PerceptualColor::GradientSlider

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PerceptualColor::GradientSlider Class Reference

#include <gradientslider.h>

Inheritance diagram for PerceptualColor::GradientSlider:

Properties

PerceptualColor::LchaDouble firstColor
 
Qt::Orientation orientation
 
qreal pageStep
 
PerceptualColor::LchaDouble secondColor
 
qreal singleStep
 
qreal value
 
- 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 firstColorChanged (const PerceptualColor::LchaDouble &newFirstColor)
 
void orientationChanged (const Qt::Orientation newOrientation)
 
void pageStepChanged (const qreal newPageStep)
 
void secondColorChanged (const PerceptualColor::LchaDouble &newSecondColor)
 
void singleStepChanged (const qreal newSingleStep)
 
void valueChanged (const qreal newValue)
 

Public Slots

void setColors (const PerceptualColor::LchaDouble &newFirstColor, const PerceptualColor::LchaDouble &newSecondColor)
 
void setFirstColor (const PerceptualColor::LchaDouble &newFirstColor)
 
void setOrientation (const Qt::Orientation newOrientation)
 
void setPageStep (const qreal newPageStep)
 
void setSecondColor (const PerceptualColor::LchaDouble &newSecondColor)
 
void setSingleStep (const qreal newSingleStep)
 
void setValue (const qreal newValue)
 

Public Member Functions

Q_INVOKABLE GradientSlider (const QSharedPointer< PerceptualColor::RgbColorSpace > &colorSpace, Qt::Orientation orientation, QWidget *parent=nullptr)
 
Q_INVOKABLE GradientSlider (const QSharedPointer< PerceptualColor::RgbColorSpace > &colorSpace, QWidget *parent=nullptr)
 
virtual ~GradientSlider () noexcept override
 
PerceptualColor::LchaDouble firstColor () const
 
virtual QSize minimumSizeHint () const override
 
Qt::Orientation orientation () const
 
qreal pageStep () const
 
PerceptualColor::LchaDouble secondColor () const
 
qreal singleStep () const
 
virtual QSize sizeHint () const override
 
qreal value () const
 
- Public Member Functions inherited from PerceptualColor::AbstractDiagram
Q_INVOKABLE AbstractDiagram (QWidget *parent=nullptr)
 
virtual ~AbstractDiagram () noexcept 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 ()
 
void addAction (QAction *action)
 
void addActions (QList< QAction * > actions)
 
void adjustSize ()
 
bool autoFillBackground () const const
 
QPalette::ColorRole backgroundRole () const const
 
QBackingStorebackingStore () const const
 
QSize baseSize () const const
 
QWidgetchildAt (const QPoint &p) const const
 
QWidgetchildAt (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
 
QWidgetfocusProxy () const const
 
QWidgetfocusWidget () const const
 
const QFontfont () const const
 
QFontInfo fontInfo () const const
 
QFontMetrics fontMetrics () const const
 
QPalette::ColorRole foregroundRole () const const
 
QRect frameGeometry () const const
 
QSize frameSize () const const
 
const QRectgeometry () const const
 
void getContentsMargins (int *left, int *top, int *right, int *bottom) 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)
 
QGraphicsEffectgraphicsEffect () const const
 
QGraphicsProxyWidgetgraphicsProxyWidget () 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, 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 isEnabledToTLW () 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
 
QLayoutlayout () const const
 
Qt::LayoutDirection layoutDirection () const const
 
QLocale locale () const const
 
void lower ()
 
QPoint mapFrom (const QWidget *parent, const QPoint &pos) const const
 
QPoint mapFromGlobal (const QPoint &pos) const const
 
QPoint mapFromParent (const QPoint &pos) const const
 
QPoint mapTo (const QWidget *parent, const QPoint &pos) const const
 
QPoint mapToGlobal (const QPoint &pos) const const
 
QPoint mapToParent (const QPoint &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)
 
QWidgetnativeParentWidget () const const
 
QWidgetnextInFocusChain () const const
 
QRect normalGeometry () const const
 
void overrideWindowFlags (Qt::WindowFlags flags)
 
virtual QPaintEnginepaintEngine () const const override
 
const QPalettepalette () const const
 
QWidgetparentWidget () const const
 
QPoint pos () const const
 
QWidgetpreviousInFocusChain () 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, QWidget::RenderFlags renderFlags)
 
void render (QPainter *painter, const QPoint &targetOffset, const QRegion &sourceRegion, QWidget::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
 
