Scroll bar widget. More...

#include <libmythui/mythuiscrollbar.h>

Inheritance diagram for MythUIScrollBar:

Collaboration diagram for MythUIScrollBar:

Public Types
enum	LayoutType : std::uint8_t { LayoutVertical , LayoutHorizontal }

Public Member Functions
	MythUIScrollBar (MythUIType *parent, const QString &name)

	~MythUIScrollBar () override=default

void	Reset (void) override
	Reset the widget to it's original state, should not reset changes made by the theme. More...

void	SetPageStep (int value)

void	SetSliderPosition (int value)

void	SetMaximum (int value)

Public Member Functions inherited from MythUIType
	MythUIType (QObject *parent, const QString &name)

virtual void	Reset (void)
	Reset the widget to it's original state, should not reset changes made by the theme. More...

void	AddChild (MythUIType *child)
	Add a child UIType. More...

MythUIType *	GetChild (const QString &name) const
	Get a named child of this UIType. More...

MythUIType *	GetChildAt (QPoint p, bool recursive=true, bool focusable=true) const
	Return the first MythUIType at the given coordinates. More...

QList< MythUIType * > *	GetAllChildren (void)
	Return a list of all child widgets. More...

QList< MythUIType * >	GetAllDescendants (void)

void	DeleteChild (const QString &name)
	Delete a named child of this UIType. More...

void	DeleteChild (MythUIType *child)
	Delete the given UIType if it is a child of this UIType. More...

void	DeleteAllChildren (void)
	Delete all child widgets. More...

bool	NeedsRedraw (void) const

void	ResetNeedsRedraw (void)

void	SetRedraw (void)

void	SetChildNeedsRedraw (MythUIType *child)

bool	CanTakeFocus (void) const
	Return if this widget can accept input focus. More...

void	SetCanTakeFocus (bool set=true)
	Set whether this widget can take focus. More...

void	SetFocusOrder (int order)

void	SetFocusedName (const QString &widgetname)

QString	GetFocusedName (void) const

bool	IsEnabled (void) const

void	SetEnabled (bool enable)

bool	MoveToTop (void)

bool	MoveChildToTop (MythUIType *child)

void	ActivateAnimations (MythUIAnimation::Trigger trigger)

QList< MythUIAnimation * > *	GetAnimations (void)

virtual void	Pulse (void)
	Pulse is called 70 times a second to trigger a single frame of an animation. More...

void	Draw (MythPainter *p, int xoffset, int yoffset, int alphaMod=255, QRect clipRect=QRect())

void	SetPosition (int x, int y)
	Convenience method, calls SetPosition(const MythPoint&) Override that instead to change functionality. More...

void	SetPosition (QPoint point)

virtual void	SetPosition (const MythPoint &point)

virtual MythPoint	GetPosition (void) const

virtual void	SetSize (QSize size)

virtual void	SetMinSize (const MythPoint &size)
	Set the minimum size of this widget, for widgets which can be rescaled. More...

virtual QSize	GetMinSize (void) const

virtual void	SetArea (const MythRect &rect)

virtual void	AdjustMinArea (int delta_x, int delta_y, int delta_w, int delta_h)
	Adjust the size of a sibling. More...

virtual void	VanishSibling (void)

virtual void	SetMinAreaParent (MythRect actual_area, MythRect allowed_area, MythUIType *child)
	Adjust the size of sibling objects within the button. More...

virtual void	SetMinArea (const MythRect &rect)
	Set the minimum area based on the given size. More...

virtual MythRect	GetArea (void) const
	If the object has a minimum area defined, return it, other wise return the default area. More...

virtual MythRect	GetFullArea (void) const

virtual void	RecalculateArea (bool recurse=true)

void	ExpandArea (QRect rect)

virtual QRegion	GetDirtyArea (void) const

bool	IsVisible (bool recurse=false) const

virtual void	SetVisible (bool visible)

void	MoveTo (QPoint destXY, QPoint speedXY)

void	AdjustAlpha (int mode, int alphachange, int minalpha=0, int maxalpha=255)

void	SetAlpha (int newalpha)

int	GetAlpha (void) const

virtual bool	keyPressEvent (QKeyEvent *event)
	Key event handler. More...

virtual bool	inputMethodEvent (QInputMethodEvent *event)
	Input Method event handler. More...

virtual bool	gestureEvent (MythGestureEvent *event)
	Mouse click/movement handler, receives mouse gesture events from the QCoreApplication event loop. More...

virtual void	mediaEvent (MythMediaEvent *event)
	Media/Device status event handler, received from MythMediaMonitor. More...

