Add "remove virtual displays on disable" option

kwin/src/breezydesktopconfig.kcfg

@@ -57,5 +57,10 @@
             <label>Antialiasing Quality</label>
             <description>0=None, 1=Medium, 2=High, 3=Very High</description>
         </entry>
+        <entry name="RemoveVirtualDisplaysOnDisable" type="Bool">
+            <default>true</default>
+            <label>Remove virtual displays on disable</label>
+            <description>Whether to remove any virtual displays when the effect is disabled</description>
+        </entry>
     </group>
 </kcfg>

kwin/src/breezydesktopeffect.cpp

@@ -204,11 +204,13 @@ void BreezyDesktopEffect::reconfigure(ReconfigureFlags)
     qreal vert = BreezyDesktopConfig::displayVerticalOffset() / 100.0f;
     int wrap = BreezyDesktopConfig::displayWrappingScheme();
     int aaQuality = BreezyDesktopConfig::antialiasingQuality();
+    bool removeVD = BreezyDesktopConfig::removeVirtualDisplaysOnDisable();
     bool changed = false;
     if (!qFuzzyCompare(m_displayHorizontalOffset, horiz)) { m_displayHorizontalOffset = horiz; changed = true; }
     if (!qFuzzyCompare(m_displayVerticalOffset, vert)) { m_displayVerticalOffset = vert; changed = true; }
     if (m_displayWrappingScheme != wrap) { m_displayWrappingScheme = wrap; Q_EMIT displayWrappingSchemeChanged(); }
     if (m_antialiasingQuality != aaQuality) { m_antialiasingQuality = aaQuality; Q_EMIT antialiasingQualityChanged(); }
+    if (m_removeVirtualDisplaysOnDisable != removeVD) { m_removeVirtualDisplaysOnDisable = removeVD; Q_EMIT removeVirtualDisplaysOnDisableChanged(); }
     if (changed) Q_EMIT displayOffsetChanged();
 }
 
@@ -260,10 +262,12 @@ void BreezyDesktopEffect::deactivate()
     m_cursorUpdateTimer->stop();
     showCursor();
 
-    for (auto output : m_virtualOutputs) {
-        KWin::kwinApp()->outputBackend()->removeVirtualOutput(output);
+    if (m_removeVirtualDisplaysOnDisable) {
+        for (auto output : m_virtualOutputs) {
+            KWin::kwinApp()->outputBackend()->removeVirtualOutput(output);
+        }
+        m_virtualOutputs.clear();
     }
-    m_virtualOutputs.clear();
 
     setRunning(false);
 }
@@ -414,6 +418,10 @@ int BreezyDesktopEffect::antialiasingQuality() const {
     return m_antialiasingQuality;
 }
 
+bool BreezyDesktopEffect::removeVirtualDisplaysOnDisable() const {
+    return m_removeVirtualDisplaysOnDisable;
+}
+
 bool BreezyDesktopEffect::checkParityByte(const char* data) {
     const uint8_t parityByte = static_cast<uint8_t>(data[DataView::IMU_PARITY_BYTE[DataView::OFFSET_INDEX]]);
     uint8_t parity = 0;

kwin/src/breezydesktopeffect.h

@@ -36,6 +36,7 @@ namespace KWin
         Q_PROPERTY(bool sbsEnabled READ sbsEnabled NOTIFY devicePropertiesChanged)
         Q_PROPERTY(bool customBannerEnabled READ customBannerEnabled NOTIFY devicePropertiesChanged)
         Q_PROPERTY(int antialiasingQuality READ antialiasingQuality NOTIFY antialiasingQualityChanged)
+        Q_PROPERTY(bool removeVirtualDisplaysOnDisable READ removeVirtualDisplaysOnDisable NOTIFY removeVirtualDisplaysOnDisableChanged)
 
     public:
 
@@ -73,6 +74,7 @@ namespace KWin
         bool sbsEnabled() const;
         bool customBannerEnabled() const;
         int antialiasingQuality() const;
+        bool removeVirtualDisplaysOnDisable() const;
 
         void showCursor();
         void hideCursor();
@@ -101,6 +103,7 @@ namespace KWin
         void cursorPosChanged();
         void devicePropertiesChanged();
         void antialiasingQualityChanged();
+        void removeVirtualDisplaysOnDisableChanged();
 
     protected:
         QVariantMap initialProperties(Output *screen) override;
@@ -138,6 +141,7 @@ namespace KWin
         qreal m_displayVerticalOffset = 0.0;
         int m_displayWrappingScheme = 0; // 0=auto,1=horizontal,2=vertical,3=flat
         int m_antialiasingQuality = 3; // 0=None, 1=Medium, 2=High, 3=VeryHigh
+        bool m_removeVirtualDisplaysOnDisable = true;
         QList<Output *> m_virtualOutputs;
     };
 

