A GLabel represents a text string. More...

#include "glabel.h"

Inheritance diagram for GLabel:

Public Types
enum	TextPosition { TEXT_BESIDE_ICON, TEXT_UNDER_ICON, TEXT_ONLY }
	The places where an interactor can place its text relative to its icon. More...

Public Member Functions
	GLabel(string text="", string iconFileName="", QWidget* parent=nullptr)
	Creates a label with the specified text label and optional icon. More...

	GLabel(string text, const QIcon &icon, QWidget* parent=nullptr)
	Creates a label with the specified text label and icon. More...

	GLabel(string text, const QPixmap &icon, QWidget* parent=nullptr)
	Creates a label with the specified text label and icon. More...

	~GLabel() override
	Frees memory allocated internally by the label. More...

void	addActionListener() (deprecated)
	Adds an event listener to be notified when this interactor is clicked or generally interacted with. More...

bool	eventsEnabled() const override
	Returns true if this interactor is currently accepting events. More...

string	getAccelerator() const
	Returns a string representing a hotkey for this interactor, or an empty string if no accelerator has been set. More...

string	getActionCommand() const
	Returns an action command for this interactor, which is a semi-unique string you can use to identify it when events occur. More...

string	getBackground() const
	Returns the background color of the interactor as a string. More...

int	getBackgroundInt() const
	Returns the background color of the interactor as an RGB integer. More...

GRectangle	getBounds() const
	Returns a rectangle representing the x/y position and size of this interactor. More...

string	getColor() const
	Returns the foreground/text color of the interactor as a string. More...

int	getColorInt() const
	Returns the foreground/text color of the interactor as an RGB integer. More...

GContainer *	getContainer() const
	Returns a pointer to the onscreen container holding this interactor. More...

string	getFont() const
	Returns the font of this interactor's text as a font string such as "Helvetica-12-Bold". More...

string	getForeground() const
	Returns the foreground/text color of the interactor as a string. More...

int	getForegroundInt() const
	Returns the foreground/text color of the interactor as an RGB integer. More...

double	getHeight() const
	Returns the current onscreen height of this interactor in pixels. More...

string	getIcon() const
	Returns the file name of the icon associated with this interactor, or an empty string if no icon has been set. More...

int	getID() const
	Returns a globally unique identifier for this interactor, which is set when the interactor is constructed. More...

_Internal_QWidget*	getInternalWidget() const override
	Returns a direct pointer to the internal Qt widget being wrapped by this interactor. More...

string	getLabel() const
	Returns the string displayed by the label. More...

GPoint	getLocation() const
	Returns an (x, y) point representing the onscreen location of the top-left corner of this interactor within its containing window. More...

double	getMinimumHeight() const
	Returns the minimum height in pixels that this interactor will permit itself to be resized to. More...

GDimension	getMinimumSize() const
	Returns a GDimension structure representing the minimum size in pixels that this interactor will permit itself to be resized to. More...

double	getMinimumWidth() const
	Returns the minimum width in pixels that this interactor will permit itself to be resized to. More...

string	getName() const
	Returns a string representing a unique name for this interactor. More...

double	getPreferredHeight() const
	Returns the height in pixels that this interactor would prefer to be, which would exactly fit its contents with no stretching or scrollbars. More...

GDimension	getPreferredSize() const
	Returns a GDimension structure storing the width and height in pixels that this interactor would prefer to be, which would exactly fit its contents with no stretching or scrollbars. More...

double	getPreferredWidth() const
	Returns the height in pixels that this interactor would prefer to be, which would exactly fit its contents with no stretching or scrollbars. More...

GDimension	getSize() const
	Returns a GDimension structure storing the current onscreen width and height of this interactor in pixels. More...

string	getText() const
	Returns the string displayed by the label. More...

GInteractor::TextPosition	getTextPosition() const
	Returns the label's text position relative to its icon. More...

string	getType() const override
	Returns a string representing the class name of this interactor, such as "GButton" or "GCheckBox". More...

