refs #335, support for status bar for dock widgets

* status bar when floating * improved info area status * removed ui parts from infoarea
2026-04-04 16:56:53 +08:00 · 2014-11-05 20:13:47 +01:00
parent 718965d78d
commit 8acf8e2ed0
10 changed files with 231 additions and 80 deletions
--- a/src/blackgui/components/cockpitcomponent.cpp
+++ b/src/blackgui/components/cockpitcomponent.cpp
@@ -67,10 +67,8 @@ namespace BlackGui
            {
                if (!this->m_sizeFloatingShown.isValid())
                {
-                    // minimumSizeHint() not as good as expected
+                    // manually setting size, all other approaches failed
                    QSize m(300, 400);
-                    this->setMinimumSize(m);
-                    this->window()->setMinimumSize(m);
                    this->window()->resize(m);
                    this->m_sizeFloatingShown = this->window()->size();
                }
@@ -78,6 +76,7 @@ namespace BlackGui
                {
                    this->window()->resize(m_sizeFloatingShown);
                }
+
                if (this->m_sizeFloatingHidden.isValid())
                {
                    // was already initialized, override
@@ -88,17 +87,18 @@ namespace BlackGui
            {
                if (!this->m_sizeFloatingHidden.isValid())
                {
-                    // minimumSizeHint() not as good as expected
-                    QSize m(300, 125);
-                    this->setMinimumSize(m);
+                    // manually setting size, all other approaches failed
+                    QSize m(300, 150);
                    this->window()->setMinimumSize(m);
                    this->window()->resize(m);
                    this->m_sizeFloatingHidden = this->window()->size();
                }
                else
                {
+                    this->window()->setMinimumSize(m_sizeFloatingHidden);
                    this->window()->resize(m_sizeFloatingHidden);
                }
+
                if (this->m_sizeFloatingShown.isValid())
                {
                    // was already initialized, override
--- a/src/blackgui/components/cockpitcomponent.ui
+++ b/src/blackgui/components/cockpitcomponent.ui
@@ -6,10 +6,16 @@
   <rect>
    <x>0</x>
    <y>0</y>
-    <width>400</width>
-    <height>300</height>
+    <width>200</width>
+    <height>129</height>
   </rect>
  </property>
+  <property name="minimumSize">
+   <size>
+    <width>200</width>
+    <height>0</height>
+   </size>
+  </property>
  <property name="windowTitle">
   <string>Form</string>
  </property>
@@ -54,7 +60,7 @@
   <item alignment="Qt::AlignTop">
    <widget class="BlackGui::CShowHideBar" name="wip_CockpitComPanelShowHideBar" native="true">
     <property name="sizePolicy">
-      <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
       <horstretch>0</horstretch>
       <verstretch>0</verstretch>
      </sizepolicy>
@@ -62,7 +68,13 @@
     <property name="minimumSize">
      <size>
       <width>0</width>
-       <height>10</height>
+       <height>25</height>
+      </size>
+     </property>
+     <property name="maximumSize">
+      <size>
+       <width>16777215</width>
+       <height>25</height>
      </size>
     </property>
    </widget>
--- a/src/blackgui/components/cockpitinfoareacomponent.ui
+++ b/src/blackgui/components/cockpitinfoareacomponent.ui
@@ -36,7 +36,7 @@
    </size>
   </property>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_CockpitVoiceRooms">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_CockpitVoiceRooms">
   <property name="sizePolicy">
    <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
     <horstretch>0</horstretch>
@@ -58,7 +58,7 @@
   <attribute name="dockWidgetArea">
    <number>8</number>
   </attribute>
-   <widget class="QWidget" name="qw_CockpitVoiceRooms">
+   <widget class="QWidget" name="qw_CockpitVoiceRoomsInner">
    <layout class="QVBoxLayout" name="vl_CockpitVoiceRooms">
     <property name="spacing">
      <number>3</number>
@@ -88,7 +88,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Audio">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Audio">
   <property name="sizePolicy">
    <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
     <horstretch>0</horstretch>
@@ -110,7 +110,7 @@
   <attribute name="dockWidgetArea">
    <number>8</number>
   </attribute>
-   <widget class="QWidget" name="qw_Audio">
+   <widget class="QWidget" name="qw_AudioInner">
    <layout class="QVBoxLayout" name="vl_Audio">
     <property name="spacing">
      <number>3</number>
--- a/src/blackgui/components/flightplancomponent.cpp
+++ b/src/blackgui/components/flightplancomponent.cpp
@@ -276,6 +276,7 @@ namespace BlackGui
        {
            CFlightPlan flightPlan;
            CStatusMessageList messages = this->validateAndInitializeFlightPlan(flightPlan);
+            CLogMessage(this).validations(messages);
        }

