com gtk/php-gtk: Steph's scribble adaption for the framework Beware: Crashes on exit: demos/scribble.php

Commit:    d1c87670ec9880f5530673009c0047154ebcca11
Author:    Christian Weiske <[email protected]>         Thu, 20 Oct 2005 16:27:57 +0000
Parents:   c247bda7de5b1c88eb6b558c38b9a18e95722f3f
Branches:  master

Link:       http://git.php.net/?p=gtk/php-gtk.git;a=commitdiff;h=d1c87670ec9880f5530673009c0047154ebcca11

Log:
Steph's scribble adaption for the framework
Beware: Crashes on exit

Changed paths:
  A  demos/scribble.php


Diff:
d1c87670ec9880f5530673009c0047154ebcca11
diff --git a/demos/scribble.php b/demos/scribble.php
new file mode 100644
index 0000000..c0f880b
--- /dev/null
+++ b/demos/scribble.php
@@ -0,0 +1,133 @@
+<?php
+/**
+*   Scribble demo - simple painting with your mouse
+*/
+
+class Scribble extends GtkWindow
+{
+    protected $size_group = null;
+    protected $pixmap = null;
+
+
+    function __construct($parent = null)
+    {
+        parent::__construct();
+
+        if (@$GLOBALS['framework']) {
+            return;
+        }
+
+        if ($parent)
+            $this->set_screen($parent->get_screen());
+        else
+            $this->connect_simple('destroy', array('gtk', 'main_quit'));
+
+        $this->set_title(__CLASS__);
+        $this->set_position(Gtk::WIN_POS_CENTER);
+        $this->set_default_size(-1, -1);
+        $this->set_border_width(8);
+
+        $this->add($this->__create_box());
+        $this->show_all();
+    }//function __construct($parent = null)
+
+
+
+    function __create_box()
+    {
+        $vbox = new GtkVBox();
+        $vbox->show();
+
+        $drawing_area = new GtkDrawingArea();
+        $drawing_area->set_size_request(300, 300);
+        $vbox->pack_start($drawing_area);
+//        $drawing_area->realize();
+
+        $drawing_area->connect('expose_event'       , array($this, 'expose_event'));
+        $drawing_area->connect('configure_event'    , array($this, 'configure_event'));
+
+        $drawing_area->connect('motion_notify_event', array($this, 'motion_notify_event'));
+        $drawing_area->connect('button_press_event' , array($this, 'button_press_event'));
+
+        $drawing_area->set_events(Gdk::EXPOSURE_MASK
+                                | Gdk::LEAVE_NOTIFY_MASK
+                                | Gdk::BUTTON_PRESS_MASK
+                                | Gdk::POINTER_MOTION_MASK
+                                | Gdk::POINTER_MOTION_HINT_MASK);
+
+        return $vbox;
+    }//function __create_box()
+
+
+
+    function configure_event($widget, $event)
+    {
+        $this->pixmap = new GdkPixmap($widget->window,
+                                $widget->allocation->width,
+                                $widget->allocation->height,
+                                -1);
+        $this->pixmap->draw_rectangle($widget->style->white_gc,
+                            true, 0, 0,
+                            $widget->allocation->width,
+                            $widget->allocation->height);
+        return true;
+    }
+
+
+    function expose_event($widget, $event)
+    {
+        $widget->window->draw_drawable($widget->style->fg_gc[$widget->state],
+                        $this->pixmap,
+                        $event->area->x, $event->area->y,
+                        $event->area->x, $event->area->y,
+                        $event->area->width, $event->area->height);
+
+        return false;
+    }
+
+
+
+    function button_press_event($widget, $event)
+    {
+        if ($event->button == 1 && $this->pixmap) {
+            $this->draw_brush($widget, (int)$event->x, (int)$event->y);
+        }
+
+        return true;
+    }
+
+
+
+    function motion_notify_event($widget, $event)
+    {
+        $window  = $event->window;
+        $pointer = $window->get_pointer();
+        $x = $pointer[0];
+        $y = $pointer[1];
+        $state = $pointer[2];
+
+        if (($state & Gdk::BUTTON1_MASK) && $this->pixmap) {
+            $this->draw_brush($widget, $x, $y);
+        }
+
+        return true;
+    }
+
+
+
+    function draw_brush($widget, $x, $y)
+    {
+        $this->pixmap->draw_arc($widget->style->black_gc, true, $x - 4, $y - 4, 8, 8, 0, 64 * 360);
+        $widget->queue_draw_area($x - 4, $y - 4, 8, 8);
+    }
+}//class Scribble extends GtkWindow
+
+
+$GLOBALS['class']       = 'Scribble';
+$GLOBALS['description'] = "Scribble lets you draw paintings with your mouse";
+
+if (!@$GLOBALS['framework']) {
+    new Scribble();
+    Gtk::main();
+}
+?>