Display16 Class Reference

16-segment LED display output element (16 segments + decimal point = 17 inputs). More...

#include <Display16.h>

Inheritance diagram for Display16:

Public Member Functions
QString	color () const override
	Returns the current display color name.
	Display16 (QGraphicsItem *parent=nullptr)
	Constructs the element with optional parent.
void	load (QDataStream &stream, SerializationContext &context) override
void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override
void	refresh () override
	Refreshes the displayed segments based on current input states.
void	save (QDataStream &stream, SerializationOptions options) const override
	Serializes the color selection to stream.
void	setColor (const QString &color) override
	Sets the display color.
void	updatePortsProperties () override
	Updates port positions (fixed at 17 inputs).
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 QList< std::pair< int, QString > >	appearanceStates () const
	Returns the list of editable appearance states for this element. Each pair is (appearance list index, human-readable state description). Override in subclasses with multi-state appearances (e.g., Led).
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.
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	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.
virtual void	setAppearance (const bool defaultAppearance, const QString &fileName)
	Switches the element's appearance.
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	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	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.

Static Public Attributes
static constexpr const char *	kDefaultColor = "Red"

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 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.
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

16-segment LED display output element (16 segments + decimal point = 17 inputs).

Full alphanumeric coverage including diagonals. Supports red, green, and blue color variants.

Definition at line 23 of file Display16.h.

Constructor & Destructor Documentation

Display16()

Display16::Display16 ( QGraphicsItem * parent = nullptr )

explicit

Constructs the element with optional parent.

Definition at line 68 of file Display16.cpp.

References Display7::cachedSegmentRenderers(), Display16(), GraphicElement::GraphicElement(), GraphicElement::m_appearance, and updatePortsProperties().

Referenced by Display16().

Member Function Documentation

color()

QString Display16::color ( ) const

overridevirtual

Returns the current display color name.

Reimplemented from GraphicElement.

Definition at line 164 of file Display16.cpp.

Referenced by save(), and setColor().

load()

void Display16::load ( QDataStream & stream, SerializationContext & context )

overridevirtual

Reimplemented from base class.

Reimplemented from GraphicElement.

Definition at line 183 of file Display16.cpp.

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

paint()

void Display16::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget )

override

Reimplemented from base class.

Definition at line 132 of file Display16.cpp.

References GraphicElement::inputPort(), and GraphicElement::paint().

refresh()

void Display16::refresh ( )

overridevirtual

Refreshes the displayed segments based on current input states.

Reimplemented from GraphicElement.

Definition at line 92 of file Display16.cpp.

save()

void Display16::save ( QDataStream & stream, SerializationOptions options ) const

overridevirtual

Serializes the color selection to stream.

Reimplemented from GraphicElement.

Definition at line 169 of file Display16.cpp.

References color(), kDefaultColor, PortableFile, SerializationOptions::purpose, and GraphicElement::save().

setColor()

void Display16::setColor ( const QString & color )

overridevirtual

Sets the display color.

Parameters

color

Color name ("Red", "Green", or "Blue").

Reimplemented from GraphicElement.

Definition at line 158 of file Display16.cpp.

References color(), and GraphicElement::colorNameToIndex().

Referenced by load().

updatePortsProperties()

void Display16::updatePortsProperties ( )

overridevirtual

Updates port positions (fixed at 17 inputs).

Reimplemented from GraphicElement.

Definition at line 97 of file Display16.cpp.

References GraphicElement::inputPort(), GraphicElement::inputs(), GraphicElement::rotatePorts(), and Port::setName().

Referenced by Display16().

Member Data Documentation

kDefaultColor

const char* Display16::kDefaultColor = "Red"

staticconstexpr

Default segment color name. Single source of truth: used by the member initializer and serialization's default-elision check.

Definition at line 30 of file Display16.h.

Referenced by save().

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

• Display16.h
• Display16.cpp