From 6ad82e5cee925ef09193cec3c0805a54b026adb6 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Mardelle <jb@kdenlive.org>
Date: Sun, 3 Jan 2010 21:39:19 +0000
Subject: [PATCH] Only enable relevant transcoding actions

svn path=/trunk/kdenlive/; revision=4199
---
 src/projectlist.cpp | 38 ++++++++++++++++++++++++++++++++++----
 src/projectlist.h   |  1 +
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/src/projectlist.cpp b/src/projectlist.cpp
index b61b8ca1..0f40dcc9 100644
--- a/src/projectlist.cpp
+++ b/src/projectlist.cpp
@@ -390,21 +390,24 @@ void ProjectList::slotClipSelected()
                 if (clip == NULL) kDebug() << "-----------ERROR";
                 SubProjectItem *sub = static_cast <SubProjectItem*>(m_listView->currentItem());
                 emit clipSelected(clip->referencedClip(), sub->zone());
+                m_transcodeAction->setEnabled(false);
                 return;
             }
             clip = static_cast <ProjectItem*>(m_listView->currentItem());
-            emit clipSelected(clip->referencedClip());
+            if (clip) emit clipSelected(clip->referencedClip());
             m_editAction->setEnabled(true);
             m_deleteAction->setEnabled(true);
             m_reloadAction->setEnabled(true);
             m_transcodeAction->setEnabled(true);
-            if (clip->clipType() == IMAGE && !KdenliveSettings::defaultimageapp().isEmpty()) {
+            if (clip && clip->clipType() == IMAGE && !KdenliveSettings::defaultimageapp().isEmpty()) {
                 m_openAction->setIcon(KIcon(KdenliveSettings::defaultimageapp()));
                 m_openAction->setEnabled(true);
-            } else if (clip->clipType() == AUDIO && !KdenliveSettings::defaultaudioapp().isEmpty()) {
+            } else if (clip && clip->clipType() == AUDIO && !KdenliveSettings::defaultaudioapp().isEmpty()) {
                 m_openAction->setIcon(KIcon(KdenliveSettings::defaultaudioapp()));
                 m_openAction->setEnabled(true);
             } else m_openAction->setEnabled(false);
+            // Display relevant transcoding actions only
+            adjustTranscodeActions(clip);
         }
     } else {
         emit clipSelected(NULL);
@@ -416,6 +419,27 @@ void ProjectList::slotClipSelected()
     }
 }
 
+void ProjectList::adjustTranscodeActions(ProjectItem *clip) const
+{
+    if (clip == NULL || clip->type() != PROJECTCLIPTYPE || clip->clipType() == COLOR || clip->clipType() == TEXT || clip->clipType() == PLAYLIST) {
+        m_transcodeAction->setEnabled(false);
+        return;
+    }
+    m_transcodeAction->setEnabled(true);
+    QList<QAction *> transcodeActions = m_transcodeAction->actions();
+    QStringList data;
+    QString condition;
+    for (int i = 0; i < transcodeActions.count(); i++) {
+        data = transcodeActions.at(i)->data().toStringList();
+        if (data.count() > 2) {
+            condition = data.at(2);
+            if (condition.startsWith("vcodec")) transcodeActions.at(i)->setEnabled(clip->referencedClip()->hasVideoCodec(condition.section("=", 1, 1)));
+            else if (condition.startsWith("acodec")) transcodeActions.at(i)->setEnabled(clip->referencedClip()->hasVideoCodec(condition.section("=", 1, 1)));
+        }
+    }
+
+}
+
 void ProjectList::slotPauseMonitor()
 {
     if (m_render) m_render->pause();
@@ -536,7 +560,12 @@ void ProjectList::slotContextMenu(const QPoint &pos, QTreeWidgetItem *item)
         ProjectItem *clip = NULL;
         if (m_listView->currentItem()->type() == PROJECTSUBCLIPTYPE) {
             clip = static_cast <ProjectItem*>(item->parent());
-        } else if (m_listView->currentItem()->type() == PROJECTCLIPTYPE) clip = static_cast <ProjectItem*>(item);
+            m_transcodeAction->setEnabled(false);
+        } else if (m_listView->currentItem()->type() == PROJECTCLIPTYPE) {
+            clip = static_cast <ProjectItem*>(item);
+            // Display relevant transcoding actions only
+            adjustTranscodeActions(clip);
+        } else m_transcodeAction->setEnabled(false);
         if (clip && clip->clipType() == IMAGE && !KdenliveSettings::defaultimageapp().isEmpty()) {
             m_openAction->setIcon(KIcon(KdenliveSettings::defaultimageapp()));
             m_openAction->setEnabled(true);
@@ -544,6 +573,7 @@ void ProjectList::slotContextMenu(const QPoint &pos, QTreeWidgetItem *item)
             m_openAction->setIcon(KIcon(KdenliveSettings::defaultaudioapp()));
             m_openAction->setEnabled(true);
         } else m_openAction->setEnabled(false);
+
     } else m_openAction->setEnabled(false);
     m_menu->popup(pos);
 }
diff --git a/src/projectlist.h b/src/projectlist.h
index 2a1a03d5..55ceaafc 100644
--- a/src/projectlist.h
+++ b/src/projectlist.h
@@ -204,6 +204,7 @@ private:
     QStringList getGroup() const;
     void regenerateTemplate(ProjectItem *clip);
     void editClipSelection(QList<QTreeWidgetItem *> list);
+    void adjustTranscodeActions(ProjectItem *clip) const;
 
 private slots:
     void slotClipSelected();
-- 
2.39.2