);
734 gdk_draw_pixmap(fe->pixmap,
735 fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
736 bl->pixmap,
737 0, 0, x, y, bl->w, bl->h);
738}
739
740static void clear_backing_store(frontend *fe)
741{
742 fe->pixmap = NULL;
743}
744
745static void setup_backing_store(frontend *fe)
746{
747 GdkGC *gc;
748
749 fe->pixmap = gdk_pixmap_new(fe->area->window, fe->pw, fe->ph, -1);
750
751 gc = gdk_gc_new(fe->area->window);
752 gdk_gc_set_foreground(gc, &fe->colours[0]);
753 gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->pw, fe->ph);
754 gdk_draw_rectangle(fe->area->window, gc, 1, 0, 0, fe->w, fe->h);
755 gdk_gc_unref(gc);
756}
757
758static int backing_store_ok(frontend *fe)
759{
760 return (!!fe->pixmap);
761}
762
763static void teardown_backing_store(frontend *fe)
764{
765 gdk_pixmap_unref(fe->pixmap);
766 fe->pixmap = NULL;
767}
768
769#endif
770
771#ifndef USE_CAIRO_WITHOUT_PIXMAP
772static void repaint_rectangle(frontend *fe, GtkWidget *widget,
773 int x, int y, int w, int h)
774{
775 GdkGC *gc = gdk_gc_new(gtk_widget_get_window(widget));
776#ifdef USE_CAIRO
777 gdk_gc_set_foreground(gc, &fe->background);
778#else
779 gdk_gc_set_foreground(gc, &fe->colours[fe->backgroundindex]);
780#endif
781 if (x < fe->ox) {
782 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
783 TRUE, x, y, fe->ox - x, h);
784 w -= (fe->ox - x);
785 x = fe->ox;
786 }
787 if (y < fe->oy) {
788 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
789 TRUE, x, y, w, fe->oy - y);
790 h -= (fe->oy - y);
791 y = fe->oy;
792 }
793 if (w > fe->pw) {
794 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
795 TRUE, x + fe->pw, y, w - fe->pw, h);
796 w = fe->pw;
797 }
798 if (h > fe->ph) {
799 gdk_draw_rectangle(gtk_widget_get_window(widget), gc,
800 TRUE, x, y + fe->ph, w, h - fe->ph);
801 h = fe->ph;
802 }
803 gdk_draw_pixmap(gtk_widget_get_window(widget), gc, fe->pixmap,
804 x - fe->ox, y - fe->oy, x, y, w, h);
805 gdk_gc_unref(gc);
806}
807#endif
808
809/* ----------------------------------------------------------------------
810 * Pango font functions.
811 */
812
813#ifdef USE_PANGO
814
815static void add_font(frontend *fe, int index, int fonttype, int fontsize)
816{
817 /*
818 * Use Pango to find the closest match to the requested
819 * font.
820 */
821 PangoFontDescription *fd;
822
823 fd = pango_font_description_new();
824 /* `Monospace' and `Sans' are meta-families guaranteed to exist */
825 pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
826 "Monospace" : "Sans");
827 pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
828 /*
829 * I found some online Pango documentation which
830 * described a function called
831 * pango_font_description_set_absolute_size(), which is
832 * _exactly_ what I want here. Unfortunately, none of
833 * my local Pango installations have it (presumably
834 * they're too old), so I'm going to have to hack round
835 * it by figuring out the point size myself. This
836 * limits me to X and probably also breaks in later
837 * Pango installations, so ideally I should add another
838 * CHECK_VERSION type ifdef and use set_absolute_size
839 * where available. All very annoying.
840 */
841#ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
842 pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
843#else
844 {
845 Display *d = GDK_DISPLAY();
846 int s = DefaultScreen(d);
847 double resolution =
848 (PANGO_SCALE * 72.27 / 25.4) *
849 ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
850 pango_font_description_set_size(fd, resolution * fontsize);
851 }
852#endif
853 fe->fonts[index].desc = fd;
854}
855
856static void align_and_draw_text(frontend *fe,
857 int index, int align, int x, int y,
858 const char *text)
859{
860 PangoLayout *layout;
861 PangoRectangle rect;
862
863 layout = make_pango_layout(fe);
864
865 /*
866 * Create a layout.
867 */
868 pango_layout_set_font_description(layout, fe->fonts[index].desc);
869 pango_layout_set_text(layout, text, strlen(text));
870 pango_layout_get_pixel_extents(layout, NULL, &rect);
871
872 if (align & ALIGN_VCENTRE)
873 rect.y -= rect.height / 2;
874 else
875 rect.y -= rect.height;
876
877 if (align & ALIGN_HCENTRE)
878 rect.x -= rect.width / 2;
879 else if (align & ALIGN_HRIGHT)
880 rect.x -= rect.width;
881
882 draw_pango_layout(fe, layout, rect.x + x, rect.y + y);
883
884 g_object_unref(layout);
885}
886
887#endif
888
889/* ----------------------------------------------------------------------
890 * Old-fashioned font functions.
891 */
892
893#ifndef USE_PANGO
894
895static void add_font(int index, int fonttype, int fontsize)
896{
897 /*
898 * In GTK 1.2, I don't know of any plausible way to
899 * pick a suitable font, so I'm just going to be
900 * tedious.
901 */
902 fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
903 "fixed" : "variable");
904}
905
906static void align_and_draw_text(int index, int align, int x, int y,
907 const char *text)
908{
909 int lb, rb, wid, asc, desc;
910
911 /*
912 * Measure vertical string extents with respect to the same
913 * string always...
914 */
915 gdk_string_extents(fe->fonts[i].font,
916 "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
917 &lb, &rb, &wid, &asc, &desc);
918 if (align & ALIGN_VCENTRE)
919 y += asc - (asc+desc)/2;
920 else
921 y += asc;
922
923 /*
924 * ... but horizontal extents with respect to the provided
925 * string. This means that multiple pieces of text centred
926 * on the same y-coordinate don't have different baselines.
927 */
928 gdk_string_extents(fe->fonts[i].font, text,
929 &lb, &rb, &wid, &asc, &desc);
930
931 if (align & ALIGN_HCENTRE)
932 x -= wid / 2;
933 else if (align & ALIGN_HRIGHT)
934 x -= wid;
935
936 /*
937 * Actually draw the text.
938 */
939 gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
940}
941
942#endif
943
944/* ----------------------------------------------------------------------
945 * The exported drawing functions.
946 */
947
948void gtk_start_draw(void *handle)
949{
950 frontend *fe = (frontend *)handle;
951 fe->bbox_l = fe->w;
952 fe->bbox_r = 0;
953 fe->bbox_u = fe->h;
954 fe->bbox_d = 0;
955 setup_drawing(fe);
956}
957
958void gtk_clip(void *handle, int x, int y, int w, int h)
959{
960 frontend *fe = (frontend *)handle;
961 do_clip(fe, x, y, w, h);
962}
963
964void gtk_unclip(void *handle)
965{
966 frontend *fe = (frontend *)handle;
967 do_unclip(fe);
968}
969
970void gtk_draw_text(void *handle, int x, int y, int fonttype, int fontsize,
971 int align, int colour, char *text)
972{
973 frontend *fe = (frontend *)handle;
974 int i;
975
976 /*
977 * Find or create the font.
978 */
979 for (i = 0; i < fe->nfonts; i++)
980 if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
981 break;
982
983 if (i == fe->nfonts) {
984 if (fe->fontsize <= fe->nfonts) {
985 fe->fontsize = fe->nfonts + 10;
986 fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
987 }
988
989 fe->nfonts++;
990
991 fe->fonts[i].type = fonttype;
992 fe->fonts[i].size = fontsize;
993 add_font(fe, i, fonttype, fontsize);
994 }
995
996 /*
997 * Do the job.
998 */
999 set_colour(fe, colour);
1000 align_and_draw_text(fe, i, align, x, y, text);
1001}
1002
1003void gtk_draw_rect(void *handle, int x, int y, int w, int h, int colour)
1004{
1005 frontend *fe = (frontend *)handle;
1006 set_colour(fe, colour);
1007 do_draw_rect(fe, x, y, w, h);
1008}
1009
1010void gtk_draw_line(void *handle, int x1, int y1, int x2, int y2, int colour)
1011{
1012 frontend *fe = (frontend *)handle;
1013 set_colour(fe, colour);
1014 do_draw_line(fe, x1, y1, x2, y2);
1015}
1016
1017void gtk_draw_thick_line(void *handle, float thickness,
1018 float x1, float y1, float x2, float y2, int colour)
1019{
1020 frontend *fe = (frontend *)handle;
1021 set_colour(fe, colour);
1022 do_draw_thick_line(fe, thickness, x1, y1, x2, y2);
1023}
1024
1025void gtk_draw_poly(void *handle, int *coords, int npoints,
1026 int fillcolour, int outlinecolour)
1027{
1028 frontend *fe = (frontend *)handle;
1029 do_draw_poly(fe, coords, npoints, fillcolour, outlinecolour);
1030}
1031
1032void gtk_draw_circle(void *handle, int cx, int cy, int radius,
1033 int fillcolour, int outlinecolour)
1034{
1035 frontend *fe = (frontend *)handle;
1036 do_draw_circle(fe, cx, cy, radius, fillcolour, outlinecolour);
1037}
1038
1039blitter *gtk_blitter_new(void *handle, int w, int h)
1040{
1041 blitter *bl = snew(blitter);
1042 setup_blitter(bl, w, h);
1043 bl->w = w;
1044 bl->h = h;
1045 return bl;
1046}
1047
1048void gtk_blitter_free(void *handle, blitter *bl)
1049{
1050 teardown_blitter(bl);
1051 sfree(bl);
1052}
1053
1054void gtk_blitter_save(void *handle, blitter *bl, int x, int y)
1055{
1056 frontend *fe = (frontend *)handle;
1057 do_blitter_save(fe, bl, x, y);
1058 bl->x = x;
1059 bl->y = y;
1060}
1061
1062void gtk_blitter_load(void *handle, blitter *bl, int x, int y)
1063{
1064 frontend *fe = (frontend *)handle;
1065 if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
1066 x = bl->x;
1067 y = bl->y;
1068 }
1069 do_blitter_load(fe, bl, x, y);
1070}
1071
1072void gtk_draw_update(void *handle, int x, int y, int w, int h)
1073{
1074 frontend *fe = (frontend *)handle;
1075 if (fe->bbox_l > x ) fe->bbox_l = x ;
1076 if (fe->bbox_r < x+w) fe->bbox_r = x+w;
1077 if (fe->bbox_u > y ) fe->bbox_u = y ;
1078 if (fe->bbox_d < y+h) fe->bbox_d = y+h;
1079}
1080
1081void gtk_end_draw(void *handle)
1082{
1083 frontend *fe = (frontend *)handle;
1084
1085 teardown_drawing(fe);
1086
1087 if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
1088#ifdef USE_CAIRO_WITHOUT_PIXMAP
1089 gtk_widget_queue_draw_area(fe->area,
1090 fe->bbox_l - 1 + fe->ox,
1091 fe->bbox_u - 1 + fe->oy,
1092 fe->bbox_r - fe->bbox_l + 2,
1093 fe->bbox_d - fe->bbox_u + 2);
1094#else
1095 repaint_rectangle(fe, fe->area,
1096 fe->bbox_l - 1 + fe->ox,
1097 fe->bbox_u - 1 + fe->oy,
1098 fe->bbox_r - fe->bbox_l + 2,
1099 fe->bbox_d - fe->bbox_u + 2);
1100#endif
1101 }
1102}
1103
1104#ifdef USE_PANGO
1105char *gtk_text_fallback(void *handle, const char *const *strings, int nstrings)
1106{
1107 /*
1108 * We assume Pango can cope with any UTF-8 likely to be emitted
1109 * by a puzzle.