        void CFlightPlanComponent::ps_resetFlightPlan()
--- a/src/blackgui/components/maininfoareacomponent.cpp
+++ b/src/blackgui/components/maininfoareacomponent.cpp
@@ -96,9 +96,11 @@ namespace BlackGui
            case InfoAreaMappings:
            case InfoAreaSettings:
            case InfoAreaTextMessages:
-            case InfoAreaFlightPlan:
                return QSize(600, 400);
                break;
+            case InfoAreaFlightPlan:
+                return QSize(625, 500);
+                break;
            default:
                return QSize(400, 300);
                break;
--- a/src/blackgui/components/maininfoareacomponent.ui
+++ b/src/blackgui/components/maininfoareacomponent.ui
@@ -39,7 +39,7 @@
   <set>QMainWindow::AllowTabbedDocks|QMainWindow::ForceTabbedDocks</set>
  </property>
  <widget class="QWidget" name="qw_centralWidgetEmpty"/>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Cockpit">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Cockpit">
   <property name="maximumSize">
    <size>
     <width>524287</width>
@@ -55,7 +55,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_CockpitInner">
+   <widget class="QWidget" name="qw_CockpitInner">
    <layout class="QVBoxLayout" name="vl_Cockpit">
     <property name="spacing">
      <number>0</number>
@@ -78,7 +78,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Aircrafts">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Aircrafts">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -97,7 +97,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_AircraftsInner">
+   <widget class="QWidget" name="qw_AircraftsInner">
    <property name="minimumSize">
     <size>
      <width>0</width>
@@ -139,7 +139,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_AtcStations">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_AtcStations">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -158,7 +158,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_AtcStationsInner">
+   <widget class="QWidget" name="qw_AtcStationsInner">
    <property name="minimumSize">
     <size>
      <width>0</width>
@@ -200,7 +200,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Users">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Users">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -216,7 +216,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_UsersInner">
+   <widget class="QWidget" name="qw_UsersInner">
    <layout class="QVBoxLayout" name="vl_Users">
     <property name="spacing">
      <number>0</number>
@@ -246,7 +246,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_TextMessages">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_TextMessages">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -262,7 +262,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_TextMessagesInner">
+   <widget class="QWidget" name="qw_TextMessagesInner">
    <layout class="QVBoxLayout" name="vl_TextMessages">
     <property name="spacing">
      <number>0</number>
@@ -292,7 +292,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Simulator">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Simulator">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -308,7 +308,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_SimulatorInner">
+   <widget class="QWidget" name="qw_SimulatorInner">
    <layout class="QVBoxLayout" name="verticalLayout">
     <property name="spacing">
      <number>0</number>
@@ -338,7 +338,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_FlightPlan">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_FlightPlan">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -354,7 +354,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_FlightPlanInner">
+   <widget class="QWidget" name="qw_FlightPlanInner">
    <layout class="QVBoxLayout" name="vl_FlightPlan">
     <property name="spacing">
      <number>0</number>
@@ -384,7 +384,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Weather">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Weather">
   <property name="minimumSize">
    <size>
     <width>80</width>
@@ -400,7 +400,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_WeatherInner">
+   <widget class="QWidget" name="qw_WeatherInner">
    <property name="minimumSize">
     <size>
      <width>0</width>
@@ -433,7 +433,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Mappings">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Mappings">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -449,7 +449,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_MappingsInner">
+   <widget class="QWidget" name="qw_MappingsInner">
    <layout class="QVBoxLayout" name="vl_Mappings">
     <property name="spacing">
      <number>0</number>
@@ -479,7 +479,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Log">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Log">
   <property name="minimumSize">
    <size>
     <width>80</width>
@@ -495,7 +495,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_LogInner">
+   <widget class="QWidget" name="qw_LogInner">
    <layout class="QVBoxLayout" name="vl_Log">
     <property name="spacing">
      <number>0</number>
@@ -525,7 +525,7 @@
    </layout>
   </widget>
  </widget>
-  <widget class="BlackGui::CDockWidgetInfoArea" name="dw_Settings">
+  <widget class="BlackGui::CDockWidgetInfoArea" name="dwp_Settings">
   <property name="minimumSize">
    <size>
     <width>127</width>
@@ -541,7 +541,7 @@
   <attribute name="dockWidgetArea">
    <number>4</number>
   </attribute>
-   <widget class="QWidget" name="dw_SettingsInner">
+   <widget class="QWidget" name="qw_SettingsInner">
    <layout class="QVBoxLayout" name="vl_Settings">
     <property name="spacing">
      <number>0</number>
--- a/src/blackgui/dockwidget.cpp
+++ b/src/blackgui/dockwidget.cpp
@@ -14,36 +14,39 @@
 #include <QCloseEvent>
 #include <QStyleOption>
 #include <QPainter>
+#include <QLayout>

