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Tab with options to control Scrolling settings. ref #831.

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Empiric settings do not work for all.

--HG--
branch : develop
This commit is contained in:
Roman Telezhynskyi 2018-05-11 12:42:20 +03:00
parent 1e0b777bd6
commit 2ee75fdbab
7 changed files with 664 additions and 255 deletions
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42
src/app/valentina/dialogs/configpages/preferencesconfigurationpage.cpp
View File

@ -45,6 +45,10 @@ PreferencesConfigurationPage::PreferencesConfigurationPage(QWidget *parent)
m_labelLangChanged(false)
{
ui->setupUi(this);
ui->tabWidget->setCurrentIndex(0);
// Tab General
ui->autoSaveCheck->setChecked(qApp->ValentinaSettings()->GetAutosaveState());
InitLanguages(ui->langCombo);
@ -107,11 +111,34 @@ PreferencesConfigurationPage::PreferencesConfigurationPage(QWidget *parent)
settings->SetConfirmFormatRewriting(true);
});
ui->checkBoxFreeCurve->setChecked(qApp->ValentinaSettings()->IsFreeCurveMode());
ui->checkBoxZoomFitBestCurrentPP->setChecked(qApp->ValentinaSettings()->IsDoubleClickZoomFitBestCurrentPP());
VSettings *settings = qApp->ValentinaSettings();
ui->checkBoxFreeCurve->setChecked(settings->IsFreeCurveMode());
ui->checkBoxZoomFitBestCurrentPP->setChecked(settings->IsDoubleClickZoomFitBestCurrentPP());
//----------------------- Toolbar
ui->toolBarStyleCheck->setChecked(qApp->ValentinaSettings()->GetToolBarStyle());
ui->toolBarStyleCheck->setChecked(settings->GetToolBarStyle());
// Tab Scrolling
ui->spinBoxDuration->setMinimum(VSettings::scrollingDurationMin);
ui->spinBoxDuration->setMaximum(VSettings::scrollingDurationMax);
ui->spinBoxDuration->setValue(settings->GetScrollingDuration());
ui->spinBoxUpdateInterval->setMinimum(VSettings::scrollingUpdateIntervalMin);
ui->spinBoxUpdateInterval->setMaximum(VSettings::scrollingUpdateIntervalMin);
ui->spinBoxUpdateInterval->setValue(settings->GetScrollingUpdateInterval());
ui->doubleSpinBoxSensor->setMinimum(VSettings::sensorMouseScaleMin);
ui->doubleSpinBoxSensor->setMaximum(VSettings::sensorMouseScaleMax);
ui->doubleSpinBoxSensor->setValue(settings->GetSensorMouseScale());
ui->doubleSpinBoxWheel->setMinimum(VSettings::wheelMouseScaleMin);
ui->doubleSpinBoxWheel->setMaximum(VSettings::wheelMouseScaleMax);
ui->doubleSpinBoxWheel->setValue(settings->GetWheelMouseScale());
ui->doubleSpinBoxAcceleration->setMinimum(VSettings::scrollingAccelerationMin);
ui->doubleSpinBoxAcceleration->setMaximum(VSettings::scrollingAccelerationMax);
ui->doubleSpinBoxAcceleration->setValue(settings->GetScrollingAcceleration());
}
//---------------------------------------------------------------------------------------------------------------------
@ -123,6 +150,7 @@ PreferencesConfigurationPage::~PreferencesConfigurationPage()
//---------------------------------------------------------------------------------------------------------------------
QStringList PreferencesConfigurationPage::Apply()
{
// Tab General
QStringList preferences;
VSettings *settings = qApp->ValentinaSettings();
settings->SetAutosaveState(ui->autoSaveCheck->isChecked());
@ -163,6 +191,14 @@ QStringList PreferencesConfigurationPage::Apply()
settings->SetLabelLanguage(locale);
m_labelLangChanged = false;
}
// Tab Scrolling
settings->SetScrollingDuration(ui->spinBoxDuration->value());
settings->SetScrollingUpdateInterval(ui->spinBoxUpdateInterval->value());
settings->SetSensorMouseScale(ui->doubleSpinBoxSensor->value());
settings->SetWheelMouseScale(ui->doubleSpinBoxWheel->value());
settings->SetScrollingAcceleration(ui->doubleSpinBoxAcceleration->value());
return preferences;
}

