Vec2f BorderLayout::layoutSize(const MFUnrecChildComponentPtr* Components, const Component* ParentComponent, SizeType TheSizeType) const
{
Vec2f Result(0.0,0.0);
Vec2f WestSize(0.0,0.0),
EastSize(0.0,0.0),
NorthSize(0.0,0.0),
SouthSize(0.0,0.0),
CenterSize(0.0,0.0);
for(UInt32 i(0) ; i<Components->size() ; ++i)
{
switch(dynamic_cast<BorderLayoutConstraints*>((*Components)[i]->getConstraints())->getRegion())
{
case BorderLayoutConstraints::BORDER_WEST:
WestSize = getComponentSize((*Components)[i],TheSizeType);
break;
case BorderLayoutConstraints::BORDER_EAST:
EastSize = getComponentSize((*Components)[i],TheSizeType);
break;
case BorderLayoutConstraints::BORDER_NORTH:
NorthSize = getComponentSize((*Components)[i],TheSizeType);
break;
case BorderLayoutConstraints::BORDER_SOUTH:
SouthSize = getComponentSize((*Components)[i],TheSizeType);
break;
case BorderLayoutConstraints::BORDER_CENTER:
CenterSize = getComponentSize((*Components)[i],TheSizeType);
break;
}
}
switch(TheSizeType)
{
case MAX_SIZE:
Result[0] = osgMin(osgMin(EastSize.x() + CenterSize.x() + WestSize.x(),NorthSize.x()),SouthSize.x());
Result[1] = osgMin(osgMin(EastSize.y(), CenterSize.y()), WestSize.y()) + NorthSize.y() + SouthSize.y();
break;
case MIN_SIZE:
case PREFERRED_SIZE:
case REQUESTED_SIZE:
default:
Result[0] = osgMax(osgMax(EastSize.x() + CenterSize.x() + WestSize.x(),NorthSize.x()),SouthSize.x());
Result[1] = osgMax(osgMax(EastSize.y(), CenterSize.y()), WestSize.y()) + NorthSize.y() + SouthSize.y();
break;
}
return Result;
}
void USlateBrushThumbnailRenderer::Draw(UObject* Object, int32 X, int32 Y, uint32 Width, uint32 Height, FRenderTarget* RenderTarget, FCanvas* Canvas)
{
USlateBrushAsset* SlateBrushAsset = Cast<USlateBrushAsset>(Object);
if (SlateBrushAsset)
{
FSlateBrush Brush = SlateBrushAsset->Brush;
UTexture2D* Texture = Cast<UTexture2D>( Brush.GetResourceObject() );
// Draw the background checkboard pattern
const int32 CheckerDensity = 8;
auto* Checker = UThumbnailManager::Get().CheckerboardTexture;
Canvas->DrawTile(
0.0f, 0.0f, Width, Height, // Dimensions
0.0f, 0.0f, CheckerDensity, CheckerDensity, // UVs
FLinearColor::White, Checker->Resource); // Tint & Texture
if (Texture)
{
switch(Brush.DrawAs)
{
case ESlateBrushDrawType::Image:
{
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, FVector2D( Width,Height ), Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
break;
case ESlateBrushDrawType::Border:
{
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, FVector2D( Width,Height ), Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
break;
case ESlateBrushDrawType::Box:
{
float NaturalWidth = Texture->GetSurfaceWidth();
float NaturalHeight = Texture->GetSurfaceHeight();
float TopPx = FMath::Clamp<float>(NaturalHeight * Brush.Margin.Top, 0, Height);
float BottomPx = FMath::Clamp<float>(NaturalHeight * Brush.Margin.Bottom, 0, Height);
float VerticalCenterPx = FMath::Clamp<float>(Height - TopPx - BottomPx, 0, Height);
float LeftPx = FMath::Clamp<float>(NaturalWidth * Brush.Margin.Left, 0, Width);
float RightPx = FMath::Clamp<float>(NaturalWidth * Brush.Margin.Right, 0, Width);
float HorizontalCenterPx = FMath::Clamp<float>(Width - LeftPx - RightPx, 0, Width);
// Top-Left
FVector2D TopLeftSize( LeftPx, TopPx );
{