 namespace BlackGui
 {
    CDockWidget::CDockWidget(QWidget *parent) : QDockWidget(parent)
    {
+
        this->ps_onStyleSheetsChanged();
        this->initTitleBarWidgets();

+        // context menu
+        this->setContextMenuPolicy(Qt::CustomContextMenu);
+        connect(this, &CDockWidget::customContextMenuRequested, this, &CDockWidget::ps_showContextMenu);
+
        // connect
        connect(this, &QDockWidget::topLevelChanged, this, &CDockWidget::ps_onTopLevelChanged);
        connect(&CStyleSheetUtility::instance(), &CStyleSheetUtility::styleSheetsChanged, this, &CDockWidget::ps_onStyleSheetsChanged);
        connect(this, &QDockWidget::visibilityChanged, this, &CDockWidget::ps_onVisibilityChanged);

-        // context menu
-        this->setContextMenuPolicy(Qt::CustomContextMenu);
-        connect(this, &CDockWidget::customContextMenuRequested, this, &CDockWidget::ps_showContextMenu);
    }

    void CDockWidget::setOriginalTitleBar()
    {
-        if (!this->m_titleBarOriginal) { this->initTitleBarWidgets(); }
-        if (this->titleBarWidget() == this->m_titleBarOriginal) return; // on purpose, as I do not know what happens when I call setTitleBar
-        this->setTitleBarWidget(this->m_titleBarOriginal);
+        if (!this->m_titleBarWidgetOriginal) { this->initTitleBarWidgets(); }
+        if (this->titleBarWidget() == this->m_titleBarWidgetOriginal) return; // on purpose, as I do not know what happens when I call setTitleBar
+        this->setTitleBarWidget(this->m_titleBarWidgetOriginal);
    }

    void CDockWidget::setEmptyTitleBar()
    {
-        if (!this->m_titleBarOriginal) { this->initTitleBarWidgets(); }
-        if (this->titleBarWidget() == this->m_emptyTitleBar) return; // on purpose, as I do not know what happens when I call setTitleBar
-        this->setTitleBarWidget(this->m_emptyTitleBar);
+        if (!this->m_titleBarWidgetOriginal) { this->initTitleBarWidgets(); }
+        if (this->titleBarWidget() == this->m_titleBarWidgetEmpty) return; // on purpose, as I do not know what happens when I call setTitleBar
+        this->setTitleBarWidget(this->m_titleBarWidgetEmpty);
    }

    void CDockWidget::setNullTitleBar()
@@ -57,6 +60,18 @@ namespace BlackGui
        QDockWidget::setWindowTitle(title);
    }

+    void CDockWidget::displayStatusMessage(const BlackMisc::CStatusMessage &statusMessage)
+    {
+        if (!this->isFloating()) { return; }
+        this->m_statusBar.displayStatusMessage(statusMessage);
+    }
+
+    void CDockWidget::displayStatusMessages(const BlackMisc::CStatusMessageList &statusMessages)
+    {
+        if (!this->isFloating()) { return; }
+        this->m_statusBar.displayStatusMessages(statusMessages);
+    }
+
    void CDockWidget::showTitleWhenDocked(bool show)
    {
        this->m_windowTitleWhenDocked = show;
@@ -121,6 +136,9 @@ namespace BlackGui
    void CDockWidget::initialFloating()
    {

