Don't allow filters to be added when no producer is loaded

mltframework · Oct 25, 2014 · 6c437fa · 6c437fa
1 parent 2f010d2
commit 6c437fa
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Showing 3 changed files with 11 additions and 0 deletions.
diff --git a/src/models/attachedfiltersmodel.cpp b/src/models/attachedfiltersmodel.cpp
@@ -31,6 +31,11 @@ AttachedFiltersModel::AttachedFiltersModel(QObject *parent)
 {
 }
 
+bool AttachedFiltersModel::isReady()
+{
+    return m_producer != NULL;
+}
+
 void AttachedFiltersModel::calculateRows()
 {
     m_rows =-0;
@@ -267,4 +272,5 @@ void AttachedFiltersModel::reset(Mlt::Producer* producer)
     m_producer.reset(new Mlt::Producer(producer? producer : MLT.producer()));
     calculateRows();
     endResetModel();
+    emit readyChanged();
 }
diff --git a/src/models/attachedfiltersmodel.h b/src/models/attachedfiltersmodel.h
@@ -26,9 +26,11 @@
 class AttachedFiltersModel : public QAbstractListModel
 {
     Q_OBJECT
+    Q_PROPERTY(bool ready READ isReady NOTIFY readyChanged)
 public:
     explicit AttachedFiltersModel(QObject *parent = 0);
 
+    bool isReady();
     Mlt::Filter* filterForRow(int row) const;
     int indexForRow(int row) const;
     int rowCount(const QModelIndex &parent = QModelIndex()) const;
@@ -43,6 +45,7 @@ class AttachedFiltersModel : public QAbstractListModel
 
 signals:
     void changed(bool modified = true);
+    void readyChanged();
 
 public slots:
     Mlt::Filter* add(const QString& mlt_service, const QString& shotcutName = QString());

diff --git a/src/qml/views/filter/filterview.qml b/src/qml/views/filter/filterview.qml
@@ -73,6 +73,8 @@ Rectangle {
             id: addButton
             Layout.minimumWidth: height
             iconName: 'list-add'
+            enabled: attachedfiltersmodel.ready
+            opacity: enabled ? 1.0 : 0.5
             tooltip: qsTr('Add a Filter')
             onClicked: filterMenu.popup(addButton)
         }