kwin/src/kcm/breezydesktopeffectkcm.cpp

@@ -60,6 +60,10 @@ BreezyDesktopEffectConfig::BreezyDesktopEffectConfig(QObject *parent, const KPlu
             row->setVisible(true);
             row->setEnabled(true);
         }
+        if (auto chk = widget()->findChild<QWidget*>(QStringLiteral("kcfg_RemoveVirtualDisplaysOnDisable"))) {
+            chk->setVisible(true);
+            chk->setEnabled(true);
+        }
     }
 
     m_statePollTimer.setInterval(2000);
@@ -93,6 +97,7 @@ BreezyDesktopEffectConfig::BreezyDesktopEffectConfig(QObject *parent, const KPlu
     addShortcutAction(actionCollection, BreezyShortcuts::TOGGLE_ZOOM_ON_FOCUS);
     ui.shortcutsEditor->addCollection(actionCollection);
     connect(ui.shortcutsEditor, &KShortcutsEditor::keyChange, this, &BreezyDesktopEffectConfig::markAsChanged);
+    connect(ui.kcfg_ZoomOnFocusEnabled, &QCheckBox::toggled, this, &BreezyDesktopEffectConfig::save);
     connect(ui.kcfg_FocusedDisplayDistance, &QSlider::valueChanged, this, &BreezyDesktopEffectConfig::save);
     connect(ui.kcfg_AllDisplaysDistance, &QSlider::valueChanged, this, &BreezyDesktopEffectConfig::save);
     connect(ui.kcfg_DisplaySpacing, &QSlider::valueChanged, this, &BreezyDesktopEffectConfig::save);
@@ -100,6 +105,7 @@ BreezyDesktopEffectConfig::BreezyDesktopEffectConfig(QObject *parent, const KPlu
     connect(ui.kcfg_DisplayVerticalOffset, &QSlider::valueChanged, this, &BreezyDesktopEffectConfig::save);
     connect(ui.kcfg_DisplayWrappingScheme, qOverload<int>(&QComboBox::currentIndexChanged), this, &BreezyDesktopEffectConfig::save);
     connect(ui.kcfg_AntialiasingQuality, qOverload<int>(&QComboBox::currentIndexChanged), this, &BreezyDesktopEffectConfig::save);
+    connect(ui.kcfg_RemoveVirtualDisplaysOnDisable, &QCheckBox::toggled, this, &BreezyDesktopEffectConfig::save);
 
     if (auto label = widget()->findChild<QLabel*>("labelAppNameVersion")) {
         label->setText(QStringLiteral("Breezy Desktop - v%1").arg(QLatin1String(BREEZY_DESKTOP_VERSION_STR)));
@@ -219,6 +225,7 @@ void BreezyDesktopEffectConfig::updateUiFromConfig()
     ui.kcfg_DisplayVerticalOffset->setValue(BreezyDesktopConfig::self()->displayVerticalOffset());
     ui.kcfg_DisplayWrappingScheme->setCurrentIndex(BreezyDesktopConfig::self()->displayWrappingScheme());
     ui.kcfg_AntialiasingQuality->setCurrentIndex(BreezyDesktopConfig::self()->antialiasingQuality());
+    ui.kcfg_RemoveVirtualDisplaysOnDisable->setChecked(BreezyDesktopConfig::self()->removeVirtualDisplaysOnDisable());
     ui.kcfg_ZoomOnFocusEnabled->setChecked(BreezyDesktopConfig::self()->zoomOnFocusEnabled());
     ui.kcfg_FocusedDisplayDistance->setEnabled(ui.kcfg_ZoomOnFocusEnabled->isChecked());
 }

kwin/src/kcm/breezydesktopeffectkcm.ui

@@ -308,6 +308,20 @@
           </property>
           </widget>
         </item>
+        <item row="4" column="0" colspan="2">
+          <widget class="QCheckBox" name="kcfg_RemoveVirtualDisplaysOnDisable">
+            <property name="visible">
+              <bool>false</bool>
+            </property>
+            <property name="enabled">
+              <bool>false</bool>
+            </property>
+            <property name="text">
+              <string>Remove virtual displays on disable</string>
+            </property>
+            <property name="checked"><bool>true</bool></property>
+          </widget>
+        </item>
       </layout>
      </widget>
    <widget class="QWidget" name="tabLicenseDetails">
@@ -321,10 +335,10 @@
       <string/>
       </property>
       <property name="wordWrap">
-      <bool>true</bool>
+        <bool>true</bool>
       </property>
       <property name="visible">
-      <bool>true</bool>
+        <bool>true</bool>
       </property>
      </widget>
     </item>