From bdd4fa1c0d03b48e2e34aa4cd8a175722310c695 Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <tsdgeos@terra.es>
Date: Sat, 3 May 2008 12:34:49 +0000
Subject: [PATCH] make sure we keep next and previous pages if we are on
 aggresive mode

svn path=/trunk/KDE/kdegraphics/okular/; revision=803592
---
 ui/presentationwidget.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/ui/presentationwidget.cpp b/ui/presentationwidget.cpp
index 30d754832..5a54f9b81 100644
--- a/ui/presentationwidget.cpp
+++ b/ui/presentationwidget.cpp
@@ -295,8 +295,16 @@ void PresentationWidget::notifyPageChanged( int pageNumber, int changedFlags )
 
 bool PresentationWidget::canUnloadPixmap( int pageNumber ) const
 {
-    // can unload all pixmaps except for the currently visible one
-    return pageNumber != m_frameIndex;
+    if ( Okular::Settings::memoryLevel() != Okular::Settings::EnumMemoryLevel::Aggressive )
+    {
+        // can unload all pixmaps except for the currently visible one
+        return pageNumber != m_frameIndex;
+    }
+    else
+    {
+        // can unload all pixmaps except for the currently visible one, previous and next
+        return qAbs(pageNumber - m_frameIndex) <= 1;
+    }
 }
 
 void PresentationWidget::setupActions( KActionCollection * collection )