FVector2D UV0( 0, 0 );
FVector2D UV1( Brush.Margin.Left, Brush.Margin.Top );
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, TopLeftSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Bottom-Left
FVector2D BottomLeftSize( LeftPx, BottomPx );
{
FVector2D UV0( 0, 1 - Brush.Margin.Bottom );
FVector2D UV1( Brush.Margin.Left, 1 );
FCanvasTileItem CanvasTile( FVector2D( X, Y + Height - BottomPx ), Texture->Resource, BottomLeftSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Top-Right
FVector2D TopRightSize( RightPx, TopPx );
{
FVector2D UV0( 1 - Brush.Margin.Right, 0 );
FVector2D UV1( 1, Brush.Margin.Top );
FCanvasTileItem CanvasTile( FVector2D( X + Width - RightPx, Y ), Texture->Resource, TopRightSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Bottom-Right
FVector2D BottomRightSize( RightPx, BottomPx );
{
FVector2D UV0( 1 - Brush.Margin.Right, 1 - Brush.Margin.Bottom );
FVector2D UV1( 1, 1 );
FCanvasTileItem CanvasTile( FVector2D( X + Width - RightPx, Y + Height - BottomPx ), Texture->Resource, BottomRightSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
//-----------------------------------------------------------------------
// Center-Vertical-Left
FVector2D CenterVerticalLeftSize( LeftPx, VerticalCenterPx );
{
FVector2D UV0( 0, Brush.Margin.Top );
FVector2D UV1( Brush.Margin.Left, 1 - Brush.Margin.Bottom );
FCanvasTileItem CanvasTile( FVector2D( X, Y + TopPx), Texture->Resource, CenterVerticalLeftSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Center-Vertical-Right
FVector2D CenterVerticalRightSize( RightPx, VerticalCenterPx );
{
FVector2D UV0( 1 - Brush.Margin.Right, Brush.Margin.Top );
FVector2D UV1( 1, 1 - Brush.Margin.Bottom );
FCanvasTileItem CanvasTile( FVector2D( X + Width - RightPx, Y + TopPx), Texture->Resource, CenterVerticalRightSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
//-----------------------------------------------------------------------
// Center-Horizontal-Top
FVector2D CenterHorizontalTopSize( HorizontalCenterPx, TopPx );
{
FVector2D UV0( Brush.Margin.Left, 0 );
FVector2D UV1( 1 - Brush.Margin.Right, Brush.Margin.Top );
FCanvasTileItem CanvasTile( FVector2D( X + LeftPx, Y), Texture->Resource, CenterHorizontalTopSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Center-Horizontal-Bottom
FVector2D CenterHorizontalBottomSize( HorizontalCenterPx, BottomPx );
{
FVector2D UV0( Brush.Margin.Left, 1 - Brush.Margin.Bottom );
FVector2D UV1( 1 - Brush.Margin.Right, 1 );
FCanvasTileItem CanvasTile( FVector2D( X + LeftPx, Y + Height - BottomPx ), Texture->Resource, CenterHorizontalBottomSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
//-----------------------------------------------------------------------
// Center
FVector2D CenterSize( HorizontalCenterPx, VerticalCenterPx );
{
FVector2D UV0( Brush.Margin.Left, Brush.Margin.Top );
FVector2D UV1( 1 - Brush.Margin.Right, 1 - Brush.Margin.Bottom );
FCanvasTileItem CanvasTile( FVector2D( X + LeftPx, Y + TopPx), Texture->Resource, CenterSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
}
break;
case ESlateBrushDrawType::NoDrawType:
{
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, FVector2D( Width,Height ), Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
break;
default:
check(false);
}
}
}
}
