Plasma::FrameSvg Class Reference

#include <Plasma/FrameSvg>

Inheritance diagram for Plasma::FrameSvg:

Public Types
enum	EnabledBorder {   NoBorder = 0, TopBorder = 1, BottomBorder = 2, LeftBorder = 4,   RightBorder = 8, AllBorders = TopBorder | BottomBorder | LeftBorder | RightBorder }
typedef QFlags< EnabledBorder >	EnabledBorders
Public Types inherited from Plasma::Svg
enum	Status { Normal = 0, Selected }

Properties
EnabledBorders	enabledBorders
Properties inherited from Plasma::Svg
Plasma::Theme::ColorGroup	colorGroup
bool	fromCurrentTheme
QString	imagePath
bool	multipleImages
QSize	size
Plasma::Svg::Status	status
bool	usingRenderingCache
Properties inherited from QObject
	objectName

Public Member Functions
QString	actualPrefix () const
QPixmap	alphaMask () const
Q_INVOKABLE bool	cacheAllRenderedFrames () const
Q_INVOKABLE void	clearCache ()
Q_INVOKABLE QRectF	contentsRect () const
EnabledBorders	enabledBorders () const
Q_INVOKABLE qreal	fixedMarginSize (const Plasma::Types::MarginEdge edge) const
Q_INVOKABLE QPixmap	framePixmap ()
Q_INVOKABLE QSizeF	frameSize () const
Q_INVOKABLE void	getFixedMargins (qreal &left, qreal &top, qreal &right, qreal &bottom) const
Q_INVOKABLE void	getMargins (qreal &left, qreal &top, qreal &right, qreal &bottom) const
Q_INVOKABLE bool	hasElementPrefix (const QString &prefix) const
Q_INVOKABLE bool	hasElementPrefix (Plasma::Types::Location location) const
bool	isRepaintBlocked () const
Q_INVOKABLE qreal	marginSize (const Plasma::Types::MarginEdge edge) const
Q_INVOKABLE QRegion	mask () const
Q_INVOKABLE void	paintFrame (QPainter *painter, const QRectF &target, const QRectF &source=QRectF())
Q_INVOKABLE void	paintFrame (QPainter *painter, const QPointF &pos=QPointF(0, 0))
Q_INVOKABLE QString	prefix ()
Q_INVOKABLE void	resizeFrame (const QSizeF &size)
Q_INVOKABLE void	setCacheAllRenderedFrames (bool cache)
Q_INVOKABLE void	setElementPrefix (Plasma::Types::Location location)
Q_INVOKABLE void	setElementPrefix (const QString &prefix)
void	setEnabledBorders (const EnabledBorders borders)
Q_INVOKABLE void	setImagePath (const QString &path) override
void	setRepaintBlocked (bool blocked)
Public Member Functions inherited from Plasma::Svg
Plasma::Theme::ColorGroup	colorGroup () const
bool	containsMultipleImages () const
qreal	devicePixelRatio ()
Q_INVOKABLE QRectF	elementRect (const QString &elementId) const
Q_INVOKABLE QSize	elementSize (const QString &elementId) const
bool	fromCurrentTheme () const
Q_INVOKABLE bool	hasElement (const QString &elementId) const
Q_INVOKABLE QImage	image (const QSize &size, const QString &elementID=QString())
QString	imagePath () const
bool	isUsingRenderingCache () const
Q_INVOKABLE bool	isValid () const
Q_INVOKABLE void	paint (QPainter *painter, const QPointF &point, const QString &elementID=QString())
Q_INVOKABLE void	paint (QPainter *painter, int x, int y, const QString &elementID=QString())
Q_INVOKABLE void	paint (QPainter *painter, const QRectF &rect, const QString &elementID=QString())
Q_INVOKABLE void	paint (QPainter *painter, int x, int y, int width, int height, const QString &elementID=QString())
Q_INVOKABLE QPixmap	pixmap (const QString &elementID=QString())
Q_INVOKABLE void	resize (qreal width, qreal height)
Q_INVOKABLE void	resize (const QSizeF &size)
Q_INVOKABLE void	resize ()
qreal	scaleFactor () const
void	setColorGroup (Plasma::Theme::ColorGroup group)
void	setContainsMultipleImages (bool multiple)
void	setDevicePixelRatio (qreal ratio)
void	setScaleFactor (qreal factor)
void	setStatus (Svg::Status status)
void	setTheme (Plasma::Theme *theme)
void	setUseSystemColors (bool system)
void	setUsingRenderingCache (bool useCache)
QSize	size () const
Svg::Status	status () const
Theme *	theme () const
bool	useSystemColors () const
Public Member Functions inherited from QObject
	QObject (QObject *parent)
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo ()
void	dumpObjectInfo () const const
void	dumpObjectTree ()
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_DISABLE_COPY (Class)
	Q_DISABLE_COPY_MOVE (Class)
	Q_DISABLE_MOVE (Class)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qFindChild (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T >	qFindChildren (const QObject *obj, const QString &name)
T	qobject_cast (QObject *object)
T	qobject_cast (const QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
QThread *	thread () const const

Related Functions
(Note that these are not member functions.)
	FrameSvg (QObject *parent=nullptr)
Related Functions inherited from Plasma::Svg
	Svg (QObject *parent=nullptr)

Additional Inherited Members
Signals inherited from Plasma::Svg
void	colorGroupChanged ()
void	colorHintChanged ()
void	fromCurrentThemeChanged (bool fromCurrentTheme)
void	imagePathChanged ()
void	repaintNeeded ()
void	sizeChanged ()
void	statusChanged (Plasma::Svg::Status status)
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
QString	trUtf8 (const char *sourceText, const char *disambiguation, int n)
Public Attributes inherited from QObject
typedef	QObjectList
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)

Detailed Description

Provides an SVG with borders.

