198 lines
8.7 KiB
C
198 lines
8.7 KiB
C
/************************************************** R E M E M B E R ! *****************************************************/
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/* */
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/* jean@Project:~/Gem-Graph/gem-graph-client/tree (learning)/The_Gnome_way/gtk$ guix shell -m manifest.scm --check */
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/* guix shell: vérification des variables d'environnement visibles depuis le shell « /gnu/store/ --- (a commit) --- /bin/bash »… */
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/* guix shell: Tout va bien ! Le shell a les bonnes variables d'environnement. */
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/* jean@Project:~/Gem-Graph/gem-graph-client/tree (learning)/The_Gnome_way/gtk [env] $ cd builddir/ */
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/* jean@Project:~/Gem-Graph/gem-graph-client/tree (learning)/The_Gnome_way/gtk/builddir [env] $ */
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/* jean@Project:~/Gem-Graph/gem-graph-client/tree...way/gtk/builddir [env] $ clear && meson compile && demos/gtk-demo/gtk4-demo */
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/* */
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/* -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- A Session -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- */
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/* */
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/* jean@Project:~/Gem-Graph/gem-graph-client/tree (learning)/The_Gnome_way/gtk/builddir [env] $ ctrl D (avant de fermer builder) */
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/* */
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/*************************************************************************************************************************************/
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - //
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/************************************************** <> *****************************************************/
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/* */
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/* https://developer-old.gnome.org/gtk4/stable/GtkTreeView.html */
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/* GtkTreeViewColumn, GtkTreeSelection, GtkTreeModel, GtkTreeView drag-and-drop, GtkTreeSortable, GtkTreeModelSort, GtkListStore, */
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/* GtkTreeStore, GtkCellRenderer, GtkCellEditable, GtkCellRendererPixbuf, GtkCellRendererText, GtkCellRendererToggle */
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/* */
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/* https://www.gnu.org/software/guile-gnome/docs/gtk/html/GtkCellRenderer.html */
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/* */
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/*************************************************************************************************************************************/
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/* The GtkTreeStore is used to store data in tree form, to be used later on by a GtkTreeView to display it.
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* This demo builds a simple GtkTreeStore and displays it.
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* If you're new to the GtkTreeView widgets and associates, look into the GtkListStore example first. */
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#include <gtk/gtk.h>
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#include <stdio.h>
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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/* TreeItem structure */
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typedef struct _TreeItem TreeItem;
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struct _TreeItem
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{
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const char *label;
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TreeItem *children;
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};
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/* columns */
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enum
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{
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COLUMN_0,
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NUM_COLUMNS
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};
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/* tree data */
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static TreeItem K[] = { NULL };
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static TreeItem J[] = { NULL };
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static TreeItem I[] = { NULL };
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static TreeItem H[] = { NULL };
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static TreeItem G[] = { NULL };
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static TreeItem F[] = { NULL };
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static TreeItem E[] = { NULL };
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static TreeItem D[] = {{ "I", I }, { "J", J }, { "K", K }, { NULL }};
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static TreeItem C[] = {{ "H", H }, { NULL }};
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static TreeItem B[] = {{ "E", E }, { "F", F }, { "G", G }, { NULL }};
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static TreeItem A[] = {{ "C", C }, { "D", D }, { NULL }};
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static TreeItem R[] = {{ "A", A }, { "B", B }, { NULL }};
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static TreeItem O[] = {{ "R", R }, { NULL }}; // Artefact added for symetry
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static GtkTreeModel *
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iterate_node(GtkTreeStore *model,
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TreeItem *item_parent, TreeItem *item_children,
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GtkTreeIter *iter_parent, GtkTreeIter *iter_children)
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{
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printf("parent, children : %s -> %s\n", item_parent->label, item_children->label);
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/* gtk_tree_store_append (model, &child_child_iter, &child_iter); */
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/* gtk_tree_store_set (model, &child_child_iter, COLUMN_0, item_2->label, -1); */
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return GTK_TREE_MODEL (model);
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}
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static GtkTreeModel *
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create_model (void)
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{
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GtkTreeStore *model = gtk_tree_store_new (NUM_COLUMNS, G_TYPE_STRING);
