src/adg/tests/test-gtk-layout.c

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007-2021  Nicola Fontana <ntd at entidi.it>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20
  21 #include <config.h>
  22 #include <adg-test.h>
  23 #include <adg.h>
  24
  25
  26 static AdgGtkLayout *
  27 _adg_gtk_layout_new(void)
  28 {
  29     AdgGtkLayout *layout;
  30     AdgCanvas *canvas;
  31
  32     canvas = adg_test_canvas();
  33     layout = ADG_GTK_LAYOUT(adg_gtk_layout_new_with_canvas(canvas));
  34     g_object_unref(canvas);
  35
  36     return layout;
  37 }
  38
  39 static void
  40 _adg_property_hadjustment(void)
  41 {
  42     AdgGtkLayout *layout;
  43     GtkAdjustment *valid_adjustment, *invalid_adjustment, *hadjustment;
  44
  45     layout = ADG_GTK_LAYOUT(adg_gtk_layout_new());
  46     valid_adjustment = (GtkAdjustment *) gtk_adjustment_new(0, 0, 0, 0, 0, 0);
  47     invalid_adjustment = adg_test_invalid_pointer();
  48
  49     g_object_ref(valid_adjustment);
  50
  51     /* Using the public APIs */
  52     g_test_message("The implementation must provide a fallback adjustment");
  53     hadjustment = adg_gtk_layout_get_hadjustment(layout);
  54     g_assert_true(GTK_IS_ADJUSTMENT(hadjustment));
  55
  56     adg_gtk_layout_set_hadjustment(layout, NULL);
  57     hadjustment = adg_gtk_layout_get_hadjustment(layout);
  58     g_assert_true(GTK_IS_ADJUSTMENT(hadjustment));
  59
  60     adg_gtk_layout_set_hadjustment(layout, valid_adjustment);
  61     hadjustment = adg_gtk_layout_get_hadjustment(layout);
  62     g_assert_true(hadjustment == valid_adjustment);
  63
  64     adg_gtk_layout_set_hadjustment(layout, invalid_adjustment);
  65     hadjustment = adg_gtk_layout_get_hadjustment(layout);
  66     g_assert_true(hadjustment == valid_adjustment);
  67
  68     adg_gtk_layout_set_hadjustment(layout, NULL);
  69     hadjustment = adg_gtk_layout_get_hadjustment(layout);
  70     g_assert_true(hadjustment != valid_adjustment);
  71     g_assert_true(GTK_IS_ADJUSTMENT(hadjustment));
  72
  73     /* Using GObject property methods */
  74     g_object_set(layout, "hadjustment", NULL, NULL);
  75     g_object_get(layout, "hadjustment", &hadjustment, NULL);
  76     g_assert_true(GTK_IS_ADJUSTMENT(hadjustment));
  77     g_object_unref(hadjustment);
  78
  79     g_object_set(layout, "hadjustment", valid_adjustment, NULL);
  80     g_object_get(layout, "hadjustment", &hadjustment, NULL);
  81     g_assert_true(hadjustment == valid_adjustment);
  82     g_object_unref(hadjustment);
  83
  84     g_object_set(layout, "hadjustment", invalid_adjustment, NULL);
  85     g_object_get(layout, "hadjustment", &hadjustment, NULL);
  86     g_assert_true(hadjustment == valid_adjustment);
  87     g_object_unref(hadjustment);
  88
  89     g_object_set(layout, "hadjustment", NULL, NULL);
  90     g_object_get(layout, "hadjustment", &hadjustment, NULL);
  91     g_assert_true(hadjustment != valid_adjustment);
  92     g_assert_true(GTK_IS_ADJUSTMENT(hadjustment));
  93     g_object_unref(hadjustment);
  94
  95     gtk_widget_destroy(GTK_WIDGET(layout));
  96     g_object_unref(valid_adjustment);
  97 }
  98
  99 static void
 100 _adg_property_vadjustment(void)
 101 {
 102     AdgGtkLayout *layout;
 103     GtkAdjustment *valid_adjustment, *invalid_adjustment, *vadjustment;
 104
 105     layout = ADG_GTK_LAYOUT(adg_gtk_layout_new());
 106     valid_adjustment = (GtkAdjustment *) gtk_adjustment_new(0, 0, 0, 0, 0, 0);
 107     invalid_adjustment = adg_test_invalid_pointer();
 108
 109     g_object_ref(valid_adjustment);
 110
 111     /* Using the public APIs */
 112     g_test_message("The implementation must provide a fallback adjustment");
 113     vadjustment = adg_gtk_layout_get_vadjustment(layout);
 114     g_assert_true(GTK_IS_ADJUSTMENT(vadjustment));
 115
 116     adg_gtk_layout_set_vadjustment(layout, NULL);
 117     vadjustment = adg_gtk_layout_get_vadjustment(layout);
 118     g_assert_true(GTK_IS_ADJUSTMENT(vadjustment));
 119
 120     adg_gtk_layout_set_vadjustment(layout, valid_adjustment);
 121     vadjustment = adg_gtk_layout_get_vadjustment(layout);
 122     g_assert_true(vadjustment == valid_adjustment);
 123
 124     adg_gtk_layout_set_vadjustment(layout, invalid_adjustment);
 125     vadjustment = adg_gtk_layout_get_vadjustment(layout);
 126     g_assert_true(vadjustment == valid_adjustment);
 127
