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WIP: Construction itérative de l'arbre. Préparation de la construction récursive.

This commit is contained in:
Jean Sirmai 2023-12-18 08:49:36 +01:00
parent 0ed20386a7
commit 9da50fa49b
Signed by: jean
GPG Key ID: FB3115C340E057E3
1 changed files with 40 additions and 27 deletions
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67
demos/gtk-demo/tree_store.c
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@ -23,6 +23,10 @@
/* GtkTreeViewColumn, GtkTreeSelection, GtkTreeModel, GtkTreeView drag-and-drop, GtkTreeSortable, GtkTreeModelSort, GtkListStore, */ /* GtkTreeViewColumn, GtkTreeSelection, GtkTreeModel, GtkTreeView drag-and-drop, GtkTreeSortable, GtkTreeModelSort, GtkListStore, */
/* GtkTreeStore, GtkCellRenderer, GtkCellEditable, GtkCellRendererPixbuf, GtkCellRendererText, GtkCellRendererToggle */ /* GtkTreeStore, GtkCellRenderer, GtkCellEditable, GtkCellRendererPixbuf, GtkCellRendererText, GtkCellRendererToggle */
/* */ /* */
/* https://developer-old.gnome.org/gtk4/stable/GtkTreeView.html#gtk-tree-view-get-path-at-pos */
/* Finds the path at the point (x , y ), relative to bin_window coordinates. */
/* Widget-relative coordinates must be converted using gtk_tree_view_convert_widget_to_bin_window_coords(). */
/* */
/* https://www.gnu.org/software/guile-gnome/docs/gtk/html/GtkCellRenderer.html */ /* https://www.gnu.org/software/guile-gnome/docs/gtk/html/GtkCellRenderer.html */
/* */ /* */
/*************************************************************************************************************************************/ /*************************************************************************************************************************************/
@ -35,7 +39,6 @@
/* */ /* */
/* gtk_tree_view_set_show_expanders (GTK_TREE_VIEW (treeview), TRUE); */ /* gtk_tree_view_set_show_expanders (GTK_TREE_VIEW (treeview), TRUE); */
/* gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (treeview), TRUE); */ /* gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (treeview), TRUE); */
/* GTK_TREE_VIEW (treeview) expanders are shown; */
/* gtk_widget_set_vexpand (treeview, TRUE); */ /* gtk_widget_set_vexpand (treeview, TRUE); */
/* gtk_tree_view_set_reorderable (GTK_TREE_VIEW (treeview), TRUE); */ /* gtk_tree_view_set_reorderable (GTK_TREE_VIEW (treeview), TRUE); */
/* */ /* */
@ -69,8 +72,11 @@ enum
}; };
/* tree data */ /* tree data */
static TreeItem N[] = { NULL };
static TreeItem M[] = { NULL };
static TreeItem L[] = {{ "M", M }, { "N", N }, { NULL }};
static TreeItem K[] = { NULL }; static TreeItem K[] = { NULL };
static TreeItem J[] = { NULL }; static TreeItem J[] = {{ "L", L }, { NULL }};
static TreeItem I[] = { NULL }; static TreeItem I[] = { NULL };
static TreeItem H[] = { NULL }; static TreeItem H[] = { NULL };
static TreeItem G[] = { NULL }; static TreeItem G[] = { NULL };
@ -80,10 +86,10 @@ static TreeItem D[] = {{ "I", I }, { "J", J }, { "K", K }, { NULL }};
static TreeItem C[] = {{ "H", H }, { NULL }}; static TreeItem C[] = {{ "H", H }, { NULL }};
static TreeItem B[] = {{ "E", E }, { "F", F }, { "G", G }, { NULL }}; static TreeItem B[] = {{ "E", E }, { "F", F }, { "G", G }, { NULL }};
static TreeItem A[] = {{ "C", C }, { "D", D }, { NULL }}; static TreeItem A[] = {{ "C", C }, { "D", D }, { NULL }};
static TreeItem R[] = {{ "A", A }, { "B", B }, { NULL }}; static TreeItem R[] = {{ "A", A }, { "B", B }, { NULL }}; // ROOT
static TreeItem O[] = {{ "R", R }, { NULL }}; // Artefact added for symmetry static TreeItem O[] = {{ "R", R }, { NULL }}; // Artefact added for symmetry
