File: main.c

package info (click to toggle)
gplanarity 17906-7
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye, buster, sid, trixie
  • size: 732 kB
  • sloc: ansic: 8,776; makefile: 131; perl: 17; sed: 2
file content (364 lines) | stat: -rw-r--r-- 10,880 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
/*
 *
 *  gPlanarity: 
 *     The geeky little puzzle game with a big noodly crunch!
 *    
 *     gPlanarity copyright (C) 2005 Monty <monty@xiph.org>
 *     Original Flash game by John Tantalo <john.tantalo@case.edu>
 *     Original game concept by Mary Radcliffe
 *
 *  gPlanarity is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  gPlanarity is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with Postfish; see the file COPYING.  If not, write to the
 *  Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * 
 */

#define _GNU_SOURCE
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <math.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <gtk/gtk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <cairo-ft.h>
#include <time.h>
#include <fontconfig/fontconfig.h>
#include "version.h"
#include "graph.h"
#include "gameboard.h"
#include "levelstate.h"
#include "main.h"

#define boardstate "/.gPlanarity/boards/"
#define mainstate "/.gPlanarity/"

char *boarddir;
char *statedir;
Gameboard *gameboard;
GtkWidget *toplevel_window;
graph maingraph;

char *version = "";
static cairo_font_face_t *font_face=0;
static cairo_font_face_t *bold_face=0;
static cairo_font_face_t *ital_face=0;

static float adjust_x_normal;
static float adjust_y_normal;
static float adjust_x_bold;
static float adjust_y_bold;

static int dir_create(char *name){
  if(mkdir(name,0700)){
    switch(errno){
    case EEXIST:
      // this is ok
      return 0;
    default:
      fprintf(stderr,_("ERROR:  Could not create directory (%s) to save game state:\n\t%s\n"),
	      name,strerror(errno));
      return errno;
    }
  }
  return 0;
}     

void request_resize(int width, int height){
  gtk_window_resize(GTK_WINDOW(toplevel_window),width,height);
  if(gameboard->resize_timeout)
    gameboard->resize_timeout = time(NULL)+3;
  gameboard->resize_w = width;
  gameboard->resize_h = height;
}

static void clean_exit(int sig){
  signal(sig,SIG_IGN);
  if(sig!=SIGINT)
    fprintf(stderr,
            _("\nTrapped signal %d; saving state and exiting!\n"),sig);

  levelstate_write(statedir);
  gtk_main_quit();
  exit(0);
}

static void clean_exit_delete_post(Gameboard *g){
  gameboard = 0;
  gtk_main_quit();
}

static gint clean_exit_delete(gpointer p){
  levelstate_write(statedir);
  undeploy_buttons(gameboard,clean_exit_delete_post);
  return 1;  // we're handling it, don't continue the delete chain
}

/* font handling... still a pain in the ass!  ...but mostly due to
   lack of documentation.  

   Try first to find one of the default fonts we prefer (FontConfig
   can search for a list, Cairo cannot).

   Regardless of what's found, try to determine the approximate best
   aspect ratio of the text; gPlanarity looks best with a relatively
   tall/narrow font that renders with horizontal/vertical strokes of
   approximately identical width */

static cairo_font_face_t *init_font(char *list, int slant,int bold){
  cairo_font_face_t *ret;
  char *fontface;
  FcPattern *fc_pattern;
  FcBool scalable;
  FcResult res;
  
  fc_pattern = FcNameParse((unsigned char *)list);

  // load the system config
  FcConfigSubstitute(0, fc_pattern, FcMatchPattern);

  FcPatternDel(fc_pattern,FC_SLANT);
  FcPatternDel(fc_pattern,FC_WEIGHT);
  if(slant)
    FcPatternAddInteger(fc_pattern,FC_SLANT,FC_SLANT_ITALIC);
  if(bold)
    FcPatternAddInteger(fc_pattern,FC_WEIGHT,FC_WEIGHT_BOLD);

  // fill in missing defaults
  FcDefaultSubstitute(fc_pattern);
  // find a font face on our list if possible
  fc_pattern = FcFontMatch(0, fc_pattern, &res);

  if(!fc_pattern){
    fprintf(stderr,_("\nUnable to find any suitable %s fonts!\n"
	    "Continuing, but the the results are likely to be poor.\n\n"),