 128     adg_gtk_layout_set_vadjustment(layout, NULL);
 129     vadjustment = adg_gtk_layout_get_vadjustment(layout);
 130     g_assert_true(vadjustment != valid_adjustment);
 131     g_assert_true(GTK_IS_ADJUSTMENT(vadjustment));
 132
 133     /* Using GObject property methods */
 134     g_object_set(layout, "vadjustment", NULL, NULL);
 135     g_object_get(layout, "vadjustment", &vadjustment, NULL);
 136     g_assert_true(GTK_IS_ADJUSTMENT(vadjustment));
 137     g_object_unref(vadjustment);
 138
 139     g_object_set(layout, "vadjustment", valid_adjustment, NULL);
 140     g_object_get(layout, "vadjustment", &vadjustment, NULL);
 141     g_assert_true(vadjustment == valid_adjustment);
 142     g_object_unref(vadjustment);
 143
 144     g_object_set(layout, "vadjustment", invalid_adjustment, NULL);
 145     g_object_get(layout, "vadjustment", &vadjustment, NULL);
 146     g_assert_true(vadjustment == valid_adjustment);
 147     g_object_unref(vadjustment);
 148
 149     g_object_set(layout, "vadjustment", NULL, NULL);
 150     g_object_get(layout, "vadjustment", &vadjustment, NULL);
 151     g_assert_true(vadjustment != valid_adjustment);
 152     g_assert_true(GTK_IS_ADJUSTMENT(vadjustment));
 153     g_object_unref(vadjustment);
 154
 155     gtk_widget_destroy(GTK_WIDGET(layout));
 156     g_object_unref(valid_adjustment);
 157 }
 158
 159 #ifdef GTK3_ENABLED
 160
 161 static void
 162 _adg_property_hscroll_policy(void)
 163 {
 164     AdgGtkLayout *layout;
 165     GtkScrollablePolicy policy;
 166
 167     layout = ADG_GTK_LAYOUT(adg_gtk_layout_new());
 168
 169     /* Using the public APIs */
 170     g_assert_cmpint(gtk_scrollable_get_hscroll_policy(GTK_SCROLLABLE(layout)), ==, GTK_SCROLL_MINIMUM);
 171
 172     gtk_scrollable_set_hscroll_policy(GTK_SCROLLABLE(layout), GTK_SCROLL_NATURAL);
 173     g_assert_cmpint(gtk_scrollable_get_hscroll_policy(GTK_SCROLLABLE(layout)), ==, GTK_SCROLL_NATURAL);
 174
 175     g_object_set(layout, "hscroll-policy", GTK_SCROLL_MINIMUM, NULL);
 176     g_object_get(layout, "hscroll-policy", &policy, NULL);
 177     g_assert_cmpint(policy, ==, GTK_SCROLL_MINIMUM);
 178
 179     gtk_widget_destroy(GTK_WIDGET(layout));
 180 }
 181
 182 static void
 183 _adg_property_vscroll_policy(void)
 184 {
 185     AdgGtkLayout *layout;
 186     GtkScrollablePolicy policy;
 187
 188     layout = ADG_GTK_LAYOUT(adg_gtk_layout_new());
 189
 190     /* Using the public APIs */
 191     g_assert_cmpint(gtk_scrollable_get_vscroll_policy(GTK_SCROLLABLE(layout)), ==, GTK_SCROLL_MINIMUM);
 192
 193     gtk_scrollable_set_vscroll_policy(GTK_SCROLLABLE(layout), GTK_SCROLL_NATURAL);
 194     g_assert_cmpint(gtk_scrollable_get_vscroll_policy(GTK_SCROLLABLE(layout)), ==, GTK_SCROLL_NATURAL);
 195
 196     g_object_set(layout, "vscroll-policy", GTK_SCROLL_MINIMUM, NULL);
 197     g_object_get(layout, "vscroll-policy", &policy, NULL);
 198     g_assert_cmpint(policy, ==, GTK_SCROLL_MINIMUM);
 199
 200     gtk_widget_destroy(GTK_WIDGET(layout));
 201 }
 202
 203 #endif
 204
 205 static void
 206 _adg_method_size_allocate(void)
 207 {
 208     AdgGtkLayout *layout;
 209     AdgCanvas *canvas;
 210     cairo_matrix_t scale_x200;
 211     GtkAllocation allocation;
 212     GtkAdjustment *adjustment;
 213
 214     layout = ADG_GTK_LAYOUT(adg_gtk_layout_new());
 215     cairo_matrix_init_scale(&scale_x200, 200, 200);
 216
 217     /* Allocation does not work if the widget is not visible: without a
 218      * top-level this will hopefully do not require an X server running */
 219     gtk_widget_show(GTK_WIDGET(layout));
 220
 221     adjustment = adg_gtk_layout_get_hadjustment(layout);
 222     g_assert_nonnull(adjustment);
 223     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), 0);
 224     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 0);
 225     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 0);
 226     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 227
 228     adjustment = adg_gtk_layout_get_vadjustment(layout);
 229     g_assert_nonnull(adjustment);
 230     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), 0);
 231     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 0);
 232     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 0);
 233     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 234
 235     allocation.width = 100;
 236     allocation.height = 100;