1110 */
1111 return dupstr(strings[0]);
1112}
1113#endif
1114
1115const struct drawing_api gtk_drawing = {
1116 gtk_draw_text,
1117 gtk_draw_rect,
1118 gtk_draw_line,
1119 gtk_draw_poly,
1120 gtk_draw_circle,
1121 gtk_draw_update,
1122 gtk_clip,
1123 gtk_unclip,
1124 gtk_start_draw,
1125 gtk_end_draw,
1126 gtk_status_bar,
1127 gtk_blitter_new,
1128 gtk_blitter_free,
1129 gtk_blitter_save,
1130 gtk_blitter_load,
1131 NULL, NULL, NULL, NULL, NULL, NULL, /* {begin,end}_{doc,page,puzzle} */
1132 NULL, NULL, /* line_width, line_dotted */
1133#ifdef USE_PANGO
1134 gtk_text_fallback,
1135#else
1136 NULL,
1137#endif
1138#ifdef NO_THICK_LINE
1139 NULL,
1140#else
1141 gtk_draw_thick_line,
1142#endif
1143};
1144
1145static void destroy(GtkWidget *widget, gpointer data)
1146{
1147 frontend *fe = (frontend *)data;
1148 deactivate_timer(fe);
1149 midend_free(fe->me);
1150 gtk_main_quit();
1151}
1152
1153static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
1154{
1155 frontend *fe = (frontend *)data;
1156 int keyval;
1157 int shift = (event->state & GDK_SHIFT_MASK) ? MOD_SHFT : 0;
1158 int ctrl = (event->state & GDK_CONTROL_MASK) ? MOD_CTRL : 0;
1159
1160 if (!backing_store_ok(fe))
1161 return TRUE;
1162
1163#if !GTK_CHECK_VERSION(2,0,0)
1164 /* Gtk 1.2 passes a key event to this function even if it's also
1165 * defined as an accelerator.
1166 * Gtk 2 doesn't do this, and this function appears not to exist there. */
1167 if (fe->accelgroup &&
1168 gtk_accel_group_get_entry(fe->accelgroup,
1169 event->keyval, event->state))
1170 return TRUE;
1171#endif
1172
1173 /* Handle mnemonics. */
1174 if (gtk_window_activate_key(GTK_WINDOW(fe->window), event))
1175 return TRUE;
1176
1177 if (event->keyval == GDK_KEY_Up)
1178 keyval = shift | ctrl | CURSOR_UP;
1179 else if (event->keyval == GDK_KEY_KP_Up ||
1180 event->keyval == GDK_KEY_KP_8)
1181 keyval = MOD_NUM_KEYPAD | '8';
1182 else if (event->keyval == GDK_KEY_Down)
1183 keyval = shift | ctrl | CURSOR_DOWN;
1184 else if (event->keyval == GDK_KEY_KP_Down ||
1185 event->keyval == GDK_KEY_KP_2)
1186 keyval = MOD_NUM_KEYPAD | '2';
1187 else if (event->keyval == GDK_KEY_Left)
1188 keyval = shift | ctrl | CURSOR_LEFT;
1189 else if (event->keyval == GDK_KEY_KP_Left ||
1190 event->keyval == GDK_KEY_KP_4)
1191 keyval = MOD_NUM_KEYPAD | '4';
1192 else if (event->keyval == GDK_KEY_Right)
1193 keyval = shift | ctrl | CURSOR_RIGHT;
1194 else if (event->keyval == GDK_KEY_KP_Right ||
1195 event->keyval == GDK_KEY_KP_6)
1196 keyval = MOD_NUM_KEYPAD | '6';
1197 else if (event->keyval == GDK_KEY_KP_Home ||
1198 event->keyval == GDK_KEY_KP_7)
1199 keyval = MOD_NUM_KEYPAD | '7';
1200 else if (event->keyval == GDK_KEY_KP_End ||
1201 event->keyval == GDK_KEY_KP_1)
1202 keyval = MOD_NUM_KEYPAD | '1';
1203 else if (event->keyval == GDK_KEY_KP_Page_Up ||
1204 event->keyval == GDK_KEY_KP_9)
1205 keyval = MOD_NUM_KEYPAD | '9';
1206 else if (event->keyval == GDK_KEY_KP_Page_Down ||
1207 event->keyval == GDK_KEY_KP_3)
1208 keyval = MOD_NUM_KEYPAD | '3';
1209 else if (event->keyval == GDK_KEY_KP_Insert ||
1210 event->keyval == GDK_KEY_KP_0)
1211 keyval = MOD_NUM_KEYPAD | '0';
1212 else if (event->keyval == GDK_KEY_KP_Begin ||
1213 event->keyval == GDK_KEY_KP_5)
1214 keyval = MOD_NUM_KEYPAD | '5';
1215 else if (event->keyval == GDK_KEY_BackSpace ||
1216 event->keyval == GDK_KEY_Delete ||
1217 event->keyval == GDK_KEY_KP_Delete)
1218 keyval = '\177';
1219 else if (event->string[0] && !event->string[1])
1220 keyval = (unsigned char)event->string[0];
1221 else
1222 keyval = -1;
1223
1224 if (keyval >= 0 &&
1225 !midend_process_key(fe->me, 0, 0, keyval))
1226 gtk_widget_destroy(fe->window);
1227
1228 return TRUE;
1229}
1230
1231static gint button_event(GtkWidget *widget, GdkEventButton *event,
1232 gpointer data)
1233{
1234 frontend *fe = (frontend *)data;
1235 int button;
1236
1237 if (!backing_store_ok(fe))
1238 return TRUE;
1239
1240 if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
1241 return TRUE;
1242
1243 if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
1244 button = MIDDLE_BUTTON;
1245 else if (event->button == 3 || (event->state & GDK_MOD1_MASK))
1246 button = RIGHT_BUTTON;
1247 else if (event->button == 1)
1248 button = LEFT_BUTTON;
1249 else if (event->button == 8 && event->type == GDK_BUTTON_PRESS)
1250 button = 'u';
1251 else if (event->button == 9 && event->type == GDK_BUTTON_PRESS)
1252 button = 'r';
1253 else
1254 return FALSE; /* don't even know what button! */
1255
1256 if (event->type == GDK_BUTTON_RELEASE && button >= LEFT_BUTTON)
1257 button += LEFT_RELEASE - LEFT_BUTTON;
1258
1259 if (!midend_process_key(fe->me, event->x - fe->ox,
1260 event->y - fe->oy, button))
1261 gtk_widget_destroy(fe->window);
1262
1263 return TRUE;
1264}
1265
1266static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
1267 gpointer data)
1268{
1269 frontend *fe = (frontend *)data;
1270 int button;
1271
1272 if (!backing_store_ok(fe))
1273 return TRUE;
1274
1275 if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
1276 button = MIDDLE_DRAG;
1277 else if (event->state & GDK_BUTTON1_MASK)
1278 button = LEFT_DRAG;
1279 else if (event->state & GDK_BUTTON3_MASK)
1280 button = RIGHT_DRAG;
1281 else
1282 return FALSE; /* don't even know what button! */
1283
1284 if (!midend_process_key(fe->me, event->x - fe->ox,
1285 event->y - fe->oy, button))
1286 gtk_widget_destroy(fe->window);
1287#if GTK_CHECK_VERSION(2,12,0)
1288 gdk_event_request_motions(event);
1289#else
1290 gdk_window_get_pointer(gtk_widget_get_window(widget), NULL, NULL, NULL);
1291#endif
1292
1293 return TRUE;
1294}
1295
1296#if GTK_CHECK_VERSION(3,0,0)
1297static gint draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
1298{
1299 frontend *fe = (frontend *)data;
1300 GdkRectangle dirtyrect;
1301
1302 gdk_cairo_get_clip_rectangle(cr, &dirtyrect);
1303 cairo_set_source_surface(cr, fe->image, fe->ox, fe->oy);
1304 cairo_rectangle(cr, dirtyrect.x, dirtyrect.y,
1305 dirtyrect.width, dirtyrect.height);
1306 cairo_fill(cr);
1307
1308 return TRUE;
1309}
1310#else
1311static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
1312 gpointer data)
1313{
1314 frontend *fe = (frontend *)data;
1315
1316 if (backing_store_ok(fe)) {
1317#ifdef USE_CAIRO_WITHOUT_PIXMAP
1318 cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
1319 cairo_set_source_surface(cr, fe->image, fe->ox, fe->oy);
1320 cairo_rectangle(cr, event->area.x, event->area.y,
1321 event->area.width, event->area.height);
1322 cairo_fill(cr);
1323 cairo_destroy(cr);
1324#else
1325 repaint_rectangle(fe, widget,
1326 event->area.x, event->area.y,
1327 event->area.width, event->area.height);
1328#endif
1329 }
1330 return TRUE;
1331}
1332#endif
1333
1334static gint map_window(GtkWidget *widget, GdkEvent *event,
1335 gpointer data)
1336{
1337 frontend *fe = (frontend *)data;
1338
1339 /*
1340 * Apparently we need to do this because otherwise the status
1341 * bar will fail to update immediately. Annoying, but there we
1342 * go.