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TreeItem *item_0 = O->children;
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while (item_0->label) {
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GtkTreeIter iter;
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iterate_node(model, O, item_0, model, &iter);
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gtk_tree_store_append (model, &iter, NULL);
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gtk_tree_store_set (model, &iter, COLUMN_0, item_0->label, -1);
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TreeItem *item_1 = item_0->children;
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while (item_1->label) {
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GtkTreeIter child_iter;
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iterate_node(model, item_0, item_1, &iter, &child_iter);
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gtk_tree_store_append (model, &child_iter, &iter);
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gtk_tree_store_set (model, &child_iter, COLUMN_0, item_1->label, -1);
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TreeItem *item_2 = item_1->children;
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while (item_2->label) {
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GtkTreeIter child_child_iter;
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iterate_node(model, item_1, item_2, &child_iter, &child_child_iter);
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gtk_tree_store_append (model, &child_child_iter, &child_iter);
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gtk_tree_store_set (model, &child_child_iter, COLUMN_0, item_2->label, -1);
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item_2++;
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}
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item_1++;
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}
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item_0++;
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}
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return GTK_TREE_MODEL (model);
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}
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static void
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add_columns (GtkTreeView *treeview)
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{
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GtkCellRenderer *renderer;
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renderer = gtk_cell_renderer_text_new (); g_object_set (renderer, "xalign", 0.0, NULL);
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gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), -1,
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"Col 0", renderer, "text", COLUMN_0, NULL);
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/* WE DON'T NEED A SECOND COLUMN UNTILL WE WANT TO REPRESENT LEAVES */
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/* renderer = gtk_cell_renderer_text_new (); g_object_set (renderer, "xalign", 0.0, NULL); */
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/* gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), -1, */
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/* "Col 1", renderer, "text", COLUMN_1, NULL); */
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}
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GtkWidget *
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do_tree_store (GtkWidget *do_widget)
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{
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static GtkWidget *window = NULL;
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if (!window)
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{
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GtkWidget *vbox;
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GtkWidget *sw;
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GtkWidget *treeview;
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GtkTreeModel *model;
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/* create window, etc */
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window = gtk_window_new ();
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//gtk_window_set_display (GTK_WINDOW (window),
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// gtk_widget_get_display (do_widget));
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gtk_window_set_title (GTK_WINDOW (window), "Tree Store");
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g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
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gtk_widget_set_margin_start (vbox, 8);
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gtk_widget_set_margin_end (vbox, 8);
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gtk_widget_set_margin_top (vbox, 8);
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gtk_widget_set_margin_bottom (vbox, 8);
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gtk_window_set_child (GTK_WINDOW (window), vbox);
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gtk_box_append (GTK_BOX (vbox), gtk_label_new ("Learning GTK trees"));
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sw = gtk_scrolled_window_new ();
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gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_AUTOMATIC);
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gtk_box_append (GTK_BOX (vbox), sw);
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/* create model */
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model = create_model ();
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/* create tree view */
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treeview = gtk_tree_view_new_with_model (model);
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gtk_widget_set_vexpand (treeview, TRUE);
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g_object_unref (model);
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gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)),
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GTK_SELECTION_MULTIPLE);
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add_columns (GTK_TREE_VIEW (treeview));
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gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), treeview);
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/* expand all rows after the treeview widget has been realized */
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g_signal_connect (treeview, "realize",
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G_CALLBACK (gtk_tree_view_expand_all), NULL);
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gtk_window_set_default_size (GTK_WINDOW (window), 200, 330);
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_set_visible (window, TRUE);
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else
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gtk_window_destroy (GTK_WINDOW (window));
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return window;
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}
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