spk::ColorPicker Class Reference

Widget that allows editing and previewing a color. More...

#include <spk_color_picker.hpp>

Inheritance diagram for spk::ColorPicker:

Collaboration diagram for spk::ColorPicker:

Public Member Functions
	ColorPicker (const std::wstring &p_name, spk::Widget *p_parent)
	Builds a color picker widget.
void	setColor (const spk::Color &p_color)
	Sets the current color.
const spk::Color &	color () const
	Returns the current color.
void	setColorOutputMinimalSize (const spk::Vector2UInt &p_minimalSize)
	Sets the minimal size of the color preview output.
const spk::Vector2UInt &	colorOutputMinimalSize () const
	Returns the minimal size of the color preview output.
void	setComponentSliderMinimalWidth (uint32_t p_width)
	Sets the minimal width for component sliders.
uint32_t	componentSliderMinimalWidth () const
	Returns the minimal width for component sliders.
Public Member Functions inherited from spk::Widget
void	takeFocus (FocusType p_focusType)
	Grants this widget ownership of the requested focus type.
void	releaseFocus (FocusType p_focusType)
	Releases a previously acquired focus type.
bool	hasFocus (FocusType p_focusType) const
	Checks if this widget currently owns a focus type.
void	takeAllFocus ()
	Acquires both keyboard and mouse focus.
void	releaseAllFocus ()
	Releases both keyboard and mouse focus types.
	Widget (const std::wstring &p_name, Widget *p_parent)
	Builds a widget optionally attached to a parent.
void	addChild (Widget *p_child) override
	Adds a child widget and sorts the hierarchy by layer.
const float &	layer () const
	Current rendering layer of the widget.
void	setLayer (const float &p_newLayer)
	Updates the widget layer and propagates relative offsets to children.
const std::wstring &	name () const
	Retrieves the widget name.
void	setName (const std::wstring &p_name)
	Sets the widget name.
void	setGeometry (const spk::Extend2D &p_geometry) override
	Requests a specific viewport and scissor region for the widget.
const spk::Extend2D &	geometry () const
	Returns the current widget geometry.
const spk::OpenGL::ViewRegion &	viewRegion () const
	Accesses the computed view region.
const spk::OpenGL::FrameBufferObject &	frameBufferObject () const
	Returns the frame buffer object used for widget rendering.
const spk::OpenGL::FrameBufferObject &	fbo () const
	Alias for frameBufferObject().
void	requireGeometryChange ()
	Marks the widget view region as needing recomputation.
Public Member Functions inherited from spk::InherenceObject< Widget >
virtual void	removeChild (Widget *p_child)
	Removes a child from this node.
Widget *	parent () const
	Returns the parent pointer.
virtual std::vector< Widget * > &	children ()
	Returns the children vector.
void	clearChildren ()
	Clears the children list and resets each child's parent pointer.
Public Member Functions inherited from spk::ActivableObject
	ActivableObject ()
	Builds a deactivated object.
	ActivableObject (ActivationStatus p_initial)
	Builds with a custom initial activation state.
void	activate ()
	Sets the state to Activated.
void	deactivate ()
	Sets the state to Deactivated.
void	toggle ()
	Toggles between activated and deactivated states.
bool	isActive () const
	Checks whether the object is currently activated.
Contract	addActivationCallback (const Job &p_callback)
	Registers a callback executed when the object activates.
Contract	addDeactivationCallback (const Job &p_callback)
	Registers a callback executed when the object deactivates.
Public Member Functions inherited from spk::StatefulObject< ActivationStatus >
	StatefulObject (const ActivationStatus &p_initialState)
	Builds with an initial state.
StatefulObject &	operator= (const StatefulObject &p_other)=delete
void	setState (const ActivationStatus &p_newState)
	Sets a new state and triggers callbacks registered for it.
ActivationStatus	state () const
	Returns the current state.
Contract	addCallback (const ActivationStatus &p_state, const Job &p_callback)
	Subscribes a callback for a specific state.
Public Member Functions inherited from spk::ResizableElement
SizeHint &	sizeHint ()
	Returns mutable size hint data.
const SizeHint &	sizeHint () const
	Returns const size hint data.