QWidget*	getWidget() const override
	Returns a direct pointer to the internal Qt widget being wrapped by this interactor. More...

double	getWidth() const
	Returns the current onscreen width of this interactor in pixels. More...

double	getX() const
	Returns the x-coordinate of the top-left pixel of this interactor within its onscreen window. More...

double	getY() const
	Returns the y-coordinate of the top-left pixel of this interactor within its onscreen window. More...

bool	inBounds(double x, double y) const
	Returns true if the given x/y pixel is within the bounds of this interactor. More...

bool	inBounds(int x, int y) const
	Returns true if the given x/y pixel is within the bounds of this interactor. More...

bool	isEnabled() const
	Returns true if this interactor is currently enabled. More...

bool	isVisible() const
	Returns true if the interactor is visible on the screen. More...

bool	isWordWrap() const
	Returns whether the label should wrap if its text is too long. More...

void	removeActionListener()
	Removes the action listener from this interactor so that it will no longer call it when events occur. More...

void	removeClickListener()
	Removes the click listener from this interactor so that it will no longer call it when events occur. More...

void	removeDoubleClickListener()
	Removes the double-click listener from this interactor so that it will no longer call it when events occur. More...

void	removeKeyListener()
	Removes the key listener from this interactor so that it will no longer call it when key events occur. More...

void	removeMouseListener()
	Removes the mouse listener from this interactor so that it will no longer call it when events occur. More...

void	requestFocus()
	Transfers keyboard focus to this interactor. More...

void	setAccelerator(string accelerator)
	Sets an accelerator hotkey for this interactor, such as "Ctrl-S". More...

void	setActionCommand(string actionCommand)
	Sets the action command for this interactor. More...

void	setActionListener(GEventListener func)
	Sets an action listener on this interactor so that it will be called when it is interacted with in its primary way. More...

void	setActionListener(GEventListenerVoid func)
	Sets an action listener on this interactor so that it will be called when it is interacted with in its primary way. More...

void	setBackground(int rgb)
	Sets the background color of the interactor to the color represented by the given RGB integer. More...

void	setBackground(string color)
	Sets the background color of the interactor to the color represented by the given string. More...

void	setBounds(double x, double y, double width, double height) override
	Sets the size and location of the widget. More...

void	setBounds(const GRectangle &size) override
	Sets the size and location of the widget. More...

void	setClickListener(GEventListener func)
	Sets a mouse listener on this interactor so that it will be called when the mouse is clicked on it. More...

void	setClickListener(GEventListenerVoid func)
	Sets a mouse listener on this interactor so that it will be called when the mouse is clicked on it. More...

void	setColor(int rgb) override
	Sets the foreground/text color of the interactor to the color represented by the given RGB integer. More...

void	setColor(string color) override
	Sets the foreground/text color of the interactor to the color represented by the given string. More...

void	setDoubleClickListener(GEventListener func)
	Sets a mouse listener on this interactor so that it will be called when the mouse is double-clicked on it. More...

void	setDoubleClickListener(GEventListenerVoid func)
	Sets a mouse listener on this interactor so that it will be called when the mouse is double-clicked on it. More...

void	setEnabled(bool value)
	Sets whether this interactor is currently enabled. More...

void	setEventsEnabled(bool eventsEnabled)
	Sets whether the object is currently allowing itself to fire events. More...

void	setFont(const QFont &font) override
	Sets the font used by this widget to the given Qt font. More...

void	setFont(string font) override
	Sets the font used by this widget to the font represented by the given font string, such as "Helvetica-16-Bold". More...

void	setForeground(int rgb) override
	Sets the foreground/text color of the interactor to the color represented by the given RGB integer. More...

void	setForeground(string color) override
	Sets the foreground/text color of the interactor to the color represented by the given string. More...

void	setHeight(double height) override
	Sets the onscreen height of the interactor in pixels. More...

