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-rw-r--r--gtk2_ardour/utils.cc29
1 files changed, 29 insertions, 0 deletions
diff --git a/gtk2_ardour/utils.cc b/gtk2_ardour/utils.cc
index 5b67022ee0..a52969268a 100644
--- a/gtk2_ardour/utils.cc
+++ b/gtk2_ardour/utils.cc
@@ -17,6 +17,9 @@
*/
+#include <pango/pangoft2.h> // for fontmap resolution control for GnomeCanvas
+#include <pango/pangocairo.h> // for fontmap resolution control for GnomeCanvas
+
#include <cstdlib>
#include <cctype>
#include <fstream>
@@ -32,6 +35,7 @@
#include <pbd/file_utils.h>
#include <gtkmm2ext/utils.h>
+#include <ardour/configuration.h>
#include <ardour/filesystem_paths.h>
@@ -48,6 +52,8 @@ using namespace sigc;
using namespace Glib;
using namespace PBD;
+sigc::signal<void> DPIReset;
+
int
pixel_width (const ustring& str, Pango::FontDescription& font)
{
@@ -706,6 +712,29 @@ key_is_legal_for_numeric_entry (guint keyval)
return false;
}
+void
+set_pango_fontsize ()
+{
+ long val = ARDOUR::Config->get_font_scale();
+
+ /* FT2 rendering */
+
+ pango_ft2_font_map_set_resolution ((PangoFT2FontMap*) pango_ft2_font_map_for_display(), val/1024, val/1024);
+
+ /* Cairo rendering, in case there is any */
+
+ pango_cairo_font_map_set_resolution ((PangoCairoFontMap*) pango_cairo_font_map_get_default(), val/1024);
+}
+void
+reset_dpi ()
+{
+ long val = ARDOUR::Config->get_font_scale();
+ set_pango_fontsize ();
+ /* Xft rendering */
+ gtk_settings_set_long_property (gtk_settings_get_default(),
+ "gtk-xft-dpi", val, "ardour");
+ DPIReset();//Emit Signal
+}