Plasma::Theme

#include <Plasma/Theme>

Inheritance diagram for Plasma::Theme:

[legend]

Public Types
enum	ColorGroup { NormalColorGroup = 0 , ButtonColorGroup = 1 , ViewColorGroup = 2 , ComplementaryColorGroup = 3 , HeaderColorGroup , ToolTipColorGroup }

enum	ColorRole { TextColor = 0 , BackgroundColor = 1 , HighlightColor = 2 , HoverColor = 3 , FocusColor = 4 , LinkColor = 5 , VisitedLinkColor = 6 , HighlightedTextColor = 7 , PositiveTextColor = 8 , NeutralTextColor = 9 , NegativeTextColor = 10 , DisabledTextColor = 11 }

Public Types inherited from QObject
typedef	QObjectList

Properties
QFont	defaultFont

QPalette	palette

QFont	smallestFont

QString	themeName

bool	useGlobalSettings

QString	wallpaperPath

Properties inherited from QObject
	objectName

Signals
void	defaultFontChanged ()

void	smallestFontChanged ()

void	themeChanged ()

Public Member Functions
	Theme (const QString &themeName, QObject *parent=nullptr)

	Theme (QObject *parent=nullptr)

bool	adaptiveTransparencyEnabled () const

qreal	backgroundContrast () const

bool	backgroundContrastEnabled () const

qreal	backgroundIntensity () const

QString	backgroundPath (const QString &image) const

qreal	backgroundSaturation () const

bool	blurBehindEnabled () const

QColor	color (ColorRole role, ColorGroup group=NormalColorGroup) const

KSharedConfigPtr	colorScheme () const

bool	currentThemeHasImage (const QString &name) const

QFont	defaultFont () const

QString	imagePath (const QString &name) const

KPluginMetaData	metadata () const

Q_INVOKABLE QSizeF	mSize (const QFont &font=QGuiApplication::font()) const

QPalette	palette () const

void	setThemeName (const QString &themeName)

void	setUseGlobalSettings (bool useGlobal)

QFont	smallestFont () const

QString	themeName () const

bool	useGlobalSettings () const

QString	wallpaperPath (const QSize &size=QSize()) const

Q_INVOKABLE QString	wallpaperPathForSize (int width=-1, int height=-1) const

Public Member Functions inherited from QObject
	QObject (QObject *parent)

QBindable< QString >	bindableObjectName ()

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 () const const

void	dumpObjectTree () const const

QList< QByteArray >	dynamicPropertyNames () const const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (Qt::FindChildOptions options) const const

bool	inherits (const char *className) const const

void	installEventFilter (QObject *filterObj)

bool	isQuickItemType () const const

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_EMIT Q_EMIT

	Q_ENUM (...)

	Q_ENUM_NS (...)

	Q_ENUMS (...)

	Q_FLAG (...)

	Q_FLAG_NS (...)

	Q_FLAGS (...)

	Q_GADGET Q_GADGET

	Q_GADGET_EXPORT (EXPORT_MACRO)

	Q_INTERFACES (...)

	Q_INVOKABLE Q_INVOKABLE

	Q_MOC_INCLUDE Q_MOC_INCLUDE

	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	qobject_cast (const QObject *object)

T	qobject_cast (QObject *object)

	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setObjectName (QAnyStringView name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	setProperty (const char *name, QVariant &&value)

bool	signalsBlocked () const const

int	startTimer (int interval, Qt::TimerType timerType)

int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)

QThread *	thread () const const

Static Public Member Functions
static KSharedConfigPtr	globalColorScheme ()

static QPalette	globalPalette ()

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 context, Functor functor, 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)

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, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

QString	tr (const char sourceText, const char disambiguation, int n)

Additional Inherited Members
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

Interface to the Plasma theme.

Plasma::Theme provides access to a common and standardized set of graphic elements stored in SVG format. This allows artists to create single packages of SVGs that will affect the look and feel of all workspace components.

