#include <colordialog.h>

Inheritance diagram for PerceptualColor::ColorDialog:

[legend]

Public Types
typedef QColorDialog::ColorDialogOption	ColorDialogOption

typedef QColorDialog::ColorDialogOptions	ColorDialogOptions

enum class	DialogLayoutDimensions { ScreenSizeDependent , Collapsed , Expanded }

Public Types inherited from QDialog
enum	DialogCode

Public Types inherited from QWidget
enum	RenderFlag

Public Types inherited from QPaintDevice
enum	PaintDeviceMetric

Properties
QColor	currentColor

DialogLayoutDimensions	layoutDimensions

ColorDialogOptions	options

Properties inherited from QDialog
	modal

	sizeGripEnabled

Properties inherited from QWidget
	acceptDrops

	accessibleDescription

	accessibleName

	autoFillBackground

	baseSize

	childrenRect

	childrenRegion

	contextMenuPolicy

	cursor

	enabled

	focus

	focusPolicy

	font

	frameGeometry

	frameSize

	fullScreen

	geometry

	height

	inputMethodHints

	isActiveWindow

	layoutDirection

	locale

	maximized

	maximumHeight

	maximumSize

	maximumWidth

	minimized

	minimumHeight

	minimumSize

	minimumSizeHint

	minimumWidth

	modal

	mouseTracking

	normalGeometry

	palette

	pos

	rect

	size

	sizeHint

	sizeIncrement

	sizePolicy

	statusTip

	styleSheet

	tabletTracking

	toolTip

	toolTipDuration

	updatesEnabled

	visible

	whatsThis

	width

	windowFilePath

	windowFlags

	windowIcon

	windowIconText

	windowModality

	windowModified

	windowOpacity

	windowTitle

	x

	y

Properties inherited from QObject
	objectName

Signals
void	colorSelected (const QColor &color)

void	currentColorChanged (const QColor &color)

void	layoutDimensionsChanged (const PerceptualColor::ColorDialog::DialogLayoutDimensions newLayoutDimensions)

void	optionsChanged (const PerceptualColor::ColorDialog::ColorDialogOptions newOptions)

Public Slots
void	setCurrentColor (const QColor &color)

void	setLayoutDimensions (const PerceptualColor::ColorDialog::DialogLayoutDimensions newLayoutDimensions)

Q_INVOKABLE void	setOption (PerceptualColor::ColorDialog::ColorDialogOption option, bool on=true)

void	setOptions (PerceptualColor::ColorDialog::ColorDialogOptions newOptions)

Public Member Functions
Q_INVOKABLE	ColorDialog (const QColor &initial, QWidget *parent=nullptr)

Q_INVOKABLE	ColorDialog (const QSharedPointer< PerceptualColor::RgbColorSpace > &colorSpace, const QColor &initial, QWidget *parent=nullptr)

Q_INVOKABLE	ColorDialog (const QSharedPointer< PerceptualColor::RgbColorSpace > &colorSpace, QWidget *parent=nullptr)

Q_INVOKABLE	ColorDialog (QWidget *parent=nullptr)

virtual	~ColorDialog () noexcept override

QColor	currentColor () const

ColorDialog::DialogLayoutDimensions	layoutDimensions () const

virtual void	open ()

Q_INVOKABLE void	open (QObject receiver, const char member)

ColorDialogOptions	options () const

Q_INVOKABLE QColor	selectedColor () const

virtual void	setVisible (bool visible) override

Q_INVOKABLE bool	testOption (PerceptualColor::ColorDialog::ColorDialogOption option) const

Public Member Functions inherited from QDialog
	QDialog (QWidget *parent, Qt::WindowFlags f)

virtual void	accept ()

void	accepted ()

virtual int	exec ()

void	finished (int result)

bool	isSizeGripEnabled () const const

virtual QSize	minimumSizeHint () const const override

virtual void	reject ()

void	rejected ()

int	result () const const

void	setModal (bool modal)

void	setResult (int i)

void	setSizeGripEnabled (bool)

virtual QSize	sizeHint () const const override

Public Member Functions inherited from QWidget
	QWidget (QWidget *parent, Qt::WindowFlags f)

bool	acceptDrops () const const

QString	accessibleDescription () const const

QString	accessibleName () const const

QList< QAction * >	actions () const const

void	activateWindow ()

QAction *	addAction (const QIcon &icon, const QString &text)

QAction *	addAction (const QIcon &icon, const QString &text, Args &&... args)

QAction *	addAction (const QIcon &icon, const QString &text, const QKeySequence &shortcut)

QAction *	addAction (const QIcon &icon, const QString &text, const QKeySequence &shortcut, Args &&... args)

QAction *	addAction (const QIcon &icon, const QString &text, const QKeySequence &shortcut, const QObject receiver, const char member, Qt::ConnectionType type)

QAction *	addAction (const QIcon &icon, const QString &text, const QObject receiver, const char member, Qt::ConnectionType type)

QAction *	addAction (const QString &text)

QAction *	addAction (const QString &text, Args &&... args)

QAction *	addAction (const QString &text, const QKeySequence &shortcut)

QAction *	addAction (const QString &text, const QKeySequence &shortcut, Args &&... args)

