IOutputPane: Refactor zoom function into base class

Try to make zoom and font handling in the panes more
similar and put common stuff into IOutputPane.

Change-Id: I59c38c5eecbf67b7ca6c9d84a6f61b1292a787df
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

12 files changed, 131 insertions, 201 deletions

diff --git a/src/plugins/coreplugin/ioutputpane.h b/src/plugins/coreplugin/ioutputpane.h
index 9ca6b1ef80..3513d85095 100644
--- a/src/plugins/coreplugin/ioutputpane.h
+++ b/src/plugins/coreplugin/ioutputpane.h
@@ -32,6 +32,7 @@
 #include <QString>
 
 QT_BEGIN_NAMESPACE
+class QToolButton;
 class QWidget;
 QT_END_NAMESPACE
 
@@ -46,7 +47,7 @@ public:
     ~IOutputPane() override;
 
     virtual QWidget *outputWidget(QWidget *parent) = 0;
-    virtual QList<QWidget *> toolBarWidgets() const = 0;
+    virtual QList<QWidget *> toolBarWidgets() const;
     virtual QString displayName() const = 0;
 
     virtual int priorityInStatusBar() const = 0;
@@ -64,6 +65,9 @@ public:
     virtual void goToNext() = 0;
     virtual void goToPrev() = 0;
 
+    void setFont(const QFont &font);
+    void setWheelZoomEnabled(bool enabled);
+
     enum Flag { NoModeSwitch = 0, ModeSwitch = 1, WithFocus = 2, EnsureSizeHint = 4};
     Q_DECLARE_FLAGS(Flags, Flag)
 
@@ -83,6 +87,17 @@ signals:
     void navigateStateUpdate();
     void flashButton();
     void setBadgeNumber(int number);
+    void zoomIn(int range);
+    void zoomOut(int range);
+    void wheelZoomEnabledChanged(bool enabled);
+    void fontChanged(const QFont &font);
+
+protected:
+    void setZoomButtonsEnabled(bool enabled);
+
+private:
+    QToolButton * const m_zoomInButton = nullptr;
+    QToolButton * const m_zoomOutButton = nullptr;
 };
 
 } // namespace Core
diff --git a/src/plugins/coreplugin/messageoutputwindow.cpp b/src/plugins/coreplugin/messageoutputwindow.cpp
index 5541090379..a88f491955 100644
--- a/src/plugins/coreplugin/messageoutputwindow.cpp
+++ b/src/plugins/coreplugin/messageoutputwindow.cpp
@@ -41,11 +41,9 @@ namespace Internal {
 
 const char zoomSettingsKey[] = "Core/MessageOutput/Zoom";
 
-MessageOutputWindow::MessageOutputWindow() :
-    m_zoomInButton(new QToolButton),
-    m_zoomOutButton(new QToolButton)
+MessageOutputWindow::MessageOutputWindow()
 {
-    m_widget = new OutputWindow(Context(Constants::C_GENERAL_OUTPUT_PANE));
+    m_widget = new OutputWindow(Context(Constants::C_GENERAL_OUTPUT_PANE), zoomSettingsKey);
     m_widget->setReadOnly(true);
     // Let selected text be colored as if the text edit was editable,
     // otherwise the highlight for searching is too light
@@ -55,30 +53,20 @@ MessageOutputWindow::MessageOutputWindow() :
     QColor activeHighlightedText = p.color(QPalette::Active, QPalette::HighlightedText);
     p.setColor(QPalette::HighlightedText, activeHighlightedText);
     m_widget->setPalette(p);
+
+    setZoomButtonsEnabled(true);
+    connect(this, &IOutputPane::zoomIn, m_widget, &Core::OutputWindow::zoomIn);
+    connect(this, &IOutputPane::zoomOut, m_widget, &Core::OutputWindow::zoomOut);
+    connect(this, &IOutputPane::fontChanged, m_widget, &OutputWindow::setBaseFont);
+    connect(this, &IOutputPane::wheelZoomEnabledChanged, m_widget, &OutputWindow::setWheelZoomEnabled);
+
     auto agg = new Aggregation::Aggregate;
     agg->add(m_widget);
     agg->add(new BaseTextFind(m_widget));
-
-    loadSettings();
-
-    m_zoomInButton->setToolTip(tr("Increase Font Size"));
-    m_zoomInButton->setIcon(Utils::Icons::PLUS_TOOLBAR.icon());
-    m_zoomInButton->setAutoRaise(true);
-    connect(m_zoomInButton, &QToolButton::clicked, this, [this] { m_widget->zoomIn(1); });
-
-    m_zoomOutButton->setToolTip(tr("Decrease Font Size"));
-    m_zoomOutButton->setIcon(Utils::Icons::MINUS.icon());
-    m_zoomOutButton->setAutoRaise(true);
-    connect(m_zoomOutButton, &QToolButton::clicked, this, [this] { m_widget->zoomOut(1); });
-
-    connect(Core::ICore::instance(), &Core::ICore::saveSettingsRequested,
-            this, &MessageOutputWindow::storeSettings);
 }
 
