demo/adg-demo.c

   1 #include <adg/adg.h>
   2 #include <math.h>
   3
   4 #include "demo.h"
   5
   6
   7 static AdgCanvas *      sample_canvas           (void);
   8 static AdgCanvas *      operations_canvas       (void);
   9 static AdgCanvas *      mapping_canvas          (void);
  10 static void             to_pdf                  (AdgWidget      *widget,
  11                                                  GtkWidget      *caller);
  12 static void             to_png                  (AdgWidget      *widget,
  13                                                  GtkWidget      *caller);
  14 static void             to_ps                   (AdgWidget      *widget,
  15                                                  GtkWidget      *caller);
  16
  17
  18 int
  19 main(gint argc, gchar **argv)
  20 {
  21     gchar *path;
  22     GtkBuilder *builder;
  23     GError *error;
  24     GtkWidget *window;
  25     GtkWidget *sample;
  26     GtkWidget *operations;
  27     GtkWidget *mapping;
  28
  29     gtk_init(&argc, &argv);
  30
  31     path = demo_find_data_file("adg-demo.ui");
  32     if (path == NULL) {
  33         g_print("adg-demo.ui not found!\n");
  34         return 1;
  35     }
  36
  37     builder = gtk_builder_new();
  38     error = NULL;
  39
  40     gtk_builder_add_from_file(builder, path, &error);
  41     if (error != NULL) {
  42         g_print("%s\n", error->message);
  43         return 2;
  44     }
  45
  46     window = (GtkWidget *) gtk_builder_get_object(builder, "wndMain");
  47
  48     sample = (GtkWidget *) gtk_builder_get_object(builder, "areaSample");
  49     adg_widget_set_canvas(ADG_WIDGET(sample), sample_canvas());
  50
  51     operations = (GtkWidget *) gtk_builder_get_object(builder, "areaOperations");
  52     adg_widget_set_canvas(ADG_WIDGET(operations), operations_canvas());
  53
  54     mapping = (GtkWidget *) gtk_builder_get_object(builder, "areaMapping");
  55     adg_widget_set_canvas(ADG_WIDGET(mapping), mapping_canvas());
  56
  57     /* Connect signals */
  58     g_signal_connect(window, "delete-event",
  59                      G_CALLBACK(gtk_main_quit), NULL);
  60     g_signal_connect(gtk_builder_get_object(builder, "btnQuit"),
  61                      "clicked", G_CALLBACK(gtk_main_quit), NULL);
  62     g_signal_connect_swapped(gtk_builder_get_object(builder, "btnPng"),
  63                              "clicked", G_CALLBACK(to_png), sample);
  64     g_signal_connect_swapped(gtk_builder_get_object(builder, "btnPdf"),
  65                              "clicked", G_CALLBACK(to_pdf), sample);
  66     g_signal_connect_swapped(gtk_builder_get_object(builder, "btnPs"),
  67                              "clicked", G_CALLBACK(to_ps), sample);
  68
  69     g_object_unref(builder);
  70
  71     gtk_widget_show_all(window);
  72     gtk_main();
  73
  74     return 0;
  75 }
  76
  77
  78 static AdgPath *        non_trivial_model       (void);
  79
  80
  81 /**********************************************
  82  * A sample mechanical part example
  83  **********************************************/
  84
  85 #define SQRT3   1.732050808
  86 #define CHAMFER 0.3
  87
  88 typedef struct _SampleData SampleData;
  89
  90 struct _SampleData {
  91     gdouble A, B, C;
  92     gdouble D1, D2, D3, D4, D5, D6, D7;
  93     gdouble RD34, RD56;
  94     gdouble LD2, LD3, LD5, LD6, LD7;
  95 };
  96
  97 static void     sample_get              (SampleData             *data);
  98 static AdgPath *sample_path             (const SampleData       *data);
  99 static void     sample_add_dimensions   (AdgCanvas              *canvas,
 100                                          AdgModel               *model,
 101                                          const SampleData       *data);
 102 static void     sample_add_stuff        (AdgCanvas              *canvas,
 103                                          const SampleData       *data);
 104 static void     reverse_pair            (const gchar            *name,
