demo/adg-demo.c

   1 #include "demo.h"
   2
   3 #include <adg-gtk.h>
   4 #include <math.h>
   5
   6 #define SQRT3   1.732050808
   7 #define CHAMFER 0.3
   8
   9
  10 typedef struct _AdgPart AdgPart;
  11
  12 struct _AdgPart {
  13     /* Raw data */
  14     gdouble     A, B, C;
  15     gdouble     DHOLE, LHOLE;
  16     gdouble     D1, D2, D3, D4, D5, D6, D7;
  17     gdouble     RD34, RD56;
  18     gdouble     LD2, LD3, LD5, LD6, LD7;
  19
  20     /* User interface widgets */
  21     AdgGtkArea *area;
  22     GHashTable *widgets;
  23     GtkButton  *apply, *reset;
  24
  25     /* Models */
  26     AdgPath    *shape, *hatch;
  27     AdgEdges   *edges;
  28 };
  29
  30
  31 static void
  32 _adg_version(void)
  33 {
  34     g_print("adg-demo " PACKAGE_VERSION "\n");
  35     exit(0);
  36 }
  37
  38 static void
  39 _adg_parse_args(gint *p_argc, gchar **p_argv[], gboolean *show_extents)
  40 {
  41     GError *error = NULL;
  42     GOptionEntry entries[] = {
  43         {"version", 'V', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
  44          _adg_version, "Display version information", NULL},
  45         {"show-extents", 'E', 0, G_OPTION_ARG_NONE,
  46          NULL, "Show the boundary boxes of every entity", NULL},
  47         {NULL}
  48     };
  49
  50     entries[1].arg_data = show_extents;
  51     *show_extents = FALSE;
  52     gtk_init_with_args(p_argc, p_argv, "- ADG demonstration program",
  53                        entries, GETTEXT_PACKAGE, &error);
  54
  55     if (error != NULL) {
  56         gint error_code = error->code;
  57
  58         g_printerr("%s\n", error->message);
  59
  60         g_error_free(error);
  61         exit(error_code);
  62     }
  63 }
  64
  65 static void
  66 _adg_define_hole(AdgPath *path, const AdgPart *part, gdouble height)
  67 {
  68     AdgModel *model;
  69     AdgPair pair;
  70
  71     model = ADG_MODEL(path);
  72
  73     pair.x = part->LHOLE;
  74     pair.y = 0;
  75     adg_path_move_to(path, &pair);
  76     adg_model_set_named_pair(model, "LHOLE", &pair);
  77
  78     pair.y = part->DHOLE / 2;
  79     pair.x -= pair.y / SQRT3;
  80     adg_path_line_to(path, &pair);
  81
  82     pair.x = 0;
  83     adg_path_line_to(path, &pair);
  84     adg_model_set_named_pair(model, "DHOLE", &pair);
  85
  86     pair.y = part->D1 / 2;
  87     adg_path_line_to(path, &pair);
  88     adg_model_set_named_pair(model, "D1I", &pair);
  89
  90     pair.x = height;
  91     adg_path_line_to(path, &pair);
  92     adg_model_set_named_pair(model, "D1F", &pair);
  93 }
  94
  95 static void
  96 _adg_define_hatch(AdgPath *path, const AdgPart *part)
  97 {
  98     _adg_define_hole(path, part, part->LHOLE + 2);
  99     adg_path_reflect(path, NULL);
 100     adg_path_close(path);
 101 }
 102
 103 static void
 104 _adg_define_shape(AdgPath *path, const AdgPart *part)
 105 {
 106     AdgModel *model;
 107     AdgPair pair, tmp;
 108     const AdgPrimitive *primitive;
 109
 110     pair.x = part->A - part->B - part->LD2;
 111     _adg_define_hole(path, part, pair.x);
 112     model = ADG_MODEL(path);
 113
 114     pair.x += (part->D1 - part->D2) / 2;
 115     pair.y = part->D2 / 2;
 116     adg_path_line_to(path, &pair);
 117     adg_model_set_named_pair(model, "D2I", &pair);
 118
 119     pair.x = part->A - part->B;
 120     adg_path_line_to(path, &pair);
 121     adg_path_fillet(path, 0.4);
 122
 123     pair.x = part->A - part->B;
 124     pair.y = part->D3 / 2;
 125     adg_path_line_to(path, &pair);
 126     adg_model_set_named_pair(model, "D3I", &pair);
 127
 128     pair.x = part->A;
 129     adg_model_set_named_pair(model, "East", &pair);
 130
 131     pair.x = 0;
 132     adg_model_set_named_pair(model, "West", &pair);
 133
