Prevent stealing focus when scrolling.

src/app/puzzle/dialogs/configpages/puzzlepreferencesconfigurationpage.cpp

@@ -32,6 +32,7 @@
 #include "../vmisc/dialogs/vshortcutdialog.h"
 #include "../vmisc/theme/vtheme.h"
 #include "../vmisc/vabstractshortcutmanager.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "ui_puzzlepreferencesconfigurationpage.h"
 
 #include <QStyleHints>
@@ -43,6 +44,16 @@ PuzzlePreferencesConfigurationPage::PuzzlePreferencesConfigurationPage(QWidget *
 {
     ui->setupUi(this);
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->langCombo);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxThemeMode);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->undoCount);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxDuration);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxUpdateInterval);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSensor);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxWheel);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxAcceleration);
+
     InitLanguages(ui->langCombo);
     connect(ui->langCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), this,
             [this]() { m_langChanged = true; });

src/app/puzzle/vpmainwindow.cpp

@@ -59,6 +59,7 @@
 #include "../vmisc/theme/vtheme.h"
 #include "../vmisc/vsysexits.h"
 #include "../vwidgets/vmaingraphicsscene.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "dialogs/dialogpuzzlepreferences.h"
 #include "dialogs/dialogsavemanuallayout.h"
 #include "dialogs/vpdialogabout.h"
@@ -333,6 +334,31 @@ VPMainWindow::VPMainWindow(const VPCommandLinePtr &cmd, QWidget *parent)
 {
     ui->setupUi(this);
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxCurrentPieceBoxPositionX);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxCurrentPieceBoxPositionY);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxCurrentPieceAngle);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxLayoutUnit);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxSheetTemplates);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetPaperWidth);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetPaperHeight);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetMarginTop);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetMarginLeft);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetMarginRight);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetMarginBottom);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetGridColWidth);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetGridRowHeight);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxTileTemplates);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxTilePaperWidth);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxTilePaperHeight);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxTileMarginTop);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxTileMarginLeft);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxTileMarginRight);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxTileMarginBottom);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxSheetPiecesGap);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxHorizontalScale);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxVerticalScale);
+
     connect(m_layout.data(), &VPLayout::PieceSelectionChanged, this, &VPMainWindow::on_PieceSelectionChanged);
     connect(m_layout.data(), &VPLayout::LayoutChanged, this, [this]() { LayoutWasSaved(false); });
     connect(m_layout.data(), &VPLayout::PieceTransformationChanged, this,

src/app/tape/dialogs/configpages/tapepreferencesconfigurationpage.cpp

@@ -35,8 +35,10 @@
 #include "../vmisc/dialogs/vshortcutdialog.h"
 #include "../vmisc/theme/vtheme.h"
 #include "../vmisc/vabstractshortcutmanager.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "ui_tapepreferencesconfigurationpage.h"
 
+#include <QScrollBar>
 #include <QStyleHints>
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -49,6 +51,11 @@ TapePreferencesConfigurationPage::TapePreferencesConfigurationPage(QWidget *pare
     ui->setupUi(this);
     RetranslateUi();
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->langCombo);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxKnownMeasurements);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxThemeMode);
+
     InitLanguages(ui->langCombo);
     connect(ui->langCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), this,
             [this]() { m_langChanged = true; });

src/app/valentina/dialogs/configpages/preferencesconfigurationpage.cpp

@@ -35,6 +35,7 @@
 #include "../vmisc/theme/vtheme.h"
 #include "../vmisc/vabstractshortcutmanager.h"
 #include "../vmisc/vvalentinasettings.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "ui_preferencesconfigurationpage.h"
 #include "vcommonsettings.h"
 
@@ -52,6 +53,15 @@ PreferencesConfigurationPage::PreferencesConfigurationPage(QWidget *parent)
     ui->setupUi(this);
     RetranslateUi();
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->autoTime);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->langCombo);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxPieceLbelLanguage);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->unitCombo);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->labelCombo);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxThemeMode);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxPointerMode);
+
     ui->tabWidget->setCurrentIndex(0);
 