1343 */
1344 gtk_widget_queue_draw(fe->window);
1345
1346 return TRUE;
1347}
1348
1349static gint configure_area(GtkWidget *widget,
1350 GdkEventConfigure *event, gpointer data)
1351{
1352 frontend *fe = (frontend *)data;
1353 int x, y;
1354 int oldw = fe->w, oldpw = fe->pw, oldh = fe->h, oldph = fe->ph;
1355
1356 x = event->width;
1357 y = event->height;
1358 fe->w = x;
1359 fe->h = y;
1360 midend_size(fe->me, &x, &y, TRUE);
1361 fe->pw = x;
1362 fe->ph = y;
1363 fe->ox = (fe->w - fe->pw) / 2;
1364 fe->oy = (fe->h - fe->ph) / 2;
1365
1366 if (oldw != fe->w || oldpw != fe->pw ||
1367 oldh != fe->h || oldph != fe->ph || !backing_store_ok(fe)) {
1368 if (backing_store_ok(fe))
1369 teardown_backing_store(fe);
1370 setup_backing_store(fe);
1371 }
1372
1373 midend_force_redraw(fe->me);
1374
1375 return TRUE;
1376}
1377
1378static gint timer_func(gpointer data)
1379{
1380 frontend *fe = (frontend *)data;
1381
1382 if (fe->timer_active) {
1383 struct timeval now;
1384 float elapsed;
1385 gettimeofday(&now, NULL);
1386 elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
1387 (now.tv_sec - fe->last_time.tv_sec));
1388 midend_timer(fe->me, elapsed); /* may clear timer_active */
1389 fe->last_time = now;
1390 }
1391
1392 return fe->timer_active;
1393}
1394
1395void deactivate_timer(frontend *fe)
1396{
1397 if (!fe)
1398 return; /* can happen due to --generate */
1399 if (fe->timer_active)
1400 g_source_remove(fe->timer_id);
1401 fe->timer_active = FALSE;
1402}
1403
1404void activate_timer(frontend *fe)
1405{
1406 if (!fe)
1407 return; /* can happen due to --generate */
1408 if (!fe->timer_active) {
1409 fe->timer_id = g_timeout_add(20, timer_func, fe);
1410 gettimeofday(&fe->last_time, NULL);
1411 }
1412 fe->timer_active = TRUE;
1413}
1414
1415static void window_destroy(GtkWidget *widget, gpointer data)
1416{
1417 gtk_main_quit();
1418}
1419
1420static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
1421{
1422 GObject *cancelbutton = G_OBJECT(data);
1423
1424 /*
1425 * `Escape' effectively clicks the cancel button
1426 */
1427 if (event->keyval == GDK_KEY_Escape) {
1428 g_signal_emit_by_name(cancelbutton, "clicked");
1429 return TRUE;
1430 }
1431
1432 return FALSE;
1433}
1434
1435enum { MB_OK, MB_YESNO };
1436
1437static void align_label(GtkLabel *label, double x, double y)
1438{
1439#if GTK_CHECK_VERSION(3,16,0)
1440 gtk_label_set_xalign(label, x);
1441 gtk_label_set_yalign(label, y);
1442#elif GTK_CHECK_VERSION(3,14,0)
1443 gtk_widget_set_halign(GTK_WIDGET(label),
1444 x == 0 ? GTK_ALIGN_START :
1445 x == 1 ? GTK_ALIGN_END : GTK_ALIGN_CENTER);
1446 gtk_widget_set_valign(GTK_WIDGET(label),
1447 y == 0 ? GTK_ALIGN_START :
1448 y == 1 ? GTK_ALIGN_END : GTK_ALIGN_CENTER);
1449#else
1450 gtk_misc_set_alignment(GTK_MISC(label), x, y);
1451#endif
1452}
1453
1454#if GTK_CHECK_VERSION(3,0,0)
1455int message_box(GtkWidget *parent, char *title, char *msg, int centre,
1456 int type)
1457{
1458 GtkWidget *window;
1459 gint ret;
1460
1461 window = gtk_message_dialog_new
1462 (GTK_WINDOW(parent),
1463 (GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT),
1464 (type == MB_OK ? GTK_MESSAGE_INFO : GTK_MESSAGE_QUESTION),
1465 (type == MB_OK ? GTK_BUTTONS_OK : GTK_BUTTONS_YES_NO),
1466 "%s", msg);
1467 gtk_window_set_title(GTK_WINDOW(window), title);
1468 ret = gtk_dialog_run(GTK_DIALOG(window));
1469 gtk_widget_destroy(window);
1470 return (type == MB_OK ? TRUE : (ret == GTK_RESPONSE_YES));
1471}
1472#else /* GTK_CHECK_VERSION(3,0,0) */
1473static void msgbox_button_clicked(GtkButton *button, gpointer data)
1474{
1475 GtkWidget *window = GTK_WIDGET(data);
1476 int v, *ip;
1477
1478 ip = (int *)g_object_get_data(G_OBJECT(window), "user-data");
1479 v = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "user-data"));
1480 *ip = v;
1481
1482 gtk_widget_destroy(GTK_WIDGET(data));
1483}
1484
1485int message_box(GtkWidget *parent, char *title, char *msg, int centre,
1486 int type)
1487{
1488 GtkWidget *window, *hbox, *text, *button;
1489 char *titles;
1490 int i, def, cancel;
1491
1492 window = gtk_dialog_new();
1493 text = gtk_label_new(msg);
1494 align_label(GTK_LABEL(text), 0.0, 0.0);
1495 hbox = gtk_hbox_new(FALSE, 0);
1496 gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
1497 gtk_box_pack_start
1498 (GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(window))),
1499 hbox, FALSE, FALSE, 20);
1500 gtk_widget_show(text);
1501 gtk_widget_show(hbox);
1502 gtk_window_set_title(GTK_WINDOW(window), title);
1503 gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
1504
1505 if (type == MB_OK) {
1506 titles = LABEL_OK "\0";
1507 def = cancel = 0;
1508 } else {
1509 assert(type == MB_YESNO);
1510 titles = LABEL_NO "\0" LABEL_YES "\0";
1511 def = 1;
1512 cancel = 0;
1513 }
1514 i = 0;
1515
1516 while (*titles) {
1517 button = gtk_button_new_with_our_label(titles);
1518 gtk_box_pack_end
1519 (GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(window))),
1520 button, FALSE, FALSE, 0);
1521 gtk_widget_show(button);
1522 if (i == def) {
1523 gtk_widget_set_can_default(button, TRUE);
1524 gtk_window_set_default(GTK_WINDOW(window), button);
1525 }
1526 if (i == cancel) {
1527 g_signal_connect(G_OBJECT(window), "key_press_event",
1528 G_CALLBACK(win_key_press), button);
1529 }
1530 g_signal_connect(G_OBJECT(button), "clicked",
1531 G_CALLBACK(msgbox_button_clicked), window);
1532 g_object_set_data(G_OBJECT(button), "user-data",
1533 GINT_TO_POINTER(i));
1534 titles += strlen(titles)+1;
1535 i++;
1536 }
1537 g_object_set_data(G_OBJECT(window), "user-data", &i);
1538 g_signal_connect(G_OBJECT(window), "destroy",
1539 G_CALLBACK(window_destroy), NULL);
1540 gtk_window_set_modal(GTK_WINDOW(window), TRUE);
1541 gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
1542 /* set_transient_window_pos(parent, window); */
1543 gtk_widget_show(window);
1544 i = -1;
1545 gtk_main();
1546 return (type == MB_YESNO ? i == 1 : TRUE);
1547}
1548#endif /* GTK_CHECK_VERSION(3,0,0) */
1549
1550void error_box(GtkWidget *parent, char *msg)
1551{
1552 message_box(parent, "Error", msg, FALSE, MB_OK);
1553}
1554
1555static void config_ok_button_clicked(GtkButton *button, gpointer data)
1556{
1557 frontend *fe = (frontend *)data;
1558 char *err;
1559
1560 err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
1561
1562 if (err)
1563 error_box(fe->cfgbox, err);
1564 else {
1565 fe->cfgret = TRUE;
1566 gtk_widget_destroy(fe->cfgbox);
1567 changed_preset(fe);
1568 }
1569}
1570
1571static void config_cancel_button_clicked(GtkButton *button, gpointer data)
1572{
1573 frontend *fe = (frontend *)data;
1574
1575 gtk_widget_destroy(fe->cfgbox);
1576}
1577
1578static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
1579{
1580 /*
1581 * GtkEntry has a nasty habit of eating the Return key, which
1582 * is unhelpful since it doesn't actually _do_ anything with it
1583 * (it calls gtk_widget_activate, but our edit boxes never need
1584 * activating). So I catch Return before GtkEntry sees it, and
1585 * pass it straight on to the parent widget. Effect: hitting
1586 * Return in an edit box will now activate the default button
1587 * in the dialog just like it will everywhere else.
1588 */
1589 if (event->keyval == GDK_KEY_Return &&
1590 gtk_widget_get_parent(widget) != NULL) {
1591 gint return_val;
1592 g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
1593 g_signal_emit_by_name(G_OBJECT(gtk_widget_get_parent(widget)),
1594 "key_press_event", event, &return_val);
1595 return return_val;
1596 }
1597 return FALSE;
1598}
1599
1600static void editbox_changed(GtkEditable *ed, gpointer data)
1601{
1602 config_item *i = (config_item *)data;
1603
1604 sfree(i->sval);
1605 i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
1606}
1607
1608static void button_toggled(GtkToggleButton *tb, gpointer data)
1609{
1610 config_item *i = (config_item *)data;
1611
1612 i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
1613}
1614
1615static void droplist_sel(GtkComboBox *combo, gpointer data)
1616{
1617 config_item *i = (config_item *)data;
1618
1619 i->ival = gtk_combo_box_get_active(combo);
1620}
1621
1622static int get_config(frontend *fe, int which)
1623{
1624 GtkWidget *w, *table, *cancel;
1625 GtkBox *content_box, *button_box;
1626 char *title;
1627 config_item *i;
1628 int y;
1629
1630 fe->cfg = midend_get_config(fe->me, which, &title);
1631 fe->cfg_which = which;
1632 fe->cfgret = FALSE;
1633
1634#if GTK_CHECK_VERSION(3,0,0)
1635 /* GtkDialog isn't quite flexible enough */
1636 fe->cfgbox = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1637 content_box = GTK_BOX(gtk_vbox_new(FALSE, 8));
1638 g_object_set(G_OBJECT(content_box), "margin", 8, (const char *)NULL);
1639 gtk_widget_show(GTK_WIDGET(content_box));
1640 gtk_container_add(GTK_CONTAINER(fe->cfgbox), GTK_WIDGET(content_box));
1641 button_box = GTK_BOX(gtk_hbox_new(FALSE, 8));
1642 gtk_widget_show(GTK_WIDGET(button_box));
1643 gtk_box_pack_end(content_box, GTK_WIDGET(button_box), FALSE, FALSE, 0);
1644 {
1645 GtkWidget *sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
1646 gtk_widget_show(sep);
1647 gtk_box_pack_end(content_box, sep, FALSE, FALSE, 0);
1648 }
1649#else
1650 fe->cfgbox = gtk_dialog_new();
1651 content_box = GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(fe->cfgbox)));
1652 button_box = GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(fe->cfgbox)));
1653#endif
1654 gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
1655 sfree(title);
1656
1657 w = gtk_button_new_with_our_label(LABEL_CANCEL);
1658 gtk_box_pack_end(button_box, w, FALSE, FALSE, 0);
1659 gtk_widget_show(w);
1660 g_signal_connect(G_OBJECT(w), "clicked",
1661 G_CALLBACK(config_cancel_button_clicked), fe);
1662 cancel = w;
1663
1664 w = gtk_button_new_with_our_label(LABEL_OK);
1665 gtk_box_pack_end(button_box, w, FALSE, FALSE, 0);
1666 gtk_widget_show(w);
1667 gtk_widget_set_can_default(w, TRUE);
1668 gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
1669 g_signal_connect(G_OBJECT(w), "clicked",
1670 G_CALLBACK(config_ok_button_clicked), fe);
1671
1672#if GTK_CHECK_VERSION(3,0,0)
1673 table = gtk_grid_new();
1674#else
1675 table = gtk_table_new(1, 2, FALSE);
1676#endif
1677 y = 0;
1678 gtk_box_pack_start(content_box, table, FALSE, FALSE, 0);
1679 gtk_widget_show(table);
1680
1681 for (i = fe->cfg; i->type != C_END; i++) {
1682#if !GTK_CHECK_VERSION(3,0,0)
1683 gtk_table_resize(GTK_TABLE(table), y+1, 2);
1684#endif
1685
1686 switch (i->type) {
1687 case C_STRING:
1688 /*
1689 * Edit box with a label beside it.
1690 */
1691
1692 w = gtk_label_new(i->name);
1693 align_label(GTK_LABEL(w), 0.0, 0.5);
1694#if GTK_CHECK_VERSION(3,0,0)
1695 gtk_grid_attach(GTK_GRID(table), w, 0, y, 1, 1);
1696#else
1697 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
1698 GTK_SHRINK | GTK_FILL,
1699 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1700 3, 3);
1701#endif
1702 gtk_widget_show(w);
1703
1704 w = gtk_entry_new();
1705#if GTK_CHECK_VERSION(3,0,0)
1706 gtk_grid_attach(GTK_GRID(table), w, 1, y, 1, 1);
1707 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
1708#else
1709 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
1710 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1711 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1712 3, 3);
1713#endif
1714 gtk_entry_set_text(GTK_ENTRY(w), i->sval);
1715 g_signal_connect(G_OBJECT(w), "changed",
1716 G_CALLBACK(editbox_changed), i);
1717 g_signal_connect(G_OBJECT(w), "key_press_event",
1718 G_CALLBACK(editbox_key), NULL);
1719 gtk_widget_show(w);
1720
1721 break;
1722
1723 case C_BOOLEAN:
1724 /*
1725 * Simple checkbox.
