Problem
Suppose you have set up some cells of a GtkTreeView with multiple lines as outlined in How to have multiple lines in a cell of GtkTreeView - Part 1?.
By default, PHP-GTK2 will autofit the height of each row based on the number of lines of each cell as shown below:
Suppose you would like to have the same height for all rows in the treeview as shown below:
Solution
- To set the height of each row, use the method GtkCellRenderer::set_fixed_size(row, height).
Sample Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 62 63 64 65 67 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 97 98 99 100 101 102 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | <?php $window = new GtkWindow(); $window->set_size_request(400, 330); $window->connect_simple('destroy', array('Gtk','main_quit')); $window->add($vbox = new GtkVBox()); // display title $title = new GtkLabel(" Have the same height for all rows in a treeview\n". "Part 1 - by using GtkCellRenderer::set_fixed_size()"); $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); // the 2D table $data = array( array('row0', "item 42\nline0.2\nline0.3", 2, 3.1), array('row1', "item 36\nline1.2", 20, 6.21), array('row2', 'item 21', 8, 9.36), array('row3', 'item 10', 11, 12.4), array('row4', 'item 7', 5, 15.5), array('row5', 'item 4', 17, 18.6), array('row6', 'item 3', 20, 21.73)); display_table($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'); $field_justification = array(0.0, 0.0, 0.5, 1.0); $field_size = array(60, 160, 60, 0); // 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(); $cell_renderer->set_property('xalign', $field_justification[$col]); $cell_renderer->set_property('yalign', 0); if ($field_size[$col]>0) $cell_renderer->set_fixed_size($field_size[$col], 60); // note 1 $column = new GtkTreeViewColumn($field_header[$col], $cell_renderer, 'text', $col); $column->set_alignment($field_justification[$col]); $column->set_resizable(true); // 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]; } $model->append($values); } $selection = $view->get_selection(); $selection->connect('changed', 'on_selection'); } // self-defined function to format the price column function format_col($column, $cell, $model, $iter, $col_num) { $path = $model->get_path($iter); // get the current path $row_num = $path[0]; // get the row number if ($col_num==3) { $amt = $model->get_value($iter, 3); $cell->set_property('text', '$'.number_format($amt,2)); } $row_color = ($row_num%2==1) ? '#dddddd' : '#ffffff'; $cell->set_property('cell-background', $row_color); } // the function that is called when user selects a row function on_selection($selection) { list($model, $iter) = $selection->get_selected(); $desc = $model->get_value($iter, 1); $qty = $model->get_value($iter, 2); $price = $model->get_value($iter, 3); print "You have selected $desc: $qty ($price)\n"; } ?> |
Output
As shown above.Explanation
We make use of the code from How to display a 2D array in GtkTreeView - Part 5 - get user selection?
What's new here:
- Set all rows to height=60 pixels.
Related Links
- How to have the same height for all rows in GtkTreeView - Part 2 - set_fixed_height_from_font?
- How to have multiple lines in a cell of GtkTreeView - Part 2 - valign top?
- How to have multiple lines in a cell of GtkTreeView - Part 1?
- How to display a 2D array in GtkTreeView - Part 5 - get user selection?
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