 105                                          AdgPair                *pair,
 106                                          AdgModel               *model);
 107
 108
 109 static AdgCanvas *
 110 sample_canvas(void)
 111 {
 112     SampleData data;
 113     AdgCanvas *canvas;
 114     AdgContainer *container;
 115     AdgTrail *shape, *edges;
 116     AdgEntity *entity;
 117     AdgMatrix map;
 118
 119     sample_get(&data);
 120     canvas = adg_canvas_new();
 121     container = (AdgContainer *) canvas;
 122     shape = ADG_TRAIL(sample_path(&data));
 123     edges = ADG_TRAIL(adg_edges_new_with_source(shape));
 124
 125     entity = ADG_ENTITY(adg_stroke_new(shape));
 126     adg_container_add(container, entity);
 127
 128     entity = ADG_ENTITY(adg_hatch_new(shape));
 129     adg_container_add(container, entity);
 130
 131     entity = ADG_ENTITY(adg_stroke_new(edges));
 132     adg_container_add(container, entity);
 133
 134     sample_add_dimensions(canvas, ADG_MODEL(shape), &data);
 135     sample_add_stuff(canvas, &data);
 136
 137     cairo_matrix_init_translate(&map, 100, 70);
 138     cairo_matrix_scale(&map, 6.883, 6.883);
 139     cairo_matrix_translate(&map, 0, 10);
 140     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 141
 142     return canvas;
 143 }
 144
 145 static void
 146 sample_get(SampleData *data)
 147 {
 148     data->A = 52.3;
 149     data->B = 20.6;
 150     data->C = 2;
 151     data->D1 = 9.3;
 152     data->D2 = 6.5;
 153     data->D3 = 11.9;
 154     data->D4 = 6.5;
 155     data->D5 = 4.5;
 156     data->D6 = 7.2;
 157     data->D7 = 3;
 158     data->RD34 = 1;
 159     data->LD2 = 7;
 160     data->LD3 = 3.5;
 161     data->LD5 = 5;
 162     data->LD6 = 1;
 163     data->LD7 = 0.5;
 164 }
 165
 166 static AdgPath *
 167 sample_path(const SampleData *data)
 168 {
 169     AdgPath *path;
 170     AdgModel *model;
 171     AdgPair pair;
 172     AdgSegment segment;
 173     AdgSegment *dup_segment;
 174     const AdgPrimitive *primitive;
 175     cairo_matrix_t matrix;
 176
 177     path = adg_path_new();
 178     model = ADG_MODEL(path);
 179
 180     pair.x = 0;
 181     pair.y = data->D1 / 2;
 182     adg_path_move_to(path, pair.x, pair.y);
 183     adg_model_set_named_pair(model, "D1I", &pair);
 184
 185     pair.x = data->A - data->B - data->LD2;
 186     adg_path_line_to(path, pair.x, pair.y);
 187     adg_model_set_named_pair(model, "D1F", &pair);
 188
 189     pair.x += (data->D1 - data->D2) * SQRT3 / 2;
 190     pair.y -= (data->D1 - data->D2) / 2;
 191     adg_path_line_to(path, pair.x, pair.y);
 192     adg_model_set_named_pair(model, "D2I", &pair);
 193
 194     adg_path_line_to(path, data->A - data->B, data->D2 / 2);
 195     adg_path_fillet(path, 0.4);
 196
 197     pair.x = data->A - data->B;
 198     pair.y = data->D3 / 2;
 199     adg_path_line_to(path, pair.x, pair.y);
 200     adg_model_set_named_pair(model, "D3I", &pair);
 201
 202     adg_path_chamfer(path, CHAMFER, CHAMFER);
 203
 204     pair.x = data->A - data->B + data->LD3;
 205     pair.y = data->D3 / 2;
 206     adg_path_line_to(path, pair.x, pair.y);
 207
 208     primitive = adg_path_over_primitive(path);
 209     cpml_pair_from_cairo(&pair, cpml_primitive_get_point(primitive, 0));
 210     adg_model_set_named_pair(model, "D3I_X", &pair);
 211
 212     adg_path_chamfer(path, CHAMFER, CHAMFER);
 213     adg_path_line_to(path, data->A - data->B + data->LD3, data->D4 / 2);
 214
 215     primitive = adg_path_over_primitive(path);
 216     cpml_pair_from_cairo(&pair, cpml_primitive_get_point(primitive, 0));
 217     adg_model_set_named_pair(model, "D3F_Y", &pair);
 218     cpml_pair_from_cairo(&pair, cpml_primitive_get_point(primitive, -1));
 219     adg_model_set_named_pair(model, "D3F_X", &pair);
 220
 221     adg_path_fillet(path, data->RD34);
 222
 223     pair.x = data->A - data->C - data->LD5;
 224     pair.y = data->D4 / 2;
 225     adg_path_line_to(path, pair.x, pair.y);
 226     adg_model_set_named_pair(model, "D4F", &pair);
 227
