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DesktopGadget

Marc Quinton
Thursday, June 28th, 2007 at 10:30:11am MDT

<?php
 
/**
 * Author: Marc Quinton
 * Licence : LGPL
 *
 *  DesktopGadget : a small window displaying some information (a clock here) ; 
 *       - you can move this window around the screen with mouse,
 *   - window can be closed, iconified (need GtkStatusIcon to remap, but not implemented)
 *       - window position is stored in INI file (based on script filename)
 *  this is a "popup window" ; could be a Toplevel window with no decoration and with some attributes set.
 *
 * 
 *
 * see : http://gtk.php.net/manual/en/gdk.enum.windowtypehint.php
 */
 
# allways display errors during developpement.
error_reporting(E_ALL);
 
define ('DIR', dirname(__FILE__));
define ('INI', basename(__FILE__, '.php') . '.ini' );
 
class Config {
 
        protected $data;
        protected $changed;
        protected $auto_save;
        protected $file;
        protected $defaults;
 
        public function __construct($defaults=null, $file=INI){
                $this->data = array();
 
                if($file == null)
                        $this->file = $this->get_default_file();
                else
                        $this->file = $file;
 
                $this->set_defaults($defaults);
                $this->load();
                $this->changed = false;
                $this->auto_save = true;
        }
 
        public function __destruct(){
                if($this->changed){
                        $this->save();
                }
        }
 
        public function __get($name){
                return $this->data[$name];
        }
 
        public function __set($name, $value){
                # echo "Config::set($name=$value)\n";
                if(isset($this->data[$name])){
                        if($this->data[$name] != $value){
                                $this->data[$name] = $value;
                                $this->changed = true;
                        }
                } else{
                        $this->data[$name] = $value;
                        $this->changed = true;
                }
        }
 
        public function __isset($name){
                return isset($this->data[$name]);
        }
 
        public function __unset($name){
                unset($this->data[$name]);
        }
 
        public function keys(){
                return array_keys($this->data);
        }
 
        public function save(){
                $bool = file_put_contents($this->file(), serialize($this->data));
                if($bool === false)
                        throw new Exception('error writing file ' . $this->file());
                $this->changed = false;
                return $bool;
        }
 
        public function load(){
                if(file_exists($this->file())){
                        $this->data = unserialize(file_get_contents($this->file()));
                        return true;
                }
                return false;
        }
 
        protected function get_default_file(){
                return basename(__FILE__, '.php') . '.ini' ;
        }
 
        protected function set_defaults($defaults){
                $this->data = $defaults;
        }
 
        protected function file(){
                return $this->file;
        }
}
 
class Frame extends GtkEventBox{
 
        protected $container;
 
        public function __construct($border_color='#aaa', $background='#EEE', $border_width=1){
                parent::__construct();
                $this->set_border_width(0);
                $this->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse($border_color));
                $this->container = new GtkEventBox();
                parent::add($this->container);
                $this->container->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse($background));
                $this->container->set_border_width($border_width);
        }
 
        public function add($w){
                $this->container->add($w);
        }
}
 
class Button extends GtkEventBox{
        protected $label;
        protected $callbacks;
        
        public function __construct($label){
                parent::__construct();
 
                $this->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse('#EEE'));
                        $frame = new Frame();
                        $this->add($frame);
                                $frame->add($this->label = new GtkLabel($label));
                                $this->label->modify_font(new PangoFontDescription('Sans Bold 6'));
        
                $this->add_events(Gdk::BUTTON_PRESS_MASK);
                $this->connect('button-press-event',  array($this, 'button_press_event'));
                # $this->connect('motion-notify-event', array($this, 'motion_notify_event'));
                $this->callbacks = array();
 
                $this->set_border_width(0);
        
        }
 
        public function connect($signal, $callback){
                if($signal == 'clicked'){
                        $this->callbacks[] = $callback;
                }
                else
                        parent::connect($signal, $callback);
        }
 
        public function motion_notify_event($w, $event){
                return true;
        }
 
        public function button_press_event($selft, $event){
                foreach($this->callbacks as $callback){
                        call_user_func($callback, $event);
                }
                return true;
        }
}
 
 
class MovableWidget extends GtkEventBox{
 
        protected $clic_point;
        protected $config;
 
        public function __construct($config=null){
                parent::__construct();
 