 134     adg_path_chamfer(path, CHAMFER, CHAMFER);
 135
 136     pair.x = part->A - part->B + part->LD3;
 137     pair.y = part->D3 / 2;
 138     adg_path_line_to(path, &pair);
 139
 140     primitive = adg_path_over_primitive(path);
 141     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, 0));
 142     adg_model_set_named_pair(model, "D3I_X", &tmp);
 143
 144     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, -1));
 145     adg_model_set_named_pair(model, "D3I_Y", &tmp);
 146
 147     adg_path_chamfer(path, CHAMFER, CHAMFER);
 148
 149     pair.y = part->D4 / 2;
 150     adg_path_line_to(path, &pair);
 151
 152     primitive = adg_path_over_primitive(path);
 153     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, 0));
 154     adg_model_set_named_pair(model, "D3F_Y", &tmp);
 155     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, -1));
 156     adg_model_set_named_pair(model, "D3F_X", &tmp);
 157
 158     adg_path_fillet(path, part->RD34);
 159
 160     pair.x += part->RD34;
 161     adg_model_set_named_pair(model, "D4I", &pair);
 162
 163     pair.x = part->A - part->C - part->LD5;
 164     adg_path_line_to(path, &pair);
 165     adg_model_set_named_pair(model, "D4F", &pair);
 166
 167     pair.y = part->D3 / 2;
 168     adg_model_set_named_pair(model, "D4_POS", &pair);
 169
 170     primitive = adg_path_over_primitive(path);
 171     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, 0));
 172     tmp.x += part->RD34;
 173     adg_model_set_named_pair(model, "RD34", &tmp);
 174
 175     tmp.x -= cos(G_PI_4) * part->RD34,
 176     tmp.y -= sin(G_PI_4) * part->RD34,
 177     adg_model_set_named_pair(model, "RD34_R", &tmp);
 178
 179     tmp.x += part->RD34,
 180     tmp.y += part->RD34,
 181     adg_model_set_named_pair(model, "RD34_XY", &tmp);
 182
 183     pair.x += (part->D4 - part->D5) / 2;
 184     pair.y = part->D5 / 2;
 185     adg_path_line_to(path, &pair);
 186     adg_model_set_named_pair(model, "D5I", &pair);
 187
 188     pair.x = part->A - part->C;
 189     adg_path_line_to(path, &pair);
 190
 191     adg_path_fillet(path, 0.2);
 192
 193     pair.y = part->D6 / 2;
 194     adg_path_line_to(path, &pair);
 195
 196     primitive = adg_path_over_primitive(path);
 197     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, 0));
 198     adg_model_set_named_pair(model, "D5F", &tmp);
 199
 200     adg_path_fillet(path, 0.1);
 201
 202     pair.x += part->LD6;
 203     adg_path_line_to(path, &pair);
 204     adg_model_set_named_pair(model, "D6F", &pair);
 205
 206     primitive = adg_path_over_primitive(path);
 207     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, 0));
 208     adg_model_set_named_pair(model, "D6I_X", &tmp);
 209
 210     primitive = adg_path_over_primitive(path);
 211     cpml_pair_from_cairo(&tmp, cpml_primitive_get_point(primitive, -1));
 212     adg_model_set_named_pair(model, "D6I_Y", &tmp);
 213
 214     pair.x = part->A - part->LD7;
 215     pair.y -= (part->C - part->LD7 - part->LD6) / SQRT3;
 216     adg_path_line_to(path, &pair);
 217     adg_model_set_named_pair(model, "D67", &pair);
 218
 219     pair.y = part->D7 / 2;
 220     adg_path_line_to(path, &pair);
 221
 222     pair.x = part->A;
 223     adg_path_line_to(path, &pair);
 224     adg_model_set_named_pair(model, "D7F", &pair);
 225
 226     adg_path_reflect(path, NULL);
 227     adg_path_close(path);
 228     adg_path_move_to_explicit(path, part->LHOLE + 2, part->D1 / 2);
 229     adg_path_line_to_explicit(path, part->LHOLE + 2, -part->D1 / 2);
 230 }
 231
 232 static void
 233 _adg_part_lock(AdgPart *part)
 234 {
 235     gtk_widget_set_sensitive(GTK_WIDGET(part->apply), FALSE);
 236     gtk_widget_set_sensitive(GTK_WIDGET(part->reset), FALSE);
 237 }
 238
 239 static void