     // Tab General

src/app/valentina/dialogs/configpages/preferencespatternpage.cpp

@@ -35,6 +35,7 @@
 #include "../vmisc/vabstractvalapplication.h"
 #include "../vmisc/vvalentinasettings.h"
 #include "../vwidgets/vmaingraphicsview.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "svgfont/svgdef.h"
 #include "svgfont/vsvgfont.h"
 #include "svgfont/vsvgfontengine.h"
@@ -74,6 +75,18 @@ PreferencesPatternPage::PreferencesPatternPage(QWidget *parent)
     ui->setupUi(this);
     RetranslateUi();
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxCurveApproximation);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxLineWidth);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxLineWidthUnit);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->defaultSeamAllowance);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxLabelFontSize);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->fontComboBoxLabelFont);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxSingleLineFont);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxDateFormats);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxTimeFormats);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxOpacity);
+
     VValentinaSettings *settings = VAbstractValApplication::VApp()->ValentinaSettings();
 
     ui->graphOutputCheck->setChecked(settings->GetGraphicalOutput());

src/app/valentina/dialogs/dialoglayoutsettings.cpp

@@ -30,6 +30,7 @@
 #include "../vlayout/vlayoutgenerator.h"
 #include "../vmisc/vabstractvalapplication.h"
 #include "../vmisc/vvalentinasettings.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "ui_dialoglayoutsettings.h"
 
 #include <QMessageBox>
@@ -54,6 +55,22 @@ DialogLayoutSettings::DialogLayoutSettings(VLayoutGenerator *generator, QWidget
 {
     ui->setupUi(this);
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxTemplates);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxPaperWidth);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxPaperHeight);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxPaperSizeUnit);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxPaperSizeUnit);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxLeftField);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxRightField);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxTopField);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxBottomField);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxLayoutWidth);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxLayoutUnit);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxNestingTime);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxEfficiency);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxMultiplier);
+
     VAbstractValApplication::VApp()->ValentinaSettings()->GetOsSeparator() ? setLocale(QLocale())
                                                                            : setLocale(QLocale::c());
 
@@ -537,7 +554,8 @@ auto DialogLayoutSettings::PageToPixels(qreal value) const -> qreal
 auto DialogLayoutSettings::MakeGroupsHelp() -> QString
 {
     // that is REALLY dummy ... can't figure fast how to automate generation... :/
-    return tr("\n\tThree groups: big, middle, small = 0;\n\tTwo groups: big, small = 1;\n\tDescending area = 2");
+    return tr("\n\tThree groups: big, middle, small = 0;\n\tTwo groups: big, small = "
+              "1;\n\tDescending area = 2");
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/app/valentina/dialogs/vwidgetbackgroundimages.cpp

@@ -42,6 +42,7 @@
 #include "../vtools/undocommands/image/rotatebackgroundimage.h"
 #include "../vtools/undocommands/image/scalebackgroundimage.h"
 #include "../vtools/undocommands/image/zvaluemovebackgroundimage.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "ui_vwidgetbackgroundimages.h"
 
 #include <QMenu>
@@ -154,6 +155,15 @@ VWidgetBackgroundImages::VWidgetBackgroundImages(VAbstractPattern *doc, QWidget
 {
     ui->setupUi(this);
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxImageHorizontalTranslate);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxTranslateUnit);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxImageVerticalTranslate);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxScaleWidth);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxScaleUnit);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxScaleHeight);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxRotationAngle);
+
     SCASSERT(doc != nullptr)
 
     UpdateImages();

src/libs/vlayout/dialogs/watermarkwindow.cpp

@@ -44,6 +44,7 @@
 #include "../vmisc/def.h"
 #include "../vmisc/vabstractapplication.h"
 #include "../vpropertyexplorer/checkablemessagebox.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 4, 0)
 #include "../vmisc/compatibility.h"
@@ -58,6 +59,12 @@ WatermarkWindow::WatermarkWindow(const QString &patternPath, QWidget *parent)
     m_patternPath(patternPath)
 {
     ui->setupUi(this);
+
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxOpacity);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxTextRotation);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->spinBoxImageRotation);
+
     m_okPathColor = ui->lineEditPath->palette().color(ui->lineEditPath->foregroundRole());
 