void	setIcon(const QIcon &icon) override
	Sets the icon associated with this interactor. More...

void	setIcon(const QPixmap &icon) override
	Sets the icon associated with this interactor. More...

void	setIcon(string filename, bool retainIconSize=true) override
	Sets the file name of the icon associated with this interactor, or an empty string if no icon has been set. More...

void	setKeyListener(GEventListener func)
	Sets a key listener on this interactor so that it will be called when the user presses any key. More...

void	setKeyListener(GEventListenerVoid func)
	Sets a key listener on this interactor so that it will be called when the user presses any key. More...

void	setLabel(string text)
	Sets the text on the label to be the given text. More...

void	setLocation(double x, double y) override
	Sets the onscreen x/y-coordinate of the top-left corner of the interactor relative to its window. More...

void	setMinimumSize(double width, double height)
	Sets the minimum size in pixels that this interactor will permit itself to be resized to. More...

void	setMinimumSize(const GDimension &size)
	Sets the minimum size in pixels that this interactor will permit itself to be resized to. More...

void	setMouseListener(GEventListener func)
	Sets a mouse listener on this interactor so that it will be called when the mouse is moved or clicked on it. More...

void	setMouseListener(GEventListenerVoid func)
	Sets a mouse listener on this interactor so that it will be called when the mouse is moved or clicked on it. More...

void	setName(string name)
	Sets a string representing a unique name for this interactor. More...

void	setPreferredHeight(double height)
	Sets the height in pixels that this interactor would prefer to be. More...

void	setPreferredSize(double width, double height)
	Sets the width and height in pixels that this interactor would prefer to be. More...

void	setPreferredSize(const GDimension &size)
	Sets the size in pixels that this interactor would prefer to be. More...

void	setPreferredWidth(double width)
	Sets the width in pixels that this interactor would prefer to be. More...

void	setSize(double width, double height) override
	Sets the onscreen width and height of the interactor in pixels. More...

void	setSize(const GDimension &size) override
	Sets the onscreen width and height of the interactor in pixels. More...

void	setText(string text)
	Sets the text on the label to be the given text. More...

void	setTextPosition(GInteractor::TextPosition position)
	Sets the label's text position relative to its icon. More...

void	setTooltip(string tooltipText)
	Sets a "tooltip" that will appear if the user hovers their mouse over the interactor. More...

void	setVisible(bool visible) override
	Returns true if the interactor is visible on the screen. More...

void	setWidth(double width) override
	Sets the onscreen width of the interactor in pixels. More...

void	setWordWrap(bool wrap)
	Sets whether the label should wrap if its text is too long. More...

void	setX(double x) override
	Sets the onscreen x-coordinate of the top-left corner of the interactor relative to its window. More...

void	setY(double y) override
	Sets the onscreen y-coordinate of the top-left corner of the interactor relative to its window. More...

string	toString() const
	Returns a string representation of this observable object's state. More...

Protected Member Functions
void	clearEventListeners()
	Removes all event listeners from this object. More...

void	ensureThreadSafety(string memberName="")
	Ensures that we are currently in the Qt GUI thread. More...

void	fireEvent(GEvent &event)
	Sends out the given event to any attached listeners. More...

void	fireGEvent(QEvent *event, EventType eventType, string eventName)
	Creates an event of the given type, then sends it out to any attached listeners. More...

void	fireGEvent(QCloseEvent *event, EventType eventType, string eventName)
	Creates an event of the given type, then sends it out to any attached listeners. More...

void	fireGEvent(QKeyEvent *event, EventType eventType, string eventName)
	Creates an event of the given type, then sends it out to any attached listeners. More...

void	fireGEvent(QMouseEvent *event, EventType eventType, string eventName, string actionCommand="")
	Creates an event of the given type, then sends it out to any attached listeners. More...

void	fireGEvent(QResizeEvent *event, EventType eventType, string eventName)
	Creates an event of the given type, then sends it out to any attached listeners. More...