QAction *	addAction (const QString &text, const QKeySequence &shortcut, const QObject receiver, const char member, Qt::ConnectionType type)

QAction *	addAction (const QString &text, const QObject receiver, const char member, Qt::ConnectionType type)

void	addAction (QAction *action)

void	addActions (const QList< QAction * > &actions)

void	adjustSize ()

bool	autoFillBackground () const const

QPalette::ColorRole	backgroundRole () const const

QBackingStore *	backingStore () const const

QSize	baseSize () const const

QWidget *	childAt (const QPoint &p) const const

QWidget *	childAt (int x, int y) const const

QRect	childrenRect () const const

QRegion	childrenRegion () const const

void	clearFocus ()

void	clearMask ()

bool	close ()

QMargins	contentsMargins () const const

QRect	contentsRect () const const

Qt::ContextMenuPolicy	contextMenuPolicy () const const

QCursor	cursor () const const

void	customContextMenuRequested (const QPoint &pos)

WId	effectiveWinId () const const

void	ensurePolished () const const

Qt::FocusPolicy	focusPolicy () const const

QWidget *	focusProxy () const const

QWidget *	focusWidget () const const

const QFont &	font () const const

QFontInfo	fontInfo () const const

QFontMetrics	fontMetrics () const const

QPalette::ColorRole	foregroundRole () const const

QRect	frameGeometry () const const

QSize	frameSize () const const

const QRect &	geometry () const const

QPixmap	grab (const QRect &rectangle)

void	grabGesture (Qt::GestureType gesture, Qt::GestureFlags flags)

void	grabKeyboard ()

void	grabMouse ()

void	grabMouse (const QCursor &cursor)

int	grabShortcut (const QKeySequence &key, Qt::ShortcutContext context)

QGraphicsEffect *	graphicsEffect () const const

QGraphicsProxyWidget *	graphicsProxyWidget () const const

bool	hasEditFocus () const const

bool	hasFocus () const const

virtual bool	hasHeightForWidth () const const

bool	hasMouseTracking () const const

bool	hasTabletTracking () const const

int	height () const const

virtual int	heightForWidth (int w) const const

void	hide ()

Qt::InputMethodHints	inputMethodHints () const const

virtual QVariant	inputMethodQuery (Qt::InputMethodQuery query) const const

void	insertAction (QAction before, QAction action)

void	insertActions (QAction before, const QList< QAction > &actions)

bool	isActiveWindow () const const

bool	isAncestorOf (const QWidget *child) const const

bool	isEnabled () const const

bool	isEnabledTo (const QWidget *ancestor) const const

bool	isFullScreen () const const

bool	isHidden () const const

bool	isMaximized () const const

bool	isMinimized () const const

bool	isModal () const const

bool	isTopLevel () const const

bool	isVisible () const const

bool	isVisibleTo (const QWidget *ancestor) const const

bool	isWindow () const const

bool	isWindowModified () const const

QLayout *	layout () const const

Qt::LayoutDirection	layoutDirection () const const

QLocale	locale () const const

void	lower ()

QPoint	mapFrom (const QWidget *parent, const QPoint &pos) const const

QPointF	mapFrom (const QWidget *parent, const QPointF &pos) const const

QPoint	mapFromGlobal (const QPoint &pos) const const

QPointF	mapFromGlobal (const QPointF &pos) const const

QPoint	mapFromParent (const QPoint &pos) const const

QPointF	mapFromParent (const QPointF &pos) const const

QPoint	mapTo (const QWidget *parent, const QPoint &pos) const const

QPointF	mapTo (const QWidget *parent, const QPointF &pos) const const

QPoint	mapToGlobal (const QPoint &pos) const const

QPointF	mapToGlobal (const QPointF &pos) const const

QPoint	mapToParent (const QPoint &pos) const const

QPointF	mapToParent (const QPointF &pos) const const

QRegion	mask () const const

int	maximumHeight () const const

QSize	maximumSize () const const

int	maximumWidth () const const

int	minimumHeight () const const

QSize	minimumSize () const const

int	minimumWidth () const const

void	move (const QPoint &)

void	move (int x, int y)

QWidget *	nativeParentWidget () const const

QWidget *	nextInFocusChain () const const

QRect	normalGeometry () const const

void	overrideWindowFlags (Qt::WindowFlags flags)

virtual QPaintEngine *	paintEngine () const const override

const QPalette &	palette () const const

QWidget *	parentWidget () const const

QPoint	pos () const const

QWidget *	previousInFocusChain () const const

	QWIDGETSIZE_MAX QWIDGETSIZE_MAX

void	raise ()

QRect	rect () const const

void	releaseKeyboard ()

void	releaseMouse ()

void	releaseShortcut (int id)

void	removeAction (QAction *action)

void	render (QPaintDevice *target, const QPoint &targetOffset, const QRegion &sourceRegion, RenderFlags renderFlags)

void	render (QPainter *painter, const QPoint &targetOffset, const QRegion &sourceRegion, RenderFlags renderFlags)

void	repaint ()

void	repaint (const QRect &rect)

void	repaint (const QRegion &rgn)

void	repaint (int x, int y, int w, int h)

void	resize (const QSize &)

void	resize (int w, int h)

bool	restoreGeometry (const QByteArray &geometry)