 240 _adg_part_unlock(AdgPart *part)
 241 {
 242     gtk_widget_set_sensitive(GTK_WIDGET(part->apply), TRUE);
 243     gtk_widget_set_sensitive(GTK_WIDGET(part->reset), TRUE);
 244 }
 245
 246 static void
 247 _adg_part_link(AdgPart *part, gpointer data, GObject *widget)
 248 {
 249     g_assert(GTK_IS_WIDGET(widget));
 250     g_object_ref(widget);
 251     g_hash_table_insert(part->widgets, data, widget);
 252
 253     if (GTK_IS_SPIN_BUTTON(widget)) {
 254         GtkSpinButton *spin_button = GTK_SPIN_BUTTON(widget);
 255         gtk_adjustment_value_changed(gtk_spin_button_get_adjustment(spin_button));
 256     }
 257
 258     g_signal_connect_swapped(widget, "changed",
 259                              G_CALLBACK(_adg_part_unlock), part);
 260 }
 261
 262 static void
 263 _adg_part_ui_to_data_double(AdgPart *part, gdouble *data)
 264 {
 265     GtkWidget *widget = g_hash_table_lookup(part->widgets, data);
 266
 267     g_assert(GTK_IS_WIDGET(widget));
 268
 269     *data = gtk_spin_button_get_value(GTK_SPIN_BUTTON(widget));
 270 }
 271
 272 static void
 273 _adg_part_data_to_ui_double(AdgPart *part, gdouble *data)
 274 {
 275     GtkWidget *widget = g_hash_table_lookup(part->widgets, data);
 276
 277     g_assert(GTK_IS_WIDGET(widget));
 278
 279     gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget), *data);
 280 }
 281
 282 static void
 283 _adg_part_data_to_ui(AdgPart *part)
 284 {
 285     _adg_part_data_to_ui_double(part, &part->A);
 286     _adg_part_data_to_ui_double(part, &part->B);
 287     _adg_part_data_to_ui_double(part, &part->C);
 288     _adg_part_data_to_ui_double(part, &part->DHOLE);
 289     _adg_part_data_to_ui_double(part, &part->LHOLE);
 290     _adg_part_data_to_ui_double(part, &part->D1);
 291     _adg_part_data_to_ui_double(part, &part->D2);
 292     _adg_part_data_to_ui_double(part, &part->LD2);
 293     _adg_part_data_to_ui_double(part, &part->D3);
 294     _adg_part_data_to_ui_double(part, &part->LD3);
 295     _adg_part_data_to_ui_double(part, &part->D4);
 296     //_adg_part_data_to_ui_double(part, &part->D5);
 297     _adg_part_data_to_ui_double(part, &part->D6);
 298     //_adg_part_data_to_ui_double(part, &part->LD6);
 299     _adg_part_data_to_ui_double(part, &part->D7);
 300     //_adg_part_data_to_ui_double(part, &part->LD7);
 301     _adg_part_lock(part);
 302 }
 303
 304 static void
 305 _adg_part_ui_to_data(AdgPart *part)
 306 {
 307     _adg_part_ui_to_data_double(part, &part->A);
 308     _adg_part_ui_to_data_double(part, &part->B);
 309     _adg_part_ui_to_data_double(part, &part->C);
 310     _adg_part_ui_to_data_double(part, &part->DHOLE);
 311     _adg_part_ui_to_data_double(part, &part->LHOLE);
 312     _adg_part_ui_to_data_double(part, &part->D1);
 313     _adg_part_ui_to_data_double(part, &part->D2);
 314     _adg_part_ui_to_data_double(part, &part->LD2);
 315     _adg_part_ui_to_data_double(part, &part->D3);
 316     _adg_part_ui_to_data_double(part, &part->LD3);
 317     _adg_part_ui_to_data_double(part, &part->D4);
 318     //_adg_part_ui_to_data_double(part, &part->D5);
 319     _adg_part_ui_to_data_double(part, &part->D6);
 320     //_adg_part_ui_to_data_double(part, &part->LD6);
 321     _adg_part_ui_to_data_double(part, &part->D7);
 322     //_adg_part_ui_to_data_double(part, &part->LD7);
 323
 324     _adg_part_lock(part);
 325
 326     adg_model_clear(ADG_MODEL(part->shape));
 327     _adg_define_shape(part->shape, part);
 328     adg_model_changed(ADG_MODEL(part->shape));
 329
 330     adg_model_clear(ADG_MODEL(part->hatch));
 331     _adg_define_hatch(part->hatch, part);
 332     adg_model_changed(ADG_MODEL(part->hatch));
 333
 334     adg_model_clear(ADG_MODEL(part->edges));
 335     adg_model_changed(ADG_MODEL(part->edges));
 336
