[gtk/wip/otte/listview-colors: 3/9] Revert "gtk-demo: Make the colors demo populate incrementally"

[Benjamin Otte <otte src gnome org>]

commit 361c7e5b33b530651f6cff5303ed0f11adb7f8c8
Author: Benjamin Otte <otte redhat com>
Date:   Sun Jun 21 03:56:53 2020 +0200

    Revert "gtk-demo: Make the colors demo populate incrementally"
    
    This eases adding a bunch of follow-up features. After those features
    have landed, this functionality will be readded.
    
    This reverts commit a10340859df6aec405d9b6fc6e25c4790137af85.

 demos/gtk-demo/listview_colors.c | 148 ++++++---------------------------------
 1 file changed, 20 insertions(+), 128 deletions(-)
---
diff --git a/demos/gtk-demo/listview_colors.c b/demos/gtk-demo/listview_colors.c
index dc623c65c8..8a0a6c3650 100644
--- a/demos/gtk-demo/listview_colors.c
+++ b/demos/gtk-demo/listview_colors.c
@@ -241,54 +241,30 @@ gtk_color_new (const char *name,
   return result;
 }
 
-typedef struct
+static GListModel *
+create_colors_model (void)
 {
-  GtkWidget *widget;
+  GListStore *result;
+  GtkColor *color;
   GBytes *data;
-  GListStore *store;
   char **lines;
-  guint n;
   guint i;
-} ColorData;
-
-static void
-free_color_data (gpointer data)
-{
-  ColorData *cd = data;
-
-  if (cd->widget)
-    gtk_widget_set_sensitive (cd->widget, TRUE);
-  g_bytes_unref (cd->data);
-  g_object_unref (cd->store);
-  g_strfreev (cd->lines);
-  g_free (cd);
-}
-
-static gboolean
-add_color (GtkWidget     *widget,
-           GdkFrameClock *clock,
-           gpointer       data)
-{
-  ColorData *cd = data;
-  const char *name;
-  char **fields;
-  int red, green, blue;
-  int h, s, v;
-  GtkColor *color;
-  guint64 start, now;
 
-  start = g_get_monotonic_time ();
+  result = g_list_store_new (GTK_TYPE_COLOR);
+  data = g_resources_lookup_data ("/listview_colors/color.names.txt", 0, NULL);
+  lines = g_strsplit (g_bytes_get_data (data, NULL), "\n", 0);
 
-  while (cd->i < cd->n)
+  for (i = 0; lines[i]; i++)
     {
-      const char *line = cd->lines[cd->i];
+      const char *name;
+      char **fields;
+      int red, green, blue;
+      int h, s, v;
 
-      cd->i++;
-
-      if (line[0] == '#' || line[0] == '\0')
+      if (lines[i][0] == '#' || lines[i][0] == '\0')
         continue;
 
-      fields = g_strsplit (line, " ", 0);
+      fields = g_strsplit (lines[i], " ", 0);
       name = fields[1];
       red = atoi (fields[3]);
       green = atoi (fields[4]);
@@ -298,67 +274,16 @@ add_color (GtkWidget     *widget,
       v = atoi (fields[11]);
 
       color = gtk_color_new (name, red / 255., green / 255., blue / 255., h, s, v);
-      g_list_store_append (cd->store, color);
+      g_list_store_append (result, color);
       g_object_unref (color);
 
       g_strfreev (fields);
-
-      now = g_get_monotonic_time ();
-      if (now > start + 4000)
-        return G_SOURCE_CONTINUE;
     }
+  g_strfreev (lines);
 
-  return G_SOURCE_REMOVE;
-}
-
-static void
-populate_colors_model (GtkWidget  *widget,
-                       GListStore *store)
-{
-  ColorData *cd;
-
-  cd = g_new (ColorData, 1);
-
-  gtk_widget_set_sensitive (widget, FALSE);
-
-  cd->widget = widget;
-  cd->store = g_object_ref (store);
-  cd->data = g_resources_lookup_data ("/listview_colors/color.names.txt", 0, NULL);
-  cd->lines = g_strsplit (g_bytes_get_data (cd->data, NULL), "\n", 0);
-  cd->n = g_strv_length (cd->lines);
-  cd->i = 0;
+  g_bytes_unref (data);
 
