Mercurial > hg > svgui

changeset 967:faa8532e4f02

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Fix arithmetic precedence misreading goof which led to scrolling the wrong way when dragging past the right edge
author Chris Cannam
date Thu, 21 May 2015 14:41:28 +0100
parents e297b7d752f2
children 4d54882bbf73
files view/Pane.cpp
diffstat 1 files changed, 6 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/view/Pane.cpp	Thu May 21 14:06:20 2015 +0100
+++ b/view/Pane.cpp	Thu May 21 14:41:28 2015 +0100
@@ -2152,11 +2152,12 @@
         sv_frame_t offset = mouseFrame - getStartFrame();
         sv_frame_t available = getEndFrame() - getStartFrame();
         sv_frame_t move = 0;
-        if (offset >= double(available) * 0.95) {
-            move = sv_frame_t(double(offset - available) * 0.95) + 1;
-        } else if (offset <= double(available) * 0.10) {
-            move = sv_frame_t(double(available) * 0.10 - double(offset)) + 1;
-            move = -move;
+        sv_frame_t rightEdge = available - (available / 20);
+        sv_frame_t leftEdge = (available / 10);
+        if (offset >= rightEdge) {
+            move = offset - rightEdge + 1;
+        } else if (offset <= leftEdge) {
+            move = offset - leftEdge - 1;
         }
         if (move != 0) {
             setCentreFrame(m_centreFrame + move);