/* Icon View/Icon View Basics * * The GtkIconView widget is used to display and manipulate icons. * It uses a GtkTreeModel for data storage, so the list store * example might be helpful. */ #include #include #include "demo-common.h" static GtkWidget *window = NULL; #define FOLDER_NAME "gnome-fs-directory.png" #define FILE_NAME "gnome-fs-regular.png" enum { COL_PATH, COL_DISPLAY_NAME, COL_PIXBUF, COL_IS_DIRECTORY, NUM_COLS }; static GdkPixbuf *file_pixbuf, *folder_pixbuf; gchar *parent; GtkToolItem *up_button; /* Loads the images for the demo and returns whether the operation succeeded */ static gboolean load_pixbufs (GError **error) { char *filename; if (file_pixbuf) return TRUE; /* already loaded earlier */ /* demo_find_file() looks in the current directory first, * so you can run gtk-demo without installing GTK, then looks * in the location where the file is installed. */ filename = demo_find_file (FILE_NAME, error); if (!filename) return FALSE; /* note that "error" was filled in and returned */ file_pixbuf = gdk_pixbuf_new_from_file (filename, error); g_free (filename); if (!file_pixbuf) return FALSE; /* Note that "error" was filled with a GError */ filename = demo_find_file (FOLDER_NAME, error); if (!filename) return FALSE; /* note that "error" was filled in and returned */ folder_pixbuf = gdk_pixbuf_new_from_file (filename, error); g_free (filename); return TRUE; } static void fill_store (GtkListStore *store) { GDir *dir; const gchar *name; GtkTreeIter iter; /* First clear the store */ gtk_list_store_clear (store); /* Now go through the directory and extract all the file * information */ dir = g_dir_open (parent, 0, NULL); if (!dir) return; name = g_dir_read_name (dir); while (name != NULL) { gchar *path, *display_name; gboolean is_dir; /* We ignore hidden files that start with a '.' */ if (name[0] != '.') { path = g_build_filename (parent, name, NULL); is_dir = g_file_test (path, G_FILE_TEST_IS_DIR); display_name = g_filename_to_utf8 (name, -1, NULL, NULL, NULL); gtk_list_store_append (store, &iter); gtk_list_store_set (store, &iter, COL_PATH, path, COL_DISPLAY_NAME, display_name, COL_IS_DIRECTORY, is_dir, COL_PIXBUF, is_dir ? folder_pixbuf : file_pixbuf, -1); g_free (path); g_free (display_name); } name = g_dir_read_name (dir); } g_dir_close (dir); } static gint sort_func (GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer user_data) { gboolean is_dir_a, is_dir_b; gchar *name_a, *name_b; int ret; /* We need this function because we want to sort * folders before files. */ gtk_tree_model_get (model, a, COL_IS_DIRECTORY, &is_dir_a, COL_DISPLAY_NAME, &name_a, -1); gtk_tree_model_get (model, b, COL_IS_DIRECTORY, &is_dir_b, COL_DISPLAY_NAME, &name_b, -1); if (!is_dir_a && is_dir_b) ret = 1; else if (is_dir_a && !is_dir_b) ret = -1; else { ret = g_utf8_collate (name_a, name_b); } g_free (name_a); g_free (name_b); return ret; } static GtkListStore * create_store (void) { GtkListStore *store; store = gtk_list_store_new (NUM_COLS, G_TYPE_STRING, G_TYPE_STRING, GDK_TYPE_PIXBUF, G_TYPE_BOOLEAN); /* Set sort column and function */ gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (store), sort_func, NULL, NULL); gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store), GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID, GTK_SORT_ASCENDING); return store; } static void item_activated (GtkIconView *icon_view, GtkTreePath *tree_path, gpointer user_data) { GtkListStore *store; gchar *path; GtkTreeIter iter; gboolean is_dir; store = GTK_LIST_STORE (user_data); gtk_tree_model_get_iter (GTK_TREE_MODEL (store), &iter, tree_path); gtk_tree_model_get (GTK_TREE_MODEL (store), &iter, COL_PATH, &path, COL_IS_DIRECTORY, &is_dir, -1); if (!is_dir) { g_free (path); return; } /* Replace parent with path