[gnome-devel-docs] Added parameters to callback functions

[Tiffany Antopolski <antopolski src gnome org>]

commit 0521a8021579482d21dc98e60633df7d4a070167
Author: Tiffany Antopolski <tiffany antopolski gmail com>
Date:   Wed Jun 6 23:27:25 2012 -0400

    Added parameters to callback functions

 platform-demos/C/samples/aboutdialog.vala          |    4 +-
 platform-demos/C/samples/button.vala               |    2 +-
 platform-demos/C/samples/gmenu.vala                |    4 +--
 platform-demos/C/samples/messagedialog.vala        |   12 ++++----
 platform-demos/C/samples/messagedialog_old.vala    |   28 --------------------
 platform-demos/C/samples/statusbar.vala            |    7 +---
 platform-demos/C/samples/switch.vala               |    8 ++---
 .../C/samples/treeview_simple_liststore.vala       |   13 ++++-----
 8 files changed, 21 insertions(+), 57 deletions(-)
---
diff --git a/platform-demos/C/samples/aboutdialog.vala b/platform-demos/C/samples/aboutdialog.vala
index 5892002..d28b974 100644
--- a/platform-demos/C/samples/aboutdialog.vala
+++ b/platform-demos/C/samples/aboutdialog.vala
@@ -12,10 +12,10 @@ public class Window : Gtk.ApplicationWindow {
 		this.show_all ();
 	}
 
-	/* This is the callback function connected to the 'activate' signal 
+	/* This is the callback function connected to the 'activate' signal
 	 * of the SimpleAction about_action.
 	 */
-	void about_cb () {
+	void about_cb (SimpleAction simple, Variant? parameter) {
 		string[] authors = { "GNOME Documentation Team", null };
 		string[] documenters = { "GNOME Documentation Team", null };
 
diff --git a/platform-demos/C/samples/button.vala b/platform-demos/C/samples/button.vala
index 77d20a8..7dc4171 100644
--- a/platform-demos/C/samples/button.vala
+++ b/platform-demos/C/samples/button.vala
@@ -14,7 +14,7 @@ public class MyWindow : Gtk.ApplicationWindow {
 		this.add (button);
 	}
 
-	/* The callback function connected to the 
+	/* The callback function connected to the
 	 * 'clicked' signal of the button.
 	 */
 	void reverse_label (Gtk.Button button) {
diff --git a/platform-demos/C/samples/gmenu.vala b/platform-demos/C/samples/gmenu.vala
index 3c2d07e..e23ec88 100644
--- a/platform-demos/C/samples/gmenu.vala
+++ b/platform-demos/C/samples/gmenu.vala
@@ -19,7 +19,7 @@ public class Window : Gtk.ApplicationWindow {
 	}
 
 	/* Signal handler for 'activate' signal of the SimpleAction. */
-	void about_cb () {
+	void about_cb (SimpleAction simple, Variant? parameter) {
 		print ("This does nothing.  It is only a demonstration.\n");
 	}
 }
@@ -52,8 +52,6 @@ public class Application : Gtk.Application {
 		//quit_action.activate.connect (this.quit);
 		this.add_action (quit_action);
 	}
-
-
 }
 
 /* main function creates Application and runs it. */
diff --git a/platform-demos/C/samples/messagedialog.vala b/platform-demos/C/samples/messagedialog.vala
index 3c6cf47..ddab941 100644
--- a/platform-demos/C/samples/messagedialog.vala
+++ b/platform-demos/C/samples/messagedialog.vala
@@ -29,15 +29,15 @@ public class Window : Gtk.ApplicationWindow {
 			dialog.destroy();
 	}
 
-	void message () {
+	void message (SimpleAction simple, Variant? parameter) {
 		var messagedialog = new Gtk.MessageDialog (this,
-						           Gtk.DialogFlags.MODAL,
-		                                           Gtk.MessageType.WARNING,
-                                                           Gtk.ButtonsType.OK_CANCEL,
-	                                                   "This action will cause the universe to stop existing.");
+                            Gtk.DialogFlags.MODAL,
+                            Gtk.MessageType.WARNING,
+                            Gtk.ButtonsType.OK_CANCEL,
+                            "This action will cause the universe to stop existing.");
 
 		messagedialog.response.connect (dialog_response);
- 		messagedialog.show ();
+		messagedialog.show ();
 	}
 }
 
diff --git a/platform-demos/C/samples/statusbar.vala b/platform-demos/C/samples/statusbar.vala
index 4ae729d..8ee5071 100644
--- a/platform-demos/C/samples/statusbar.vala
+++ b/platform-demos/C/samples/statusbar.vala
@@ -8,12 +8,10 @@ public class MyWindow : Gtk.ApplicationWindow {
 
 		statusbar = new Gtk.Statusbar ();
 		context_id = statusbar.get_context_id ("example");
-		
 		statusbar.push (context_id, "Waiting for you to do something...");
 
