mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-10 23:44:24 +00:00
66 lines
2 KiB
C++
66 lines
2 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library.
|
|
Copyright (c) 2022 - Raw Material Software Limited
|
|
|
|
JUCE is an open source library subject to commercial or open-source
|
|
licensing.
|
|
|
|
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
|
|
Agreement and JUCE Privacy Policy.
|
|
|
|
End User License Agreement: www.juce.com/juce-7-licence
|
|
Privacy Policy: www.juce.com/juce-privacy-policy
|
|
|
|
Or: You may also use this code under the terms of the GPL v3 (see
|
|
www.gnu.org/licenses).
|
|
|
|
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
|
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
|
DISCLAIMED.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
namespace juce
|
|
{
|
|
|
|
static void removeScaleFactorListenerFromAllPeers (ComponentPeer::ScaleFactorListener& listener)
|
|
{
|
|
for (int i = 0; i < ComponentPeer::getNumPeers(); ++i)
|
|
ComponentPeer::getPeer (i)->removeScaleFactorListener (&listener);
|
|
}
|
|
|
|
NativeScaleFactorNotifier::NativeScaleFactorNotifier (Component* comp, std::function<void (float)> onScaleChanged)
|
|
: ComponentMovementWatcher (comp),
|
|
scaleChanged (std::move (onScaleChanged))
|
|
{
|
|
componentPeerChanged();
|
|
}
|
|
|
|
NativeScaleFactorNotifier::~NativeScaleFactorNotifier()
|
|
{
|
|
removeScaleFactorListenerFromAllPeers (*this);
|
|
}
|
|
|
|
void NativeScaleFactorNotifier::nativeScaleFactorChanged (double newScaleFactor)
|
|
{
|
|
NullCheckedInvocation::invoke (scaleChanged, (float) newScaleFactor);
|
|
}
|
|
|
|
void NativeScaleFactorNotifier::componentPeerChanged()
|
|
{
|
|
removeScaleFactorListenerFromAllPeers (*this);
|
|
|
|
if (auto* x = getComponent())
|
|
peer = x->getPeer();
|
|
|
|
if (auto* x = peer)
|
|
{
|
|
x->addScaleFactorListener (this);
|
|
nativeScaleFactorChanged (x->getPlatformScaleFactor());
|
|
}
|
|
}
|
|
|
|
} // namespace juce
|