fixed the add button not wrapping the notebook

src/widgets/helper/notebookbutton.cpp

@@ -45,12 +45,20 @@ void NotebookButton::paintEvent(QPaintEvent *)
     float h = height(), w = width();
 
     if (icon == IconPlus) {
-        painter.fillRect(
-            QRectF((h / 12) * 2 + 1, (h / 12) * 5 + 1, w - ((h / 12) * 5), (h / 12) * 1),
-            foreground);
-        painter.fillRect(
-            QRectF((h / 12) * 5 + 1, (h / 12) * 2 + 1, (h / 12) * 1, w - ((h / 12) * 5)),
-            foreground);
+        painter.setPen([&] {
+            QColor tmp = foreground;
+            if (!this->mouseOver) {
+                tmp.setAlpha(180);
+            }
+            return tmp;
+        }());
+        QRect rect = this->rect();
+        int s = h * 4 / 9;
+
+        painter.drawLine(rect.left() + rect.width() / 2 - (s / 2), rect.top() + rect.height() / 2,
+                         rect.left() + rect.width() / 2 + (s / 2), rect.top() + rect.height() / 2);
+        painter.drawLine(rect.left() + rect.width() / 2, rect.top() + rect.height() / 2 - (s / 2),
+                         rect.left() + rect.width() / 2, rect.top() + rect.height() / 2 + (s / 2));
     } else if (icon == IconUser) {
         painter.setRenderHint(QPainter::Antialiasing);
         painter.setRenderHint(QPainter::HighQualityAntialiasing);

src/widgets/notebook.cpp

@@ -90,7 +90,7 @@ void Notebook::removePage(QWidget *page)
         }
     }
 
-    this->performLayout();
+    this->performLayout(true);
 }
 
 void Notebook::removeCurrentPage()
@@ -262,7 +262,7 @@ void Notebook::rearrangePage(QWidget *page, int index)
 {
     this->items.move(this->indexOf(page), index);
 
-    this->performLayout();
+    this->performLayout(true);
 }
 
 bool Notebook::getAllowUserTabManagement() const
@@ -307,7 +307,7 @@ void Notebook::performLayout(bool animated)
 {
     auto app = getApp();
 
-    int xStart = (int)(2 * this->getScale());
+    int xStart = int(2 * this->getScale());
 
     int x = xStart, y = 0;
     float scale = this->getScale();
@@ -349,12 +349,12 @@ void Notebook::performLayout(bool animated)
     for (auto i = this->items.begin(); i != this->items.end(); i++) {
         //        int yOffset = i->tab->isSelected() ? 0 : 1;
 
-        if (!first &&
-            (i == this->items.end() && this->showAddButton ? tabHeight : 0) + x + i->tab->width() >
-                width())  //
-        {
+        bool wrap =
+            !first && (((i + 1 == this->items.end() && this->showAddButton) ? tabHeight : 0) + x +
+                       i->tab->width()) > width();
+
+        if (wrap) {
             y += i->tab->height();
-            //            y += 20;
             i->tab->moveAnimated(QPoint(xStart, y), animated);
             x = i->tab->width() + xStart;
         } else {
@@ -376,7 +376,7 @@ void Notebook::performLayout(bool animated)
         this->update();
     }
 
-    y += (int)(3 * scale);
+    y += int(3 * scale);
 
     for (auto &i : this->items) {
         i.tab->raise();

src/widgets/notebook.hpp

@@ -45,7 +45,7 @@ public:
     bool getShowAddButton() const;
     void setShowAddButton(bool value);
 
-    void performLayout(bool animate = true);
+    void performLayout(bool animate = false);
 
 protected:
     virtual void scaleChangedEvent(float scale) override;

src/widgets/split.cpp

@@ -311,6 +311,10 @@ void Split::enterEvent(QEvent *event)
     if (modifierStatus == showSplitOverlayModifiers /*|| modifierStatus == showAddSplitRegions*/) {
         this->overlay->show();
     }
+
+    if (this->container != nullptr) {
+        this->container->resetMouseStatus();
+    }
 }
 
 void Split::leaveEvent(QEvent *event)

src/widgets/splitcontainer.cpp

@@ -97,6 +97,12 @@ void SplitContainer::hideResizeHandles()
     }
 }
 
+void SplitContainer::resetMouseStatus()
+{
+    this->mouseOverPoint = QPoint(-10000, -10000);
+    this->update();
+}
+
 void SplitContainer::appendNewSplit(bool openChannelNameDialog)
 {
     util::assertInGuiThread();
@@ -468,6 +474,10 @@ void SplitContainer::dragEnterEvent(QDragEnterEvent *event)
 
 void SplitContainer::mouseMoveEvent(QMouseEvent *event)
 {
+    if (Split::modifierStatus == showSplitOverlayModifiers) {
+        this->setCursor(Qt::PointingHandCursor);
+    }
+
     this->mouseOverPoint = event->pos();
     this->update();
 }

src/widgets/splitcontainer.hpp

@@ -188,6 +188,7 @@ public:
 
     void setTab(NotebookTab *tab);
     void hideResizeHandles();
+    void resetMouseStatus();
 
     static bool isDraggingSplit;
     static Split *draggingSplit;