 228     pair.y = (data->D4 - data->D5) / 2;
 229     adg_path_line_to(path, data->A - data->C - data->LD5 + pair.y, data->D4 / 2 - pair.y);
 230     adg_path_line_to(path, data->A - data->C, data->D5 / 2);
 231
 232     adg_path_fillet(path, 0.2);
 233
 234     adg_path_line_to(path, data->A - data->C, data->D6 / 2);
 235
 236     primitive = adg_path_over_primitive(path);
 237     cpml_pair_from_cairo(&pair, cpml_primitive_get_point(primitive, 0));
 238     adg_model_set_named_pair(model, "D5F", &pair);
 239
 240     adg_path_fillet(path, 0.1);
 241
 242     pair.x = data->A - data->C + data->LD6;
 243     pair.y = data->D6 / 2;
 244     adg_path_line_to(path, pair.x, pair.y);
 245     adg_model_set_named_pair(model, "D6F", &pair);
 246
 247     primitive = adg_path_over_primitive(path);
 248     cpml_pair_from_cairo(&pair, cpml_primitive_get_point(primitive, -1));
 249     adg_model_set_named_pair(model, "D6I_Y", &pair);
 250
 251     pair.x = data->A - data->LD7;
 252     pair.y = data->D6 / 2 - (data->C - data->LD7 - data->LD6) / SQRT3;
 253     adg_path_line_to(path, pair.x, pair.y);
 254     adg_model_set_named_pair(model, "D67", &pair);
 255
 256     adg_path_line_to(path, data->A - data->LD7, data->D7 / 2);
 257
 258     pair.x = data->A;
 259     pair.y = data->D7 / 2;
 260     adg_path_line_to(path, pair.x, pair.y);
 261     adg_model_set_named_pair(model, "D7F", &pair);
 262
 263     /* Reflect the shape by duplicating the first segment of
 264      * the current path, applying a -1 y scale (that is
 265      * mirroring it on the y=0 axis), reversing the resulting
 266      * path and appending it to the original one */
 267     adg_trail_get_segment(ADG_TRAIL(path), &segment, 1);
 268     dup_segment = adg_segment_deep_dup(&segment);
 269     cpml_segment_reverse(dup_segment);
 270     cairo_matrix_init(&matrix, 1, 0, 0, -1, 0, 0);
 271     cpml_segment_transform(dup_segment, &matrix);
 272     dup_segment->data[0].header.type = CAIRO_PATH_LINE_TO;
 273
 274     adg_path_append_segment(path, dup_segment);
 275
 276     g_free(dup_segment);
 277
 278     adg_model_foreach_named_pair(model, (AdgNamedPairCallback) reverse_pair,
 279                                  model);
 280
 281     adg_path_close(path);
 282     return path;
 283 }
 284
 285 static void
 286 sample_add_dimensions(AdgCanvas *canvas, AdgModel *model,
 287                       const SampleData *data)
 288 {
 289     AdgLDim *ldim;
 290     AdgADim *adim;
 291     AdgRDim *rdim;
 292     double x, y;
 293
 294     /* NORTH */
 295
 296     ldim = adg_ldim_new_full_from_model(model, "-D1F", "-D3I_X", "-D3F_Y",
 297                                         ADG_DIR_UP);
 298     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 299
 300     ldim = adg_ldim_new_full_from_model(model, "-D3I_X", "-D3F_X", "-D3F_Y",
 301                                         ADG_DIR_UP);
 302     adg_ldim_switch_extension1(ldim, FALSE);
 303     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 304
 305     /* SOUTH */
 306
 307     ldim = adg_ldim_new_full_from_model(model, "D3I_X", "D7F", "D3F_Y",
 308                                         ADG_DIR_DOWN);
 309     adg_dim_set_limits(ADG_DIM(ldim), NULL, "+0.1");
 310     adg_ldim_switch_extension2(ldim, FALSE);
 311     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 312
 313     ldim = adg_ldim_new_full_from_model(model, "D1I", "D7F", "D3F_Y",
 314                                         ADG_DIR_DOWN);
 315     adg_dim_set_limits(ADG_DIM(ldim), "-0.05", "+0.05");
 316     adg_dim_set_level(ADG_DIM(ldim), 2);
 317     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 318
 319     /* Angular D6+ */
 320     adim = adg_adim_new_full_from_model(model, "D6F", "D6I_Y", "D67",
 321                                         "D6F", "D6F");
 322     adg_dim_set_level(ADG_DIM(adim), 2);
 323     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(adim));
 324
 325     /* Radial RD34 */
 326     x = data->A - data->B + data->LD3 + data->RD34;