                $this->add_events(Gdk::POINTER_MOTION_MASK|Gdk::BUTTON_PRESS_MASK);
                $this->connect('motion-notify-event', array($this, 'motion_notify_event'));
                $this->connect('button-press-event',  array($this, 'button_press_event'));
                $this->connect_simple('realize', array($this, 'on_realize'));
                $this->click_point = null;
 
                if($config == null)
                        $this->config = new Config();
                else
                        $this->config = $config;
 
                $this->set_border_width(0);
        }
 
        public function on_realize(){
                if(isset($this->config->x)){
                        $this->get_window()->move($this->config->x, $this->config->y);
                }
        }
 
        public function button_press_event($w, $event){
                $this->click_point = array(
                        'x_root' => $event->x_root,
                        'y_root' => $event->y_root
                );
        }
 
 
        # move window location following mouse.
        public function motion_notify_event($w, $event){
 
                $state = $event->state & ~(Gdk::BUTTON_MOTION_MASK);
 
                # no button press
                if($state == 0)
                        return;
 
                $win = $this->get_window();
                $pos = $win->get_position();
 
                $x = $pos[0] + $event->x_root - $this->click_point['x_root'];
                $y = $pos[1] + $event->y_root - $this->click_point['y_root'];
 
 
                $win->move($x, $y);
                $this->config->x = $x;
                $this->config->y = $y;
 
                $this->click_point = array(
                        'x_root' => $event->x_root,
                        'y_root' => $event->y_root
                );
        }
 
        public function get_window(){
                $parent = $this;
                do{
                        $w = $parent;
                        $parent = $w->get_parent();
                } while($parent != null);
 
                return $w;
        }
}
 
class ClockWidget extends GtkLabel{
        protected $timeout_id;
        protected $format;
 
        public function __construct($format = 'd/m - H:i:s'){
                parent::__construct();
                $this->format=$format;
                $this->timeout_id = Gtk::timeout_add(1000, array($this, 'on_timeout'));
                $this->modify_font(new PangoFontDescription('Sans 7'));
                $this->on_timeout();
        }
 
        public function on_timeout(){
                $this->set_text(date($this->format));
                return true;
        }
}
 
class TitleBar extends MovableWidget{
 
        protected $hbox;
 
        public function __construct($config, $title){
                parent::__construct($config);
                $this->hbox = new GtkHbox();
 
                $this->hbox->pack_start($this->label = new GtkLabel($title));
                $this->label->modify_font(new PangoFontDescription('Sans Bold 7'));
 
                $this->hbox->pack_end($this->button_close = new Button(' x '), false, false);
                $this->hbox->pack_end($this->button_minimize = new Button(' ^ '), false, false);
                $this->hbox->pack_end($this->button_reduce = new Button(' - '), false, false);
 
                $this->button_close->connect('clicked', array($this, 'on_button_close'));
                $this->button_minimize->connect('clicked', array($this, 'on_button_minimize'));
                $this->button_reduce->connect('clicked', array($this, 'on_button_reduce'));
 
                $this->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse('#aaa'));
                $this->add($this->hbox);
                $this->show_all();
        }
 
        public function on_button_close(){
                Gtk::main_quit();
        }
        public function on_button_minimize(){
                $this->get_window()->hide_all();
        }
 
        public function on_button_reduce(){
                static $visible = true;
                $w = $this->allocation->width;
                if($visible){
                        $this->managed_widget->hide_all();
                        $h = $this->allocation->height;
                }
                else{
                        $this->managed_widget->show_all();
                        $h = $this->allocation->height +$this->managed_widget->allocation->height;
                }
                $visible = !$visible;
                $this->get_window()->resize($w, $h);
        }
 
        public function manage($widget){
                $this->managed_widget = $widget;
        }
}
 
class DesktopGadget{
 
        protected $config;
 
        protected $pannel;
        protected $title_bar;
        protected $window;
 
        function __construct($title, $type=1){
 
                $this->config = new Config();
 
                switch($type){
 
                case 1:
                        $this->window = new GtkWindow(Gtk::WINDOW_POPUP);  # display over any window
                        break;
 
                case 2:
                        $this->window = new GtkWindow();
                        $this->window->set_type_hint(Gdk::WINDOW_TYPE_HINT_DOCK);  # display over any window, below gtk panel
                        break;
 