+        // init status bar, as we have now all structure set
+        this->initStatusBar();
+
        // for the first time resize
        if (!this->m_preferredSizeWhenFloating.isNull())
        {
@@ -149,8 +167,9 @@ namespace BlackGui
            this->setContentsMargins(this->m_marginsWhenFloating);
            if (!this->m_wasAlreadyFloating)
            {
-                this->initalFloating();
+                this->initialFloating();
            }
+            this->m_statusBar.show();
            this->m_wasAlreadyFloating = true;
        }
        else
@@ -160,6 +179,7 @@ namespace BlackGui
                QDockWidget::setWindowTitle("");
            }

+            this->m_statusBar.hide();
            this->setEmptyTitleBar();
            this->setContentsMargins(this->m_marginsWhenDocked);
        }
@@ -168,9 +188,33 @@ namespace BlackGui

    void CDockWidget::initTitleBarWidgets()
    {
-        this->m_titleBarOriginal = this->titleBarWidget();
-        this->m_emptyTitleBar = new QWidget(this);
-        this->setTitleBarWidget(this->m_emptyTitleBar);
+        this->m_titleBarWidgetOriginal = this->titleBarWidget();
+        this->m_titleBarWidgetEmpty = new QWidget(this);
+        this->setTitleBarWidget(this->m_titleBarWidgetEmpty);
+    }
+
+    void CDockWidget::initStatusBar()
+    {
+        if (this->m_statusBar.getStatusBar()) { return; }
+        if (!this->m_allowStatusBar) { return; }
+        this->m_statusBar.initStatusBar();
+
+        QWidget *innerDockWidget = this->widget(); // the inner widget containing the layout
+        Q_ASSERT(innerDockWidget);
+        if (!innerDockWidget) { return; }
+        QVBoxLayout *vLayout = qobject_cast<QVBoxLayout *>(innerDockWidget->layout());
+        Q_ASSERT(vLayout);
+        if (!vLayout) { return; }
+        vLayout->addWidget(this->m_statusBar.getStatusBar(), 0, Qt::AlignBottom);
+
+        // adjust stretching of the original widget. It was the only widget so far
+        // and should occupy maximum space
+        QWidget *compWidget = innerDockWidget->findChild<QWidget *>(QString(), Qt::FindDirectChildrenOnly);
+        Q_ASSERT(compWidget);
+        if (!compWidget) { return; }
+        QSizePolicy sizePolicy = compWidget->sizePolicy();
+        sizePolicy.setVerticalStretch(1);
+        compWidget->setSizePolicy(sizePolicy);
    }

    void CDockWidget::ps_showContextMenu(const QPoint &pos)
@@ -191,4 +235,4 @@ namespace BlackGui
    {
        // void, for further extensions
    }
-}
+} // namespace
--- a/src/blackgui/dockwidget.h
+++ b/src/blackgui/dockwidget.h
@@ -12,9 +12,11 @@
 #ifndef BLACKGUI_DOCKWIDGET_H
 #define BLACKGUI_DOCKWIDGET_H

-#include "components/enableforruntime.h"
+#include "managedstatusbar.h"
+
 #include <QDockWidget>
 #include <QTabWidget>
+#include <QStatusBar>
 #include <QMenu>
 #include <QLabel>

@@ -68,6 +70,9 @@ namespace BlackGui
        //! \remarks Logical vsibility as in \sa QDockWidget::visibilityChanged
        bool isWidgetVisible() const { return this->m_dockWidgetVisible && this->isVisible(); }

+        //! Allow a status bar to be displayed
+        void allowStatusBar(bool allow) { this->m_allowStatusBar = allow; }
+
        //! Show the window title when docked
        void showTitleWhenDocked(bool show);

@@ -93,6 +98,12 @@ namespace BlackGui
        //! Set title and internally keep a backup
        void setWindowTitle(const QString &title);