	    (slant?(bold?_("bold italic"):_("italic")):(bold?_("bold"):_("medium"))));
  }

  FcPatternGetString (fc_pattern, FC_FAMILY, 0, (FcChar8 **)&fontface);

  /*
  if(!strstr(list,fontface)){
    fprintf(stderr,"\nUnable to find any of gPlanarity's preferred %s fonts (%s);\n"
	    "Using system default font \"%s\".\n\n",
	    (slant?(bold?"bold italic":"italic"):(bold?"bold":"medium")),
	    list,fontface);
	    }*/

  FcPatternGetBool(fc_pattern, FC_SCALABLE, 0, &scalable);
  if (scalable != FcTrue) {
    fprintf(stderr,_("\nSelected %s font \"%s\" is not scalable!  This is almost as bad\n"
	    "as not finding any font at all.  Continuing, but this may look\n"
	    "very poor indeed.\n\n"),
	    (slant?(bold?_("bold italic"):_("italic")):(bold?_("bold"):_("medium"))), fontface);
  }
  
  /* Set the hinting behavior we want; only the autohinter is giving
     decent results across a wide range of sizes and face options.
     Don't obey the system config with respect to hinting; every one
     of my systems installed a default config that resulted in the
     available fonts looking like ass.  Bitstream Vera Sans especially
     looks bad without the autohinter, and that's the font most
     systems will have as the only sans default. */
  
  // Must remove the preexisting settings!  The settings are a list,
  // and we're tacking ours on the end; Cairo only inspects first hit
  FcPatternDel(fc_pattern,FC_HINT_STYLE);
  FcPatternDel(fc_pattern,FC_HINTING);
  FcPatternDel(fc_pattern,FC_AUTOHINT);

  // Add ours requesting autohint
  FcPatternAddBool(fc_pattern,FC_HINTING,FcTrue);
  FcPatternAddBool(fc_pattern,FC_AUTOHINT,FcTrue);

  // Make the font face
  ret = cairo_ft_font_face_create_for_pattern(fc_pattern);
  FcPatternDestroy(fc_pattern);
  return ret;
}

static void init_fonts(char *list){

  font_face = init_font(list,0,0);
  bold_face = init_font(list,0,1);
  ital_face = init_font(list,1,0);

  // We've done the best we can, font-choice-wise.  Determine an
  // aspect ratio correction for whatever font we've got.  Arial is
  // declared to be the ideal aspect, correct other fonts to the same
  // rough proportions (it looks better).  This is a rough hack, but
  // yields an unmistakable improvement.

  {
    cairo_text_extents_t ex;
    char *test_string = "Practice Before the Handbasket: Three of Three";
    cairo_surface_t *s = 
      cairo_image_surface_create (CAIRO_FORMAT_ARGB32,16,16);
    cairo_t *c = cairo_create(s);
    cairo_matrix_t m;
    
    cairo_set_font_face (c, font_face);
    cairo_matrix_init_scale (&m, 50.,50.);
    cairo_set_font_matrix (c,&m);
    cairo_text_extents (c, test_string, &ex);
    adjust_x_normal = 1058 / ex.width;
    adjust_y_normal = -37 / ex.y_bearing;


    cairo_set_font_face (c, bold_face);
    cairo_text_extents (c, test_string, &ex);
    adjust_x_bold = 1130 / ex.width;
    adjust_y_bold = -37 / ex.y_bearing;


    cairo_destroy(c);
    cairo_surface_destroy(s);
  }
}

void set_font (cairo_t *c, float w, float h, int slant, int bold){
  cairo_matrix_t m;

  if(slant){
    cairo_set_font_face(c,ital_face);
    cairo_matrix_init_scale (&m, ceil(w*adjust_x_normal),ceil(h*adjust_y_normal));
  }else if (bold){
    cairo_set_font_face(c,bold_face);
    cairo_matrix_init_scale (&m, ceil(w*adjust_x_bold),ceil(h*adjust_y_bold));
  }else{
    cairo_set_font_face(c,font_face);
    cairo_matrix_init_scale (&m, ceil(w*adjust_x_normal),ceil(h*adjust_y_normal));
  }
  cairo_set_font_matrix (c,&m);

