InputButton Class Reference

Momentary push-button input element that is active only while pressed. More...

#include <InputButton.h>

Inheritance diagram for InputButton:

Public Member Functions
QList< std::pair< int, QString > >	appearanceStates () const override
	InputButton (QGraphicsItem *parent=nullptr)
	Constructs the element with optional parent.
bool	isOn (const int port=0) const override
	Returns true if output port port is driven logic-high.
void	load (QDataStream &stream, SerializationContext &context) override
void	save (QDataStream &stream, SerializationOptions options) const override
void	setOff () override
	Drives all output ports logic-low (releases the button).
void	setOn () override
	Presses the button (logic-1).
virtual void	setOn (const bool value, const int port=0)
	Sets output port to value.
Public Member Functions inherited from GraphicElementInput
	GraphicElementInput (ElementType type, QGraphicsItem *parent=nullptr)
bool	isLocked () const
	Returns true if the element is locked against user interaction.
virtual int	outputSize () const
	Returns the number of output ports (default 1 for most input elements).
virtual int	outputValue () const
	Returns the integer encoding of the current output value.
void	setAppearance (const bool defaultAppearance, const QString &fileName) override
void	setLocked (const bool locked)
	Locks or unlocks user interaction on this element.
virtual void	setWaveformValue (const bool value, const int port=0)
	Applies a waveform-sweep cell value to output port.
void	updateOutputs ()
	Propagates the current on/off state of each output to the backing logic element.
	~GraphicElementInput () override=default
Public Member Functions inherited from GraphicElement
QVector< Port * >	allPorts () const
	Returns a combined list of all input and output ports as Port pointers.
QPixmap	appearancePreviewPixmap (const int index, const QSize &size) const
	Returns a small preview pixmap for the appearance at index (see appearanceStates()).
virtual QString	audio () const
	Returns the name of the audio file currently associated with this element.
void	beginDeferredCommit ()
virtual const QString &	blobName () const
	Returns the blob name for embedded ICs, empty string otherwise. Base returns empty.
QRectF	boundingRect () const override
	Returns the bounding rectangle of this element in local coordinates.
bool	canChangeAppearance () const
	Returns true if the user is allowed to choose a custom appearance for this element.
void	clearOutputChanged ()
	Clears the simulation output-changed flag.
virtual QString	color () const
	Returns the name of the color currently applied to this element.
void	commitDeferredOutputs ()
void	connectPredecessor (const int inputIndex, GraphicElement *source, const int outputPort)
	Connects simulation input inputIndex to output outputPort of source element.
virtual double	delay () const
	Returns the clock phase delay in seconds (overridden by Clock; returns 0 for other elements).
QList< PropertyDescriptor >	editableProperties () const
	Returns the list of editable properties this element exposes in the ElementEditor.
ElementGroup	elementGroup () const
	Returns the group this element belongs to.
ElementType	elementType () const
	Returns the type identifier for this element.
virtual QStringList	externalFiles () const
virtual double	frequency () const
	Returns the clock frequency in Hz (overridden by Clock; returns 0 for other elements).
virtual QString	genericProperties ()
	Returns a string encoding element-specific properties for serialization or display.
	GraphicElement (ElementType type, QGraphicsItem *parent=nullptr)
	Constructs a graphic element of the given type, fetching all properties from the metadata registry.
bool	hasAudio () const
	Returns true if this element type supports audio output.
bool	hasAudioBox () const
	Returns true if this element type shows an audio selection box.
bool	hasColors () const
	Returns true if this element type supports color selection.
bool	hasDelay () const
	Returns true if this element type exposes a configurable clock phase delay.
bool	hasFrequency () const
	Returns true if this element type exposes a configurable clock frequency.
bool	hasLabel () const
	Returns true if this element type supports a user-editable label.
bool	hasTrigger () const
	Returns true if this element type supports a keyboard trigger.
bool	hasTruthTable () const
	Returns true if this element type has an editable truth table.
bool	hasVolume () const
	Returns true if this element type supports volume control.
virtual bool	hasWirelessMode () const
	Returns true if this element supports a configurable wireless routing mode.
void	initSimulationVectors (const int inputCount, const int outputCount)
	Allocates simulation I/O vectors with inputs inputs and outputs outputs.
void	inlineEditRequested (GraphicElement *element)
InputPort *	inputPort (const int index=0) const
	Returns the input port at index (default 0).
const QVector< InputPort * > &	inputs () const
	Returns a const reference to the vector of all input ports.
int	inputSize () const
	Returns the current number of input ports.
virtual bool	isEmbedded () const
	Returns true if this element is an embedded IC (not file-backed). Base returns false.
bool	isFlippedX () const
	Returns true if this element is mirrored along the X axis (horizontal flip).
bool	isFlippedY () const
	Returns true if this element is mirrored along the Y axis (vertical flip).
bool	isValid ()
	Returns true if the element is fully initialised and connected correctly.
QString	label () const
	Returns the user-visible label text for this element.
QRectF	labelSceneBoundingRect () const