 MessageOutputWindow::~MessageOutputWindow()
 {
-    delete m_zoomInButton;
-    delete m_zoomOutButton;
     delete m_widget;
 }
 
@@ -108,11 +96,6 @@ QWidget *MessageOutputWindow::outputWidget(QWidget *parent)
     return m_widget;
 }
 
-QList<QWidget *> MessageOutputWindow::toolBarWidgets() const
-{
-    return {m_zoomInButton, m_zoomOutButton};
-}
-
 QString MessageOutputWindow::displayName() const
 {
     return tr("General Messages");
@@ -157,30 +140,5 @@ bool MessageOutputWindow::canNavigate() const
     return false;
 }
 
-void MessageOutputWindow::setFont(const QFont &font)
-{
-    m_widget->setBaseFont(font);
-}
-
-void MessageOutputWindow::setWheelZoomEnabled(bool enabled)
-{
-    m_widget->setWheelZoomEnabled(enabled);
-}
-
-void MessageOutputWindow::storeSettings() const
-{
-    QSettings * const s = Core::ICore::settings();
-
-    s->setValue(zoomSettingsKey, m_widget->fontZoom());
-}
-
-void MessageOutputWindow::loadSettings()
-{
-    QSettings * const s = Core::ICore::settings();
-
-    float zoom = s->value(zoomSettingsKey, 0).toFloat();
-    m_widget->setFontZoom(zoom);
-}
-
 } // namespace Internal
 } // namespace Core
diff --git a/src/plugins/coreplugin/messageoutputwindow.h b/src/plugins/coreplugin/messageoutputwindow.h
index 238fbb7b81..f32bcea176 100644
--- a/src/plugins/coreplugin/messageoutputwindow.h
+++ b/src/plugins/coreplugin/messageoutputwindow.h
@@ -46,7 +46,6 @@ public:
     ~MessageOutputWindow() override;
 
     QWidget *outputWidget(QWidget *parent) override;
-    QList<QWidget*> toolBarWidgets() const override;
 
     QString displayName() const override;
     int priorityInStatusBar() const override;
@@ -64,16 +63,8 @@ public:
     void goToPrev() override;
     bool canNavigate() const override;
 
-    void setFont(const QFont &font);
-    void setWheelZoomEnabled(bool enabled);
-
 private:
-    void storeSettings() const;
-    void loadSettings();
-
     OutputWindow *m_widget;
-    QToolButton *m_zoomInButton = nullptr;
-    QToolButton *m_zoomOutButton = nullptr;
 };
 
 } // namespace Internal
diff --git a/src/plugins/coreplugin/outputpanemanager.cpp b/src/plugins/coreplugin/outputpanemanager.cpp
index eb411bdaa9..3122e35bac 100644
--- a/src/plugins/coreplugin/outputpanemanager.cpp
+++ b/src/plugins/coreplugin/outputpanemanager.cpp
@@ -88,11 +88,25 @@ static bool g_managerConstructed = false; // For debugging reasons.
 // OutputPane
 
