Problem
We have set up three radio buttons in a treeview in How to set up radio buttons in GtkTreeView using GtkCellRendererToggle - Part 2 - three radio buttons?
In this Part 3, we will process the user selections as shown below:
Solution
- First use the technique as outlined in Part 2 to set up the three radio buttons.
- To get the user selection of the radio buttons, we need to manually go through each of the radio button to test its status and find out which is the selected one.
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 61 62 63 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 94 95 96 97 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 129 130 131 132 133 134 136 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | <?php $window = new GtkWindow(); $window->set_size_request(400, 230); $window->connect_simple('destroy', array('Gtk','main_quit')); $window->add($vbox = new GtkVBox()); // display title $title = new GtkLabel("Set up radio buttons in GtkTreeView\n". " Part 3 (process selections)"); $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); $vbox->pack_start($hbox = new GtkHBox, 0, 0); $button = new GtkButton('Process Rows'); $hbox->pack_start(new GtkLabel( 'Press the button to process all rows '), 0, 0); $hbox->pack_start($button, 0, 0); // the 2D table $data = array( array('row0', 'item 1', 2, 3.1), array('row1', 'item 4', 5, 6.21), array('row2', 'item 7', 8, 9.36), array('row3', 'item 10', 11, 12.4), array('row4', 'item 21', 14, 15.5), array('row5', 'item 36', 17, 18.6), array('row6', 'item 42', 20, 21.73)); $model = display_table($vbox, $data); $button->connect('clicked', 'on_clicked', $model); $window->show_all(); Gtk::main(); function display_table($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, GObject::TYPE_BOOLEAN, GObject::TYPE_BOOLEAN, GObject::TYPE_BOOLEAN); } else { $model = new GtkListStore(Gtk::TYPE_STRING, Gtk::TYPE_STRING, Gtk::TYPE_LONG, Gtk::TYPE_DOUBLE, Gtk::TYPE_BOOLEAN, Gtk::TYPE_BOOLEAN, Gtk::TYPE_BOOLEAN); } $field_header = array('Row #', 'Description', 'Qty', 'Price'); // Creates the view to display the list store $view = new GtkTreeView($model); $scrolled_win->add($view); // Creates the selection column // Creates the rest of the column for ($col=0; $col<count($field_header); ++$col) { $cell_renderer = new GtkCellRendererText(); $column = new GtkTreeViewColumn($field_header[$col], $cell_renderer, 'text', $col); $column->set_cell_data_func($cell_renderer, "format_col", $col); if ($col==1) $column->set_expand(true); $view->append_column($column); } setup_radio($view, 'A', 4); setup_radio($view, 'B', 5); setup_radio($view, 'C', 6); // pupulates the data for ($row=0; $row<count($data); ++$row) { $values = array(); for ($col=0; $col<count($data[$row]); ++$col) { $values[] = $data[$row][$col]; } $values = array_merge($values, array(0, 0, 0)); $model->append($values); } $selection = $view->get_selection(); $selection->set_mode(Gtk::SELECTION_NONE); return $model; } // setup radio buttons function setup_radio($view, $label, $col_num) { $column = new GtkTreeViewColumn(); $view->append_column($column); $cell_renderer1 = new GtkCellRendererText(); $cell_renderer1->set_property('text', $label); $column->pack_start($cell_renderer1, true); $column->set_cell_data_func($cell_renderer1, "format_col", $col_num); $cell_renderer2 = new GtkCellRendererToggle(); $cell_renderer2->set_property('activatable', true); $cell_renderer2->set_radio(true); $cell_renderer2->connect('toggled', 'on_toggle', $view, $col_num); $column->pack_start($cell_renderer2, true); $column->set_attributes($cell_renderer2, 'active', $col_num); $column->set_cell_data_func($cell_renderer2, "format_col", $col_num); } // toggle the selection box function on_toggle($renderer, $row, $view, $col_num) { $model = $view->get_model(); $iter = $model->get_iter($row); // get the iter for ($i=4; $i<=6; ++$i) { if ($i==$col_num) { $model->set($iter, $i, true); } else { $model->set($iter, $i, false); } } } // display alternate row color function format_col($column, $cell, $model, $iter, $col_num) { $path = $model->get_path($iter); $row_num = $path[0]; if ($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', $row_color); } // process user selection function on_clicked($button, $model) { $num_rows = $model->iter_n_children(NULL); for ($i=0; $i<$num_rows; ++$i) { $iter = $model->get_iter($i); $row_id = $model->get_value($iter, 0); $row_desc = $model->get_value($iter, 1); $qty = $model->get_value($iter, 2); $price = $model->get_value($iter, 3); $option_A = $model->get_value($iter, 4); // note 1 $option_B = $model->get_value($iter, 5); // note 1 $option_C = $model->get_value($iter, 6); // note 1 $option = ''; if ($option_A) $option = 'A'; // note 2 elseif ($option_B) $option = 'B'; // note 2 elseif ($option_C) $option = 'C'; // note 2 echo "You have selected: $row_id ($row_desc) \n". "qty=$qty (price=$price) option=$option\n"; // your action here } } ?> |
Output
As shown above.
Explanation
We make use of the code in How to set up radio buttons in GtkTreeView using GtkCellRendererToggle - Part 2 - three radio buttons?
What's new here:
- Find out the status of each of the radio button.
- Place the selected one in the variable $option.
Related Articles
- How to set up radio buttons in GtkTreeView using GtkCellRendererToggle - Part 1 - one radio button?
- How to set up radio buttons in GtkTreeView using GtkCellRendererToggle - Part 2 - three radio buttons?
- How to set up radio buttons in GtkTreeView using GtkCellRendererToggle - Part 4 - all radio buttons in one column?
- How to use GtkCellRendererToggle - Part 1 - setup?
- How to use GtkCellRendererToggle - Part 2 - process selection?
- How to display gif or jpg images in GtkTreeView - Part 2?
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