PerceptualColor::AbstractDiagram

Search for usage in LXR

PerceptualColor::AbstractDiagram Class Reference

#include <abstractdiagram.h>

Inheritance diagram for PerceptualColor::AbstractDiagram:

Public Member Functions

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 ()
 
QActionaddAction (const QIcon &icon, const QString &text)
 
QActionaddAction (const QIcon &icon, const QString &text, Args &&... args)
 
QActionaddAction (const QIcon &icon, const QString &text, const QKeySequence &shortcut)
 
QActionaddAction (const QIcon &icon, const QString &text, const QKeySequence &shortcut, Args &&... args)
 
QActionaddAction (const QIcon &icon, const QString &text, const QKeySequence &shortcut, const QObject *receiver, const char *member, Qt::ConnectionType type)
 
QActionaddAction (const QIcon &icon, const QString &text, const QObject *receiver, const char *member, Qt::ConnectionType type)
 
QActionaddAction (const QString &text)
 
QActionaddAction (const QString &text, Args &&... args)
 
QActionaddAction (const QString &text, const QKeySequence &shortcut)
 
QActionaddAction (const QString &text, const QKeySequence &shortcut, Args &&... args)
 
QActionaddAction (const QString &text, const QKeySequence &shortcut, const QObject *receiver, const char *member, Qt::ConnectionType type)
 
QActionaddAction (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
 
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
 
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, 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
 
QLayoutlayout () 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
 
virtual QSize minimumSizeHint () 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, 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
 
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 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)
 
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
 
virtual QSize sizeHint () 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)
 
QBindable< QStringbindableObjectName ()
 
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 () const const
 
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 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 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_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
 
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 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)
 
QThreadthread () 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
 

Protected Member Functions

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 (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 initPainter (QPainter *painter) const const override
 
virtual void inputMethodEvent (QInputMethodEvent *event)
 
virtual void keyPressEvent (QKeyEvent *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 resizeEvent (QResizeEvent *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
 
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
 
- 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
 
- 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)
 
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)
 
- 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

Base class for LCH diagrams.

Provides some elements that are common for all LCH diagrams in this library.

Definition at line 58 of file abstractdiagram.h.

Constructor & Destructor Documentation

◆ AbstractDiagram()

PerceptualColor::AbstractDiagram::AbstractDiagram ( QWidget * parent = nullptr)
explicit

The constructor.

Parameters
parentThe widget’s parent widget. This parameter will be passed to the base class’s constructor.

Definition at line 28 of file abstractdiagram.cpp.

◆ ~AbstractDiagram()

PerceptualColor::AbstractDiagram::~AbstractDiagram ( )
overridevirtualnoexcept

Default destructor.

Destructor.

Definition at line 35 of file abstractdiagram.cpp.

Member Function Documentation

◆ actualVisibilityToggledEvent()

void PerceptualColor::AbstractDiagram::actualVisibilityToggledEvent ( )
protectedvirtual

Event occurring after isActuallyVisible has been toggled.

This function is called if and only if isActuallyVisible has actually been toggled.

Definition at line 275 of file abstractdiagram.cpp.

◆ callUpdate()

void PerceptualColor::AbstractDiagram::callUpdate ( )
protected

An alternative to QWidget::update().

It’s a workaround that avoids trouble with overload resolution.

Connecting a signal to the slot QWidget::update() is surprisingly difficult, at least if you want to use the functor syntax (which provides compile-time checks) for the connection. A simple connection fails to compile because it fails to do a correct overload resolution, as there is more than one slot called update. Now, qOverload<>() can be used to choose the correct overload, but in this special case, qOverload<>() generates compiler warnings.

Instead of connecting to QWidget::update() directly, simply connect to this slot instead. It calls the actual QWidget::update(), but avoids the annoyance with the overload resolution

Definition at line 335 of file abstractdiagram.cpp.

◆ focusIndicatorColor()

QColor PerceptualColor::AbstractDiagram::focusIndicatorColor ( ) const
protected

The color for painting focus indicators.

Returns
The color for painting focus indicators. This color is based on the current widget style at the moment this function is called. The value might therefore be different on the next function call, if the widget style has been switched by the user in the meantime.
Note
As there is no build-in support in Qt to get this information, we have to do some best guess, which might go wrong on some styles.

Definition at line 46 of file abstractdiagram.cpp.

◆ gradientMinimumLength()

int PerceptualColor::AbstractDiagram::gradientMinimumLength ( ) const
protected

The minimum length of a color gradient.

This is the minimum length of a one-dimensional gradient, for example in a slider or a color wheel. This is also the minimum width and minimum height of two-dimensional gradients.

Returns
The length of a gradient, measured in device-independent pixels.
See also
gradientThickness()

Definition at line 209 of file abstractdiagram.cpp.

◆ gradientThickness()

int PerceptualColor::AbstractDiagram::gradientThickness ( ) const
protected

The thickness of a color gradient.

This is the thickness of a one-dimensional gradient, for example in a slider or a color wheel.

Returns
The thickness of a slider or a color wheel, measured in device-independent pixels.
See also
gradientMinimumLength()

Definition at line 184 of file abstractdiagram.cpp.

◆ handleColorFromBackgroundLightness()

QColor PerceptualColor::AbstractDiagram::handleColorFromBackgroundLightness ( qreal lightness) const
protected

An appropriate color for a handle, depending on the background lightness.

Parameters
lightnessThe background lightness. Valid range: [0, 100].
Returns
An appropriate color for a handle. This color will provide contrast to the background.

Definition at line 244 of file abstractdiagram.cpp.

