<?php

error_reporting(E_ALL);

/**
 * author : Marc Quinton / may 2007.
 * licence : LGPL.
 *
 * some classes to make php-gtk work as glade managing widget selection
 *
 */


class EventBox extends GtkEventBox{
	protected $widget;
	protected $_name;
	protected $gc;

	public function __construct($widget=null, $name=''){
		parent::__construct();
		$this->widget = $widget;
		$this->_name = $name;
		$this->gc = null;

		if($widget != null)
			$this->add($this->widget);

		$this->show_all();
	}

	public function draw_handle(){
		
		if($this->gc == null){
			$this->gc = new GdkGC($this->window);
			$this->gc->set_rgb_fg_color(new GdkColor(0,0,0));
		}

		$x = 0;
		$y = 0;
		$w = $this->allocation->width -1;
		$h = $this->allocation->height -1;

		$this->window->draw_rectangle($this->gc, $filled=false, $x, $y, $w, $h);

		$x = 0;
		$y = 0;
		$w = 10;
		$h = 10;

		$this->window->draw_rectangle($this->gc, $filled=true, $x, $y, $w, $h);

		$x = $this->allocation->width - $w;
		$y = 0;
		$this->window->draw_rectangle($this->gc, $filled=true, $x, $y, $w, $h);

		$x = $this->allocation->width - $w;
		$y = $this->allocation->height - $w;
		$this->window->draw_rectangle($this->gc, $filled=true, $x, $y, $w, $h);

		$x = 0;
		$y = $this->allocation->height - $w;
		$this->window->draw_rectangle($this->gc, $filled=true, $x, $y, $w, $h);

		return true;
	}

	public function get_widget(){
		return $this->widget;
	}
}

class HBox extends EventBox{
	protected $num_childs;

	public function __construct($childs = 3){
		parent::__construct();
		$this->num_childs = $childs;
		$this->widget = new Hbox();
		$this->add($this->widget);
		$this->show_all();
	}
}


class Manager extends GtkWindow{

	protected $widgets;
	protected $selected_widget;

	public function __construct(){
		parent::__construct();
		$this->connect_after('expose-event', array($this, 'on_expose'));

		$this->widgets = array();
		$this->selected = null;
	}

	public function manage_reparent($widget){

		$this->widgets[] = $box = new EventBox();

		$this->do_reparent($widget, $box);

		if(is_a($widget, 'GtkLabel')){
			# register button clicks
			$box->add_events(Gdk::BUTTON_PRESS_MASK);
			$box->connect_simple('button-press-event', array($this, 'on_button_press'), $box);
		}
		elseif(is_a($widget, 'GtkButton')){
			$widget->connect_simple('clicked', array($this, 'on_button_click'), $box);
			$widget->add_events(Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK);
			$widget->connect_simple_after('leave-notify-event', array($this, 'on_button_enter_leave'), $box);
			$widget->connect_simple_after('enter-notify-event', array($this, 'on_button_enter_leave'), $box);
		}
		elseif(is_a($widget, 'GtkVbox')|| is_a($widget, 'GtkFrame')){
			echo "widget composite\n";
			$box->add_events(Gdk::BUTTON_PRESS_MASK);
			$box->connect_simple_after('button-press-event', array($this, 'on_button_press'), $box);
		}
	}

	public function do_reparent($widget, $box){
		# reparent $widget
		$parent = $widget->get_parent();

		if(is_a($parent, 'GtkBox')){

			list($expand, $fill, $padding, $pack_type) = $packing_info = $parent->query_child_packing($widget);

			if($pack_type == Gtk::PACK_START)
				$parent->pack_start($box, $expand, $fill, $padding);
			else
				$parent->pack_end($box, $expand, $fill, $padding);
			$widget->reparent($box);

		} else {
			$widget->reparent($box);
			$parent->add($box);
		}
	}

	public function manage($event_box){

		if(!is_a($event_box, 'EventBox')){
			trigger_error('widget should be an EventBox class');
			return false;
		}

