File size: 2,214 Bytes
b315adb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | // Copyright Epic Games, Inc. All Rights Reserved.
#include "GameSettingRegistryChangeTracker.h"
#include "GameSettingRegistry.h"
#include "GameSettingValue.h"
#define LOCTEXT_NAMESPACE "GameSetting"
FGameSettingRegistryChangeTracker::FGameSettingRegistryChangeTracker()
{
}
FGameSettingRegistryChangeTracker::~FGameSettingRegistryChangeTracker()
{
if (UGameSettingRegistry* StrongRegistry = Registry.Get())
{
StrongRegistry->OnSettingChangedEvent.RemoveAll(this);
}
}
void FGameSettingRegistryChangeTracker::WatchRegistry(UGameSettingRegistry* InRegistry)
{
ClearDirtyState();
StopWatchingRegistry();
if (Registry.Get() != InRegistry)
{
Registry = InRegistry;
InRegistry->OnSettingChangedEvent.AddRaw(this, &FGameSettingRegistryChangeTracker::HandleSettingChanged);
}
}
void FGameSettingRegistryChangeTracker::StopWatchingRegistry()
{
if (UGameSettingRegistry* StrongRegistry = Registry.Get())
{
StrongRegistry->OnSettingChangedEvent.RemoveAll(this);
Registry.Reset();
}
}
void FGameSettingRegistryChangeTracker::ClearDirtyState()
{
ensure(!bRestoringSettings);
if (bRestoringSettings)
{
return;
}
bSettingsChanged = false;
DirtySettings.Reset();
}
void FGameSettingRegistryChangeTracker::ApplyChanges()
{
for (auto Entry : DirtySettings)
{
if (UGameSettingValue* SettingValue = Cast<UGameSettingValue>(Entry.Value))
{
SettingValue->Apply();
SettingValue->StoreInitial();
}
}
ClearDirtyState();
}
void FGameSettingRegistryChangeTracker::RestoreToInitial()
{
ensure(!bRestoringSettings);
if (bRestoringSettings)
{
return;
}
{
TGuardValue<bool> LocalGuard(bRestoringSettings, true);
for (auto Entry : DirtySettings)
{
if (UGameSettingValue* SettingValue = Cast<UGameSettingValue>(Entry.Value))
{
SettingValue->RestoreToInitial();
}
}
}
ClearDirtyState();
}
void FGameSettingRegistryChangeTracker::HandleSettingChanged(UGameSetting* Setting, EGameSettingChangeReason Reason)
{
if (bRestoringSettings)
{
return;
}
bSettingsChanged = true;
DirtySettings.Add(FObjectKey(Setting), Setting);
}
#undef LOCTEXT_NAMESPACE
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