virtual void	loadFromDrop (const QString &fileName, const QString &contextDir)
	Polymorphic interface for drag-drop initialization (replaces elementType() == IC checks).
int	maxInputSize () const
	Returns the maximum allowed number of input ports.
int	maxOutputSize () const
	Returns the maximum allowed number of output ports.
int	minInputSize () const
	Returns the minimum allowed number of input ports.
int	minOutputSize () const
	Returns the minimum allowed number of output ports.
QString	nextColor () const
	Returns the name of the next color in the element's color list.
bool	outputChanged () const
OutputPort *	outputPort (const int index=0) const
	Returns the output port at index (default 0).
const QVector< OutputPort * > &	outputs () const
	Returns a const reference to the vector of all output ports.
int	outputSize () const
	Returns the current number of output ports.
Status	outputValue (const int index=0) const
	Returns the four-state signal value on simulation output port index.
void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override
	Paints the element onto the scene.
QPointF	pixmapCenter () const
	Returns the centre point of the element's pixmap in local coordinates.
QString	previousColor () const
	Returns the name of the previous color in the element's color list.
void	reapplyAppearanceOrientation ()
virtual void	refresh ()
	Forces a visual refresh of the element's pixmap and ports.
virtual void	resetSimState ()
	Resets all simulation-visible state to power-on defaults.
virtual void	resettleCombinational ()
	Re-evaluates combinational outputs after the synchronous sequential commit, propagating just-committed flip-flop/latch state to downstream logic and IC output boundaries within the same tick.
void	retranslate ()
	Updates the translated display name, tooltip, and port object name after a locale change.
void	rotatePorts ()
bool	rotatesGraphic () const
qreal	rotation () const
	Returns the current rotation angle of this element in degrees.
void	setAppearanceAt (const int index, const QString &fileName)
	Sets a custom appearance at a specific index in the appearance list.
virtual void	setAudio (const QString &audio)
	Sets the audio file associated with this element to audio.
virtual void	setColor (const QString &color)
	Sets the element color to color and refreshes the pixmap.
virtual void	setDelay (const double delay)
	Sets the clock phase delay to delay (overridden by clock elements).
void	setFlippedX (bool flipped)
	Sets the horizontal mirror state and updates the item transform.
void	setFlippedY (bool flipped)
	Sets the vertical mirror state and updates the item transform.
virtual void	setFrequency (const double freq)
	Sets the clock frequency to freq (overridden by clock elements).
void	setInputs (const QVector< InputPort * > &inputs)
	Replaces the input port vector with inputs.
virtual void	setInputSize (const int size)
	Adjusts the number of input ports to size, adding or removing ports as needed.
void	setLabel (const QString &label)
	Sets the label text to label and refreshes the display.
virtual void	setOutputSize (const int size)
	Adjusts the number of output ports to size, adding or removing ports as needed.
void	setOutputValue (const bool value)
	Convenience overload — converts bool to Active/Inactive for port 0.
void	setOutputValue (const int index, const bool value)
	Convenience overload — converts bool to Active/Inactive for port index.
void	setOutputValue (const int index, const Status value)
	Sets simulation output port index to value.
void	setOutputValue (const Status value)
	Sets simulation output port 0 to value.
void	setPixmap (const int index)
	Loads and applies the appearance at position index in the appearance list.
void	setPixmap (const QString &pixmapPath)
	Loads and applies the pixmap located at pixmapPath.
void	setPortName (const QString &name)
	Sets the object name of all ports to name for identification.
void	setRotation (const qreal angle)
	Rotates the element to angle degrees and updates port positions.
void	setTrigger (const QKeySequence &trigger)
	Sets the keyboard shortcut to trigger and updates the label.
virtual void	setVolume (float vol)
	Sets the audio playback volume to vol (0.0–1.0).
const QVector< Status > &	simInputs () const
	Read-only view of the cached simulation input values.
const QVector< Status > &	simOutputs () const
	Read-only view of the current simulation output values.
qsizetype	simOutputSize () const
	Returns the number of simulation output slots.
QKeySequence	trigger () const
	Returns the keyboard shortcut that activates this element.
int	type () const override
	Returns the custom type identifier for this item.
void	updateLabel ()
	Repositions and updates the label child item to reflect current state.
virtual void	updateLogic ()
	Computes this element's output values from its current inputs.
virtual void	updatePortsProperties ()
	Repositions and reconfigures all ports after the port count changes.
virtual void	updateTheme ()
	Updates the element's visual theme according to the current dark/light palette.
virtual float	volume () const
	Returns the audio playback volume (0.0–1.0).
virtual WirelessMode	wirelessMode () const
	Returns the wireless routing mode for this element.
	~GraphicElement () override
	Out-of-line so the unique_ptr to the forward-declared QSvgRenderer can be destroyed.
Public Member Functions inherited from ItemWithId
int	id () const
	Returns the unique integer identifier of this item, or -1 if unassigned.
	ItemWithId ()=default
	Constructs a new ItemWithId with an unassigned ID of -1.
void	setId (const int id)
	Sets the identifier to id.
virtual	~ItemWithId ()
	Self-unregisters from the current SceneItemRegistry, if any.