QByteArray	saveGeometry () const const

QScreen *	screen () const const

void	scroll (int dx, int dy)

void	scroll (int dx, int dy, const QRect &r)

void	setAcceptDrops (bool on)

void	setAccessibleDescription (const QString &description)

void	setAccessibleName (const QString &name)

void	setAttribute (Qt::WidgetAttribute attribute, bool on)

void	setAutoFillBackground (bool enabled)

void	setBackgroundRole (QPalette::ColorRole role)

void	setBaseSize (const QSize &)

void	setBaseSize (int basew, int baseh)

void	setContentsMargins (const QMargins &margins)

void	setContentsMargins (int left, int top, int right, int bottom)

void	setContextMenuPolicy (Qt::ContextMenuPolicy policy)

void	setCursor (const QCursor &)

void	setDisabled (bool disable)

void	setEditFocus (bool enable)

void	setEnabled (bool)

void	setFixedHeight (int h)

void	setFixedSize (const QSize &s)

void	setFixedSize (int w, int h)

void	setFixedWidth (int w)

void	setFocus ()

void	setFocus (Qt::FocusReason reason)

void	setFocusPolicy (Qt::FocusPolicy policy)

void	setFocusProxy (QWidget *w)

void	setFont (const QFont &)

void	setForegroundRole (QPalette::ColorRole role)

void	setGeometry (const QRect &)

void	setGeometry (int x, int y, int w, int h)

void	setGraphicsEffect (QGraphicsEffect *effect)

void	setHidden (bool hidden)

void	setInputMethodHints (Qt::InputMethodHints hints)

void	setLayout (QLayout *layout)

void	setLayoutDirection (Qt::LayoutDirection direction)

void	setLocale (const QLocale &locale)

void	setMask (const QBitmap &bitmap)

void	setMask (const QRegion &region)

void	setMaximumHeight (int maxh)

void	setMaximumSize (const QSize &)

void	setMaximumSize (int maxw, int maxh)

void	setMaximumWidth (int maxw)

void	setMinimumHeight (int minh)

void	setMinimumSize (const QSize &)

void	setMinimumSize (int minw, int minh)

void	setMinimumWidth (int minw)

void	setMouseTracking (bool enable)

void	setPalette (const QPalette &)

void	setParent (QWidget *parent)

void	setParent (QWidget *parent, Qt::WindowFlags f)

void	setScreen (QScreen *screen)

void	setShortcutAutoRepeat (int id, bool enable)

void	setShortcutEnabled (int id, bool enable)

void	setSizeIncrement (const QSize &)

void	setSizeIncrement (int w, int h)

void	setSizePolicy (QSizePolicy)

void	setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)

void	setStatusTip (const QString &)

void	setStyle (QStyle *style)

void	setStyleSheet (const QString &styleSheet)

void	setTabletTracking (bool enable)

void	setToolTip (const QString &)

void	setToolTipDuration (int msec)

void	setUpdatesEnabled (bool enable)

void	setupUi (QWidget *widget)

void	setWhatsThis (const QString &)

void	setWindowFilePath (const QString &filePath)

void	setWindowFlag (Qt::WindowType flag, bool on)

void	setWindowFlags (Qt::WindowFlags type)

void	setWindowIcon (const QIcon &icon)

void	setWindowIconText (const QString &)

void	setWindowModality (Qt::WindowModality windowModality)

void	setWindowModified (bool)

void	setWindowOpacity (qreal level)

void	setWindowRole (const QString &role)

void	setWindowState (Qt::WindowStates windowState)

void	setWindowTitle (const QString &)

void	show ()

void	showFullScreen ()

void	showMaximized ()

void	showMinimized ()

void	showNormal ()

QSize	size () const const

QSize	sizeIncrement () const const

QSizePolicy	sizePolicy () const const

void	stackUnder (QWidget *w)

QString	statusTip () const const

QStyle *	style () const const

QString	styleSheet () const const

bool	testAttribute (Qt::WidgetAttribute attribute) const const

QString	toolTip () const const

int	toolTipDuration () const const

QWidget *	topLevelWidget () const const

bool	underMouse () const const

void	ungrabGesture (Qt::GestureType gesture)

void	unsetCursor ()

void	unsetLayoutDirection ()

void	unsetLocale ()

void	update ()

void	update (const QRect &rect)

void	update (const QRegion &rgn)

void	update (int x, int y, int w, int h)

void	updateGeometry ()

bool	updatesEnabled () const const

QRegion	visibleRegion () const const

QString	whatsThis () const const

int	width () const const

QWidget *	window () const const

QString	windowFilePath () const const

Qt::WindowFlags	windowFlags () const const

QWindow *	windowHandle () const const

QIcon	windowIcon () const const

void	windowIconChanged (const QIcon &icon)

QString	windowIconText () const const

void	windowIconTextChanged (const QString &iconText)

Qt::WindowModality	windowModality () const const

qreal	windowOpacity () const const

QString	windowRole () const const

Qt::WindowStates	windowState () const const

QString	windowTitle () const const

void	windowTitleChanged (const QString &title)

Qt::WindowType	windowType () const const

WId	winId () const const

int	x () const const

int	y () const const

Public Member Functions inherited from QObject
	QObject (QObject *parent)

QBindable< QString >	bindableObjectName ()

bool	blockSignals (bool block)

const QObjectList &	children () const const

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const const

bool	disconnect (const QObject receiver, const char method) const const

void	dumpObjectInfo () const const

void	dumpObjectTree () const const

QList< QByteArray >	dynamicPropertyNames () const const

T	findChild (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (Qt::FindChildOptions options) const const

bool	inherits (const char *className) const const

void	installEventFilter (QObject *filterObj)

bool	isQuickItemType () const const

bool	isWidgetType () const const

bool	isWindowType () const const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const const

void	moveToThread (QThread *targetThread)

QString	objectName () const const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const const

QVariant	property (const char *name) const const

	Q_CLASSINFO (Name, Value)

	Q_EMIT Q_EMIT

	Q_ENUM (...)