QScreenscreen () 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 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)
 
virtual void setVisible (bool visible)
 
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
 
QStylestyle () const const
 
QString styleSheet () const const
 
bool testAttribute (Qt::WidgetAttribute attribute) const const
 
QString toolTip () const const
 
int toolTipDuration () const const
 
QWidgettopLevelWidget () 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
 
QWidgetwindow () const const
 
QString windowFilePath () const const
 
Qt::WindowFlags windowFlags () const const
 
QWindowwindowHandle () 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)
 
bool blockSignals (bool block)
 
const QObjectListchildren () 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 ()
 
void dumpObjectInfo () const const
 
void dumpObjectTree ()
 
void dumpObjectTree () const const
 
QList< QByteArraydynamicPropertyNames () const const
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
findChild (const QString &name, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QRegExp &regExp, 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
 
bool inherits (const char *className) const const
 
void installEventFilter (QObject *filterObj)
 
bool isWidgetType () const const
 
bool isWindowType () const const
 
void killTimer (int id)
 
virtual const QMetaObjectmetaObject () const const
 
void moveToThread (QThread *targetThread)
 
QString objectName () const const
 
void objectNameChanged (const QString &objectName)
 
QObjectparent () const const
 
QVariant property (const char *name) const const
 
 Q_CLASSINFO (Name, Value)
 
 Q_DISABLE_COPY (Class)
 
 Q_DISABLE_COPY_MOVE (Class)
 
 Q_DISABLE_MOVE (Class)
 
 Q_EMIT Q_EMIT
 
 Q_ENUM (...)
 
 Q_ENUM_NS (...)
 
 Q_ENUMS (...)
 
 Q_FLAG (...)
 
 Q_FLAG_NS (...)
 
 Q_FLAGS (...)
 
 Q_GADGET Q_GADGET
 
 Q_INTERFACES (...)
 
 Q_INVOKABLE Q_INVOKABLE
 
 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
 
qFindChild (const QObject *obj, const QString &name)
 
QList< T > qFindChildren (const QObject *obj, const QRegExp &regExp)
 
QList< T > qFindChildren (const QObject *obj, const QString &name)
 
qobject_cast (const QObject *object)
 
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 setParent (QObject *parent)
 
bool setProperty (const char *name, const QVariant &value)
 
bool signalsBlocked () const const
 
int startTimer (int interval, Qt::TimerType timerType)
 
int startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
 
QThreadthread () const const
 
- Public Member Functions inherited from QPaintDevice
int colorCount () const const
 
int depth () const const
 
int 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
 

Protected Member Functions

virtual void keyPressEvent (QKeyEvent *event) override
 
virtual void mouseMoveEvent (QMouseEvent *event) override
 
virtual void mousePressEvent (QMouseEvent *event) override
 
virtual void mouseReleaseEvent (QMouseEvent *event) override
 
virtual void paintEvent (QPaintEvent *event) override
 
virtual void resizeEvent (QResizeEvent *event) override
 
virtual void wheelEvent (QWheelEvent *event) override
 
- Protected Member Functions inherited from PerceptualColor::AbstractDiagram
virtual void actualVisibilityToggledEvent ()
 
void callUpdate ()
 
QColor focusIndicatorColor () const
 
int gradientMinimumLength () const
 
int gradientThickness () const
 
QColor handleColorFromBackgroundLightness (qreal lightness) const
 
int handleOutlineThickness () const
 
qreal handleRadius () const
 
virtual void hideEvent (QHideEvent *event) override
 
bool isActuallyVisible () const
 
int maximumPhysicalSquareSize () const
 
qreal maximumWidgetSquareSize () const
 
QSize physicalPixelSize () const
 
virtual void showEvent (QShowEvent *event) override
 
int spaceForFocusIndicator () const
 
QImage transparencyBackground () const
 
- Protected Member Functions inherited from QWidget
virtual void actionEvent (QActionEvent *event)
 
virtual void changeEvent (QEvent *event)
 
virtual void closeEvent (QCloseEvent *event)
 
virtual void contextMenuEvent (QContextMenuEvent *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 (QEvent *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 initPainter (QPainter *painter) const const override
 
virtual void inputMethodEvent (QInputMethodEvent *event)
 
virtual void keyReleaseEvent (QKeyEvent *event)
 
virtual void leaveEvent (QEvent *event)
 
virtual int metric (QPaintDevice::PaintDeviceMetric m) const const override
 
virtual void mouseDoubleClickEvent (QMouseEvent *event)
 
virtual void moveEvent (QMoveEvent *event)
 
virtual bool nativeEvent (const QByteArray &eventType, void *message, long *result)
 
virtual void tabletEvent (QTabletEvent *event)
 
void updateMicroFocus ()
 
