void UReporterBase::DrawTriangle(UCanvas* Canvas, const FVector2D& Vertex1, const FVector2D& Vertex2, const FVector2D& Vertex3, const FLinearColor& Color)
{
FVector2D DummyTexCoord;
FCanvasTriangleItem TriItem( ToScreenSpace(Vertex1, Canvas), ToScreenSpace(Vertex2, Canvas), ToScreenSpace(Vertex3, Canvas ), GWhiteTexture );
TriItem.SetColor( Color );
Canvas->DrawItem( TriItem );
}
void FCanvasItemTestbed::Draw( class FViewport* Viewport, class FCanvas* Canvas )
{
bTestState = !bTestState;
if( !bShowTestbed )
{
return;
}
// A little ott for a testbed - but I wanted to draw several lines to ensure it worked :)
if( TestLine.bTestSet == false )
{
TestLine.bTestSet = true;
TestLine.LineStart.X = FMath::FRandRange( 0.0f, Viewport->GetSizeXY().X );
TestLine.LineStart.Y = FMath::FRandRange( 0.0f, Viewport->GetSizeXY().Y );
TestLine.LineEnd.X = FMath::FRandRange( 0.0f, Viewport->GetSizeXY().X );
TestLine.LineEnd.Y = FMath::FRandRange( 0.0f, Viewport->GetSizeXY().Y );
TestLine.LineMove.X = FMath::FRandRange( 0.0f, 32.0f );
TestLine.LineMove.Y = FMath::FRandRange( 0.0f, 32.0f );
TestLine.LineMove2.X = FMath::FRandRange( 0.0f, 32.0f );
TestLine.LineMove2.Y = FMath::FRandRange( 0.0f, 32.0f );
}
else
{
TestLine.LineStart += TestLine.LineMove;
TestLine.LineEnd += TestLine.LineMove2;
if( TestLine.LineStart.X < 0 )
{
TestLine.LineMove.X = -TestLine.LineMove.X;
}
if( TestLine.LineStart.Y < 0 )
{
TestLine.LineMove.Y = -TestLine.LineMove.Y;
}
if( TestLine.LineEnd.X < 0 )
{
TestLine.LineMove2.X = -TestLine.LineMove2.X;
}
if( TestLine.LineEnd.Y < 0 )
{
TestLine.LineMove2.Y = -TestLine.LineMove2.Y;
}
if( TestLine.LineStart.X > Viewport->GetSizeXY().X )
{
TestLine.LineMove.X = -TestLine.LineMove.X;
}
if( TestLine.LineStart.Y > Viewport->GetSizeXY().Y )
{
TestLine.LineMove.Y = -TestLine.LineMove.Y;
}
if( TestLine.LineEnd.X > Viewport->GetSizeXY().X )
{
TestLine.LineMove2.X = -TestLine.LineMove2.X;
}
if( TestLine.LineEnd.Y > Viewport->GetSizeXY().Y )
{
TestLine.LineMove2.Y = -TestLine.LineMove2.Y;
}
}
// Text
float CenterX = 0.0f;
float YTest = 16.0f;
FCanvasTextItem TextItem( FVector2D( CenterX, YTest ), LOCTEXT( "stringhere", "String Here" ), GEngine->GetSmallFont(), FLinearColor::Red );
TextItem.Draw( Canvas );
// Shadowed text
TextItem.Position.Y += TextItem.DrawnSize.Y;
TextItem.Scale.X = 2.0f;
TextItem.EnableShadow( FLinearColor::Green, FVector2D( 2.0f, 2.0f ) );
TextItem.Text = LOCTEXT( "Scaled String here", "Scaled String here" );
TextItem.Draw( Canvas );
TextItem.DisableShadow();
TextItem.Position.Y += TextItem.DrawnSize.Y;;
TextItem.Text = LOCTEXT( "CenterdStringhere", "CenterdStringhere" );
TextItem.Scale.X = 1.0f;
TextItem.bCentreX = true;
TextItem.Draw( Canvas );
// Outlined text
TextItem.Position.Y += TextItem.DrawnSize.Y;
TextItem.Text = LOCTEXT( "ScaledCentredStringhere", "Scaled Centred String here" );
TextItem.OutlineColor = FLinearColor::Black;
TextItem.bOutlined = true;
TextItem.Scale = FVector2D( 2.0f, 2.0f );
TextItem.SetColor( FLinearColor::Green );
TextItem.Text = LOCTEXT( "ScaledCentredOutlinedStringhere", "Scaled Centred Outlined String here" );
TextItem.Draw( Canvas );
// a line
FCanvasLineItem LineItem( TestLine.LineStart, TestLine.LineEnd );
LineItem.Draw( Canvas );
// some boxes
FCanvasBoxItem BoxItem( FVector2D( 88.0f, 88.0f ), FVector2D( 188.0f, 188.0f ) );
BoxItem.SetColor( FLinearColor::Yellow );
BoxItem.Draw( Canvas );
BoxItem.SetColor( FLinearColor::Red );
BoxItem.Position = FVector2D( 256.0f, 256.0f );
BoxItem.Draw( Canvas );
