[passepartout] rewrote the about dialog handling

[Sven Herzberg <herzi src gnome org>]

commit 89e5159e8201d39fe845e47bea2667d3a05b66f5
Author: Sven Herzberg <herzi lanedo com>
Date:   Sat May 2 10:37:59 2009 +0200

    rewrote the about dialog handling
    
    * src/pptout/window.cc,
    * src/pptout/window.h,
    * src/pptout/windowmenus.cc: now we properly set the transient-for parent and
      the modality of the dialog
---
 src/pptout/window.cc      |   10 ++++++++++
 src/pptout/window.h       |    2 ++
 src/pptout/windowmenus.cc |    3 +--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/pptout/window.cc b/src/pptout/window.cc
index f002ce5..96ebaee 100644
--- a/src/pptout/window.cc
+++ b/src/pptout/window.cc
@@ -19,6 +19,7 @@
 #include "widget/imagefilesel.h"
 
 #include "config.h"
+#include "aboutdialog.h"
 #include "filter.h"
 #include "pagesel.h"
 #include "printdialog.h"
@@ -350,6 +351,15 @@ FrameWindow::save (void)
 }
 
 void
+FrameWindow::show_about (void)
+{
+  AboutDialog& about = AboutDialog::instance ();
+  about.set_transient_for (*this);
+  about.set_modal (true);
+  about.run ();
+}
+
+void
 FrameWindow::show_preferences ()
 {
   config.dialog_show (this);
diff --git a/src/pptout/window.h b/src/pptout/window.h
index fbc2fee..3c09630 100644
--- a/src/pptout/window.h
+++ b/src/pptout/window.h
@@ -70,6 +70,8 @@ private:
   void save (void);
   void save_as (void);
 
+  void show_about (void);
+
   void create_menus (Gtk::RecentFilter& filter);
   void show_preferences ();
   void close();
diff --git a/src/pptout/windowmenus.cc b/src/pptout/windowmenus.cc
index 47eebf6..c19094a 100644
--- a/src/pptout/windowmenus.cc
+++ b/src/pptout/windowmenus.cc
@@ -9,7 +9,6 @@
 #include "widget/usererror.h"
 #include "config.h"
 #include "printdialog.h"
-#include "aboutdialog.h"
 #include "propertiesdialog.h"
 #include "streamdialog.h"
 #include "inspiration.h"
@@ -345,7 +344,7 @@ FrameWindow::create_menus (Gtk::RecentFilter& f)
                   ptr_fun(&Programs::open_docs));
   
   main_group->add(Action::create("HelpAbout", Stock::ABOUT, _("_About")),
-                  mem_fun(::AboutDialog::instance(), &::AboutDialog::show_all));
+                  mem_fun(*this, &FrameWindow::show_about));
   
   main_group->add(Action::create("HelpInspiration", _("_Inspiration")),
                   mem_fun(Inspiration::instance(),