Plasma::Svg uses Plasma::Theme internally to locate and load the appropriate SVG data. Alternatively, Plasma::Theme can be used directly to retrieve file system paths to SVGs by name.

Definition at line 39 of file theme.h.

Member Enumeration Documentation

◆ ColorGroup

enum Plasma::Theme::ColorGroup

Definition at line 70 of file theme.h.

◆ ColorRole

enum Plasma::Theme::ColorRole

Enumerator
TextColor	the text color to be used by items resting on the background
BackgroundColor	the default background color
HighlightColor	the text highlight color to be used by items resting on the background
HoverColor	color for hover effect on view
FocusColor	color for focus effect on view
LinkColor	color for clickable links
VisitedLinkColor	color visited clickable links
HighlightedTextColor	color contrasting with HighlightColor, to be used for instance with
PositiveTextColor	color of foreground objects with a "positive message" connotation (usually green)
NeutralTextColor	color of foreground objects with a "neutral message" connotation (usually yellow)
NegativeTextColor	color of foreground objects with a "negative message" connotation (usually red)
DisabledTextColor	color of disabled text Since 5.64

Definition at line 54 of file theme.h.

Property Documentation

◆ defaultFont

QFont Plasma::Theme::defaultFont

read

Definition at line 48 of file theme.h.

◆ palette

QPalette Plasma::Theme::palette

read

Definition at line 51 of file theme.h.

◆ smallestFont

QFont Plasma::Theme::smallestFont

read

Definition at line 49 of file theme.h.

◆ themeName

QString Plasma::Theme::themeName

read

Definition at line 43 of file theme.h.

◆ useGlobalSettings

bool Plasma::Theme::useGlobalSettings

read

Definition at line 44 of file theme.h.

◆ wallpaperPath

QString Plasma::Theme::wallpaperPath

read

Definition at line 45 of file theme.h.

Constructor & Destructor Documentation

◆ Theme() [1/2]

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

explicit

Default constructor.

It will be the global theme configured in plasmarc

Parameters

parent the parent object

Definition at line 34 of file theme.cpp.

◆ Theme() [2/2]

Plasma::Theme::Theme	(	const QString &	themeName,
		QObject *	parent = nullptr )

explicit

Construct a theme.

It will be a custom theme instance of themeName.

Parameters

themeName	the name of the theme to create
parent	the parent object

Since: 4.3

Definition at line 52 of file theme.cpp.

◆ ~Theme()

Plasma::Theme::~Theme ( )

override

Definition at line 75 of file theme.cpp.

Member Function Documentation

◆ adaptiveTransparencyEnabled()

bool Plasma::Theme::adaptiveTransparencyEnabled ( ) const

This method allows Plasma to enable and disable the adaptive transparency option of the panel, which allows user to decide whether the panel should be always transparent, always opaque or only opaque when a window is maximized.

The configuration in the metadata.desktop file of the theme could look like this (for a lighter background):

[AdaptiveTransparency]

enabled=true

Returns: Whether or not to enable the adaptive transparency

Since: 5.20

Definition at line 302 of file theme.cpp.

◆ backgroundContrast()

qreal Plasma::Theme::backgroundContrast ( ) const

This method allows Plasma to set a background contrast effect for a given theme, improving readability.

The value is read from the "contrast" key in the "ContrastEffect" group in the Theme's metadata file.

Returns: The contrast provided to the contrasteffect

Since: 5.0

See also: backgroundContrastEnabled

Definition at line 307 of file theme.cpp.

◆ backgroundContrastEnabled()

bool Plasma::Theme::backgroundContrastEnabled ( ) const

This method allows Plasma to enable and disable the background contrast effect for a given theme, improving readability.

The value is read from the "enabled" key in the "ContrastEffect" group in the Theme's metadata file. The configuration in the metadata.desktop file of the theme could look like this (for a lighter background):

[ContrastEffect]
enabled=true
contrast=0.45
intensity=0.45
saturation=1.7

Returns: Whether or not to enable the contrasteffect

Since: 5.0

Definition at line 297 of file theme.cpp.