	Q_ENUM_NS (...)

	Q_ENUMS (...)

	Q_FLAG (...)

	Q_FLAG_NS (...)

	Q_FLAGS (...)

	Q_GADGET Q_GADGET

	Q_GADGET_EXPORT (EXPORT_MACRO)

	Q_INTERFACES (...)

	Q_INVOKABLE Q_INVOKABLE

	Q_MOC_INCLUDE Q_MOC_INCLUDE

	Q_NAMESPACE Q_NAMESPACE

	Q_NAMESPACE_EXPORT (EXPORT_MACRO)

	Q_OBJECT Q_OBJECT

	Q_PROPERTY (...)

	Q_REVISION Q_REVISION

	Q_SET_OBJECT_NAME (Object)

	Q_SIGNAL Q_SIGNAL

	Q_SIGNALS Q_SIGNALS

	Q_SLOT Q_SLOT

	Q_SLOTS Q_SLOTS

T	qobject_cast (const QObject *object)

T	qobject_cast (QObject *object)

	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setObjectName (QAnyStringView name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	setProperty (const char *name, QVariant &&value)

bool	signalsBlocked () const const

int	startTimer (int interval, Qt::TimerType timerType)

int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)

QThread *	thread () const const

Public Member Functions inherited from QPaintDevice
int	colorCount () const const

int	depth () const const

qreal	devicePixelRatio () const const

qreal	devicePixelRatioF () const const

int	height () const const

int	heightMM () const const

int	logicalDpiX () const const

int	logicalDpiY () const const

bool	paintingActive () const const

int	physicalDpiX () const const

int	physicalDpiY () const const

int	width () const const

int	widthMM () const const

Static Public Member Functions
static QColor	getColor (const QColor &initial=Qt::white, QWidget *parent=nullptr, const QString &title=QString(), ColorDialogOptions options=ColorDialogOptions())

static QColor	getColor (const QSharedPointer< PerceptualColor::RgbColorSpace > &colorSpace, const QColor &initial=Qt::white, QWidget *parent=nullptr, const QString &title=QString(), ColorDialogOptions options=ColorDialogOptions())

Static Public Member Functions inherited from QWidget
QWidget *	createWindowContainer (QWindow window, QWidget parent, Qt::WindowFlags flags)

QWidget *	find (WId id)

QWidget *	keyboardGrabber ()

QWidget *	mouseGrabber ()

void	setTabOrder (QWidget first, QWidget second)

void	setTabOrder (std::initializer_list< QWidget * > widgets)

Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

QString	tr (const char sourceText, const char disambiguation, int n)

Protected Member Functions
virtual void	changeEvent (QEvent *event) override

virtual void	done (int result) override

virtual void	showEvent (QShowEvent *event) override

Protected Member Functions inherited from QDialog
virtual void	closeEvent (QCloseEvent *e) override

virtual void	contextMenuEvent (QContextMenuEvent *e) override

virtual bool	eventFilter (QObject o, QEvent e) override

virtual void	keyPressEvent (QKeyEvent *e) override

virtual void	resizeEvent (QResizeEvent *) override

Protected Member Functions inherited from QWidget
virtual void	actionEvent (QActionEvent *event)

void	create (WId window, bool initializeWindow, bool destroyOldWindow)

void	destroy (bool destroyWindow, bool destroySubWindows)

virtual void	dragEnterEvent (QDragEnterEvent *event)

virtual void	dragLeaveEvent (QDragLeaveEvent *event)

virtual void	dragMoveEvent (QDragMoveEvent *event)

virtual void	dropEvent (QDropEvent *event)

virtual void	enterEvent (QEnterEvent *event)

virtual bool	event (QEvent *event) override

virtual void	focusInEvent (QFocusEvent *event)

bool	focusNextChild ()

virtual bool	focusNextPrevChild (bool next)

virtual void	focusOutEvent (QFocusEvent *event)

bool	focusPreviousChild ()

virtual void	hideEvent (QHideEvent *event)

virtual void	initPainter (QPainter *painter) const const override

virtual void	inputMethodEvent (QInputMethodEvent *event)

virtual void	keyReleaseEvent (QKeyEvent *event)

virtual void	leaveEvent (QEvent *event)

virtual int	metric (PaintDeviceMetric m) const const override

virtual void	mouseDoubleClickEvent (QMouseEvent *event)

virtual void	mouseMoveEvent (QMouseEvent *event)

virtual void	mousePressEvent (QMouseEvent *event)

virtual void	mouseReleaseEvent (QMouseEvent *event)

virtual void	moveEvent (QMoveEvent *event)

virtual bool	nativeEvent (const QByteArray &eventType, void message, qintptr result)

virtual void	paintEvent (QPaintEvent *event)

virtual void	tabletEvent (QTabletEvent *event)

void	updateMicroFocus (Qt::InputMethodQuery query)

virtual void	wheelEvent (QWheelEvent *event)

