added command line option '--dpi dpinum'.

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@3443 ee746299-78ed-0310-b773-934348b2243d

1 files changed, 13 insertions, 4 deletions

diff --git a/src/gtkutils.c b/src/gtkutils.c
index de014305..ec8cd8a2 100644
--- a/src/gtkutils.c
+++ b/src/gtkutils.c
@@ -144,19 +144,23 @@ gboolean gtkut_font_can_load(const gchar *str)
 #endif
 }
 
+static gdouble system_dpi = 0.0;
+
 gdouble gtkut_get_dpi(void)
 {
-	gdouble dpi;
 	gdouble dp, di;
 
+	if (system_dpi > 0.0)
+		return system_dpi;
+
 	//dpi = gdk_screen_get_resolution(gdk_screen_get_default());
 
 	dp = gdk_screen_get_height(gdk_screen_get_default());
 	di = gdk_screen_get_height_mm(gdk_screen_get_default()) / 25.4;
-	dpi = dp / di;
+	system_dpi = dp / di;
 
-	debug_print("gtkut_get_dpi: dpi: %f\n", dpi);
-	return dpi;
+	debug_print("gtkut_get_dpi: dpi: %f\n", system_dpi);
+	return system_dpi;
 }
 
 gdouble gtkut_get_dpi_multiplier(void)
@@ -177,6 +181,11 @@ gdouble gtkut_get_dpi_multiplier(void)
 	return mul;
 }
 
+void gtkut_set_dpi(gdouble dpi)
+{
+	system_dpi = dpi;
+}
+
 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
 {
 	g_return_if_fail(color != NULL);