◆ backgroundIntensity()

qreal Plasma::Theme::backgroundIntensity ( ) const

This method allows Plasma to set a background contrast effect for a given theme, improving readability.

The value is read from the "intensity" key in the "ContrastEffect" group in the Theme's metadata file.

Returns: The intensity provided to the contrasteffect

Since: 5.0

See also: backgroundContrastEnabled

Definition at line 322 of file theme.cpp.

◆ backgroundPath()

QString Plasma::Theme::backgroundPath ( const QString & image ) const

Definition at line 159 of file theme.cpp.

◆ backgroundSaturation()

qreal Plasma::Theme::backgroundSaturation ( ) const

This method allows Plasma to set a background contrast effect for a given theme, improving readability.

The value is read from the "saturation" key in the "ContrastEffect" group in the Theme's metadata file.

Returns: The saturation provided to the contrasteffect

Since: 5.0

See also: backgroundContrastEnabled

Definition at line 334 of file theme.cpp.

◆ blurBehindEnabled()

bool Plasma::Theme::blurBehindEnabled ( ) const

This method allows Plasma to enable and disable the blurring of what is behind the background for a given theme.

The value is read from the "enabled" key in the "BlurBehindEffect" group in the Theme's metadata file. Default is true.

The configuration in the metadata.desktop file of the theme could look like this:

[BlurBehindEffect]

enabled=false

Returns: Whether or not to enable blurring of what is behind

Since: 5.57

Definition at line 342 of file theme.cpp.

◆ color()

QColor Plasma::Theme::color	(	ColorRole	role,
		ColorGroup	group = NormalColorGroup ) const

Returns the text color to be used by items resting on the background.

Parameters

role	which role (usage pattern) to get the color for
group	which group we want a color of

Definition at line 255 of file theme.cpp.

◆ colorScheme()

KSharedConfigPtr Plasma::Theme::colorScheme ( ) const

Returns the color scheme configurationthat goes along this theme.

This can be used with KStatefulBrush and KColorScheme to determine the proper colours to use along with the visual elements in this theme.

Definition at line 250 of file theme.cpp.

◆ currentThemeHasImage()

bool Plasma::Theme::currentThemeHasImage ( const QString & name ) const

Checks if this theme has an image named in a certain way.

Parameters

name	the name of the file in the theme directory (without the ".svg" part or a leading slash)

Returns: true if the image exists for this theme

Definition at line 236 of file theme.cpp.

◆ defaultFont()

QFont Plasma::Theme::defaultFont ( ) const

Returns: The default application font

Since: 5.0

Definition at line 282 of file theme.cpp.

◆ defaultFontChanged

void Plasma::Theme::defaultFontChanged ( )

signal

Notifier for change of defaultFont property.

◆ globalColorScheme()

KSharedConfigPtr Plasma::Theme::globalColorScheme ( )

static

Definition at line 178 of file theme.cpp.

◆ globalPalette()

QPalette Plasma::Theme::globalPalette ( )

static

Definition at line 169 of file theme.cpp.

◆ imagePath()

QString Plasma::Theme::imagePath ( const QString & name ) const

Retrieve the path for an SVG image in the current theme.

Parameters

name	the name of the file in the theme directory (without the ".svg" part or a leading slash)

Returns: the full path to the requested file for the current theme

Definition at line 123 of file theme.cpp.

◆ metadata()

KPluginMetaData Plasma::Theme::metadata ( ) const

Returns: plugin metadata for this theme, with information such as name, description, author, website etc

Since: 5.95

Definition at line 277 of file theme.cpp.

◆ mSize()

QSizeF Plasma::Theme::mSize ( const QFont & font = QGuiApplication::font() ) const

Returns the size of the letter "M" as rendered on the screen with the given font.

