From: vsr <vsr@opencascade.com>
Date: Tue, 24 Nov 2020 08:31:42 +0000 (+0300)
Subject: Emit a signal and propagate it to the active module when panel is shown
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=refs%2Fheads%2Fvuzlov%2F20215;p=modules%2Fgui.git

Emit a signal and propagate it to the active module when panel is shown
---

diff --git a/doc/salome/gui/input/using_help_panel.rst b/doc/salome/gui/input/using_help_panel.rst
index 20f8d1a9b..9321a3d20 100644
--- a/doc/salome/gui/input/using_help_panel.rst
+++ b/doc/salome/gui/input/using_help_panel.rst
@@ -165,3 +165,12 @@ For Python modules, *Help panel* can be accessed via the ``SalomePyQt`` Python m
 
     # Clear Help panel
     sg.infoClear()
+
+.. _hp_update_panel
+
+Notifications
+=============
+
+Each time when *Help panel* is shown, currently active module is informed via
+the virtual method ``updateInfoPanel()``. This method can be used to properly
+update the contents of the *Help panel*, depending on the current context.
diff --git a/src/LightApp/LightApp_Application.cxx b/src/LightApp/LightApp_Application.cxx
index 72b13bda9..1f57055cf 100644
--- a/src/LightApp/LightApp_Application.cxx
+++ b/src/LightApp/LightApp_Application.cxx
@@ -1388,6 +1388,7 @@ void LightApp_Application::insertDockWindow( const int id, QWidget* wid )
     // It is not movable and not floatable.
     dock->setAllowedAreas( Qt::RightDockWidgetArea );
     dock->setFeatures( QDockWidget::DockWidgetClosable );
+    connect( dock, SIGNAL( aboutToShow()), this, SLOT( onInfoPanelShown() ) );
   }
   else {
     dock->setFeatures( QDockWidget::AllDockWidgetFeatures );
@@ -5079,6 +5080,12 @@ void LightApp_Application::onDesktopMessage( const QString& message )
   }
 }
 
+void LightApp_Application::onInfoPanelShown()
+{
+  if ( activeModule() && activeModule()->inherits( "LightApp_Module" ) )
+    ((LightApp_Module*)activeModule())->updateInfoPanel();
+}
+
 /*!
   Internal method. 
   Returns all top level toolbars.
diff --git a/src/LightApp/LightApp_Application.h b/src/LightApp/LightApp_Application.h
index 8f15d63b0..da8ffc266 100644
--- a/src/LightApp/LightApp_Application.h
+++ b/src/LightApp/LightApp_Application.h
@@ -270,6 +270,8 @@ protected slots:
 
   virtual void                        onDesktopMessage( const QString& );
 
+  virtual void                        onInfoPanelShown();
+
 private slots:
   void                                onSelection();
   void                                onRefresh();
diff --git a/src/LightApp/LightApp_Module.cxx b/src/LightApp/LightApp_Module.cxx
index da1d8a70c..9373ae2ee 100644
--- a/src/LightApp/LightApp_Module.cxx
+++ b/src/LightApp/LightApp_Module.cxx
@@ -315,6 +315,11 @@ void LightApp_Module::MenuItem()
 {
 }
 
+/*!NOT IMPLEMENTED*/
+void LightApp_Module::updateInfoPanel()
+{
+}
+
 /*!NOT IMPLEMENTED*/
 void LightApp_Module::createPreferences()
 {
diff --git a/src/LightApp/LightApp_Module.h b/src/LightApp/LightApp_Module.h
index 31222c615..94fd9396f 100644
--- a/src/LightApp/LightApp_Module.h
+++ b/src/LightApp/LightApp_Module.h
@@ -117,6 +117,8 @@ public slots:
 
   void                                MenuItem();
 
+  virtual void                        updateInfoPanel();
+
 protected slots:
   virtual void                        onModelSaved();
   virtual void                        onModelOpened();
diff --git a/src/Qtx/QtxDockWidget.cxx b/src/Qtx/QtxDockWidget.cxx
index fc9827654..4bb125b31 100644
--- a/src/Qtx/QtxDockWidget.cxx
+++ b/src/Qtx/QtxDockWidget.cxx
@@ -376,13 +376,7 @@ QtxDockWidget::~QtxDockWidget()
 */
 QSize QtxDockWidget::sizeHint() const
 {
-  QSize sz = QDockWidget::sizeHint();
-
-  // printf( "----------------> QtxDockWidget::sizeHint()\n" );
-
   return QSize( 500, 100 );
-
-  return sz;
 }
 
 /*!
@@ -391,9 +385,7 @@ QSize QtxDockWidget::sizeHint() const
 */
 QSize QtxDockWidget::minimumSizeHint() const
 {
-  QSize sz = QDockWidget::minimumSizeHint();
-
-  return sz;
+  return QDockWidget::minimumSizeHint();
 }
 
 /*!
@@ -415,6 +407,9 @@ void QtxDockWidget::setVisible( bool on )
     else
       myWatcher->hidden( this );
   }
+
+  if ( on )
+    emit( aboutToShow() );
 }
 
 /*!
diff --git a/src/Qtx/QtxDockWidget.h b/src/Qtx/QtxDockWidget.h
index 53ecbb61f..048a9e64d 100644
--- a/src/Qtx/QtxDockWidget.h
+++ b/src/Qtx/QtxDockWidget.h
@@ -49,6 +49,7 @@ public:
 
 signals:
   void            orientationChanged( Qt::Orientation );
+  void            aboutToShow();
 
 public slots:
   virtual void    setVisible( bool );