 		//set the default size of the window
 		this.set_default_size (200, 100);
-		
 		var grid = new Gtk.Grid ();
 		var label = new Gtk.Label ("Press any key or ");
 
@@ -37,9 +35,9 @@ public class MyWindow : Gtk.ApplicationWindow {
 		button.clicked.connect(button_clicked_cb);
 	}
 
-	/* Since the key-press-event is a signal received by the window, we don't need to connect 
+	/* Since the key-press-event is a signal received by the window, we don't need to connect
 	the window to a callback function.  We can just override key_press_event. */
-	protected override bool key_press_event (Gdk.EventKey event) {		
+	protected override bool key_press_event (Gdk.EventKey event) {
 		statusbar.push (context_id, Gdk.keyval_name(event.keyval) + " key was pressed.");
 		return true;
 	}
@@ -47,7 +45,6 @@ public class MyWindow : Gtk.ApplicationWindow {
 	void button_clicked_cb (Gtk.Button button) {
 		statusbar.push (context_id, "You clicked the button.");
 	}
-	
 }
 
 public class MyApplication : Gtk.Application {
diff --git a/platform-demos/C/samples/switch.vala b/platform-demos/C/samples/switch.vala
index 6df42b7..a62cdd2 100644
--- a/platform-demos/C/samples/switch.vala
+++ b/platform-demos/C/samples/switch.vala
@@ -1,7 +1,5 @@
 class MyWindow : Gtk.ApplicationWindow {
 
-	Gtk.Switch switcher;
-
 	internal MyWindow (MyApplication app) {
 		Object (application: app, title: "Switch Example");
 
@@ -9,7 +7,7 @@ class MyWindow : Gtk.ApplicationWindow {
 		this.border_width = 10;
 
 		var label = new Gtk.Label ("Title");
-		switcher = new Gtk.Switch ();
+		var switcher = new Gtk.Switch ();
 
 		switcher.set_active (true);
 
@@ -23,8 +21,8 @@ class MyWindow : Gtk.ApplicationWindow {
 		this.add (grid);
 	}
 
-	void switcher_cb () {
-		if (switcher.get_active())
+	void switcher_cb (Object switcher, ParamSpec pspec) {
+		if ((switcher as Gtk.Switch).get_active())
 			this.set_title ("Switch Example");
 		else
 			this.set_title ("");
diff --git a/platform-demos/C/samples/treeview_simple_liststore.vala b/platform-demos/C/samples/treeview_simple_liststore.vala
index 1c0cc32..7e77895 100644
--- a/platform-demos/C/samples/treeview_simple_liststore.vala
+++ b/platform-demos/C/samples/treeview_simple_liststore.vala
@@ -2,7 +2,7 @@ public class PhoneBookEntry {
 	public string firstname;
 	public string lastname;
 	public string phone;
-	
+
 	public PhoneBookEntry (string f, string l, string p) {
 		this.firstname = f;
 		this.lastname = l;
@@ -12,7 +12,6 @@ public class PhoneBookEntry {
 
 class TreeViewSimpleListStore : Gtk.ApplicationWindow {
 
-	Gtk.TreeSelection selection;
 	Gtk.Label label;
 
 	PhoneBookEntry[] phonebook = {
@@ -43,12 +42,12 @@ class TreeViewSimpleListStore : Gtk.ApplicationWindow {
 		label = new Gtk.Label ("");
 
 		var grid = new Gtk.Grid ();
-	
+
 		grid.attach (view, 0, 0, 1, 1);
 		grid.attach (label, 0, 1, 1, 1);
 		this.add (grid);
-	
-		selection = view.get_selection ();
+
+		var selection = view.get_selection ();
 		selection.changed.connect (this.on_changed);
 	}
 
@@ -60,7 +59,7 @@ class TreeViewSimpleListStore : Gtk.ApplicationWindow {
 
 		var cell = new Gtk.CellRendererText ();
 
-		/* 'weight' refers to font boldness.  
+		/* 'weight' refers to font boldness.
 		 *  400 is normal.
 		 *  700 is bold.
 		 */
@@ -91,7 +90,7 @@ class TreeViewSimpleListStore : Gtk.ApplicationWindow {
 		}
 	}
 
-	void on_changed () {
+	void on_changed (Gtk.TreeSelection selection) {
 		Gtk.TreeModel model;
 		Gtk.TreeIter iter;
 		string name;