From: Anders Björklund <anders@itension.se>
Date: Sun, 26 Jun 2016 11:53:02 +0000 (+0200)
Subject: Add gfx_get_text_height function, to match width
X-Git-Tag: v1.7.0~44^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0ca7fd4acf435e2a6b54d457bb978e5dd3e8db5f;p=thirdparty%2Frrdtool-1.x.git

Add gfx_get_text_height function, to match width
---

diff --git a/src/rrd_gfx.c b/src/rrd_gfx.c
index 2c48c00c..fa7b2233 100644
--- a/src/rrd_gfx.c
+++ b/src/rrd_gfx.c
@@ -20,6 +20,8 @@
 #include "rrd_tool.h"
 #include "rrd_graph.h"
 
+#include "unused.h"
+
 
 /* create a new line */
 void gfx_line(
@@ -240,6 +242,22 @@ double gfx_get_text_width(
     return log_rect.width;
 }
 
+double gfx_get_text_height(
+    image_desc_t *im,
+    double UNUSED(start),
+    PangoFontDescription *font_desc,
+    double tabwidth,
+    char *text)
+{
+    PangoLayout *layout;
+    PangoRectangle log_rect;
+    gfx_color_t color = { 0, 0, 0, 0 };
+    layout = gfx_prep_text(im, 0.0, color, font_desc, tabwidth, text);
+    pango_layout_get_pixel_extents(layout, NULL, &log_rect);
+/*    g_object_unref(layout); */
+    return log_rect.height;
+}
+
 void gfx_text(
     image_desc_t *im,
     double x,
diff --git a/src/rrd_graph.h b/src/rrd_graph.h
index c9522253..7031cf95 100644
--- a/src/rrd_graph.h
+++ b/src/rrd_graph.h
@@ -570,6 +570,14 @@ double    gfx_get_text_width(
     double tabwidth,
     char *text);
 
+/* measure height of a text string */
+double    gfx_get_text_height(
+    image_desc_t *im,
+    double start,
+    PangoFontDescription *font_desc,
+    double tabwidth,
+    char *text);
+
 
 /* convert color */
 gfx_color_t gfx_hex_to_col(