BoxItem.SetColor( FLinearColor::Blue );
BoxItem.Position = FVector2D( 6.0f, 6.0f );
BoxItem.Size = FVector2D( 48.0f, 96.0f );
BoxItem.Draw( Canvas );
// Triangle
FCanvasTriangleItem TriItem( FVector2D( 48.0f, 48.0f ), FVector2D( 148.0f, 48.0f ), FVector2D( 48.0f, 148.0f ), GWhiteTexture );
TriItem.Draw( Canvas );
// Triangle list
TArray< FCanvasUVTri > TriangleList;
FCanvasUVTri SingleTri;
SingleTri.V0_Pos = FVector2D( 128.0f, 128.0f );
SingleTri.V1_Pos = FVector2D( 248.0f, 108.0f );
SingleTri.V2_Pos = FVector2D( 100.0f, 348.0f );
SingleTri.V0_UV = FVector2D::ZeroVector;
SingleTri.V1_UV = FVector2D::ZeroVector;
SingleTri.V2_UV = FVector2D::ZeroVector;
TriangleList.Add( SingleTri );
SingleTri.V0_Pos = FVector2D( 348.0f, 128.0f );
SingleTri.V1_Pos = FVector2D( 448.0f, 148.0f );
SingleTri.V2_Pos = FVector2D( 438.0f, 308.0f );
TriangleList.Add( SingleTri );
FCanvasTriangleItem TriItemList( TriangleList, GWhiteTexture );
TriItemList.SetColor( FLinearColor::Red );
TriItemList.Draw( Canvas );
// FCanvasNGonItem NGon( FVector2D( 256.0f, 256.0f ), FVector2D( 256.0f, 256.0f ), 6, GWhiteTexture, FLinearColor::White );
// NGon.Draw( Canvas );
//
// FCanvasNGonItem NGon2( FVector2D( 488, 666.0f ), FVector2D( 256.0f, 256.0f ), 16, GWhiteTexture, FLinearColor::Green );
// NGon2.Draw( Canvas );
// Texture
UTexture* SelectedTexture = GEditor->GetSelectedObjects()->GetTop<UTexture>();
if( SelectedTexture )
{
// Plain tex
FCanvasTileItem TileItem( FVector2D( 128.0f,128.0f ), SelectedTexture->Resource, FLinearColor::White );
TileItem.Draw( Canvas );
TileItem.Size = FVector2D( 32.0f,32.0f );
TileItem.Position = FVector2D( 16.0f,16.0f );
TileItem.Draw( Canvas );
// UV
TileItem.Size = FVector2D( 64.0f,64.0f );
TileItem.UV0 = FVector2D( 0.0f, 0.0f );
TileItem.UV1 = FVector2D( 1.0f, 1.0f );
TileItem.Position = FVector2D( 256.0f,16.0f );
TileItem.Draw( Canvas );
// UV
TileItem.Size = FVector2D( 64.0f,64.0f );
TileItem.UV0 = FVector2D( 0.0f, 0.0f );
TileItem.UV1 = FVector2D( 1.0f, -1.0f );
TileItem.Position = FVector2D( 356.0f,16.0f );
TileItem.Draw( Canvas );
// UV
TileItem.Size = FVector2D( 64.0f,64.0f );
TileItem.UV0 = FVector2D( 0.0f, 0.0f );
TileItem.UV1 = FVector2D( -1.0f, 1.0f );
TileItem.Position = FVector2D( 456.0f,16.0f );
TileItem.Draw( Canvas );
// UV
TileItem.Size = FVector2D( 64.0f,64.0f );
TileItem.UV0 = FVector2D( 0.0f, 0.0f );
TileItem.UV1 = FVector2D( -1.0f, -1.0f );
TileItem.Position = FVector2D( 556.0f,16.0f );
TileItem.Draw( Canvas );
// Rotate top/left pivot
TileItem.Size = FVector2D( 96.0f,96.0f );
TileItem.UV0 = FVector2D( 0.0f, 0.0f );
TileItem.UV1 = FVector2D( 1.0f, 1.0f );
TileItem.Position = FVector2D( 400.0f,264.0f );
TileItem.Rotation.Yaw = TestLine.Testangle;
TileItem.Draw( Canvas );
// Rotate center pivot
TileItem.Size = FVector2D( 128.0f, 128.0f );
TileItem.UV0 = FVector2D( 0.0f, 0.0f );
TileItem.UV1 = FVector2D( 1.0f, 1.0f );
TileItem.Position = FVector2D( 600.0f,264.0f );
TileItem.Rotation.Yaw = 360.0f - TestLine.Testangle;
TileItem.PivotPoint = FVector2D( 0.5f, 0.5f );
TileItem.Draw( Canvas );
TestLine.Testangle = FMath::Fmod( TestLine.Testangle + 2.0f, 360.0f );
// textured tri
FCanvasTriangleItem TriItemTex( FVector2D( 48.0f, 48.0f ), FVector2D( 148.0f, 48.0f ), FVector2D( 48.0f, 148.0f ), FVector2D( 0.0f, 0.0f ), FVector2D( 1.0f, 0.0f ), FVector2D( 0.0f, 1.0f ), SelectedTexture->Resource );
TriItem.Texture = GWhiteTexture;
TriItemTex.Draw( Canvas );
// moving tri (only 1 point moves !)
TriItemTex.Position = TestLine.LineStart;
TriItemTex.Draw( Canvas );
}
}