 337     gtk_widget_queue_draw(GTK_WIDGET(part->area));
 338 }
 339
 340 static AdgPart *
 341 _adg_part_new(GtkBuilder *builder)
 342 {
 343     AdgPart *part;
 344
 345     part = g_new0(AdgPart, 1);
 346     part->widgets = g_hash_table_new_full(g_direct_hash, g_direct_equal,
 347                                           NULL, g_object_unref);
 348     part->area = (AdgGtkArea *) gtk_builder_get_object(builder, "mainCanvas");
 349     part->apply = (GtkButton *) gtk_builder_get_object(builder, "editApply");
 350     part->reset = (GtkButton *) gtk_builder_get_object(builder, "editReset");
 351     part->shape = adg_path_new();
 352     part->hatch = adg_path_new();
 353     part->edges = adg_edges_new_with_source(ADG_TRAIL(part->shape));
 354
 355     g_assert(ADG_GTK_IS_AREA(part->area));
 356     g_assert(GTK_IS_BUTTON(part->apply));
 357     g_assert(GTK_IS_BUTTON(part->reset));
 358
 359     _adg_part_link(part, &part->A, gtk_builder_get_object(builder, "editA"));
 360     _adg_part_link(part, &part->B, gtk_builder_get_object(builder, "editB"));
 361     _adg_part_link(part, &part->C, gtk_builder_get_object(builder, "editC"));
 362     _adg_part_link(part, &part->DHOLE, gtk_builder_get_object(builder, "editDHOLE"));
 363     _adg_part_link(part, &part->LHOLE, gtk_builder_get_object(builder, "editLHOLE"));
 364     _adg_part_link(part, &part->D1, gtk_builder_get_object(builder, "editD1"));
 365     _adg_part_link(part, &part->D2, gtk_builder_get_object(builder, "editD2"));
 366     _adg_part_link(part, &part->LD2, gtk_builder_get_object(builder, "editLD2"));
 367     _adg_part_link(part, &part->D3, gtk_builder_get_object(builder, "editD3"));
 368     _adg_part_link(part, &part->LD3, gtk_builder_get_object(builder, "editLD3"));
 369     _adg_part_link(part, &part->D4, gtk_builder_get_object(builder, "editD4"));
 370     //_adg_part_link(part, &part->D5, gtk_builder_get_object(builder, "editD5"));
 371     _adg_part_link(part, &part->D6, gtk_builder_get_object(builder, "editD6"));
 372     //_adg_part_link(part, &part->LD6, gtk_builder_get_object(builder, "editLD6"));
 373     _adg_part_link(part, &part->D7, gtk_builder_get_object(builder, "editD7"));
 374     //_adg_part_link(part, &part->LD7, gtk_builder_get_object(builder, "editLD7"));
 375
 376     part->D5 = 4.5;
 377     part->RD34 = 1;
 378     part->LD5 = 5;
 379     part->LD6 = 1;
 380     part->LD7 = 0.5;
 381
 382     _adg_part_ui_to_data(part);
 383
 384     return part;
 385 }
 386
 387 static void
 388 _adg_part_destroy(AdgPart *part)
 389 {
 390     g_hash_table_destroy(part->widgets);
 391     g_free(part);
 392 }
 393
 394 static void
 395 _adg_demo_canvas_add_sheet(AdgCanvas *canvas)
 396 {
 397     AdgTitleBlock *title_block = adg_title_block_new();
 398
 399     g_object_set(title_block,
 400                  "title", "SAMPLE DRAWING",
 401                  "author", "NtD",
 402                  "date", "",
 403                  "drawing", "TEST123",
 404                  "logo", adg_logo_new(),
 405                  "projection", adg_projection_new(ADG_PROJECTION_FIRST_ANGLE),
 406                  "scale", "NONE",
 407                  "size", "A4",
 408                  NULL);
 409
 410     adg_canvas_set_title_block(canvas, title_block);
 411 }
 412
 413 static void
 414 _adg_demo_canvas_add_dimensions(AdgCanvas *canvas, AdgModel *model)
 415 {
 416     AdgLDim *ldim;
 417     AdgADim *adim;
 418     AdgRDim *rdim;
 419
 420     /* NORTH */
 421     adim = adg_adim_new_full_from_model(model, "-D1I", "-D1F",
 422                                         "-D1F", "-D2I", "-D1F");
 423     adg_dim_set_level(ADG_DIM(adim), 2);
 424     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(adim));
 425
 426     ldim = adg_ldim_new_full_from_model(model, "-D1F", "-D3I_X", "-D3F_Y",