When using SVG images for a background of an object that may change its aspect ratio, such as a dialog, simply scaling a single image may not be enough.

FrameSvg allows SVGs to provide several elements for borders as well as a central element, each of which are scaled individually. These elements should be named

• center - the central element, which will be scaled in both directions
• top - the top border; the height is fixed, but it will be scaled horizontally to the same width as center
• bottom - the bottom border; scaled in the same way as top
• left - the left border; the width is fixed, but it will be scaled vertically to the same height as center
• right - the right border; scaled in the same way as left
• topleft - fixed size; must be the same height as top and the same width as left
• bottomleft, topright, bottomright - similar to topleft

center must exist, but all the others are optional. topleft and topright will be ignored if top does not exist, and similarly for bottomleft and bottomright.

See also

Plasma::Svg

Definition at line 76 of file framesvg.h.

Member Enumeration Documentation

enum Plasma::FrameSvg::EnabledBorder

These flags represents what borders should be drawn.

Definition at line 86 of file framesvg.h.

Member Function Documentation

QString Plasma::FrameSvg::actualPrefix

(

)

const

Returns

the prefix that is actually used (including a '-' at the end if not empty)

See also

prefix()

Definition at line 876 of file framesvg.cpp.

QPixmap Plasma::FrameSvg::alphaMask

(

)

const

Returns

a pixmap whose alpha channel is the opacity of the frame. It may be the frame itself or a special frame with the mask- prefix

Definition at line 296 of file framesvg.cpp.

bool Plasma::FrameSvg::cacheAllRenderedFrames

(

)

const

Returns

if all the different prefixes should be kept in a cache when rendered

Definition at line 333 of file framesvg.cpp.

void Plasma::FrameSvg::clearCache

(

)

Deletes the internal cache freeing memory: use this if you want to switch the rendered element and you don't plan to switch back to the previous one for a long time and you used setUsingRenderingCache(true)

Definition at line 338 of file framesvg.cpp.

QRectF Plasma::FrameSvg::contentsRect

(

)

const

Returns

the rectangle of the center element, taking the margins into account.

Definition at line 286 of file framesvg.cpp.

EnabledBorders Plasma::FrameSvg::enabledBorders

(

)

const

Convenience method to get the enabled borders.

Returns

what borders are painted

qreal Plasma::FrameSvg::fixedMarginSize

(

const Plasma::Types::MarginEdge

edge

)

const

Returns the margin size given the margin edge we want.

Compared to marginSize(), this doesn't depend whether the margin is enabled or not

Parameters

edge	the margin edge we want, top, bottom, left or right

Returns

the margin size

Definition at line 234 of file framesvg.cpp.

QPixmap Plasma::FrameSvg::framePixmap

(

)

Returns a pixmap of the SVG represented by this object.

Parameters

elelementId

the ID string of the element to render, or an empty string for the whole SVG (the default)

Returns

a QPixmap of the rendered SVG

Definition at line 350 of file framesvg.cpp.

QSizeF Plasma::FrameSvg::frameSize

(

)

const

Returns

the size of the frame

Definition at line 199 of file framesvg.cpp.

void Plasma::FrameSvg::getFixedMargins	(	qreal &	left,
		qreal &	top,
		qreal &	right,
		qreal &	bottom
	)		const

Convenience method that extracts the size of the four margins in the four output parameters Compared to getMargins(), this doesn't depend whether the margins are enabled or not.

Parameters

left	left margin size
top	top margin size
right	right margin size
bottom	bottom margin size

Definition at line 273 of file framesvg.cpp.

void Plasma::FrameSvg::getMargins	(	qreal &	left,
		qreal &	top,
		qreal &	right,
		qreal &	bottom
	)		const

Convenience method that extracts the size of the four margins in the four output parameters The disabled margins will be 0.

If you don't care about the margins being on or off, use getFixedMargins()

Parameters

left	left margin size
top	top margin size
right	right margin size
bottom	bottom margin size

Definition at line 260 of file framesvg.cpp.

bool Plasma::FrameSvg::hasElementPrefix

(

const QString &

prefix

)

const

Returns

true if the svg has the necessary elements with the given prefix to draw a frame

Parameters

prefix

the given prefix we want to check if drawable (can have trailing '-' since 5.59)

Definition at line 141 of file framesvg.cpp.

bool Plasma::FrameSvg::hasElementPrefix

(

Plasma::Types::Location

location

)

const

This is an overloaded method provided for convenience equivalent to hasElementPrefix("north"), hasElementPrefix("south") hasElementPrefix("west") and hasElementPrefix("east")

Returns

true if the svg has the necessary elements with the given prefix to draw a frame.

