Mercurial > hg > svgui

diff view/Pane.cpp @ 192:fcc043f75c41
* Avoid unnecessary work and updates when an invisible thumbwheel changes
author: Chris Cannam
date: Wed, 24 Jan 2007 17:14:24 +0000
parents: 5b7472db612b
children: 942cfa1df966
--- a/view/Pane.cpp	Mon Jan 22 16:09:03 2007 +0000
+++ b/view/Pane.cpp	Wed Jan 24 17:14:24 2007 +0000
@@ -62,6 +62,8 @@
 {
     Profiler profiler("Pane::updateHeadsUpDisplay", true);
 
+    if (!isVisible()) return;
+
 /*
     int count = 0;
     int currentLevel = 1;
@@ -1591,6 +1593,9 @@
 void
 Pane::zoomLevelChanged()
 {
+    std::cerr << "Pane[" << this << "]::zoomLevelChanged (global now "
+              << (m_manager ? m_manager->getGlobalZoom() : 0) << ")" << std::endl;
+
     if (m_manager && m_manager->getZoomWheelsEnabled()) {
         updateHeadsUpDisplay();
     }