201
src/app/valentina/dialogs/configpages/preferencesconfigurationpage.ui
View File

@ -6,13 +6,23 @@
<rect>
<x>0</x>
<y>0</y>
<width>501</width>
<height>611</height>
<width>516</width>
<height>691</height>
</rect>
</property>
<property name="windowTitle">
<string notr="true">Configuration</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<widget class="QTabWidget" name="tabWidget">
<property name="currentIndex">
<number>0</number>
</property>
<widget class="QWidget" name="tabGeneral">
<attribute name="title">
<string>General</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QGroupBox" name="saveGroup">
@ -247,6 +257,193 @@
</item>
</layout>
</widget>
<widget class="QWidget" name="tabScrolling">
<attribute name="title">
<string>Scrolling</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_5">
<item>
<widget class="QGroupBox" name="groupBox">
<property name="title">
<string>Animation</string>
</property>
<layout class="QFormLayout" name="formLayout_3">
<property name="fieldGrowthPolicy">
<enum>QFormLayout::ExpandingFieldsGrow</enum>
</property>
<item row="0" column="0">
<widget class="QLabel" name="label_8">
<property name="text">
<string>Duration:</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QSpinBox" name="spinBoxDuration">
<property name="toolTip">
<string>Scrolling animation duration</string>
</property>
<property name="suffix">
<string comment="milliseconds">ms</string>
</property>
<property name="minimum">
<number>100</number>
</property>
<property name="maximum">
<number>1000</number>
</property>
<property name="value">
<number>300</number>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_10">
<property name="text">
<string>Update interval:</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QSpinBox" name="spinBoxUpdateInterval">
<property name="toolTip">
<string>Time in milliseconds between each animation update</string>
</property>
<property name="suffix">
<string comment="milliseconds">ms</string>
</property>
<property name="minimum">
<number>10</number>
</property>
<property name="maximum">
<number>100</number>
</property>
<property name="value">
<number>30</number>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox_4">
<property name="title">
<string>Mouse scale</string>
</property>
<layout class="QFormLayout" name="formLayout_4">
<property name="fieldGrowthPolicy">
<enum>QFormLayout::ExpandingFieldsGrow</enum>
</property>
<item row="0" column="0">
<widget class="QLabel" name="label_11">
<property name="text">
<string comment="sensor mouse">Sensor:</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QDoubleSpinBox" name="doubleSpinBoxSensor">
<property name="toolTip">
<string>Scale scrolling sensitivity for mouse with sensor</string>
</property>
<property name="minimum">
<double>1.000000000000000</double>
</property>
<property name="maximum">
<double>10.000000000000000</double>
</property>
<property name="singleStep">
<double>0.100000000000000</double>
</property>
<property name="value">
<double>2.000000000000000</double>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_12">
<property name="text">
<string comment="mouse wheel">Wheel:</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QDoubleSpinBox" name="doubleSpinBoxWheel">
<property name="toolTip">
<string>Scale scrolling sensitivity for mouse with wheel</string>
</property>
<property name="minimum">
<double>1.000000000000000</double>
</property>
<property name="maximum">
<double>100.000000000000000</double>
</property>
<property name="singleStep">
<double>0.100000000000000</double>
</property>
<property name="value">
<double>45.000000000000000</double>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox_7">
<property name="title">
<string>Scrolling</string>
</property>
<layout class="QFormLayout" name="formLayout_5">
<property name="fieldGrowthPolicy">
<enum>QFormLayout::ExpandingFieldsGrow</enum>
</property>
<item row="0" column="0">
<widget class="QLabel" name="label_13">
<property name="text">
<string>Acceleration:</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QDoubleSpinBox" name="doubleSpinBoxAcceleration">
<property name="minimum">
<double>1.000000000000000</double>
</property>
<property name="maximum">
<double>10.000000000000000</double>
</property>
<property name="singleStep">
<double>0.100000000000000</double>
</property>
<property name="value">
<double>1.300000000000000</double>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="verticalSpacer_2">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
</layout>
</widget>
</widget>
</item>
</layout>
</widget>
<resources/>
<connections/>
</ui>

