/* Tree View/List Store * * The GtkListStore is used to store data in list form, to be used * later on by a GtkTreeView to display it. This demo builds a * simple GtkListStore and displays it. See the Stock Browser * demo for a more advanced example. * */#include <gtk/gtk.h>static GtkWidget *window = NULL;typedef struct{  const gboolean  fixed;  const guint     number;  const gchar    *severity;  const gchar    *description;}Bug;enum{  COLUMN_FIXED,  COLUMN_NUMBER,  COLUMN_SEVERITY,  COLUMN_DESCRIPTION,  NUM_COLUMNS};static Bug data[] ={  { FALSE, 60482, "Normal",     "scrollable notebooks and hidden tabs" },  { FALSE, 60620, "Critical",   "gdk_window_clear_area (gdkwindow-win32.c) is not thread-safe" },  { FALSE, 50214, "Major",      "Xft support does not clean up correctly" },  { TRUE,  52877, "Major",      "GtkFileSelection needs a refresh method. " },  { FALSE, 56070, "Normal",     "Can't click button after setting in sensitive" },  { TRUE,  56355, "Normal",     "GtkLabel - Not all changes propagate correctly" },  { FALSE, 50055, "Normal",     "Rework width/height computations for TreeView" },  { FALSE, 58278, "Normal",     "gtk_dialog_set_response_sensitive () doesn't work" },  { FALSE, 55767, "Normal",     "Getters for all setters" },  { FALSE, 56925, "Normal",     "Gtkcalender size" },  { FALSE, 56221, "Normal",     "Selectable label needs right-click copy menu" },  { TRUE,  50939, "Normal",     "Add shift clicking to GtkTextView" },  { FALSE, 6112,  "Enhancement","netscape-like collapsable toolbars" },  { FALSE, 1,     "Normal",     "First bug :=)" },};static GtkTreeModel *create_model (void){  gint i = 0;  GtkListStore *store;  GtkTreeIter iter;  /* create list store */  store = gtk_list_store_new (NUM_COLUMNS,			      G_TYPE_BOOLEAN,			      G_TYPE_UINT,			      G_TYPE_STRING,			      G_TYPE_STRING);  /* add data to the list store */  for (i = 0; i < G_N_ELEMENTS (data); i++)    {      gtk_list_store_append (store, &iter);      gtk_list_store_set (store, &iter,			  COLUMN_FIXED, data[i].fixed,			  COLUMN_NUMBER, data[i].number,			  COLUMN_SEVERITY, data[i].severity,			  COLUMN_DESCRIPTION, data[i].description,			  -1);    }  return GTK_TREE_MODEL (store);}static voidfixed_toggled (GtkCellRendererToggle *cell,	       gchar                 *path_str,	       gpointer               data){  GtkTreeModel *model = (GtkTreeModel *)data;  GtkTreeIter  iter;  GtkTreePath *path = gtk_tree_path_new_from_string (path_str);  gboolean fixed;  /* get toggled iter */  gtk_tree_model_get_iter (model, &iter, path);  gtk_tree_model_get (model, &iter, COLUMN_FIXED, &fixed, -1);  /* do something with the value */  fixed ^= 1;  /* set new value */  gtk_list_store_set (GTK_LIST_STORE (model), &iter, COLUMN_FIXED, fixed, -1);  /* clean up */  gtk_tree_path_free (path);}static voidadd_columns (GtkTreeView *treeview){  GtkCellRenderer *renderer;  GtkTreeViewColumn *column;  GtkTreeModel *model = gtk_tree_view_get_model (treeview);  /* column for fixed toggles */  renderer = gtk_cell_renderer_toggle_new ();  g_signal_connect (renderer, "toggled",		    G_CALLBACK (fixed_toggled), model);  column = gtk_tree_view_column_new_with_attributes ("Fixed?",						     renderer,						     "active", COLUMN_FIXED,						     NULL);  /* set this column to a fixed sizing (of 50 pixels) */  gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),				   GTK_TREE_VIEW_COLUMN_FIXED);  gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);  gtk_tree_view_append_column (treeview, column);  /* column for bug numbers */  renderer = gtk_cell_renderer_text_new ();  column = gtk_tree_view_column_new_with_attributes ("Bug number",						     renderer,						     "text",						     COLUMN_NUMBER,						     NULL);  gtk_tree_view_column_set_sort_column_id (column, COLUMN_NUMBER);  gtk_tree_view_append_column (treeview, column);  /* column for severities */  renderer = gtk_cell_renderer_text_new ();  column = gtk_tree_view_column_new_with_attributes ("Severity",						     renderer,						     "text",						     COLUMN_SEVERITY,						     NULL);  gtk_tree_view_column_set_sort_column_id (column, COLUMN_SEVERITY);  gtk_tree_view_append_column (treeview, column);  /* column for description */  renderer = gtk_cell_renderer_text_new ();  column = gtk_tree_view_column_new_with_attributes ("Description",						     renderer,						     "text",						     COLUMN_DESCRIPTION,						     NULL);  gtk_tree_view_column_set_sort_column_id (column, COLUMN_DESCRIPTION);  gtk_tree_view_append_column (treeview, column);}GtkWidget *do_list_store (GtkWidget *do_widget){  if (!window)    {      GtkWidget *vbox;      GtkWidget *label;      GtkWidget *sw;      GtkTreeModel *model;      GtkWidget *treeview;      /* create window, etc */      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);      gtk_window_set_screen (GTK_WINDOW (window),			     gtk_widget_get_screen (do_widget));      gtk_window_set_title (GTK_WINDOW (window), "GtkListStore demo");      g_signal_connect (window, "destroy",			G_CALLBACK (gtk_widget_destroyed), &window);      gtk_container_set_border_width (GTK_CONTAINER (window), 8);      vbox = gtk_vbox_new (FALSE, 8);      gtk_container_add (GTK_CONTAINER (window), vbox);      label = gtk_label_new ("This is the bug list (note: not based on real data, it would be nice to have a nice ODBC interface to bugzilla or so, though).");      gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);      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_NEVER,				      GTK_POLICY_AUTOMATIC);      gtk_box_pack_start (GTK_BOX (vbox), sw, TRUE, TRUE, 0);      /* create tree model */      model = create_model ();      /* create tree view */      treeview = gtk_tree_view_new_with_model (model);      gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (treeview), TRUE);      gtk_tree_view_set_search_column (GTK_TREE_VIEW (treeview),				       COLUMN_DESCRIPTION);      g_object_unref (model);      gtk_container_add (GTK_CONTAINER (sw), treeview);      /* add columns to the tree view */      add_columns (GTK_TREE_VIEW (treeview));      /* finish & show */      gtk_window_set_default_size (GTK_WINDOW (window), 280, 250);    }  if (!GTK_WIDGET_VISIBLE (window))    gtk_widget_show_all (window);  else    {      gtk_widget_destroy (window);      window = NULL;    }  return window;}