From: Tollef Fog Heen <tfheen@err.no>
Date: Mon, 16 Nov 2009 15:38:49 +0000 (+0100)
Subject: Make it possible to hide the scale
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fheads%2Fscale;p=libchamplain

Make it possible to hide the scale
---

diff --git a/champlain/champlain-view.c b/champlain/champlain-view.c
index f5acee4..6ea10da 100644
--- a/champlain/champlain-view.c
+++ b/champlain/champlain-view.c
@@ -1017,6 +1017,12 @@ update_scale (gpointer *unused,
   if (! priv || !priv->map || !priv->map->current_level) {
     return;
   }
+  if (priv->display_scale) {
+    clutter_actor_show(priv->scale_actor);
+  } else {
+    clutter_actor_hide(priv->scale_actor);
+  }
+
   level = priv->map->current_level;
   tile = champlain_zoom_level_get_nth_tile(level, 0);
   m_per_pixel = 2 * M_PI * 6378100 * sin(M_PI/2 - M_PI / 180*priv->latitude) /
@@ -1044,6 +1050,8 @@ create_scale (ChamplainView *view)
 		    view);
   g_signal_connect (priv->viewport, "notify::y-origin",
 		    G_CALLBACK (update_scale), view);
+  g_signal_connect (view, "notify::display-scale",
+		    G_CALLBACK (update_scale), view);
 
   scale = clutter_cairo_texture_new (SCALE_WIDTH, SCALE_HEIGHT);
   cr = clutter_cairo_texture_create (CLUTTER_CAIRO_TEXTURE (scale));
@@ -2786,3 +2794,21 @@ champlain_view_remove_polygon (ChamplainView *view,
 
   g_object_unref (polygon);
 }
+
+void
+champlain_view_show_scale (ChamplainView* view)
+{
+  g_return_if_fail (CHAMPLAIN_IS_VIEW (view));
+
+  g_object_set (G_OBJECT (view), "display-scale", TRUE, NULL);
+}
+
+void
+champlain_view_hide_scale (ChamplainView* view)
+{
+  g_return_if_fail (CHAMPLAIN_IS_VIEW (view));
+
+  g_object_set (G_OBJECT (view), "display-scale", FALSE, NULL);
+
+}
+
diff --git a/champlain/champlain-view.h b/champlain/champlain-view.h
index 85eb0e8..0549b08 100644
--- a/champlain/champlain-view.h
+++ b/champlain/champlain-view.h
@@ -147,6 +147,8 @@ void champlain_view_add_polygon (ChamplainView *view,
 void champlain_view_remove_polygon (ChamplainView *view,
     ChamplainPolygon *polygon);
 
+void champlain_view_show_scale (ChamplainView *view);
+void champlain_view_hide_scale (ChamplainView *view);
 
 G_END_DECLS