File size: 2,870 Bytes
7fd553e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | // Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Styling/CoreStyle.h"
#include "Widgets/Accessibility/SlateWidgetAccessibleTypes.h"
#include "Widgets/DeclarativeSyntaxSupport.h"
#include "Widgets/SLeafWidget.h"
#include "SCircumferenceMarkerWidget.generated.h"
class FPaintArgs;
class FSlateRect;
class FSlateWindowElementList;
class FWidgetStyle;
struct FGeometry;
struct FSlateBrush;
USTRUCT(BlueprintType)
struct FCircumferenceMarkerEntry
{
GENERATED_BODY()
// The angle to place this marker around the circle (in degrees)
UPROPERTY(EditAnywhere, BlueprintReadWrite, meta=(ForceUnits=deg))
float PositionAngle = 0.0f;
// The angle to rotate the marker image (in degrees)
UPROPERTY(EditAnywhere, BlueprintReadWrite, meta=(ForceUnits=deg))
float ImageRotationAngle = 0.0f;
};
class SCircumferenceMarkerWidget : public SLeafWidget
{
SLATE_BEGIN_ARGS(SCircumferenceMarkerWidget)
: _MarkerBrush(FCoreStyle::Get().GetBrush("Throbber.CircleChunk"))
, _Radius(48.0f)
{
}
/** What each marker on the circumference looks like */
SLATE_ARGUMENT(const FSlateBrush*, MarkerBrush)
/** At which angles should a marker be drawn */
SLATE_ARGUMENT(TArray<FCircumferenceMarkerEntry>, MarkerList)
/** The radius of the circle */
SLATE_ATTRIBUTE(float, Radius)
/** The color and opacity of the marker */
SLATE_ATTRIBUTE(FSlateColor, ColorAndOpacity)
SLATE_END_ARGS()
public:
void Construct(const FArguments& InArgs);
SCircumferenceMarkerWidget();
//~SWidget interface
virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
virtual FVector2D ComputeDesiredSize(float) const override;
virtual bool ComputeVolatility() const override { return true; }
//~End of SWidget interface
void SetRadius(float NewRadius);
void SetMarkerList(TArray<FCircumferenceMarkerEntry>& NewMarkerList);
private:
FSlateRenderTransform GetMarkerRenderTransform(const FCircumferenceMarkerEntry& Marker, const float BaseRadius, const float HUDScale) const;
private:
/** What each marker on the circumference looks like */
const FSlateBrush* MarkerBrush;
/** Angles around the reticle center to place ReticleCornerImage icons */
TArray<FCircumferenceMarkerEntry> MarkerList;
/** The radius of the circle */
TAttribute<float> Radius;
/** Color and opacity of the markers */
TAttribute<FSlateColor> ColorAndOpacity;
bool bColorAndOpacitySet;
/** Whether reticle corner images are placed outside the spread radius */
//@TODO: Make this a 0-1 float alignment instead (e.g., inside/on/outside the radius)?
uint8 bReticleCornerOutsideSpreadRadius : 1;
};
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