void FSpriteEditorViewportClient::NotifySpriteBeingEditedHasChanged()
{
//@TODO: Ideally we do this before switching
EndTransaction();
// Refresh the viewport in case we were not in realtime mode
Invalidate();
// Update components to know about the new sprite being edited
UPaperSprite* Sprite = GetSpriteBeingEdited();
RenderSpriteComponent->SetSprite(Sprite);
UpdateSourceTextureSpriteFromSprite(Sprite);
InternalActivateNewMode(CurrentMode);
//@TODO: Only do this if the sprite isn't visible (may consider doing a flashing pulse around the source region rect?)
RequestFocusOnSelection(/*bInstant=*/ true);
if (Sprite != nullptr)
{
// Create and display a notification about the new sprite being edited
const FText NotificationErrorText = FText::Format(LOCTEXT("SwitchingToSprite", "Editing {0}"), FText::AsCultureInvariant(Sprite->GetName()));
FNotificationInfo Info(NotificationErrorText);
Info.ExpireDuration = 2.0f;
FSlateNotificationManager::Get().AddNotification(Info);
}
}
void FSpriteEditorViewportClient::Tick(float DeltaSeconds)
{
if (UPaperSprite* Sprite = GetSpriteBeingEdited())
{
//@TODO: Doesn't need to happen every frame, only when properties are updated
// Update the source texture view sprite (in case the texture has changed)
UpdateSourceTextureSpriteFromSprite(Sprite);
// Reposition the sprite (to be at the correct relative location to it's parent, undoing the pivot behavior)
const FVector2D PivotInTextureSpace = Sprite->ConvertPivotSpaceToTextureSpace(FVector2D::ZeroVector);
const FVector PivotInWorldSpace = TextureSpaceToWorldSpace(PivotInTextureSpace);
RenderSpriteComponent->SetRelativeLocation(PivotInWorldSpace);
bool bSourceTextureViewComponentVisibility = bShowSourceTexture || IsInSourceRegionEditMode();
if (bSourceTextureViewComponentVisibility != SourceTextureViewComponent->IsVisible())
{
RequestFocusOnSelection(/*bInstant=*/ true);
SourceTextureViewComponent->SetVisibility(bSourceTextureViewComponentVisibility);
}
bool bRenderTextureViewComponentVisibility = !IsInSourceRegionEditMode();
if (bRenderTextureViewComponentVisibility != RenderSpriteComponent->IsVisible())
{
RequestFocusOnSelection(/*bInstant=*/ true);
RenderSpriteComponent->SetVisibility(bRenderTextureViewComponentVisibility);
}
const FVector2D BoxSize(Sprite->GetSourceSize());
const FVector2D BoxLocation(Sprite->GetSourceUV() + (BoxSize * 0.5f));
FBox2D SpriteBounds(ForceInitToZero);
SpriteBounds.Min = BoxSize - BoxLocation * 0.5f;
SpriteBounds.Max = BoxSize + BoxLocation * 0.5f;
if (FSpriteGeometryEditMode* GeometryEditMode = ModeTools->GetActiveModeTyped<FSpriteGeometryEditMode>(FSpriteGeometryEditMode::EM_SpriteGeometry))
{
GeometryEditMode->SetNewGeometryPreferredBounds(SpriteBounds);
}
}
FPaperEditorViewportClient::Tick(DeltaSeconds);
if (!GIntraFrameDebuggingGameThread)
{
OwnedPreviewScene.GetWorld()->Tick(LEVELTICK_All, DeltaSeconds);
}
}
void FSingleTileEditorViewportClient::SetTileIndex(int32 InTileIndex)
{
const int32 OldTileIndex = TileBeingEditedIndex;
const bool bNewIndexValid = (InTileIndex >= 0) && (InTileIndex < TileSet->GetTileCount());
TileBeingEditedIndex = bNewIndexValid ? InTileIndex : INDEX_NONE;
FSpriteGeometryEditMode* GeometryEditMode = ModeTools->GetActiveModeTyped<FSpriteGeometryEditMode>(FSpriteGeometryEditMode::EM_SpriteGeometry);
check(GeometryEditMode);
FSpriteGeometryCollection* GeomToEdit = nullptr;
if (TileBeingEditedIndex != INDEX_NONE)
{
if (FPaperTileMetadata* Metadata = TileSet->GetMutableTileMetadata(InTileIndex))
{
GeomToEdit = &(Metadata->CollisionData);
}
}
// Tell the geometry editor about the new tile (if it exists)
GeometryEditMode->SetGeometryBeingEdited(GeomToEdit, /*bAllowCircles=*/ true, /*bAllowSubtractivePolygons=*/ false);
// Update the visual representation
UPaperSprite* DummySprite = nullptr;
if (TileBeingEditedIndex != INDEX_NONE)
{
DummySprite = NewObject<UPaperSprite>();
