[gtk+] gtk3-demo: Add a page setup example

[Matthias Clasen <matthiasc src gnome org>]

commit bce624e7a766ce312686c10d0d277bd2bda67e9e
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue May 12 08:20:35 2015 -0400

    gtk3-demo: Add a page setup example
    
    This mainly so I can fix deprecation warnings in the
    page setup dialog.

 demos/gtk-demo/Makefile.am        |    4 +++
 demos/gtk-demo/demo.gresource.xml |    1 +
 demos/gtk-demo/pagesetup.c        |   38 +++++++++++++++++++++++++++++++++++++
 demos/gtk-demo/printing.c         |    2 +-
 4 files changed, 44 insertions(+), 1 deletions(-)
---
diff --git a/demos/gtk-demo/Makefile.am b/demos/gtk-demo/Makefile.am
index f8b7c9f..19c3abf 100644
--- a/demos/gtk-demo/Makefile.am
+++ b/demos/gtk-demo/Makefile.am
@@ -61,6 +61,10 @@ demos =                                              \
        transparent.c                           \
        tree_store.c
 
+if OS_UNIX
+demos += pagesetup.c
+endif
+
 AM_CPPFLAGS = \
        -I$(top_srcdir)                         \
        -I$(top_builddir)/gdk                   \
diff --git a/demos/gtk-demo/demo.gresource.xml b/demos/gtk-demo/demo.gresource.xml
index 91f50b6..c364e42 100644
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -147,6 +147,7 @@
     <file>offscreen_window.c</file>
     <file>offscreen_window2.c</file>
     <file>overlay.c</file>
+    <file>pagesetup.c</file>
     <file>panes.c</file>
     <file>pickers.c</file>
     <file>pixbufs.c</file>
diff --git a/demos/gtk-demo/pagesetup.c b/demos/gtk-demo/pagesetup.c
new file mode 100644
index 0000000..59709ab
--- /dev/null
+++ b/demos/gtk-demo/pagesetup.c
@@ -0,0 +1,38 @@
+/* Printing/Page Setup
+ *
+ * GtkPageSetupUnixDialog can be used if page setup is needed
+ * independent of a full printing dialog.
+ */
+
+#include <math.h>
+#include <gtk/gtk.h>
+#include <gtk/gtkunixprint.h>
+
+static void
+done_cb (GtkDialog *dialog, gint response, gpointer data)
+{
+  gtk_widget_destroy (GTK_WIDGET (dialog));
+}
+
+GtkWidget *
+do_pagesetup (GtkWidget *do_widget)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      window = gtk_page_setup_unix_dialog_new ("Page Setup", GTK_WINDOW (do_widget));
+      g_signal_connect (window, "destroy", G_CALLBACK (gtk_widget_destroyed), &window);
+      g_signal_connect (window, "response", G_CALLBACK (done_cb), NULL);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    {
+      gtk_widget_destroy (window);
+      window = NULL;
+    }
+
+  return window;
+}
diff --git a/demos/gtk-demo/printing.c b/demos/gtk-demo/printing.c
index cc6473f..4604311 100644
--- a/demos/gtk-demo/printing.c
+++ b/demos/gtk-demo/printing.c
@@ -1,4 +1,4 @@
-/* Printing
+/* Printing/Printing
  *
  * GtkPrintOperation offers a simple API to support printing
  * in a cross-platform way.