- 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
 
QObjectsender () const const
 
int senderSignalIndex () const const
 
virtual void timerEvent (QTimerEvent *event)
 

Additional Inherited Members

- Public Types inherited from QWidget
enum  RenderFlag
 
- Public Types inherited from QPaintDevice
enum  PaintDeviceMetric
 
- Static Public Member Functions inherited from QWidget
QWidgetcreateWindowContainer (QWindow *window, QWidget *parent, Qt::WindowFlags flags)
 
QWidgetfind (WId id)
 
QWidgetkeyboardGrabber ()
 
QWidgetmouseGrabber ()
 
void setTabOrder (QWidget *first, QWidget *second)
 
- 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)
 
QString trUtf8 (const char *sourceText, const char *disambiguation, int n)
 
- 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 slider who’s groove displays an LCH color gradient.

GradientSlider

The groove of this slider that displays a gradient between two LCH colors. The gradient is an equal gradient calculated independently for each of the four components (lightness, chroma, hue, alpha).

The hue component is the only one that is circular (0° = 360°): Here, Here, the path via the shorter side is always chosen. Examples:

  • If the first hue is 182° and the second hue is 1°, than the hue will increase from 182° up to 359°, than 0° and then 1°.
  • If the first hue is 169° and the second hue is 359°, than the hue will decrease from 169° down to 0°, and then 359°.

This widget considers the alpha channel, using a background of gray squares behind the (semi-)transparent colors.

Example:

L C h alpha
firstColor 80% 5 15° 0.7
70% 7 0.8
60% 9 355° 0.9
secondColor 50% 11 345° 1.0

Note that due to this mathematical model, there might be out-of-gamut colors within the slider even if both, the first and the second color are in-gamut colors. Out-of-gamut colors are rendered as nearby in-gamut colors.

  • In the case of vertical orientation, firstColor is the colour at the bottom of the widget and secondColor is the colour at the top of the widget.
  • In the case of horizontal orientation, firstColor is the colour on the left of the widget and secondColor is the colour on the right of the widget in LTR layout. In RTL layout it is the other way round.

Definition at line 100 of file gradientslider.h.

Property Documentation

◆ firstColor

LchaDouble PerceptualColor::GradientSlider::firstColor
readwrite

First color (the one corresponding to a low value)

See also
READ firstColor() const
WRITE setFirstColor()
NOTIFY firstColorChanged()
secondColor

Definition at line 110 of file gradientslider.h.

◆ orientation

Qt::Orientation PerceptualColor::GradientSlider::orientation
readwrite

Orientation of the widget.

By default, the orientation is horizontal. The possible orientations are Qt::Horizontal and Qt::Vertical.

Also, Qt::Orientation is declared in this header as type to Qt’s type system: Q_DECLARE_METATYPE(Qt::Orientation). This is done because Qt itself does not declare this type as meta type. Because we use it here in a property including a signal, we have to declare this type. Depending on your use case (for example if you want to use it reliably in Qt’s signals and slots), you might consider calling qRegisterMetaType() for this type, once you have a QApplication object.

See also
READ orientation() const
WRITE setOrientation()
NOTIFY orientationChanged()

Definition at line 129 of file gradientslider.h.

◆ pageStep

qreal PerceptualColor::GradientSlider::pageStep
readwrite

This property holds the page step.

The larger of two natural steps this widget provides. Corresponds to the user pressing PageUp or PageDown.

The valid range is [0, 1].

See also
READ pageStep() const
WRITE setPageStep()
NOTIFY pageStepChanged()
singleStep

Definition at line 142 of file gradientslider.h.

◆ secondColor

LchaDouble PerceptualColor::GradientSlider::secondColor
readwrite

Second color (the one corresponding to a high value)

See also
READ secondColor() const
WRITE setSecondColor()
NOTIFY secondColorChanged()
firstColor

Definition at line 150 of file gradientslider.h.

◆ singleStep

qreal PerceptualColor::GradientSlider::singleStep
readwrite

This property holds the single step.

The smaller of two natural steps this widget provides. Corresponds to the user pressing an arrow key.

