Make it easier to move the summary rectangle around when it is narrow or low in height.

git-svn-id: svn://localhost/ardour2/branches/3.0@7730 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/gtk2_ardour/editor_summary.cc b/gtk2_ardour/editor_summary.cc
index c87d91431733326446c6f7e0c6c33425264fad8a..69dd3772cbc32eff44a679a908587cc5a47d8b47 100644 (file)
--- a/gtk2_ardour/editor_summary.cc
+++ b/gtk2_ardour/editor_summary.cc
@@ -363,12 +363,19 @@ EditorSummary::get_position (double x, double y) const
 {
        /* how close the mouse has to be to the edge of the view rectangle to be considered `on it',
           in pixels */
-       int const edge_size = 8;
+
+       int x_edge_size = (_view_rectangle_x.second - _view_rectangle_x.first) / 4;
+       x_edge_size = min (x_edge_size, 8);
+       x_edge_size = max (x_edge_size, 1);
+
+       int y_edge_size = (_view_rectangle_y.second - _view_rectangle_y.first) / 4;
+       y_edge_size = min (y_edge_size, 8);
+       y_edge_size = max (y_edge_size, 1);
        
-       bool const near_left = (std::abs (x - _view_rectangle_x.first) < edge_size);
-       bool const near_right = (std::abs (x - _view_rectangle_x.second) < edge_size);
-       bool const near_top = (std::abs (y - _view_rectangle_y.first) < edge_size);
-       bool const near_bottom = (std::abs (y - _view_rectangle_y.second) < edge_size);
+       bool const near_left = (std::abs (x - _view_rectangle_x.first) < x_edge_size);
+       bool const near_right = (std::abs (x - _view_rectangle_x.second) < x_edge_size);
+       bool const near_top = (std::abs (y - _view_rectangle_y.first) < y_edge_size);
+       bool const near_bottom = (std::abs (y - _view_rectangle_y.second) < y_edge_size);
        bool const within_x = _view_rectangle_x.first < x && x < _view_rectangle_x.second;
        bool const within_y = _view_rectangle_y.first < y && y < _view_rectangle_y.second;