This values gives you a base size that:

scales dependent on the DPI of the screen
Scales with the default font as set by the user You can use it like this in QML Items:
Item {

width: PlasmaCore.Theme.mSize(PlasmaCore.Theme.defaultFont).height

height: width

}

Item

This allows you to dynamically scale elements of your user interface with different font settings and different physical outputs (with different DPI).
Parameters

font The font to use for the metrics.

Returns
The size of the letter "M" as rendered on the screen with the given font.

Since
5.0

Definition at line 292 of file theme.cpp.

◆ palette()

QPalette Plasma::Theme::palette ( ) const

Returns a QPalette with the colors set as defined by the theme.

Since: 5.68

Definition at line 164 of file theme.cpp.

◆ setThemeName()

void Plasma::Theme::setThemeName ( const QString & themeName )

Sets the current theme being used.

Definition at line 91 of file theme.cpp.

◆ setUseGlobalSettings()

void Plasma::Theme::setUseGlobalSettings ( bool useGlobal )

Tells the theme whether to follow the global settings or use application specific settings.

Parameters

useGlobal pass in true to follow the global settings

Definition at line 260 of file theme.cpp.

◆ smallestFont()

QFont Plasma::Theme::smallestFont ( ) const

Returns: The smallest readable font

Since: 5.0

Definition at line 287 of file theme.cpp.

◆ smallestFontChanged

void Plasma::Theme::smallestFontChanged ( )

signal

Notifier for change of smallestFont property.

◆ themeChanged

void Plasma::Theme::themeChanged ( )

signal

Emitted when the user changes the theme.

Stylesheet usage, colors, etc. should be updated at this point. However, SVGs should not be repainted in response to this signal; connect to Svg::repaintNeeded() instead for that, as Svg objects need repainting not only when themeChanged() is emitted; moreover Svg objects connect to and respond appropriately to themeChanged() internally, emitting Svg::repaintNeeded() at an appropriate time.

◆ themeName()

QString Plasma::Theme::themeName ( ) const

Returns: the name of the theme.

Definition at line 118 of file theme.cpp.

◆ useGlobalSettings()

bool Plasma::Theme::useGlobalSettings ( ) const

Returns: true if the global settings are followed, false if application specific settings are used.

Definition at line 272 of file theme.cpp.

◆ wallpaperPath()

QString Plasma::Theme::wallpaperPath ( const QSize & size = QSize() ) const

Retrieves the default wallpaper associated with this theme.

Parameters

size	the target height and width of the wallpaper; if an invalid size is passed in, then a default size will be provided instead.

Returns: the full path to the wallpaper image

Definition at line 187 of file theme.cpp.

◆ wallpaperPathForSize()

QString Plasma::Theme::wallpaperPathForSize	(	int	width = -1,
		int	height = -1 ) const

Definition at line 231 of file theme.cpp.

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

KDE's Doxygen guidelines are available online.

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About Libplasma

Plasma::Theme

Public Types

Properties

Signals

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ ColorGroup

◆ ColorRole

Property Documentation

◆ defaultFont

◆ palette

◆ smallestFont

◆ themeName

◆ useGlobalSettings

◆ wallpaperPath

Constructor & Destructor Documentation

◆ Theme() [1/2]

◆ Theme() [2/2]

◆ ~Theme()

Member Function Documentation

◆ adaptiveTransparencyEnabled()

◆ backgroundContrast()

◆ backgroundContrastEnabled()

◆ backgroundIntensity()

◆ backgroundPath()

◆ backgroundSaturation()

◆ blurBehindEnabled()

◆ color()

◆ colorScheme()

◆ currentThemeHasImage()

◆ defaultFont()

◆ defaultFontChanged

◆ globalColorScheme()

◆ globalPalette()

◆ imagePath()

◆ metadata()

◆ mSize()

◆ palette()

◆ setThemeName()

◆ setUseGlobalSettings()

◆ smallestFont()

◆ smallestFontChanged

◆ themeChanged

◆ themeName()

◆ useGlobalSettings()

◆ wallpaperPath()

◆ wallpaperPathForSize()