GI.Gtk.Objects.ThemingEngine

ThemingEngine was the object used for rendering themed content in GTK+ widgets. It used to allow overriding GTK+'s default implementation of rendering functions by allowing engines to be loaded as modules.

ThemingEngine has been deprecated in GTK+ 3.14 and will be ignored for rendering. The advancements in CSS theming are good enough to allow themers to achieve their goals without the need to modify source code.

Exported types

newtype ThemingEngine

Constructors

ThemingEngine (ManagedPtr ThemingEngine)

Instances

GObject ThemingEngine

Methods

gobjectType :: ThemingEngine -> IO GType

IsObject ThemingEngine

IsThemingEngine ThemingEngine

class GObject o => IsThemingEngine o

Instances

(GObject a, UnknownAncestorError Constraint ThemingEngine a) => IsThemingEngine a

IsThemingEngine ThemingEngine

toThemingEngine :: (MonadIO m, IsThemingEngine o) => o -> m ThemingEngine

noThemingEngine :: Maybe ThemingEngine

Methods

getBackgroundColor

themingEngineGetBackgroundColor

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> [StateFlags]

state: state to retrieve the color for

-> m RGBA

Deprecated: (Since version 3.14)

Gets the background color for a given state.

Since: 3.0

getBorder

themingEngineGetBorder

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> [StateFlags]

state: state to retrieve the border for

-> m Border

Deprecated: (Since version 3.14)

Gets the border for a given state as a Border.

Since: 3.0

getBorderColor

themingEngineGetBorderColor

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> [StateFlags]

state: state to retrieve the color for

-> m RGBA

Deprecated: (Since version 3.14)

Gets the border color for a given state.

Since: 3.0

getColor

themingEngineGetColor

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> [StateFlags]

state: state to retrieve the color for

-> m RGBA

Deprecated: (Since version 3.14)

Gets the foreground color for a given state.

Since: 3.0

getDirection

themingEngineGetDirection

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> m TextDirection

Returns: the widget direction

Deprecated: (Since version 3.8)Use themingEngineGetState and check for GTK_STATE_FLAG_DIR_LTR and GTK_STATE_FLAG_DIR_RTL instead.

Returns the widget direction used for rendering.

Since: 3.0

getFont

themingEngineGetFont

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> [StateFlags]

state: state to retrieve the font for

-> m FontDescription

Returns: the FontDescription for the given state. This object is owned by GTK+ and should not be freed.

Deprecated: (Since version 3.8)Use gtk_theming_engine_get()

Returns the font description for a given state.

Since: 3.0

getJunctionSides

themingEngineGetJunctionSides

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> m [JunctionSides]

Returns: the widget direction

Deprecated: (Since version 3.14)

Returns the widget direction used for rendering.

Since: 3.0

getMargin

themingEngineGetMargin

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> [StateFlags]

state: state to retrieve the border for

-> m Border

Deprecated: (Since version 3.14)

Gets the margin for a given state as a Border.

Since: 3.0

getPadding

themingEngineGetPadding

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> [StateFlags]

state: state to retrieve the padding for

-> m Border

Deprecated: (Since version 3.14)

Gets the padding for a given state as a Border.

Since: 3.0

getPath

themingEngineGetPath

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> m WidgetPath

Returns: A WidgetPath

Deprecated: (Since version 3.14)

Returns the widget path used for style matching.

Since: 3.0

getProperty

themingEngineGetProperty

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> Text

property: the property name

-> [StateFlags]

state: state to retrieve the value for

-> m GValue

Deprecated: (Since version 3.14)

Gets a property value as retrieved from the style settings that apply to the currently rendered element.

Since: 3.0

getScreen

themingEngineGetScreen

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> m (Maybe Screen)

Returns: a Screen, or Nothing.

Deprecated: (Since version 3.14)

Returns the Screen to which engine currently rendering to.

getState

themingEngineGetState

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> m [StateFlags]

Returns: the state flags

Deprecated: (Since version 3.14)

returns the state used when rendering.

Since: 3.0

getStyleProperty

themingEngineGetStyleProperty

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> Text

propertyName: the name of the widget style property

-> m GValue

Deprecated: (Since version 3.14)

Gets the value for a widget style property.

Since: 3.0

hasClass

themingEngineHasClass

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> Text

styleClass: class name to look up

-> m Bool

Returns: True if engine has className defined

Deprecated: (Since version 3.14)

Returns True if the currently rendered contents have defined the given class name.

Since: 3.0

hasRegion

themingEngineHasRegion

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> Text

styleRegion: a region name

-> m (Bool, [RegionFlags])

Returns: True if region is defined

Deprecated: (Since version 3.14)

Returns True if the currently rendered contents have the region defined. If flagsReturn is not Nothing, it is set to the flags affecting the region.

Since: 3.0

load

themingEngineLoad

Arguments

:: (HasCallStack, MonadIO m)

=> Text

name: Theme engine name to load

-> m (Maybe ThemingEngine)

Returns: A theming engine, or Nothing if the engine name doesn’t exist.

Deprecated: (Since version 3.14)

Loads and initializes a theming engine module from the standard directories.

lookupColor

themingEngineLookupColor

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> Text

colorName: color name to lookup

-> m (Bool, RGBA)

Returns: True if colorName was found and resolved, False otherwise

Deprecated: (Since version 3.14)

Looks up and resolves a color name in the current style’s color map.

Since: 3.0

stateIsRunning

themingEngineStateIsRunning

Arguments

:: (HasCallStack, MonadIO m, IsThemingEngine a)

=> a

engine: a ThemingEngine

-> StateType

state: a widget state

-> m (Bool, Double)

Returns: True if there is a running transition animation for state.

Deprecated: (Since version 3.6)Always returns False

Returns True if there is a transition animation running for the current region (see styleContextPushAnimatableRegion).

If progress is not Nothing, the animation progress will be returned there, 0.0 means the state is closest to being False, while 1.0 means it’s closest to being True. This means transition animations will run from 0 to 1 when state is being set to True and from 1 to 0 when it’s being set to False.

Since: 3.0

Properties

name

constructThemingEngineName :: IsThemingEngine o => Text -> IO (GValueConstruct o)

getThemingEngineName :: (MonadIO m, IsThemingEngine o) => o -> m (Maybe Text)