◆ handleOutlineThickness()

int PerceptualColor::AbstractDiagram::handleOutlineThickness ( ) const
protected

The outline thickness of a handle.

Returns
The outline thickness of a (either circular or linear) handle. Measured in device-independent pixels.
Note
The return value is constant. For a given object instance, this function returns the same value every time it is called. This constant value may be different for different instances of the object.

Definition at line 156 of file abstractdiagram.cpp.

◆ handleRadius()

qreal PerceptualColor::AbstractDiagram::handleRadius ( ) const
protected

The radius of a circular handle.

Returns
The radius of a circular handle, measured in device-independent pixels.
Note
The return value is constant. For a given object instance, this function returns the same value every time it is called. This constant value may be different for different instances of the object.

Definition at line 167 of file abstractdiagram.cpp.

◆ hideEvent()

void PerceptualColor::AbstractDiagram::hideEvent ( QHideEvent * event)
overrideprotectedvirtual

React on a hide event.

Reimplemented from base class.

Parameters
eventThe hide event.

Reimplemented from QWidget.

Definition at line 306 of file abstractdiagram.cpp.

◆ isActuallyVisible()

bool PerceptualColor::AbstractDiagram::isActuallyVisible ( ) const
protected

If this widget is actually visible.

Unlike QWidget::isVisible, minimized windows are not considered visible.

Changes can be observed with AbstractDiagram::actualVisibilityToggledEvent.

Returns
If this widget is actually visible.

Definition at line 266 of file abstractdiagram.cpp.

◆ maximumPhysicalSquareSize()

int PerceptualColor::AbstractDiagram::maximumPhysicalSquareSize ( ) const
protected

The maximum possible size of a square within the widget, measured in physical pixels.

This is the shorter value of width and height of the widget.

Returns
The maximum possible size of a square within the widget, measured in physical pixels. Both, width and height are guaranteed to be ≥ 0.
See also
maximumWidgetSquareSize

Definition at line 103 of file abstractdiagram.cpp.

◆ maximumWidgetSquareSize()

qreal PerceptualColor::AbstractDiagram::maximumWidgetSquareSize ( ) const
protected

The maximum possible size of a square within the widget, measured in device-independent pixels.

This is the conversion of maximumPhysicalSquareSize to the unit device-independent pixels. It might be smaller than the shortest value of QWidget::width() and QWidget::height() because maximumPhysicalSquareSize might have rounded down.

Returns
The maximum possible size of a square within the widget, measured in device-independent pixels.

Definition at line 119 of file abstractdiagram.cpp.

◆ physicalPixelSize()

QSize PerceptualColor::AbstractDiagram::physicalPixelSize ( ) const
protected

The rounded size of the widget measured in physical pixels.

Returns
The rounded size of this widget, measured in physical pixels, based on QPaintDevice::devicePixelRatioF(). This is the recommended image size for calling QPainter::drawImage() during a paint event. Both, width and height are guaranteed to be ≥ 0.

Example: You want to prepare a QImage of the hole widget to be used in QWidget::paintEvent(). To make sure a crisp rendering, you have to

Note
If QPaintDevice::devicePixelRatioF() is not an integer, the result of this function is rounded down. Qt’s widget geometry code has no documentation about how this is handled. However, Qt seems to round up starting with 0.5, at least on Linux/X11. But there are a few themes (for example the “Kvantum style engine” with the style “MildGradientKvantum”) that seem to round down: This becomes visible, as the corresponding last physical pixels are not automatically redrawn before executing the paintEvent() code. To avoid relying on undocumented behaviour and to avoid known problems with some styles, this function is conservative and always rounds down.

Definition at line 80 of file abstractdiagram.cpp.

◆ showEvent()

void PerceptualColor::AbstractDiagram::showEvent ( QShowEvent * event)
overrideprotectedvirtual

React on a show event.

Reimplemented from base class.

Parameters
eventThe show event.

Reimplemented from QWidget.

Definition at line 288 of file abstractdiagram.cpp.

◆ spaceForFocusIndicator()

int PerceptualColor::AbstractDiagram::spaceForFocusIndicator ( ) const
protected

The empty space around diagrams reserved for the focus indicator.

Measured in device-independent pixels.

Returns
The empty space around diagrams reserved for the focus indicator.

Definition at line 231 of file abstractdiagram.cpp.

◆ transparencyBackground()

QImage PerceptualColor::AbstractDiagram::transparencyBackground ( ) const
protected

Background for semi-transparent colors.

When showing a semi-transparent color, there has to be a background on which it is shown. This function provides a suitable background for showcasing a color.

Example code (to use within a class that inherits from PerceptualColor::AbstractDiagram):

// Within a class derived from AbstractDiagram, you can use this code:
QPainter myPainter(&myImage);
// Fill the hole image with tiles made of transparencyBackground()
myPainter.fillRect(0,
0,
150,
200,
// During painting, QBrush will ignore the
// device pixel ratio of the underlying
// transparencyBackground image!
// Paint semi-transparent red color above
myPainter.fillRect(0, 0, 150, 200, QBrush(QColor(255, 0, 0, 128)));
Returns
An image of a mosaic of neutral gray rectangles of different lightness. You can use this as tiles to paint a background.
Note
The image is considering QWidget::devicePixelRatioF() to deliver crisp (correctly scaled) images also for high-DPI devices. The painting does not use floating point drawing, but rounds to full integers. Therefore, the result is always a sharp image. This function takes care that each square has the same physical pixel size, without scaling errors or anti-aliasing errors.

Definition at line 147 of file abstractdiagram.cpp.


The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
Generated on Fri May 17 2024 11:47:51 by doxygen 1.10.0 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.