		$this->widgets[] = $event_box;


		if(is_a($event_box->get_widget(), 'GtkLabel')){
			# register button clicks
			$event_box->add_events(Gdk::BUTTON_PRESS_MASK);
			$event_box->connect_simple('button-press-event', array($this, 'on_button_press'), $event_box);
		}
		elseif(is_a($event_box->get_widget(), 'GtkButton')){
			$event_box->get_widget()->connect_simple('clicked', array($this, 'on_button_click'), $event_box);
			$event_box->add_events(Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK);
			$event_box->connect_simple_after('leave-notify-event', array($this, 'on_button_enter_leave'), $event_box);
			$event_box->connect_simple_after('enter-notify-event', array($this, 'on_button_enter_leave'), $event_box);
		}
		elseif(is_a($event_box->get_widget(), 'GtkEntry')){
			echo "manage gtk-entry\n";
			$event_box->get_widget()->add_events(Gdk::BUTTON_PRESS_MASK);
			$event_box->get_widget()->connect_after('button-press-event', array($this, 'on_entry_button_press'), $event_box);
		}
	}

	public function on_expose(){
		if($this->selected_widget != null)
			$this->show_selection();
	}

	public function on_button_click($widget){
		$this->selected_widget = $widget;
		$this->queue_draw();
	}

	public function on_button_press($widget){
		$this->selected_widget = $widget;
		$this->queue_draw();
	}

	public function on_button_enter_leave($widget){
		$this->show_selection();
	}

	protected function show_selection(){
		if($this->selected_widget != null){
			# $this->selected_widget->draw_handle();
			Gtk::timeout_add(3, array($this, 'on_timeout_show_selection'));
		}
	}

	public function on_timeout_show_selection(){
		$this->selected_widget->draw_handle();
		return false;
	}
}

$manager = new Manager();
$manager->connect_simple('destroy', array('Gtk', 'main_quit'));
$manager->set_position(Gtk::WIN_POS_CENTER); # place window to screen center

$vbox = new GtkVbox();
$manager->add($vbox);

$hbox = new GtkHbox();
$vbox->pack_start($hbox, false, false);
# $hbox->set_border_width(2);
# $manager->manage($hbox);

/*
$hbox->pack_start($w = new EventBox($w2 = new GtkLabel('a label'))); 
	$manager->manage($w);

$hbox->pack_start($w = new EventBox($w2 = new GtkButton('OK'))); 
	$manager->manage($w);

$hbox->pack_start($w = new EventBox($w2 = new GtkLabel('other label'))); 
	$manager->manage($w);

$hbox->pack_start($w = new EventBox($w2 = new GtkButton('OK2'))); 
	$manager->manage($w);

$hbox->pack_start($w = new EventBox($w2 = new GtkEntry('text-entry'))); 
	$manager->manage($w);

$table = new GtkTable();
	$vbox->pack_start($table, false, false);
	$table->set_row_spacings(10);
	$table->set_col_spacings(10);
	$manager->manage($table);

	$x = 0 ; $y = 0;
	$table->attach(
		$w = new EventBox($w2 = new GtkLabel('label1')),
		$x, $x+1, $y, $y+1
	);
	$manager->manage($w);

	$table->attach(
		$w = new EventBox($w2 = new GtkButton('xxx')),
		$x+1, $x+2, $y, $y+1
	);
	$manager->manage($w);

	$y++;
	$table->attach(
		$w = new EventBox($w2 = new GtkLabel('label2')),
		$x, $x+1, $y, $y+1
	);
	$manager->manage($w);

	$table->attach(
		$w = new EventBox($w2 = new GtkButton('xxx')),
		$x+1, $x+2, $y, $y+1
	);
	$manager->manage($w);
*/


$hbox->pack_start($w = new GtkLabel('a label')); 
	$manager->manage_reparent($w);

$hbox->pack_start($w = new GtkButton('OK')); 
	$manager->manage_reparent($w);

$hbox->pack_start($vbox2 = new GtkVbox(true)); 
	# $manager->manage_reparent($vbox2);

		$vbox2->pack_start($w = new GtkButton('1')); $manager->manage_reparent($w);
		$vbox2->pack_start($w = new GtkButton('2')); $manager->manage_reparent($w);
		$vbox2->pack_end($w = new GtkFrame('frame')); $manager->manage_reparent($w);
			$w->add($w2 = new GtkButton('4')); $manager->manage_reparent($w2);
		$vbox2->pack_start($w = new GtkButton('3')); $manager->manage_reparent($w);
		$vbox2->pack_start($w = new GtkVbox); $manager->manage_reparent($w);


/*
$hbox->pack_start($w = new GtkLabel('second label')); 
	$manager->manage_reparent($w);

$hbox->pack_start($w = new GtkButton('OK2')); 
	$manager->manage_reparent($w);

*/

$manager->show_all();

Gtk::main();

?>