 427                                         ADG_DIR_UP);
 428     adg_dim_set_outside(ADG_DIM(ldim), ADG_THREE_STATE_OFF);
 429     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 430
 431     ldim = adg_ldim_new_full_from_model(model, "-D3I_X", "-D3F_X", "-D3F_Y",
 432                                         ADG_DIR_UP);
 433     adg_ldim_switch_extension1(ldim, FALSE);
 434     adg_dim_set_outside(ADG_DIM(ldim), ADG_THREE_STATE_OFF);
 435     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 436
 437     ldim = adg_ldim_new_full_from_model(model, "-D6I_X", "-D67", "-East",
 438                                         ADG_DIR_UP);
 439     adg_dim_set_level(ADG_DIM(ldim), 0);
 440     adg_ldim_switch_extension1(ldim, FALSE);
 441     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 442
 443     ldim = adg_ldim_new_full_from_model(model, "-D6I_X", "-D7F", "-East",
 444                                         ADG_DIR_UP);
 445     adg_dim_set_limits(ADG_DIM(ldim), "-0.06", NULL);
 446     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 447
 448     adim = adg_adim_new_full_from_model(model, "-D6I_Y", "-D6F",
 449                                         "-D6F", "-D67", "-D6F");
 450     adg_dim_set_level(ADG_DIM(adim), 2);
 451     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(adim));
 452
 453     rdim = adg_rdim_new_full_from_model(model, "-RD34", "-RD34_R", "-RD34_XY");
 454     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(rdim));
 455
 456
 457     /* SOUTH */
 458     ldim = adg_ldim_new_full_from_model(model, "D1I", "LHOLE", "D3F_Y",
 459                                         ADG_DIR_DOWN);
 460     adg_ldim_switch_extension1(ldim, FALSE);
 461     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 462
 463     ldim = adg_ldim_new_full_from_model(model, "D4F", "D6I_X", "D4_POS",
 464                                         ADG_DIR_DOWN);
 465     adg_dim_set_limits(ADG_DIM(ldim), NULL, "+0.2");
 466     adg_dim_set_outside(ADG_DIM(ldim), ADG_THREE_STATE_OFF);
 467     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 468
 469     ldim = adg_ldim_new_full_from_model(model, "D3I_X", "D7F", "D3F_Y",
 470                                         ADG_DIR_DOWN);
 471     adg_dim_set_limits(ADG_DIM(ldim), NULL, "+0.1");
 472     adg_dim_set_level(ADG_DIM(ldim), 2);
 473     adg_ldim_switch_extension2(ldim, FALSE);
 474     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 475
 476     ldim = adg_ldim_new_full_from_model(model, "D1I", "D7F", "D3F_Y",
 477                                         ADG_DIR_DOWN);
 478     adg_dim_set_limits(ADG_DIM(ldim), "-0.05", "+0.05");
 479     adg_dim_set_level(ADG_DIM(ldim), 3);
 480     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 481
 482     adim = adg_adim_new_full_from_model(model, "D4F", "D4I",
 483                                         "D5I", "D4F", "D4F");
 484     adg_dim_set_level(ADG_DIM(adim), 1.5);
 485     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(adim));
 486
 487     /* EAST */
 488     ldim = adg_ldim_new_full_from_model(model, "D6F", "-D6F", "East",
 489                                         ADG_DIR_RIGHT);
 490     adg_dim_set_limits(ADG_DIM(ldim), "-0.1", NULL);
 491     adg_dim_set_level(ADG_DIM(ldim), 4);
 492     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 493     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 494
 495     ldim = adg_ldim_new_full_from_model(model, "D4F", "-D4F", "East",
 496                                         ADG_DIR_RIGHT);
 497     adg_dim_set_level(ADG_DIM(ldim), 3);
 498     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 499     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 500