}

#include "icon.h"
void set_icons(){
  GError *error=NULL;
  GList *pb=NULL;
  //GdkPixbufLoader *pbl1 = gdk_pixbuf_loader_new();
  GdkPixbufLoader *pbl2 = gdk_pixbuf_loader_new();
  GdkPixbufLoader *pbl3 = gdk_pixbuf_loader_new();

  //gdk_pixbuf_loader_write(pbl1,icon134,sizeof(icon134),&error);
  gdk_pixbuf_loader_write(pbl2,icon64,sizeof(icon64),&error);
  gdk_pixbuf_loader_write(pbl3,icon32,sizeof(icon32),&error);
  //gdk_pixbuf_loader_close(pbl1,NULL);
  gdk_pixbuf_loader_close(pbl2,NULL);
  gdk_pixbuf_loader_close(pbl3,NULL);

  //pb = g_list_append(pb, gdk_pixbuf_loader_get_pixbuf(pbl1));
  pb = g_list_append(pb, gdk_pixbuf_loader_get_pixbuf(pbl2));
  pb = g_list_append(pb, gdk_pixbuf_loader_get_pixbuf(pbl3));
  gtk_window_set_icon_list(GTK_WINDOW(toplevel_window),pb);

}

int main(int argc, char *argv[]){
#ifdef ENABLE_NLS
  setlocale(LC_ALL, "");
  textdomain(GT_DOMAIN);
  bindtextdomain(GT_DOMAIN, GT_DIR);
#endif

  char *homedir = getenv("home");
  if(!homedir)
    homedir = getenv("HOME");
  if(!homedir)
    homedir = getenv("homedir");
  if(!homedir)
    homedir = getenv("HOMEDIR");
  if(!homedir){
    fprintf(stderr,
        _("No homedir environment variable set!  gPlanarity will be\n"
	    "unable to permanently save any progress or board state.\n"));
    boarddir=NULL;
    statedir=NULL;
  }else{
    boarddir=calloc(strlen(homedir)+strlen(boardstate)+1,1);
    strcat(boarddir,homedir);
    strcat(boarddir,boardstate);

    statedir=calloc(strlen(homedir)+strlen(mainstate)+1,1);
    strcat(statedir,homedir);
    strcat(statedir,mainstate);

    dir_create(statedir);
    dir_create(boarddir);
  }

  version=strstr(VERSION,"version.h");
  if(version){
    char *versionend=strchr(version,' ');
    if(versionend)versionend=strchr(versionend+1,' ');
    if(versionend)versionend=strchr(versionend+1,' ');
    if(versionend)versionend=strchr(versionend+1,' ');
    if(versionend){
      int len=versionend-version-9;
      version=strdup(version+10);
      version[len-1]=0;
    }
  }else{
    version="";
  }

  init_fonts("");

  gtk_init (&argc, &argv);

  toplevel_window   = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  g_signal_connect (G_OBJECT (toplevel_window), "delete-event",
                    G_CALLBACK (clean_exit_delete), NULL);
  
  gameboard = gameboard_new();
  levelstate_read();

  gtk_container_add (GTK_CONTAINER (toplevel_window), GTK_WIDGET(gameboard));
  gtk_widget_realize(toplevel_window);
  gtk_widget_realize(GTK_WIDGET(gameboard));

  memset(&maingraph,0,sizeof(maingraph));

  /* get the setup processed before we fire up animations */
  while (gtk_events_pending ()){
    gtk_main_iteration ();
    gdk_window_process_updates(toplevel_window->window,1);
    gdk_flush();
  }

  levelstate_resume();
  set_icons();

  gtk_widget_show_all(toplevel_window);
  signal(SIGINT,clean_exit);

  //signal(SIGSEGV,clean_exit); /* would be a bad idea; corrupt state
  //could prevent us from restarting */

  gtk_main ();

  if(gameboard !=0 )
    levelstate_write();

  cairo_font_face_destroy(font_face);
  cairo_font_face_destroy(bold_face);
  cairo_font_face_destroy(ital_face);

  return 0;
}