                case 3:
                        $this->window = new GtkWindow();
                        $this->window->set_type_hint(Gdk::WINDOW_TYPE_HINT_DESKTOP);  # display on gtk desktop, under any window
                        break;
 
                case 4:
                        # raw toplevel + some attributes  ; won't move over panel or outside screen
                        $this->window = new GtkWindow();
                        $this->window->set_skip_taskbar_hint(true);
                        $this->window->set_skip_pager_hint(true);
                        $this->window->set_keep_above(true);
                        # $this->window->set_keep_below(true);
                        $this->window->stick();
                        $this->window->set_decorated(false);
                        break;
        
                case 'parameters-to-try':
                        # http://gtk.php.net/manual/en/gdk.enum.windowtypehint.php
                        $this->window->set_skip_taskbar_hint(true);
                        $this->window->set_skip_pager_hint(true);
                        $this->window->set_keep_above(true);
                        $this->window->set_keep_below(true);
                        $this->window->stick();
                        $this->window->unstick();
                        $this->window->set_decorated(false);
                        break;
 
                default:
                        throw new Exception ("un supported DesktopGadget type '$type'"); 
                }
 
                $frame = new Frame('darkgreen');
 
                        $vbox = new GtkVbox();
                        $frame->add($vbox);
 
                                $this->title_bar = new TitleBar($this->config, $title);
                                $vbox->pack_start($this->title_bar, false, false);
 
                                $this->panel = new GtkVbox();
                                $vbox->pack_end($this->panel, true, true);
                                $this->title_bar->manage($this->panel);
                
 
                # settings
                # $this->window->set_size_request( 100, -1 );  # set window size
                # place window to screen center ; will be overriden at realize with saved (x,y) from config
                $this->window->set_position(Gtk::WIN_POS_CENTER); 
                # connection tree
                $this->window->add($frame);
 
                # terminate
                $this->window->show_all();
        }
 
        # override composite methods : add, pack_start, pack_end;
        # now add child widget to $this->pannel (a GtkVbox widget)
        public function add($w){
                $this->pack_start($w);
        }
 
        public function pack_start($w, $expand = true, $fill = true, $padding=0){
                $this->panel->pack_start($w, $expand, $fill, $padding);
                $this->window->show_all();
        }
 
        public function pack_end($w, $expand = true, $fill = true, $padding=0){
                $this->panel->pack_end($w, $expand, $fill, $padding);
                $this->window->show_all();
        }
}
 
 
$gadget = new DesktopGadget($title='Desktop Gadget');
$gadget->pack_start($clock = new ClockWidget());
 
Gtk::main();
 
?>

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<?php

/**
 * Author: Marc Quinton
 * Licence : LGPL
 *
 *  DesktopGadget : a small window displaying some information (a clock here) ; 
 *	 - you can move this window around the screen with mouse,
 *   - window can be closed, iconified (need GtkStatusIcon to remap, but not implemented)
 *	 - window position is stored in INI file (based on script filename)
 *  this is a "popup window" ; could be a Toplevel window with no decoration and with some attributes set.
 *
 * 
 *
 * see : http://gtk.php.net/manual/en/gdk.enum.windowtypehint.php
 */

# allways display errors during developpement.
error_reporting(E_ALL);

define ('DIR', dirname(__FILE__));
define ('INI', basename(__FILE__, '.php') . '.ini' );

class Config {

protected $data;
	protected $changed;
	protected $auto_save;
	protected $file;
	protected $defaults;

public function __construct($defaults=null, $file=INI){
		$this->data = array();

if($file == null)
			$this->file = $this->get_default_file();
		else
			$this->file = $file;

$this->set_defaults($defaults);
		$this->load();
		$this->changed = false;
		$this->auto_save = true;
	}

public function __destruct(){
		if($this->changed){
			$this->save();
		}
	}

public function __get($name){
		return $this->data[$name];
	}

public function __set($name, $value){
		# echo "Config::set($name=$value)\n";
		if(isset($this->data[$name])){
			if($this->data[$name] != $value){
				$this->data[$name] = $value;
				$this->changed = true;
			}
		} else{
			$this->data[$name] = $value;
			$this->changed = true;
		}
	}