1726 */
1727 w = gtk_check_button_new_with_label(i->name);
1728 g_signal_connect(G_OBJECT(w), "toggled",
1729 G_CALLBACK(button_toggled), i);
1730#if GTK_CHECK_VERSION(3,0,0)
1731 gtk_grid_attach(GTK_GRID(table), w, 0, y, 2, 1);
1732 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
1733#else
1734 gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
1735 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1736 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1737 3, 3);
1738#endif
1739 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
1740 gtk_widget_show(w);
1741 break;
1742
1743 case C_CHOICES:
1744 /*
1745 * Drop-down list (GtkComboBox).
1746 */
1747
1748 w = gtk_label_new(i->name);
1749 align_label(GTK_LABEL(w), 0.0, 0.5);
1750#if GTK_CHECK_VERSION(3,0,0)
1751 gtk_grid_attach(GTK_GRID(table), w, 0, y, 1, 1);
1752#else
1753 gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
1754 GTK_SHRINK | GTK_FILL,
1755 GTK_EXPAND | GTK_SHRINK | GTK_FILL ,
1756 3, 3);
1757#endif
1758 gtk_widget_show(w);
1759
1760 {
1761 int c;
1762 char *p, *q, *name;
1763 GtkListStore *model;
1764 GtkCellRenderer *cr;
1765 GtkTreeIter iter;
1766
1767 model = gtk_list_store_new(1, G_TYPE_STRING);
1768
1769 c = *i->sval;
1770 p = i->sval+1;
1771
1772 while (*p) {
1773 q = p;
1774 while (*q && *q != c)
1775 q++;
1776
1777 name = snewn(q-p+1, char);
1778 strncpy(name, p, q-p);
1779 name[q-p] = '\0';
1780
1781 if (*q) q++; /* eat delimiter */
1782
1783 gtk_list_store_append(model, &iter);
1784 gtk_list_store_set(model, &iter, 0, name, -1);
1785
1786 p = q;
1787 }
1788
1789 w = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
1790
1791 gtk_combo_box_set_active(GTK_COMBO_BOX(w), i->ival);
1792
1793 cr = gtk_cell_renderer_text_new();
1794 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(w), cr, TRUE);
1795 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(w), cr,
1796 "text", 0, NULL);
1797
1798 g_signal_connect(G_OBJECT(w), "changed",
1799 G_CALLBACK(droplist_sel), i);
1800 }
1801
1802#if GTK_CHECK_VERSION(3,0,0)
1803 gtk_grid_attach(GTK_GRID(table), w, 1, y, 1, 1);
1804 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
1805#else
1806 gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
1807 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1808 GTK_EXPAND | GTK_SHRINK | GTK_FILL,
1809 3, 3);
1810#endif
1811 gtk_widget_show(w);
1812 break;
1813 }
1814
1815 y++;
1816 }
1817
1818 g_signal_connect(G_OBJECT(fe->cfgbox), "destroy",
1819 G_CALLBACK(window_destroy), NULL);
1820 g_signal_connect(G_OBJECT(fe->cfgbox), "key_press_event",
1821 G_CALLBACK(win_key_press), cancel);
1822 gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
1823 gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
1824 GTK_WINDOW(fe->window));
1825 /* set_transient_window_pos(fe->window, fe->cfgbox); */
1826 gtk_widget_show(fe->cfgbox);
1827 gtk_main();
1828
1829 free_cfg(fe->cfg);
1830
1831 return fe->cfgret;
1832}
1833
1834static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
1835{
1836 frontend *fe = (frontend *)data;
1837 int key = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(menuitem),
1838 "user-data"));
1839 if (!midend_process_key(fe->me, 0, 0, key))
1840 gtk_widget_destroy(fe->window);
1841}
1842
1843static void get_size(frontend *fe, int *px, int *py)
1844{
1845 int x, y;
1846
1847 /*
1848 * Currently I don't want to make the GTK port scale large
1849 * puzzles to fit on the screen. This is because X does permit
1850 * extremely large windows and many window managers provide a
1851 * means of navigating round them, and the users I consulted
1852 * before deciding said that they'd rather have enormous puzzle
1853 * windows spanning multiple screen pages than have them
1854 * shrunk. I could change my mind later or introduce
1855 * configurability; this would be the place to do so, by
1856 * replacing the initial values of x and y with the screen
1857 * dimensions.
1858 */
1859 x = INT_MAX;
1860 y = INT_MAX;
1861 midend_size(fe->me, &x, &y, FALSE);
1862 *px = x;
1863 *py = y;
1864}
1865
1866#if !GTK_CHECK_VERSION(2,0,0)
1867#define gtk_window_resize(win, x, y) \
1868 gdk_window_resize(GTK_WIDGET(win)->window, x, y)
1869#endif
1870
1871/*
1872 * Called when any other code in this file has changed the
1873 * selected game parameters.
1874 */
1875static void changed_preset(frontend *fe)
1876{
1877 int n = midend_which_preset(fe->me);
1878
1879 fe->preset_threaded = TRUE;
1880 if (n < 0 && fe->preset_custom) {
1881 gtk_check_menu_item_set_active(
1882 GTK_CHECK_MENU_ITEM(fe->preset_custom),
1883 TRUE);
1884 } else {
1885 GSList *gs = fe->preset_radio;
1886 GSList *found = NULL;
1887
1888 for (gs = fe->preset_radio; gs; gs = gs->next) {
1889 struct preset_menu_entry *entry =
1890 (struct preset_menu_entry *)g_object_get_data(
1891 G_OBJECT(gs->data), "user-data");
1892
1893 if (entry && entry->id != n)
1894 gtk_check_menu_item_set_active(
1895 GTK_CHECK_MENU_ITEM(gs->data), FALSE);
1896 else
1897 found = gs;
1898 }
1899 if (found)
1900 gtk_check_menu_item_set_active(
1901 GTK_CHECK_MENU_ITEM(found->data), FALSE);
1902 }
1903 fe->preset_threaded = FALSE;
1904
1905 /*
1906 * Update the greying on the Copy menu option.
1907 */
1908 if (fe->copy_menu_item) {
1909 int enabled = midend_can_format_as_text_now(fe->me);
1910 gtk_widget_set_sensitive(fe->copy_menu_item, enabled);
1911 }
1912}
1913
1914#if !GTK_CHECK_VERSION(3,0,0)
1915static gboolean not_size_allocated_yet(GtkWidget *w)
1916{
1917 /*
1918 * This function tests whether a widget has not yet taken up space
1919 * on the screen which it will occupy in future. (Therefore, it
1920 * returns true only if the widget does exist but does not have a
1921 * size allocation. A null widget is already taking up all the
1922 * space it ever will.)
1923 */
1924 if (!w)
1925 return FALSE; /* nonexistent widgets aren't a problem */
1926
1927#if GTK_CHECK_VERSION(2,18,0) /* skip if no gtk_widget_get_allocation */
1928 {
1929 GtkAllocation a;
1930 gtk_widget_get_allocation(w, &a);
1931 if (a.height == 0 || a.width == 0)
1932 return TRUE; /* widget exists but has no size yet */
1933 }
1934#endif
1935
1936 return FALSE;
1937}
1938
1939static void try_shrink_drawing_area(frontend *fe)
1940{
1941 if (fe->drawing_area_shrink_pending &&
1942 (!fe->menubar_is_local || !not_size_allocated_yet(fe->menubar)) &&
1943 !not_size_allocated_yet(fe->statusbar)) {
1944 /*
1945 * In order to permit the user to resize the window smaller as
1946 * well as bigger, we call this function after the window size
1947 * has ended up where we want it. This shouldn't shrink the
1948 * window immediately; it just arranges that the next time the
1949 * user tries to shrink it, they can.
1950 *
1951 * However, at puzzle creation time, we defer the first of
1952 * these operations until after the menu bar and status bar
1953 * are actually visible. On Ubuntu 12.04 I've found that these
1954 * can take a while to be displayed, and that it's a mistake
1955 * to reduce the drawing area's size allocation before they've
1956 * turned up or else the drawing area makes room for them by
1957 * shrinking to less than the size we intended.
1958 */
1959 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), 1, 1);
1960 fe->drawing_area_shrink_pending = FALSE;
1961 }
1962}
1963#endif /* !GTK_CHECK_VERSION(3,0,0) */
1964
1965static gint configure_window(GtkWidget *widget,
1966 GdkEventConfigure *event, gpointer data)
1967{
1968#if !GTK_CHECK_VERSION(3,0,0)
1969 /*
1970 * When the main puzzle window changes size, it might be because
1971 * the menu bar or status bar has turned up after starting off
1972 * absent, in which case we should have another go at enacting a
1973 * pending shrink of the drawing area.
1974 */
1975 frontend *fe = (frontend *)data;
1976 try_shrink_drawing_area(fe);
1977#endif
1978 return FALSE;
1979}
1980
1981#if GTK_CHECK_VERSION(3,0,0)
1982static int window_extra_height(frontend *fe)
1983{
1984 int ret = 0;
1985 if (fe->menubar) {
1986 GtkRequisition req;
1987 gtk_widget_get_preferred_size(fe->menubar, &req, NULL);
1988 ret += req.height;
1989 }
1990 if (fe->statusbar) {
1991 GtkRequisition req;
1992 gtk_widget_get_preferred_size(fe->statusbar, &req, NULL);
1993 ret += req.height;
1994 }
1995 return ret;
1996}
1997#endif
1998
1999static void resize_fe(frontend *fe)
2000{
2001 int x, y;
2002
2003 get_size(fe, &x, &y);
2004
2005#if GTK_CHECK_VERSION(3,0,0)
2006 gtk_window_resize(GTK_WINDOW(fe->window), x, y + window_extra_height(fe));
2007#else
2008 fe->drawing_area_shrink_pending = FALSE;
2009 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
2010 {
2011 GtkRequisition req;
2012 gtk_widget_size_request(GTK_WIDGET(fe->window), &req);
2013 gtk_window_resize(GTK_WINDOW(fe->window), req.width, req.height);
2014 }
2015 fe->drawing_area_shrink_pending = TRUE;
2016 try_shrink_drawing_area(fe);
2017#endif
2018}
2019
2020static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
2021{
2022 frontend *fe = (frontend *)data;
2023 struct preset_menu_entry *entry =
2024 (struct preset_menu_entry *)g_object_get_data(
2025 G_OBJECT(menuitem), "user-data");
2026
2027 if (fe->preset_threaded ||
2028 (GTK_IS_CHECK_MENU_ITEM(menuitem) &&
2029 !gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
2030 return;
2031 midend_set_params(fe->me, entry->params);
2032 midend_new_game(fe->me);
2033 changed_preset(fe);
2034 resize_fe(fe);
2035 midend_redraw(fe->me);
2036}
2037
2038GdkAtom compound_text_atom, utf8_string_atom;
2039int paste_initialised = FALSE;
2040
2041static void set_selection(frontend *fe, GdkAtom selection)
2042{
2043 if (!paste_initialised) {
2044 compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
2045 utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
2046 paste_initialised = TRUE;
2047 }
2048
2049 /*
2050 * For this simple application we can safely assume that the
2051 * data passed to this function is pure ASCII, which means we
2052 * can return precisely the same stuff for types STRING,
2053 * COMPOUND_TEXT or UTF8_STRING.
