Improve performance when turning on the preview mode

[dolphin.git] / src / views / tooltips / tooltipmanager.cpp

diff --git a/src/views/tooltips/tooltipmanager.cpp b/src/views/tooltips/tooltipmanager.cpp
index 09e97861a4c6fd7f179dc95133401f386910d1f5..cb86b3355020e1c056cdc59dffec3ed4a461fcca 100644 (file)
--- a/src/views/tooltips/tooltipmanager.cpp
+++ b/src/views/tooltips/tooltipmanager.cpp
@@ -20,8 +20,10 @@
 #include "tooltipmanager.h"
 
 #include "filemetadatatooltip.h"
+#include <KConfigGroup>
 #include <KIcon>
 #include <KIO/PreviewJob>
+#include <KSharedConfig>
 
 #include <QApplication>
 #include <QDesktopWidget>
@@ -45,10 +47,11 @@ ToolTipManager::ToolTipManager(QAbstractItemView* parent,
     m_metaDataRequested(false),
     m_appliedWaitCursor(false),
     m_item(),
-    m_itemRect()
+    m_itemRect(),
+    m_enabledPlugins()
 {
     static FileMetaDataToolTip* sharedToolTip = 0;
-    if (sharedToolTip == 0) {
+    if (!sharedToolTip) {
         sharedToolTip = new FileMetaDataToolTip();
         // TODO: Using K_GLOBAL_STATIC would be preferable to maintain the
         // instance, but the cleanup of KFileMetaDataWidget at this stage does
@@ -168,7 +171,14 @@ void ToolTipManager::startContentRetrieval()
     // Request a preview of the item
     m_fileMetaDataToolTip->setPreview(QPixmap());
 
-    KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, 256, 256);
+    if (m_enabledPlugins.isEmpty()) {
+        const KConfigGroup globalConfig(KGlobal::config(), "PreviewSettings");
+        m_enabledPlugins = globalConfig.readEntry("Plugins", QStringList()
+                                                             << "directorythumbnail"
+                                                             << "imagethumbnail"
+                                                             << "jpegthumbnail");
+    }
+    KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, 256, 256, true, true, &m_enabledPlugins);
 
     connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
             this, SLOT(setPreviewPix(const KFileItem&, const QPixmap&)));