MythFontProperties *	GetFont (const QString &text) const

bool	AddFont (const QString &text, MythFontProperties *fontProp)

void	SetHelpText (const QString &text)

QString	GetHelpText (void) const

void	SetXMLLocation (const QString &filename, int where)

QString	GetXMLLocation (void) const

void	SetXMLName (const QString &name)

QString	GetXMLName (void) const

bool	IsDeferredLoading (bool recurse=false) const

void	SetDeferLoad (bool defer)

virtual void	LoadNow (void)
	Cause images in this and child widgets to be loaded. More...

bool	ContainsPoint (QPoint point) const
	Check if the given point falls within this widgets area. More...

virtual MythPainter *	GetPainter (void)

void	SetPainter (MythPainter *painter)

void	SetCentre (UIEffects::Centre centre)

void	SetZoom (float zoom)

void	SetHorizontalZoom (float zoom)

void	SetVerticalZoom (float zoom)

void	SetAngle (float angle)

void	SetDependIsDefault (bool isDefault)

void	SetReverseDependence (MythUIType *dependee, bool reverse)

void	SetDependsMap (QMap< QString, QString > dependsMap)

QMap< QString, QString >	GetDependsMap () const

Protected Slots
void	DoneFading (void)

Protected Member Functions
bool	ParseElement (const QString &filename, QDomElement &element, bool showWarnings) override
	Parse the xml definition of this widget setting the state of the object accordingly. More...

void	CopyFrom (MythUIType *base) override
	Copy this widgets state from another. More...

void	CreateCopy (MythUIType *parent) override
	Copy the state of this widget to the one given, it must be of the same type. More...

void	Finalize (void) override
	Perform any post-xml parsing initialisation tasks. More...

void	CalculatePosition (void)

void	timerEvent (QTimerEvent *event) override

Protected Member Functions inherited from MythUIType
	~MythUIType () override

void	customEvent (QEvent *event) override

virtual void	DrawSelf (MythPainter *p, int xoffset, int yoffset, int alphaMod, QRect clipRect)

void	AddFocusableChildrenToList (FocusInfoType &focusList)

void	HandleAlphaPulse ()
	Handle one frame of an alpha (transparency) change animation. More...

void	HandleMovementPulse ()
	Handle one frame of a movement animation. More...

int	CalcAlpha (int alphamod) const

void	ConnectDependants (bool recurse=false)

virtual bool	ParseElement (const QString &filename, QDomElement &element, bool showWarnings)
	Parse the xml definition of this widget setting the state of the object accordingly. More...

virtual void	CopyFrom (MythUIType *base)
	Copy this widgets state from another. More...

virtual void	CreateCopy (MythUIType *parent)
	Copy the state of this widget to the one given, it must be of the same type. More...

virtual void	Finalize (void)
	Perform any post-xml parsing initialisation tasks. More...

Protected Attributes
LayoutType	m_layout {LayoutVertical}

MythRect	m_sliderArea

int	m_pageStep {kDefaultPageStep}

int	m_sliderPosition {0}

int	m_maximum {0}

std::chrono::milliseconds	m_hideDelay {0ms}

int	m_timerId {0}

Protected Attributes inherited from MythUIType
QList< MythUIType * >	m_childrenList

QMap< QString, QString >	m_dependsMap

QList< QPair< MythUIType *, bool > >	m_dependsValue

QList< int >	m_dependOperator

bool	m_visible {true}

bool	m_hasFocus {false}

bool	m_canHaveFocus {false}

bool	m_enabled {true}

bool	m_enableInitiator {false}

bool	m_initiator {false}

bool	m_vanish {false}

bool	m_vanished {false}

bool	m_isDependDefault {false}

QMap< MythUIType *, bool >	m_reverseDepend

QString	m_focusedName

int	m_focusOrder {0}

MythRect	m_area {0,0,0,0}

MythRect	m_minArea {0,0,0,0}

MythPoint	m_minSize

QRegion	m_dirtyRegion {0,0,0,0}

bool	m_needsRedraw {false}

UIEffects	m_effects

int	m_alphaChangeMode {0}

int	m_alphaChange {0}

int	m_alphaMin {0}

int	m_alphaMax {255}

bool	m_moving {false}

QPoint	m_xyDestination {0,0}

QPoint	m_xySpeed {0,0}

FontMap *	m_fonts {nullptr}

MythUIType *	m_parent {nullptr}

MythPainter *	m_painter {nullptr}

QList< MythUIAnimation * >	m_animations

QString	m_helptext

QString	m_xmlName

QString	m_xmlLocation

bool	m_deferload {false}

QColor	m_borderColor {Qt::black}

Additional Inherited Members
Public Slots inherited from MythUIType
void	LoseFocus (void)

bool	TakeFocus (void)

void	Activate (void)

void	Hide (void)

void	Show (void)

void	Refresh (void)

void	UpdateDependState (bool isDefault)

void	UpdateDependState (MythUIType *dependee, bool isDefault)

