[pdfmod] Add Invert Selection action (BGO #597761)

[Gabriel Burt <gburt src gnome org>]

commit bb2ff310a02b102f619ae6b4a1bfd8effaa3337d
Author: Gabriel Burt <gabriel burt gmail com>
Date:   Wed Oct 7 18:57:12 2009 -0700

    Add Invert Selection action (BGO #597761)

 src/PdfMod/Gui/Actions.cs          |    8 +++++++-
 src/PdfMod/Gui/DocumentIconView.cs |    4 ++++
 src/Resources/UIManager.xml        |    1 +
 3 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/src/PdfMod/Gui/Actions.cs b/src/PdfMod/Gui/Actions.cs
index 01dda92..94e7b92 100644
--- a/src/PdfMod/Gui/Actions.cs
+++ b/src/PdfMod/Gui/Actions.cs
@@ -45,7 +45,7 @@ namespace PdfMod.Gui
 
         static string [] require_doc_actions = new string[] {
             "Save", "SaveAs", "Properties", "Undo", "Redo", "ZoomFit", "OpenInViewer",
-            "SelectAll", "SelectEvens", "SelectOdds", "SelectMatching", "InsertFrom", "ExportImages"
+            "SelectAll", "SelectEvens", "SelectOdds", "SelectMatching", "SelectInverse", "InsertFrom", "ExportImages"
         };
 
         static string [] require_page_actions = new string[] {
@@ -79,6 +79,7 @@ namespace PdfMod.Gui
                 new ActionEntry ("SelectEvens", null, Catalog.GetString ("Select Even Pages"), null, null, OnSelectEvens),
                 new ActionEntry ("SelectOdds", null, Catalog.GetString ("Select Odd Pages"), null, null, OnSelectOdds),
                 new ActionEntry ("SelectMatching", null, Catalog.GetString ("Select Matching..."), "<control>F", null, OnSelectMatching),
+                new ActionEntry ("SelectInverse", null, Catalog.GetString ("_Invert Selection"), "<shift><control>I", null, OnSelectInverse),
                 new ActionEntry ("Undo", Stock.Undo, null, "<control>z", null, OnUndo),
                 new ActionEntry ("Redo", Stock.Redo, null, "<control>y", null, OnRedo),
 
@@ -511,6 +512,11 @@ namespace PdfMod.Gui
             app.ToggleMatchQuery ();
         }
 
+        void OnSelectInverse (object o, EventArgs args)
+        {
+            app.IconView.SetPageSelectionMode (PageSelectionMode.Inverse);
+        }
+
         void OnZoomIn (object o, EventArgs args)
         {
             app.IconView.Zoom (10);
diff --git a/src/PdfMod/Gui/DocumentIconView.cs b/src/PdfMod/Gui/DocumentIconView.cs
index a805017..381ef36 100644
--- a/src/PdfMod/Gui/DocumentIconView.cs
+++ b/src/PdfMod/Gui/DocumentIconView.cs
@@ -35,6 +35,7 @@ namespace PdfMod.Gui
         Evens,
         Odds,
         Matching,
+        Inverse,
         All
     }
 
@@ -542,6 +543,9 @@ namespace PdfMod.Gui
                         case PageSelectionMode.Matching:
                             select = matches.Contains (store.GetValue (iter, PageListStore.PageColumn) as Page);
                             break;
+                        case PageSelectionMode.Inverse:
+                            select = !PathIsSelected (path);
+                            break;
                     }
 
                     if (select) {
diff --git a/src/Resources/UIManager.xml b/src/Resources/UIManager.xml
index b481b2b..a8c68dd 100644
--- a/src/Resources/UIManager.xml
+++ b/src/Resources/UIManager.xml
@@ -28,6 +28,7 @@
       <menuitem action="SelectOdds"/>
       <menuitem action="SelectEvens"/>
       <menuitem action="SelectMatching"/>
+      <menuitem action="SelectInverse"/>
       <separator/>
     </menu>
     <menu action="ViewMenu">