83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
#pragma once
|
|
|
|
#include "CoreMinimal.h"
|
|
#include "WingServer.h"
|
|
#include "WingHandler.h"
|
|
#include "WingFetcher.h"
|
|
#include "WingUtils.h"
|
|
#include "WingWidgets.h"
|
|
#include "WidgetBlueprint.h"
|
|
#include "Blueprint/WidgetTree.h"
|
|
#include "Components/PanelWidget.h"
|
|
#include "Widget_Reparent.generated.h"
|
|
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// ---------------------------------------------------------------------------
|
|
// ---------------------------------------------------------------------------
|
|
|
|
UCLASS()
|
|
class UWing_Widget_Reparent : public UWingHandler
|
|
{
|
|
GENERATED_BODY()
|
|
|
|
public:
|
|
UPROPERTY(EditAnywhere, meta=(Description="Path to the widget, eg /Game/Widgets/WB_Test,widget:MyButton"))
|
|
FString Widget;
|
|
|
|
UPROPERTY(EditAnywhere, meta=(Description="Name of the new parent widget. Must be a panel."))
|
|
FString Parent;
|
|
|
|
virtual void Register() override
|
|
{
|
|
UWingServer::AddHandler(this,
|
|
TEXT("Move a widget to a different parent in a Widget Blueprint's widget tree."));
|
|
}
|
|
virtual void Handle() override
|
|
{
|
|
// Walk to the widget.
|
|
WingFetcher F(WingOut::Stdout);
|
|
UWidget* TargetWidget = F.Walk(Widget).Cast<UWidget>();
|
|
if (!TargetWidget) return;
|
|
|
|
// Get the widget blueprint from the widget's outer chain.
|
|
UWidgetBlueprint* BP = TargetWidget->GetTypedOuter<UWidgetBlueprint>();
|
|
if (!BP)
|
|
{
|
|
WingOut::Stdout.Printf(TEXT("ERROR: Could not find owning WidgetBlueprint\n"));
|
|
return;
|
|
}
|
|
UWidgetTree* Tree = BP->WidgetTree;
|
|
|
|
// Get all widgets for name lookup.
|
|
TArray<UWidget*> AllWidgets;
|
|
Tree->GetAllWidgets(AllWidgets);
|
|
|
|
FString WidgetName = WingUtils::FormatName(TargetWidget);
|
|
|
|
// Find the new parent and verify it's a panel with room.
|
|
UWidget* ParentWidget = WingUtils::FindOneWithExternalID(Parent, AllWidgets, TEXT("Widget"), WingOut::Stdout);
|
|
if (!ParentWidget) return;
|
|
if (!WingWidgets::CheckCanBeParent(ParentWidget, WingOut::Stdout)) return;
|
|
UPanelWidget* ParentPanel = Cast<UPanelWidget>(ParentWidget);
|
|
|
|
// Check for circular reparenting.
|
|
for (UPanelWidget* Ancestor = ParentPanel; Ancestor != nullptr; Ancestor = Ancestor->GetParent())
|
|
{
|
|
if (Ancestor == TargetWidget)
|
|
{
|
|
WingOut::Stdout.Printf(TEXT("ERROR: Cannot reparent '%s' under itself\n"), *WidgetName);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Remove from current location.
|
|
Tree->RemoveWidget(TargetWidget);
|
|
|
|
// Add to new parent.
|
|
ParentPanel->AddChild(TargetWidget);
|
|
|
|
WingOut::Stdout.Printf(TEXT("Reparented '%s' under '%s'\n"), *WidgetName, *Parent);
|
|
}
|
|
};
|