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const const

int	receivers (const char *signal) const const

QObject *	sender () const const

int	senderSignalIndex () const const

virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Public Attributes inherited from QDialog
	Accepted

	Rejected

Public Attributes inherited from QWidget
	DrawChildren

	DrawWindowBackground

	IgnoreMask

typedef	RenderFlags

Public Attributes inherited from QObject
typedef	QObjectList

Public Attributes inherited from QPaintDevice
	PdmDepth

	PdmDevicePixelRatio

	PdmDevicePixelRatioScaled

	PdmDpiX

	PdmDpiY

	PdmHeight

	PdmHeightMM

	PdmNumColors

	PdmPhysicalDpiX

	PdmPhysicalDpiY

	PdmWidth

	PdmWidthMM

Detailed Description

A perceptually uniform color picker dialog.

The color dialog’s function is to allow users to choose colors intuitively. For example, you might use this in a drawing program to allow the user to set the brush color.

At difference to QColorDialog, this dialog’s graphical components are perceptually uniform and therefore more intuitive. It’s internally based on the LCH color model, which does reflect the human perception much better than RGB or its transforms like HSV. At the same time, this dialog does not require the user itself to know anything about LCH at all, because the graphical representations is intuitive.

ColorDialog

It is an mostly source-compatible replacement for QColorDialog. It also adds some extra functionality that is not available in QColorDialog.

Just as with QColorDialog, the static functions provide a modal color dialog. The static getColor() function shows the dialog, and allows the user to specify a color:

// Show a modal color dialog and get the color that the user has chosen

QColor myColor = PerceptualColor::ColorDialog::getColor();

The function can also be used to let users choose a color with a level of transparency: pass the alpha channel option as an additional argument:

    QColor myColor = PerceptualColor::ColorDialog::getColor(
        // Current color at widget startup:
        Qt::green,
        // Parent widget (or nullptr for no parent):
        nullptr,
        // Window title (or an empty string for default title):
        QStringLiteral("Window title"),
        // Options:
        PerceptualColor::ColorDialog::ColorDialogOption::ShowAlphaChannel);

ColorDialog with alpha channel

More features:

A screen color picker is provided on many platforms.
For a non-modal dialog, use the normal constructors of this class.
The default window title is Select Color, and not the title of your application. It can of course be customized with QWidget::setWindowTitle(). The window title will not be updated on QEvent::LanguageChange events.
At difference to the usual native platform color dialog, this dialog can be resized. That makes sense, because it allows to see better the gamut image. Therefore, this dialog is by default bigger than the usual native platform color dialog. You can of course customize the dialog size with QWidget::resize() or force a more space-saving layout through the layoutDimensions property.
The ColorPatch that indicates the selected color is placed prominently at the top of the widget. That is also useful for touch screens as the ColorPatch will not be hidden by the hand of the user when the user is touching the above color selection widgets.
This dialog uses icons. See High DPI support about how to enable support for high-DPI icons.

Note

The API of this class is mostly source-compatible to the API of QColorDialog. This is a list of incompatibilities:

The constructors and also getColor() require a color space as argument.
As this dialog does not provide functionality for custom colors and standard color, the corresponding static functions of QColorDialog are not available in this class.
The option ColorDialogOption::DontUseNativeDialog will always remain false (even if set explicitly), because it’s just the point of this library to provide an own, non-native dialog.
While the enum declaration ColorDialogOption itself is aliased here, this isn't possible for the enum values itself. Therefor, when working with KConfig Entry Options, you cannot use ShowAlphaChannel but you have to use the fully qualified identifier (either PerceptualColor::ColorDialog::ColorDialogOption::ShowAlphaChannel or QColorDialog::ShowAlphaChannel, at your option.
Calling setCurrentColor() with colors that are not QColor::Spec::Rgb will lead to an automatic conversion like QColorDialog does, but at difference to QColorDialog, it is done with more precision, therefor the resulting currentColor() might be slightly different. The same is true for QColor::Spec::Rgb types with floating point precision: While QColorDialog would round to full integers, this dialog preserves the floating point precision.
When the default constructor is used, unlike QColorDialog, the default color is not guaranteed to be Qt::white.

Definition at line 295 of file colordialog.h.

Member Typedef Documentation

◆ ColorDialogOption

typedef QColorDialog::ColorDialogOption PerceptualColor::ColorDialog::ColorDialogOption

Local alias for QColorDialog::ColorDialogOption.

This type is declared as type to Qt’s type system via Q_DECLARE_METATYPE. Depending on your use case (for example if you want to use for queued signal-slot connections), you might consider calling qRegisterMetaType() for this type, once you have a QApplication object.

Definition at line 396 of file colordialog.h.

◆ ColorDialogOptions

typedef QColorDialog::ColorDialogOptions PerceptualColor::ColorDialog::ColorDialogOptions

Local alias for QColorDialog::ColorDialogOptions.