 IOutputPane::IOutputPane(QObject *parent)
-    : QObject(parent)
+    : QObject(parent),
+      m_zoomInButton(new QToolButton),
+      m_zoomOutButton(new QToolButton)
 {
     // We need all pages first. Ignore latecomers and shout.
     QTC_ASSERT(!g_managerConstructed, return);
     g_outputPanes.append(OutputPaneData(this));
+
+    m_zoomInButton->setToolTip(tr("Increase Font Size"));
+    m_zoomInButton->setIcon(Utils::Icons::PLUS_TOOLBAR.icon());
+    m_zoomInButton->setAutoRaise(true);
+    m_zoomInButton->setVisible(false);
+    connect(m_zoomInButton, &QToolButton::clicked, this, [this] { emit zoomIn(1); });
+
+    m_zoomOutButton->setToolTip(tr("Decrease Font Size"));
+    m_zoomOutButton->setIcon(Utils::Icons::MINUS.icon());
+    m_zoomOutButton->setAutoRaise(true);
+    m_zoomOutButton->setVisible(false);
+    connect(m_zoomOutButton, &QToolButton::clicked, this, [this] { emit zoomOut(1); });
 }
 
 IOutputPane::~IOutputPane()
@@ -100,6 +114,32 @@ IOutputPane::~IOutputPane()
     const int i = Utils::indexOf(g_outputPanes, Utils::equal(&OutputPaneData::pane, this));
     QTC_ASSERT(i >= 0, return);
     delete g_outputPanes.at(i).button;
+
+    delete m_zoomInButton;
+    delete m_zoomOutButton;
+}
+
+QList<QWidget *> IOutputPane::toolBarWidgets() const
+{
+    return {m_zoomInButton, m_zoomOutButton};
+}
+
+void IOutputPane::setFont(const QFont &font)
+{
+    emit fontChanged(font);
+}
+
+void IOutputPane::setWheelZoomEnabled(bool enabled)
+{
+    emit wheelZoomEnabledChanged(enabled);
+}
+
+void IOutputPane::setZoomButtonsEnabled(bool enabled)
+{
+    m_zoomInButton->setEnabled(enabled);
+    m_zoomInButton->setVisible(true);
+    m_zoomOutButton->setEnabled(enabled);
+    m_zoomOutButton->setVisible(true);
 }
 
 namespace Internal {
diff --git a/src/plugins/coreplugin/outputwindow.cpp b/src/plugins/coreplugin/outputwindow.cpp
index 33c203489d..46807e6534 100644
--- a/src/plugins/coreplugin/outputwindow.cpp
+++ b/src/plugins/coreplugin/outputwindow.cpp
@@ -77,8 +77,9 @@ public:
 
 /*******************/
 
-OutputWindow::OutputWindow(Context context, QWidget *parent)
+OutputWindow::OutputWindow(Context context, const QString &settingsKey, QWidget *parent)
     : QPlainTextEdit(parent)
+    , m_settingsKey(settingsKey)
     , d(new Internal::OutputWindowPrivate(document()))
 {
     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
@@ -117,6 +118,10 @@ OutputWindow::OutputWindow(Context context, QWidget *parent)
     connect(this, &QPlainTextEdit::redoAvailable, redoAction, &QAction::setEnabled);
     connect(this, &QPlainTextEdit::copyAvailable, cutAction, &QAction::setEnabled);  // OutputWindow never read-only
     connect(this, &QPlainTextEdit::copyAvailable, copyAction, &QAction::setEnabled);
+    connect(Core::ICore::instance(), &Core::ICore::saveSettingsRequested, this, [this] {
+        if (!m_settingsKey.isEmpty())
+            Core::ICore::settings()->setValue(m_settingsKey, fontZoom());
+    });
 
     undoAction->setEnabled(false);
     redoAction->setEnabled(false);
@@ -130,6 +135,11 @@ OutputWindow::OutputWindow(Context context, QWidget *parent)
     m_lastMessage.start();
 
     d->m_originalFontSize = font().pointSizeF();
+
+    if (!m_settingsKey.isEmpty()) {
+        float zoom = Core::ICore::settings()->value(m_settingsKey).toFloat();
+        setFontZoom(zoom);
+    }
 }
 
 OutputWindow::~OutputWindow()
diff --git a/src/plugins/coreplugin/outputwindow.h b/src/plugins/coreplugin/outputwindow.h
index 56972b84e7..34ce261098 100644
--- a/src/plugins/coreplugin/outputwindow.h
+++ b/src/plugins/coreplugin/outputwindow.h
@@ -52,7 +52,7 @@ public:
     };
     Q_DECLARE_FLAGS(FilterModeFlags, FilterModeFlag)
 
-    OutputWindow(Context context, QWidget *parent = nullptr);
+    OutputWindow(Context context, const QString &settingsKey, QWidget *parent = nullptr);
     ~OutputWindow() override;
 
