QCPItemPixmap

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Inheritance diagram for QCPItemPixmap:

Public Member Functions

 QCPItemPixmap (QCustomPlot *parentPlot)
 
Qt::AspectRatioMode aspectRatioMode () const
 
QPen pen () const
 
QPixmap pixmap () const
 
bool scaled () const
 
QPen selectedPen () const
 
virtual double selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=nullptr) const override
 
void setPen (const QPen &pen)
 
void setPixmap (const QPixmap &pixmap)
 
void setScaled (bool scaled, Qt::AspectRatioMode aspectRatioMode=Qt::KeepAspectRatio, Qt::TransformationMode transformationMode=Qt::SmoothTransformation)
 
void setSelectedPen (const QPen &pen)
 
Qt::TransformationMode transformationMode () const
 
- Public Member Functions inherited from QCPAbstractItem
 QCPAbstractItem (QCustomPlot *parentPlot)
 
QCPItemAnchoranchor (const QString &name) const
 
QList< QCPItemAnchor * > anchors () const
 
QCPAxisRectclipAxisRect () const
 
bool clipToAxisRect () const
 
bool hasAnchor (const QString &name) const
 
QCPItemPositionposition (const QString &name) const
 
QList< QCPItemPosition * > positions () const
 
bool selectable () const
 
bool selected () const
 
void setClipAxisRect (QCPAxisRect *rect)
 
void setClipToAxisRect (bool clip)
 
Q_SLOT void setSelectable (bool selectable)
 
Q_SLOT void setSelected (bool selected)
 
- Public Member Functions inherited from QCPLayerable
 QCPLayerable (QCustomPlot *plot, QString targetLayer=QString(), QCPLayerable *parentLayerable=nullptr)
 
bool antialiased () const
 
QCPLayerlayer () const
 
QCPLayerableparentLayerable () const
 
QCustomPlotparentPlot () const
 
bool realVisibility () const
 
void setAntialiased (bool enabled)
 
bool setLayer (const QString &layerName)
 
Q_SLOT bool setLayer (QCPLayer *layer)
 
void setVisible (bool on)
 
bool visible () 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 event (QEvent *e)
 
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 Attributes

QCPItemAnchor *const bottom
 
QCPItemAnchor *const bottomLeft
 
QCPItemPosition *const bottomRight
 
QCPItemAnchor *const left
 
QCPItemAnchor *const right
 
QCPItemAnchor *const top
 
QCPItemPosition *const topLeft
 
QCPItemAnchor *const topRight
 

Protected Types

enum  AnchorIndex {
  aiTop , aiTopRight , aiRight , aiBottom ,
  aiBottomLeft , aiLeft
}
 

Protected Member Functions

virtual QPointF anchorPixelPosition (int anchorId) const override
 
virtual void draw (QCPPainter *painter) override
 
QRect getFinalRect (bool *flippedHorz=nullptr, bool *flippedVert=nullptr) const
 
QPen mainPen () const
 
void updateScaledPixmap (QRect finalRect=QRect(), bool flipHorz=false, bool flipVert=false)
 
- Protected Member Functions inherited from QCPAbstractItem
virtual void applyDefaultAntialiasingHint (QCPPainter *painter) const override
 
virtual QRect clipRect () const override
 
QCPItemAnchorcreateAnchor (const QString &name, int anchorId)
 
QCPItemPositioncreatePosition (const QString &name)
 
virtual void deselectEvent (bool *selectionStateChanged) override
 
double rectDistance (const QRectF &rect, const QPointF &pos, bool filledRect) const
 
virtual void selectEvent (QMouseEvent *event, bool additive, const QVariant &details, bool *selectionStateChanged) override
 
virtual QCP::Interaction selectionCategory () const override
 
- Protected Member Functions inherited from QCPLayerable
void applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const
 
void initializeParentPlot (QCustomPlot *parentPlot)
 
virtual void mouseDoubleClickEvent (QMouseEvent *event, const QVariant &details)
 
virtual void mouseMoveEvent (QMouseEvent *event, const QPointF &startPos)
 
virtual void mousePressEvent (QMouseEvent *event, const QVariant &details)
 
virtual void mouseReleaseEvent (QMouseEvent *event, const QPointF &startPos)
 
bool moveToLayer (QCPLayer *layer, bool prepend)
 
virtual void parentPlotInitialized (QCustomPlot *parentPlot)
 
void setParentLayerable (QCPLayerable *parentLayerable)
 
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)
 

Protected Attributes

Qt::AspectRatioMode mAspectRatioMode
 
QPen mPen
 
QPixmap mPixmap
 
bool mScaled
 
QPixmap mScaledPixmap
 
bool mScaledPixmapInvalidated
 
QPen mSelectedPen
 
Qt::TransformationMode mTransformationMode
 
- Protected Attributes inherited from QCPAbstractItem
QList< QCPItemAnchor * > mAnchors
 
QPointer< QCPAxisRectmClipAxisRect
 
bool mClipToAxisRect
 
QList< QCPItemPosition * > mPositions
 
bool mSelectable
 
bool mSelected
 
- Protected Attributes inherited from QCPLayerable
bool mAntialiased
 
QCPLayermLayer
 
QPointer< QCPLayerablemParentLayerable
 
QCustomPlotmParentPlot
 
bool mVisible
 

Additional Inherited Members

- Public Types inherited from QObject
typedef  QObjectList
 
- Properties inherited from QObject
 objectName
 
- Signals inherited from QCPAbstractItem
void selectableChanged (bool selectable)
 
void selectionChanged (bool selected)
 
- Signals inherited from QCPLayerable
void layerChanged (QCPLayer *newLayer)
 
- 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)
 

Detailed Description

An arbitrary pixmap.

