From 43347839feb2bd83cac3306a4771dc97df37d804 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Mardelle <jb@kdenlive.org>
Date: Tue, 4 Mar 2008 09:38:34 +0000
Subject: [PATCH] Only create audio thumbs when they are enabled, clear cache
 when disabled

svn path=/branches/KDE4/; revision=1996
---
 src/clipmanager.cpp | 10 ++++++++++
 src/clipmanager.h   |  2 ++
 src/docclipbase.cpp |  5 +++++
 src/docclipbase.h   |  2 ++
 src/mainwindow.cpp  |  2 ++
 src/projectitem.cpp |  4 ++--
 6 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/src/clipmanager.cpp b/src/clipmanager.cpp
index 57f1066b..2dd72625 100644
--- a/src/clipmanager.cpp
+++ b/src/clipmanager.cpp
@@ -26,11 +26,21 @@
 
 ClipManager::ClipManager(KdenliveDoc *doc): m_doc(doc) {
     m_clipIdCounter = 1;
+    m_audioThumbsEnabled = KdenliveSettings::audiothumbnails();
 }
 
 ClipManager::~ClipManager() {
 }
 
+void ClipManager::checkAudioThumbs() {
+    if (m_audioThumbsEnabled == KdenliveSettings::audiothumbnails()) return;
+    m_audioThumbsEnabled = KdenliveSettings::audiothumbnails();
+    for (int i = 0; i < m_clipList.count(); i++) {
+        if (m_audioThumbsEnabled) m_clipList.at(i)->slotRequestAudioThumbs();
+        else m_clipList.at(i)->slotClearAudioCache();
+    }
+}
+
 void ClipManager::setThumbsProgress(KUrl url, int progress) {
     m_doc->setThumbsProgress(url, progress);
 }
diff --git a/src/clipmanager.h b/src/clipmanager.h
index fece4ee5..138c3ffb 100644
--- a/src/clipmanager.h
+++ b/src/clipmanager.h
@@ -53,6 +53,7 @@ Q_OBJECT public:
     DocClipBase *getClipById(int clipId);
     void slotDeleteClip(uint clipId);
     void setThumbsProgress(KUrl url, int progress);
+    void checkAudioThumbs();
 
 private:   // Private attributes
     /** the list of clips in the document */
@@ -60,6 +61,7 @@ private:   // Private attributes
     /** the document undo stack*/
     KdenliveDoc *m_doc;
     int m_clipIdCounter;
+    bool m_audioThumbsEnabled;
 
 };
 
diff --git a/src/docclipbase.cpp b/src/docclipbase.cpp
index 42bcd3b6..47006dcf 100644
--- a/src/docclipbase.cpp
+++ b/src/docclipbase.cpp
@@ -74,6 +74,11 @@ void DocClipBase::slotRequestAudioThumbs() {
     emit getAudioThumbs();
 }
 
+void DocClipBase::slotClearAudioCache() {
+    audioFrameChache.clear();
+    m_audioThumbCreated = false;
+}
+
 KThumb *DocClipBase::thumbProducer() {
     return m_thumbProd;
 }
diff --git a/src/docclipbase.h b/src/docclipbase.h
index 0c422332..0654a58b 100644
--- a/src/docclipbase.h
+++ b/src/docclipbase.h
@@ -200,6 +200,8 @@ Q_OBJECT public:
 
     /** Clip is ready to get thumbs */
     void slotRequestAudioThumbs();
+    /** Free cache data */
+    void slotClearAudioCache();
 
 
 private:   // Private attributes
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index c625a1d9..5710622e 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -493,10 +493,12 @@ void MainWindow::slotPreferences() {
 }
 
 void MainWindow::updateConfiguration() {
+    //TODO: we should apply settings to all projects, not only the current one
     TrackView *currentTab = (TrackView *) m_timelineArea->currentWidget();
     if (currentTab) {
         currentTab->refresh();
         currentTab->projectView()->checkAutoScroll();
+        if (m_activeDocument) m_activeDocument->clipManager()->checkAudioThumbs();
     }
 }
 
diff --git a/src/projectitem.cpp b/src/projectitem.cpp
index f93c84c3..d861ef5c 100644
--- a/src/projectitem.cpp
+++ b/src/projectitem.cpp
@@ -30,7 +30,7 @@
 
 #include "projectitem.h"
 #include "timecode.h"
-
+#include "kdenlivesettings.h"
 
 const int NameRole = Qt::UserRole;
 const int DurationRole = NameRole + 1;
@@ -222,7 +222,7 @@ void ProjectItem::setProperties(const QMap < QString, QString > &attributes, con
     m_element.setAttribute("resource", attributes["filename"]);
     m_element.setAttribute("type", (int) m_clipType);
 
-    m_clip->slotRequestAudioThumbs();
+    if (KdenliveSettings::audiothumbnails()) m_clip->slotRequestAudioThumbs();
     /*
      if (attributes.contains("height")) {
          m_height = attributes["height"].toInt();
-- 
2.39.2