     Utils::OutputFormatter *formatter() const;
@@ -114,6 +114,7 @@ private:
 
     QColor m_highlightBgColor;
     QColor m_highlightTextColor;
+    const QString m_settingsKey;
 
     Internal::OutputWindowPrivate *d;
 };
diff --git a/src/plugins/projectexplorer/appoutputpane.cpp b/src/plugins/projectexplorer/appoutputpane.cpp
index f162715760..672cf72e17 100644
--- a/src/plugins/projectexplorer/appoutputpane.cpp
+++ b/src/plugins/projectexplorer/appoutputpane.cpp
@@ -184,8 +184,6 @@ AppOutputPane::AppOutputPane() :
     m_reRunButton(new QToolButton),
     m_stopButton(new QToolButton),
     m_attachButton(new QToolButton),
-    m_zoomInButton(new QToolButton),
-    m_zoomOutButton(new QToolButton),
     m_settingsButton(new QToolButton),
     m_filterOutputLineEdit(new Utils::FancyLineEdit),
     m_formatterWidget(new QWidget)
@@ -224,19 +222,8 @@ AppOutputPane::AppOutputPane() :
     connect(m_attachButton, &QToolButton::clicked,
             this, &AppOutputPane::attachToRunControl);
 
-    m_zoomInButton->setToolTip(tr("Increase Font Size"));
-    m_zoomInButton->setIcon(Utils::Icons::PLUS_TOOLBAR.icon());
-    m_zoomInButton->setAutoRaise(true);
-
-    connect(m_zoomInButton, &QToolButton::clicked,
-            this, &AppOutputPane::zoomIn);
-
-    m_zoomOutButton->setToolTip(tr("Decrease Font Size"));
-    m_zoomOutButton->setIcon(Utils::Icons::MINUS.icon());
-    m_zoomOutButton->setAutoRaise(true);
-
-    connect(m_zoomOutButton, &QToolButton::clicked,
-            this, &AppOutputPane::zoomOut);
+    connect(this, &Core::IOutputPane::zoomIn, this, &AppOutputPane::zoomIn);
+    connect(this, &Core::IOutputPane::zoomOut, this, &AppOutputPane::zoomOut);
 
     m_settingsButton->setToolTip(tr("Open Settings Page"));
     m_settingsButton->setIcon(Utils::Icons::SETTINGS_TOOLBAR.icon());
@@ -293,17 +280,8 @@ AppOutputPane::AppOutputPane() :
 
     m_mainWidget->setLayout(layout);
 
-    connect(TextEditor::TextEditorSettings::instance(), &TextEditor::TextEditorSettings::fontSettingsChanged,
-            this, &AppOutputPane::updateFontSettings);
-
-    connect(TextEditor::TextEditorSettings::instance(), &TextEditor::TextEditorSettings::behaviorSettingsChanged,
-            this, &AppOutputPane::updateBehaviorSettings);
-
     connect(SessionManager::instance(), &SessionManager::aboutToUnloadSession,
             this, &AppOutputPane::aboutToUnloadSession);
-
-    connect(Core::ICore::instance(), &Core::ICore::saveSettingsRequested,
-            this, &AppOutputPane::storeZoomFactor);
 }
 
 AppOutputPane::~AppOutputPane()
@@ -317,12 +295,6 @@ AppOutputPane::~AppOutputPane()
     delete m_mainWidget;
 }
 
-void AppOutputPane::storeZoomFactor()
-{
-    QSettings *settings = Core::ICore::settings();
-    settings->setValue(SETTINGS_KEY, m_zoom);
-}
-
 int AppOutputPane::currentIndex() const
 {
     if (const QWidget *w = m_tabWidget->currentWidget())
@@ -388,8 +360,8 @@ QWidget *AppOutputPane::outputWidget(QWidget *)
 
 QList<QWidget*> AppOutputPane::toolBarWidgets() const
 {
-    return { m_reRunButton, m_stopButton, m_attachButton, m_zoomInButton,
-             m_zoomOutButton, m_settingsButton, m_filterOutputLineEdit, m_formatterWidget };
+    return QList<QWidget *>{m_reRunButton, m_stopButton, m_attachButton, m_settingsButton,
+                m_filterOutputLineEdit, m_formatterWidget} + IOutputPane::toolBarWidgets();
 }
 
