[tomboy] Keyboard shortcuts for changing font size

[Sanford Armstrong <sharm src gnome org>]

commit 20b2aa19ae55dd53a40a17685c8a9665394bcf63
Author: Stefan Schweizer <steve schweizer gmail com>
Date:   Wed Jun 17 20:54:01 2009 +0200

    Keyboard shortcuts for changing font size
    
    Add menu items for increasing and decreasing the font size.
    Closes bgo#488822.

 Tomboy/NoteWindow.cs |   56 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 56 insertions(+), 0 deletions(-)
---
diff --git a/Tomboy/NoteWindow.cs b/Tomboy/NoteWindow.cs
index 80abfcc..0231da9 100644
--- a/Tomboy/NoteWindow.cs
+++ b/Tomboy/NoteWindow.cs
@@ -1191,6 +1191,8 @@ namespace Tomboy
 		Gtk.CheckMenuItem bullets;
 		Gtk.ImageMenuItem increase_indent;
 		Gtk.ImageMenuItem decrease_indent;
+		Gtk.MenuItem increase_font;
+		Gtk.MenuItem decrease_font;
 
 		// There is a bug in GTK+ that lends to improperly themed Menus
 		// and MenuItems when you derive from one of those classes; this
@@ -1337,6 +1339,22 @@ namespace Tomboy
 			hidden_no_size = new Gtk.RadioMenuItem (small.Group, string.Empty);
 			hidden_no_size.Hide ();
 
+			increase_font = new Gtk.MenuItem (Catalog.GetString ("Increase Font Size"));
+			increase_font.AddAccelerator ("activate",
+						accel_group,
+						(uint) Gdk.Key.plus,
+						Gdk.ModifierType.ControlMask,
+						Gtk.AccelFlags.Visible);
+			increase_font.Activated += IncreaseFontClicked;
+
+			decrease_font = new Gtk.MenuItem (Catalog.GetString ("Decrease Font Size"));
+			decrease_font.AddAccelerator ("activate",
+						accel_group,
+						(uint) Gdk.Key.minus,
+						Gdk.ModifierType.ControlMask,
+						Gtk.AccelFlags.Visible);
+			decrease_font.Activated += DecreaseFontClicked;
+
 			Gtk.SeparatorMenuItem spacer2 = new Gtk.SeparatorMenuItem ();
 
 			bullets = new Gtk.CheckMenuItem (Catalog.GetString ("Bullets"));
@@ -1372,6 +1390,8 @@ namespace Tomboy
 			Append (normal);
 			Append (large);
 			Append (huge);
+			Append (increase_font);
+			Append (decrease_font);
 			Append (spacer2);
 			Append (bullets);
 			Append (increase_indent);
@@ -1495,6 +1515,42 @@ namespace Tomboy
 				buffer.SetActiveTag (tag);
 		}
 
+		void IncreaseFontClicked (object sender, EventArgs args)
+		{
+			if (event_freeze)
+				return;
+
+			if (buffer.IsActiveTag ("size:small")) {
+				buffer.RemoveActiveTag ("size:small");
+			} else if (buffer.IsActiveTag ("size:large")) {
+				buffer.RemoveActiveTag ("size:large");
+				buffer.SetActiveTag ("size:huge");
+			} else if (buffer.IsActiveTag ("size:huge")) {
+				// Maximum font size, do nothing
+			} else {
+				// Current font size is normal
+				buffer.SetActiveTag ("size:large");
+			}
+		}
+
+		void DecreaseFontClicked (object sender, EventArgs args)
+		{
+			if (event_freeze)
+				return;
+
+			if (buffer.IsActiveTag ("size:small")) {
+				// Minimum font size, do nothing
+			} else if (buffer.IsActiveTag ("size:large")) {
+				buffer.RemoveActiveTag ("size:large");
+			} else if (buffer.IsActiveTag ("size:huge")) {
+				buffer.RemoveActiveTag ("size:huge");
+				buffer.SetActiveTag ("size:large");
+			} else {
+				// Current font size is normal
+				buffer.SetActiveTag ("size:small");
+			}
+		}
+
 		void UndoClicked (object sender, EventArgs args)
 		{
 			if (undo_manager.CanUndo) {