[sysprof/wip/visualizers] visualizer-row: add private access to graph_width

[Christian Hergert <chergert src gnome org>]

commit c5fb8b5fc94fc9bc9b6034333f26c212868e4208
Author: Christian Hergert <chergert redhat com>
Date:   Thu Oct 6 21:02:00 2016 -0700

    visualizer-row: add private access to graph_width
    
    Having this makes a few things easier now that we are relying
    on pixel cache for scrolling.

 lib/Makefile.am                 |    1 +
 lib/sp-visualizer-row-private.h |   30 ++++++++++++++++++++++++++++++
 lib/sp-visualizer-row.c         |    9 +++++----
 3 files changed, 36 insertions(+), 4 deletions(-)
---
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 23b64a4..af2081e 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -180,6 +180,7 @@ libsysprof_ui_@API_VERSION@_la_SOURCES = \
        sp-visualizer-row.c \
        sp-visualizer-ticks.c \
        sp-visualizer-ticks.h \
+       sp-visualizer-ticks-private.h \
        sp-visualizer-view.c \
        sp-zoom-manager.c \
        $(NULL)
diff --git a/lib/sp-visualizer-row-private.h b/lib/sp-visualizer-row-private.h
new file mode 100644
index 0000000..a2bed7b
--- /dev/null
+++ b/lib/sp-visualizer-row-private.h
@@ -0,0 +1,30 @@
+/* sp-visualizer-row-private.h
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SP_VISUALIZER_ROW_PRIVATE_H
+#define SP_VISUALIZER_ROW_PRIVATE_H
+
+#include "sp-visualizer-row.h"
+
+G_BEGIN_DECLS
+
+gint _sp_visualizer_row_get_graph_width (SpVisualizerRow *self);
+
+G_END_DECLS
+
+#endif /* SP_VISUALIZER_ROW_PRIVATE_H */
diff --git a/lib/sp-visualizer-row.c b/lib/sp-visualizer-row.c
index 35f59f1..0bf420b 100644
--- a/lib/sp-visualizer-row.c
+++ b/lib/sp-visualizer-row.c
@@ -19,6 +19,7 @@
 #define G_LOG_DOMAIN "sp-visualizer-row"
 
 #include "sp-visualizer-row.h"
+#include "sp-visualizer-row-private.h"
 
 #define NSEC_PER_SEC              G_GINT64_CONSTANT(1000000000)
 #define DEFAULT_PIXELS_PER_SECOND 20
@@ -39,8 +40,8 @@ static GParamSpec *properties [N_PROPS];
 
 G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (SpVisualizerRow, sp_visualizer_row, GTK_TYPE_LIST_BOX_ROW)
 
-static gint
-sp_visualizer_row_get_graph_width (SpVisualizerRow *self)
+gint
+_sp_visualizer_row_get_graph_width (SpVisualizerRow *self)
 {
   SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
   gdouble zoom_level = 1.0;
@@ -78,7 +79,7 @@ sp_visualizer_row_get_preferred_width (GtkWidget *widget,
 
   GTK_WIDGET_CLASS (sp_visualizer_row_parent_class)->get_preferred_width (widget, &real_min_width, 
&real_nat_width);
 
-  graph_width = sp_visualizer_row_get_graph_width (self);
+  graph_width = _sp_visualizer_row_get_graph_width (self);
 
   *min_width = *nat_width = real_min_width + graph_width;
 }
@@ -292,7 +293,7 @@ sp_visualizer_row_translate_points (SpVisualizerRow                    *self,
   gtk_widget_get_allocation (GTK_WIDGET (self), &alloc);
   adjust_alloc_for_borders (self, &alloc);
 
-  graph_width = sp_visualizer_row_get_graph_width (self);
+  graph_width = _sp_visualizer_row_get_graph_width (self);
 
   for (guint i = 0; i < n_in_points; i++)
     {