Add lock guide action in new guides list widget, with tooltip info

src/mainwindow.cpp

@@ -1794,6 +1794,9 @@ void MainWindow::setupActions()
         addAction(QStringLiteral("lock_guides"), i18n("Guides Locked"), this, SLOT(slotLockGuides(bool)), QIcon::fromTheme(QStringLiteral("kdenlive-lock")));
     lockGuides->setCheckable(true);
     lockGuides->setChecked(KdenliveSettings::lockedGuides());
+    lockGuides->setToolTip(i18n("Lock guides"));
+    lockGuides->setWhatsThis(
+        xi18nc("@info:whatsthis", "Lock guides. When locked, the guides won't move when using the spacer tool or inserting/removing blank in tracks."));
 
     addAction(QStringLiteral("delete_all_guides"), i18n("Delete All Guides"), this, SLOT(slotDeleteAllGuides()),
               QIcon::fromTheme(QStringLiteral("edit-delete")));

src/project/dialogs/guideslist.cpp

@@ -277,6 +277,7 @@ GuidesList::~GuidesList() = default;
 void GuidesList::setClipMarkerModel(std::shared_ptr<ProjectClip> clip)
 {
     m_markerMode = true;
+    guides_lock->setVisible(false);
     if (clip == m_clip) {
         return;
     }
@@ -316,6 +317,11 @@ void GuidesList::setModel(std::weak_ptr<MarkerListModel> model, std::shared_ptr<
     m_model = std::move(model);
     setEnabled(true);
     guideslist_label->setText(i18n("Timeline Guides"));
+    if (!guides_lock->defaultAction()) {
+        QAction *action = pCore->window()->actionCollection()->action("lock_guides");
+        guides_lock->setDefaultAction(action);
+    }
+    guides_lock->setVisible(true);
     m_sortModel = viewModel.get();
     m_proxy->setSourceModel(m_sortModel);
     guides_list->setModel(m_proxy);

src/ui/guideslist_ui.ui

@@ -74,6 +74,19 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="QToolButton" name="guides_lock">
+       <property name="text">
+        <string>...</string>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+       <property name="autoRaise">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
      <item>
       <spacer name="horizontalSpacer">
        <property name="orientation">
@@ -153,16 +166,16 @@
   </layout>
  </widget>
  <customwidgets>
-  <customwidget>
-   <class>KSqueezedTextLabel</class>
-   <extends>QLabel</extends>
-   <header>ksqueezedtextlabel.h</header>
-  </customwidget>
   <customwidget>
    <class>MarkerCategoryButton</class>
    <extends>QToolButton</extends>
    <header>widgets/markercategorybutton.h</header>
   </customwidget>
+  <customwidget>
+   <class>KSqueezedTextLabel</class>
+   <extends>QLabel</extends>
+   <header>ksqueezedtextlabel.h</header>
+  </customwidget>
  </customwidgets>
  <tabstops>
   <tabstop>filter_line</tabstop>