transcoder: Add ability to dump pipeline graphs

Add a "Dump Graph" menu option to the pipeline view if CLEMENTINE_DEBUG
is enabled.

src/transcoder/transcodedialog.cpp

@@ -17,6 +17,7 @@
 
 #include "transcodedialog.h"
 
+#include <QAction>
 #include <QDateTime>
 #include <QDirIterator>
 #include <QFileDialog>
@@ -24,6 +25,7 @@
 #include <QSettings>
 #include <algorithm>
 
+#include "core/application.h"
 #include "transcoder.h"
 #include "transcoderoptionsdialog.h"
 #include "ui/iconloader.h"
@@ -59,11 +61,18 @@ TranscodeDialog::TranscodeDialog(QWidget* parent)
   ui_->files->header()->setSectionResizeMode(QHeaderView::ResizeToContents);
 
   details_ui_->setupUi(details_dialog_);
-  details_ui_->pipelines->setModel(transcoder_->model());
+  details_ui_->pipelines->setPipelineModel(transcoder_->model());
   QPushButton* clear_button = details_ui_->buttonBox->addButton(
       tr("Clear"), QDialogButtonBox::ResetRole);
   connect(clear_button, SIGNAL(clicked()), details_ui_->log, SLOT(clear()));
 
+  if (Application::DebugFeaturesEnabled()) {
+    QAction* dump_action = new QAction(tr("Dump Graph"));
+    details_ui_->pipelines->addAction(dump_action);
+    connect(dump_action, SIGNAL(triggered(bool)),
+            SLOT(PipelineDumpAction(bool)));
+  }
+
   // Get presets
   QList<TranscoderPreset> presets = Transcoder::GetAllPresets();
   std::sort(presets.begin(), presets.end(), ComparePresetsByName);
@@ -180,6 +189,12 @@ void TranscodeDialog::Cancel() {
   SetWorking(false);
 }
 
+void TranscodeDialog::PipelineDumpAction(bool checked) {
+  for (int i : details_ui_->pipelines->GetSelectedIds()) {
+    transcoder_->DumpGraph(i);
+  }
+}
+
 void TranscodeDialog::JobComplete(const QString& input, const QString& output,
                                   bool success) {
   if (success)

src/transcoder/transcodedialog.h

@@ -56,6 +56,7 @@ class TranscodeDialog : public QDialog {
   void AllJobsComplete();
   void Options();
   void AddDestination();
+  void PipelineDumpAction(bool checked);
 
  private:
   void SetWorking(bool working);

src/transcoder/transcodelogdialog.ui

@@ -31,13 +31,16 @@
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_3">
       <item>
-       <widget class="QListView" name="pipelines">
+       <widget class="PipelineView" name="pipelines">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
+        <property name="contextMenuPolicy">
+         <enum>Qt::ActionsContextMenu</enum>
+        </property>
        </widget>
       </item>
      </layout>
@@ -80,6 +83,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>PipelineView</class>
+   <extends>QListView</extends>
+   <header>engines/pipelineview.h</header>
+  </customwidget>
+ </customwidgets>
  <resources>
   <include location="../../data/data.qrc"/>
  </resources>

src/transcoder/transcoder.cpp

@@ -541,6 +541,15 @@ void Transcoder::Cancel() {
   }
 }
 
+void Transcoder::DumpGraph(int id) {
+  for (JobStateList::iterator it = current_jobs_.begin();
+       it != current_jobs_.end(); it++) {
+    if ((*it)->id() == id) {
+      (*it)->DumpGraph();
+    }
+  }
+}
+
 QMap<QString, float> Transcoder::GetProgress() const {
   QMap<QString, float> ret;
 

src/transcoder/transcoder.h

@@ -67,6 +67,7 @@ class Transcoder : public QObject {
 
   void Start();
   void Cancel();
+  void DumpGraph(int id);
 
  signals:
   void JobComplete(const QString& input, const QString& output, bool success);