+        //! Display status message
+        void displayStatusMessage(const BlackMisc::CStatusMessage &statusMessage);
+
+        //! Display status messages
+        void displayStatusMessages(const BlackMisc::CStatusMessageList &statusMessages);
+
    signals:
        //! Top level has changed for given widget
        void widgetTopLevelChanged(CDockWidget *, bool topLevel);
@@ -130,21 +141,25 @@ namespace BlackGui
        virtual void ps_onVisibilityChanged(bool visible);

    private:
-        QWidget *m_emptyTitleBar    = nullptr; //!< replacing default title bar
-        QWidget *m_titleBarOriginal = nullptr; //!< the original title bar
-        QMargins m_marginsWhenFloating;        //!< Offsets when window is floating
-        QMargins m_marginsWhenDocked;          //!< Offsets when window is floating
-        QString  m_windowTitleBackup;          //!< original title, even if the widget title is deleted for layout purposes
-        QSize m_preferredSizeWhenFloating;     //!< preferred size men floating 1st time
-        QPoint m_offsetWhenFloating;           //!< initial offset to main window when floating first time
+        QWidget *m_titleBarWidgetEmpty    = nullptr; //!< replacing default title bar
+        QWidget *m_titleBarWidgetOriginal = nullptr; //!< the original title bar
+        QMargins m_marginsWhenFloating;              //!< Offsets when window is floating
+        QMargins m_marginsWhenDocked;                //!< Offsets when window is docked
+        CManagedStatusBar m_statusBar;               //!< Status bar when floating
+        QString  m_windowTitleBackup;                //!< original title, even if the widget title is deleted for layout purposes
+        QSize m_preferredSizeWhenFloating;           //!< preferred size when floating 1st time
+        QPoint m_offsetWhenFloating;                 //!< initial offset to main window when floating first time
+        bool m_allowStatusBar        = true;
        bool m_windowTitleWhenDocked = true;
        bool m_wasAlreadyFloating    = false;
-        bool m_selected              = false;  //!< selected when tabbed
-        bool m_dockWidgetVisible     = false;  //!< logical visible, not to be confused with QDockWidget::isVisible()
+        bool m_selected              = false;        //!< selected when tabbed
+        bool m_dockWidgetVisible     = false;        //!< logical visible, not to be confused with QDockWidget::isVisible()

        //! Empty widget with no size
        void initTitleBarWidgets();

+        //! Init status bar
+        void initStatusBar();
    };

 } // namespace
--- a/src/blackgui/infoarea.cpp
+++ b/src/blackgui/infoarea.cpp
@@ -152,7 +152,8 @@ namespace BlackGui
    {
        // we assume that there can only be 1, non floating info area,
        // which is the only visible one
-        if (this->m_tabBar->count() < 1) { return nullptr; }
+        // selecting is tab text independent (can be hidden)
+        if (!this->m_tabBar || this->m_tabBar->count() < 1) { return nullptr; }
        foreach(const CDockWidgetInfoArea * ia, m_dockWidgetInfoAreas)
        {
            if (ia->isFloating()) { continue; }
@@ -161,6 +162,15 @@ namespace BlackGui
        return nullptr;
    }

+    int CInfoArea::getSelectedDockInfoAreaIndex() const
+    {
+        const CDockWidgetInfoArea *sel = getSelectedDockInfoArea();
+        if (!sel) { return -1; }
+        const QString t(sel->windowTitleBackup());
+        int ia = getAreaIndexByWindowTitle(t);
+        return ia;
+    }
+
    QList<const CDockWidgetInfoArea *> CInfoArea::getDockWidgetInfoAreas() const
    {
        QList<const CDockWidgetInfoArea *> constDockWidgets;
@@ -187,6 +197,19 @@ namespace BlackGui
        return actions;
    }