This type is declared as type to Qt’s type system via Q_DECLARE_METATYPE. Depending on your use case (for example if you want to use for queued signal-slot connections), you might consider calling qRegisterMetaType() for this type, once you have a QApplication object.

Definition at line 404 of file colordialog.h.

Member Enumeration Documentation

◆ DialogLayoutDimensions

enum class PerceptualColor::ColorDialog::DialogLayoutDimensions

strong

Layout dimensions.

This enum is declared to the meta-object system with Q_ENUM. This happens automatically. You do not need to make any manual calls.

This type is declared as type to Qt’s type system via Q_DECLARE_METATYPE. Depending on your use case (for example if you want to use for queued signal-slot connections), you might consider calling qRegisterMetaType() for this type, once you have a QApplication object.

Enumerator

ScreenSizeDependent

Decide automatically between collapsed and expanded layout: collapsed is used on small screens, and expanded on big screens.

The decision is based on the screen size of the default screen of the widget (see QGuiApplication::primaryScreen() for details). The decision is evaluated at the moment when setting this value, and again each time the widget is shown again. It is not evaluated again when a yet existing dialog is just moved to another screen.

Collapsed

Use the small, “collapsed“ layout of this dialog.

Expanded

Use the large, “expanded” layout of this dialog.

Definition at line 415 of file colordialog.h.

Property Documentation

◆ currentColor

QColor PerceptualColor::ColorDialog::currentColor

readwrite

Currently selected color in the dialog.

Invariant: This property is provided as an RGB value. QColor::isValid() is always true and QColor::spec() is always QColor::Spec::Rgb.; The signal currentColorChanged() is emitted always and only when the value of this property changes.

Note: The setter setCurrentColor() does not accept all QColor values. See its documentation for details.

See also: READ currentColor() const; WRITE setCurrentColor(); NOTIFY currentColorChanged()

Definition at line 320 of file colordialog.h.

◆ layoutDimensions

DialogLayoutDimensions PerceptualColor::ColorDialog::layoutDimensions

readwrite

Layout dimensions.

Defines if the dialog uses a rather collapsed (small) or a rather expanded (large) layout. In both cases, all elements are present. But for the collapsed variant, more elements are put in tab widgets, while for the expanded variant, more elements are visible at the same time.

collapsed

expanded

Default value:

When the layout dimension effectively changes, also the dialog size is adapted.

See also: DialogLayoutDimensions; READ layoutDimensions() const; WRITE setLayoutDimensions(); NOTIFY layoutDimensionsChanged

Definition at line 352 of file colordialog.h.

◆ options

ColorDialogOptions PerceptualColor::ColorDialog::options

readwrite

Various options that affect the look and feel of the dialog.

These are the same settings as for QColorDialog. For compatibility reasons, they are also of the same type: ColorDialogOptions

Option	Default value	Description
ShowAlphaChannel	false	Allow the user to select the alpha component of a color.
NoButtons	false	Don't display OK and Cancel buttons. (Useful for “live dialogs”.)
DontUseNativeDialog	true	Use Qt’s standard color dialog instead of the operating system native color dialog.

Invariant: The option ColorDialogOption::DontUseNativeDialog will always be true because it’s just the point of this library to provide an own, non-native dialog. (If you set ColorDialogOption::DontUseNativeDialog explicitly to false, this will silently be ignored, while the other options that you might have set, will be correctly applied.)

Example:

    auto myDialog = new PerceptualColor::ColorDialog();
    myDialog->setOption( //
        PerceptualColor::ColorDialog::ColorDialogOption::ShowAlphaChannel,
        false);

Or:

auto myDialog = new PerceptualColor::ColorDialog();

myDialog->setOption(QColorDialog::ShowAlphaChannel, false);

Note: At difference to QColorDialog, you need a fully qualified identifier for the enum values. The following code would therefore fail:
myDialog->setOption(ShowAlphaChannel, false);

See also: READ options() const; testOption(); WRITE setOptions(); setOption(); NOTIFY optionsChanged()

Definition at line 386 of file colordialog.h.

Constructor & Destructor Documentation

◆ ColorDialog() [1/4]

PerceptualColor::ColorDialog::ColorDialog ( QWidget * parent = nullptr )

explicit

Constructor.

Parameters

parent pointer to the parent widget, if any

Postcondition: The currentColor property is set to a default value.

Definition at line 1231 of file colordialog.cpp.

◆ ColorDialog() [2/4]

PerceptualColor::ColorDialog::ColorDialog	(	const QColor &	initial,
		QWidget *	parent = nullptr )

explicit

Constructor.

Parameters

initial	the initially chosen color of the dialog
parent	pointer to the parent widget, if any

Postcondition: The object is constructed and setCurrentColor() is called with initial. See setCurrentColor() for the modifications that will be applied before setting the current color. Especially, as this dialog is constructed by default without alpha support, the alpha channel of initial is ignored and a fully opaque color is used.

Definition at line 1249 of file colordialog.cpp.

◆ ColorDialog() [3/4]

PerceptualColor::ColorDialog::ColorDialog	(	const QSharedPointer< PerceptualColor::RgbColorSpace > &	colorSpace,
		QWidget *	parent = nullptr )

explicit

Constructor.

