Files
UnrealEngine/Engine/Source/Developer/MessageLog/Private/UserInterface/SMessageLog.cpp
2025-05-18 13:04:45 +08:00

164 lines
4.4 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "UserInterface/SMessageLog.h"
#include "Widgets/Layout/SSplitter.h"
#include "Misc/ConfigCacheIni.h"
#include "SlateOptMacros.h"
#include "Presentation/MessageLogViewModel.h"
#include "UserInterface/SMessageLogListing.h"
#include "Widgets/Views/SListView.h"
#include "UserInterface/SMessageLogCategoryListRow.h"
#define LOCTEXT_NAMESPACE "SMessageLog"
/* SMessageLog structors
*****************************************************************************/
SMessageLog::~SMessageLog()
{
ViewModel->OnSelectionChanged().RemoveAll(this);
}
BEGIN_SLATE_FUNCTION_BUILD_OPTIMIZATION
void SMessageLog::Construct( const FArguments& InArgs, const TSharedRef<FMessageLogViewModel>& InViewModel )
{
ViewModel = InViewModel;
ChildSlot
[
SNew(SBorder)
.BorderImage(FAppStyle::Get().GetBrush("Brushes.Panel"))
.Padding(FMargin(20.0f, 13.97f, 16.f, 16.f))
[
SNew(SSplitter)
.Orientation(Orient_Horizontal)
.Style(FAppStyle::Get(), "SplitterPanel")
.PhysicalSplitterHandleSize(10.0f)
+ SSplitter::Slot()
.Value(0.28f)
[
SNew(SBorder)
.BorderImage(FAppStyle::Get().GetBrush("Brushes.Recessed"))
.Padding(FMargin(16.f, 8.f, 0, 0))
[
// log categories list
SAssignNew(CategoriesListView, SListView<IMessageLogListingPtr>)
.ListItemsSource(&ViewModel->GetLogListingViewModels())
.OnGenerateRow(this, &SMessageLog::HandleCategoriesListGenerateRow)
.OnSelectionChanged(this, &SMessageLog::HandleCategoriesListSelectionChanged)
.SelectionMode(ESelectionMode::Single)
.HeaderRow
(
SNew(SHeaderRow)
.Visibility(EVisibility::Collapsed)
+ SHeaderRow::Column("Name")
.DefaultLabel(LOCTEXT("CategoriesListNameColumnHeader", "Category"))
.FillWidth(1.0)
)
]
]
+ SSplitter::Slot()
.Value(0.72f)
[
SAssignNew(CurrentListingDisplay, SBorder)
.BorderImage(FAppStyle::Get().GetBrush("Brushes.Recessed"))
.Padding(0.0f)
]
]
];
// Default to the first available (or the last used) listing
const TArray<IMessageLogListingPtr>& ViewModels = ViewModel->GetLogListingViewModels();
if (ViewModels.Num() > 0)
{
IMessageLogListingPtr DefaultViewModel = ViewModels[0];
if (FPaths::FileExists(GEditorPerProjectIni))
{
FString LogName;
if (GConfig->GetString(TEXT("MessageLog"), TEXT("LastLogListing"), LogName, GEditorPerProjectIni))
{
IMessageLogListingPtr LoadedViewModel = ViewModel->FindLogListingViewModel(FName(*LogName));
if (LoadedViewModel.IsValid())
{
DefaultViewModel = LoadedViewModel;
}
}
}
CategoriesListView->SetSelection(DefaultViewModel, ESelectInfo::Direct);
}
ViewModel->OnSelectionChanged().AddSP(this, &SMessageLog::HandleSelectionUpdated);
ViewModel->OnChanged().AddSP(this, &SMessageLog::RefreshCategoryList);
}
END_SLATE_FUNCTION_BUILD_OPTIMIZATION
void SMessageLog::HandleSelectionUpdated()
{
TSharedPtr<FMessageLogListingViewModel> LogListingViewModel = ViewModel->GetCurrentListingViewModel();
if ( LogListingViewModel.IsValid() )
{
if ( !CategoriesListView->IsItemSelected(LogListingViewModel) )
{
CategoriesListView->SetSelection(LogListingViewModel, ESelectInfo::Direct);
}
}
}
void SMessageLog::RefreshCategoryList()
{
CategoriesListView->RequestListRefresh();
}
/* SWidget overrides
*****************************************************************************/
FReply SMessageLog::OnKeyDown( const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent )
{
if (LogListing.IsValid())
{
return LogListing->GetCommandList()->ProcessCommandBindings(InKeyEvent)
? FReply::Handled()
: FReply::Unhandled();
}
return FReply::Unhandled();
}
/* SMessageLog callbacks
*****************************************************************************/
TSharedRef<ITableRow> SMessageLog::HandleCategoriesListGenerateRow( IMessageLogListingPtr Item, const TSharedRef<STableViewBase>& OwnerTable )
{
return SNew(SMessageLogCategoryListRow, Item.ToSharedRef(), OwnerTable);
}
void SMessageLog::HandleCategoriesListSelectionChanged( IMessageLogListingPtr Selection, ESelectInfo::Type SelectInfo )
{
if (Selection.IsValid())
{
CurrentListingDisplay->SetContent(SAssignNew(LogListing, SMessageLogListing, Selection.ToSharedRef()));
}
else
{
CurrentListingDisplay->SetContent(SNullWidget::NullWidget);
}
}
#undef LOCTEXT_NAMESPACE