77 lines
3.8 KiB
C++
77 lines
3.8 KiB
C++
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "SViewportToolBarIconMenu.h"
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#include "Widgets/SBoxPanel.h"
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#include "Widgets/Images/SImage.h"
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#include "Widgets/Text/STextBlock.h"
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#include "Widgets/Layout/SBox.h"
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#include "Widgets/Input/SMenuAnchor.h"
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#include "Widgets/Input/SButton.h"
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#include "EditorStyleSet.h"
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void SViewportToolBarIconMenu::Construct(const FArguments& InArgs)
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{
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ParentToolBar = InArgs._ParentToolBar;
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const FName ButtonStyle = FEditorStyle::Join(InArgs._Style.Get(), ".Button");
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const FSlateIcon& Icon = InArgs._Icon.Get();
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SAssignNew(MenuAnchor, SMenuAnchor)
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.Placement(MenuPlacement_BelowAnchor)
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.OnGetMenuContent(InArgs._OnGetMenuContent)
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[SNew(SButton)
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.ButtonStyle(FEditorStyle::Get(), ButtonStyle)
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.ContentPadding(FMargin(5.0f, 0.0f))
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.OnClicked(this, &SViewportToolBarIconMenu::OnMenuClicked)
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[SNew(SHorizontalBox)
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// Icon
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+ SHorizontalBox::Slot()
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.AutoWidth()
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[SNew(SBox)
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.WidthOverride(16)
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.HeightOverride(16)
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.HAlign(HAlign_Center)
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.VAlign(VAlign_Center)
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[SNew(SImage)
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.Image(Icon.GetIcon())]]
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// Spacer
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+ SHorizontalBox::Slot()
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.AutoWidth()
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.Padding(FMargin(4.0f, 0.0f))
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// Menu dropdown
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+ SHorizontalBox::Slot()
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.AutoWidth()
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[SNew(SVerticalBox) + SVerticalBox::Slot().AutoHeight().HAlign(HAlign_Center).VAlign(VAlign_Top)[SNew(STextBlock).TextStyle(FEditorStyle::Get(), FEditorStyle::Join(InArgs._Style.Get(), ".Label")).Text(InArgs._Label)] + SVerticalBox::Slot().AutoHeight().VAlign(VAlign_Bottom)[SNew(SHorizontalBox) + SHorizontalBox::Slot().FillWidth(1.0f)
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+ SHorizontalBox::Slot().AutoWidth()[SNew(SBox).WidthOverride(4).HeightOverride(4)[SNew(SImage).Image(FEditorStyle::GetBrush("ComboButton.Arrow")).ColorAndOpacity(FLinearColor::Black)]]
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+ SHorizontalBox::Slot().FillWidth(1.0f)]]]];
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ChildSlot
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[MenuAnchor.ToSharedRef()];
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}
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FReply SViewportToolBarIconMenu::OnMenuClicked()
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{
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// If the menu button is clicked toggle the state of the menu anchor which will open or close the menu
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MenuAnchor->SetIsOpen(!MenuAnchor->IsOpen());
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ParentToolBar.Pin()->SetOpenMenu(MenuAnchor);
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return FReply::Handled();
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}
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void SViewportToolBarIconMenu::OnMouseEnter(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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// See if there is another menu on the same tool bar already open
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TWeakPtr<SMenuAnchor> OpenedMenu = ParentToolBar.Pin()->GetOpenMenu();
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if (OpenedMenu.IsValid() && OpenedMenu.Pin()->IsOpen() && OpenedMenu.Pin() != MenuAnchor)
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{
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// There is another menu open so we open this menu and close the other
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ParentToolBar.Pin()->SetOpenMenu(MenuAnchor);
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MenuAnchor->SetIsOpen(true);
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}
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}
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