The valid range is [0, 1].

See also
READ singleStep() const
WRITE setSingleStep()
NOTIFY singleStepChanged()
pageStep

Definition at line 163 of file gradientslider.h.

◆ value

qreal PerceptualColor::GradientSlider::value
readwrite

The slider’s current value.

The valid range is [0, 1]. The slider forces the value to be within the valid range: 0 <= value <= 1.

See also
READ value() const
WRITE setValue()
NOTIFY valueChanged()

Definition at line 177 of file gradientslider.h.

Constructor & Destructor Documentation

◆ GradientSlider() [1/2]

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

Constructs a vertical slider.

Parameters
colorSpaceThe color space within which this widget should operate. Can be created with RgbColorSpaceFactory. Can be created with RgbColorSpaceFactory.
parentparent widget (if any)

Definition at line 35 of file gradientslider.cpp.

◆ GradientSlider() [2/2]

PerceptualColor::GradientSlider::GradientSlider ( const QSharedPointer< PerceptualColor::RgbColorSpace > &  colorSpace,
Qt::Orientation  orientation,
QWidget parent = nullptr 
)
explicit

Constructs a slider.

Parameters
colorSpaceThe color space within which this widget should operate. Can be created with RgbColorSpaceFactory.
orientationThe orientation parameter determines whether the slider is horizontal or vertical; the valid values are Qt::Vertical and Qt::Horizontal.
parentparent widget (if any)

Definition at line 49 of file gradientslider.cpp.

◆ ~GradientSlider()

PerceptualColor::GradientSlider::~GradientSlider ( )
overridevirtualnoexcept

Default destructor.

Definition at line 57 of file gradientslider.cpp.

Member Function Documentation

◆ firstColor()

PerceptualColor::LchaDouble PerceptualColor::GradientSlider::firstColor ( ) const

Getter for property firstColor.

Returns
the property

◆ firstColorChanged

void PerceptualColor::GradientSlider::firstColorChanged ( const PerceptualColor::LchaDouble newFirstColor)
signal

Signal for firstColor property.

Parameters
newFirstColorthe new firstColor

◆ keyPressEvent()

void PerceptualColor::GradientSlider::keyPressEvent ( QKeyEvent event)
overrideprotectedvirtual

React on key press events.

Reimplemented from base class.

The user can change the value of this widget by the following key strokes:

Parameters
eventthe event

Reimplemented from QWidget.

Definition at line 355 of file gradientslider.cpp.

◆ minimumSizeHint()

QSize PerceptualColor::GradientSlider::minimumSizeHint ( ) const
overridevirtual

Recommended minimum size for the widget.

Reimplemented from base class.

Returns
Recommended minimum size for the widget.
See also
minimumSizeHint()

Reimplemented from QWidget.

Definition at line 206 of file gradientslider.cpp.

◆ mouseMoveEvent()

void PerceptualColor::GradientSlider::mouseMoveEvent ( QMouseEvent event)
overrideprotectedvirtual

React on a mouse move event.

Reimplemented from base class.

Parameters
eventThe corresponding mouse event

Reimplemented from QWidget.

Definition at line 307 of file gradientslider.cpp.

◆ mousePressEvent()

void PerceptualColor::GradientSlider::mousePressEvent ( QMouseEvent event)
overrideprotectedvirtual

React on a mouse press event.

Reimplemented from base class.

Parameters
eventThe corresponding mouse event

Reimplemented from QWidget.

Definition at line 287 of file gradientslider.cpp.

◆ mouseReleaseEvent()

void PerceptualColor::GradientSlider::mouseReleaseEvent ( QMouseEvent event)
overrideprotectedvirtual

React on a mouse release event.

Reimplemented from base class.

Parameters
eventThe corresponding mouse event

Reimplemented from QWidget.

Definition at line 297 of file gradientslider.cpp.

◆ orientation()

Qt::Orientation PerceptualColor::GradientSlider::orientation ( ) const

Getter for property orientation.

Returns
the property

◆ orientationChanged

void PerceptualColor::GradientSlider::orientationChanged ( const Qt::Orientation  newOrientation)
signal

Signal for orientation property.

Parameters
newOrientationthe new orientation

◆ pageStep()

qreal PerceptualColor::GradientSlider::pageStep ( ) const

Getter for property pageStep.

Returns
the property

◆ pageStepChanged

void PerceptualColor::GradientSlider::pageStepChanged ( const qreal  newPageStep)
signal

Signal for pageStep property.

