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gtk-demo: Reinstate incremental filling

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Do it via the new size setting on the color list.

Also add an option to set the maximum size of the color list that it'll
be filled to so rudimentary performance testing is possible.

Hint: Do not select 16777216.

This reinstates commit c16848c2bb683f7ddf51571aa5951f8a4a1ea622.
This commit is contained in:
Benjamin Otte 2020-06-21 05:21:11 +02:00
parent 456b7628ee
commit d3f7dea624
1 changed files with 96 additions and 10 deletions
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106
demos/gtk-demo/listview_colors.c
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@ -426,6 +426,21 @@ gtk_color_list_get_property (GObject *object,
}
}
static void
gtk_color_list_set_size (GtkColorList *self,
guint size)
{
guint old_size = self->size;
self->size = size;
if (self->size > old_size)
g_list_model_items_changed (G_LIST_MODEL (self), old_size, 0, self->size - old_size);
else if (old_size > self->size)
g_list_model_items_changed (G_LIST_MODEL (self), self->size, old_size - self->size, 0);
g_object_notify_by_pspec (G_OBJECT (self), list_properties[LIST_PROP_SIZE]);
}
static void
gtk_color_list_set_property (GObject *object,
guint property_id,
@ -437,14 +452,7 @@ gtk_color_list_set_property (GObject *object,
switch (property_id)
{
case LIST_PROP_SIZE:
{
guint old_size = self->size;
self->size = g_value_get_uint (value);
if (self->size > old_size)
g_list_model_items_changed (G_LIST_MODEL (self), old_size, 0, self->size - old_size);
else if (old_size > self->size)
g_list_model_items_changed (G_LIST_MODEL (self), self->size, old_size - self->size, 0);
}
gtk_color_list_set_size (self, g_value_get_uint (value));
break;
default:
@ -658,7 +666,7 @@ 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);
model = G_LIST_MODEL (gtk_sort_list_model_new (gtk_color_list_new (1<<12), NULL));
model = G_LIST_MODEL (gtk_sort_list_model_new (gtk_color_list_new (0), NULL));
selection = G_LIST_MODEL (gtk_property_selection_new (model, "selected"));
gtk_grid_view_set_model (GTK_GRID_VIEW (gridview), selection);
@ -668,6 +676,63 @@ create_color_grid (void)
return gridview;
}
static gboolean
add_colors (GtkWidget *widget,
GdkFrameClock *clock,
gpointer data)
{
GtkColorList *colors = data;
guint limit;
limit = GPOINTER_TO_UINT (g_object_get_data (data, "limit"));
gtk_color_list_set_size (colors, MIN (limit, colors->size + MAX (1, limit / 4096)));
if (colors->size >= limit)
return G_SOURCE_REMOVE;
else
return G_SOURCE_CONTINUE;
}
static void
refill (GtkWidget *button,
GtkColorList *colors)
{
gtk_color_list_set_size (colors, 0);
gtk_widget_add_tick_callback (button, add_colors, g_object_ref (colors), g_object_unref);
}
static void
limit_changed_cb (GtkDropDown *dropdown,
GParamSpec *pspec,
GtkColorList *colors)
{
guint new_limit, old_limit;
old_limit = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (colors), "limit"));
new_limit = 1 << (3 * (gtk_drop_down_get_selected (dropdown) + 1));
g_object_set_data (G_OBJECT (colors), "limit", GUINT_TO_POINTER (new_limit));
if (old_limit == colors->size)
gtk_color_list_set_size (colors, new_limit);
}
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 /", n);
gtk_label_set_label (GTK_LABEL (label), text);
g_free (text);
}
static GtkWidget *window = NULL;
GtkWidget *
@ -679,11 +744,12 @@ 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");
@ -704,6 +770,26 @@ 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 /");
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);
dropdown = gtk_drop_down_new ();
gtk_drop_down_set_from_strings (GTK_DROP_DOWN (dropdown), (const char *[]) { "8", "64", "512", "4096", "32768", "262144", "2097152", "16777216", NULL });
g_signal_connect (dropdown, "notify::selected",
G_CALLBACK (limit_changed_cb),
gtk_sort_list_model_get_model (GTK_SORT_LIST_MODEL (model)));
gtk_drop_down_set_selected (GTK_DROP_DOWN (dropdown), 3); /* 4096 */
gtk_header_bar_pack_start (GTK_HEADER_BAR (header), dropdown);
sorters = g_list_store_new (GTK_TYPE_SORTER);
sorter = gtk_string_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "name"));