Various improvements

sys/common/data_grid.php

@@ -21,10 +21,15 @@ class Data_Grid extends GtkTreeView {
 
 	/**
 	 * Create the object
+	 *
+	 * @param object $model
 	 */
-	public function __construct()
+	public function __construct($model = null)
 	{
-		$this->model = new GtkTreeStore(Gobject::TYPE_PHP_VALUE, Gobject::TYPE_PHP_VALUE);
+		$this->model = ( ! is_null($model))
+			? $model
+			: new GtkTreeStore(Gobject::TYPE_PHP_VALUE, Gobject::TYPE_PHP_VALUE);
+
 		parent::__construct($this->model);
 	}
 
@@ -40,4 +45,30 @@ class Data_Grid extends GtkTreeView {
 	{
 		// @todo implement
 	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Set the value of the cell at the provided coordinate array
+	 *
+	 * @param array $coord
+	 * @param mixed $val
+	 */
+	public function set(array $coord, $val)
+	{
+		// @todo implement
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Return a new Data_grid object
+	 *
+	 * @param object $model
+	 */
+	public function reset($model = null)
+	{
+		return new Data_Grid($model);
+	}
 }
+// End of data_grid.php

sys/db/query_builder.php

@@ -21,8 +21,6 @@ class Query_Builder {
 	// Compiled query component strings
 	private $select_string,
 		$from_string,
-		$insert_string,
-		$update_string,
 		$set_string,
 		$order_string,
 		$group_string;

sys/windows/add_db.php

@@ -32,5 +32,4 @@ class Add_DB extends GtkWindow {
 		$this->show_all();
 	}
 }
-
 // End of add_db.php

sys/windows/edit_db.php

@@ -17,7 +17,12 @@
  */
 class Edit_DB extends GtkWindow {
 
-	public function __construct()
+	/**
+	 * Connection editing window
+	 *
+	 * @param string $db
+	 */
+	public function __construct($db)
 	{
 		parent::__construct();
 
@@ -25,12 +30,11 @@ class Edit_DB extends GtkWindow {
 		$this->set_title("Edit Database Connection");
 
 		// Create the layout table
-		$connection_form = new DB_Info_Widget();
+		$connection_form = new DB_Info_Widget(Settings::get_instance()->get_db($db));
 
 		// Add the Vbox, and show the window
 		$this->add($connection_form);
 		$this->show_all();
 	}
 }
-
 // End of edit_db.php

sys/windows/main.php

@@ -150,7 +150,7 @@ class Main extends GtkWindow {
 
 		$scrolled_win = new GtkScrolledWindow();
     	$scrolled_win->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
-    	$scrolled_win->add_with_viewport(new DB_tabs());
+    	$scrolled_win->add_with_viewport(DB_tabs::get_instance());
 
     	// Add the connection sidebar
     	$this->connection_sidebar =& Connection_Sidebar::get_instance();

sys/windows/widgets/connection_sidebar.php

@@ -17,7 +17,7 @@
  */
 class Connection_Sidebar extends GtkVBox {
 
-	protected $settings, $menu, $treeview, $model;
+	protected $settings, $menu, $treeview;
 	private static $instance;
 
 	/**
@@ -60,9 +60,6 @@ class Connection_Sidebar extends GtkVBox {
 
 		// Treeview to show database connections
 		{
-			// Create a Storage object for connection list
-			$this->model = new GtkListStore(GObject::TYPE_PHP_VALUE, GObject::TYPE_STRING);
-
 			// Render the treeview
 			$this->_render();
 
@@ -86,6 +83,11 @@ class Connection_Sidebar extends GtkVBox {
 	 */
 	protected function _render()
 	{
+		// Initialize the treeview
+		$this->treeview = new Data_Grid();
+
+		$model = $this->treeview->get_model();
+
 		// Add the existing connections to the model
 		$db_conns = $this->settings->get_dbs();
 		if( ! empty($db_conns))
@@ -95,14 +97,11 @@ class Connection_Sidebar extends GtkVBox {
 				$db = $props;
 				$db->name = $name;
 
-				$iter = $this->model->append();
+				$iter = $model->append();
-				$this->model->set($iter, 0, $db);
+				$model->set($iter, 0, $db);
 			}
 		}
 
-		// Initialize the treeview with the data
-		$this->treeview = new GtkTreeView($this->model);
-
 		// Icon column
 		$cell_renderer = new GtkCellRendererPixbuf();
 		$this->treeview->insert_column_with_data_func(0, 'Type', $cell_renderer, array($this, 'set_icon'));
@@ -125,7 +124,7 @@ class Connection_Sidebar extends GtkVBox {
 	public function set_icon($col, $cell, $model, $iter)
 	{
 		$col->set_reorderable(TRUE);
-		$info = $this->model->get_value($iter, 0);
+		$info = $model->get_value($iter, 0);
 		$db_type = strtolower($info->type);
 		$img_file = BASE_DIR."/images/{$db_type}-logo-32.png";
 
@@ -154,7 +153,7 @@ class Connection_Sidebar extends GtkVBox {
 	public function set_label($col, $cell, $model, $iter)
 	{
 		$col->set_reorderable(TRUE);
-		$info = $this->model->get_value($iter, 0);
+		$info = $model->get_value($iter, 0);
 		$cell->set_property('text', $info->name);
 	}
 

sys/windows/widgets/db_tabs.php

@@ -17,6 +17,25 @@
  */
 class DB_tabs extends GTKNotebook {
 
+	private static $instance;
+
+	/**
+	 * Return the db tabs object if it exists, or create and return
+	 *
+	 * @return DB_tabs
+	 */
+	public static function &get_instance()
+	{
+		if (empty(self::$instance))
+		{
+			self::$instance = new DB_tabs();
+		}
+
+		return self::$instance;
+	}
+
+	// --------------------------------------------------------------------------
+
 	/**
 	 * Create the object
 	 */
@@ -49,5 +68,19 @@ class DB_tabs extends GTKNotebook {
 		$this->append_page($widget, new GtkLabel($label));
 	}
 
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Creates a new instance of this class, and destroys the existing
+	 * instance
+	 *
+	 * @return DB_tabs
+	 */
+	public function reset()
+	{
+		unset(self::$instance);
+		return self::get_instance();
+	}
+
 }
 // End of db_tabs.php