Merge pull request #8041 from 3nids/user_doc_auto_screenshots

Automatic creation of screenshots for user documentation

python/gui/auto_generated/qgisinterface.sip.in

@@ -598,6 +598,15 @@ used for interacting and adding widgets and messages to the app's
 status bar (do not use the native Qt statusBar() method).
 
 .. versionadded:: 3.0
+%End
+
+    virtual void takeAppScreenShots( const QString &saveDirectory, const int categories = 0 );
+%Docstring
+Take screenshots for user documentation
+@param saveDirectory path where the screenshots will be saved
+@param categories an int as a flag value of QgsAppScreenShots.Categories
+
+.. versionadded:: 3.4
 %End
 
   public slots: // TODO: do these functions really need to be slots?

src/app/CMakeLists.txt

@@ -13,6 +13,7 @@ SET(QGIS_APP_SRCS
   qgsappwindowmanager.cpp
   qgsaddattrdialog.cpp
   qgsaddtaborgroup.cpp
+  qgsappscreenshots.cpp
   qgsjoindialog.cpp
   qgsannotationwidget.cpp
   qgsattributeactiondialog.cpp
@@ -236,6 +237,7 @@ SET (QGIS_APP_MOC_HDRS
   qgsaddattrdialog.h
   qgsalignrasterdialog.h
   qgsappbrowserproviders.h
+  qgsappscreenshots.h
   qgsjoindialog.h
   qgsaddtaborgroup.h
   qgsannotationwidget.h
@@ -541,6 +543,10 @@ IF (PROJ_HAS_INFO)
   ADD_DEFINITIONS(-DPROJ_HAS_INFO)
 ENDIF (PROJ_HAS_INFO)
 
+# Test data dir for QgsAppScreenShots
+ADD_DEFINITIONS(-DTEST_DATA_DIR="${TEST_DATA_DIR}")
+
+
 SET(IMAGE_RCCS ../../images/images.qrc)
 
 QT5_ADD_RESOURCES(IMAGE_RCC_SRCS ${IMAGE_RCCS})

src/app/main.cpp

@@ -142,6 +142,8 @@ void usage( const QString &appName )
       << QStringLiteral( "\t[--dxf-scale-denom scale]\tscale for dxf output\n" )
       << QStringLiteral( "\t[--dxf-encoding encoding]\tencoding to use for dxf output\n" )
       << QStringLiteral( "\t[--dxf-map-theme maptheme]\tmap theme to use for dxf output\n" )
+      << QStringLiteral( "\t[--take-screenshots output_path]\ttake screen shots for the user documentation\n" )
+      << QStringLiteral( "\t[--screenshots-categories categories]\tspecify the categories of screenshot to be used (see QgsAppScreenShots::Categories).\n" )
       << QStringLiteral( "\t[--profile name]\tload a named profile from the users profiles folder.\n" )
       << QStringLiteral( "\t[--profiles-path path]\tpath to store user profile folders. Will create profiles inside a {path}\\profiles folder \n" )
       << QStringLiteral( "\t[--version-migration]\tforce the settings migration from older version if found\n" )
@@ -529,6 +531,10 @@ int main( int argc, char *argv[] )
   QString dxfMapTheme;
   QgsRectangle dxfExtent;
 
+  bool takeScreenShots = false;
+  QString screenShotsPath;
+  int screenShotsCategories = 0;
+
   // This behavior will set initial extent of map canvas, but only if
   // there are no command line arguments. This gives a usable map
   // extent when qgis starts with no layers loaded. When layers are
@@ -745,6 +751,15 @@ int main( int argc, char *argv[] )
         {
           dxfMapTheme = args[++i];
         }
+        else if ( arg == QLatin1String( "--take-screenshots" ) )
+        {
+          takeScreenShots = true;
+          screenShotsPath = args[++i];
+        }
+        else if ( arg == QLatin1String( "--screenshots-categories" ) )
+        {
+          screenShotsCategories = args[++i].toInt();
+        }
 #ifdef HAVE_OPENCL
         else if ( arg == QLatin1String( "--openclprogramfolder" ) )
         {
@@ -1233,7 +1248,7 @@ int main( int argc, char *argv[] )
   int h = 300 * qApp->desktop()->logicalDpiY() / 96;
 
   QSplashScreen *mypSplash = new QSplashScreen( myPixmap.scaled( w, h, Qt::KeepAspectRatio, Qt::SmoothTransformation ) );
-  if ( !myHideSplash && !settings.value( QStringLiteral( "qgis/hideSplash" ) ).toBool() )
+  if ( !takeScreenShots && !myHideSplash && !settings.value( QStringLiteral( "qgis/hideSplash" ) ).toBool() )
   {
     //for win and linux we can just automask and png transparency areas will be used
     mypSplash->setMask( myPixmap.mask() );
@@ -1457,6 +1472,11 @@ int main( int argc, char *argv[] )
 