and re-fill the model*/ g_free (parent); parent = path; fill_store (store); /* Sensitize the up button */ gtk_widget_set_sensitive (GTK_WIDGET (up_button), TRUE); } static void up_clicked (GtkToolItem *item, gpointer user_data) { GtkListStore *store; gchar *dir_name; store = GTK_LIST_STORE (user_data); dir_name = g_path_get_dirname (parent); g_free (parent); parent = dir_name; fill_store (store); /* Maybe de-sensitize the up button */ gtk_widget_set_sensitive (GTK_WIDGET (up_button), strcmp (parent, "/") != 0); } static void home_clicked (GtkToolItem *item, gpointer user_data) { GtkListStore *store; store = GTK_LIST_STORE (user_data); g_free (parent); parent = g_strdup (g_get_home_dir ()); fill_store (store); /* Sensitize the up button */ gtk_widget_set_sensitive (GTK_WIDGET (up_button), TRUE); } static void close_window(void) { gtk_widget_destroy (window); window = NULL; g_object_unref (file_pixbuf); file_pixbuf = NULL; g_object_unref (folder_pixbuf); folder_pixbuf = NULL; } GtkWidget * do_iconview (GtkWidget *do_widget) { if (!window) { GError *error; window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size (GTK_WINDOW (window), 650, 400); gtk_window_set_screen (GTK_WINDOW (window), gtk_widget_get_screen (do_widget)); gtk_window_set_title (GTK_WINDOW (window), "GtkIconView demo"); g_signal_connect (window, "destroy", G_CALLBACK (close_window), NULL); error = NULL; if (!load_pixbufs (&error)) { GtkWidget *dialog; dialog = gtk_message_dialog_new (GTK_WINDOW (window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "Failed to load an image: %s", error->message); g_error_free (error); g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL); gtk_widget_show (dialog); } else { GtkWidget *sw; GtkWidget *icon_view; GtkListStore *store; GtkWidget *vbox; GtkWidget *tool_bar; GtkToolItem *home_button; vbox = gtk_vbox_new (FALSE, 0); gtk_container_add (GTK_CONTAINER (window), vbox); tool_bar = gtk_toolbar_new (); gtk_box_pack_start (GTK_BOX (vbox), tool_bar, FALSE, FALSE, 0); up_button = gtk_tool_button_new_from_stock (GTK_STOCK_GO_UP); gtk_tool_item_set_is_important (up_button, TRUE); gtk_widget_set_sensitive (GTK_WIDGET (up_button), FALSE); gtk_toolbar_insert (GTK_TOOLBAR (tool_bar), up_button, -1); home_button = gtk_tool_button_new_from_stock (GTK_STOCK_HOME); gtk_tool_item_set_is_important (home_button, TRUE); gtk_toolbar_insert (GTK_TOOLBAR (tool_bar), home_button, -1); sw = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_ETCHED_IN); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_box_pack_start (GTK_BOX (vbox), sw, TRUE, TRUE, 0); /* Create the store and fill it with the contents of '/' */ parent = g_strdup ("/"); store = create_store (); fill_store (store); icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (store)); gtk_icon_view_set_selection_mode (GTK_ICON_VIEW (icon_view), GTK_SELECTION_MULTIPLE); g_object_unref (store); /* Connect to the "clicked" signal of the "Up" tool button */ g_signal_connect (up_button, "clicked", G_CALLBACK (up_clicked), store); /* Connect to the "clicked" signal of the "Home" tool button */ g_signal_connect (home_button, "clicked", G_CALLBACK (home_clicked), store); /* We now set which model columns that correspond to the text * and pixbuf of each item */ gtk_icon_view_set_text_column (GTK_ICON_VIEW (icon_view), COL_DISPLAY_NAME); gtk_icon_view_set_pixbuf_column (GTK_ICON_VIEW (icon_view), COL_PIXBUF); /* Connect to the "item-activated" signal */ g_signal_connect (icon_view, "item-activated", G_CALLBACK (item_activated), store); gtk_container_add (GTK_CONTAINER (sw), icon_view); gtk_widget_grab_focus (icon_view); } } if (!gtk_widget_get_visible (window)) gtk_widget_show_all (window); else { gtk_widget_destroy (window); window = NULL; } return window; }