Protected Member Functions
void	_onGeometryChange () override
	Updates layout and geometry when the widget size changes.
void	_onUpdateEvent (spk::UpdateEvent &p_event) override
	Handles periodic updates for syncing UI state.
Protected Member Functions inherited from spk::Widget
virtual void	_onPaintEvent (spk::PaintEvent &p_event)
	Paint event hook for derived widgets.
virtual void	_onKeyPressEvent (spk::KeyPressEvent &p_event)
	Keyboard press handler for derived widgets.
virtual void	_onKeyReleaseEvent (spk::KeyReleaseEvent &p_event)
	Keyboard release handler for derived widgets.
virtual void	_onGlyphEvent (spk::GlyphEvent &p_event)
	Text glyph input handler for derived widgets.
virtual void	_onMousePressEvent (spk::MousePressEvent &p_event)
	Mouse button press handler for derived widgets.
virtual void	_onMouseReleaseEvent (spk::MouseReleaseEvent &p_event)
	Mouse button release handler for derived widgets.
virtual void	_onMouseDoubleClickEvent (spk::MouseDoubleClickEvent &p_event)
	Mouse double click handler for derived widgets.
virtual void	_onMouseMotionEvent (spk::MouseMotionEvent &p_event)
	Mouse motion handler for derived widgets.
virtual void	_onMouseWheelEvent (spk::MouseWheelEvent &p_event)
	Mouse wheel handler for derived widgets.
virtual void	_onEnterResizeModeEvent (spk::EnterResizeModeEvent &p_event)
	Callback for entering resize mode.
virtual void	_onResizeEvent (spk::ResizeEvent &p_event)
	Resize handling hook.
virtual void	_onExitResizeModeEvent (spk::ExitResizeModeEvent &p_event)
	Callback invoked when leaving resize mode.
virtual void	_onQuitEvent (spk::QuitEvent &p_event)
	Quit event handler hook.
virtual void	_onMoveEvent (spk::MoveEvent &p_event)
	Window move handler hook.
virtual void	_onFullScreenModeEvent (spk::FullScreenModeEvent &p_event)
	Full screen toggle handler hook.
virtual void	_onMaximizedModeEvent (spk::MaximizedModeEvent &p_event)
	Maximized mode change handler.
virtual void	_onFocusEvent (spk::FocusEvent &p_event)
	Focus change handler hook.

Additional Inherited Members
Public Types inherited from spk::Widget
enum class	FocusType { Keyboard = 0 , Mouse = 1 }
	Types of focus a widget can own.
Public Types inherited from spk::ActivableObject
using	Contract = StatefulObject<ActivationStatus>::Contract
	Subscription handle controlling callback lifetime.
using	Job = StatefulObject<ActivationStatus>::Job
	Callback signature executed on activation state changes.
Public Types inherited from spk::StatefulObject< ActivationStatus >
using	Contract
	Handle allowing subscribers to manage callback lifetimes.
using	Job
	Callable invoked when the object transitions to a state.
Static Public Member Functions inherited from spk::Widget
static Widget *	focusedWidget (FocusType p_focusType)
	Retrieves the widget currently owning a focus type.
Static Public Attributes inherited from spk::Widget
static const size_t	NbFocusType = 2
	Number of focus slots tracked at runtime.

Detailed Description

Widget that allows editing and previewing a color.

See also

Color

spk::ColorPicker picker(L"Color", parent);
picker.setColor(spk::Color::White);

Constructor & Destructor Documentation

ColorPicker()

spk::ColorPicker::ColorPicker	(	const std::wstring &	p_name,
		spk::Widget *	p_parent )

Builds a color picker widget.

Parameters

p_name	Widget name.
p_parent	Parent widget.

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Member Function Documentation

_onGeometryChange()

void spk::ColorPicker::_onGeometryChange ( )

overrideprotectedvirtual

Updates layout and geometry when the widget size changes.

Reimplemented from spk::Widget.

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_onUpdateEvent()

void spk::ColorPicker::_onUpdateEvent ( spk::UpdateEvent & p_event )

overrideprotectedvirtual

Handles periodic updates for syncing UI state.

Parameters

p_event

Update event payload.

Reimplemented from spk::Widget.

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color()

const spk::Color & spk::ColorPicker::color

(

)

const

Returns the current color.

Returns

Color value.

colorOutputMinimalSize()

const spk::Vector2UInt & spk::ColorPicker::colorOutputMinimalSize

(

)

const

Returns the minimal size of the color preview output.

Returns

Minimum preview size.

componentSliderMinimalWidth()

uint32_t spk::ColorPicker::componentSliderMinimalWidth

(

)

const

Returns the minimal width for component sliders.

Returns

Minimum slider width.

setColor()

void spk::ColorPicker::setColor

(

const spk::Color &

p_color

)

Sets the current color.

Parameters

p_color

Color value.

setColorOutputMinimalSize()

void spk::ColorPicker::setColorOutputMinimalSize

(

const spk::Vector2UInt &

p_minimalSize

)

Sets the minimal size of the color preview output.

Parameters

p_minimalSize

Minimum preview size.

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setComponentSliderMinimalWidth()

void spk::ColorPicker::setComponentSliderMinimalWidth

(

uint32_t

p_width

)

Sets the minimal width for component sliders.

Parameters

p_width

Minimum slider width.

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The documentation for this class was generated from the following files:

• includes/structure/widget/spk_color_picker.hpp
• srcs/structure/widget/spk_color_picker.cpp