Parameters
newPageStepthe new pageStep

◆ paintEvent()

void PerceptualColor::GradientSlider::paintEvent ( QPaintEvent event)
overrideprotectedvirtual

Paint the widget.

Reimplemented from base class.

Parameters
eventthe paint event

Reimplemented from QWidget.

Definition at line 526 of file gradientslider.cpp.

◆ resizeEvent()

void PerceptualColor::GradientSlider::resizeEvent ( QResizeEvent event)
overrideprotectedvirtual

React on a resize event.

Reimplemented from base class.

Parameters
eventThe corresponding resize event

Reimplemented from QWidget.

Definition at line 165 of file gradientslider.cpp.

◆ secondColor()

PerceptualColor::LchaDouble PerceptualColor::GradientSlider::secondColor ( ) const

Getter for property secondColor.

Returns
the property

◆ secondColorChanged

void PerceptualColor::GradientSlider::secondColorChanged ( const PerceptualColor::LchaDouble newSecondColor)
signal

Signal for secondColor property.

Parameters
newSecondColorthe new secondColor

◆ setColors

void PerceptualColor::GradientSlider::setColors ( const PerceptualColor::LchaDouble newFirstColor,
const PerceptualColor::LchaDouble newSecondColor 
)
slot

Setter for both, firstColor property and secondColor property.

Parameters
newFirstColorthe new firstColor
newSecondColorthe new secondColor

Definition at line 153 of file gradientslider.cpp.

◆ setFirstColor

void PerceptualColor::GradientSlider::setFirstColor ( const PerceptualColor::LchaDouble newFirstColor)
slot

Setter for firstColor property.

Parameters
newFirstColorthe new firstColor

Definition at line 114 of file gradientslider.cpp.

◆ setOrientation

void PerceptualColor::GradientSlider::setOrientation ( const Qt::Orientation  newOrientation)
slot

Setter for orientation property.

Parameters
newOrientationthe new orientation.

Definition at line 445 of file gradientslider.cpp.

◆ setPageStep

void PerceptualColor::GradientSlider::setPageStep ( const qreal  newPageStep)
slot

Setter for pageStep property.

Parameters
newPageStepthe new pageStep. Is bound to the valid range of the property.

Definition at line 251 of file gradientslider.cpp.

◆ setSecondColor

void PerceptualColor::GradientSlider::setSecondColor ( const PerceptualColor::LchaDouble newSecondColor)
slot

Setter for secondColor property.

Parameters
newSecondColorthe new secondColor

Definition at line 136 of file gradientslider.cpp.

◆ setSingleStep

void PerceptualColor::GradientSlider::setSingleStep ( const qreal  newSingleStep)
slot

Setter for singleStep property.

Parameters
newSingleStepthe new singleStep. Is bound to the valid range of the property.

Definition at line 230 of file gradientslider.cpp.

◆ setValue

void PerceptualColor::GradientSlider::setValue ( const qreal  newValue)
slot

Setter for value property.

Parameters
newValuethe new value. Is bound to the valid range of the property.

Definition at line 272 of file gradientslider.cpp.

◆ singleStep()

qreal PerceptualColor::GradientSlider::singleStep ( ) const

Getter for property singleStep.

Returns
the property

◆ singleStepChanged

void PerceptualColor::GradientSlider::singleStepChanged ( const qreal  newSingleStep)
signal

Signal for singleStep property.

Parameters
newSingleStepthe new singleStep

◆ sizeHint()

QSize PerceptualColor::GradientSlider::sizeHint ( ) const
overridevirtual

Recommended size for the widget.

Reimplemented from base class.

Returns
Recommended size for the widget.
See also
sizeHint()

Reimplemented from QWidget.

Definition at line 186 of file gradientslider.cpp.

◆ value()

qreal PerceptualColor::GradientSlider::value ( ) const

Getter for property value.

Returns
the property

◆ valueChanged

void PerceptualColor::GradientSlider::valueChanged ( const qreal  newValue)
signal

Signal for value property.

Parameters
newValuethe new value

◆ wheelEvent()

void PerceptualColor::GradientSlider::wheelEvent ( QWheelEvent event)
overrideprotectedvirtual

React on a mouse wheel event.

Reimplemented from base class.

Parameters
eventThe corresponding mouse event

Reimplemented from QWidget.

Definition at line 317 of file gradientslider.cpp.


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