     VAbstractApplication::VApp()->Settings()->GetOsSeparator() ? setLocale(QLocale()) : setLocale(QLocale::c());

src/libs/vtools/dialogs/tools/dialogsplinepath.cpp

@@ -59,6 +59,7 @@
 #include "../vpatterndb/vtranslatevars.h"
 #include "../vwidgets/vabstractmainwindow.h"
 #include "../vwidgets/vmaingraphicsscene.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "ui_dialogsplinepath.h"
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 4, 0)
@@ -79,6 +80,13 @@ DialogSplinePath::DialogSplinePath(const VContainer *data, VAbstractPattern *doc
 {
     ui->setupUi(this);
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxNewPoint);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxPoint);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxPenStyle);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBoxColor);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->doubleSpinBoxApproximationScale);
+
     InitIcons();
 
     formulaBaseHeightAngle1 = ui->plainTextEditAngle1F->height();

src/libs/vtools/dialogs/tools/piece/dialogseamallowance.cpp

@@ -50,6 +50,7 @@
 #include "../vpatterndb/vpiecenode.h"
 #include "../vpatterndb/vpiecepath.h"
 #include "../vwidgets/fancytabbar/fancytabbar.h"
+#include "../vwidgets/vmousewheelwidgetadjustmentguard.h"
 #include "dialogpatternmaterials.h"
 #include "dialogpiecepath.h"
 #include "dialogplacelabel.h"
@@ -203,6 +204,33 @@ DialogSeamAllowance::DialogSeamAllowance(const VContainer *data, VAbstractPatter
 
     InitIcons();
 
+    // Prevent stealing focus when scrolling
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabGrainline->comboBoxGrainlineCenterPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabGrainline->comboBoxGrainlineTopPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabGrainline->comboBoxGrainlineBottomPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabGrainline->comboBoxArrow);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxPieceLabelSize);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxDLCenterPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxDLTopLeftPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxDLBottomRightPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxPatternLabelSize);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxPLCenterPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxPLTopLeftPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxPLBottomRightPin);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->dateEditCustomerBirthDate);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxDateFormat);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->comboBoxTimeFormat);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabLabels->spinBoxQuantity);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPassmarks->comboBoxPassmarks);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->comboBoxMLStartPoint);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->comboBoxMLEndPoint);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->spinBoxPriority);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->comboBoxNodes);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->comboBoxAngle);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->comboBoxStartPoint);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->comboBoxEndPoint);
+    VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(uiTabPaths->comboBoxIncludeType);
+
     ChangeColor(uiTabPaths->labelEditName, OkColor(this));
     flagMainPathIsValid = MainPathIsValid();
 

src/libs/vwidgets/vmousewheelwidgetadjustmentguard.cpp

@@ -0,0 +1,62 @@
+/************************************************************************
+ **
+ **  @file   vmousewheelwidgetadjustmentguard.cpp
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   31 1, 2024
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentina project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2024 Valentina project
+ **  <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
+ **
+ **  Valentina is free software: you can redistribute it and/or modify
+ **  it under the terms of the GNU General Public License as published by
+ **  the Free Software Foundation, either version 3 of the License, or
+ **  (at your option) any later version.
+ **
+ **  Valentina is distributed in the hope that it will be useful,
+ **  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ **  GNU General Public License for more details.
+ **
+ **  You should have received a copy of the GNU General Public License
+ **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+#include "vmousewheelwidgetadjustmentguard.h"
+
+#include <QEvent>
+#include <QWidget>
+
+//---------------------------------------------------------------------------------------------------------------------
+VMouseWheelWidgetAdjustmentGuard::VMouseWheelWidgetAdjustmentGuard(QObject *parent)
+  : QObject{parent}
+{
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(QWidget *w)
+{
+    if (w == nullptr)
+    {
+        return;
+    }
+
+    w->setFocusPolicy(Qt::StrongFocus);
+    w->installEventFilter(new VMouseWheelWidgetAdjustmentGuard(w));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+auto VMouseWheelWidgetAdjustmentGuard::eventFilter(QObject *o, QEvent *e) -> bool
+{
+    const QWidget *widget = qobject_cast<QWidget *>(o);
+    if (e->type() == QEvent::Wheel && (widget != nullptr) && !widget->hasFocus())
+    {
+        e->ignore();
+        return true;
+    }
+
+    return QObject::eventFilter(o, e);
+}