 QString AppOutputPane::displayName() const
@@ -432,25 +404,6 @@ void AppOutputPane::setFocus()
         m_tabWidget->currentWidget()->setFocus();
 }
 
-void AppOutputPane::updateFontSettings()
-{
-    const TextEditor::FontSettings &fs = TextEditor::TextEditorSettings::fontSettings();
-    for (const RunControlTab &rcTab : qAsConst(m_runControlTabs)) {
-        rcTab.window->setBaseFont(fs.font());
-        rcTab.window->setHighlightBgColor(fs.toTextCharFormat(TextEditor::C_SEARCH_RESULT)
-                                          .background().color());
-        rcTab.window->setHighlightTextColor(fs.toTextCharFormat(TextEditor::C_SEARCH_RESULT)
-                                            .foreground().color());
-    }
-}
-
-void AppOutputPane::updateBehaviorSettings()
-{
-    bool zoomEnabled = TextEditor::TextEditorSettings::behaviorSettings().m_scrollWheelZooming;
-    for (const RunControlTab &rcTab : qAsConst(m_runControlTabs))
-        rcTab.window->setWheelZoomEnabled(zoomEnabled);
-}
-
 void AppOutputPane::updateFilter()
 {
     const QString filter = m_filterOutputLineEdit->text();
@@ -540,24 +493,37 @@ void AppOutputPane::createNewOutputWindow(RunControl *rc)
     const TextEditor::FontSettings &fs = TextEditor::TextEditorSettings::fontSettings();
     Core::Id contextId = Core::Id(C_APP_OUTPUT).withSuffix(counter++);
     Core::Context context(contextId);
-    Core::OutputWindow *ow = new Core::OutputWindow(context, m_tabWidget);
+    Core::OutputWindow *ow = new Core::OutputWindow(context, SETTINGS_KEY, m_tabWidget);
     ow->setWindowTitle(tr("Application Output Window"));
     ow->setWindowIcon(Icons::WINDOW.icon());
     ow->setWordWrapEnabled(m_settings.wrapOutput);
     ow->setMaxCharCount(m_settings.maxCharCount);
-    ow->setWheelZoomEnabled(TextEditor::TextEditorSettings::behaviorSettings().m_scrollWheelZooming);
-    ow->setBaseFont(fs.font());
     ow->setHighlightBgColor(fs.toTextCharFormat(TextEditor::C_SEARCH_RESULT)
                             .background().color());
     ow->setHighlightTextColor(fs.toTextCharFormat(TextEditor::C_SEARCH_RESULT)
                               .foreground().color());
-    ow->setFontZoom(m_zoom);
+
+    auto updateFontSettings = [ow] {
+        ow->setBaseFont(TextEditor::TextEditorSettings::fontSettings().font());
+    };
+
+    auto updateBehaviorSettings = [ow] {
+        ow->setWheelZoomEnabled(
+                    TextEditor::TextEditorSettings::behaviorSettings().m_scrollWheelZooming);
+    };
+
+    updateFontSettings();
+    updateBehaviorSettings();
 
     connect(ow, &Core::OutputWindow::wheelZoom, this, [this, ow]() {
-        m_zoom = ow->fontZoom();
+        float fontZoom = ow->fontZoom();
         for (const RunControlTab &tab : qAsConst(m_runControlTabs))
-            tab.window->setFontZoom(m_zoom);
+            tab.window->setFontZoom(fontZoom);
     });
+    connect(TextEditor::TextEditorSettings::instance(), &TextEditor::TextEditorSettings::fontSettingsChanged,
+            this, updateFontSettings);
+    connect(TextEditor::TextEditorSettings::instance(), &TextEditor::TextEditorSettings::behaviorSettingsChanged,
+            this, updateBehaviorSettings);
 
     auto *agg = new Aggregation::Aggregate;
     agg->add(ow);
@@ -634,7 +600,6 @@ void AppOutputPane::loadSettings()
     m_settings.wrapOutput = s->value(WRAP_OUTPUT_KEY, true).toBool();
     m_settings.maxCharCount = s->value(MAX_LINES_KEY,
                                        Core::Constants::DEFAULT_MAX_CHAR_COUNT).toInt() * 100;
-    m_zoom = s->value(SETTINGS_KEY, 0).toFloat();
 }
 
 void AppOutputPane::showTabFor(RunControl *rc)
@@ -754,22 +719,16 @@ void AppOutputPane::enableDefaultButtons()
     enableButtons(currentRunControl());
 }
 
