From 25d282baa28a57ef394894a49d1cb9ef7079f927 Mon Sep 17 00:00:00 2001
From: Ivailo Monev <xakepa10@gmail.com>
Date: Thu, 5 Oct 2023 06:35:55 +0300
Subject: [PATCH] plasma: update geometry of pager widgets on layout
 orientation change

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
---
 plasma/applets/pager/pager.cpp | 16 ++++++++++++----
 plasma/applets/pager/pager.h   |  2 +-
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/plasma/applets/pager/pager.cpp b/plasma/applets/pager/pager.cpp
index e349f5ad..9de932f2 100644
--- a/plasma/applets/pager/pager.cpp
+++ b/plasma/applets/pager/pager.cpp
@@ -121,6 +121,10 @@ private:
     bool m_hovered;
     Plasma::FrameSvg* m_framesvg;
     PagerApplet::PagerMode m_pagermode;
+
+    // updateGeometry() is protected but size hint is based on orientation and geometry has to be
+    // updated on layout orientation change
+    friend PagerApplet;
 };
 
 PagerSvg::PagerSvg(const int desktop, const PagerApplet::PagerMode pagermode, QGraphicsItem *parent)
@@ -393,12 +397,12 @@ void PagerApplet::constraintsEvent(Plasma::Constraints constraints)
         switch (formFactor()) {
             case Plasma::FormFactor::Horizontal: {
                 m_layout->setOrientation(Qt::Horizontal);
-                updatePolicy();
+                updatePolicyAndPagers();
                 return;
             }
             case Plasma::FormFactor::Vertical: {
                 m_layout->setOrientation(Qt::Vertical);
-                updatePolicy();
+                updatePolicyAndPagers();
                 return;
             }
             default: {
@@ -412,17 +416,21 @@ void PagerApplet::constraintsEvent(Plasma::Constraints constraints)
         } else {
             m_layout->setOrientation(Qt::Vertical);
         }
-        updatePolicy();
+        updatePolicyAndPagers();
     }
 }
 
-void PagerApplet::updatePolicy()
+void PagerApplet::updatePolicyAndPagers()
 {
     if (m_layout->orientation() == Qt::Horizontal) {
         setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);
     } else {
         setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
     }
+    QMutexLocker locker(&m_mutex);
+    foreach (PagerSvg* pagersvg, m_pagersvgs) {
+        pagersvg->updateGeometry();
+    }
 }
 
 void PagerApplet::slotUpdateLayout()
diff --git a/plasma/applets/pager/pager.h b/plasma/applets/pager/pager.h
index d666c132..ba25819e 100644
--- a/plasma/applets/pager/pager.h
+++ b/plasma/applets/pager/pager.h
@@ -61,7 +61,7 @@ protected:
     void constraintsEvent(Plasma::Constraints constraints) final;
 
 private:
-    void updatePolicy();
+    void updatePolicyAndPagers();
 
     QMutex m_mutex;
     QGraphicsLinearLayout* m_layout;