 501     ldim = adg_ldim_new_full_from_model(model, "D5F", "-D5F", "East",
 502                                         ADG_DIR_RIGHT);
 503     adg_dim_set_limits(ADG_DIM(ldim), "-0.1", NULL);
 504     adg_dim_set_level(ADG_DIM(ldim), 2);
 505     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 506     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 507
 508     ldim = adg_ldim_new_full_from_model(model, "D7F", "-D7F", "East",
 509                                         ADG_DIR_RIGHT);
 510     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 511     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 512
 513
 514     /* WEST */
 515     ldim = adg_ldim_new_full_from_model(model, "D3I_Y", "-D3I_Y", "-West",
 516                                         ADG_DIR_LEFT);
 517     adg_dim_set_limits(ADG_DIM(ldim), "-0.25", NULL);
 518     adg_dim_set_level(ADG_DIM(ldim), 4);
 519     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 520     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 521
 522     ldim = adg_ldim_new_full_from_model(model, "D1I", "-D1I", "-West",
 523                                         ADG_DIR_LEFT);
 524     adg_dim_set_limits(ADG_DIM(ldim), "+0.05", "-0.05");
 525     adg_dim_set_level(ADG_DIM(ldim), 3);
 526     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 527     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 528
 529     ldim = adg_ldim_new_full_from_model(model, "D2I", "-D2I", "-West",
 530                                         ADG_DIR_LEFT);
 531     adg_dim_set_limits(ADG_DIM(ldim), "-0.1", NULL);
 532     adg_dim_set_level(ADG_DIM(ldim), 2);
 533     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 534     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 535
 536     ldim = adg_ldim_new_full_from_model(model, "DHOLE", "-DHOLE", "-West",
 537                                         ADG_DIR_LEFT);
 538     adg_dim_set_value(ADG_DIM(ldim), ADG_UTF8_DIAMETER "<>");
 539     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 540 }
 541
 542 static void
 543 _adg_demo_canvas_add_stuff(AdgCanvas *canvas, AdgModel *model)
 544 {
 545     AdgToyText *toy_text;
 546     AdgMatrix map;
 547
 548     toy_text = adg_toy_text_new("Rotate the mouse wheel to zoom in and out");
 549     adg_entity_set_local_method(ADG_ENTITY(toy_text), ADG_MIX_DISABLED);
 550     cairo_matrix_init_translate(&map, -100, 200);
 551     adg_entity_set_global_map(ADG_ENTITY(toy_text), &map);
 552     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(toy_text));
 553
 554     toy_text = adg_toy_text_new("Drag with the wheel pressed to pan");
 555     adg_entity_set_local_method(ADG_ENTITY(toy_text), ADG_MIX_DISABLED);
 556     cairo_matrix_init_translate(&map, -100, 215);
 557     adg_entity_set_global_map(ADG_ENTITY(toy_text), &map);
 558     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(toy_text));
 559 }
 560
 561 static AdgCanvas *
 562 _adg_canvas_init(AdgCanvas *canvas, AdgPart *part)
 563 {
 564     AdgContainer *container;
 565     AdgEntity *entity;
 566     AdgMatrix map;
 567
 568     container = (AdgContainer *) canvas;
 569
 570     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(part->shape)));
 571     adg_container_add(container, entity);
 572
 573     entity = ADG_ENTITY(adg_hatch_new(ADG_TRAIL(part->hatch)));
 574     adg_container_add(container, entity);
 575
 576     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(part->edges)));
 577     adg_container_add(container, entity);
 578
 579     _adg_demo_canvas_add_sheet(canvas);
 580     _adg_demo_canvas_add_dimensions(canvas, ADG_MODEL(part->shape));
 581     _adg_demo_canvas_add_stuff(canvas, ADG_MODEL(part->shape));
 582
 583     cairo_matrix_init_scale(&map, 7, 7);