 327     y = data->D4 / 2 + data->RD34;
 328     rdim = adg_rdim_new_full_explicit(x, y,
 329                                       x - cos(G_PI_4) * data->RD34,
 330                                       y - sin(G_PI_4) * data->RD34,
 331                                       x + cos(G_PI_4) * data->RD34,
 332                                       y + sin(G_PI_4) * data->RD34);
 333     adg_dim_set_level(ADG_DIM(rdim), 1);
 334     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(rdim));
 335
 336     /* EAST */
 337
 338     ldim = adg_ldim_new_full_from_model(model, "D3F_Y", "-D3F_Y", "D7F",
 339                                         ADG_DIR_RIGHT);
 340     adg_dim_set_limits(ADG_DIM(ldim), "-0.25", NULL);
 341     adg_dim_set_level(ADG_DIM(ldim), 5);
 342     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 343
 344     ldim = adg_ldim_new_full_from_model(model, "D6F", "-D6F", "D7F",
 345                                         ADG_DIR_RIGHT);
 346     adg_dim_set_limits(ADG_DIM(ldim), "-0.1", NULL);
 347     adg_dim_set_level(ADG_DIM(ldim), 4);
 348     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 349
 350     ldim = adg_ldim_new_full_from_model(model, "D4F", "-D4F", "D7F",
 351                                         ADG_DIR_RIGHT);
 352     adg_dim_set_level(ADG_DIM(ldim), 3);
 353     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 354
 355     ldim = adg_ldim_new_full_from_model(model, "D5F", "-D5F", "D7F",
 356                                         ADG_DIR_RIGHT);
 357     adg_dim_set_limits(ADG_DIM(ldim), "-0.1", NULL);
 358     adg_dim_set_level(ADG_DIM(ldim), 2);
 359     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 360
 361     ldim = adg_ldim_new_full_from_model(model, "D7F", "-D7F", "D7F",
 362                                         ADG_DIR_RIGHT);
 363     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 364
 365     /* WEST */
 366
 367     ldim = adg_ldim_new_full_from_model(model, "D1I", "-D1I", "D1I",
 368                                         ADG_DIR_LEFT);
 369     adg_dim_set_limits(ADG_DIM(ldim), "+0.05", "-0.05");
 370     adg_dim_set_level(ADG_DIM(ldim), 2);
 371     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 372
 373     ldim = adg_ldim_new_full_from_model(model, "D2I", "-D2I", "D1I",
 374                                         ADG_DIR_LEFT);
 375     adg_dim_set_limits(ADG_DIM(ldim), "-0.1", NULL);
 376     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(ldim));
 377 }
 378
 379 static void
 380 sample_add_stuff(AdgCanvas *canvas, const SampleData *data)
 381 {
 382     AdgToyText *toy_text;
 383     AdgMatrix map;
 384
 385     toy_text = adg_toy_text_new("Rotate the mouse wheel to zoom in and out");
 386     cairo_matrix_init_translate(&map, 0, data->D3 / 2);
 387     adg_entity_set_local_map(ADG_ENTITY(toy_text), &map);
 388     cairo_matrix_translate(&map, 10, 30 + 30 * 2);
 389     adg_entity_set_global_map(ADG_ENTITY(toy_text), &map);
 390     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(toy_text));
 391
 392     toy_text = adg_toy_text_new("Keep the wheel pressed while dragging the mouse to translate");
 393     cairo_matrix_init_translate(&map, 0, data->D3 / 2);
 394     adg_entity_set_local_map(ADG_ENTITY(toy_text), &map);
 395     cairo_matrix_init_translate(&map, 10, 50 + 30 * 2);
 396     adg_entity_set_global_map(ADG_ENTITY(toy_text), &map);
 397     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(toy_text));
 398 }
 399
 400
 401 #if defined(CAIRO_HAS_PNG_FUNCTIONS) || defined(CAIRO_HAS_PDF_SURFACE) || defined(CAIRO_HAS_PS_SURFACE)
 402
 403 /* Only needed if there is at least one supported surface */
 404 static void
 405 file_generated(GtkWidget *caller, const gchar *file)
 406 {
 407     GtkWindow *window;
 408     GtkWidget *dialog;
 409
 410     window = (GtkWindow *) gtk_widget_get_toplevel(caller);
 411     dialog = gtk_message_dialog_new_with_markup(window, GTK_DIALOG_MODAL,
 412                                                 GTK_MESSAGE_INFO,
