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-rw-r--r--src/Canvas.cpp9
1 files changed, 4 insertions, 5 deletions
diff --git a/src/Canvas.cpp b/src/Canvas.cpp
index 4d59b6f..89cea9d 100644
--- a/src/Canvas.cpp
+++ b/src/Canvas.cpp
@@ -1427,7 +1427,7 @@ GanvCanvasImpl::port_event(GdkEvent* event, GanvPort* port)
const int screen_height = gdk_screen_get_height(screen);
const double drag_dx = mouse_x - control_start_x;
const double drag_dy = mouse_y - control_start_y;
- const double xpad = 100.0; // Pad from screen edge
+ const double xpad = 8.0; // Pad from screen edge
const double ythresh = 0.2; // Minimum y fraction for fine
const double range_x = ((drag_dx > 0)
@@ -1445,11 +1445,10 @@ GanvCanvasImpl::port_event(GdkEvent* event, GanvPort* port)
? port->impl->control->max - control_start_value
: control_start_value - port->impl->control->min;
- const double fine = (dy < 0.20)
- ? 0.0
- : ((dy - ythresh) * (1/(1 + ythresh)));
+ const double sens = (dy < ythresh)
+ ? 1.0
+ : 1.0 - fabs(drag_dy / (range_y + ythresh));
- const double sens = fmaxf(1.0 - fine, value_range / range_x);
const double dvalue = (dx * value_range) * sens;
double value = control_start_value + dvalue;
if (value < port->impl->control->min) {