Protected Member Functions
void	mousePressEvent (QGraphicsSceneMouseEvent *event) override
void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event) override
Protected Member Functions inherited from GraphicElement
int	decodeSelectValue (int offset, int count) const
	Decodes count select-line statuses from simInputs() into a binary index.
QVariant	itemChange (GraphicsItemChange change, const QVariant &value) override
	Handles item state changes such as position, rotation, and selection.
virtual void	labelContentChanged ()
void	mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event) override
	Requests inline label editing on double-click.
QPixmap	pixmap () const
	Returns the pixmap currently displayed by this element.
QRectF	portsBoundingRect () const
	Returns the bounding rectangle that encompasses all child ports.
QRectF	renderBodyBounds () const
	Footprint of a "procedural render body" (IC/Mux/Demux/TruthTable): the nominal 64x64 body unioned with wherever the ports actually land, which extends past it once an instance has enough ports.
bool	sceneEvent (QEvent *event) override
	Intercepts mouse-press and mouse-release events to handle Ctrl+click.
void	setHasColors (const bool hasColors)
	Sets whether this element type supports color selection.
void	setLabelAnchor (const QPointF &pos)
void	setMaxInputSize (const int maxInputSize)
	Sets the maximum number of input ports to maxInputSize.
void	setMaxOutputSize (const int maxOutputSize)
	Sets the maximum number of output ports to maxOutputSize.
void	setMinInputSize (const int minInputSize)
	Sets the minimum number of input ports to minInputSize.
void	setMinOutputSize (const int minOutputSize)
	Sets the minimum number of output ports to minOutputSize.
bool	simUpdateInputs ()
	Snapshots each predecessor's output into the simulation input cache.
bool	simUpdateInputsAllowUnknown ()
	Like simUpdateInputs(), but allows Unknown/Error values through.