 413                                                 GTK_BUTTONS_CLOSE,
 414                                                 "The requested operation generated\n"
 415                                                 "<b>%s</b> in the current directory.",
 416                                                 file);
 417     gtk_window_set_title(GTK_WINDOW(dialog), "Operation completed");
 418     gtk_dialog_run(GTK_DIALOG(dialog));
 419     gtk_widget_destroy(dialog);
 420 }
 421
 422 #endif
 423
 424 #if !defined(CAIRO_HAS_PNG_FUNCTIONS) || !defined(CAIRO_HAS_PDF_SURFACE) || !defined(CAIRO_HAS_PS_SURFACE)
 425
 426 /* Only needed if there is a missing surface */
 427 static void
 428 missing_feature(GtkWidget *caller, const gchar *feature)
 429 {
 430     GtkWindow *window;
 431     GtkWidget *dialog;
 432
 433     window = (GtkWindow *) gtk_widget_get_toplevel(caller);
 434     dialog = gtk_message_dialog_new(window, GTK_DIALOG_MODAL,
 435                                     GTK_MESSAGE_WARNING,
 436                                     GTK_BUTTONS_OK,
 437                                     "The provided cairo library\n"
 438                                     "was compiled with no %s support!",
 439                                     feature);
 440     gtk_window_set_title(GTK_WINDOW(dialog), "Missing feature");
 441     gtk_dialog_run(GTK_DIALOG(dialog));
 442     gtk_widget_destroy(dialog);
 443 }
 444
 445 #endif
 446
 447
 448 #ifdef CAIRO_HAS_PNG_FUNCTIONS
 449
 450 static void
 451 to_png(AdgWidget *widget, GtkWidget *caller)
 452 {
 453     cairo_surface_t *surface;
 454     cairo_t *cr;
 455
 456     surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 800, 600);
 457     cr = cairo_create(surface);
 458     cairo_surface_destroy(surface);
 459
 460     /* Rendering process */
 461     adg_entity_render(ADG_ENTITY(adg_widget_get_canvas(widget)), cr);
 462
 463     cairo_show_page(cr);
 464     cairo_surface_write_to_png(surface, "test.png");
 465     cairo_destroy(cr);
 466
 467     file_generated(caller, "test.png");
 468 }
 469
 470 #else
 471
 472 static void
 473 to_png(AdgWidget *widget, GtkWidget *caller)
 474 {
 475     missing_feature(caller, "PNG");
 476 }
 477
 478 #endif
 479
 480 #ifdef CAIRO_HAS_PDF_SURFACE
 481
 482 #include <cairo-pdf.h>
 483
 484 static void
 485 to_pdf(AdgWidget *widget, GtkWidget *caller)
 486 {
 487     cairo_surface_t *surface;
 488     cairo_t *cr;
 489
 490     surface = cairo_pdf_surface_create("test.pdf", 841, 595);
 491     cr = cairo_create(surface);
 492     cairo_surface_destroy(surface);
 493
 494     adg_entity_render(ADG_ENTITY(adg_widget_get_canvas(widget)), cr);
 495
 496     cairo_show_page(cr);
 497     cairo_destroy(cr);
 498
 499     file_generated(caller, "test.pdf");
 500 }
 501
 502 #else
 503
 504 static void
 505 to_pdf(AdgWidget *widget, GtkWidget *caller)
 506 {
 507     missing_feature(caller, "PDF");
 508 }
 509
 510 #endif
 511
 512 #ifdef CAIRO_HAS_PS_SURFACE
 513
 514 #include <cairo-ps.h>
 515
 516 static void
 517 to_ps(AdgWidget *widget, GtkWidget *caller)
 518 {
 519     cairo_surface_t *surface;
 520     cairo_t *cr;
 521
 522     /* Surface creation: A4 size */
 523     surface = cairo_ps_surface_create("test.ps", 841, 595);
 524     cairo_ps_surface_dsc_comment(surface,
 525                                  "%%Title: Automatic Drawing Generation (ADG) demo");
 526     cairo_ps_surface_dsc_comment(surface,
 527                                  "%%Copyright: Copyright (C) 2006-2009 Fontana Nicola");
 528     cairo_ps_surface_dsc_comment(surface, "%%Orientation: Portrait");
 529
 530     cairo_ps_surface_dsc_begin_setup(surface);
 531
 532     cairo_ps_surface_dsc_begin_page_setup(surface);
 533     cairo_ps_surface_dsc_comment(surface,
 534                                  "%%IncludeFeature: *PageSize A4");
 535
 536     cr = cairo_create(surface);
 537     cairo_surface_destroy(surface);
 538
 539     adg_entity_render(ADG_ENTITY(adg_widget_get_canvas(widget)), cr);