public function __isset($name){
		return isset($this->data[$name]);
	}

public function __unset($name){
		unset($this->data[$name]);
	}

public function keys(){
		return array_keys($this->data);
	}

public function save(){
		$bool = file_put_contents($this->file(), serialize($this->data));
		if($bool === false)
			throw new Exception('error writing file ' . $this->file());
		$this->changed = false;
		return $bool;
	}

public function load(){
		if(file_exists($this->file())){
			$this->data = unserialize(file_get_contents($this->file()));
			return true;
		}
		return false;
	}

protected function get_default_file(){
		return basename(__FILE__, '.php') . '.ini' ;
	}

protected function set_defaults($defaults){
		$this->data = $defaults;
	}

protected function file(){
		return $this->file;
	}
}

class Frame extends GtkEventBox{

protected $container;

public function __construct($border_color='#aaa', $background='#EEE', $border_width=1){
		parent::__construct();
		$this->set_border_width(0);
		$this->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse($border_color));
		$this->container = new GtkEventBox();
		parent::add($this->container);
		$this->container->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse($background));
		$this->container->set_border_width($border_width);
	}

public function add($w){
		$this->container->add($w);
	}
}

class Button extends GtkEventBox{
	protected $label;
	protected $callbacks;
	
	public function __construct($label){
		parent::__construct();

$this->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse('#EEE'));
			$frame = new Frame();
			$this->add($frame);
				$frame->add($this->label = new GtkLabel($label));
				$this->label->modify_font(new PangoFontDescription('Sans Bold 6'));
	
		$this->add_events(Gdk::BUTTON_PRESS_MASK);
		$this->connect('button-press-event',  array($this, 'button_press_event'));
		# $this->connect('motion-notify-event', array($this, 'motion_notify_event'));
		$this->callbacks = array();

$this->set_border_width(0);
	
	}

public function connect($signal, $callback){
		if($signal == 'clicked'){
			$this->callbacks[] = $callback;
		}
		else
			parent::connect($signal, $callback);
	}

public function motion_notify_event($w, $event){
		return true;
	}

public function button_press_event($selft, $event){
		foreach($this->callbacks as $callback){
			call_user_func($callback, $event);
		}
		return true;
	}
}

class MovableWidget extends GtkEventBox{

protected $clic_point;
	protected $config;

public function __construct($config=null){
		parent::__construct();

$this->add_events(Gdk::POINTER_MOTION_MASK|Gdk::BUTTON_PRESS_MASK);
		$this->connect('motion-notify-event', array($this, 'motion_notify_event'));
		$this->connect('button-press-event',  array($this, 'button_press_event'));
		$this->connect_simple('realize', array($this, 'on_realize'));
		$this->click_point = null;

if($config == null)
			$this->config = new Config();
		else
			$this->config = $config;

$this->set_border_width(0);
	}

public function on_realize(){
		if(isset($this->config->x)){
			$this->get_window()->move($this->config->x, $this->config->y);
		}
	}

public function button_press_event($w, $event){
		$this->click_point = array(
			'x_root' => $event->x_root,
			'y_root' => $event->y_root
		);
	}

# move window location following mouse.
	public function motion_notify_event($w, $event){

$state = $event->state & ~(Gdk::BUTTON_MOTION_MASK);

# no button press
		if($state == 0)
			return;

$win = $this->get_window();
		$pos = $win->get_position();

$x = $pos[0] + $event->x_root - $this->click_point['x_root'];
		$y = $pos[1] + $event->y_root - $this->click_point['y_root'];

$win->move($x, $y);
		$this->config->x = $x;
		$this->config->y = $y;

$this->click_point = array(
			'x_root' => $event->x_root,
			'y_root' => $event->y_root
		);
	}

public function get_window(){
		$parent = $this;
		do{
			$w = $parent;
			$parent = $w->get_parent();
		} while($parent != null);

return $w;
	}
}

class ClockWidget extends GtkLabel{
	protected $timeout_id;
	protected $format;

public function __construct($format = 'd/m - H:i:s'){
		parent::__construct();
		$this->format=$format;
		$this->timeout_id = Gtk::timeout_add(1000, array($this, 'on_timeout'));
		$this->modify_font(new PangoFontDescription('Sans 7'));
		$this->on_timeout();
	}

public function on_timeout(){
		$this->set_text(date($this->format));
		return true;
	}
}

class TitleBar extends MovableWidget{

protected $hbox;

public function __construct($config, $title){
		parent::__construct($config);
		$this->hbox = new GtkHbox();