Additional Inherited Members
Public Types inherited from GraphicElement
enum	{ Type = QGraphicsItem::UserType + 3 }
Static Public Member Functions inherited from GraphicElement
static int	colorNameToIndex (const QString &color)
	Maps a color name ("White","Red","Green","Blue","Purple") to indices 0–4.
Protected Attributes inherited from GraphicElementInput
bool	m_isOn = false
bool	m_locked = false
Protected Attributes inherited from GraphicElement
ElementAppearance	m_appearance {this}
QGraphicsSimpleTextItem *	m_label = new QGraphicsSimpleTextItem(this)
	Child text item that displays the label and optional trigger shortcut.
QPointF	m_labelAnchor
	The label's intended anchor point in the element's un-rotated local frame; see setLabelAnchor().
ElementPorts	m_ports {this}
QString	m_titleText
	Translated title text shown in UI panels (from metadata).
QString	m_translatedName
	Translated element name used as tooltip and port object name.

Detailed Description

Momentary push-button input element that is active only while pressed.

Output is logic-1 while the mouse button is held down and logic-0 when released.

Definition at line 19 of file InputButton.h.

Constructor & Destructor Documentation

InputButton()

InputButton::InputButton ( QGraphicsItem * parent = nullptr )

explicit

Constructs the element with optional parent.

Definition at line 49 of file InputButton.cpp.

References GraphicElementInput::GraphicElementInput(), InputButton(), and setOff().

Referenced by InputButton().

Member Function Documentation

appearanceStates()

QList< std::pair< int, QString > > InputButton::appearanceStates ( ) const

overridevirtual

Reimplemented from base class.

Reimplemented from GraphicElement.

Definition at line 125 of file InputButton.cpp.

isOn()

bool InputButton::isOn ( const int port = 0 ) const

overridevirtual

Returns true if output port port is driven logic-high.

Implements GraphicElementInput.

Definition at line 109 of file InputButton.cpp.

References GraphicElementInput::m_isOn.

load()

void InputButton::load ( QDataStream & stream, SerializationContext & context )

overridevirtual

Reimplemented from base class.

Reimplemented from GraphicElement.

Definition at line 90 of file InputButton.cpp.

References VersionInfo::hasLockState(), VersionInfo::hasQMapFormat(), GraphicElement::load(), GraphicElementInput::m_locked, Serialization::readBoundedMetadata(), and SerializationContext::version.

mousePressEvent()

void InputButton::mousePressEvent ( QGraphicsSceneMouseEvent * event )

overrideprotected

Reimplemented from base class.

Definition at line 55 of file InputButton.cpp.

References GraphicElementInput::m_locked, and setOn().

mouseReleaseEvent()

void InputButton::mouseReleaseEvent ( QGraphicsSceneMouseEvent * event )

overrideprotected

Reimplemented from base class.

Definition at line 66 of file InputButton.cpp.

References GraphicElementInput::m_locked, and setOff().

save()

void InputButton::save ( QDataStream & stream, SerializationOptions options ) const

overridevirtual

Reimplemented from base class.

Reimplemented from GraphicElement.

Definition at line 76 of file InputButton.cpp.

References GraphicElementInput::m_locked, PortableFile, SerializationOptions::purpose, and GraphicElement::save().

setOff()

void InputButton::setOff ( )

overridevirtual

Drives all output ports logic-low (releases the button).

Implements GraphicElementInput.

Definition at line 115 of file InputButton.cpp.

References setOn().

Referenced by InputButton(), and mouseReleaseEvent().

setOn() [1/2]

void InputButton::setOn ( )

overridevirtual

Presses the button (logic-1).

Implements GraphicElementInput.

Definition at line 120 of file InputButton.cpp.

References setOn().

Referenced by mousePressEvent(), setOff(), and setOn().

setOn() [2/2]

void GraphicElementInput::setOn ( const bool value, const int port = 0 )

virtual

Sets output port to value.

Default implementation stores value in m_isOn, updates the pixmap (index 0 = off, 1 = on), and drives the output port status. Override when the element has more than one output port or non-standard pixmap indexing (e.g. InputRotary).

Parameters

value	New logic value.
port	Port index (default 0, unused by this base implementation).

Reimplemented from GraphicElementInput.

Definition at line 68 of file GraphicElementInput.cpp.

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

• InputButton.h
• InputButton.cpp