 540
 541     cairo_show_page(cr);
 542     cairo_destroy(cr);
 543
 544     file_generated(caller, "test.ps");
 545 }
 546
 547 #else
 548
 549 static void
 550 to_ps(AdgWidget *widget, GtkWidget *caller)
 551 {
 552     missing_feature(caller, "PostScript");
 553 }
 554
 555 #endif
 556
 557
 558 /**********************************************
 559  * Test case for basic operations,
 560  * such as chamfer and fillet
 561  **********************************************/
 562
 563 static AdgPath *        operations_chamfer      (const AdgPath  *path,
 564                                                  gdouble         delta1,
 565                                                  gdouble         delta2);
 566 static AdgPath *        operations_fillet       (const AdgPath  *path,
 567                                                  gdouble         radius);
 568
 569 static AdgCanvas *
 570 operations_canvas(void)
 571 {
 572     AdgPath *path, *chamfer_path, *fillet_path;
 573     AdgCanvas *canvas;
 574     AdgContainer *container;
 575     AdgEntity *entity;
 576     AdgMatrix map;
 577
 578     path = non_trivial_model();
 579     chamfer_path = operations_chamfer(path, 0.25, 0.25);
 580     fillet_path = operations_fillet(path, 0.20);
 581     canvas = adg_canvas_new();
 582
 583     /* Add the original shape */
 584     container = adg_container_new();
 585     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 586
 587     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(path)));
 588     adg_container_add(container, entity);
 589
 590     entity = ADG_ENTITY(adg_toy_text_new("Original shape"));
 591     cairo_matrix_init_translate(&map, 5, 10);
 592     adg_entity_set_local_map(entity, &map);
 593     cairo_matrix_init_translate(&map, -50, 20);
 594     adg_entity_set_global_map(entity, &map);
 595     adg_container_add(ADG_CONTAINER(canvas), entity);
 596
 597     /* Add the shape with 0.25x0.25 chamfer */
 598     container = adg_container_new();
 599     cairo_matrix_init_translate(&map, 15, 0);
 600     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 601     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 602
 603     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(chamfer_path)));
 604     adg_container_add(container, entity);
 605
 606     entity = ADG_ENTITY(adg_toy_text_new("Shape with 0.25x0.25 chamfer"));
 607     cairo_matrix_init_translate(&map, 5, 10);
 608     adg_entity_set_local_map(entity, &map);
 609     cairo_matrix_init_translate(&map, -120, 20);
 610     adg_entity_set_global_map(entity, &map);
 611     adg_container_add(container, entity);
 612
 613     /* Add the shape with fillets with 0.20 of radius */
 614     container = adg_container_new();
 615     cairo_matrix_init_translate(&map, 30, 0);
 616     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 617     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 618
 619     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(fillet_path)));
 620     adg_container_add(container, entity);
 621
 622     entity = ADG_ENTITY(adg_toy_text_new("Shape with R=20 fillet"));
 623     cairo_matrix_init_translate(&map, 5, 10);
 624     adg_entity_set_local_map(entity, &map);
 625     cairo_matrix_init_translate(&map, -90, 20);
 626     adg_entity_set_global_map(entity, &map);
 627     adg_container_add(container, entity);
 628
 629     /* Set a decent start position and zoom */
 630     cairo_matrix_init_translate(&map, 10, -140);
 631     cairo_matrix_scale(&map, 15, 15);
 632     cairo_matrix_translate(&map, 0, 10);
 633     adg_entity_set_local_map(ADG_ENTITY(canvas), &map);
 634
 635     return canvas;
 636 }
 637
 638 static AdgPath *
 639 operations_chamfer(const AdgPath *model, gdouble delta1, gdouble delta2)
 640 {
 641     AdgPath *path;
 642     CpmlSegment segment;
 643     CpmlPrimitive primitive;
 644
 645     path = adg_path_new();
 646     adg_trail_get_segment(ADG_TRAIL(model), &segment, 1);
 647     cpml_primitive_from_segment(&primitive, &segment);