src/libs/vwidgets/vmousewheelwidgetadjustmentguard.h

@@ -0,0 +1,56 @@
+/************************************************************************
+ **
+ **  @file   vmousewheelwidgetadjustmentguard.h
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   31 1, 2024
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentina project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2024 Valentina project
+ **  <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
+ **
+ **  Valentina is free software: you can redistribute it and/or modify
+ **  it under the terms of the GNU General Public License as published by
+ **  the Free Software Foundation, either version 3 of the License, or
+ **  (at your option) any later version.
+ **
+ **  Valentina is distributed in the hope that it will be useful,
+ **  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ **  GNU General Public License for more details.
+ **
+ **  You should have received a copy of the GNU General Public License
+ **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+#ifndef VMOUSEWHEELWIDGETADJUSTMENTGUARD_H
+#define VMOUSEWHEELWIDGETADJUSTMENTGUARD_H
+
+#include "qtclasshelpermacros.h"
+#include <QObject>
+
+// Helps to prevent widget from stealing scroll event.
+// Install event filter
+// Example:
+// VMouseWheelWidgetAdjustmentGuard::InstallEventFilter(ui->comboBox);
+
+class VMouseWheelWidgetAdjustmentGuard : public QObject
+{
+    Q_OBJECT // NOLINT
+
+public:
+    explicit VMouseWheelWidgetAdjustmentGuard(QObject *parent = nullptr);
+    ~VMouseWheelWidgetAdjustmentGuard() override = default;
+
+    static void InstallEventFilter(QWidget *w);
+
+protected:
+    auto eventFilter(QObject *o, QEvent *e) -> bool override;
+
+private:
+    Q_DISABLE_COPY_MOVE(VMouseWheelWidgetAdjustmentGuard) // NOLINT
+};
+
+#endif // VMOUSEWHEELWIDGETADJUSTMENTGUARD_H

src/libs/vwidgets/vwidgets.pri

@@ -31,7 +31,8 @@ SOURCES += \
     $$PWD/vhighlighter.cpp \
     $$PWD/vpiecegrainline.cpp \
     $$PWD/vtoolbuttonpopup.cpp \
-    $$PWD/vaspectratiopixmaplabel.cpp
+    $$PWD/vaspectratiopixmaplabel.cpp \
+    $$PWD/vmousewheelwidgetadjustmentguard.cpp
         
 *msvc*:SOURCES += $$PWD/stable.cpp
 
@@ -67,5 +68,6 @@ HEADERS += \
     $$PWD/vpiecegrainline.h \
     $$PWD/vpiecegrainline_p.h \
     $$PWD/vtoolbuttonpopup.h \
-    $$PWD/vaspectratiopixmaplabel.h
+    $$PWD/vaspectratiopixmaplabel.h \
+    $$PWD/vmousewheelwidgetadjustmentguard.h
 

src/libs/vwidgets/vwidgets.qbs

@@ -21,6 +21,8 @@ VLib {
         "velidedlabel.cpp",
         "vmaingraphicsscene.cpp",
         "vmaingraphicsview.cpp",
+        "vmousewheelwidgetadjustmentguard.cpp",
+        "vmousewheelwidgetadjustmentguard.h",
         "vtoolbuttonpopup.cpp",
         "vtoolbuttonpopup.h",
         "vwidgetpopup.cpp",