2054 */
2055
2056 if (gtk_selection_owner_set(fe->area, selection, CurrentTime)) {
2057 gtk_selection_clear_targets(fe->area, selection);
2058 gtk_selection_add_target(fe->area, selection,
2059 GDK_SELECTION_TYPE_STRING, 1);
2060 gtk_selection_add_target(fe->area, selection, compound_text_atom, 1);
2061 gtk_selection_add_target(fe->area, selection, utf8_string_atom, 1);
2062 }
2063}
2064
2065void write_clip(frontend *fe, char *data)
2066{
2067 if (fe->paste_data)
2068 sfree(fe->paste_data);
2069
2070 fe->paste_data = data;
2071 fe->paste_data_len = strlen(data);
2072
2073 set_selection(fe, GDK_SELECTION_PRIMARY);
2074 set_selection(fe, GDK_SELECTION_CLIPBOARD);
2075}
2076
2077void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
2078 guint info, guint time_stamp, gpointer data)
2079{
2080 frontend *fe = (frontend *)data;
2081 gtk_selection_data_set(seldata, gtk_selection_data_get_target(seldata), 8,
2082 fe->paste_data, fe->paste_data_len);
2083}
2084
2085gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
2086 gpointer data)
2087{
2088 frontend *fe = (frontend *)data;
2089
2090 if (fe->paste_data)
2091 sfree(fe->paste_data);
2092 fe->paste_data = NULL;
2093 fe->paste_data_len = 0;
2094 return TRUE;
2095}
2096
2097static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
2098{
2099 frontend *fe = (frontend *)data;
2100 char *text;
2101
2102 text = midend_text_format(fe->me);
2103
2104 if (text) {
2105 write_clip(fe, text);
2106 } else {
2107 gdk_beep();
2108 }
2109}
2110
2111#ifdef OLD_FILESEL
2112
2113static void filesel_ok(GtkButton *button, gpointer data)
2114{
2115 frontend *fe = (frontend *)data;
2116
2117 gpointer filesel = g_object_get_data(G_OBJECT(button), "user-data");
2118
2119 const char *name =
2120 gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
2121
2122 fe->filesel_name = dupstr(name);
2123}
2124
2125static char *file_selector(frontend *fe, char *title, int save)
2126{
2127 GtkWidget *filesel =
2128 gtk_file_selection_new(title);
2129
2130 fe->filesel_name = NULL;
2131
2132 gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
2133 g_object_set_data
2134 (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "user-data",
2135 (gpointer)filesel);
2136 g_signal_connect
2137 (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
2138 G_CALLBACK(filesel_ok), fe);
2139 g_signal_connect_swapped
2140 (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
2141 G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
2142 g_signal_connect_object
2143 (G_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button), "clicked",
2144 G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
2145 g_signal_connect(G_OBJECT(filesel), "destroy",
2146 G_CALLBACK(window_destroy), NULL);
2147 gtk_widget_show(filesel);
2148 gtk_window_set_transient_for(GTK_WINDOW(filesel), GTK_WINDOW(fe->window));
2149 gtk_main();
2150
2151 return fe->filesel_name;
2152}
2153
2154#else
2155
2156static char *file_selector(frontend *fe, char *title, int save)
2157{
2158 char *filesel_name = NULL;
2159
2160 GtkWidget *filesel =
2161 gtk_file_chooser_dialog_new(title,
2162 GTK_WINDOW(fe->window),
2163 save ? GTK_FILE_CHOOSER_ACTION_SAVE :
2164 GTK_FILE_CHOOSER_ACTION_OPEN,
2165 LABEL_CANCEL, GTK_RESPONSE_CANCEL,
2166 save ? LABEL_SAVE : LABEL_OPEN,
2167 GTK_RESPONSE_ACCEPT,
2168 NULL);
2169
2170 if (gtk_dialog_run(GTK_DIALOG(filesel)) == GTK_RESPONSE_ACCEPT) {
2171 char *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(filesel));
2172 filesel_name = dupstr(name);
2173 g_free(name);
2174 }
2175
2176 gtk_widget_destroy(filesel);
2177
2178 return filesel_name;
2179}
2180
2181#endif
2182
2183struct savefile_write_ctx {
2184 FILE *fp;
2185 int error;
2186};
2187
2188static void savefile_write(void *wctx, void *buf, int len)
2189{
2190 struct savefile_write_ctx *ctx = (struct savefile_write_ctx *)wctx;
2191 if (fwrite(buf, 1, len, ctx->fp) < len)
2192 ctx->error = errno;
2193}
2194
2195static int savefile_read(void *wctx, void *buf, int len)
2196{
2197 FILE *fp = (FILE *)wctx;
2198 int ret;
2199
2200 ret = fread(buf, 1, len, fp);
2201 return (ret == len);
2202}
2203
2204static void menu_save_event(GtkMenuItem *menuitem, gpointer data)
2205{
2206 frontend *fe = (frontend *)data;
2207 char *name;
2208
2209 name = file_selector(fe, "Enter name of game file to save", TRUE);
2210
2211 if (name) {
2212 FILE *fp;
2213
2214 if ((fp = fopen(name, "r")) != NULL) {
2215 char buf[256 + FILENAME_MAX];
2216 fclose(fp);
2217 /* file exists */
2218
2219 sprintf(buf, "Are you sure you want to overwrite the"
2220 " file \"%.*s\"?",
2221 FILENAME_MAX, name);
2222 if (!message_box(fe->window, "Question", buf, TRUE, MB_YESNO))
2223 goto free_and_return;
2224 }
2225
2226 fp = fopen(name, "w");
2227
2228 if (!fp) {
2229 error_box(fe->window, "Unable to open save file");
2230 goto free_and_return;
2231 }
2232
2233 {
2234 struct savefile_write_ctx ctx;
2235 ctx.fp = fp;
2236 ctx.error = 0;
2237 midend_serialise(fe->me, savefile_write, &ctx);
2238 fclose(fp);
2239 if (ctx.error) {
2240 char boxmsg[512];
2241 sprintf(boxmsg, "Error writing save file: %.400s",
2242 strerror(errno));
2243 error_box(fe->window, boxmsg);
2244 goto free_and_return;
2245 }
2246 }
2247 free_and_return:
2248 sfree(name);
2249 }
2250}
2251
2252static void menu_load_event(GtkMenuItem *menuitem, gpointer data)
2253{
2254 frontend *fe = (frontend *)data;
2255 char *name, *err;
2256
2257 name = file_selector(fe, "Enter name of saved game file to load", FALSE);
2258
2259 if (name) {
2260 FILE *fp = fopen(name, "r");
2261 sfree(name);
2262
2263 if (!fp) {
2264 error_box(fe->window, "Unable to open saved game file");
2265 return;
2266 }
2267
2268 err = midend_deserialise(fe->me, savefile_read, fp);
2269
2270 fclose(fp);
2271
2272 if (err) {
2273 error_box(fe->window, err);
2274 return;
2275 }
2276
2277 changed_preset(fe);
2278 resize_fe(fe);
2279 midend_redraw(fe->me);
2280 }
2281}
2282
2283static void menu_solve_event(GtkMenuItem *menuitem, gpointer data)
2284{
2285 frontend *fe = (frontend *)data;
2286 char *msg;
2287
2288 msg = midend_solve(fe->me);
2289
2290 if (msg)
2291 error_box(fe->window, msg);
2292}
2293
2294static void menu_restart_event(GtkMenuItem *menuitem, gpointer data)
2295{
2296 frontend *fe = (frontend *)data;
2297
2298 midend_restart_game(fe->me);
2299}
2300
2301static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
2302{
2303 frontend *fe = (frontend *)data;
2304 int which = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(menuitem),
2305 "user-data"));
2306
2307 if (fe->preset_threaded ||
2308 (GTK_IS_CHECK_MENU_ITEM(menuitem) &&
2309 !gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem))))
2310 return;
2311 changed_preset(fe); /* Put the old preset back! */
2312 if (!get_config(fe, which))
2313 return;
2314
2315 midend_new_game(fe->me);
2316 resize_fe(fe);
2317 midend_redraw(fe->me);
2318}
2319
2320static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
2321{
2322 frontend *fe = (frontend *)data;
2323
2324#if GTK_CHECK_VERSION(3,0,0)
2325 extern char *const *const xpm_icons[];
2326 extern const int n_xpm_icons;
2327 GdkPixbuf *icon = gdk_pixbuf_new_from_xpm_data
2328 ((const gchar **)xpm_icons[n_xpm_icons-1]);
2329 gtk_show_about_dialog
2330 (GTK_WINDOW(fe->window),
2331 "program-name", thegame.name,
2332 "version", ver,
2333 "comments", "Part of Simon Tatham's Portable Puzzle Collection",
2334 "logo", icon,
2335 (const gchar *)NULL);
2336 g_object_unref(G_OBJECT(icon));
2337#else
2338 char titlebuf[256];
2339 char textbuf[1024];
2340
2341 sprintf(titlebuf, "About %.200s", thegame.name);
2342 sprintf(textbuf,
2343 "%.200s\n\n"
2344 "from Simon Tatham's Portable Puzzle Collection\n\n"
2345 "%.500s", thegame.name, ver);
2346
2347 message_box(fe->window, titlebuf, textbuf, TRUE, MB_OK);
2348#endif
2349}
2350
2351static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
2352 char *text, int key)
2353{
2354 GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
2355 int keyqual;
2356 gtk_container_add(cont, menuitem);
2357 g_object_set_data(G_OBJECT(menuitem), "user-data", GINT_TO_POINTER(key));
2358 g_signal_connect(G_OBJECT(menuitem), "activate",
2359 G_CALLBACK(menu_key_event), fe);
2360 switch (key & ~0x1F) {
2361 case 0x00:
2362 key += 0x60;
2363 keyqual = GDK_CONTROL_MASK;
2364 break;
2365 case 0x40:
2366 key += 0x20;
2367 keyqual = GDK_SHIFT_MASK;
2368 break;
2369 default:
2370 keyqual = 0;
2371 break;
2372 }
2373 gtk_widget_add_accelerator(menuitem,
2374 "activate", fe->accelgroup,
2375 key, keyqual,
2376 GTK_ACCEL_VISIBLE);
2377 gtk_widget_show(menuitem);
2378 return menuitem;
2379}
2380
2381static void add_menu_separator(GtkContainer *cont)
2382{
2383 GtkWidget *menuitem = gtk_menu_item_new();
2384 gtk_container_add(cont, menuitem);
2385 gtk_widget_show(menuitem);
2386}
2387
2388static void populate_gtk_preset_menu(frontend *fe, struct preset_menu *menu,
2389 GtkWidget *gtkmenu)
2390{
2391 int i;
2392
2393 for (i = 0; i < menu->n_entries; i++) {
2394 struct preset_menu_entry *entry = &menu->entries[i];
2395 GtkWidget *menuitem;
2396
2397 if (entry->params) {
2398 menuitem = gtk_radio_menu_item_new_with_label(
2399 fe->preset_radio, entry->title);
2400 fe->preset_radio = gtk_radio_menu_item_get_group(
2401 GTK_RADIO_MENU_ITEM(menuitem));
2402 g_object_set_data(G_OBJECT(menuitem), "user-data", entry);
2403 g_signal_connect(G_OBJECT(menuitem), "activate",
2404 G_CALLBACK(menu_preset_event), fe);
2405 } else {
2406 GtkWidget *submenu;
2407 menuitem = gtk_menu_item_new_with_label(entry->title);
2408 submenu = gtk_menu_new();
2409 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
2410 populate_gtk_preset_menu(fe, entry->submenu, submenu);
2411 }
2412
2413 gtk_container_add(GTK_CONTAINER(gtkmenu), menuitem);
2414 gtk_widget_show(menuitem);
2415 }
2416}
2417
2418enum { ARG_EITHER, ARG_SAVE, ARG_ID }; /* for argtype */
2419
2420static frontend *new_window(char *arg, int argtype, char **error)
2421{
2422 frontend *fe;
2423 GtkBox *vbox, *hbox;
2424 GtkWidget *menu, *menuitem;
2425 GList *iconlist;
2426 int x, y, n;
2427 char errbuf[1024];
2428 extern char *const *const xpm_icons[];
2429 extern const int n_xpm_icons;
2430 struct preset_menu *preset_menu;
2431
2432 fe = snew(frontend);
2433#if GTK_CHECK_VERSION(3,20,0)
2434 fe->css_provider = NULL;
2435#endif
2436
2437 fe->timer_active = FALSE;
2438 fe->timer_id = -1;
2439
2440 fe->me = midend_new(fe, &thegame, &gtk_drawing, fe);
2441
2442 if (arg) {
2443 char *err;
2444 FILE *fp;
2445
2446 errbuf[0] = '\0';
2447
2448 switch (argtype) {
2449 case ARG_ID:
2450 err = midend_game_id(fe->me, arg);
2451 if (!err)
2452 midend_new_game(fe->me);
2453 else
2454 sprintf(errbuf, "Invalid game ID: %.800s", err);
2455 break;
2456 case ARG_SAVE:
2457 fp = fopen(arg, "r");
2458 if (!fp) {
2459 sprintf(errbuf, "Error opening file: %.800s", strerror(errno));
2460 } else {
2461 err = midend_deserialise(fe->me, savefile_read, fp);
2462 if (err)
2463 sprintf(errbuf, "Invalid save file: %.800s", err);
2464 fclose(fp);
2465 }
2466 break;
2467 default /*case ARG_EITHER*/:
2468 /*
2469 * First try treating the argument as a game ID.
