82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __GUI_STREAMGEOMETRYCONTEXT_H__
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#define __GUI_STREAMGEOMETRYCONTEXT_H__
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#include <NsCore/Noesis.h>
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#include <NsCore/Ptr.h>
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#include <NsGui/CoreApi.h>
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#include <NsGui/ArcSegment.h>
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namespace Noesis
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{
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struct Point;
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struct Size;
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class StreamGeometry;
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NS_WARNING_PUSH
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NS_MSVC_WARNING_DISABLE(4251 4275)
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Describes a geometry using drawing commands. This class is used with the StreamGeometry class
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/// to create a lightweight geometry that does not support data binding, animation, or modification.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_CORE_API StreamGeometryContext
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{
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public:
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/// Specifies the starting point for a new figure
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void BeginFigure(const Point& startPoint, bool isClosed) const;
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/// Draws a straight line to the specified Point
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void LineTo(const Point& point) const;
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/// Draws a cubic Bezier curve to the specified point
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void CubicTo(const Point& point1, const Point& point2, const Point& point3) const;
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/// Draws a quadratic Bezier curve to the specified point
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void QuadraticTo(const Point& point1, const Point& point2) const;
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/// Draws a G1 smooth cubic Bezier curve to the specified point
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void SmoothCubicTo(const Point& point1, const Point& point2) const;
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/// Draws a G1 smooth quadratic Bezier curve to the specified point
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void SmoothQuadraticTo(const Point& point) const;
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/// Draws an arc to the specified point
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void ArcTo(const Point& point, const Size& size, float rotationAngleDeg, bool isLargeArc,
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SweepDirection sweepDirection) const;
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/// Closes this context and flushes its content so that it can be rendered. Afterwards the
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/// stream context can not be used anymore. If Close() is not called then the associated
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/// geometry remains unaltered
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void Close() const;
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/// Overrides the isClosed flag for the current figure
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void SetIsClosed(bool isClosed) const;
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private:
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friend class StreamGeometry;
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StreamGeometryContext(StreamGeometry* geometry);
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void CloseFigure() const;
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private:
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mutable Ptr<StreamGeometry> mGeometry;
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mutable Vector<uint32_t, 512> mCommands;
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mutable bool mCurrentFigureClosed;
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};
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NS_WARNING_POP
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}
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#endif
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