 584     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 585
 586     return canvas;
 587 }
 588
 589 static GtkRadioButton *
 590 _adg_group_get_active(GtkRadioButton *radio_group)
 591 {
 592     GSList *list = gtk_radio_button_get_group(radio_group);
 593
 594     while (list) {
 595         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(list->data)))
 596             return list->data;
 597
 598         list = list->next;
 599     }
 600
 601     return NULL;
 602 }
 603
 604 static void
 605 _adg_save_as_response(GtkWidget *window, GtkResponseType response,
 606                       AdgCanvas *canvas)
 607 {
 608     gchar *file, *suffix;
 609     GtkRadioButton *type_radio;
 610     cairo_surface_t *surface = NULL;
 611     void (*callback)(cairo_surface_t *, gchar *) = NULL;
 612
 613     if (response != GTK_RESPONSE_OK) {
 614         gtk_widget_hide(window);
 615         return;
 616     }
 617
 618     file = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(window));
 619     if (file == NULL)
 620         return;
 621
 622     type_radio = _adg_group_get_active(g_object_get_data(G_OBJECT(window),
 623                                                          "type-group"));
 624     g_assert(GTK_IS_RADIO_BUTTON(type_radio));
 625
 626     suffix = gtk_widget_get_tooltip_markup(GTK_WIDGET(type_radio));
 627     g_assert(suffix != NULL);
 628
 629     if (!g_str_has_suffix(file, suffix)) {
 630         gchar *tmp = file;
 631         file = g_strconcat(file, suffix, NULL);
 632         g_free(tmp);
 633     }
 634
 635     if (strcmp(suffix, ".png") == 0) {
 636 #ifdef CAIRO_HAS_PNG_FUNCTIONS
 637         surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, 800, 600);
 638         callback = (gpointer) cairo_surface_write_to_png;
 639 #endif
 640     } else if (strcmp(suffix, ".pdf") == 0) {
 641 #ifdef CAIRO_HAS_PDF_SURFACE
 642 #include <cairo-pdf.h>
 643         surface = cairo_pdf_surface_create(file, 841, 595);
 644 #endif
 645     } else if (strcmp(suffix, ".ps") == 0) {
 646 #ifdef CAIRO_HAS_PS_SURFACE
 647 #include <cairo-ps.h>
 648         surface = cairo_ps_surface_create(file, 841, 595);
 649         cairo_ps_surface_dsc_comment(surface, "%%Title: " PACKAGE_STRING);
 650         cairo_ps_surface_dsc_comment(surface, "%%Copyright: Copyleft (C) 2006-2010 Fontana Nicola");
 651         cairo_ps_surface_dsc_comment(surface, "%%Orientation: Landscape");
 652         cairo_ps_surface_dsc_begin_setup(surface);
 653         cairo_ps_surface_dsc_begin_page_setup(surface);
 654         cairo_ps_surface_dsc_comment(surface, "%%IncludeFeature: *PageSize A4");
 655 #endif
 656     }
 657
 658     if (surface) {
 659         cairo_t *cr = cairo_create(surface);
 660         cairo_surface_destroy(surface);
 661         adg_entity_render(ADG_ENTITY(canvas), cr);
 662         cairo_show_page(cr);
 663         if (callback)
 664             callback(surface, file);
 665         cairo_destroy(cr);
 666     }
 667
 668     g_free(file);
 669     g_free(suffix);
 670     gtk_widget_hide(window);
 671 }
 672
 673 static GtkWidget *
 674 _adg_about_window(GtkBuilder *builder)
 675 {
 676     GtkWidget *window;
 677
 678     window = (GtkWidget *) gtk_builder_get_object(builder, "wndAbout");
 679     g_assert(GTK_IS_ABOUT_DIALOG(window));
 680
 681     g_signal_connect(window, "response", G_CALLBACK(gtk_widget_hide), NULL);
 682
 683     return window;
 684 }
 685
 686 /**
 687  * _adg_window_hide:
 688  * @window: a #GtkWindow
 689  *
 690  * A convenient function that hides @window storing the current position
 691  * so any subsequent call to gtk_widget_show() will hopefully reopen
 692  * the window at the same position.
 693  *
 694  * It is useful to connect this callback to a #GtkDialog::response signal.