-void AppOutputPane::zoomIn()
+void AppOutputPane::zoomIn(int range)
 {
     for (const RunControlTab &tab : qAsConst(m_runControlTabs))
-        tab.window->zoomIn(1);
-    if (m_runControlTabs.isEmpty())
-        return;
-    m_zoom = m_runControlTabs.first().window->fontZoom();
+        tab.window->zoomIn(range);
 }
 
-void AppOutputPane::zoomOut()
+void AppOutputPane::zoomOut(int range)
 {
     for (const RunControlTab &tab : qAsConst(m_runControlTabs))
-        tab.window->zoomOut(1);
-    if (m_runControlTabs.isEmpty())
-        return;
-    m_zoom = m_runControlTabs.first().window->fontZoom();
+        tab.window->zoomOut(range);
 }
 
 void AppOutputPane::enableButtons(const RunControl *rc)
@@ -789,8 +748,7 @@ void AppOutputPane::enableButtons(const RunControl *rc)
             m_attachButton->setEnabled(false);
             m_attachButton->setToolTip(msgAttachDebuggerTooltip());
         }
-        m_zoomInButton->setEnabled(true);
-        m_zoomOutButton->setEnabled(true);
+        setZoomButtonsEnabled(true);
 
         replaceAllChildWidgets(m_formatterWidget->layout(), rc->outputFormatter() ?
                                    rc->outputFormatter()->toolbarWidgets() :
@@ -801,8 +759,7 @@ void AppOutputPane::enableButtons(const RunControl *rc)
         m_attachButton->setEnabled(false);
         m_attachButton->setToolTip(msgAttachDebuggerTooltip());
         m_stopAction->setEnabled(false);
-        m_zoomInButton->setEnabled(false);
-        m_zoomOutButton->setEnabled(false);
+        setZoomButtonsEnabled(false);
     }
     m_formatterWidget->setVisible(m_formatterWidget->layout()->count());
 }
diff --git a/src/plugins/projectexplorer/appoutputpane.h b/src/plugins/projectexplorer/appoutputpane.h
index c44e6c728f..16c652f1cd 100644
--- a/src/plugins/projectexplorer/appoutputpane.h
+++ b/src/plugins/projectexplorer/appoutputpane.h
@@ -119,8 +119,8 @@ private:
     void updateFromSettings();
     void enableDefaultButtons();
 
-    void zoomIn();
-    void zoomOut();
+    void zoomIn(int range);
+    void zoomOut(int range);
 
     void enableButtons(const RunControl *rc);
 
@@ -143,9 +143,6 @@ private:
     int tabWidgetIndexOf(int runControlIndex) const;
     void handleOldOutput(Core::OutputWindow *window) const;
     void updateCloseActions();
-    void updateFontSettings();
-    void storeZoomFactor();
-    void updateBehaviorSettings();
     void updateFilter();
     void configureCurrentWindow();
     void filterOutputButtonClicked();
@@ -167,14 +164,11 @@ private:
     QToolButton *m_reRunButton;
     QToolButton *m_stopButton;
     QToolButton *m_attachButton;
-    QToolButton *m_zoomInButton;
-    QToolButton *m_zoomOutButton;
     QToolButton * const m_settingsButton;
     QAction *m_filterActionRegexp = nullptr;
     QAction *m_filterActionCaseSensitive = nullptr;
     Utils::FancyLineEdit *m_filterOutputLineEdit = nullptr;
     QWidget *m_formatterWidget;
-    float m_zoom;
     AppOutputSettings m_settings;
     bool m_filterRegexp = false;
     bool m_filterCaseSensitive = false;
diff --git a/src/plugins/projectexplorer/compileoutputwindow.cpp b/src/plugins/projectexplorer/compileoutputwindow.cpp
index cd633054c7..022a436d93 100644
--- a/src/plugins/projectexplorer/compileoutputwindow.cpp
+++ b/src/plugins/projectexplorer/compileoutputwindow.cpp
@@ -76,31 +76,11 @@ class CompileOutputTextEdit : public Core::OutputWindow
 {
     Q_OBJECT
 public:
-    CompileOutputTextEdit(const Core::Context &context) : Core::OutputWindow(context)
+    CompileOutputTextEdit(const Core::Context &context) : Core::OutputWindow(context, SETTINGS_KEY)
     {
-        setWheelZoomEnabled(true);
-
-        QSettings *settings = Core::ICore::settings();
-        float zoom = settings->value(QLatin1String(SETTINGS_KEY), 0).toFloat();
-        setFontZoom(zoom);
-
-        fontSettingsChanged();
-
-        connect(TextEditor::TextEditorSettings::instance(), &TextEditor::TextEditorSettings::fontSettingsChanged,
-                this, &CompileOutputTextEdit::fontSettingsChanged);
-
-        connect(Core::ICore::instance(), &Core::ICore::saveSettingsRequested,
-                this, &CompileOutputTextEdit::saveSettings);
-
         setMouseTracking(true);
     }
 
