Add combo box for fast search engine switch

src/searchengine/search.ui

@@ -19,6 +19,9 @@
      <item>
       <widget class="QComboBox" name="comboCategory"/>
      </item>
+     <item>
+      <widget class="QComboBox" name="selectEngine"/>
+     </item>
      <item>
       <widget class="QPushButton" name="search_button">
        <property name="maximumSize">

src/searchengine/searchengine.cpp

@@ -92,8 +92,10 @@ SearchEngine::SearchEngine(MainWindow* parent)
     supported_engines = new SupportedEngines();
     // Fill in category combobox
     fillCatCombobox();
+    fillEngineComboBox();
 
     connect(search_pattern, SIGNAL(textEdited(QString)), this, SLOT(searchTextEdited(QString)));
+    connect(selectEngine, SIGNAL(currentIndexChanged(const QString&)), this, SLOT(selectMultipleBox(const QString&)));
 }
 
 void SearchEngine::fillCatCombobox() {
@@ -106,10 +108,23 @@ void SearchEngine::fillCatCombobox() {
   }
 }
 
+void SearchEngine::fillEngineComboBox() {
+    selectEngine->clear();
+    selectEngine->addItem("All enabled", QVariant("enabled"));
+    selectEngine->addItem("All engines", QVariant("all"));
+    foreach (QString engi, supported_engines->enginesEnabled())
+        selectEngine->addItem(engi, QVariant(engi));
+    selectEngine->addItem("Multiple...", QVariant("multi"));
+}
+
 QString SearchEngine::selectedCategory() const {
     return comboCategory->itemData(comboCategory->currentIndex()).toString();
 }
 
+QString SearchEngine::selectedEngine() const {
+    return selectEngine->itemData(selectEngine->currentIndex()).toString();
+}
+
 SearchEngine::~SearchEngine() {
     qDebug("Search destruction");
     searchProcess->kill();
@@ -131,21 +146,26 @@ SearchEngine::~SearchEngine() {
 void SearchEngine::tab_changed(int t)
 {//when we switch from a tab that is not empty to another that is empty the download button
   //doesn't have to be available
-  if (t>-1)
-  {//-1 = no more tab
+    if (t>-1) {//-1 = no more tab
         if (all_tab.at(tabWidget->currentIndex())->getCurrentSearchListModel()->rowCount()) {
             download_button->setEnabled(true);
             goToDescBtn->setEnabled(true);
-    } else {
+        }
+        else {
             download_button->setEnabled(false);
             goToDescBtn->setEnabled(false);
         }
     }
 }
 
+void SearchEngine::selectMultipleBox(const QString &text) {
+    if (text == "Multiple...") on_enginesButton_clicked();
+}
+
 void SearchEngine::on_enginesButton_clicked() {
     engineSelectDlg *dlg = new engineSelectDlg(this, supported_engines);
     connect(dlg, SIGNAL(enginesChanged()), this, SLOT(fillCatCombobox()));
+    connect(dlg, SIGNAL(enginesChanged()), this, SLOT(fillEngineComboBox()));
 }
 
 void SearchEngine::searchTextEdited(QString) {
@@ -185,7 +205,7 @@ void SearchEngine::on_search_button_clicked() {
         return;
     }
     // Tab Addition
-  currentSearchTab=new SearchTab(this);
+    currentSearchTab = new SearchTab(this);
     connect(currentSearchTab->header(), SIGNAL(sectionResized(int, int, int)), this, SLOT(propagateSectionResized(int,int,int)));
     all_tab.append(currentSearchTab);
     QString tabName = pattern;
@@ -197,7 +217,10 @@ void SearchEngine::on_search_button_clicked() {
     QStringList params;
     search_stopped = false;
     params << fsutils::toNativePath(fsutils::searchEngineLocation() + "/nova2.py");
-  params << supported_engines->enginesEnabled().join(",");
+    if (selectedEngine() == "all") params << supported_engines->enginesAll().join(",");
+    else if (selectedEngine() == "enabled") params << supported_engines->enginesEnabled().join(",");
+    else if (selectedEngine() == "multi") params << supported_engines->enginesEnabled().join(",");
+    else params << selectedEngine();
     qDebug("Search with category: %s", qPrintable(selectedCategory()));
     params << selectedCategory();
     params << pattern.split(" ");
@@ -231,6 +254,7 @@ void SearchEngine::saveResultsColumnsWidth() {
         if (!line.isEmpty()) {
             width_list = line.split(' ');
         }
+
         for (short i=0; i<nbColumns; ++i) {
             if (treeview->columnWidth(i)<1 && width_list.size() == nbColumns && width_list.at(i).toInt()>=1) {
                 // load the former width
@@ -428,6 +452,7 @@ void SearchEngine::searchFinished(int exitcode,QProcess::ExitStatus) {
             }
         }
     }
+
     if (currentSearchTab)
         currentSearchTab->getCurrentLabel()->setText(tr("Results", "i.e: Search results")+QString::fromUtf8(" <i>(")+QString::number(nb_search_results)+QString::fromUtf8(")</i>:"));
     search_button->setText(tr("Search"));

src/searchengine/searchengine.h

@@ -60,6 +60,7 @@ public:
   SearchEngine(MainWindow *mp_mainWindow);
   ~SearchEngine();
   QString selectedCategory() const;
+  QString selectedEngine() const;
 
   static qreal getPluginVersion(QString filePath) {
     QFile plugin(filePath);
@@ -98,11 +99,13 @@ protected slots:
   void readSearchOutput();
   void searchStarted();
   void updateNova();
+  void selectMultipleBox(const QString &text);
   void on_enginesButton_clicked();
   void propagateSectionResized(int index, int oldsize , int newsize);
   void saveResultsColumnsWidth();
   void downloadFinished(int exitcode, QProcess::ExitStatus);
   void fillCatCombobox();
+  void fillEngineComboBox();
   void searchTextEdited(QString);
 
 private slots:

src/searchengine/supportedengines.h

@@ -113,6 +113,12 @@ public:
     qDeleteAll(this->values());
   }
 
+  QStringList enginesAll() const {
+    QStringList engines;
+    foreach (const SupportedEngine *engine, values()) engines << engine->getName();
+    return engines;
+  }
+
   QStringList enginesEnabled() const {
     QStringList engines;
     foreach (const SupportedEngine *engine, values()) {