-  gtk_widget_add_tick_callback (widget, add_color, cd, free_color_data);
-}
-
-static void
-fill (GtkWidget *view,
-      GListStore *store)
-{
-  ColorData *cd;
-  gboolean res;
-
-  cd = g_new (ColorData, 1);
-
-  cd->widget = NULL;
-  cd->store = g_object_ref (store);
-  cd->data = g_resources_lookup_data ("/listview_colors/color.names.txt", 0, NULL);
-  cd->lines = g_strsplit (g_bytes_get_data (cd->data, NULL), "\n", 0);
-  cd->n = g_strv_length (cd->lines);
-  cd->i = 0;
-
-  do {
-    res = add_color (view, NULL, cd);
-  } while (res == G_SOURCE_CONTINUE);
-  free_color_data (cd);
-}
-
-static void
-refill (GtkWidget  *button,
-        GListStore *store)
-{
-  g_list_store_remove_all (store);
-  populate_colors_model (button, store);
+  return G_LIST_MODEL (result);
 }
 
 static char *
@@ -476,7 +401,6 @@ create_color_grid (void)
   GtkWidget *gridview;
   GtkListItemFactory *factory;
   GListModel *model, *selection;
-  GListStore *store;
 
   gridview = gtk_grid_view_new ();
   gtk_scrollable_set_hscroll_policy (GTK_SCROLLABLE (gridview), GTK_SCROLL_NATURAL);
@@ -490,34 +414,15 @@ create_color_grid (void)
   gtk_grid_view_set_max_columns (GTK_GRID_VIEW (gridview), 24);
   gtk_grid_view_set_enable_rubberband (GTK_GRID_VIEW (gridview), TRUE);
 
-  store = g_list_store_new (GTK_TYPE_COLOR);
-  fill (gridview, store);
-
-  model = G_LIST_MODEL (gtk_sort_list_model_new (G_LIST_MODEL (store), NULL));
+  model = G_LIST_MODEL (gtk_sort_list_model_new (create_colors_model (), NULL));
   selection = G_LIST_MODEL (gtk_property_selection_new (model, "selected"));
   gtk_grid_view_set_model (GTK_GRID_VIEW (gridview), selection);
   g_object_unref (selection);
   g_object_unref (model);
-  g_object_unref (store);
 
   return gridview;
 }
 
-static void
-items_changed_cb (GListModel *model,
-                  guint       position,
-                  guint       removed,
-                  guint       added,
-                  GtkWidget  *label)
-{
-  guint n = g_list_model_get_n_items (model);
-  char *text;
-
-  text = g_strdup_printf ("%u items", n);
-  gtk_label_set_label (GTK_LABEL (label), text);
-  g_free (text);
-}
-
 static GtkWidget *window = NULL;
 
 GtkWidget *
@@ -529,12 +434,11 @@ do_listview_colors (GtkWidget *do_widget)
       GtkListItemFactory *factory;
       GListStore *factories;
       GListModel *model;
+
       GtkSorter *sorter;
       GtkSorter *multi_sorter;
       GListStore *sorters;
       GtkExpression *expression;
-      GtkWidget *button;
-      GtkWidget *label;
 
       window = gtk_window_new ();
       gtk_window_set_title (GTK_WINDOW (window), "Colors");
@@ -555,18 +459,6 @@ do_listview_colors (GtkWidget *do_widget)
       model = gtk_grid_view_get_model (GTK_GRID_VIEW (gridview));
       g_object_get (model, "model", &model, NULL);
 
-      button = gtk_button_new_with_mnemonic ("_Refill");
-      g_signal_connect (button, "clicked",
-                        G_CALLBACK (refill),
-                        gtk_sort_list_model_get_model (GTK_SORT_LIST_MODEL (model)));
-
-      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), button);
-
-      label = gtk_label_new ("0 items");
-      g_signal_connect (gtk_grid_view_get_model (GTK_GRID_VIEW (gridview)),
-                        "items-changed", G_CALLBACK (items_changed_cb), label);
-      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), label);
-
       sorters = g_list_store_new (GTK_TYPE_SORTER);
 
       sorter = gtk_string_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "name"));