void	fireGEvent(QTimerEvent *event, EventType eventType, string eventName)
	Creates an event of the given type, then sends it out to any attached listeners. More...

void	fireGEvent(QWheelEvent *event, EventType eventType, string eventName)
	Creates an event of the given type, then sends it out to any attached listeners. More...

void	fireGEvent(QWindowStateChangeEvent *event, EventType eventType, string eventName)
	Creates an event of the given type, then sends it out to any attached listeners. More...

bool	hasEventListener(string eventName) const
	Returns true if the observable object has a listener for the given type of event. More...

bool	isAcceptingEvent(int eventMask) const
	Returns true if the observable object has a listener for the given type of event. More...

bool	isAcceptingEvent(const GEvent &event) const
	Returns true if the observable object has a listener for the given type of event. More...

bool	isAcceptingEvent(string eventType) const
	Returns true if the observable object has a listener for the given type of event. More...

void	removeEventListener(string eventName)
	Removes any event listener from this observable object that would respond to the given type of event, such as "click" or "keydown". More...

void	removeEventListeners(std::initializer_list< string > eventNames)
	Removes any event listener from this observable object that would respond to the given types of events, such as "click" or "keydown". More...

void	setEventListener(string eventName, GEventListener func)
	Adds an event listener from this observable object to respond to the given type of event, such as "click" or "keydown". More...

void	setEventListener(string eventName, GEventListenerVoid func)
	Adds an event listener from this observable object to respond to the given type of event, such as "click" or "keydown". More...

void	setEventListeners(std::initializer_list< string > eventNames, GEventListener func)
	Adds an event listener from this observable object to respond to the given types of events, such as "click" or "keydown". More...

void	setEventListeners(std::initializer_list< string > eventNames, GEventListenerVoid func)
	Adds an event listener from this observable object to respond to the given types of events, such as "click" or "keydown". More...

Detailed Description

A GLabel represents a text string.

A label can contain text and/or an image icon.

GLabels can be made clickable by setting an action, click, or double-click listener, but generally if you want a clickable interactor with text on it, you may prefer a GButton.

Member Enumeration Documentation

◆ TextPosition

enum TextPosition

inherited

The places where an interactor can place its text relative to its icon.

Enumerator
TEXT_BESIDE_ICON
TEXT_UNDER_ICON
TEXT_ONLY

Constructor & Destructor Documentation

◆ GLabel() [1/3]

GLabel	(	string	text = `""`,
		string	iconFileName = `""`,
		QWidget*	parent = `nullptr`
	)

Creates a label with the specified text label and optional icon.

◆ GLabel() [2/3]

GLabel	(	string	text,
		const QIcon &	icon,
		QWidget*	parent = `nullptr`
	)

Creates a label with the specified text label and icon.

◆ GLabel() [3/3]

GLabel	(	string	text,
		const QPixmap &	icon,
		QWidget*	parent = `nullptr`
	)

Creates a label with the specified text label and icon.

◆ ~GLabel()

~GLabel ( )

override

Frees memory allocated internally by the label.

Member Function Documentation

◆ addActionListener()

void addActionListener ( )

virtualinherited

Adds an event listener to be notified when this interactor is clicked or generally interacted with.

Deprecated:: does nothing; use setActionListener instead

◆ clearEventListeners()

void clearEventListeners ( )

protectedvirtualinherited

Removes all event listeners from this object.

◆ ensureThreadSafety()

void ensureThreadSafety ( string memberName = "" )

protectedvirtualinherited

Ensures that we are currently in the Qt GUI thread.

◆ eventsEnabled()

bool eventsEnabled ( ) const

overridevirtualinherited

Returns true if this interactor is currently accepting events.

Initially true. An interactor must be visible and added to an onscreen window to receive events.

Reimplemented from GObservable.

◆ fireEvent()

void fireEvent ( GEvent & event )

protectedvirtualinherited

Sends out the given event to any attached listeners.