116 lines
3.5 KiB
C
116 lines
3.5 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_GRADIENTBRUSH_H__
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#define __GUI_GRADIENTBRUSH_H__
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#include <NsCore/Noesis.h>
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#include <NsGui/Brush.h>
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namespace Noesis
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{
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struct Color;
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class GradientStopCollection;
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struct GradientBrushProxy;
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enum ColorInterpolationMode: int32_t;
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enum BrushMappingMode: int32_t;
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enum GradientSpreadMethod: int32_t;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Defines an abstract class that describes a gradient, composed of gradient stops. Classes that
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/// inherit from GradientBrush describe different ways of interpreting gradient stops.
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///
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/// http://msdn.microsoft.com/en-us/library/system.windows.media.gradientbrush.aspx
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_CORE_API GradientBrush: public Brush
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{
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public:
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GradientBrush();
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GradientBrush(const GradientBrush&) = delete;
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GradientBrush& operator=(const GradientBrush&) = delete;
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virtual ~GradientBrush() = 0;
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/// Gets or sets a ColorInterpolationMode enumeration that specifies how the gradient's colors
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/// are interpolated.
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//@{
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ColorInterpolationMode GetColorInterpolationMode() const;
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void SetColorInterpolationMode(ColorInterpolationMode mode);
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//@}
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/// Gets or sets the brush's gradient stops
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//@{
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GradientStopCollection* GetGradientStops() const;
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void SetGradientStops(GradientStopCollection* stops);
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//@}
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/// Gets or sets a BrushMappingMode enumeration that specifies whether the gradient brush's
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/// positioning coordinates are absolute or relative to the output area.
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//@{
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BrushMappingMode GetMappingMode() const;
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void SetMappingMode(BrushMappingMode mode);
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//@}
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/// Gets or sets the type of spread method that specifies how to draw a gradient that starts or
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/// ends inside the bounds of the object to be painted.
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//@{
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GradientSpreadMethod GetSpreadMethod() const;
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void SetSpreadMethod(GradientSpreadMethod spreadMethod);
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//@}
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/// Hides Freezable methods for convenience
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//@{
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Ptr<GradientBrush> Clone() const;
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Ptr<GradientBrush> CloneCurrentValue() const;
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//@}
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/// From IRenderProxyCreator
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//@{
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void UpdateRenderProxy(RenderTreeUpdater& updater, uint32_t proxyIndex) override;
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//@}
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public:
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/// Dependency properties
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//@{
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static const DependencyProperty* ColorInterpolationModeProperty;
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static const DependencyProperty* GradientStopsProperty;
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static const DependencyProperty* MappingModeProperty;
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static const DependencyProperty* SpreadMethodProperty;
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//@}
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protected:
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/// From DependencyObject
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//@{
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bool OnPropertyChanged(const DependencyPropertyChangedEventArgs& args) override;
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bool OnSubPropertyChanged(const DependencyProperty* dp) override;
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//@}
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/// From Brush
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//@{
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bool IsTransparentOverride() const override;
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//@}
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protected:
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enum UpdateFlags
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{
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UpdateFlags_GradientStops = Brush::UpdateFlags_Sentinel,
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UpdateFlags_MappingMode,
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UpdateFlags_SpreadMethod,
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UpdateFlags_Sentinel
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};
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private:
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NS_DECLARE_REFLECTION(GradientBrush, Brush)
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};
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}
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#endif
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