[gtk/matthiasc/for-master] docs: Add GtkCalendar to the gallery

[Matthias Clasen <matthiasc src gnome org>]

commit dffe6b87e447e053de65b5dbae1fc2eb4e1aeb97
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Oct 25 22:32:27 2020 -0400

    docs: Add GtkCalendar to the gallery
    
    It has been missing far too long.

 docs/reference/gtk/images/calendar.png | Bin 0 -> 16807 bytes
 docs/reference/gtk/meson.build         |   1 +
 docs/reference/gtk/visual_index.xml    |   1 +
 docs/tools/widgets.c                   |  20 ++++++++++++++++++++
 4 files changed, 22 insertions(+)
---
diff --git a/docs/reference/gtk/images/calendar.png b/docs/reference/gtk/images/calendar.png
new file mode 100644
index 0000000000..7c1f63ffcf
Binary files /dev/null and b/docs/reference/gtk/images/calendar.png differ
diff --git a/docs/reference/gtk/meson.build b/docs/reference/gtk/meson.build
index 9f6d915a05..b00bdb5285 100644
--- a/docs/reference/gtk/meson.build
+++ b/docs/reference/gtk/meson.build
@@ -244,6 +244,7 @@ images = [
   'images/box-packing.png',
   'images/builder-shortcuts.png',
   'images/button.png',
+  'images/calendar.png',
   'images/capture-bubble.png',
   'images/check-button.png',
   'images/checks.png',
diff --git a/docs/reference/gtk/visual_index.xml b/docs/reference/gtk/visual_index.xml
index 2ad288451b..990c322838 100644
--- a/docs/reference/gtk/visual_index.xml
+++ b/docs/reference/gtk/visual_index.xml
@@ -18,6 +18,7 @@
     <link linkend="GtkSeparator"><inlinegraphic fileref="separator.png" format="PNG"></inlinegraphic></link>
     <link linkend="GtkTextView"><inlinegraphic fileref="multiline-text.png" 
format="PNG"></inlinegraphic></link>
     <link linkend="GtkScale"><inlinegraphic fileref="scales.png" format="PNG"></inlinegraphic></link>
+    <link linkend="GtkCalendar"><inlinegraphic fileref="calendar.png" format="PNG"></inlinegraphic></link>
     <link linkend="GtkGLArea"><inlinegraphic fileref="glarea.png" format="PNG"></inlinegraphic></link>
     <link linkend="GtkVideo"><inlinegraphic fileref="video.png" format="PNG"></inlinegraphic></link>
     <link linkend="GtkMediaControls"><inlinegraphic fileref="media-controls.png" 
format="PNG"></inlinegraphic></link>
diff --git a/docs/tools/widgets.c b/docs/tools/widgets.c
index f324f4fb42..04c6882140 100644
--- a/docs/tools/widgets.c
+++ b/docs/tools/widgets.c
@@ -1536,6 +1536,25 @@ create_window_controls (void)
   return new_widget_info ("windowcontrols", vbox, SMALL);
 }
 
+static WidgetInfo *
+create_calendar (void)
+{
+  GtkWidget *widget;
+  GtkWidget *vbox;
+
+  widget = gtk_calendar_new ();
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 3);
+  gtk_widget_set_halign (widget, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (widget, GTK_ALIGN_CENTER);
+  gtk_box_append (GTK_BOX (vbox), widget);
+  gtk_box_append (GTK_BOX (vbox), gtk_label_new ("Calendar"));
+
+  add_margin (vbox);
+
+  return new_widget_info ("calendar", vbox, MEDIUM);
+}
+
 GList *
 get_all_widgets (void)
 {
@@ -1602,6 +1621,7 @@ get_all_widgets (void)
   retval = g_list_prepend (retval, create_editable_label ());
   retval = g_list_prepend (retval, create_drop_down ());
   retval = g_list_prepend (retval, create_window_controls ());
+  retval = g_list_prepend (retval, create_calendar ());
 
   return retval;
 }