Struct qt_gui::q_icon_engine::IconEngineHook

pub struct IconEngineHook(/* private fields */);

These enum values are used for virtual_hook() to allow additional queries to icon engine without breaking binary compatibility.

C++ enum: QIconEngine::IconEngineHook.

C++ documentation:

These enum values are used for virtual_hook() to allow additional queries to icon engine without breaking binary compatibility.

This enum was introduced or modified in Qt 4.5.

See also virtual_hook().

Implementations

impl IconEngineHook

pub fn to_int(&self) -> c_int

impl IconEngineHook

pub const AvailableSizesHook: IconEngineHook = _

Allows to query the sizes of the contained pixmaps for pixmap-based engines. The data argument of the virtual_hook() function is a AvailableSizesArgument pointer that should be filled with icon sizes. Engines that work in terms of a scalable, vectorial format normally return an empty list. (C++ enum variant: AvailableSizesHook = 1)

pub const IconNameHook: IconEngineHook = _

Allows to query the name used to create the icon, for example when instantiating an icon using QIcon::fromTheme(). (C++ enum variant: IconNameHook = 2)

pub const IsNullHook: IconEngineHook = _

Allow to query if this engine represents a null icon. The data argument of the virtual_hook() is a pointer to a bool that can be set to true if the icon is null. This enum value was added in Qt 5.7. (C++ enum variant: IsNullHook = 3)

pub const ScaledPixmapHook: IconEngineHook = _

Provides a way to get a pixmap that is scaled according to the given scale (typically equal to the device pixel ratio). The data argument of the virtual_hook() function is a ScaledPixmapArgument pointer that contains both the input and output arguments. This enum value was added in Qt 5.9. (C++ enum variant: ScaledPixmapHook = 4)

Trait Implementations

impl Clone for IconEngineHook

fn clone(&self) -> IconEngineHook

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IconEngineHook

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<IconEngineHook> for c_int

fn from(value: IconEngineHook) -> Self

Converts to this type from the input type.

impl From<i32> for IconEngineHook

fn from(value: c_int) -> Self

Converts to this type from the input type.

impl PartialEq for IconEngineHook

fn eq(&self, other: &IconEngineHook) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for IconEngineHook

impl Eq for IconEngineHook

impl StructuralEq for IconEngineHook

impl StructuralPartialEq for IconEngineHook