2470 */
2471 err = midend_game_id(fe->me, arg);
2472 if (!err) {
2473 /*
2474 * It's a valid game ID.
2475 */
2476 midend_new_game(fe->me);
2477 } else {
2478 FILE *fp = fopen(arg, "r");
2479 if (!fp) {
2480 sprintf(errbuf, "Supplied argument is neither a game ID (%.400s)"
2481 " nor a save file (%.400s)", err, strerror(errno));
2482 } else {
2483 err = midend_deserialise(fe->me, savefile_read, fp);
2484 if (err)
2485 sprintf(errbuf, "%.800s", err);
2486 fclose(fp);
2487 }
2488 }
2489 break;
2490 }
2491 if (*errbuf) {
2492 *error = dupstr(errbuf);
2493 midend_free(fe->me);
2494 sfree(fe);
2495 return NULL;
2496 }
2497
2498 } else {
2499 midend_new_game(fe->me);
2500 }
2501
2502#if !GTK_CHECK_VERSION(3,0,0)
2503 {
2504 /*
2505 * try_shrink_drawing_area() will do some fiddling with the
2506 * window size request (see comment in that function) after
2507 * all the bits and pieces such as the menu bar and status bar
2508 * have appeared in the puzzle window.
2509 *
2510 * However, on Unity systems, the menu bar _doesn't_ appear in
2511 * the puzzle window, because the Unity shell hijacks it into
2512 * the menu bar at the very top of the screen. We therefore
2513 * try to detect that situation here, so that we don't sit
2514 * here forever waiting for a menu bar.
2515 */
2516 const char prop[] = "gtk-shell-shows-menubar";
2517 GtkSettings *settings = gtk_settings_get_default();
2518 if (!g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
2519 prop)) {
2520 fe->menubar_is_local = TRUE;
2521 } else {
2522 int unity_mode;
2523 g_object_get(gtk_settings_get_default(),
2524 prop, &unity_mode,
2525 (const gchar *)NULL);
2526 fe->menubar_is_local = !unity_mode;
2527 }
2528 }
2529#endif
2530
2531 fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2532 gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
2533
2534 vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
2535 gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
2536 gtk_widget_show(GTK_WIDGET(vbox));
2537
2538 fe->accelgroup = gtk_accel_group_new();
2539 gtk_window_add_accel_group(GTK_WINDOW(fe->window), fe->accelgroup);
2540
2541 hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
2542 gtk_box_pack_start(vbox, GTK_WIDGET(hbox), FALSE, FALSE, 0);
2543 gtk_widget_show(GTK_WIDGET(hbox));
2544
2545 fe->menubar = gtk_menu_bar_new();
2546 gtk_box_pack_start(hbox, fe->menubar, TRUE, TRUE, 0);
2547 gtk_widget_show(fe->menubar);
2548
2549 menuitem = gtk_menu_item_new_with_mnemonic("_Game");
2550 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2551 gtk_widget_show(menuitem);
2552
2553 menu = gtk_menu_new();
2554 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
2555
2556 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
2557
2558 menuitem = gtk_menu_item_new_with_label("Restart");
2559 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2560 g_signal_connect(G_OBJECT(menuitem), "activate",
2561 G_CALLBACK(menu_restart_event), fe);
2562 gtk_widget_show(menuitem);
2563
2564 menuitem = gtk_menu_item_new_with_label("Specific...");
2565 g_object_set_data(G_OBJECT(menuitem), "user-data",
2566 GINT_TO_POINTER(CFG_DESC));
2567 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2568 g_signal_connect(G_OBJECT(menuitem), "activate",
2569 G_CALLBACK(menu_config_event), fe);
2570 gtk_widget_show(menuitem);
2571
2572 menuitem = gtk_menu_item_new_with_label("Random Seed...");
2573 g_object_set_data(G_OBJECT(menuitem), "user-data",
2574 GINT_TO_POINTER(CFG_SEED));
2575 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2576 g_signal_connect(G_OBJECT(menuitem), "activate",
2577 G_CALLBACK(menu_config_event), fe);
2578 gtk_widget_show(menuitem);
2579
2580 fe->preset_radio = NULL;
2581 fe->preset_custom = NULL;
2582 fe->preset_threaded = FALSE;
2583
2584 preset_menu = midend_get_presets(fe->me, NULL);
2585 if (preset_menu->n_entries > 0 || thegame.can_configure) {
2586 GtkWidget *submenu;
2587
2588 menuitem = gtk_menu_item_new_with_mnemonic("_Type");
2589 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2590 gtk_widget_show(menuitem);
2591
2592 submenu = gtk_menu_new();
2593 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
2594
2595 populate_gtk_preset_menu(fe, preset_menu, submenu);
2596
2597 if (thegame.can_configure) {
2598 menuitem = fe->preset_custom =
2599 gtk_radio_menu_item_new_with_label(fe->preset_radio,
2600 "Custom...");
2601 fe->preset_radio =
2602 gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(menuitem));
2603 gtk_container_add(GTK_CONTAINER(submenu), menuitem);
2604 g_object_set_data(G_OBJECT(menuitem), "user-data",
2605 GINT_TO_POINTER(CFG_SETTINGS));
2606 g_signal_connect(G_OBJECT(menuitem), "activate",
2607 G_CALLBACK(menu_config_event), fe);
2608 gtk_widget_show(menuitem);
2609 }
2610
2611 }
2612
2613 add_menu_separator(GTK_CONTAINER(menu));
2614 menuitem = gtk_menu_item_new_with_label("Load...");
2615 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2616 g_signal_connect(G_OBJECT(menuitem), "activate",
2617 G_CALLBACK(menu_load_event), fe);
2618 gtk_widget_show(menuitem);
2619 menuitem = gtk_menu_item_new_with_label("Save...");
2620 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2621 g_signal_connect(G_OBJECT(menuitem), "activate",
2622 G_CALLBACK(menu_save_event), fe);
2623 gtk_widget_show(menuitem);
2624#ifndef STYLUS_BASED
2625 add_menu_separator(GTK_CONTAINER(menu));
2626 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
2627 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", 'r');
2628#endif
2629 if (thegame.can_format_as_text_ever) {
2630 add_menu_separator(GTK_CONTAINER(menu));
2631 menuitem = gtk_menu_item_new_with_label("Copy");
2632 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2633 g_signal_connect(G_OBJECT(menuitem), "activate",
2634 G_CALLBACK(menu_copy_event), fe);
2635 gtk_widget_show(menuitem);
2636 fe->copy_menu_item = menuitem;
2637 } else {
2638 fe->copy_menu_item = NULL;
2639 }
2640 if (thegame.can_solve) {
2641 add_menu_separator(GTK_CONTAINER(menu));
2642 menuitem = gtk_menu_item_new_with_label("Solve");
2643 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2644 g_signal_connect(G_OBJECT(menuitem), "activate",
2645 G_CALLBACK(menu_solve_event), fe);
2646 gtk_widget_show(menuitem);
2647 }
2648 add_menu_separator(GTK_CONTAINER(menu));
2649 add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
2650
2651 menuitem = gtk_menu_item_new_with_mnemonic("_Help");
2652 gtk_container_add(GTK_CONTAINER(fe->menubar), menuitem);
2653 gtk_widget_show(menuitem);
2654
2655 menu = gtk_menu_new();
2656 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
2657
2658 menuitem = gtk_menu_item_new_with_label("About");
2659 gtk_container_add(GTK_CONTAINER(menu), menuitem);
2660 g_signal_connect(G_OBJECT(menuitem), "activate",
2661 G_CALLBACK(menu_about_event), fe);
2662 gtk_widget_show(menuitem);
2663
2664#ifdef STYLUS_BASED
2665 menuitem=gtk_button_new_with_mnemonic("_Redo");
2666 g_object_set_data(G_OBJECT(menuitem), "user-data",
2667 GINT_TO_POINTER((int)('r')));
2668 g_signal_connect(G_OBJECT(menuitem), "clicked",
2669 G_CALLBACK(menu_key_event), fe);
2670 gtk_box_pack_end(hbox, menuitem, FALSE, FALSE, 0);
2671 gtk_widget_show(menuitem);
2672
2673 menuitem=gtk_button_new_with_mnemonic("_Undo");
2674 g_object_set_data(G_OBJECT(menuitem), "user-data",
2675 GINT_TO_POINTER((int)('u')));
2676 g_signal_connect(G_OBJECT(menuitem), "clicked",
2677 G_CALLBACK(menu_key_event), fe);
2678 gtk_box_pack_end(hbox, menuitem, FALSE, FALSE, 0);
2679 gtk_widget_show(menuitem);
2680
2681 if (thegame.flags & REQUIRE_NUMPAD) {
2682 hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
2683 gtk_box_pack_start(vbox, GTK_WIDGET(hbox), FALSE, FALSE, 0);
2684 gtk_widget_show(GTK_WIDGET(hbox));
2685
2686 *((int*)errbuf)=0;
2687 errbuf[1]='\0';
2688 for(errbuf[0]='0';errbuf[0]<='9';errbuf[0]++) {
2689 menuitem=gtk_button_new_with_label(errbuf);
2690 g_object_set_data(G_OBJECT(menuitem), "user-data",
2691 GINT_TO_POINTER((int)(errbuf[0])));
2692 g_signal_connect(G_OBJECT(menuitem), "clicked",
2693 G_CALLBACK(menu_key_event), fe);
2694 gtk_box_pack_start(hbox, menuitem, TRUE, TRUE, 0);
2695 gtk_widget_show(menuitem);
2696 }
2697 }
2698#endif /* STYLUS_BASED */
2699
2700 changed_preset(fe);
2701
2702 snaffle_colours(fe);
2703
2704 if (midend_wants_statusbar(fe->me)) {
2705 GtkWidget *viewport;
2706 GtkRequisition req;
2707
2708 viewport = gtk_viewport_new(NULL, NULL);
2709 gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
2710 fe->statusbar = gtk_statusbar_new();
2711 gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
2712 gtk_widget_show(viewport);