-    void saveSettings()
-    {
-        QSettings *settings = Core::ICore::settings();
-        settings->setValue(QLatin1String(SETTINGS_KEY), fontZoom());
-    }
-
     void addTask(const Task &task, int blocknumber)
     {
         m_taskids.insert(blocknumber, task.taskId);
@@ -110,11 +90,6 @@ public:
     {
         m_taskids.clear();
     }
-private:
-    void fontSettingsChanged()
-    {
-        setBaseFont(TextEditor::TextEditorSettings::fontSettings().font());
-    }
 
 protected:
     void mouseMoveEvent(QMouseEvent *ev) override
@@ -158,8 +133,6 @@ private:
 
 CompileOutputWindow::CompileOutputWindow(QAction *cancelBuildAction) :
     m_cancelBuildButton(new QToolButton),
-    m_zoomInButton(new QToolButton),
-    m_zoomOutButton(new QToolButton),
     m_settingsButton(new QToolButton),
     m_formatter(new Utils::OutputFormatter)
 {
@@ -185,23 +158,29 @@ CompileOutputWindow::CompileOutputWindow(QAction *cancelBuildAction) :
             Utils::ProxyAction::proxyActionWithIcon(cancelBuildAction,
                                                     Utils::Icons::STOP_SMALL_TOOLBAR.icon());
     m_cancelBuildButton->setDefaultAction(cancelBuildProxyButton);
-    m_zoomInButton->setToolTip(tr("Increase Font Size"));
-    m_zoomInButton->setIcon(Utils::Icons::PLUS_TOOLBAR.icon());
-    m_zoomOutButton->setToolTip(tr("Decrease Font Size"));
-    m_zoomOutButton->setIcon(Utils::Icons::MINUS.icon());
     m_settingsButton->setToolTip(tr("Open Settings Page"));
     m_settingsButton->setIcon(Utils::Icons::SETTINGS_TOOLBAR.icon());
 
+    auto updateFontSettings = [this] {
+        m_outputWindow->setBaseFont(TextEditor::TextEditorSettings::fontSettings().font());
+    };
+
+    auto updateZoomEnabled = [this] {
+        m_outputWindow->setWheelZoomEnabled(
+                    TextEditor::TextEditorSettings::behaviorSettings().m_scrollWheelZooming);
+    };
+
+    setZoomButtonsEnabled(true);
+    updateFontSettings();
     updateZoomEnabled();
 
-    connect(TextEditor::TextEditorSettings::instance(),
-            &TextEditor::TextEditorSettings::behaviorSettingsChanged,
-            this, &CompileOutputWindow::updateZoomEnabled);
+    connect(this, &IOutputPane::zoomIn, m_outputWindow, &Core::OutputWindow::zoomIn);
+    connect(this, &IOutputPane::zoomOut, m_outputWindow, &Core::OutputWindow::zoomOut);
+    connect(TextEditor::TextEditorSettings::instance(), &TextEditor::TextEditorSettings::fontSettingsChanged,
+            this, updateFontSettings);
+    connect(TextEditor::TextEditorSettings::instance(), &TextEditor::TextEditorSettings::behaviorSettingsChanged,
+            this, updateZoomEnabled);
 
