From f6e3f9e03368221a67f9f9039d484f6ff8d60da5 Mon Sep 17 00:00:00 2001
From: Gergely Polonkai <gergely@polonkai.eu>
Date: Fri, 27 Jun 2014 16:51:56 +0200
Subject: [PATCH] Change ag_chart_create_svg() to return the length of the SVG
 document

This is needed later for SVG export
---
 src/ag-chart.c  | 6 +++++-
 src/ag-chart.h  | 1 +
 src/ag-window.c | 2 +-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/ag-chart.c b/src/ag-chart.c
index 6c14b01..e2c2dd0 100644
--- a/src/ag-chart.c
+++ b/src/ag-chart.c
@@ -612,7 +612,7 @@ ag_chart_save_to_file(AgChart *chart, GFile *file, GError **err)
 }
 
 gchar *
-ag_chart_create_svg(AgChart *chart, GError **err)
+ag_chart_create_svg(AgChart *chart, gsize *length, GError **err)
 {
     xmlDocPtr         doc = create_save_doc(chart);
     xmlDocPtr         xslt_doc;
@@ -851,6 +851,10 @@ ag_chart_create_svg(AgChart *chart, GError **err)
     xmlDocDumpFormatMemoryEnc(svg_doc, (xmlChar **)&save_content, &save_length, "UTF-8", 1);
     xmlFreeDoc(svg_doc);
 
+    if (length != NULL) {
+        *length = save_length;
+    }
+
     return save_content;
 }
 
diff --git a/src/ag-chart.h b/src/ag-chart.h
index 1399644..9724b56 100644
--- a/src/ag-chart.h
+++ b/src/ag-chart.h
@@ -53,6 +53,7 @@ void ag_chart_set_city(AgChart     *chart,
                        const gchar *city);
 gchar *ag_chart_get_city(AgChart *chart);
 gchar *ag_chart_create_svg(AgChart *chart,
+                           gsize   *length,
                            GError  **err);
 
 #define AG_CHART_ERROR (ag_chart_error_quark())
diff --git a/src/ag-window.c b/src/ag-window.c
index 28c69a5..0f8c0b6 100644
--- a/src/ag-window.c
+++ b/src/ag-window.c
@@ -176,7 +176,7 @@ ag_window_redraw_chart(AgWindow *window)
     GError *err = NULL;
     gchar  *svg_content;
 
-    svg_content = ag_chart_create_svg(window->priv->chart, &err);
+    svg_content = ag_chart_create_svg(window->priv->chart, NULL, &err);
 
     if (svg_content == NULL) {
         GtkWidget *dialog;