int32 SBar::OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const
{
// Initialize our brush here
const FSlateBrush* BrushResource = new FSlateBrush();
// Draw background box
FSlateDrawElement::MakeBox(
OutDrawElements,
LayerId,
AllottedGeometry.ToPaintGeometry(),
BrushResource,
ESlateDrawEffect::None,
FLinearColor::Gray * 0.35f
);
// Calculate Current / Max ratio and turn it into screen width
FVector2D WidgetSize = AllottedGeometry.Size;
float HealthWidth = (Current * WidgetSize.X) / Max;
// Draw current health
FSlateDrawElement::MakeBox(
OutDrawElements,
LayerId,
AllottedGeometry.ToPaintGeometry(FVector2D::ZeroVector, FVector2D(HealthWidth, WidgetSize.Y)),
BrushResource,
ESlateDrawEffect::None,
Color
);
// Draw text on health bar
FSlateFontInfo MyFont(FPaths::EngineContentDir() / TEXT("Slate/Fonts/Roboto-Regular.ttf"), 15);
const FText TextNew = FText::FromString(FString::Printf(TEXT("%s: %.0f / %.0f"), Text.ToString().GetCharArray().GetData(), Current, Max));
const TSharedRef< FSlateFontMeasure > FontMeasureService = FSlateApplication::Get().GetRenderer()->GetFontMeasureService();
FVector2D DrawSize = FontMeasureService->Measure(TextNew, MyFont);
FVector2D Pos = WidgetSize / 2.0f - DrawSize / 2.0f;
FSlateDrawElement::MakeText(
OutDrawElements,
LayerId,
AllottedGeometry.ToPaintGeometry(Pos, DrawSize),
TextNew,
MyFont,
ESlateDrawEffect::None,
FLinearColor::White
);
return SCompoundWidget::OnPaint(Args, AllottedGeometry, MyClippingRect, OutDrawElements, LayerId, InWidgetStyle, bParentEnabled);
}
int32 STimeline::OnPaint( const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled ) const
{
// Used to track the layer ID we will return.
int32 RetLayerId = LayerId;
const TSharedRef< FSlateFontMeasure > FontMeasureService = FSlateApplication::Get().GetRenderer()->GetFontMeasureService();
bool bEnabled = ShouldBeEnabled( bParentEnabled );
const ESlateDrawEffect::Type DrawEffects = bEnabled ? ESlateDrawEffect::None : ESlateDrawEffect::DisabledEffect;
const FLinearColor ColorAndOpacitySRGB = InWidgetStyle.GetColorAndOpacityTint();
static const FLinearColor SelectedBarColor(FLinearColor::White);
// Paint inside the border only.
const FVector2D BorderPadding = FTaskGraphStyle::Get()->GetVector("TaskGraph.ProgressBar.BorderPadding");
const FSlateRect ForegroundClippingRect = AllottedGeometry.GetClippingRect().InsetBy(FMargin(BorderPadding.X, BorderPadding.Y)).IntersectionWith(MyClippingRect);
const float OffsetX = DrawingOffsetX; // BorderPadding.X
const float Width = DrawingGeometry.Size.X; // AllottedGeometry.Size.X - - 2.0f * BorderPadding.X
FSlateFontInfo MyFont( FPaths::EngineContentDir() / TEXT("Slate/Fonts/Roboto-Regular.ttf"), 10 );
//FSlateDrawElement::MakeBox(
// OutDrawElements,
// RetLayerId++,
// AllottedGeometry.ToPaintGeometry(),
// BackgroundImage,
// MyClippingRect,
// DrawEffects,
// ColorAndOpacitySRGB
//);
// Create line points
const float RoundedMax = FMath::CeilToInt( MaxValue );
const float RoundedMin = FMath::FloorToInt( MinValue );
const float TimeScale = MaxValue - MinValue;
const int32 NumValues = FMath::FloorToInt( AllottedGeometry.Size.X * Zoom / FixedLabelSpacing );
TArray< FVector2D > LinePoints;
LinePoints.AddUninitialized( 2 );
{
LinePoints[0] = FVector2D( OffsetX, BorderPadding.Y + 1.0f );
LinePoints[1] = FVector2D( OffsetX + Width, BorderPadding.Y + 1.0f );
// Draw lines
FSlateDrawElement::MakeLines(
OutDrawElements,
RetLayerId++,
AllottedGeometry.ToPaintGeometry(),
LinePoints,
MyClippingRect,
ESlateDrawEffect::None,
FLinearColor::White
);
}
const FVector2D TextDrawSize = FontMeasureService->Measure(TEXT("0.00"), MyFont);
const float LineHeight = AllottedGeometry.Size.Y - BorderPadding.Y - TextDrawSize.Y - 2.0f;
for( int32 LineIndex = 0; LineIndex <= NumValues; LineIndex++ )
{
const float NormalizedX = (float)LineIndex / NumValues;
const float LineX = Offset + NormalizedX * Zoom;
if( LineX < 0.0f || LineX > 1.0f )
{
continue;
}
const float LineXPos = OffsetX + Width * LineX;
LinePoints[0] = FVector2D( LineXPos, BorderPadding.Y );
LinePoints[1] = FVector2D( LineXPos, LineHeight );
// Draw lines
FSlateDrawElement::MakeLines(
OutDrawElements,
RetLayerId++,
AllottedGeometry.ToPaintGeometry(),
LinePoints,
MyClippingRect,
ESlateDrawEffect::None,
FLinearColor::White
);
FString ValueText( FString::Printf( TEXT("%.2f"), MinValue + NormalizedX * TimeScale ) );
FVector2D DrawSize = FontMeasureService->Measure(ValueText, MyFont);
FVector2D TextPos( LineXPos - DrawSize.X * 0.5f, LineHeight );
if( TextPos.X < 0.0f )
{
TextPos.X = 0.0f;
}
else if( (TextPos.X + DrawSize.X) > AllottedGeometry.Size.X )
{
TextPos.X = OffsetX + Width - DrawSize.X;
}
FSlateDrawElement::MakeText(
OutDrawElements,
RetLayerId,
AllottedGeometry.ToOffsetPaintGeometry( TextPos ),
ValueText,
MyFont,
MyClippingRect,
ESlateDrawEffect::None,
FLinearColor::White
);
}
// Always draw lines at the start and at the end of the timeline
{
LinePoints[0] = FVector2D( OffsetX, BorderPadding.Y );
LinePoints[1] = FVector2D( OffsetX, LineHeight );
// Draw lines
FSlateDrawElement::MakeLines(
OutDrawElements,
RetLayerId++,
AllottedGeometry.ToPaintGeometry(),
LinePoints,
MyClippingRect,
ESlateDrawEffect::None,
FLinearColor::White
);
}
{
LinePoints[0] = FVector2D( OffsetX + Width, BorderPadding.Y );
LinePoints[1] = FVector2D( OffsetX + Width, LineHeight );
// Draw lines
FSlateDrawElement::MakeLines(
OutDrawElements,
RetLayerId++,
AllottedGeometry.ToPaintGeometry(),
LinePoints,
MyClippingRect,
ESlateDrawEffect::None,
FLinearColor::White
);
}
return RetLayerId - 1;
}