static void iterate_node(GtkTreeStore *model, static void create_node(GtkTreeStore *model,
GtkTreeIter *iter_children, GtkTreeIter *iter_children,
TreeItem *item_children, TreeItem *item_children,
GtkTreeIter *iter_parent) GtkTreeIter *iter_parent)
@ -95,8 +101,8 @@ static void iterate_node(GtkTreeStore *model,
static GtkTreeModel * static GtkTreeModel *
create_model (void) create_model (void)
{ {
TreeItem *item_0, *item_1, *item_2; TreeItem *item_0, *item_1, *item_2, *item_3, *item_4;
GtkTreeIter iter_0, iter_1, iter_2; GtkTreeIter iter_0, iter_1, iter_2, iter_3, iter_4;
GtkTreeStore *model = gtk_tree_store_new (NUM_COLUMNS, G_TYPE_STRING); GtkTreeStore *model = gtk_tree_store_new (NUM_COLUMNS, G_TYPE_STRING);
@ -104,19 +110,37 @@ create_model (void)
item_0 = O->children; item_0 = O->children;
while (item_0->label) { while (item_0->label) {
iterate_node(model, &iter_0, item_0, NULL); create_node(model, &iter_0, item_0, NULL);
if (item_0->children) { if (item_0->children) {
item_1 = item_0->children; item_1 = item_0->children;
while (item_1->label) { while (item_1->label) {
iterate_node(model, &iter_1, item_1, &iter_0); create_node(model, &iter_1, item_1, &iter_0);
if (item_1->children) { if (item_1->children) {
item_2 = item_1->children; item_2 = item_1->children;
while (item_2->label) { while (item_2->label) {
iterate_node(model, &iter_2, item_2, &iter_1); create_node(model, &iter_2, item_2, &iter_1);
if (item_2->children) {
item_3 = item_2->children;
while (item_3->label) {
create_node(model, &iter_3, item_3, &iter_2);
if (item_3->children) {
item_4 = item_3->children;
while (item_4->label) {
create_node(model, &iter_4, item_4, &iter_3);
item_4++;
}
}
item_3++;
}
}
item_2++; item_2++;
} }
} }
@ -130,21 +154,6 @@ create_model (void)
return GTK_TREE_MODEL (model); return GTK_TREE_MODEL (model);
} }
static void
add_columns (GtkTreeView *treeview)
{
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);
/* WE DON'T NEED A SECOND COLUMN UNTILL WE WANT TO REPRESENT LEAVES */
/* 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 1", renderer, "text", COLUMN_1, NULL); */
}
GtkWidget * GtkWidget *
do_tree_store (GtkWidget *do_widget) do_tree_store (GtkWidget *do_widget)
{ {
@ -186,19 +195,23 @@ do_tree_store (GtkWidget *do_widget)
/* create tree view */ /* create tree view */
treeview = gtk_tree_view_new_with_model (model); treeview = gtk_tree_view_new_with_model (model);
gtk_widget_set_vexpand (treeview, TRUE); gtk_widget_set_vexpand (treeview, TRUE);
if (1) gtk_tree_view_set_reorderable (GTK_TREE_VIEW (treeview), TRUE); gtk_tree_view_set_reorderable (GTK_TREE_VIEW (treeview), TRUE);
g_object_unref (model); g_object_unref (model);
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)), gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)),
GTK_SELECTION_MULTIPLE); GTK_SELECTION_MULTIPLE);
add_columns (GTK_TREE_VIEW (treeview)); 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); gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), treeview);
/* expand all rows after the treeview widget has been realized */ /* expand all rows after the treeview widget has been realized */
g_signal_connect (treeview, "realize", g_signal_connect (treeview, "realize",
G_CALLBACK (gtk_tree_view_expand_all), NULL); G_CALLBACK (gtk_tree_view_expand_all), NULL);
gtk_window_set_default_size (GTK_WINDOW (window), 200, 330); gtk_window_set_default_size (GTK_WINDOW (window), 200, 380);
} }
if (!gtk_widget_get_visible (window)) if (!gtk_widget_get_visible (window))