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134 lines
2.6 KiB
C++
134 lines
2.6 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#include "UMGPrivatePCH.h"
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/////////////////////////////////////////////////////
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// UHorizontalBox
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UHorizontalBox::UHorizontalBox(const FPostConstructInitializeProperties& PCIP)
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: Super(PCIP)
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{
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bIsVariable = false;
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}
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int32 UHorizontalBox::GetChildrenCount() const
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{
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return Slots.Num();
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}
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UWidget* UHorizontalBox::GetChildAt(int32 Index) const
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{
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return Slots[Index]->Content;
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}
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int32 UHorizontalBox::GetChildIndex(UWidget* Content) const
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{
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for ( int32 SlotIndex = 0; SlotIndex < Slots.Num(); ++SlotIndex )
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{
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UHorizontalBoxSlot* Slot = Slots[SlotIndex];
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if ( Slot->Content == Content )
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{
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return SlotIndex;
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}
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}
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return -1;
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}
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bool UHorizontalBox::AddChild(UWidget* Child, FVector2D Position)
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{
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UHorizontalBoxSlot* Slot = AddSlot(Child);
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return true;
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}
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bool UHorizontalBox::RemoveChild(UWidget* Child)
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{
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int32 SlotIndex = GetChildIndex(Child);
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if ( SlotIndex != -1 )
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{
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Slots.RemoveAt(SlotIndex);
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// Remove the widget from the live slot if it exists.
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if (MyHorizontalBox.IsValid())
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{
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MyHorizontalBox->RemoveSlot(Child->GetWidget());
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}
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return true;
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}
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return false;
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}
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void UHorizontalBox::ReplaceChildAt(int32 Index, UWidget* Content)
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{
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UHorizontalBoxSlot* Slot = Slots[Index];
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Slot->Content = Content;
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Content->Slot = Slot;
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}
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void UHorizontalBox::InsertChildAt(int32 Index, UWidget* Content)
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{
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UHorizontalBoxSlot* Slot = ConstructObject<UHorizontalBoxSlot>(UHorizontalBoxSlot::StaticClass(), this);
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Slot->SetFlags(RF_Transactional);
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Slot->Content = Content;
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Slot->Parent = this;
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Content->Slot = Slot;
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Slots.Insert(Slot, Index);
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}
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TSharedRef<SWidget> UHorizontalBox::RebuildWidget()
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{
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MyHorizontalBox = SNew(SHorizontalBox);
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for ( auto Slot : Slots )
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{
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Slot->Parent = this;
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Slot->BuildSlot( MyHorizontalBox.ToSharedRef() );
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}
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return BuildDesignTimeWidget( MyHorizontalBox.ToSharedRef() );
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}
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UHorizontalBoxSlot* UHorizontalBox::AddSlot(UWidget* Content)
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{
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UHorizontalBoxSlot* Slot = ConstructObject<UHorizontalBoxSlot>(UHorizontalBoxSlot::StaticClass(), this);
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Slot->SetFlags(RF_Transactional);
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Slot->Content = Content;
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Slot->Parent = this;
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Content->Slot = Slot;
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Slots.Add(Slot);
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// Add the child to the live canvas if it already exists
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if ( MyHorizontalBox.IsValid() )
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{
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Slot->BuildSlot(MyHorizontalBox.ToSharedRef());
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}
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return Slot;
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}
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#if WITH_EDITOR
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void UHorizontalBox::ConnectEditorData()
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{
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for ( UHorizontalBoxSlot* Slot : Slots )
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{
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Slot->Content->Slot = Slot;
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Slot->Parent = this;
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}
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}
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const FSlateBrush* UHorizontalBox::GetEditorIcon()
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{
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return FUMGStyle::Get().GetBrush("Widget.HorizontalBox");
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}
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#endif
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