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by kksou
Sample Code 52: How to let user enter date with a popup calendar - Part 1? |
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Written by kksou
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Tuesday, 10 October 2006 |
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Problem You want to display grouped radio buttons as shown below:
Solution
Sample Code Note: If you have installed php-gtk2 using Gnope Installer on Windows, and if running the sample code below gives you warning that the Symbolic names for keys (e.g. Gdk::KEY_Return) is not defined, you might want to update your php-gtk2 with the latest php-gtk2.dll available here. Simply download the php-gtk2.dll and replace the copy in the folder php-gtk2\ext. The latest compilation has put in the Symbolic names for keys listed here.
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| <?php
$window = new GtkWindow();
$window->set_size_request(400, 150);
$window->set_position(Gtk::WIN_POS_CENTER_ALWAYS);
$window->connect_simple('destroy', array('Gtk','main_quit'));
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Press F1 to choose a date");
$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);
$hbox = new GtkHBox();
$vbox->pack_start($hbox, 0, 0);
$hbox->pack_start(new GtkLabel("Select Date: "), 0, 0);
$hbox->pack_start($entry = new GtkEntry(), 0, 0);
// let us know when user press F1 key
$entry->connect('key-press-event', 'on_keypress', $entry);
function on_keypress($widget, $event, $entry) {
// we only want F1. return all the rest
if ($event->keyval!=Gdk::KEY_F1) return false;
$selected_date = get_date(); // note 1
$entry->set_text($selected_date);
$entry->grab_focus();
}
function get_date() { // note 1
$getdate_dialog = new GetDate();
$date = $getdate_dialog->calendar->get_date();
$selected_date = 1+$date[1].'/'.$date[2].'/'.$date[0]; // note 2
return $selected_date;
}
class GetDate{ // note 1
var $calendar;
function GetDate() {
$dialog = new GtkDialog('Get Date', null, Gtk::DIALOG_MODAL);
$dialog->set_position(Gtk::WIN_POS_CENTER_ALWAYS);
$top_area = $dialog->vbox;
setlocale(LC_ALL, 'english');
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- Note that this is only 70% of the sample code. You have to be a registered member to see the entire sample code. Please login or register.
- Registration is free and immediate.
- Have some doubt about the registration? Please read this forum article.
Explanation
- We created the function
get_date() so that one can allow user to enter date with a popup calendar using a one-liner: $date=get_date().
- Note that month returned is zero-basd, i.e. from 0 to 11. To get the "real" month, we have to add a 1.
Note
In this example, the user has to click on a date, and then click the OK button - a total of 2 clicks to select a date. We will improve on this in the next article.
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September 19, 2008 10:01am