Parameters

location

the given prefix we want to check if drawable

Definition at line 155 of file framesvg.cpp.

bool Plasma::FrameSvg::isRepaintBlocked

(

)

const

Returns

true if we are in a transaction of many changes at once and we don't want to rebuild the generated graphics for each change yet

Since

5.31

Definition at line 881 of file framesvg.cpp.

qreal Plasma::FrameSvg::marginSize

(

const Plasma::Types::MarginEdge

edge

)

const

Returns the margin size given the margin edge we want If the given margin is disabled, it will return 0.

If you don't care about the margin being on or off, use fixedMarginSize()

Parameters

edge	the margin edge we want, top, bottom, left or right

Returns

the margin size

Definition at line 208 of file framesvg.cpp.

QRegion Plasma::FrameSvg::mask

(

)

const

Returns a mask that tightly contains the fully opaque areas of the svg.

Returns

a region of opaque areas

Definition at line 302 of file framesvg.cpp.

void Plasma::FrameSvg::paintFrame	(	QPainter *	painter,
		const QRectF &	target,
		const QRectF &	source = QRectF()
	)

Paints the loaded SVG with the elements that represents the border.

Parameters

painter	the QPainter to use
target	the target rectangle on the paint device
source	the portion rectangle of the source image

Definition at line 359 of file framesvg.cpp.

void Plasma::FrameSvg::paintFrame	(	QPainter *	painter,
		const QPointF &	pos = QPointF(0, 0)
	)

Paints the loaded SVG with the elements that represents the border This is an overloaded member provided for convenience.

Parameters

painter	the QPainter to use
pos	where to paint the svg

Definition at line 371 of file framesvg.cpp.

QString Plasma::FrameSvg::prefix

(

)

Returns the prefix for SVG elements of the FrameSvg (including a '-' at the end if not empty)

Returns

the prefix

See also

actualPrefix()

Definition at line 171 of file framesvg.cpp.

void Plasma::FrameSvg::resizeFrame

(

const QSizeF &

size

)

Resize the frame maintaining the same border size.

Parameters

size	the new size of the frame

Definition at line 176 of file framesvg.cpp.

void Plasma::FrameSvg::setCacheAllRenderedFrames

(

bool

cache

)

Sets whether saving all the rendered prefixes in a cache or not.

Parameters

cache

if use the cache or not

Definition at line 324 of file framesvg.cpp.

void Plasma::FrameSvg::setElementPrefix

(

Plasma::Types::Location

location

)

Sets the prefix (.

See also

setElementPrefix) to 'north', 'south', 'west' and 'east' when the location is TopEdge, BottomEdge, LeftEdge and RightEdge, respectively. Clears the prefix in other cases.

The prefix must exist in the SVG document, which means that this can only be called successfully after setImagePath is called.

Parameters

location

location in the UI this frame will be drawn

Definition at line 99 of file framesvg.cpp.

void Plasma::FrameSvg::setElementPrefix

(

const QString &

prefix

)

Sets the prefix for the SVG elements to be used for painting.

For example, if prefix is 'active', then instead of using the 'top' element of the SVG file to paint the top border, 'active-top' element will be used. The same goes for other SVG elements.

If the elements with prefixes are not present, the default ones are used. (for the sake of speed, the test is present only for the 'center' element)

Setting the prefix manually resets the location to Floating.

The prefix must exist in the SVG document, which means that this can only be called successfully after setImagePath is called.

Parameters

prefix

prefix for the SVG elements that make up the frame

Definition at line 122 of file framesvg.cpp.

void Plasma::FrameSvg::setEnabledBorders

(

const EnabledBorders

borders

)

Sets what borders should be painted.

Parameters

flags

borders we want to paint

Definition at line 81 of file framesvg.cpp.

void Plasma::FrameSvg::setImagePath ( const QString &  path )

overridevirtual

Loads a new Svg.

Parameters

imagePath

the new file

Reimplemented from Plasma::Svg.

Definition at line 66 of file framesvg.cpp.

void Plasma::FrameSvg::setRepaintBlocked

(

bool

blocked

)

If we will do several changes at once in the frame properties, such as prefix, enabled borders and size, in order to not regenerate the graphics for each change, set this property to true, and set it to false again after applying all the changes needed.

Note that any change will not be visible in the painted frame while this property is set to true.

Since

5.31

Definition at line 886 of file framesvg.cpp.

Friends And Related Function Documentation

Plasma::FrameSvg::FrameSvg ( QObject *  parent = nullptr )

related

Constructs a new FrameSvg that paints the proper named subelements as borders.

It may also be used as a regular Plasma::Svg object for direct access to elements in the Svg.

Parameters

parent

options QObject to parent this to

Definition at line 54 of file framesvg.cpp.

---

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

• framesvg.h
• framesvg.cpp