[libgd/wip/ernestask/gtk4: 1/2] Add styled text renderer test

[Ernestas Kulik <ernestask src gnome org>]

commit ec975b97ba486570bae807a9176ffbd282e4e934
Author: Ernestas Kulik <ernestask gnome org>
Date:   Sun Mar 4 17:14:36 2018 +0200

    Add styled text renderer test

 tests/meson.build                 |    8 +++
 tests/test-styled-text-renderer.c |  114 +++++++++++++++++++++++++++++++++++++
 2 files changed, 122 insertions(+), 0 deletions(-)
---
diff --git a/tests/meson.build b/tests/meson.build
index c670626..15981cb 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -3,3 +3,11 @@ if get_option('with-tagged-entry')
     executable(t, t + '.c', dependencies : libgd_dep)
   endforeach
 endif
+
+if (get_option('with-main-icon-view') or
+    get_option('with-main-list-view') or
+    get_option('with-main-view'))
+  executable('test-styled-text-renderer',
+    'test-styled-text-renderer.c',
+    dependencies: libgd_dep)
+endif
diff --git a/tests/test-styled-text-renderer.c b/tests/test-styled-text-renderer.c
new file mode 100644
index 0000000..f5697e7
--- /dev/null
+++ b/tests/test-styled-text-renderer.c
@@ -0,0 +1,114 @@
+#include <stdlib.h>
+
+#include <gtk/gtk.h>
+
+#include <libgd/gd-styled-text-renderer.h>
+
+static const gchar *test_data = "Lorem ipsum dolor sit amet, consectetur "
+                                "adipiscing elit, sed do eiusmod tempor "
+                                "incididunt ut labore et dolore magna aliqua. "
+                                "Ut enim ad minim veniam, quis nostrud "
+                                "exercitation ullamco laboris nisi ut aliquip "
+                                "ex ea commodo consequat. Duis aute irure "
+                                "dolor in reprehenderit in voluptate velit "
+                                "esse cillum dolore eu fugiat nulla pariatur. "
+                                "Excepteur sint occaecat cupidatat non "
+                                "proident, sunt in culpa qui officia deserunt "
+                                "mollit anim id est laborum.";
+
+static const gchar *test_css = ".test-class {"
+                               "  color: mix(@theme_fg_color, @theme_bg_color, 0.50);"
+                               "}"
+                               ".test-class:selected {"
+                               "  color: rgb(0, 255, 0);"
+                               "}";
+
+static void
+on_parsing_error (GtkCssProvider *provider,
+                  GtkCssSection  *section,
+                  GError         *error,
+                  gpointer        user_data)
+{
+  g_error ("Parsing CSS failed at %u:%u – %u:%u: %s",
+           gtk_css_section_get_start_line (section),
+           gtk_css_section_get_start_position (section),
+           gtk_css_section_get_end_line (section),
+           gtk_css_section_get_end_position (section),
+           error->message);
+}
+
+static void
+populate_model (GtkListStore *list_store)
+{
+  g_auto (GStrv) data = NULL;
+
+  data = g_strsplit (test_data, " ", -1);
+
+  for (int i = 0; data[i] != NULL; i++)
+    {
+      GtkTreeIter iter;
+
+      gtk_list_store_append (list_store, &iter);
+
+      gtk_list_store_set (list_store, &iter, 0, data[i], -1);
+    }
+}
+
+static void
+on_destroy (GtkWidget *widget,
+            gpointer   user_data)
+{
+  gtk_main_quit ();
+}
+
+gint
+main (gint  argc,
+      GStrv argv)
+{
+  g_autoptr (GtkCssProvider) css_provider = NULL;
+  GdkDisplay *display;
+  GtkCellRenderer *cell_renderer;
+  GtkTreeViewColumn *column;
+  g_autoptr (GtkListStore) list_store = NULL;
+  GtkWidget *tree_view;
+  GtkWidget *scrolled_window;
+  GtkWidget *window;
+
+  gtk_init ();
+
+  css_provider = gtk_css_provider_new ();
+  g_signal_connect (css_provider, "parsing-error", G_CALLBACK (on_parsing_error), NULL);
+  gtk_css_provider_load_from_data (css_provider, test_css, -1);
+
+  display = gdk_display_get_default ();
+  gtk_style_context_add_provider_for_display (display, GTK_STYLE_PROVIDER (css_provider),
+                                              GTK_STYLE_PROVIDER_PRIORITY_USER);
+
+  cell_renderer = gd_styled_text_renderer_new ();
+  gd_styled_text_renderer_add_class (GD_STYLED_TEXT_RENDERER (cell_renderer),
+                                     "test-class");
+
+  column = gtk_tree_view_column_new_with_attributes ("Text", cell_renderer,
+                                                     "text", 0,
+                                                     NULL);
+
+  list_store = gtk_list_store_new (1, G_TYPE_STRING);
+  populate_model (list_store);
+
+  tree_view = gtk_tree_view_new ();
+  gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), column);
+  gtk_tree_view_set_model (GTK_TREE_VIEW (tree_view), GTK_TREE_MODEL (list_store));
+
+  scrolled_window = gtk_scrolled_window_new (NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (scrolled_window), tree_view);
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  g_signal_connect (window, "destroy", G_CALLBACK (on_destroy), NULL);
+  gtk_container_add (GTK_CONTAINER (window), scrolled_window);
+  gtk_widget_set_size_request (window, 640, 480);
+  gtk_widget_show (window);
+
+  gtk_main ();
+
+  return EXIT_SUCCESS;
+}