Parameters

colorSpace	The color space within which this widget should operate. Can be created with RgbColorSpaceFactory.
parent	pointer to the parent widget, if any

Postcondition: The currentColor property is set to a default value.

Definition at line 1268 of file colordialog.cpp.

◆ ColorDialog() [4/4]

PerceptualColor::ColorDialog::ColorDialog	(	const QSharedPointer< PerceptualColor::RgbColorSpace > &	colorSpace,
		const QColor &	initial,
		QWidget *	parent = nullptr )

explicit

Constructor.

Parameters

colorSpace	The color space within which this widget should operate. Can be created with RgbColorSpaceFactory.
initial	the initially chosen color of the dialog
parent	pointer to the parent widget, if any

Postcondition: The object is constructed and setCurrentColor() is called with initial. See setCurrentColor() for the modifications that will be applied before setting the current color. Especially, as this dialog is constructed by default without alpha support, the alpha channel of initial is ignored and a fully opaque color is used.

Definition at line 1288 of file colordialog.cpp.

◆ ~ColorDialog()

PerceptualColor::ColorDialog::~ColorDialog ( )

overridevirtualnoexcept

Destructor.

Definition at line 1302 of file colordialog.cpp.

Member Function Documentation

◆ changeEvent()

void PerceptualColor::ColorDialog::changeEvent ( QEvent * event )

overrideprotectedvirtual

Handle state changes.

Implements reaction on QEvent::LanguageChange.

Reimplemented from base class.

Parameters

event The event.

Reimplemented from QWidget.

Definition at line 2411 of file colordialog.cpp.

◆ colorSelected

void PerceptualColor::ColorDialog::colorSelected ( const QColor & color )

signal

This signal is emitted just after the user has clicked OK to select a color to use.

Parameters

color the chosen color

◆ currentColor()

QColor PerceptualColor::ColorDialog::currentColor ( ) const

Getter for property currentColor.

Returns: the property currentColor

Definition at line 1322 of file colordialog.cpp.

◆ currentColorChanged

void PerceptualColor::ColorDialog::currentColorChanged ( const QColor & color )

signal

Notify signal for property currentColor.

This signal is emitted whenever the “current color” changes in the dialog.

Parameters

color the new “current color”

◆ done()

void PerceptualColor::ColorDialog::done ( int result )

overrideprotectedvirtual

Various updates when closing the dialog.

Reimplemented from base class.

Parameters

result The result with which the dialog has been closed

Reimplemented from QDialog.

Definition at line 2272 of file colordialog.cpp.

◆ getColor() [1/2]

QColor PerceptualColor::ColorDialog::getColor	(	const QColor &	initial = Qt::white,
		QWidget *	parent = nullptr,
		const QString &	title = QString(),
		QColorDialog::ColorDialogOptions	options = ColorDialogOptions() )

static

Pops up a modal color dialog, lets the user choose a color, and returns that color.

Parameters

initial	initial value for currentColor()
parent	parent widget of the dialog (or 0 for no parent)
title	window title (or an empty string for the default window title)
options	the options() for customizing the look and feel of the dialog

Returns: selectedColor(): The color the user has selected; or an invalid color if the user has canceled the dialog.

Definition at line 2212 of file colordialog.cpp.

◆ getColor() [2/2]

QColor PerceptualColor::ColorDialog::getColor	(	const QSharedPointer< PerceptualColor::RgbColorSpace > &	colorSpace,
		const QColor &	initial = Qt::white,
		QWidget *	parent = nullptr,
		const QString &	title = QString(),
		QColorDialog::ColorDialogOptions	options = ColorDialogOptions() )

static

Pops up a modal color dialog, lets the user choose a color, and returns that color.

Parameters

colorSpace	The color space within which this widget should operate.
initial	initial value for currentColor()
parent	parent widget of the dialog (or 0 for no parent)
title	window title (or an empty string for the default window title)
options	the options() for customizing the look and feel of the dialog

Returns: selectedColor(): The color the user has selected; or an invalid color if the user has canceled the dialog.

Definition at line 2183 of file colordialog.cpp.

◆ layoutDimensions()

ColorDialog::DialogLayoutDimensions PerceptualColor::ColorDialog::layoutDimensions ( ) const

Getter for property layoutDimensions.

Returns: the property layoutDimensions

Definition at line 2299 of file colordialog.cpp.

◆ layoutDimensionsChanged

void PerceptualColor::ColorDialog::layoutDimensionsChanged ( const PerceptualColor::ColorDialog::DialogLayoutDimensions newLayoutDimensions )

signal

Notify signal for property layoutDimensions.

Parameters

newLayoutDimensions the new layout dimensions

◆ open() [1/2]

virtual void QDialog::open ( )

virtual

Reimplemented from QDialog.

◆ open() [2/2]

void PerceptualColor::ColorDialog::open	(	QObject *	receiver,
		const char *	member )

Opens the dialog and connects its colorSelected() signal to the slot specified by receiver and member.

The signal will be disconnected from the slot when the dialog is closed.

Example:

        PerceptualColor::ColorDialog *m_dialog = //
            new PerceptualColor::ColorDialog( //
                PerceptualColor::RgbColorSpaceFactory::createSrgb());
        m_dialog->open(this, SLOT(mySlot(QColor)));

Parameters

receiver	the object that will receive the colorSelected() signal
member	the slot that will receive the colorSelected() signal

Definition at line 1376 of file colordialog.cpp.