 #endif
 
+  if ( takeScreenShots )
+  {
+    qgis->takeAppScreenShots( screenShotsPath, screenShotsCategories );
+  }
+
   /////////////////////////////////////////////////////////////////////
   // Continue on to interactive gui...
   /////////////////////////////////////////////////////////////////////

src/app/qgisapp.cpp

@@ -149,6 +149,7 @@ Q_GUI_EXPORT extern int qt_defaultDpiX();
 #include "qgsauthcertutils.h"
 #include "qgsauthsslerrorsdialog.h"
 #endif
+#include "qgsappscreenshots.h"
 #include "qgsbookmarks.h"
 #include "qgsbrowserdockwidget.h"
 #include "qgsadvanceddigitizingdockwidget.h"
@@ -10281,19 +10282,25 @@ QMap< QString, QString > QgisApp::optionsPagesMap()
   return mOptionsPagesMap;
 }
 
-void QgisApp::showOptionsDialog( QWidget *parent, const QString &currentPage )
+QgsOptions *QgisApp::createOptionsDialog( QWidget *parent )
 {
-  QgsSettings mySettings;
-  QString oldScales = mySettings.value( QStringLiteral( "Map/scales" ), PROJECT_SCALES ).toString();
-
   QList< QgsOptionsWidgetFactory * > factories;
   Q_FOREACH ( const QPointer< QgsOptionsWidgetFactory > &f, mOptionsWidgetFactories )
   {
     // remove any deleted factories
     if ( f )
       factories << f;
   }
-  std::unique_ptr< QgsOptions > optionsDialog( new QgsOptions( parent, QgsGuiUtils::ModalDialogFlags, factories ) );
+  return new QgsOptions( parent, QgsGuiUtils::ModalDialogFlags, factories );
+}
+
+void QgisApp::showOptionsDialog( QWidget *parent, const QString &currentPage )
+{
+  std::unique_ptr< QgsOptions > optionsDialog( createOptionsDialog( parent ) );
+
+  QgsSettings mySettings;
+  QString oldScales = mySettings.value( QStringLiteral( "Map/scales" ), PROJECT_SCALES ).toString();
+
   if ( !currentPage.isEmpty() )
   {
     optionsDialog->setCurrentPage( currentPage );
@@ -13062,6 +13069,12 @@ void QgisApp::zoomToBookmarkIndex( const QModelIndex &index )
   mBookMarksDockWidget->zoomToBookmarkIndex( index );
 }
 
+void QgisApp::takeAppScreenShots( const QString &saveDirectory, const int categories )
+{
+  QgsAppScreenShots ass( saveDirectory );
+  ass.takePicturesOf( QgsAppScreenShots::Categories( categories ) );
+}
+
 // Slot that gets called when the project file was saved with an older
 // version of QGIS
 

src/app/qgisapp.h

@@ -76,6 +76,7 @@ class QgsMapToolDigitizeFeature;
 class QgsMapToolAdvancedDigitizing;
 class QgsMapToolIdentifyAction;
 class QgsMapToolSelect;
+class QgsOptions;
 class QgsPluginLayer;
 class QgsPluginLayer;
 class QgsPluginManager;
@@ -696,6 +697,13 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     //! Returns pointer to the identify map tool - used by identify tool in 3D view
     QgsMapToolIdentifyAction *identifyMapTool() const { return mMapTools.mIdentify; }
 
+    /**
+     * Take screenshots for user documentation
+     * @param saveDirectory path were the screenshots will be saved
+     * @param categories an int as a flag value of QgsAppScreenShots::Categories
+     */
+    void takeAppScreenShots( const QString &saveDirectory, const int categories = 0 );
+
   public slots:
     //! save current vector layer
     void saveAsFile( QgsMapLayer *layer = nullptr, bool onlySelected = false );
@@ -1955,6 +1963,9 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     //! Populates project "load from" / "save to" menu based on project storages (when the menu is about to be shown)
     void populateProjectStorageMenu( QMenu *menu, bool saving );
 
+    //! Create the option dialog
+    QgsOptions *createOptionsDialog( QWidget *parent = nullptr );
+
     QgisAppStyleSheet *mStyleSheetBuilder = nullptr;
 
     // actions for menus and toolbars -----------------
@@ -2127,7 +2138,6 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
 
     //! interface to QgisApp for plugins
     QgisAppInterface *mQgisInterface = nullptr;
-    friend class QgisAppInterface;
 
     QSplashScreen *mSplash = nullptr;
     //! list of recently opened/saved project files
@@ -2294,6 +2304,8 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     bool mBlockActiveLayerChanged = false;
 
     friend class TestQgisAppPython;
+    friend class QgisAppInterface;
+    friend class QgsAppScreenShots;
 };
 
 #ifdef ANDROID

src/app/qgisappinterface.cpp

@@ -789,3 +789,8 @@ bool QgisAppInterface::askForDatumTransform( QgsCoordinateReferenceSystem source
 {
   return qgis->askUserForDatumTransform( sourceCrs, destinationCrs );
 }
+
+void QgisAppInterface::takeAppScreenShots( const QString &saveDirectory, const int categories )
+{
+  return qgis->takeAppScreenShots( saveDirectory, categories );
+}

src/app/qgisappinterface.h

@@ -551,6 +551,8 @@ class APP_EXPORT QgisAppInterface : public QgisInterface
 
     bool askForDatumTransform( QgsCoordinateReferenceSystem sourceCrs, QgsCoordinateReferenceSystem destinationCrs ) override;
 
+    void takeAppScreenShots( const QString &saveDirectory, const int categories = 0 ) override;
+
 
   private slots: