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PHP Source format, 5 years 1 month old, and 515 hits.

Paste Description for mq

The php-gtk2 scribble demo ; interesting example but this one is very far more rich : http://www.php-gtk.eu/code-snippets/extending-gtkdrawingarea-to-draw-animated-graphs

mq
Wednesday, November 29th, 2006 at 1:49:21pm MST 

  1. <?php
  2. /**
  3. *   Scribble demo - simple painting with your mouse
  4. */
  5.  
  6. class Scribble extends GtkWindow
  7. {
  8.     protected $size_group = null;
  9.     protected $pixmap = null;
  10.  
  11.  
  12.     function __construct($parent = null)
  13.     {
  14.         parent::__construct();
  15.  
  16.         if (@$GLOBALS['framework']) {
  17.             return;
  18.         }
  19.  
  20.         if ($parent)
  21.             $this->set_screen($parent->get_screen());
  22.         else
  23.             $this->connect_simple('destroy', array('gtk', 'main_quit'));
  24.  
  25.         $this->set_title(__CLASS__);
  26.         $this->set_position(Gtk::WIN_POS_CENTER);
  27.         $this->set_default_size(-1, -1);
  28.         $this->set_border_width(8);
  29.  
  30.         $this->add($this->__create_box());
  31.         $this->show_all();
  32.     }//function __construct($parent = null)
  33.  
  34.  
  35.  
  36.     function __create_box()
  37.     {
  38.         $vbox = new GtkVBox();
  39.         $vbox->show();
  40.  
  41.         $drawing_area = new GtkDrawingArea();
  42.         $drawing_area->set_size_request(300, 300);
  43.         $vbox->pack_start($drawing_area);
  44. //        $drawing_area->realize();
  45.  
  46.         $drawing_area->connect('expose_event'       , array($this, 'expose_event'));
  47.         $drawing_area->connect('configure_event'    , array($this, 'configure_event'));
  48.  
  49.         $drawing_area->connect('motion_notify_event', array($this, 'motion_notify_event'));
  50.         $drawing_area->connect('button_press_event' , array($this, 'button_press_event'));
  51.  
  52.         $drawing_area->set_events(Gdk::EXPOSURE_MASK
  53.                                 | Gdk::LEAVE_NOTIFY_MASK
  54.                                 | Gdk::BUTTON_PRESS_MASK
  55.                                 | Gdk::POINTER_MOTION_MASK
  56.                                 | Gdk::POINTER_MOTION_HINT_MASK);
  57.  
  58.         return $vbox;
  59.     }//function __create_box()
  60.  
  61.  
  62.  
  63.     function configure_event($widget, $event)
  64.     {
  65.         $this->pixmap = new GdkPixmap($widget->window,
  66.                                 $widget->allocation->width,
  67.                                 $widget->allocation->height,
  68.                                 -1);
  69.         $this->pixmap->draw_rectangle($widget->style->white_gc,
  70.                             true, 0, 0,
  71.                             $widget->allocation->width,
  72.                             $widget->allocation->height);
  73.         return true;
  74.     }
  75.  
  76.  
  77.     function expose_event($widget, $event)
  78.     {
  79.         $widget->window->draw_drawable($widget->style->fg_gc[$widget->state],
  80.                         $this->pixmap,
  81.                         $event->area->x, $event->area->y,
  82.                         $event->area->x, $event->area->y,
  83.                         $event->area->width, $event->area->height);
  84.  
  85.         return false;
  86.     }
  87.  
  88.  
  89.  
  90.     function button_press_event($widget, $event)
  91.     {
  92.         if ($event->button == 1 && $this->pixmap) {
  93.             $this->draw_brush($widget, (int)$event->x, (int)$event->y);
  94.         }
  95.  
  96.         return true;
  97.     }
  98.  
  99.  
  100.  
  101.     function motion_notify_event($widget, $event)
  102.     {
  103.         $window  = $event->window;
  104.         $pointer = $window->get_pointer();
  105.         $x = $pointer[0];
  106.         $y = $pointer[1];
  107.         $state = $pointer[2];
  108.  
  109.         if (($state & Gdk::BUTTON1_MASK) && $this->pixmap) {
  110.             $this->draw_brush($widget, $x, $y);
  111.         }
  112.  
  113.         return true;
  114.     }
  115.  
  116.  
  117.  
  118.     function draw_brush($widget, $x, $y)
  119.     {
  120.         $this->pixmap->draw_arc($widget->style->black_gc, true, $x - 4, $y - 4, 8, 8, 0, 64 * 360);
  121.         $widget->queue_draw_area($x - 4, $y - 4, 8, 8);
  122.     }
  123. }//class Scribble extends GtkWindow
  124.  
  125.  
  126. $GLOBALS['class']       = 'Scribble';
  127. $GLOBALS['description'] = "Scribble lets you draw paintings with your mouse";
  128.  
  129. if (!@$GLOBALS['framework']) {
  130.     new Scribble();
  131.     Gtk::main();
  132. }
  133. ?>

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