-    connect(m_zoomInButton, &QToolButton::clicked,
-            this, [this]() { m_outputWindow->zoomIn(1); });
-    connect(m_zoomOutButton, &QToolButton::clicked,
-            this, [this]() { m_outputWindow->zoomOut(1); });
     connect(m_settingsButton, &QToolButton::clicked, this, [] {
         Core::ICore::showOptionsDialog(OPTIONS_PAGE_ID);
     });
@@ -223,22 +202,10 @@ CompileOutputWindow::~CompileOutputWindow()
     ExtensionSystem::PluginManager::removeObject(m_handler);
     delete m_handler;
     delete m_cancelBuildButton;
-    delete m_zoomInButton;
-    delete m_zoomOutButton;
     delete m_settingsButton;
     delete m_formatter;
 }
 
-void CompileOutputWindow::updateZoomEnabled()
-{
-    const TextEditor::BehaviorSettings &settings
-            = TextEditor::TextEditorSettings::behaviorSettings();
-    bool zoomEnabled  = settings.m_scrollWheelZooming;
-    m_zoomInButton->setEnabled(zoomEnabled);
-    m_zoomOutButton->setEnabled(zoomEnabled);
-    m_outputWindow->setWheelZoomEnabled(zoomEnabled);
-}
-
 void CompileOutputWindow::updateFromSettings()
 {
     m_outputWindow->setWordWrapEnabled(m_settings.wrapOutput);
@@ -267,7 +234,7 @@ QWidget *CompileOutputWindow::outputWidget(QWidget *)
 
 QList<QWidget *> CompileOutputWindow::toolBarWidgets() const
 {
-     return {m_cancelBuildButton, m_zoomInButton, m_zoomOutButton, m_settingsButton};
+    return QList<QWidget *>{m_cancelBuildButton, m_settingsButton} + IOutputPane::toolBarWidgets();
 }
 
 void CompileOutputWindow::appendText(const QString &text, BuildStep::OutputFormat format)
diff --git a/src/plugins/projectexplorer/compileoutputwindow.h b/src/plugins/projectexplorer/compileoutputwindow.h
index bf21345f70..05a660377a 100644
--- a/src/plugins/projectexplorer/compileoutputwindow.h
+++ b/src/plugins/projectexplorer/compileoutputwindow.h
@@ -91,14 +91,11 @@ private:
     void loadSettings();
     void storeSettings() const;
     void updateFromSettings();
-    void updateZoomEnabled();
 
     CompileOutputTextEdit *m_outputWindow;
     QHash<unsigned int, QPair<int, int>> m_taskPositions;
     ShowOutputTaskHandler *m_handler;
     QToolButton *m_cancelBuildButton;
-    QToolButton *m_zoomInButton;
-    QToolButton *m_zoomOutButton;
     QToolButton * const m_settingsButton;
     Utils::OutputFormatter *m_formatter;
     CompileOutputSettings m_settings;
diff --git a/src/plugins/serialterminal/serialoutputpane.cpp b/src/plugins/serialterminal/serialoutputpane.cpp
index befc7e51a5..34657313f1 100644
--- a/src/plugins/serialterminal/serialoutputpane.cpp
+++ b/src/plugins/serialterminal/serialoutputpane.cpp
@@ -305,7 +305,7 @@ void SerialOutputPane::createNewOutputWindow(SerialControl *rc)
     static uint counter = 0;
     Core::Id contextId = Core::Id(Constants::C_SERIAL_OUTPUT).withSuffix(counter++);
     Core::Context context(contextId);
-    Core::OutputWindow *ow = new Core::OutputWindow(context, m_tabWidget);
+    Core::OutputWindow *ow = new Core::OutputWindow(context, QString(), m_tabWidget);
     using TextEditor::TextEditorSettings;
     auto fontSettingsChanged = [ow] {
         ow->setBaseFont(TextEditorSettings::fontSettings().font());
diff --git a/src/plugins/vcsbase/vcsoutputwindow.cpp b/src/plugins/vcsbase/vcsoutputwindow.cpp
index a4fc9cbdd4..98af90bdf8 100644
--- a/src/plugins/vcsbase/vcsoutputwindow.cpp
+++ b/src/plugins/vcsbase/vcsoutputwindow.cpp
@@ -109,7 +109,7 @@ private:
 };
 
 OutputWindowPlainTextEdit::OutputWindowPlainTextEdit(QWidget *parent) :
-    Core::OutputWindow(Core::Context(C_VCS_OUTPUT_PANE), parent)
+    Core::OutputWindow(Core::Context(C_VCS_OUTPUT_PANE), QString(), parent)
 {
     setReadOnly(true);
     setUndoRedoEnabled(false);