 237     gtk_widget_size_allocate(GTK_WIDGET(layout), &allocation);
 238
 239     adjustment = adg_gtk_layout_get_hadjustment(layout);
 240     g_assert_nonnull(adjustment);
 241     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), 0);
 242     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 0);
 243     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 0);
 244     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 245
 246     adjustment = adg_gtk_layout_get_vadjustment(layout);
 247     g_assert_nonnull(adjustment);
 248     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), 0);
 249     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 0);
 250     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 0);
 251     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 252
 253     /* The allocation phase is one-shot, so I must destroy and recreate
 254      * the AdgGtkLayout widget every time to trigger the size allocation */
 255     gtk_widget_destroy(GTK_WIDGET(layout));
 256     layout = _adg_gtk_layout_new();
 257     canvas = adg_gtk_area_get_canvas(ADG_GTK_AREA(layout));
 258     gtk_widget_show(GTK_WIDGET(layout));
 259
 260     adg_entity_transform_global_map(ADG_ENTITY(canvas),
 261                                     &scale_x200,
 262                                     ADG_TRANSFORM_AFTER);
 263
 264     adjustment = adg_gtk_layout_get_hadjustment(layout);
 265     g_assert_nonnull(adjustment);
 266     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), 0);
 267     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 0);
 268     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 0);
 269     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 270
 271     adjustment = adg_gtk_layout_get_vadjustment(layout);
 272     g_assert_nonnull(adjustment);
 273     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), 0);
 274     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 0);
 275     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 0);
 276     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 277
 278     allocation.width = 100;
 279     allocation.height = 100;
 280     gtk_widget_size_allocate(GTK_WIDGET(layout), &allocation);
 281
 282     adjustment = adg_gtk_layout_get_hadjustment(layout);
 283     g_assert_nonnull(adjustment);
 284     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), -50);
 285     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 150);
 286     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 100);
 287     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 288
 289     adjustment = adg_gtk_layout_get_vadjustment(layout);
 290     g_assert_nonnull(adjustment);
 291     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), -50);
 292     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 150);
 293     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 100);
 294     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 295
 296     allocation.width = 20;
 297     allocation.height = 30;
 298     gtk_widget_size_allocate(GTK_WIDGET(layout), &allocation);
 299
 300     adjustment = adg_gtk_layout_get_hadjustment(layout);
 301     g_assert_nonnull(adjustment);
 302     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), -50);
 303     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 150);
 304     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 20);
 305     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 306
 307     adjustment = adg_gtk_layout_get_vadjustment(layout);
 308     g_assert_nonnull(adjustment);
 309     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), -50);
 310     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 150);
 311     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 30);
 312     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 0);
 313
 314     adg_gtk_area_canvas_changed(ADG_GTK_AREA(layout), NULL);
 315
 316     gtk_widget_destroy(GTK_WIDGET(layout));
 317 }
 318
 319 static void
 320 _adg_method_value_changed(void)
 321 {
 322     AdgGtkLayout *layout;
 323     AdgCanvas *canvas;
 324     cairo_matrix_t scale_x200;
 325     GtkAllocation allocation;
 326     GtkAdjustment *adjustment;
 327
 328     layout = _adg_gtk_layout_new();
 329     canvas = adg_gtk_area_get_canvas(ADG_GTK_AREA(layout));
 330     cairo_matrix_init_scale(&scale_x200, 200, 200);
 331
