tachyon::ButtonGroupSubsystem Class Reference

Button/toggle groups: every item takes the group's item style (its :first-child and :last-child rules shape the ends), and a single-item group reverts to "solo", a plain button, in EndGroup. More...

#include <gui_controls/subsystems/gui_button_group_subsystem.h>

Classes
struct	ItemState
	One open group: its styles and the items registered so far. More...

Public Member Functions
	ButtonGroupSubsystem (FramePipeline &frame, ElementStorage &elementStorage, StyleManager &styleManager)
void	BeginButtonGroup (ItemState state)
	Opens a button group at the current nesting depth.
void	EndButtonGroup ()
	Closes the innermost button group, restyling a single item as solo.
void	BeginToggleGroup (ItemState state)
	Opens a toggle group at the current nesting depth.
void	EndToggleGroup ()
	Closes the innermost toggle group, restyling a single item as solo.
ItemState *	GetActiveButton ()
	The innermost button group when it was opened at the current nesting depth, else nullptr.
ItemState *	GetActiveToggle ()
	The innermost toggle group when it was opened at the current nesting depth, else nullptr.
tachyon::StyleRef	NextItemStyleRef (ItemState &state)
	Style for the next item.
bool	IsBalanced () const
	True iff every Begin*Group was matched by End*Group.

Detailed Description

Button/toggle groups: every item takes the group's item style (its :first-child and :last-child rules shape the ends), and a single-item group reverts to "solo", a plain button, in EndGroup.

Owns the group stacks; GUIApplication does the element registration.

Constructor & Destructor Documentation

ButtonGroupSubsystem()

tachyon::ButtonGroupSubsystem::ButtonGroupSubsystem	(	FramePipeline &	frame,
		ElementStorage &	elementStorage,
		StyleManager &	styleManager )

Member Function Documentation

BeginButtonGroup()

void tachyon::ButtonGroupSubsystem::BeginButtonGroup

(

ItemState

state

)

Opens a button group at the current nesting depth.

EndButtonGroup()

void tachyon::ButtonGroupSubsystem::EndButtonGroup

(

)

Closes the innermost button group, restyling a single item as solo.

BeginToggleGroup()

void tachyon::ButtonGroupSubsystem::BeginToggleGroup

(

ItemState

state

)

Opens a toggle group at the current nesting depth.

EndToggleGroup()

void tachyon::ButtonGroupSubsystem::EndToggleGroup

(

)

Closes the innermost toggle group, restyling a single item as solo.

GetActiveButton()

ItemState * tachyon::ButtonGroupSubsystem::GetActiveButton

(

)

The innermost button group when it was opened at the current nesting depth, else nullptr.

GetActiveToggle()

ItemState * tachyon::ButtonGroupSubsystem::GetActiveToggle

(

)

The innermost toggle group when it was opened at the current nesting depth, else nullptr.

NextItemStyleRef()

tachyon::StyleRef tachyon::ButtonGroupSubsystem::NextItemStyleRef

(

ItemState &

state

)

Style for the next item.

The caller then stores the first item's registered ref in state.firstRef.

IsBalanced()

bool tachyon::ButtonGroupSubsystem::IsBalanced ( ) const

inline

True iff every Begin*Group was matched by End*Group.

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

• gui_controls/subsystems/gui_button_group_subsystem.h