juce::NativeScaleFactorNotifier Class Reference

#include <juce_NativeScaleFactorNotifier.h>

Inheritance diagram for juce::NativeScaleFactorNotifier:

Public Member Functions
	NativeScaleFactorNotifier (Component *comp, std::function< void(float)> onScaleChanged)
	~NativeScaleFactorNotifier () override

Private Member Functions
void	nativeScaleFactorChanged (double newScaleFactor) override
void	componentPeerChanged () override
void	componentVisibilityChanged () override
void	componentMovedOrResized (bool, bool) override
void	componentVisibilityChanged (Component &) override
void	componentMovedOrResized (Component &, bool wasMoved, bool wasResized) override
Private Member Functions inherited from juce::ComponentMovementWatcher
	ComponentMovementWatcher (Component *componentToWatch)
	~ComponentMovementWatcher () override
Component *	getComponent () const noexcept
void	componentParentHierarchyChanged (Component &) override
void	componentBeingDeleted (Component &) override
Private Member Functions inherited from juce::ComponentListener
virtual	~ComponentListener ()=default
virtual void	componentBroughtToFront (Component &component)
virtual void	componentChildrenChanged (Component &component)
virtual void	componentNameChanged (Component &component)
virtual void	componentEnablementChanged (Component &component)
Private Member Functions inherited from juce::ComponentPeer::ScaleFactorListener
virtual	~ScaleFactorListener ()=default

Private Attributes
ComponentPeer *	peer = nullptr
std::function< void(float)>	scaleChanged

Detailed Description

Calls a function every time the native scale factor of a component's peer changes.

This is used in the VST and VST3 wrappers to ensure that the editor's scale is kept in sync with the scale of its containing component.

Constructor & Destructor Documentation

NativeScaleFactorNotifier()

juce::NativeScaleFactorNotifier::NativeScaleFactorNotifier	(	Component *	comp,
		std::function< void(float)>	onScaleChanged )

Constructs an instance.

While the instance is alive, it will listen for changes to the scale factor of the comp's peer, and will call onScaleChanged whenever this scale factor changes.

Parameters

comp	The component to observe
onScaleChanged	A function that will be called when the backing scale factor changes

~NativeScaleFactorNotifier()

juce::NativeScaleFactorNotifier::~NativeScaleFactorNotifier ( )

override

Member Function Documentation

componentMovedOrResized() [1/2]

void juce::NativeScaleFactorNotifier::componentMovedOrResized ( bool wasMoved, bool wasResized )

inlineoverrideprivatevirtual

This callback happens when the component that is being watched is moved relative to its top-level peer window, or when it is resized.

Implements juce::ComponentMovementWatcher.

componentMovedOrResized() [2/2]

void juce::ComponentMovementWatcher::componentMovedOrResized ( Component & component, bool wasMoved, bool wasResized )

overrideprivatevirtual

Called when the component's position or size changes.

Parameters

component	the component that was moved or resized
wasMoved	true if the component's top-left corner has just moved
wasResized	true if the component's width or height has just changed

See also

Component::setBounds, Component::resized, Component::moved

Reimplemented from juce::ComponentMovementWatcher.

componentPeerChanged()

void juce::NativeScaleFactorNotifier::componentPeerChanged ( )

overrideprivatevirtual

This callback happens when the component's top-level peer is changed.

Implements juce::ComponentMovementWatcher.

componentVisibilityChanged() [1/2]

void juce::NativeScaleFactorNotifier::componentVisibilityChanged ( )

inlineoverrideprivatevirtual

This callback happens when the component's visibility state changes, possibly due to one of its parents being made visible or invisible.

Implements juce::ComponentMovementWatcher.

componentVisibilityChanged() [2/2]

void juce::ComponentMovementWatcher::componentVisibilityChanged ( Component & component )

overrideprivatevirtual

Called when the component is made visible or invisible.

Parameters

component

the component that changed

See also

Component::setVisible

Reimplemented from juce::ComponentMovementWatcher.

nativeScaleFactorChanged()

void juce::NativeScaleFactorNotifier::nativeScaleFactorChanged ( double newScaleFactor )

overrideprivatevirtual

Called when the scale factor changes.

Implements juce::ComponentPeer::ScaleFactorListener.

Member Data Documentation

peer

ComponentPeer* juce::NativeScaleFactorNotifier::peer = nullptr

private

scaleChanged

std::function<void (float)> juce::NativeScaleFactorNotifier::scaleChanged

private

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

• /home/runner/work/lmms-fork/lmms-fork/plugins/CarlaBase/carla/source/modules/juce_audio_processors/utilities/juce_NativeScaleFactorNotifier.h
• /home/runner/work/lmms-fork/lmms-fork/plugins/CarlaBase/carla/source/modules/juce_audio_processors/utilities/juce_NativeScaleFactorNotifier.cpp