Class ColorWheel¶
Defined in File colorwheel.h
Page Contents
Inheritance Relationships¶
Base Type¶
public nanogui::Widget(Class Widget)
Class Documentation¶
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class
ColorWheel: public nanogui::Widget¶ Fancy analog widget to select a color value. This widget was contributed by Dmitriy Morozov.
Public Functions
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ColorWheel(Widget *parent, const Color &color = Color(1.0f, , , ))¶ Adds a ColorWheel to the specified parent.
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parent: The Widget to add this ColorWheel to.color: The initial color of the ColorWheel (default: Red).
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std::function<void(const Color&)>
callback() const¶ The callback to execute when a user changes the ColorWheel value.
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void
setCallback(const std::function<void(const Color&)> &callback)¶ Sets the callback to execute when a user changes the ColorWheel value.
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Color
color() const¶ The current Color this ColorWheel has selected.
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void
setColor(const Color &color)¶ Sets the current Color this ColorWheel has selected.
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virtual Vector2i
preferredSize(NVGcontext *ctx) const¶ The preferred size of this ColorWheel.
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virtual void
draw(NVGcontext *ctx)¶ Draws the ColorWheel.
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virtual bool
mouseButtonEvent(const Vector2i &p, int button, bool down, int modifiers)¶ Handles mouse button click events for the ColorWheel.
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virtual bool
mouseDragEvent(const Vector2i &p, const Vector2i &rel, int button, int modifiers)¶ Handles mouse drag events for the ColorWheel.
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virtual void
save(Serializer &s) const¶ Saves the current state of this ColorWheel to the specified Serializer.
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virtual bool
load(Serializer &s)¶ Sets the state of this ColorWheel using the specified Serializer.
Protected Attributes
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float
mHue¶ The current Hue in the HSV color model.
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float
mWhite¶ The implicit Value component of the HSV color model. See implementation nanogui::ColorWheel::color for its usage. Valid values are in the range
[0, 1].
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float
mBlack¶ The implicit Saturation component of the HSV color model. See implementation nanogui::ColorWheel::color for its usage. Valid values are in the range
[0, 1].
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Region
mDragRegion¶ The current region the mouse is interacting with.
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