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Problem You would like to display gif, jpg or png images in a GtkTreeView as shown below:
Solution
Sample Code The following image files are required by the sample code below. Please save a copy of the image files and put them in the same directory where you store the sample code.
 | ball_red.png |
 | ball_green.png |
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| <?php
$window = new GtkWindow();
$window->set_size_request(400, 280);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Display gif, jpg or png images in GtkTreeView - Part 1");
$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(
'Red = below safety stock level (qty<10)'), 0, 0);
$vbox->pack_start(new GtkLabel(
'Green = above safety stock level (qty>=10)'), 0, 0);
$vbox->pack_start(new GtkLabel(), 0, 0);
// the 2D table
$data = array(
array('row0', 'item 42', 2, 3.1),
array('row1', 'item 36', 20, 6.21),
array('row2', 'item 21', 8, 9.36),
array('row3', 'item 10', 11, 12.4),
array('row4', 'item 7', 5, 15.5),
array('row5', 'item 4', 17, 18.6),
array('row6', 'item 3', 20, 21.73));
display_table ($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 GtkListStore(GObject::TYPE_STRING, GObject::TYPE_STRING,
GObject::TYPE_LONG, GObject::TYPE_DOUBLE);
} else {
$model = new GtkListStore(Gtk::TYPE_STRING, Gtk::TYPE_STRING,
Gtk::TYPE_LONG, Gtk::TYPE_DOUBLE);
}
$field_header = array('Row #', 'Description', 'Qty', 'Price', 'Status');
$field_justification = array(0.0, 0.0, 0.5, 1.0, .5);
// 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); ++$col) {
if ($field_header[$col] == 'Status') { // note 1
$cell_renderer = new GtkCellRendererPixbuf();
$column = new GtkTreeViewColumn();
$column->pack_start($cell_renderer);
$column->set_cell_data_func($cell_renderer, "format_col", $col);
} else {
$cell_renderer = new GtkCellRendererText();
$cell_renderer->set_property("xalign", $field_justification[$col]);
$column = new GtkTreeViewColumn($field_header[$col],
$cell_renderer, 'text', $col);
$column->set_alignment($field_justification[$col]);
$column->set_sort_column_id($col);
}
// set the header font and color
$label = new GtkLabel($field_header[$col]);
$label->modify_font(new PangoFontDescription("Arial Bold"));
$label->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse("#0000FF"));
$column->set_widget($label);
$label->show();
// setup self-defined function to display alternate row color
$column->set_cell_data_func($cell_renderer, "format_col", $col);
$view->append_column($column);
}
// pupulates the data
for ($row=0; $row<count($data); ++$row) {
$values = array();
for ($col=0; $col<count($data[$row]); ++$col) {
$values[] = $data[$row][$col];
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Explanation The above sample code is based on How to display a 2D array in GtkTreeView - Part 5 - get user selection?.
What's new here:
- Set up the GtkCellRendererPixbuf.
- Load the red ball for $qty<10. Load the green ball for $qty≥10. Then display the image with
$cell->set_property('pixbuf', $pixbuf)
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User reviews Average user ratings:  5.0 (from 1 user) Note: You have to be a registered member to leave a comment. Free registration here. |
February 25, 2008 6:26am
Hei!! Thanks people, this article help me to solve a problem im my work. Thanks a lot, your site is the best one of PHP-GTK2 in World. Thanks again.