2
src/app/valentina/mainwindow.cpp
View File

@ -4739,6 +4739,8 @@ void MainWindow::Preferences()
&VToolOptionsPropertyBrowser::RefreshOptions);
connect(dlg.data(), &DialogPreferences::UpdateProperties, this, &MainWindow::ToolBarStyles);
connect(dlg.data(), &DialogPreferences::UpdateProperties, this, [this](){emit doc->FullUpdateFromFile();});
connect(dlg.data(), &DialogPreferences::UpdateProperties, ui->view,
&VMainGraphicsView::ResetScrollingAnimation);
QGuiApplication::restoreOverrideCursor();
if (guard->exec() == QDialog::Accepted)

115
src/libs/vmisc/vsettings.cpp
View File

@ -46,6 +46,26 @@
Q_DECLARE_METATYPE(QMarginsF)
const int VSettings::defaultScrollingDuration = 300;
const int VSettings::scrollingDurationMin = 100;
const int VSettings::scrollingDurationMax = 1000;
const int VSettings::defaultScrollingUpdateInterval = 30;
const int VSettings::scrollingUpdateIntervalMin = 10;
const int VSettings::scrollingUpdateIntervalMax = 100;
const qreal VSettings::defaultSensorMouseScale = 2.0;
const qreal VSettings::sensorMouseScaleMin = 1.0;
const qreal VSettings::sensorMouseScaleMax = 10.0;
const qreal VSettings::defaultWheelMouseScale = 45.0;
const qreal VSettings::wheelMouseScaleMin = 1.0;
const qreal VSettings::wheelMouseScaleMax = 100.0;
const qreal VSettings::defaultScrollingAcceleration = 1.3;
const qreal VSettings::scrollingAccelerationMin = 1.0;
const qreal VSettings::scrollingAccelerationMax = 10.0;
namespace
{
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingConfigurationLabelLanguage,
@ -79,6 +99,19 @@ Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingTiledPDFMargins, (QLatin1String(
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingTiledPDFPaperHeight, (QLatin1String("tiledPDF/paperHeight")))
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingTiledPDFPaperWidth, (QLatin1String("tiledPDF/paperWidth")))
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingTiledPDFOrientation, (QLatin1String("tiledPDF/orientation")))
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingScrollingDuration, (QLatin1String("scrolling/duration")))
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingScrollingUpdateInterval, (QLatin1String("scrolling/updateInterval")))
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingScrollingSensorMouseScale, (QLatin1String("scrolling/sensorMouseScale")))
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingScrollingWheelMouseScale, (QLatin1String("scrolling/wheelMouseScale")))
Q_GLOBAL_STATIC_WITH_ARGS(const QString, settingScrollingAcceleration, (QLatin1String("scrolling/acceleration")))
// Reading settings file is very expensive, cache values to speed up getting a value
int scrollingDurationCached = -1;
int scrollingUpdateIntervalCached = -1;
qreal scrollingSensorMouseScaleCached = -1;
qreal scrollingWheelMouseScaleCached = -1;
qreal scrollingAccelerationCached = -1;
}
//---------------------------------------------------------------------------------------------------------------------
@ -638,3 +671,85 @@ void VSettings::SetTiledPDFOrientation(PageOrientation value)
setValue(*settingTiledPDFOrientation, static_cast<bool> (value));
}
//---------------------------------------------------------------------------------------------------------------------
int VSettings::GetScrollingDuration() const
{
return GetCachedValue(scrollingDurationCached, *settingScrollingDuration, defaultScrollingDuration,
scrollingDurationMin, scrollingDurationMax);
}