 332     adg_entity_transform_global_map(ADG_ENTITY(canvas),
 333                                     &scale_x200,
 334                                     ADG_TRANSFORM_AFTER);
 335
 336     /* Allocation does not work if the widget is not visible: without a
 337      * top-level this will hopefully do not require an X server running */
 338     gtk_widget_show(GTK_WIDGET(layout));
 339
 340     allocation.width = 100;
 341     allocation.height = 100;
 342     gtk_widget_size_allocate(GTK_WIDGET(layout), &allocation);
 343
 344     adjustment = adg_gtk_layout_get_hadjustment(layout);
 345     gtk_adjustment_set_value(adjustment, 100);
 346
 347     adjustment = adg_gtk_layout_get_vadjustment(layout);
 348     gtk_adjustment_set_value(adjustment, 40);
 349
 350     adjustment = adg_gtk_layout_get_hadjustment(layout);
 351     g_assert_nonnull(adjustment);
 352     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), -50);
 353     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 150);
 354     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 100);
 355 #ifdef GTK2_ENABLED
 356     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 100);
 357 #endif
 358 #ifdef GTK3_ENABLED
 359     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 50);
 360 #endif
 361
 362     adjustment = adg_gtk_layout_get_vadjustment(layout);
 363     g_assert_nonnull(adjustment);
 364     adg_assert_isapprox(gtk_adjustment_get_lower(adjustment), -50);
 365     adg_assert_isapprox(gtk_adjustment_get_upper(adjustment), 150);
 366     adg_assert_isapprox(gtk_adjustment_get_page_size(adjustment), 100);
 367     adg_assert_isapprox(gtk_adjustment_get_value(adjustment), 40);
 368
 369     gtk_widget_destroy(GTK_WIDGET(layout));
 370 }
 371
 372 static void
 373 _adg_method_set_parent(void)
 374 {
 375     AdgGtkLayout *layout;
 376     GtkScrolledWindow *scrolled_window;
 377     GtkPolicyType hpolicy, vpolicy;
 378     gint width, height;
 379
 380     layout = _adg_gtk_layout_new();
 381     scrolled_window = GTK_SCROLLED_WINDOW(gtk_scrolled_window_new(NULL, NULL));
 382
 383     gtk_scrolled_window_set_policy(scrolled_window,
 384                                    GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS);
 385     gtk_scrolled_window_get_policy(scrolled_window, &hpolicy, &vpolicy);
 386     g_assert_cmpint(hpolicy, ==, GTK_POLICY_ALWAYS);
 387     g_assert_cmpint(vpolicy, ==, GTK_POLICY_ALWAYS);
 388
 389     gtk_widget_get_size_request(GTK_WIDGET(scrolled_window), &width, &height);
 390     g_assert_cmpint(width, ==, -1);
 391     g_assert_cmpint(height, ==, -1);
 392
 393     /* Adding layout inside scrolled_window triggers some customization
 394      * of the latter */
 395     gtk_container_add(GTK_CONTAINER(scrolled_window), GTK_WIDGET(layout));
 396
 397     /* Ensure the scrolling policy is set to NEVER */
 398     gtk_scrolled_window_get_policy(scrolled_window, &hpolicy, &vpolicy);
 399     g_assert_cmpint(hpolicy, ==, GTK_POLICY_NEVER);
 400     g_assert_cmpint(vpolicy, ==, GTK_POLICY_NEVER);
 401
 402     /* Check the scrolled window size has been updated */
 403     gtk_widget_get_size_request(GTK_WIDGET(scrolled_window), &width, &height);
 404
 405     /* The current implementation adds 1 pixel margin, so 1x1 becomes 3x3 */
 406     g_assert_cmpint(width, ==, 3);
 407     g_assert_cmpint(height, ==, 3);
 408
 409     gtk_widget_destroy(GTK_WIDGET(scrolled_window));
 410 }
 411
 412
 413 int
 414 main(int argc, char *argv[])
 415 {
 416     adg_test_init(&argc, &argv);
 417     gtk_init_check(&argc, &argv);
 418
 419     adg_test_add_object_checks("/adg/gtk/layout/type/object", ADG_GTK_TYPE_LAYOUT);
 420
 421     g_test_add_func("/adg-gtk/layout/property/hadjustment", _adg_property_hadjustment);
 422     g_test_add_func("/adg-gtk/layout/property/vadjustment", _adg_property_vadjustment);
 423 #ifdef GTK3_ENABLED
 424     g_test_add_func("/adg-gtk/layout/property/hscroll-policy", _adg_property_hscroll_policy);
 425     g_test_add_func("/adg-gtk/layout/property/vscroll-policy", _adg_property_vscroll_policy);
 426 #endif
 427
 428     g_test_add_func("/adg-gtk/layout/method/size-allocate", _adg_method_size_allocate);
 429     g_test_add_func("/adg-gtk/layout/method/value-changed", _adg_method_value_changed);
 430     g_test_add_func("/adg-gtk/layout/method/parent-set", _adg_method_set_parent);
 431
 432     return g_test_run();
 433 }