[processing] Add a 'New Model' action to model designer dialog

The dialog had all the standard open/save/save as actions, but was missing the ability to directly create a new model within the dialog itself.
qgis · Feb 7, 2022 · b8cd9c1 · b8cd9c1
1 parent 8f34557
commit b8cd9c1
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Showing 3 changed files with 23 additions and 0 deletions.
diff --git a/src/gui/processing/models/qgsmodeldesignerdialog.cpp b/src/gui/processing/models/qgsmodeldesignerdialog.cpp
@@ -134,6 +134,7 @@ QgsModelDesignerDialog::QgsModelDesignerDialog( QWidget *parent, Qt::WindowFlags
   QgsSettings settings;
 
   connect( mActionClose, &QAction::triggered, this, &QWidget::close );
+  connect( mActionNew, &QAction::triggered, this, &QgsModelDesignerDialog::newModel );
   connect( mActionZoomIn, &QAction::triggered, this, &QgsModelDesignerDialog::zoomIn );
   connect( mActionZoomOut, &QAction::triggered, this, &QgsModelDesignerDialog::zoomOut );
   connect( mActionZoomActual, &QAction::triggered, this, &QgsModelDesignerDialog::zoomActual );
@@ -636,6 +637,16 @@ void QgsModelDesignerDialog::zoomFull()
   mView->fitInView( totalRect, Qt::KeepAspectRatio );
 }
 
+void QgsModelDesignerDialog::newModel()
+{
+  if ( !checkForUnsavedChanges() )
+    return;
+
+  std::unique_ptr< QgsProcessingModelAlgorithm > alg = std::make_unique< QgsProcessingModelAlgorithm >();
+  alg->setProvider( QgsApplication::processingRegistry()->providerById( QStringLiteral( "model" ) ) );
+  setModel( alg.release() );
+}
+
 void QgsModelDesignerDialog::exportToImage()
 {
   QString filename = QFileDialog::getSaveFileName( this, tr( "Save Model as Image" ), tr( "PNG files (*.png *.PNG)" ) );

diff --git a/src/gui/processing/models/qgsmodeldesignerdialog.h b/src/gui/processing/models/qgsmodeldesignerdialog.h
@@ -170,6 +170,7 @@ class GUI_EXPORT QgsModelDesignerDialog : public QMainWindow, public Ui::QgsMode
     void zoomOut();
     void zoomActual();
     void zoomFull();
+    void newModel();
     void exportToImage();
     void exportToPdf();
     void exportToSvg();

diff --git a/src/ui/processing/qgsmodeldesignerdialogbase.ui b/src/ui/processing/qgsmodeldesignerdialogbase.ui
@@ -62,6 +62,7 @@
     <addaction name="mActionRun"/>
     <addaction name="mActionReorderInputs"/>
     <addaction name="separator"/>
+    <addaction name="mActionNew"/>
     <addaction name="mActionOpen"/>
     <addaction name="mActionSave"/>
     <addaction name="mActionSaveAs"/>
@@ -112,6 +113,7 @@
    <attribute name="toolBarBreak">
     <bool>false</bool>
    </attribute>
+   <addaction name="mActionNew"/>
    <addaction name="mActionOpen"/>
    <addaction name="mActionSave"/>
    <addaction name="mActionSaveAs"/>
@@ -745,6 +747,15 @@
     <string>V</string>
    </property>
   </action>
+  <action name="mActionNew">
+   <property name="icon">
+    <iconset resource="../../../images/images.qrc">
+     <normaloff>:/images/themes/default/mActionFileNew.svg</normaloff>:/images/themes/default/mActionFileNew.svg</iconset>
+   </property>
+   <property name="text">
+    <string>New Model…</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>