//---------------------------------------------------------------------------------------------------------------------
void VSettings::SetScrollingDuration(int duration)
{
scrollingDurationCached = qBound(scrollingDurationMin, duration, scrollingDurationMax);
setValue(*settingScrollingDuration, scrollingDurationCached);
}
//---------------------------------------------------------------------------------------------------------------------
int VSettings::GetScrollingUpdateInterval() const
{
return GetCachedValue(scrollingUpdateIntervalCached, *settingScrollingUpdateInterval,
defaultScrollingUpdateInterval, scrollingUpdateIntervalMin, scrollingUpdateIntervalMax);
}
//---------------------------------------------------------------------------------------------------------------------
void VSettings::SetScrollingUpdateInterval(int updateInterval)
{
scrollingUpdateIntervalCached = qBound(scrollingUpdateIntervalMin, updateInterval, scrollingUpdateIntervalMax);
setValue(*settingScrollingUpdateInterval, scrollingUpdateIntervalCached);
}
//---------------------------------------------------------------------------------------------------------------------
qreal VSettings::GetSensorMouseScale() const
{
return GetCachedValue(scrollingSensorMouseScaleCached, *settingScrollingSensorMouseScale, defaultSensorMouseScale,
sensorMouseScaleMin, sensorMouseScaleMax);
}
//---------------------------------------------------------------------------------------------------------------------
void VSettings::SetSensorMouseScale(qreal scale)
{
scrollingSensorMouseScaleCached = qBound(sensorMouseScaleMin, scale, sensorMouseScaleMax);
setValue(*settingScrollingSensorMouseScale, scrollingSensorMouseScaleCached);
}
//---------------------------------------------------------------------------------------------------------------------
qreal VSettings::GetWheelMouseScale() const
{
return GetCachedValue(scrollingWheelMouseScaleCached, *settingScrollingWheelMouseScale, defaultWheelMouseScale,
wheelMouseScaleMin, wheelMouseScaleMax);
}
//---------------------------------------------------------------------------------------------------------------------
void VSettings::SetWheelMouseScale(qreal scale)
{
scrollingWheelMouseScaleCached = qBound(wheelMouseScaleMin, scale, wheelMouseScaleMax);
setValue(*settingScrollingWheelMouseScale, scrollingWheelMouseScaleCached);
}
//---------------------------------------------------------------------------------------------------------------------
qreal VSettings::GetScrollingAcceleration() const
{
return GetCachedValue(scrollingAccelerationCached, *settingScrollingAcceleration, defaultScrollingAcceleration,
scrollingAccelerationMin, scrollingAccelerationMax);
}
//---------------------------------------------------------------------------------------------------------------------
void VSettings::SetScrollingAcceleration(qreal acceleration)
{
scrollingAccelerationCached = qBound(scrollingAccelerationMin, acceleration, scrollingAccelerationMax);
setValue(*settingScrollingAcceleration, scrollingAccelerationCached);
}
//---------------------------------------------------------------------------------------------------------------------
template<typename T>
T VSettings::GetCachedValue(T &cache, const QString &setting, T defValue, T valueMin, T valueMax) const
{
if (cache < 0)
{
const QVariant val = value(setting, defValue);
cache = val.canConvert<T>() ? qBound(valueMin, val.value<T>(), valueMax) : defValue;
}
return cache;
}