 648
 649     adg_path_move_to(path, (primitive.org)->point.x, (primitive.org)->point.y);
 650
 651     do {
 652         adg_path_append_primitive(path, &primitive);
 653         if (primitive.data[0].header.type == CAIRO_PATH_LINE_TO)
 654             adg_path_chamfer(path, delta1, delta2);
 655     } while (cpml_primitive_next(&primitive));
 656
 657     return path;
 658 }
 659
 660 static AdgPath *
 661 operations_fillet(const AdgPath *model, gdouble radius)
 662 {
 663     AdgPath *path;
 664     CpmlSegment segment;
 665     CpmlPrimitive primitive;
 666
 667     path = adg_path_new();
 668     adg_trail_get_segment(ADG_TRAIL(model), &segment, 1);
 669     cpml_primitive_from_segment(&primitive, &segment);
 670
 671     adg_path_move_to(path, (primitive.org)->point.x, (primitive.org)->point.y);
 672
 673     do {
 674         adg_path_append_primitive(path, &primitive);
 675         if (primitive.data[0].header.type == CAIRO_PATH_LINE_TO)
 676             adg_path_fillet(path, radius);
 677     } while (cpml_primitive_next(&primitive));
 678
 679     return path;
 680 }
 681
 682
 683 /**********************************************
 684  * Test case for mapping transformations,
 685  * either on the local and global map
 686  **********************************************/
 687
 688 static AdgCanvas *
 689 mapping_canvas(void)
 690 {
 691     AdgPath *path;
 692     AdgCanvas *canvas;
 693     AdgContainer *container;
 694     AdgEntity *entity;
 695     AdgMatrix map;
 696
 697     path = non_trivial_model();
 698     canvas = adg_canvas_new();
 699
 700     /* Add the original shape */
 701     container = adg_container_new();
 702     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 703
 704     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(path)));
 705     adg_container_add(container, entity);
 706
 707     entity = ADG_ENTITY(adg_toy_text_new("Original shape"));
 708     cairo_matrix_init_translate(&map, -50, 20);
 709     adg_entity_set_global_map(entity, &map);
 710     cairo_matrix_init_translate(&map, 5, 10);
 711     adg_entity_set_local_map(entity, &map);
 712     adg_container_add(ADG_CONTAINER(canvas), entity);
 713
 714     /* Original shape with global rotated by 90 and local translated x+=10 */
 715     container = adg_container_new();
 716     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 717     cairo_matrix_init_translate(&map, 15, 0);
 718     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 719
 720     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(path)));
 721     cairo_matrix_init_rotate(&map, M_PI_2);
 722     adg_entity_set_global_map(entity, &map);
 723     cairo_matrix_init_translate(&map, 10, 0);
 724     adg_entity_set_local_map(entity, &map);
 725     adg_container_add(container, entity);
 726
 727     entity = ADG_ENTITY(adg_toy_text_new("Global map rotated by 90"));
 728     cairo_matrix_init_translate(&map, -120, 20);
 729     adg_entity_set_global_map(entity, &map);
 730     cairo_matrix_init_translate(&map, 5, 10);
 731     adg_entity_set_local_map(entity, &map);
 732     adg_container_add(container, entity);
 733
 734     /* Original shape with local translated x+=10 and rotated by 90 */
 735     container = adg_container_new();
 736     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 737     cairo_matrix_init_translate(&map, 30, 0);
 738     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 739
 740     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(path)));
 741     cairo_matrix_init_translate(&map, 10, 0);
 742     cairo_matrix_rotate(&map, M_PI_2);
 743     adg_entity_set_local_map(entity, &map);
 744     adg_container_add(container, entity);
 745
 746     entity = ADG_ENTITY(adg_toy_text_new("Local map rotated by 90"));
 747     cairo_matrix_init_translate(&map, -120, 20);
 748     adg_entity_set_global_map(entity, &map);
 749     cairo_matrix_init_translate(&map, 5, 10);
 750     adg_entity_set_local_map(entity, &map);
