fix pan-width automation

diff --git a/gtk2_ardour/automation_line.cc b/gtk2_ardour/automation_line.cc
index 993b4779dd8f4e1cfd55ce57bc67eb35cf762513..c83a8a0f0cb37f0940e6fe4f01a2adc6881ca6de 100644 (file)
--- a/gtk2_ardour/automation_line.cc
+++ b/gtk2_ardour/automation_line.cc
@@ -1122,9 +1122,10 @@ AutomationLine::view_to_model_coord_y (double& y) const
                y = max (0.0, y);
                y = min (2.0, y);
        } else if (alist->parameter().type() == PanAzimuthAutomation ||
-                  alist->parameter().type() == PanElevationAutomation ||
-                  alist->parameter().type() == PanWidthAutomation) {
+                  alist->parameter().type() == PanElevationAutomation) {
                y = 1.0 - y;
+       } else if (alist->parameter().type() == PanWidthAutomation) {
+               y = 2.0 * y - 1.0;
        } else if (alist->parameter().type() == PluginAutomation) {
                y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
        } else {
@@ -1140,10 +1141,10 @@ AutomationLine::model_to_view_coord (double& x, double& y) const
            alist->parameter().type() == EnvelopeAutomation) {
                y = gain_to_slider_position_with_max (y, Config->get_max_gain());
        } else if (alist->parameter().type() == PanAzimuthAutomation ||
-                  alist->parameter().type() == PanElevationAutomation ||
-                  alist->parameter().type() == PanWidthAutomation) {
-               // vertical coordinate axis reversal
+                  alist->parameter().type() == PanElevationAutomation) {
                y = 1.0 - y;
+       } else if (alist->parameter().type() == PanWidthAutomation) {
+               y = .5 + y * .5;
        } else if (alist->parameter().type() == PluginAutomation) {
                y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
        } else {