+    QList<int> CInfoArea::getAreaIndexesDockedOrFloating(bool floating) const
+    {
+        QList<int> indexes;
+        for (int i = 0; i < m_dockWidgetInfoAreas.size(); i++)
+        {
+            if (this->m_dockWidgetInfoAreas.at(i)->isFloating() == floating)
+            {
+                indexes.append(i);
+            }
+        }
+        return indexes;
+    }
+
    void CInfoArea::paintEvent(QPaintEvent *event)
    {
        Q_UNUSED(event);
@@ -258,9 +281,9 @@ namespace BlackGui
    {
        CDockWidgetInfoArea *dw = this->m_dockWidgetInfoAreas.at(areaIndex);
        Q_ASSERT(dw);
-        if (!dw) return;
+        if (!dw) { return; }
        Q_ASSERT(this->m_tabBar);
-        if (m_tabBar->count() < 1) return;
+        if (m_tabBar->count() < 1) { return; }

        if (dw->isFloating())
        {
@@ -309,6 +332,21 @@ namespace BlackGui
        }
    }

+    void CInfoArea::displayStatusMessage(const CStatusMessage &statusMessage)
+    {
+        for (CDockWidgetInfoArea *dw : this->m_dockWidgetInfoAreas)
+        {
+            dw->displayStatusMessage(statusMessage);
+        }
+    }
+
+    void CInfoArea::displayStatusMessages(const CStatusMessageList &statusMessages)
+    {
+        for (CDockWidgetInfoArea *dw : this->m_dockWidgetInfoAreas)
+        {
+            dw->displayStatusMessages(statusMessages);
+        }
+    }

    void CInfoArea::ps_setDockArea(Qt::DockWidgetArea area)
    {
@@ -316,7 +354,7 @@ namespace BlackGui
        {
            Qt::DockWidgetAreas newAreas = static_cast<Qt::DockWidgetAreas>(area);
            Qt::DockWidgetAreas oldAreas = dw->allowedAreas();
-            if (oldAreas == newAreas) continue;
+            if (oldAreas == newAreas) { continue; }
            dw->setAllowedAreas(newAreas);
            this->addDockWidget(area, dw);
        }
@@ -398,7 +436,7 @@ namespace BlackGui

                // signals
                connect(this->m_tabBar, &QTabBar::tabBarDoubleClicked, this, &CInfoArea::ps_tabBarDoubleClicked);
-                connect(this->m_tabBar, &QTabBar::currentChanged, this, &CInfoArea::tabBarCurrentChanged);
+                connect(this->m_tabBar, &QTabBar::currentChanged, this, &CInfoArea::ps_onTabBarIndexChanged);
            }
            else
            {
@@ -481,6 +519,20 @@ namespace BlackGui
        return infoAreas;
    }

+    void CInfoArea::ps_emitInfoAreaStatus()
+    {
+        int sia = this->getSelectedDockInfoAreaIndex();
+        QList<int> floating = this->getAreaIndexesDockedOrFloating(true);
+        QList<int> docked = this->getAreaIndexesDockedOrFloating(false);
+        emit changedInfoAreaStatus(sia, docked, floating);
+    }
+
+    void CInfoArea::ps_onTabBarIndexChanged(int tabBarIndex)
+    {
+        emit changedInfoAreaTabBarIndex(tabBarIndex);
+        ps_emitInfoAreaStatus();
+    }
+
    int CInfoArea::countDockedWidgetInfoAreas() const
    {
        if (!this->m_tabBar) return 0;
@@ -503,7 +555,7 @@ namespace BlackGui
        return nullptr;
    }

-    int CInfoArea::getAreaIndexByWindowTitle(const QString &title)
+    int CInfoArea::getAreaIndexByWindowTitle(const QString &title) const
    {
        Q_ASSERT(!title.isEmpty());
        for (int i = 0; i < m_dockWidgetInfoAreas.size(); i++)
@@ -567,7 +619,7 @@ namespace BlackGui
    {
        if (this->m_lockTabBar) return;
        CDockWidgetInfoArea *dw = this->getDockWidgetInfoAreaByTabBarIndex(tabBarIndex);
-        if (!dw) return;
+        if (!dw) { return; }
        dw->toggleFloating();
    }

@@ -575,15 +627,21 @@ namespace BlackGui
    {
        Q_ASSERT(dockWidget);
        Q_UNUSED(topLevel);
-        if (!dockWidget) return;
+        if (!dockWidget) { return; }

        // fix pixmaps
        this->setTabPixmaps();

