/*************************************************** R E M E M B E R ! *******************************************************/ /* */ /* jean@Project:~/Gem-Graph/gem-graph-client/tree (learning)/The_Gnome_way/gtk$ guix shell -m manifest.scm --check */ /* guix shell: vérification des variables d'environnement visibles depuis le shell « /gnu/store/ --- (a commit) --- /bin/bash »… */ /* guix shell: Tout va bien ! Le shell a les bonnes variables d'environnement. */ /* jean@Project:~/Gem-Graph/gem-graph-client/tree (learning)/The_Gnome_way/gtk [env] $ cd builddir/ */ /* jean@Project:~/Gem-Graph/gem-graph-client/tree...way/gtk/builddir [env] $ clear && meson compile && demos/gtk-demo/gtk4-demo */ /* */ /* -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- A Session -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- */ /* */ /* jean@Project:~/Gem-Graph/gem-graph-client/tree (learning)/The_Gnome_way/gtk/builddir [env] $ ctrl D (avant de fermer builder) */ /* */ /****************************************************************************************************************************************/ /************************************************** W I D G E T S ********************************************************/ /* _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ */ /* _ _ _ _ _ _ _ _ _ _ _ _ _ E D I T A B L E _ _ _ _ _ _ _ _ _ _ _ _ _ _ */ /* */ /* https://developer-old.gnome.org/gtk4/stable/ch03s02.html Which widget should I use ?... */ /* https://developer-old.gnome.org/gtk4/stable/GtkCellEditable.html#GtkCellEditable-struct */ /* */ /* _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ */ /* _ _ _ _ _ _ _ _ _ _ _ _ _ _ T R E E _ _ _ _ _ _ _ _ _ _ _ _ _ _ */ /* */ /* https://developer-old.gnome.org/gtk4/stable/GtkTreeView.html */ /* https://developer-old.gnome.org/gtk4/stable/GtkTreeSelection.html#GtkTreeSelection-struct */ /* https://developer-old.gnome.org/gtk4/stable/GtkTreeView.html#gtk-tree-view-get-path-at-pos << get-path-at-pos */ /* Finds the path at the point (x , y ), relative to bin_window coordinates. Use gtk_tree_view_convert_widget_to_bin_window_coords(). */ /* https://www.gnu.org/software/guile-gnome/docs/gtk/html/GtkCellRenderer.html */ /* GtkTreeSelection, GtkTreeView drag-and-drop, GtkTreeSortable, GtkTreeModelSort, GtkCellEditable, GtkCellRendererText,... */ /* gtk_tree_view_get_search_entry (treeview) */ /* */ /****************************************************************************************************************************************/ #include #include #include "config.h" G_GNUC_BEGIN_IGNORE_DEPRECATIONS /* The GtkTreeStore is used to store data in tree form, to be used later on by a GtkTreeView to display it. */ /* TreeItem structure */ typedef struct _TreeItem TreeItem; struct _TreeItem { const char *label; TreeItem *children; }; /* columns */ enum { COLUMN_0, NUM_COLUMNS }; /* tree data */ static TreeItem E[] = {NULL}, F[] = {NULL}, G[] = {NULL}, H[] = {NULL}; static TreeItem I[] = {NULL}, K[] = {NULL}, N[] = {NULL}, M[] = {NULL}; static TreeItem L[] = {{"M", M}, {"N", N}, {NULL }}, J[] = {{"L", L}, {NULL}}; static TreeItem D[] = {{"I", I}, {"J", J}, {"K", K}, {NULL}}; static TreeItem C[] = {{"F", F}, {"G", G}, {"H", H}, {NULL}}; static TreeItem A[] = {{"D", D}, {NULL}}, B[] = {{"E", E}, {NULL}}; static TreeItem R[] = {{"A", A}, {"B", B}, {"C", C}, {NULL}}; static TreeItem O[] = {{"ROOT", R}, {NULL}}; // Artefact added for symmetry static GtkTreeModel *create_node_recursive (GtkTreeStore *model, TreeItem *current_item, GtkTreeIter *iter_parent, int depth) { GtkTreeIter iter; if (model == NULL) model = gtk_tree_store_new (NUM_COLUMNS, G_TYPE_STRING); while (current_item->label) { if (0) printf("[%d] Current label : %s\n", depth, current_item->label); gtk_tree_store_append (model, &iter, iter_parent); gtk_tree_store_set (model, &iter, COLUMN_0, current_item->label, -1); if (current_item->children) create_node_recursive (model, current_item->children, &iter, depth + 1); else break; current_item++; } if (depth == 0) return GTK_TREE_MODEL(model); // cast from GtkTreeModel to GtkTreeStore else return NULL; } GtkWidget * do_tree_store (GtkWidget *do_widget) { static GtkWidget *window = NULL; if (!window) { GtkWidget *vbox; GtkWidget *sw; // sw : 'scrolled_window' GtkWidget *treeview; GtkTreeModel *tree_model; GtkTreeStore *tree_store = NULL; /* create window, etc */ window = gtk_window_new (); gtk_window_set_title (GTK_WINDOW (window), "Tree Store"); g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window); vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8); gtk_widget_set_margin_start (vbox, 8); gtk_widget_set_margin_end (vbox, 8); gtk_widget_set_margin_top (vbox, 8); gtk_widget_set_margin_bottom (vbox, 8); gtk_window_set_child (GTK_WINDOW (window), vbox); gtk_box_append (GTK_BOX (vbox), gtk_label_new ("Learning GTK trees")); sw = gtk_scrolled_window_new (); gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_box_append (GTK_BOX (vbox), sw); /* create tree_model */ tree_model = create_node_recursive (tree_store, O, NULL, 0); /* create tree view */ treeview = gtk_tree_view_new_with_model (tree_model); gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (treeview), FALSE); gtk_widget_set_vexpand (treeview, TRUE); gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)), GTK_SELECTION_MULTIPLE); gtk_tree_view_set_reorderable (GTK_TREE_VIEW (treeview), TRUE); g_object_unref (tree_model); GtkCellRenderer *renderer; renderer = gtk_cell_renderer_text_new (); g_object_set (renderer, "xalign", 0.0, NULL); gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), -1, "Col 0", renderer, "text", COLUMN_0, NULL); gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), treeview); /* expand all rows after the treeview widget has been realized */ g_signal_connect (treeview, "realize", G_CALLBACK (gtk_tree_view_expand_all), NULL); gtk_window_set_default_size (GTK_WINDOW (window), 200, 400); } if (!gtk_widget_get_visible (window)) gtk_widget_set_visible (window, TRUE); else gtk_window_destroy (GTK_WINDOW (window)); return window; }