2713 gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
2714 gtk_widget_show(fe->statusbar);
2715 fe->statusctx = gtk_statusbar_get_context_id
2716 (GTK_STATUSBAR(fe->statusbar), "game");
2717 gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
2718 DEFAULT_STATUSBAR_TEXT);
2719#if GTK_CHECK_VERSION(3,0,0)
2720 gtk_widget_get_preferred_size(fe->statusbar, &req, NULL);
2721#else
2722 gtk_widget_size_request(fe->statusbar, &req);
2723#endif
2724 gtk_widget_set_size_request(viewport, -1, req.height);
2725 } else
2726 fe->statusbar = NULL;
2727
2728 fe->area = gtk_drawing_area_new();
2729#if GTK_CHECK_VERSION(2,0,0) && !GTK_CHECK_VERSION(3,0,0)
2730 gtk_widget_set_double_buffered(fe->area, FALSE);
2731#endif
2732 {
2733 GdkGeometry geom;
2734 geom.base_width = 0;
2735#if GTK_CHECK_VERSION(3,0,0)
2736 geom.base_height = window_extra_height(fe);
2737 gtk_window_set_geometry_hints(GTK_WINDOW(fe->window), NULL,
2738 &geom, GDK_HINT_BASE_SIZE);
2739#else
2740 geom.base_height = 0;
2741 gtk_window_set_geometry_hints(GTK_WINDOW(fe->window), fe->area,
2742 &geom, GDK_HINT_BASE_SIZE);
2743#endif
2744 }
2745 fe->w = -1;
2746 fe->h = -1;
2747 get_size(fe, &x, &y);
2748#if GTK_CHECK_VERSION(3,0,0)
2749 gtk_window_set_default_size(GTK_WINDOW(fe->window),
2750 x, y + window_extra_height(fe));
2751#else
2752 fe->drawing_area_shrink_pending = FALSE;
2753 gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
2754#endif
2755
2756 gtk_box_pack_end(vbox, fe->area, TRUE, TRUE, 0);
2757
2758 clear_backing_store(fe);
2759 fe->fonts = NULL;
2760 fe->nfonts = fe->fontsize = 0;
2761
2762 fe->paste_data = NULL;
2763 fe->paste_data_len = 0;
2764
2765 g_signal_connect(G_OBJECT(fe->window), "destroy",
2766 G_CALLBACK(destroy), fe);
2767 g_signal_connect(G_OBJECT(fe->window), "key_press_event",
2768 G_CALLBACK(key_event), fe);
2769 g_signal_connect(G_OBJECT(fe->area), "button_press_event",
2770 G_CALLBACK(button_event), fe);
2771 g_signal_connect(G_OBJECT(fe->area), "button_release_event",
2772 G_CALLBACK(button_event), fe);
2773 g_signal_connect(G_OBJECT(fe->area), "motion_notify_event",
2774 G_CALLBACK(motion_event), fe);
2775 g_signal_connect(G_OBJECT(fe->area), "selection_get",
2776 G_CALLBACK(selection_get), fe);
2777 g_signal_connect(G_OBJECT(fe->area), "selection_clear_event",
2778 G_CALLBACK(selection_clear), fe);
2779#if GTK_CHECK_VERSION(3,0,0)
2780 g_signal_connect(G_OBJECT(fe->area), "draw",
2781 G_CALLBACK(draw_area), fe);
2782#else
2783 g_signal_connect(G_OBJECT(fe->area), "expose_event",
2784 G_CALLBACK(expose_area), fe);
2785#endif
2786 g_signal_connect(G_OBJECT(fe->window), "map_event",
2787 G_CALLBACK(map_window), fe);
2788 g_signal_connect(G_OBJECT(fe->area), "configure_event",
2789 G_CALLBACK(configure_area), fe);
2790 g_signal_connect(G_OBJECT(fe->window), "configure_event",
2791 G_CALLBACK(configure_window), fe);
2792
2793 gtk_widget_add_events(GTK_WIDGET(fe->area),
2794 GDK_BUTTON_PRESS_MASK |
2795 GDK_BUTTON_RELEASE_MASK |
2796 GDK_BUTTON_MOTION_MASK |
2797 GDK_POINTER_MOTION_HINT_MASK);
2798
2799 if (n_xpm_icons) {
2800 gtk_window_set_icon(GTK_WINDOW(fe->window),
2801 gdk_pixbuf_new_from_xpm_data
2802 ((const gchar **)xpm_icons[0]));
2803
2804 iconlist = NULL;
2805 for (n = 0; n < n_xpm_icons; n++) {
2806 iconlist =
2807 g_list_append(iconlist,
2808 gdk_pixbuf_new_from_xpm_data((const gchar **)
2809 xpm_icons[n]));
2810 }
2811 gtk_window_set_icon_list(GTK_WINDOW(fe->window), iconlist);
2812 }
2813
2814 gtk_widget_show(fe->area);
2815 gtk_widget_show(fe->window);
2816
2817#if !GTK_CHECK_VERSION(3,0,0)
2818 fe->drawing_area_shrink_pending = TRUE;
2819 try_shrink_drawing_area(fe);
2820#endif
2821
2822 set_window_background(fe, 0);
2823
2824 return fe;
2825}
2826
2827char *fgetline(FILE *fp)
2828{
2829 char *ret = snewn(512, char);
2830 int size = 512, len = 0;
2831 while (fgets(ret + len, size - len, fp)) {
2832 len += strlen(ret + len);
2833 if (ret[len-1] == '\n')
2834 break; /* got a newline, we're done */
2835 size = len + 512;
2836 ret = sresize(ret, size, char);
2837 }
2838 if (len == 0) { /* first fgets returned NULL */
2839 sfree(ret);
2840 return NULL;
2841 }
2842 ret[len] = '\0';
2843 return ret;
2844}
2845
2846static void list_presets_from_menu(struct preset_menu *menu)
2847{
2848 int i;
2849
2850 for (i = 0; i < menu->n_entries; i++) {
2851 if (menu->entries[i].params) {
2852 char *paramstr = thegame.encode_params(
2853 menu->entries[i].params, TRUE);
2854 printf("%s %s\n", paramstr, menu->entries[i].title);
2855 sfree(paramstr);
2856 } else {
2857 list_presets_from_menu(menu->entries[i].submenu);
2858 }
2859 }
2860}
2861
2862int main(int argc, char **argv)
2863{
2864 char *pname = argv[0];
2865 char *error;
2866 int ngenerate = 0, print = FALSE, px = 1, py = 1;
2867 int time_generation = FALSE, test_solve = FALSE, list_presets = FALSE;
2868 int soln = FALSE, colour = FALSE;
2869 float scale = 1.0F;
2870 float redo_proportion = 0.0F;
2871 char *savefile = NULL, *savesuffix = NULL;
2872 char *arg = NULL;
2873 int argtype = ARG_EITHER;
2874 char *screenshot_file = NULL;
2875 int doing_opts = TRUE;
2876 int ac = argc;
2877 char **av = argv;
2878 char errbuf[500];
2879
2880 /*
2881 * Command line parsing in this function is rather fiddly,
2882 * because GTK wants to have a go at argc/argv _first_ - and
2883 * yet we can't let it, because gtk_init() will bomb out if it
2884 * can't open an X display, whereas in fact we want to permit
2885 * our --generate and --print modes to run without an X
2886 * display.
2887 *
2888 * So what we do is:
2889 * - we parse the command line ourselves, without modifying
2890 * argc/argv
2891 * - if we encounter an error which might plausibly be the
2892 * result of a GTK command line (i.e. not detailed errors in
2893 * particular options of ours) we store the error message
2894 * and terminate parsing.
2895 * - if we got enough out of the command line to know it
2896 * specifies a non-X mode of operation, we either display
2897 * the stored error and return failure, or if there is no
2898 * stored error we do the non-X operation and return
2899 * success.
2900 * - otherwise, we go straight to gtk_init().
2901 */
2902
2903 errbuf[0] = '\0';
2904 while (--ac > 0) {
2905 char *p = *++av;
2906 if (doing_opts && !strcmp(p, "--version")) {
2907 printf("%s, from Simon Tatham's Portable Puzzle Collection\n%s\n",
2908 thegame.name, ver);
2909 return 0;
2910 } else if (doing_opts && !strcmp(p, "--generate")) {
2911 if (--ac > 0) {
2912 ngenerate = atoi(*++av);
2913 if (!ngenerate) {
2914 fprintf(stderr, "%s: '--generate' expected a number\n",
2915 pname);
2916 return 1;
2917 }
2918 } else
2919 ngenerate = 1;
2920 } else if (doing_opts && !strcmp(p, "--time-generation")) {
2921 time_generation = TRUE;
2922 } else if (doing_opts && !strcmp(p, "--test-solve")) {
2923 test_solve = TRUE;
2924 } else if (doing_opts && !strcmp(p, "--list-presets")) {
2925 list_presets = TRUE;
2926 } else if (doing_opts && !strcmp(p, "--save")) {
2927 if (--ac > 0) {
2928 savefile = *++av;
2929 } else {
2930 fprintf(stderr, "%s: '--save' expected a filename\n",
2931 pname);
2932 return 1;
2933 }
2934 } else if (doing_opts && (!strcmp(p, "--save-suffix") ||
2935 !strcmp(p, "--savesuffix"))) {
2936 if (--ac > 0) {
2937 savesuffix = *++av;
2938 } else {
2939 fprintf(stderr, "%s: '--save-suffix' expected a filename\n",
2940 pname);
2941 return 1;
2942 }
2943 } else if (doing_opts && !strcmp(p, "--print")) {
2944 if (!thegame.can_print) {
2945 fprintf(stderr, "%s: this game does not support printing\n",
2946 pname);
2947 return 1;
2948 }
2949 print = TRUE;
2950 if (--ac > 0) {
2951 char *dim = *++av;
2952 if (sscanf(dim, "%dx%d", &px, &py) != 2) {
2953 fprintf(stderr, "%s: unable to parse argument '%s' to "
2954 "'--print'\n", pname, dim);
2955 return 1;
2956 }
2957 } else {
2958 px = py = 1;
2959 }
2960 } else if (doing_opts && !strcmp(p, "--scale")) {
2961 if (--ac > 0) {
2962 scale = atof(*++av);
2963 } else {
2964 fprintf(stderr, "%s: no argument supplied to '--scale'\n",
2965 pname);
2966 return 1;
2967 }
2968 } else if (doing_opts && !strcmp(p, "--redo")) {
2969 /*
2970 * This is an internal option which I don't expect
2971 * users to have any particular use for. The effect of
2972 * --redo is that once the game has been loaded and
2973 * initialised, the next move in the redo chain is
2974 * replayed, and the game screen is redrawn part way
2975 * through the making of the move. This is only
2976 * meaningful if there _is_ a next move in the redo
2977 * chain, which means in turn that this option is only
2978 * useful if you're also passing a save file on the
2979 * command line.