$this->hbox->pack_start($this->label = new GtkLabel($title));
		$this->label->modify_font(new PangoFontDescription('Sans Bold 7'));

$this->hbox->pack_end($this->button_close = new Button(' x '), false, false);
		$this->hbox->pack_end($this->button_minimize = new Button(' ^ '), false, false);
		$this->hbox->pack_end($this->button_reduce = new Button(' - '), false, false);

$this->button_close->connect('clicked', array($this, 'on_button_close'));
		$this->button_minimize->connect('clicked', array($this, 'on_button_minimize'));
		$this->button_reduce->connect('clicked', array($this, 'on_button_reduce'));

$this->modify_bg(Gtk::STATE_NORMAL, GdkColor::parse('#aaa'));
		$this->add($this->hbox);
		$this->show_all();
	}

public function on_button_close(){
		Gtk::main_quit();
	}
	public function on_button_minimize(){
		$this->get_window()->hide_all();
	}

public function on_button_reduce(){
		static $visible = true;
		$w = $this->allocation->width;
		if($visible){
			$this->managed_widget->hide_all();
			$h = $this->allocation->height;
		}
		else{
			$this->managed_widget->show_all();
			$h = $this->allocation->height +$this->managed_widget->allocation->height;
		}
		$visible = !$visible;
		$this->get_window()->resize($w, $h);
	}

public function manage($widget){
		$this->managed_widget = $widget;
	}
}

class DesktopGadget{

protected $config;

protected $pannel;
	protected $title_bar;
	protected $window;

function __construct($title, $type=1){

$this->config = new Config();

switch($type){

case 1:
			$this->window = new GtkWindow(Gtk::WINDOW_POPUP);  # display over any window
			break;

case 2:
			$this->window = new GtkWindow();
			$this->window->set_type_hint(Gdk::WINDOW_TYPE_HINT_DOCK);  # display over any window, below gtk panel
			break;

case 3:
			$this->window = new GtkWindow();
			$this->window->set_type_hint(Gdk::WINDOW_TYPE_HINT_DESKTOP);  # display on gtk desktop, under any window
			break;

case 4:
			# raw toplevel + some attributes  ; won't move over panel or outside screen
			$this->window = new GtkWindow();
			$this->window->set_skip_taskbar_hint(true);
			$this->window->set_skip_pager_hint(true);
			$this->window->set_keep_above(true);
			# $this->window->set_keep_below(true);
			$this->window->stick();
			$this->window->set_decorated(false);
			break;
	
		case 'parameters-to-try':
			# http://gtk.php.net/manual/en/gdk.enum.windowtypehint.php
			$this->window->set_skip_taskbar_hint(true);
			$this->window->set_skip_pager_hint(true);
			$this->window->set_keep_above(true);
			$this->window->set_keep_below(true);
			$this->window->stick();
			$this->window->unstick();
			$this->window->set_decorated(false);
			break;

default:
			throw new Exception ("un supported DesktopGadget type '$type'"); 
		}

$frame = new Frame('darkgreen');

$vbox = new GtkVbox();
			$frame->add($vbox);

$this->title_bar = new TitleBar($this->config, $title);
				$vbox->pack_start($this->title_bar, false, false);

$this->panel = new GtkVbox();
				$vbox->pack_end($this->panel, true, true);
				$this->title_bar->manage($this->panel);

# settings
		# $this->window->set_size_request( 100, -1 );  # set window size
		# place window to screen center ; will be overriden at realize with saved (x,y) from config
		$this->window->set_position(Gtk::WIN_POS_CENTER); 
		# connection tree
		$this->window->add($frame);

# terminate
		$this->window->show_all();
	}

# override composite methods : add, pack_start, pack_end;
	# now add child widget to $this->pannel (a GtkVbox widget)
	public function add($w){
		$this->pack_start($w);
	}

public function pack_start($w, $expand = true, $fill = true, $padding=0){
		$this->panel->pack_start($w, $expand, $fill, $padding);
		$this->window->show_all();
	}

public function pack_end($w, $expand = true, $fill = true, $padding=0){
		$this->panel->pack_end($w, $expand, $fill, $padding);
		$this->window->show_all();
	}
}

$gadget = new DesktopGadget($title='Desktop Gadget');
$gadget->pack_start($clock = new ClockWidget());

Gtk::main();

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