◆ options()

QColorDialog::ColorDialogOptions PerceptualColor::ColorDialog::options ( ) const

Getter for property KConfig Entry Options.

Returns: the current KConfig Entry Options

Definition at line 2109 of file colordialog.cpp.

◆ optionsChanged

void PerceptualColor::ColorDialog::optionsChanged ( const PerceptualColor::ColorDialog::ColorDialogOptions newOptions )

signal

Notify signal for property KConfig Entry Options.

Parameters

newOptions the new options

◆ selectedColor()

QColor PerceptualColor::ColorDialog::selectedColor ( ) const

The color that was actually selected by the user.

At difference to the currentColor property, this function provides the color that was actually selected by the user by clicking the OK button or pressing the return key or another equivalent action.

This function most useful to get the actually selected color after that the dialog has been closed.

When a dialog that had been closed or hidden is shown again, this function returns to an invalid QColor().

Returns: Just after showing the dialog, the value is an invalid QColor. If the user selects a color by clicking the OK button or another equivalent action, the value is the selected color. If the user cancels the dialog (Cancel button, or by pressing the Escape key), the value remains an invalid QColor.

Definition at line 2238 of file colordialog.cpp.

◆ setCurrentColor

void PerceptualColor::ColorDialog::setCurrentColor ( const QColor & color )

slot

Setter for currentColor property.

Parameters

color the new color

Postcondition

The property currentColor is adapted as follows:

If color is not valid, Qt::black is used instead.
If color’s QColor::Spec is not QColor::Spec::Rgb then it will be converted silently to QColor::Spec::Rgb
The RGB part of currentColor will be the RGB part of color.
The alpha channel of currentColor will be the alpha channel of color if at the moment of the function call the QColorDialog::ColorDialogOption::ShowAlphaChannel option is set. It will be fully opaque otherwise.

Definition at line 1344 of file colordialog.cpp.

◆ setLayoutDimensions

void PerceptualColor::ColorDialog::setLayoutDimensions ( const PerceptualColor::ColorDialog::DialogLayoutDimensions newLayoutDimensions )

slot

Setter for property layoutDimensions.

Parameters

newLayoutDimensions the new layout dimensions

Definition at line 2306 of file colordialog.cpp.

◆ setOption

void PerceptualColor::ColorDialog::setOption	(	PerceptualColor::ColorDialog::ColorDialogOption	option,
		bool	on = true )

slot

Setter for KConfig Entry Options.

Sets a value for just one single option within KConfig Entry Options.

Parameters

option	the option to set
on	the new value of the option

Definition at line 2119 of file colordialog.cpp.

◆ setOptions

void PerceptualColor::ColorDialog::setOptions ( PerceptualColor::ColorDialog::ColorDialogOptions newOptions )

slot

Setter for KConfig Entry Options.

Parameters

newOptions the new options

Postcondition: All options of the widget have the same state (enabled/disabled) as in the given parameter.

Definition at line 2130 of file colordialog.cpp.

◆ setVisible()

void PerceptualColor::ColorDialog::setVisible ( bool visible )

overridevirtual

Setter for property visible

Reimplemented from base class.

When a dialog, that wasn't formerly visible, gets visible, it’s selectedColor value is cleared.

Parameters

visible holds whether or not the dialog should be visible

Reimplemented from QDialog.

Definition at line 2251 of file colordialog.cpp.

◆ showEvent()

void PerceptualColor::ColorDialog::showEvent ( QShowEvent * event )

overrideprotectedvirtual

Handle show events.

Reimplemented from base class.

Parameters

event The event.

Reimplemented from QDialog.

Definition at line 2458 of file colordialog.cpp.

◆ testOption()

bool PerceptualColor::ColorDialog::testOption ( PerceptualColor::ColorDialog::ColorDialogOption option ) const

Getter for KConfig Entry Options.

Gets the value of just one single option within KConfig Entry Options.

Parameters

option the requested option

Returns: the value of the requested option

Definition at line 2166 of file colordialog.cpp.

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

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About Perceptual Color

PerceptualColor::ColorDialog

Public Types

Properties

Signals

Public Slots

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ ColorDialogOption

◆ ColorDialogOptions

Member Enumeration Documentation

◆ DialogLayoutDimensions

Property Documentation

◆ currentColor

◆ layoutDimensions

◆ options

Constructor & Destructor Documentation

◆ ColorDialog() [1/4]

◆ ColorDialog() [2/4]

◆ ColorDialog() [3/4]

◆ ColorDialog() [4/4]

◆ ~ColorDialog()

Member Function Documentation

◆ changeEvent()

◆ colorSelected

◆ currentColor()

◆ currentColorChanged

◆ done()

◆ getColor() [1/2]

◆ getColor() [2/2]

◆ layoutDimensions()

◆ layoutDimensionsChanged

◆ open() [1/2]

◆ open() [2/2]

◆ options()

◆ optionsChanged

◆ selectedColor()

◆ setCurrentColor

◆ setLayoutDimensions

◆ setOption

◆ setOptions

◆ setVisible()

◆ showEvent()

◆ testOption()