Signals inherited from MythUIType
void	RequestUpdate (void)

void	RequestRegionUpdate (const QRect &)

void	TakingFocus (void)

void	LosingFocus (void)

void	VisibilityChanged (bool Visible)

void	Showing (void)

void	Hiding (void)

void	Enabling (void)

void	Disabling (void)

void	FinishedMoving (void)

void	FinishedFading (void)

void	DependChanged (bool isDefault)

Static Public Member Functions inherited from XMLParseBase
static QString	getFirstText (QDomElement &element)

static bool	parseBool (const QString &text)

static bool	parseBool (QDomElement &element)

static MythPoint	parsePoint (const QString &text, bool normalize=true)

static MythPoint	parsePoint (QDomElement &element, bool normalize=true)

static QSize	parseSize (const QString &text, bool normalize=true)

static QSize	parseSize (QDomElement &element, bool normalize=true)

static MythRect	parseRect (const QString &text, bool normalize=true)

static MythRect	parseRect (QDomElement &element, bool normalize=true)

static int	parseAlignment (const QString &text)

static int	parseAlignment (QDomElement &element)

static QBrush	parseGradient (const QDomElement &element)

static QString	parseText (QDomElement &element)

static MythUIType *	GetGlobalObjectStore (void)

static void	ClearGlobalObjectStore (void)

static void	ParseChildren (const QString &filename, QDomElement &element, MythUIType *parent, bool showWarnings)

static MythUIType *	ParseUIType (const QString &filename, QDomElement &element, const QString &type, MythUIType parent, MythScreenType screen, bool showWarnings, QMap< QString, QString > &parentDependsMap)

static bool	WindowExists (const QString &xmlfile, const QString &windowname)

static bool	LoadWindowFromXML (const QString &xmlfile, const QString &windowname, MythUIType *parent)

static bool	LoadBaseTheme (void)

static bool	LoadBaseTheme (const QString &baseTheme)

static bool	CopyWindowFromBase (const QString &windowname, MythScreenType *win)

Static Protected Member Functions inherited from MythUIType
static int	NormX (int width)

static int	NormY (int height)

Detailed Description

Scroll bar widget.

Definition at line 15 of file mythuiscrollbar.h.

Member Enumeration Documentation

◆ LayoutType

enum MythUIScrollBar::LayoutType : std::uint8_t

Enumerator
LayoutVertical
LayoutHorizontal

Definition at line 26 of file mythuiscrollbar.h.

Constructor & Destructor Documentation

◆ MythUIScrollBar()

MythUIScrollBar::MythUIScrollBar	(	MythUIType *	parent,
		const QString &	name
	)

inline

Definition at line 20 of file mythuiscrollbar.h.

Referenced by CreateCopy().

◆ ~MythUIScrollBar()

MythUIScrollBar::~MythUIScrollBar ( )

overridedefault

Member Function Documentation

◆ CalculatePosition()

void MythUIScrollBar::CalculatePosition ( void )

protected

Definition at line 84 of file mythuiscrollbar.cpp.

Referenced by Finalize(), Reset(), SetMaximum(), SetPageStep(), and SetSliderPosition().

◆ CopyFrom()

void MythUIScrollBar::CopyFrom ( MythUIType * base )

overrideprotectedvirtual

Copy this widgets state from another.

Reimplemented from MythUIType.

Definition at line 146 of file mythuiscrollbar.cpp.

◆ CreateCopy()

void MythUIScrollBar::CreateCopy ( MythUIType * parent )

overrideprotectedvirtual

Copy the state of this widget to the one given, it must be of the same type.

Reimplemented from MythUIType.

Definition at line 159 of file mythuiscrollbar.cpp.

◆ DoneFading

void MythUIScrollBar::DoneFading ( void )

protectedslot

Definition at line 174 of file mythuiscrollbar.cpp.

Referenced by timerEvent().

