forked from AuroraMiddleware/gtk
gtk-demo: Make the colors demo populate incrementally
Add a refill button that incrementally refills the color demo. This is useful to test how the grid view operates when the model is frequently changed.
This commit is contained in:
Matthias Clasen
parent
8475d88af0
commit
a10340859d
@ -242,30 +242,54 @@ gtk_color_new (const char *name,
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return result;
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}
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static GListModel *
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create_colors_model (void)
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typedef struct
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{
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GListStore *result;
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GtkColor *color;
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GtkWidget *widget;
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GBytes *data;
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GListStore *store;
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char **lines;
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guint n;
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guint i;
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} ColorData;
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result = g_list_store_new (GTK_TYPE_COLOR);
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data = g_resources_lookup_data ("/listview_colors/color.names.txt", 0, NULL);
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lines = g_strsplit (g_bytes_get_data (data, NULL), "\n", 0);
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static void
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free_color_data (gpointer data)
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{
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ColorData *cd = data;
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for (i = 0; lines[i]; i++)
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if (cd->widget)
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gtk_widget_set_sensitive (cd->widget, TRUE);
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g_bytes_unref (cd->data);
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g_object_unref (cd->store);
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g_strfreev (cd->lines);
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g_free (cd);
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}
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static gboolean
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add_color (GtkWidget *widget,
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GdkFrameClock *clock,
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gpointer data)
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{
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ColorData *cd = data;
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const char *name;
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char **fields;
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int red, green, blue;
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int h, s, v;
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GtkColor *color;
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guint64 start, now;
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start = g_get_monotonic_time ();
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while (cd->i < cd->n)
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{
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const char *name;
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char **fields;
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int red, green, blue;
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int h, s, v;
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const char *line = cd->lines[cd->i];
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if (lines[i][0] == '#' || lines[i][0] == '\0')
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cd->i++;
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if (line[0] == '#' || line[0] == '\0')
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continue;
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fields = g_strsplit (lines[i], " ", 0);
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fields = g_strsplit (line, " ", 0);
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name = fields[1];
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red = atoi (fields[3]);
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green = atoi (fields[4]);
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@ -275,16 +299,67 @@ create_colors_model (void)
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v = atoi (fields[11]);
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color = gtk_color_new (name, red / 255., green / 255., blue / 255., h, s, v);
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g_list_store_append (result, color);
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g_list_store_append (cd->store, color);
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g_object_unref (color);
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g_strfreev (fields);
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now = g_get_monotonic_time ();
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if (now > start + 4000)
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return G_SOURCE_CONTINUE;
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}
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g_strfreev (lines);
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g_bytes_unref (data);
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return G_SOURCE_REMOVE;
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}
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return G_LIST_MODEL (result);
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static void
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populate_colors_model (GtkWidget *widget,
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GListStore *store)
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{
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ColorData *cd;
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cd = g_new (ColorData, 1);
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gtk_widget_set_sensitive (widget, FALSE);
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cd->widget = widget;
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cd->store = g_object_ref (store);
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cd->data = g_resources_lookup_data ("/listview_colors/color.names.txt", 0, NULL);
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cd->lines = g_strsplit (g_bytes_get_data (cd->data, NULL), "\n", 0);
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cd->n = g_strv_length (cd->lines);
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cd->i = 0;
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gtk_widget_add_tick_callback (widget, add_color, cd, free_color_data);
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}
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static void
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fill (GtkWidget *view,
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GListStore *store)
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{
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ColorData *cd;
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gboolean res;
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cd = g_new (ColorData, 1);
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cd->widget = NULL;
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cd->store = g_object_ref (store);
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cd->data = g_resources_lookup_data ("/listview_colors/color.names.txt", 0, NULL);
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cd->lines = g_strsplit (g_bytes_get_data (cd->data, NULL), "\n", 0);
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cd->n = g_strv_length (cd->lines);
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cd->i = 0;
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do {
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res = add_color (view, NULL, cd);
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} while (res == G_SOURCE_CONTINUE);
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free_color_data (cd);
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}
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static void
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refill (GtkWidget *button,
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GListStore *store)
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{
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g_list_store_remove_all (store);
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populate_colors_model (button, store);
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}
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static char *
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@ -425,6 +500,7 @@ create_color_grid (void)
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GtkWidget *gridview;
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GtkListItemFactory *factory;
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GListModel *model, *selection;
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GListStore *store;
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gridview = gtk_grid_view_new ();
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gtk_scrollable_set_hscroll_policy (GTK_SCROLLABLE (gridview), GTK_SCROLL_NATURAL);
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@ -438,15 +514,34 @@ create_color_grid (void)
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gtk_grid_view_set_max_columns (GTK_GRID_VIEW (gridview), 24);
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gtk_grid_view_set_enable_rubberband (GTK_GRID_VIEW (gridview), TRUE);
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model = G_LIST_MODEL (gtk_sort_list_model_new (create_colors_model (), NULL));
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store = g_list_store_new (GTK_TYPE_COLOR);
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fill (gridview, store);
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model = G_LIST_MODEL (gtk_sort_list_model_new (G_LIST_MODEL (store), NULL));
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selection = G_LIST_MODEL (gtk_property_selection_new (model, "selected"));
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gtk_grid_view_set_model (GTK_GRID_VIEW (gridview), selection);
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g_object_unref (selection);
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g_object_unref (model);
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g_object_unref (store);
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return gridview;
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}
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static void
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items_changed_cb (GListModel *model,
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guint position,
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guint removed,
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guint added,
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GtkWidget *label)
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{
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guint n = g_list_model_get_n_items (model);
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char *text;
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text = g_strdup_printf ("%u items", n);
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gtk_label_set_label (GTK_LABEL (label), text);
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g_free (text);
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}
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static GtkWidget *window = NULL;
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GtkWidget *
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@ -458,11 +553,12 @@ do_listview_colors (GtkWidget *do_widget)
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GtkListItemFactory *factory;
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GListStore *factories;
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GListModel *model;
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GtkSorter *sorter;
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GtkSorter *multi_sorter;
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GListStore *sorters;
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GtkExpression *expression;
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GtkWidget *button;
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GtkWidget *label;
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window = gtk_window_new ();
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gtk_window_set_title (GTK_WINDOW (window), "Colors");
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@ -483,6 +579,18 @@ do_listview_colors (GtkWidget *do_widget)
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model = gtk_grid_view_get_model (GTK_GRID_VIEW (gridview));
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g_object_get (model, "model", &model, NULL);
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button = gtk_button_new_with_mnemonic ("_Refill");
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g_signal_connect (button, "clicked",
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G_CALLBACK (refill),
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gtk_sort_list_model_get_model (GTK_SORT_LIST_MODEL (model)));
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gtk_header_bar_pack_start (GTK_HEADER_BAR (header), button);
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label = gtk_label_new ("0 items");
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g_signal_connect (gtk_grid_view_get_model (GTK_GRID_VIEW (gridview)),
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"items-changed", G_CALLBACK (items_changed_cb), label);
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gtk_header_bar_pack_start (GTK_HEADER_BAR (header), label);
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sorters = g_list_store_new (GTK_TYPE_SORTER);
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sorter = gtk_string_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "name"));
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