first commit

Makefile

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+CC = gcc
+CFLAGS = `pkg-config --cflags gtk4`
+LIBS = `pkg-config --libs gtk4`
+
+TARGET = gtk_treeview_example
+
+all: $(TARGET)
+
+$(TARGET): main.c
+	$(CC) -g $(CFLAGS) -o $(TARGET) main.c $(LIBS)
+
+clean:
+	rm -f $(TARGET)

main.c

@@ -0,0 +1,166 @@
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <glib-2.0/glib.h>
+#include <gtk-4.0/gtk/gtk.h>
+
+// Simplified TreeNode structure for demonstration purposes
+struct TreeNode_t
+{
+    gchar *text;
+    struct TreeNode_t *child;
+    struct TreeNode_t *next;
+};
+
+struct TreeNode_t *root = NULL;
+
+
+// Function to create a new TreeNode instance
+struct TreeNode_t *create_tree_node (const gchar* text)
+{
+    struct TreeNode_t *node = g_malloc0 (sizeof(struct TreeNode_t));
+    node->text = g_strdup(text);
+    node->child = NULL;
+    return node;
+}
+
+// Function to add a child node to a parent node
+void add_child_node (struct TreeNode_t *parent, struct TreeNode_t *child)
+{
+    struct TreeNode_t *cur;
+
+    if (parent->child) {
+        cur = parent->child;
+        while (cur && cur->next) {
+            cur = cur->next;
+        }
+        cur->next = child;
+    } else {
+        parent->child = child;
+    }
+}
+
+// Recursive function to free a TreeNode and its children
+void free_tree_node (struct TreeNode_t *node)
+{
+    struct TreeNode_t *cur;
+    struct TreeNode_t *tmp;
+
+    if (!node) return;
+    
+    // free siblings
+    cur = node;
+    while (cur) {
+        tmp = cur->next;
+        g_free(cur);
+        cur = tmp;
+    }
+    
+    // recursive free
+    free_tree_node(node->child);
+    g_free(node->text);
+    g_free(node);
+}
+
+// Function to simulate getting a GListModel of children for a given TreeNode
+GListModel* get_children_model (struct TreeNode_t *parent)
+{
+    struct TreeNode_t *child;
+
+    GtkStringList *list = gtk_string_list_new(NULL);
+    
+    if (parent) {
+        child = parent->child;
+        while(child) {
+             gtk_string_list_append(list, child->text);
+             child = child->next;
+        }
+    }
+    return G_LIST_MODEL(list);
+}
+
+// GtkTreeListModelCreateModelFunc callback implementation
+GListModel* create_model_func(GObject *item, gpointer user_data)
+{
+    struct TreeNode_t *cur = root;
+    gchar *string =  gtk_string_object_get_string(GTK_STRING_OBJECT(item));
+    
+    if (strcmp(string, "Child 1")) {
+        cur = root->child;
+    }
+    else if (strcmp(string, "Child 2")) {
+        cur = root->child->next;
+    } else {
+        cur = NULL;
+    }
+
+    return get_children_model(cur);
+}
+
+void setup_factory (GtkListItemFactory *factory, GtkListItem *list_item, gpointer user_data)
+{
+        GtkWidget *label = gtk_label_new(NULL);
+        gtk_list_item_set_child(list_item, label);
+}
+
+void bind_factory (GtkListItemFactory *factory, GtkListItem *list_item, gpointer user_data)
+{
+        GObject *item = gtk_list_item_get_item(list_item);
+        const gchar *text = gtk_string_object_get_string(GTK_STRING_OBJECT(item));
+        GtkWidget *label = gtk_list_item_get_child(list_item);
+        gtk_label_set_text(GTK_LABEL(label), text);
+}
+
+// Application activation callback
+void app_activate (GApplication *app, gpointer user_data)
+{
+    GtkWidget *window = gtk_application_window_new(GTK_APPLICATION(app));
+    gtk_window_set_title(GTK_WINDOW(window), "GTK4 Tree Example");
+    gtk_window_set_default_size(GTK_WINDOW(window), 400, 300);
+
+    GtkStringList *model = gtk_string_list_new(NULL);
+    gtk_string_list_append(model, root->text);
+
+    // Create a GtkTreeListModel
+    GtkTreeListModel *tree_model = gtk_tree_list_model_new(
+        G_LIST_MODEL(model),
+        TRUE, // Passthrough - False in actual usage with dynamic children retrieval
+        TRUE, // autoexpand
+        (GtkTreeListModelCreateModelFunc)create_model_func,
+        NULL,
+        NULL  //(GDestroyNotify)free_tree_node
+    );
+
+    // Create and setup the list view and item factory
+    GtkListItemFactory *factory = gtk_signal_list_item_factory_new();
+    g_signal_connect(factory, "setup", G_CALLBACK(setup_factory), NULL);
+    g_signal_connect(factory, "bind", G_CALLBACK(bind_factory), NULL);
+
+    GtkWidget *list_view = gtk_list_view_new(GTK_SELECTION_MODEL(gtk_no_selection_new(tree_model)), factory);
+
+    gtk_window_set_child(GTK_WINDOW(window), list_view);
+    gtk_widget_set_visible(window, TRUE);
+}
+
+int main (int argc, char **argv)
+{
+    // Create a simple tree structure
+    root = create_tree_node("Root");
+    add_child_node(root, create_tree_node("Child 1"));
+    add_child_node(root, create_tree_node("Child 2"));
+    GtkApplication *app = gtk_application_new("org.gtk.example", G_APPLICATION_FLAGS_NONE);
+    g_signal_connect(app, "activate", G_CALLBACK(app_activate), NULL);
+    int status = g_application_run(G_APPLICATION(app), argc, argv);
+    g_object_unref(app);
+    free_tree_node(root); // Ensure to free the tree structure after the app has finished
+    return status;
+}
+

manifest.scm

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+;;
+;; Dépendances sous GNU Guix
+;;
+
+
+(specifications->manifest
+  (list
+      "bash"
+      "coreutils"
+      "gcc-toolchain"
+      "pkg-config"
+      "valgrind"
+      "findutils"
+      "gdb"
+      "make"
+      "gtk"
+      "libxml2"
+      "glu"
+      "glew"
+      "glfw"
+      "cglm"
+      "libepoxy"
+      "pango@1.90.0"
+      "xorgproto"
+      "glib"
+      "mesa-headers"
+      "mesa"
+      "libadwaita"
+   )
+)