DummySprite->SpriteCollisionDomain = ESpriteCollisionMode::None;
DummySprite->PivotMode = ESpritePivotMode::Center_Center;
DummySprite->CollisionGeometry.GeometryType = ESpritePolygonMode::SourceBoundingBox;
DummySprite->RenderGeometry.GeometryType = ESpritePolygonMode::SourceBoundingBox;
FSpriteAssetInitParameters SpriteReinitParams;
SpriteReinitParams.Texture = TileSet->GetTileSheetTexture();
//@TODO: Should analyze the texture (*at a higher level, not per tile click!*) to pick the correct material
FVector2D UV;
TileSet->GetTileUV(TileBeingEditedIndex, /*out*/ UV);
SpriteReinitParams.Offset = FIntPoint((int32)UV.X, (int32)(UV.Y));
SpriteReinitParams.Dimension = TileSet->GetTileSize();
SpriteReinitParams.SetPixelsPerUnrealUnit(1.0f);
DummySprite->InitializeSprite(SpriteReinitParams);
}
PreviewTileSpriteComponent->SetSprite(DummySprite);
// Update the default geometry bounds
const FVector2D HalfTileSize(TileSet->GetTileSize().X * 0.5f, TileSet->GetTileSize().Y * 0.5f);
FBox2D DesiredBounds(ForceInitToZero);
DesiredBounds.Min = -HalfTileSize;
DesiredBounds.Max = HalfTileSize;
GeometryEditMode->SetNewGeometryPreferredBounds(DesiredBounds);
// Zoom to fit when we start editing a tile and weren't before, but leave it alone if we just changed tiles, in case they zoomed in or out further
if ((TileBeingEditedIndex != INDEX_NONE) && (OldTileIndex == INDEX_NONE))
{
RequestFocusOnSelection(/*bInstant=*/ true);
}
// Trigger a details panel customization rebuild
OnSingleTileIndexChanged.Broadcast(TileBeingEditedIndex, OldTileIndex);
// Redraw the viewport
Invalidate();
}
void FSpriteEditorViewportClient::UpdateSourceTextureSpriteFromSprite(UPaperSprite* SourceSprite)
{
UPaperSprite* TargetSprite = SourceTextureViewComponent->GetSprite();
check(TargetSprite);
if (SourceSprite != nullptr)
{
if ((SourceSprite->GetSourceTexture() != TargetSprite->GetSourceTexture()) || (TargetSprite->PixelsPerUnrealUnit != SourceSprite->PixelsPerUnrealUnit))
{
FComponentReregisterContext ReregisterSprite(SourceTextureViewComponent);
FSpriteAssetInitParameters SpriteReinitParams;
SpriteReinitParams.SetTextureAndFill(SourceSprite->SourceTexture);
SpriteReinitParams.DefaultMaterialOverride = SourceSprite->DefaultMaterial;
SpriteReinitParams.AlternateMaterialOverride = SourceSprite->AlternateMaterial;
SpriteReinitParams.SetPixelsPerUnrealUnit(SourceSprite->PixelsPerUnrealUnit);
TargetSprite->InitializeSprite(SpriteReinitParams);
RequestFocusOnSelection(/*bInstant=*/ true);
}
// Position the sprite for the mode its meant to be in
FVector2D CurrentPivotPosition;
ESpritePivotMode::Type CurrentPivotMode = TargetSprite->GetPivotMode(/*out*/CurrentPivotPosition);
FVector Translation(1.0f * PaperAxisZ);
if (IsInSourceRegionEditMode())
{
if (CurrentPivotMode != ESpritePivotMode::Bottom_Left)
{
TargetSprite->SetPivotMode(ESpritePivotMode::Bottom_Left, FVector2D::ZeroVector);
TargetSprite->PostEditChange();
}
SourceTextureViewComponent->SetSpriteColor(FLinearColor::White);
SourceTextureViewComponent->SetWorldTransform(FTransform(Translation));
}
else
{
const FVector2D PivotPosition = SourceSprite->GetPivotPosition();
if (CurrentPivotMode != ESpritePivotMode::Custom || CurrentPivotPosition != PivotPosition)
{
TargetSprite->SetPivotMode(ESpritePivotMode::Custom, PivotPosition);
TargetSprite->PostEditChange();
}
// Tint the source texture darker to help distinguish the two
SourceTextureViewComponent->SetSpriteColor(SpriteEditingConstants::SourceTextureDarkTintColor);
const bool bRotated = SourceSprite->IsRotatedInSourceImage();
if (bRotated)
{
FQuat Rotation(PaperAxisZ, FMath::DegreesToRadians(90.0f));
SourceTextureViewComponent->SetWorldTransform(FTransform(Rotation, Translation));
}
else
{
SourceTextureViewComponent->SetWorldTransform(FTransform(Translation));
}
}
}
else
{
// No source sprite, so don't draw the target either
TargetSprite->SourceTexture = nullptr;
}
}
