void UWidgetBlueprintLibrary::SetInputMode_UIOnly(APlayerController* Target, UWidget* InWidgetToFocus, bool bLockMouseToViewport)
{
if (Target != nullptr)
{
FInputModeUIOnly InputMode;
InputMode.SetLockMouseToViewport(bLockMouseToViewport);
if (InWidgetToFocus != nullptr)
{
InputMode.SetWidgetToFocus(InWidgetToFocus->TakeWidget());
}
Target->SetInputMode(InputMode);
}
}
void APacmanMainMenuHUD::DisplayMenu(TSharedPtr<SCompoundWidget> MenuToDisplay)
{
// If there is visible menu, hide it
if (DisplayedMenuStack.Num() > 0)
{
GEngine->GameViewport->RemoveViewportWidgetContent(DisplayedMenuStack.Top().ToSharedRef());
}
// Show new menu
GEngine->GameViewport->AddViewportWidgetContent(MenuToDisplay.ToSharedRef());
DisplayedMenuStack.Push(MenuToDisplay.ToSharedRef());
// Only GUI elements can handle input
FInputModeUIOnly InputMode;
InputMode.SetLockMouseToViewport(true);
InputMode.SetWidgetToFocus(MenuToDisplay);
GetOwningPlayerController()->SetInputMode(InputMode);
}
void APacmanMainMenuHUD::HideMenu()
{
// There must be at least 2 menus, main menu and one sub-menu that we want to hide
if (DisplayedMenuStack.Num() < 2)
{
return;
}
GEngine->GameViewport->RemoveViewportWidgetContent(DisplayedMenuStack.Pop().ToSharedRef());
auto &MenuToDisplay = DisplayedMenuStack.Top();
// Show previous menu
GEngine->GameViewport->AddViewportWidgetContent(MenuToDisplay.ToSharedRef());
// Only GUI elements can handle input
FInputModeUIOnly InputMode;
InputMode.SetLockMouseToViewport(true);
InputMode.SetWidgetToFocus(MenuToDisplay);
GetOwningPlayerController()->SetInputMode(InputMode);
}