◆ Finalize()

void MythUIScrollBar::Finalize ( void )

overrideprotectedvirtual

Perform any post-xml parsing initialisation tasks.

This is called after the widget has been created and it's state established by ParseElement() or CopyFrom(). A derived class should use this to perform any initialisation tasks which should occur after this point.

Reimplemented from MythUIType.

Definition at line 137 of file mythuiscrollbar.cpp.

◆ ParseElement()

bool MythUIScrollBar::ParseElement	(	const QString &	filename,
		QDomElement &	element,
		bool	showWarnings
	)

overrideprotectedvirtual

Parse the xml definition of this widget setting the state of the object accordingly.

Reimplemented from MythUIType.

Definition at line 26 of file mythuiscrollbar.cpp.

◆ Reset()

void MythUIScrollBar::Reset ( void )

overridevirtual

Reset the widget to it's original state, should not reset changes made by the theme.

Reimplemented from MythUIType.

Definition at line 15 of file mythuiscrollbar.cpp.

Referenced by MythUIWebBrowser::ResetScrollBars().

◆ SetMaximum()

void MythUIScrollBar::SetMaximum ( int value )

Definition at line 62 of file mythuiscrollbar.cpp.

Referenced by MythUIButtonList::SetScrollBarPosition(), and MythUIWebBrowser::UpdateScrollBars().

◆ SetPageStep()

void MythUIScrollBar::SetPageStep ( int value )

Definition at line 50 of file mythuiscrollbar.cpp.

Referenced by MythUIButtonList::SetScrollBarPosition(), and MythUIWebBrowser::UpdateScrollBars().

◆ SetSliderPosition()

void MythUIScrollBar::SetSliderPosition ( int value )

Definition at line 73 of file mythuiscrollbar.cpp.

Referenced by MythUIButtonList::SetScrollBarPosition(), and MythUIWebBrowser::UpdateScrollBars().

◆ timerEvent()

void MythUIScrollBar::timerEvent ( QTimerEvent * event )

overrideprotected

Definition at line 165 of file mythuiscrollbar.cpp.

Member Data Documentation

◆ m_hideDelay

std::chrono::milliseconds MythUIScrollBar::m_hideDelay {0ms}

protected

Definition at line 52 of file mythuiscrollbar.h.

Referenced by CalculatePosition(), CopyFrom(), and ParseElement().

◆ m_layout

LayoutType MythUIScrollBar::m_layout {LayoutVertical}

protected

Definition at line 45 of file mythuiscrollbar.h.

Referenced by CalculatePosition(), CopyFrom(), and ParseElement().

◆ m_maximum

int MythUIScrollBar::m_maximum {0}

protected

Definition at line 50 of file mythuiscrollbar.h.

Referenced by CalculatePosition(), Reset(), SetMaximum(), and SetSliderPosition().

◆ m_pageStep

int MythUIScrollBar::m_pageStep {kDefaultPageStep}

protected

Definition at line 48 of file mythuiscrollbar.h.

Referenced by CalculatePosition(), Reset(), and SetPageStep().

◆ m_sliderArea

MythRect MythUIScrollBar::m_sliderArea

protected

Definition at line 47 of file mythuiscrollbar.h.

Referenced by CalculatePosition(), CopyFrom(), and Finalize().

◆ m_sliderPosition

int MythUIScrollBar::m_sliderPosition {0}

protected

Definition at line 49 of file mythuiscrollbar.h.

Referenced by CalculatePosition(), Reset(), and SetSliderPosition().

◆ m_timerId

int MythUIScrollBar::m_timerId {0}

protected

Definition at line 53 of file mythuiscrollbar.h.

Referenced by CalculatePosition(), and timerEvent().

The documentation for this class was generated from the following files:

mythtv/libs/libmythui/mythuiscrollbar.h
mythtv/libs/libmythui/mythuiscrollbar.cpp

Public Types

Public Member Functions

Protected Slots

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ LayoutType

Constructor & Destructor Documentation

◆ MythUIScrollBar()

◆ ~MythUIScrollBar()

Member Function Documentation

◆ CalculatePosition()

◆ CopyFrom()

◆ CreateCopy()

◆ DoneFading

◆ Finalize()

◆ ParseElement()

◆ Reset()

◆ SetMaximum()

◆ SetPageStep()

◆ SetSliderPosition()

◆ timerEvent()

Member Data Documentation

◆ m_hideDelay

◆ m_layout

◆ m_maximum

◆ m_pageStep

◆ m_sliderArea

◆ m_sliderPosition

◆ m_timerId