2980 *
2981 * This option is used by the script which generates
2982 * the puzzle icons and website screenshots, and I
2983 * don't imagine it's useful for anything else.
2984 * (Unless, I suppose, users don't like my screenshots
2985 * and want to generate their own in the same way for
2986 * some repackaged version of the puzzles.)
2987 */
2988 if (--ac > 0) {
2989 redo_proportion = atof(*++av);
2990 } else {
2991 fprintf(stderr, "%s: no argument supplied to '--redo'\n",
2992 pname);
2993 return 1;
2994 }
2995 } else if (doing_opts && !strcmp(p, "--screenshot")) {
2996 /*
2997 * Another internal option for the icon building
2998 * script. This causes a screenshot of the central
2999 * drawing area (i.e. not including the menu bar or
3000 * status bar) to be saved to a PNG file once the
3001 * window has been drawn, and then the application
3002 * quits immediately.
3003 */
3004 if (--ac > 0) {
3005 screenshot_file = *++av;
3006 } else {
3007 fprintf(stderr, "%s: no argument supplied to '--screenshot'\n",
3008 pname);
3009 return 1;
3010 }
3011 } else if (doing_opts && (!strcmp(p, "--with-solutions") ||
3012 !strcmp(p, "--with-solution") ||
3013 !strcmp(p, "--with-solns") ||
3014 !strcmp(p, "--with-soln") ||
3015 !strcmp(p, "--solutions") ||
3016 !strcmp(p, "--solution") ||
3017 !strcmp(p, "--solns") ||
3018 !strcmp(p, "--soln"))) {
3019 soln = TRUE;
3020 } else if (doing_opts && !strcmp(p, "--colour")) {
3021 if (!thegame.can_print_in_colour) {
3022 fprintf(stderr, "%s: this game does not support colour"
3023 " printing\n", pname);
3024 return 1;
3025 }
3026 colour = TRUE;
3027 } else if (doing_opts && !strcmp(p, "--load")) {
3028 argtype = ARG_SAVE;
3029 } else if (doing_opts && !strcmp(p, "--game")) {
3030 argtype = ARG_ID;
3031 } else if (doing_opts && !strcmp(p, "--")) {
3032 doing_opts = FALSE;
3033 } else if (!doing_opts || p[0] != '-') {
3034 if (arg) {
3035 fprintf(stderr, "%s: more than one argument supplied\n",
3036 pname);
3037 return 1;
3038 }
3039 arg = p;
3040 } else {
3041 sprintf(errbuf, "%.100s: unrecognised option '%.100s'\n",
3042 pname, p);
3043 break;
3044 }
3045 }
3046
3047 /*
3048 * Special standalone mode for generating puzzle IDs on the
3049 * command line. Useful for generating puzzles to be printed
3050 * out and solved offline (for puzzles where that even makes
3051 * sense - Solo, for example, is a lot more pencil-and-paper
3052 * friendly than Twiddle!)
3053 *
3054 * Usage:
3055 *
3056 * <puzzle-name> --generate [<n> [<params>]]
3057 *
3058 * <n>, if present, is the number of puzzle IDs to generate.
3059 * <params>, if present, is the same type of parameter string
3060 * you would pass to the puzzle when running it in GUI mode,
3061 * including optional extras such as the expansion factor in
3062 * Rectangles and the difficulty level in Solo.
3063 *
3064 * If you specify <params>, you must also specify <n> (although
3065 * you may specify it to be 1). Sorry; that was the
3066 * simplest-to-parse command-line syntax I came up with.
3067 */
3068 if (ngenerate > 0 || print || savefile || savesuffix) {
3069 int i, n = 1;
3070 midend *me;
3071 char *id;
3072 document *doc = NULL;
3073
3074 /*
3075 * If we're in this branch, we should display any pending
3076 * error message from the command line, since GTK isn't going
3077 * to take another crack at making sense of it.
3078 */
3079 if (*errbuf) {
3080 fputs(errbuf, stderr);
3081 return 1;
3082 }
3083
3084 n = ngenerate;
3085
3086 me = midend_new(NULL, &thegame, NULL, NULL);
3087 i = 0;
3088
3089 if (savefile && !savesuffix)
3090 savesuffix = "";
3091 if (!savefile && savesuffix)
3092 savefile = "";
3093
3094 if (print)
3095 doc = document_new(px, py, scale);
3096
3097 /*
3098 * In this loop, we either generate a game ID or read one
3099 * from stdin depending on whether we're in generate mode;
3100 * then we either write it to stdout or print it, depending
3101 * on whether we're in print mode. Thus, this loop handles
3102 * generate-to-stdout, print-from-stdin and generate-and-
3103 * immediately-print modes.
3104 *
3105 * (It could also handle a copy-stdin-to-stdout mode,
3106 * although there's currently no combination of options
3107 * which will cause this loop to be activated in that mode.
3108 * It wouldn't be _entirely_ pointless, though, because
3109 * stdin could contain bare params strings or random-seed
3110 * IDs, and stdout would contain nothing but fully
3111 * generated descriptive game IDs.)
3112 */
3113 while (ngenerate == 0 || i < n) {
3114 char *pstr, *err, *seed;
3115 struct rusage before, after;
3116
3117 if (ngenerate == 0) {
3118 pstr = fgetline(stdin);
3119 if (!pstr)
3120 break;
3121 pstr[strcspn(pstr, "\r\n")] = '\0';
3122 } else {
3123 if (arg) {
3124 pstr = snewn(strlen(arg) + 40, char);
3125
3126 strcpy(pstr, arg);
3127 if (i > 0 && strchr(arg, '#'))
3128 sprintf(pstr + strlen(pstr), "-%d", i);
3129 } else
3130 pstr = NULL;
3131 }
3132
3133 if (pstr) {
3134 err = midend_game_id(me, pstr);
3135 if (err) {
3136 fprintf(stderr, "%s: error parsing '%s': %s\n",
3137 pname, pstr, err);
3138 return 1;
3139 }
3140 }
3141
3142 if (time_generation)
3143 getrusage(RUSAGE_SELF, &before);
3144
3145 midend_new_game(me);
3146
3147 seed = midend_get_random_seed(me);
3148
3149 if (time_generation) {
3150 double elapsed;
3151
3152 getrusage(RUSAGE_SELF, &after);
3153
3154 elapsed = (after.ru_utime.tv_sec -
3155 before.ru_utime.tv_sec);
3156 elapsed += (after.ru_utime.tv_usec -
3157 before.ru_utime.tv_usec) / 1000000.0;
3158
3159 printf("%s %s: %.6f\n", thegame.name, seed, elapsed);
3160 }
3161
3162 if (test_solve && thegame.can_solve) {
3163 /*
3164 * Now destroy the aux_info in the midend, by means of
3165 * re-entering the same game id, and then try to solve
3166 * it.
3167 */
3168 char *game_id, *err;
3169
3170 game_id = midend_get_game_id(me);
3171 err = midend_game_id(me, game_id);
3172 if (err) {
3173 fprintf(stderr, "%s %s: game id re-entry error: %s\n",
3174 thegame.name, seed, err);
3175 return 1;
3176 }
3177 midend_new_game(me);
3178 sfree(game_id);
3179
3180 err = midend_solve(me);
3181 /*
3182 * If the solve operation returned the error "Solution
3183 * not known for this puzzle", that's OK, because that
3184 * just means it's a puzzle for which we don't have an
3185 * algorithmic solver and hence can't solve it without
3186 * the aux_info, e.g. Netslide. Any other error is a
3187 * problem, though.
3188 */
3189 if (err && strcmp(err, "Solution not known for this puzzle")) {
3190 fprintf(stderr, "%s %s: solve error: %s\n",
3191 thegame.name, seed, err);
3192 return 1;
3193 }
3194 }
3195
3196 sfree(pstr);
3197 sfree(seed);
3198
3199 if (doc) {
3200 err = midend_print_puzzle(me, doc, soln);
3201 if (err) {
3202 fprintf(stderr, "%s: error in printing: %s\n", pname, err);
3203 return 1;
3204 }
3205 }
3206 if (savefile) {
3207 struct savefile_write_ctx ctx;
3208 char *realname = snewn(40 + strlen(savefile) +
3209 strlen(savesuffix), char);
3210 sprintf(realname, "%s%d%s", savefile, i, savesuffix);
3211
3212 if (soln) {
3213 char *err = midend_solve(me);
3214 if (err) {
3215 fprintf(stderr, "%s: unable to show solution: %s\n",
3216 realname, err);
3217 return 1;
3218 }
3219 }
3220
3221 ctx.fp = fopen(realname, "w");
3222 if (!ctx.fp) {
3223 fprintf(stderr, "%s: open: %s\n", realname,
3224 strerror(errno));
3225 return 1;
3226 }
3227 ctx.error = 0;
3228 midend_serialise(me, savefile_write, &ctx);
3229 if (ctx.error) {
3230 fprintf(stderr, "%s: write: %s\n", realname,
3231 strerror(ctx.error));
3232 return 1;
3233 }
3234 if (fclose(ctx.fp)) {
3235 fprintf(stderr, "%s: close: %s\n", realname,
3236 strerror(errno));
3237 return 1;
3238 }
3239 sfree(realname);
3240 }
3241 if (!doc && !savefile && !time_generation) {
3242 id = midend_get_game_id(me);
3243 puts(id);
3244 sfree(id);
3245 }
3246
3247 i++;
3248 }
3249
3250 if (doc) {
3251 psdata *ps = ps_init(stdout, colour);
3252 document_print(doc, ps_drawing_api(ps));
3253 document_free(doc);
3254 ps_free(ps);
3255 }
3256
3257 midend_free(me);
3258
3259 return 0;
3260 } else if (list_presets) {
3261 /*
3262 * Another specialist mode which causes the puzzle to list the
3263 * game_params strings for all its preset configurations.
3264 */
3265 midend *me;
3266 struct preset_menu *menu;
3267
3268 me = midend_new(NULL, &thegame, NULL, NULL);
3269 menu = midend_get_presets(me, NULL);
3270 list_presets_from_menu(menu);
3271 midend_free(me);
3272 return 0;
3273 } else {
3274 frontend *fe;
3275
3276 gtk_init(&argc, &argv);
3277
3278 fe = new_window(arg, argtype, &error);
3279
3280 if (!fe) {
3281 fprintf(stderr, "%s: %s\n", pname, error);
3282 return 1;
3283 }
3284
3285 if (screenshot_file) {
3286 /*
3287 * Some puzzles will not redraw their entire area if
3288 * given a partially completed animation, which means
3289 * we must redraw now and _then_ redraw again after
3290 * freezing the move timer.
3291 */
3292 midend_force_redraw(fe->me);
3293 }
3294
3295 if (redo_proportion) {
3296 /* Start a redo. */
3297 midend_process_key(fe->me, 0, 0, 'r');
3298 /* And freeze the timer at the specified position. */
3299 midend_freeze_timer(fe->me, redo_proportion);
3300 }
3301
3302 if (screenshot_file) {
3303 save_screenshot_png(fe, screenshot_file);
3304 exit(0);
3305 }
3306
3307 gtk_main();
3308 }
3309
3310 return 0;
3311}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-21 10:45:35 +0000