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Problem You would like to display grid lines in a GtkTreeView as shown below. In this Part 2, we show a treeview with a treestore (i.e. a tree structure).
Solution
- Set up the treeview with treestore as outlined in How to display a tree structure from array?
- To add the grid lines, use this method (available in gtk+2.10 and above):
GtkTreeView::set_grid_lines()
- The constants available are:
- Gtk::TREE_VIEW_GRID_LINES_NONE
- Gtk::TREE_VIEW_GRID_LINES_HORIZONTAL
- Gtk::TREE_VIEW_GRID_LINES_VERTICAL
- Gtk::TREE_VIEW_GRID_LINES_BOTH
Important Note: This only works for PHP-GTK2 compliled with gtk+ v2.10 and above. If you are using an older version, for linux, you may follow the step-by-step instructions to recompile php-gtk2 with gtk+ v2.10. For windows, please refer to How to install php gtk2 on windows? You may also want to take a look here to see some of the new exciting PHP-GTK2 Functionalities.
Sample Code 1
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| <?php
$window = new GtkWindow();
$window->set_title($argv[0]);
$window->set_size_request(400, 200);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Display Grid Lines in TreeView\n".
" Part 2 - TreeStore");
$title->modify_font(new PangoFontDescription("Times New Roman Italic 10"));
$title->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse("#0000ff"));
$title->set_size_request(-1, 40);
$vbox->pack_start($title, 0, 0);
$vbox->pack_start(new GtkLabel(), 0, 0);
$data = array(
array ('id' => '101', 'parent' => '0', 'data' => 'data0'),
array ('id' => '102', 'parent' => '101', 'data' => 'data1'),
array ('id' => '103', 'parent' => '0', 'data' => 'data2'),
array ('id' => '104', 'parent' => '0', 'data' => 'data3'),
array ('id' => '105', 'parent' => '104', 'data' => 'data4'),
array ('id' => '106', 'parent' => '105', 'data' => 'data5')
);
display_table($vbox, $data);
$window->show_all();
Gtk::main();
function display_table($vbox, $data) {
// Set up a scroll window
$scrolled_win = new GtkScrolledWindow();
$scrolled_win->set_policy( Gtk::POLICY_AUTOMATIC,
Gtk::POLICY_AUTOMATIC);
$vbox->pack_start($scrolled_win);
// Creates the list store
if (defined("GObject::TYPE_STRING")) {
$model = new GtkTreeStore(GObject::TYPE_LONG,
GObject::TYPE_STRING, GObject::TYPE_STRING);
} else {
$model = new GtkTreeStore(Gtk::TYPE_LONG,
Gtk::TYPE_STRING, Gtk::TYPE_STRING);
}
$field_header = array('id', 'title', 'data');
// Creates the view to display the list store
$view = new GtkTreeView($model);
$scrolled_win->add($view);
// Creates the columns
for ($col=0; $col<count($field_header); ++$col) {
$cell_renderer = new GtkCellRendererText();
$column = new GtkTreeViewColumn($field_header[$col],
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Explanation We make use of the code from How to display a tree structure from array?
What's new here:
- Display grid lines for the treeview.
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