        // select index
-        if (topLevel) { return; }
-        CDockWidgetInfoArea *dwia = dynamic_cast<CDockWidgetInfoArea *>(dockWidget);
-        this->setCurrentTabIndex(dwia);
+        if (!topLevel)
+        {
+            CDockWidgetInfoArea *dwia = dynamic_cast<CDockWidgetInfoArea *>(dockWidget);
+            this->setCurrentTabIndex(dwia);
+        }
+
+        // when toplevel is changed, I need a round in the event loop until
+        // current tab bar widget is visible
+        QTimer::singleShot(250, this, SLOT(ps_emitInfoAreaStatus()));
    }

    void CInfoArea::ps_onStyleSheetChanged()
--- a/src/blackgui/infoarea.h
+++ b/src/blackgui/infoarea.h
@@ -16,8 +16,7 @@
 #include <QMainWindow>
 #include <QTabBar>
 #include <QPixmap>
-
-namespace Ui { class CInfoArea; }
+#include <QList>

 namespace BlackGui
 {
@@ -43,17 +42,26 @@ namespace BlackGui
        //! Get the selected info area (non floating, selected in tabbar)
        const CDockWidgetInfoArea *getSelectedDockInfoArea() const;

+        //! Get the selected info area (non floating, selected in tabbar)
+        int getSelectedDockInfoAreaIndex() const;
+
        //! Own dockable widgets
        QList<const CDockWidgetInfoArea *> getDockWidgetInfoAreas() const;

-        //! Create a list of actions to select the info areas. This could be used in a menu
-        //! or somewhere else.
+        //! Create a list of actions to select the info areas.
+        //! This could be used in a menu or somewhere else.
        //! \param parent which will own the action (deletion)
        QList<QAction *> getInfoAreaSelectActions(QWidget *parent) const;

+        //! Docked area indexes
+        QList<int> getAreaIndexesDockedOrFloating(bool floating) const;
+
    signals:
        //! Tab bar changed
-        void tabBarCurrentChanged(int index);
+        void changedInfoAreaTabBarIndex(int index);
+
+        //! Status of info area changed
+        void changedInfoAreaStatus(int currentTabIndex, QList<int> dockedAreas, QList<int> floatingAreas);

    public slots:
        //! Dock all widgets
@@ -86,6 +94,12 @@ namespace BlackGui
        //! Select next right tab
        void selectRightTab();

+        //! Display status message
+        void displayStatusMessage(const BlackMisc::CStatusMessage &statusMessage);
+
+        //! Display status messages
+        void displayStatusMessages(const BlackMisc::CStatusMessageList &statusMessages);
+
    protected:
        //! Constructor
        explicit CInfoArea(QWidget *parent = nullptr);
@@ -98,7 +112,7 @@ namespace BlackGui

        //! \copydoc QWidget::keyPressEvent
        //! \remarks nor fully sufficient, as the info area is hardly having focus
-        virtual void keyPressEvent(QKeyEvent * event) override;
+        virtual void keyPressEvent(QKeyEvent *event) override;

        //! Preferred size when floating (size hint)
        virtual QSize getPreferredSizeWhenFloating(int areaIndex) const = 0;
@@ -115,7 +129,6 @@ namespace BlackGui
        void ps_setTabBarPosition(QTabWidget::TabPosition position);

    private:
-        Ui::CInfoArea *ui = nullptr;
        QList<CDockWidgetInfoArea *> m_dockWidgetInfoAreas ;
        QTabBar *m_tabBar = nullptr;
        bool m_showTabTexts     = true;   //!< texts for tabs
@@ -139,7 +152,7 @@ namespace BlackGui
        CDockWidgetInfoArea *getDockWidgetInfoAreaByWindowTitle(const QString &title);

        //! Corresponding dockable widget for given window title
-        int getAreaIndexByWindowTitle(const QString &title);
+        int getAreaIndexByWindowTitle(const QString &title) const;

        //! Tab bar index by title
        int getTabBarIndexByTitle(const QString &title) const;
@@ -206,6 +219,12 @@ namespace BlackGui
        //! Dock / floating of the whole info area
        void ps_setInfoAreaFloating(bool floating);

+        //! Emit current status, \sa changedInfoAreaStatus
+        void ps_emitInfoAreaStatus();
+
+        //! Tab bar index changed
+        void ps_onTabBarIndexChanged(int tabBarIndex);
+
    };
 } // namespace