33
src/libs/vmisc/vsettings.h
View File

@ -148,8 +148,41 @@ public:
PageOrientation GetTiledPDFOrientation() const;
void SetTiledPDFOrientation(PageOrientation value);
static const int defaultScrollingDuration;
static const int scrollingDurationMin;
static const int scrollingDurationMax;
int GetScrollingDuration() const;
void SetScrollingDuration(int duration);
static const int defaultScrollingUpdateInterval;
static const int scrollingUpdateIntervalMin;
static const int scrollingUpdateIntervalMax;
int GetScrollingUpdateInterval() const;
void SetScrollingUpdateInterval(int updateInterval);
static const qreal defaultSensorMouseScale;
static const qreal sensorMouseScaleMin;
static const qreal sensorMouseScaleMax;
qreal GetSensorMouseScale() const;
void SetSensorMouseScale(qreal scale);
static const qreal defaultWheelMouseScale;
static const qreal wheelMouseScaleMin;
static const qreal wheelMouseScaleMax;
qreal GetWheelMouseScale() const;
void SetWheelMouseScale(qreal scale);
static const qreal defaultScrollingAcceleration;
static const qreal scrollingAccelerationMin;
static const qreal scrollingAccelerationMax;
qreal GetScrollingAcceleration() const;
void SetScrollingAcceleration(qreal acceleration);
private:
Q_DISABLE_COPY(VSettings)
template <typename T>
T GetCachedValue(T &cache, const QString &setting, T defValue, T valueMin, T valueMax) const;
};
#endif // VSETTINGS_H

60
src/libs/vwidgets/vmaingraphicsview.cpp
View File

@ -63,9 +63,6 @@
#include "../vmisc/vsettings.h"
#include "vabstractmainwindow.h"
const int GraphicsViewZoom::duration = 350;
const int GraphicsViewZoom::updateInterval = 30;
const qreal maxSceneSize = ((20.0 * 1000.0) / 25.4) * PrintDPI; // 20 meters in pixels
namespace
@ -77,15 +74,16 @@ qreal ScrollingSteps(QWheelEvent* wheel_event)
const QPoint numPixels = wheel_event->pixelDelta();
const QPoint numDegrees = wheel_event->angleDelta() / 8;
qreal numSteps = 0;
VSettings *settings = qobject_cast<VSettings *>(qApp->Settings());
if (not numPixels.isNull())
{
const qreal mouseScale = 2.;
const qreal mouseScale = settings->GetSensorMouseScale();
numSteps = (wheel_event->orientation() == Qt::Vertical ? numPixels.y() : numPixels.x()) / mouseScale;
}
else if (not numDegrees.isNull())
{
const qreal mouseScale = 45.;
const qreal mouseScale = settings->GetWheelMouseScale();
numSteps = (wheel_event->orientation() == Qt::Vertical ? numDegrees.y() : numDegrees.x()) / 15. * mouseScale;
}
@ -111,7 +109,7 @@ qreal PrepareScrolling(qreal scheduledScrollings, QWheelEvent *wheel_event)
scheduledScrollings += numSteps;
}
scheduledScrollings *= 1.3;
scheduledScrollings *= qobject_cast<VSettings *>(qApp->Settings())->GetScrollingAcceleration();
return scheduledScrollings;
}
@ -123,24 +121,18 @@ GraphicsViewZoom::GraphicsViewZoom(QGraphicsView* view)
_view(view),
_modifiers(Qt::ControlModifier),
_zoom_factor_base(1.0015),
target_scene_pos(QPointF()),
target_viewport_pos(QPointF()),
verticalScrollAnim(new QTimeLine(duration, this)),
target_scene_pos(),
target_viewport_pos(),
verticalScrollAnim(),
_numScheduledVerticalScrollings(0),
horizontalScrollAnim(new QTimeLine(duration, this)),
horizontalScrollAnim(),
_numScheduledHorizontalScrollings(0)
{
_view->viewport()->installEventFilter(this);
_view->viewport()->grabGesture(Qt::PinchGesture);
_view->setMouseTracking(true);
verticalScrollAnim->setUpdateInterval(updateInterval);
connect(verticalScrollAnim, &QTimeLine::valueChanged, this, &GraphicsViewZoom::VerticalScrollingTime);
connect(verticalScrollAnim, &QTimeLine::finished, this, &GraphicsViewZoom::animFinished);
horizontalScrollAnim->setUpdateInterval(updateInterval);
connect(horizontalScrollAnim, &QTimeLine::valueChanged, this, &GraphicsViewZoom::HorizontalScrollingTime);
connect(horizontalScrollAnim, &QTimeLine::finished, this, &GraphicsViewZoom::animFinished);
InitScrollingAnimation();
}
//---------------------------------------------------------------------------------------------------------------------
@ -186,6 +178,34 @@ void GraphicsViewZoom::set_zoom_factor_base(double value)
_zoom_factor_base = value;
}
//---------------------------------------------------------------------------------------------------------------------
void GraphicsViewZoom::InitScrollingAnimation()
{
VSettings *settings = qobject_cast<VSettings *>(qApp->Settings());
if (not verticalScrollAnim.isNull())
{
delete verticalScrollAnim;
}
verticalScrollAnim = new QTimeLine(settings->GetScrollingDuration(), this);
verticalScrollAnim->setUpdateInterval(settings->GetScrollingUpdateInterval());
connect(verticalScrollAnim, &QTimeLine::valueChanged, this, &GraphicsViewZoom::VerticalScrollingTime);
connect(verticalScrollAnim, &QTimeLine::finished, this, &GraphicsViewZoom::animFinished);
if (not horizontalScrollAnim.isNull())
{
delete horizontalScrollAnim;
}
horizontalScrollAnim = new QTimeLine(settings->GetScrollingDuration(), this);
horizontalScrollAnim->setUpdateInterval(settings->GetScrollingUpdateInterval());
connect(horizontalScrollAnim, &QTimeLine::valueChanged, this, &GraphicsViewZoom::HorizontalScrollingTime);
connect(horizontalScrollAnim, &QTimeLine::finished, this, &GraphicsViewZoom::animFinished);
}
//---------------------------------------------------------------------------------------------------------------------
void GraphicsViewZoom::VerticalScrollingTime(qreal x)
{
@ -490,6 +510,12 @@ void VMainGraphicsView::ZoomFitBest()
emit ScaleChanged(this->transform().m11());
}
//---------------------------------------------------------------------------------------------------------------------
void VMainGraphicsView::ResetScrollingAnimation()
{
zoom->InitScrollingAnimation();
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief mousePressEvent handle mouse press events.