 751     adg_container_add(container, entity);
 752
 753     /* Original shape with global map scaled by 0.5 */
 754     container = adg_container_new();
 755     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 756     cairo_matrix_init_translate(&map, 3.5, 15);
 757     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 758
 759     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(path)));
 760     cairo_matrix_init_scale(&map, 0.5, 0.5);
 761     adg_entity_set_global_map(entity, &map);
 762     adg_container_add(container, entity);
 763
 764     entity = ADG_ENTITY(adg_toy_text_new("Global map scaled by 0.5"));
 765     cairo_matrix_init_translate(&map, -100, 20);
 766     adg_entity_set_global_map(entity, &map);
 767     cairo_matrix_init_translate(&map, 2.5, 5);
 768     adg_entity_set_local_map(entity, &map);
 769     adg_container_add(container, entity);
 770
 771     /* Original shape with local map scaled by 0.5 */
 772     container = adg_container_new();
 773     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 774     cairo_matrix_init_translate(&map, 18, 15);
 775     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 776
 777     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(path)));
 778     cairo_matrix_init_scale(&map, 0.5, 0.5);
 779     adg_entity_set_local_map(entity, &map);
 780     adg_container_add(container, entity);
 781
 782     entity = ADG_ENTITY(adg_toy_text_new("Local map scaled by 0.5"));
 783     cairo_matrix_init_translate(&map, -100, 20);
 784     adg_entity_set_global_map(entity, &map);
 785     cairo_matrix_init_translate(&map, 2.5, 5);
 786     adg_entity_set_local_map(entity, &map);
 787     adg_container_add(container, entity);
 788
 789     /* Original shape with global and local maps scaled by 0.5 */
 790     container = adg_container_new();
 791     adg_container_add(ADG_CONTAINER(canvas), ADG_ENTITY(container));
 792     cairo_matrix_init_translate(&map, 33, 15);
 793     adg_entity_set_local_map(ADG_ENTITY(container), &map);
 794
 795     entity = ADG_ENTITY(adg_stroke_new(ADG_TRAIL(path)));
 796     cairo_matrix_init_scale(&map, 0.5, 0.5);
 797     adg_entity_set_global_map(entity, &map);
 798     adg_entity_set_local_map(entity, &map);
 799     adg_container_add(container, entity);
 800
 801     entity = ADG_ENTITY(adg_toy_text_new("Local&global scaled by 0.5"));
 802     cairo_matrix_init_translate(&map, -130, 20);
 803     adg_entity_set_global_map(entity, &map);
 804     cairo_matrix_init_translate(&map, 2.5, 5);
 805     adg_entity_set_local_map(entity, &map);
 806     adg_container_add(container, entity);
 807
 808     /* Set a decent start position and zoom */
 809     cairo_matrix_init_translate(&map, 10, -140);
 810     cairo_matrix_scale(&map, 15, 15);
 811     cairo_matrix_translate(&map, 0, 10);
 812     adg_entity_set_local_map(ADG_ENTITY(canvas), &map);
 813
 814     return canvas;
 815 }
 816
 817
 818 /**********************************************
 819  * Non specific test related stuff
 820  **********************************************/
 821
 822 static AdgPath *
 823 non_trivial_model()
 824 {
 825     AdgPath *path = adg_path_new();
 826
 827     adg_path_move_to(path,  2,  0);
 828     adg_path_line_to(path,  0,  5);
 829     adg_path_line_to(path,  2,  2);
 830     adg_path_line_to(path,  0,  8);
 831     adg_path_line_to(path,  2,  8);
 832     adg_path_line_to(path,  2, 10);
 833     adg_path_line_to(path,  3, 10);
 834     adg_path_line_to(path, 10,  9);
 835     adg_path_line_to(path,  5,  5);
 836     adg_path_line_to(path,  3,  0);
 837     adg_path_close(path);
 838
 839     return path;
 840 }
 841
 842 static void
 843 reverse_pair(const gchar *name, AdgPair *pair, AdgModel *model)
 844 {
 845     gchar *new_name;
 846     AdgPair new_pair;
 847
 848     new_name = g_strdup_printf("-%s", name);
 849     cpml_pair_copy(&new_pair, pair);
 850     new_pair.y = -new_pair.y;
 851
 852     adg_model_set_named_pair(model, new_name, &new_pair);
 853
 854     g_free(new_name);
 855 }