149 lines
3.0 KiB
C++
149 lines
3.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Components/GridPanel.h"
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#include "Widgets/DeclarativeSyntaxSupport.h"
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#include "Widgets/Layout/SGridPanel.h"
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#include "Components/GridSlot.h"
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#include "Editor/WidgetCompilerLog.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(GridPanel)
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#define LOCTEXT_NAMESPACE "UMG"
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/////////////////////////////////////////////////////
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// UGridPanel
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UGridPanel::UGridPanel(const FObjectInitializer& ObjectInitializer)
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: Super(ObjectInitializer)
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{
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bIsVariable = false;
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SetVisibilityInternal(ESlateVisibility::SelfHitTestInvisible);
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}
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void UGridPanel::ReleaseSlateResources(bool bReleaseChildren)
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{
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Super::ReleaseSlateResources(bReleaseChildren);
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MyGridPanel.Reset();
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}
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UClass* UGridPanel::GetSlotClass() const
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{
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return UGridSlot::StaticClass();
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}
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void UGridPanel::OnSlotAdded(UPanelSlot* InSlot)
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{
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// Add the child to the live canvas if it already exists
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if ( MyGridPanel.IsValid() )
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{
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CastChecked<UGridSlot>(InSlot)->BuildSlot(MyGridPanel.ToSharedRef());
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}
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}
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void UGridPanel::OnSlotRemoved(UPanelSlot* InSlot)
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{
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// Remove the widget from the live slot if it exists.
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if ( MyGridPanel.IsValid() && InSlot->Content)
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{
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TSharedPtr<SWidget> Widget = InSlot->Content->GetCachedWidget();
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if ( Widget.IsValid() )
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{
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MyGridPanel->RemoveSlot(Widget.ToSharedRef());
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}
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}
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}
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TSharedRef<SWidget> UGridPanel::RebuildWidget()
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{
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MyGridPanel = SNew(SGridPanel);
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for ( UPanelSlot* PanelSlot : Slots )
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{
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if ( UGridSlot* TypedSlot = Cast<UGridSlot>(PanelSlot) )
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{
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TypedSlot->Parent = this;
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TypedSlot->BuildSlot( MyGridPanel.ToSharedRef() );
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}
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}
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return MyGridPanel.ToSharedRef();
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}
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UGridSlot* UGridPanel::AddChildToGrid(UWidget* Content, int32 InRow, int32 InColumn)
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{
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UGridSlot* GridSlot = Cast<UGridSlot>(Super::AddChild(Content));
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if (GridSlot != nullptr)
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{
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GridSlot->SetRow(InRow);
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GridSlot->SetColumn(InColumn);
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}
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return GridSlot;
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}
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void UGridPanel::SynchronizeProperties()
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{
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Super::SynchronizeProperties();
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if (!MyGridPanel.IsValid())
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{
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return;
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}
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MyGridPanel->ClearFill();
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for ( int ColumnIndex = 0; ColumnIndex < ColumnFill.Num(); ColumnIndex++ )
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{
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MyGridPanel->SetColumnFill(ColumnIndex, ColumnFill[ColumnIndex]);
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}
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for ( int RowIndex = 0; RowIndex < RowFill.Num(); RowIndex++ )
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{
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MyGridPanel->SetRowFill(RowIndex, RowFill[RowIndex]);
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}
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}
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void UGridPanel::SetColumnFill(int32 ColumnIndex, float Coefficient)
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{
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while (ColumnFill.Num() <= ColumnIndex)
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{
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ColumnFill.Emplace(0.0f);
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}
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ColumnFill[ColumnIndex] = Coefficient;
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if (MyGridPanel.IsValid())
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{
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MyGridPanel->SetColumnFill(ColumnIndex, Coefficient);
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}
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}
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void UGridPanel::SetRowFill(int32 RowIndex, float Coefficient)
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{
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while (RowFill.Num() <= RowIndex)
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{
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RowFill.Emplace(0.0f);
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}
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RowFill[RowIndex] = Coefficient;
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if (MyGridPanel.IsValid())
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{
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MyGridPanel->SetRowFill(RowIndex, Coefficient);
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}
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}
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#if WITH_EDITOR
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const FText UGridPanel::GetPaletteCategory()
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{
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return LOCTEXT("Panel", "Panel");
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}
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#endif
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/////////////////////////////////////////////////////
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#undef LOCTEXT_NAMESPACE
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