 695  **/
 696 static void
 697 _adg_window_hide(GtkWindow *window)
 698 {
 699     gint x, y;
 700
 701     g_return_if_fail(GTK_IS_WINDOW(window));
 702
 703     gtk_window_get_position(window, &x, &y);
 704     gtk_widget_hide((GtkWidget *) window);
 705     gtk_window_set_position(window, GTK_WIN_POS_NONE);
 706     gtk_window_move(window, x, y);
 707 }
 708
 709 static GtkWidget *
 710 _adg_edit_window(GtkBuilder *builder, AdgPart *part)
 711 {
 712     GtkWidget *window;
 713
 714     window = (GtkWidget *) gtk_builder_get_object(builder, "wndEdit");
 715     g_assert(GTK_IS_DIALOG(window));
 716
 717     gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_MOUSE);
 718
 719     g_signal_connect_swapped(part->apply, "clicked",
 720                              G_CALLBACK(_adg_part_ui_to_data), part);
 721     g_signal_connect_swapped(part->reset, "clicked",
 722                              G_CALLBACK(_adg_part_data_to_ui), part);
 723     g_signal_connect(window, "response", G_CALLBACK(_adg_window_hide), NULL);
 724
 725     return window;
 726 }
 727
 728 static GtkWidget *
 729 _adg_save_as_window(GtkBuilder *builder, AdgCanvas *canvas)
 730 {
 731     GtkWidget *window;
 732     GtkWidget *type_group, *button_save;
 733
 734     window = (GtkWidget *) gtk_builder_get_object(builder, "wndSaveAs");
 735     g_assert(GTK_IS_WINDOW(window));
 736     type_group = (GtkWidget *) gtk_builder_get_object(builder, "saveAsPng");
 737     g_assert(GTK_IS_RADIO_BUTTON(type_group));
 738     button_save = (GtkWidget *) gtk_builder_get_object(builder, "saveAsSave");
 739     g_assert(GTK_IS_BUTTON(button_save));
 740
 741     g_object_set_data(G_OBJECT(window), "type-group", type_group);
 742
 743     g_signal_connect(window, "response",
 744                      G_CALLBACK(_adg_save_as_response), canvas);
 745
 746     return window;
 747 }
 748
 749 static GtkWidget *
 750 _adg_main_window(GtkBuilder *builder)
 751 {
 752     GtkWidget *window;
 753     AdgPart *part;
 754     AdgCanvas *canvas;
 755     GtkWidget *button_edit, *button_save_as, *button_about, *button_quit;
 756
 757     window = (GtkWidget *) gtk_builder_get_object(builder, "wndMain");
 758     part = _adg_part_new(builder);
 759     canvas = adg_canvas_new();
 760
 761     _adg_canvas_init(canvas, part);
 762     adg_gtk_area_set_canvas(part->area, canvas);
 763
 764     g_assert(GTK_IS_WINDOW(window));
 765     button_edit = (GtkWidget *) gtk_builder_get_object(builder, "mainEdit");
 766     g_assert(GTK_IS_BUTTON(button_edit));
 767     button_save_as = (GtkWidget *) gtk_builder_get_object(builder, "mainSaveAs");
 768     g_assert(GTK_IS_BUTTON(button_save_as));
 769     button_about = (GtkWidget *) gtk_builder_get_object(builder, "mainAbout");
 770     g_assert(GTK_IS_BUTTON(button_about));
 771     button_quit = (GtkWidget *) gtk_builder_get_object(builder, "mainQuit");
 772     g_assert(GTK_IS_BUTTON(button_quit));
 773
 774     g_signal_connect_swapped(button_edit, "clicked",
 775                              G_CALLBACK(gtk_dialog_run),
 776                              _adg_edit_window(builder, part));
 777     g_signal_connect_swapped(button_save_as, "clicked",
 778                              G_CALLBACK(gtk_dialog_run),
 779                              _adg_save_as_window(builder, canvas));
 780     g_signal_connect_swapped(button_about, "clicked",
 781                              G_CALLBACK(gtk_dialog_run),
 782                              _adg_about_window(builder));
 783     g_signal_connect(button_quit, "clicked", G_CALLBACK(gtk_main_quit), NULL);
 784     g_signal_connect(window, "delete-event", G_CALLBACK(gtk_main_quit), NULL);
 785     g_signal_connect_swapped(window, "destroy",
 786                              G_CALLBACK(_adg_part_destroy), part);
 787
 788     return window;
 789 }
 790
 791
 792 int
 793 main(gint argc, gchar **argv)
 794 {
 795     gboolean show_extents;
 796     gchar *path;
 797     GtkBuilder *builder;
 798     GError *error;
 799     GtkWidget *main_window;
 800
 801     _adg_parse_args(&argc, &argv, &show_extents);
 802     adg_switch_extents(show_extents);
 803
 804     path = demo_find_data_file("adg-demo.ui", argv[0]);
 805     if (path == NULL) {
 806         g_print("adg-demo.ui not found!\n");
 807         return 1;
 808     }
 809
 810     builder = gtk_builder_new();
 811     error = NULL;
 812     gtk_builder_add_from_file(builder, path, &error);
 813
 814     if (error != NULL) {
 815         g_critical("%s", error->message);
 816         g_error_free(error);
 817         return 2;
 818     }
 819
 820     main_window = _adg_main_window(builder);
 821     g_object_unref(builder);
 822
 823     gtk_widget_show_all(main_window);
 824     gtk_main();
 825
 826     return 0;
 827 }