10
src/libs/vwidgets/vmaingraphicsview.h
View File

@ -38,6 +38,7 @@
#include <QString>
#include <Qt>
#include <QtGlobal>
#include <QPointer>
/*!
* This class adds ability to zoom QGraphicsView using mouse wheel. The point under cursor
@ -77,6 +78,7 @@ public:
void gentle_zoom(double factor);
void set_modifiers(Qt::KeyboardModifiers modifiers);
void set_zoom_factor_base(double value);
void InitScrollingAnimation();
signals:
void zoomed();
public slots:
@ -92,16 +94,13 @@ private:
double _zoom_factor_base;
QPointF target_scene_pos;
QPointF target_viewport_pos;
QTimeLine *verticalScrollAnim;
QPointer<QTimeLine> verticalScrollAnim;
/** @brief _numScheduledVerticalScrollings keep number scheduled vertical scrollings. */
qreal _numScheduledVerticalScrollings;
QTimeLine *horizontalScrollAnim;
QPointer<QTimeLine> horizontalScrollAnim;
/** @brief _numScheduledHorizontalScrollings keep number scheduled horizontal scrollings. */
qreal _numScheduledHorizontalScrollings;
static const int duration;
static const int updateInterval;
void FictiveSceneRect(QGraphicsScene *sc, QGraphicsView *view);
void StartVerticalScrollings(QWheelEvent* wheel_event);
@ -154,6 +153,7 @@ public slots:
void ZoomOut();
void ZoomOriginal();
void ZoomFitBest();
void ResetScrollingAnimation();
protected:
virtual void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
virtual void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;