Pixmap example. Blue dotted circles are anchors, solid blue discs are positions.

It has two positions, topLeft and bottomRight, which define the rectangle the pixmap will be drawn in. Depending on the scale setting (setScaled), the pixmap will be either scaled to fit the rectangle or be drawn aligned to the topLeft position.

If scaling is enabled and topLeft is further to the bottom/right than bottomRight (as shown on the right side of the example image), the pixmap will be flipped in the respective orientations.

Definition at line 6784 of file qcustomplot.h.

Member Enumeration Documentation

◆ AnchorIndex

enum QCPItemPixmap::AnchorIndex
protected

Definition at line 6826 of file qcustomplot.h.

Constructor & Destructor Documentation

◆ QCPItemPixmap()

QCPItemPixmap::QCPItemPixmap ( QCustomPlot * parentPlot)
explicit

Creates a rectangle item and sets default values.

The created item is automatically registered with parentPlot. This QCustomPlot instance takes ownership of the item, so do not delete it manually but use QCustomPlot::removeItem() instead.

Definition at line 30156 of file qcustomplot.cpp.

◆ ~QCPItemPixmap()

QCPItemPixmap::~QCPItemPixmap ( )
overridevirtual

Definition at line 30178 of file qcustomplot.cpp.

Member Function Documentation

◆ anchorPixelPosition()

QPointF QCPItemPixmap::anchorPixelPosition ( int anchorId) const
overrideprotectedvirtual

Returns the pixel position of the anchor with Id anchorId. This function must be reimplemented in item subclasses if they want to provide anchors (QCPItemAnchor).

For example, if the item has two anchors with id 0 and 1, this function takes one of these anchor ids and returns the respective pixel points of the specified anchor.

See also
createAnchor

Reimplemented from QCPAbstractItem.

Definition at line 30258 of file qcustomplot.cpp.

◆ aspectRatioMode()

Qt::AspectRatioMode QCPItemPixmap::aspectRatioMode ( ) const
inline

Definition at line 6802 of file qcustomplot.h.

◆ draw()

void QCPItemPixmap::draw ( QCPPainter * painter)
overrideprotectedvirtual

Draws this item with the provided painter.

The cliprect of the provided painter is set to the rect returned by clipRect before this function is called. The clipRect depends on the clipping settings defined by setClipToAxisRect and setClipAxisRect.

Implements QCPAbstractItem.

Definition at line 30236 of file qcustomplot.cpp.

◆ getFinalRect()

QRect QCPItemPixmap::getFinalRect ( bool * flippedHorz = nullptr,
bool * flippedVert = nullptr ) const
protected

Returns the final (tight) rect the pixmap is drawn in, depending on the current item positions and scaling settings.

The output parameters flippedHorz and flippedVert return whether the pixmap should be drawn flipped horizontally or vertically in the returned rect. (The returned rect itself is always normalized, i.e. the top left corner of the rect is actually further to the top/left than the bottom right corner). This is the case when the item position topLeft is further to the bottom/right than bottomRight.

If scaling is disabled, returns a rect with size of the original pixmap and the top left corner aligned with the item position topLeft. The position bottomRight is ignored.

Definition at line 30339 of file qcustomplot.cpp.

◆ mainPen()

QPen QCPItemPixmap::mainPen ( ) const
protected

Returns the pen that should be used for drawing lines. Returns mPen when the item is not selected and mSelectedPen when it is.

Definition at line 30392 of file qcustomplot.cpp.

◆ pen()

QPen QCPItemPixmap::pen ( ) const
inline

Definition at line 6804 of file qcustomplot.h.

◆ pixmap()

QPixmap QCPItemPixmap::pixmap ( ) const
inline

Definition at line 6800 of file qcustomplot.h.

◆ scaled()

bool QCPItemPixmap::scaled ( ) const
inline

Definition at line 6801 of file qcustomplot.h.

◆ selectedPen()

QPen QCPItemPixmap::selectedPen ( ) const
inline

Definition at line 6805 of file qcustomplot.h.

◆ selectTest()

double QCPItemPixmap::selectTest ( const QPointF & pos,
bool onlySelectable,
QVariant * details = nullptr ) const
overridevirtual

This function is used to decide whether a click hits a layerable object or not.

pos is a point in pixel coordinates on the QCustomPlot surface. This function returns the shortest pixel distance of this point to the object. If the object is either invisible or the distance couldn't be determined, -1.0 is returned. Further, if onlySelectable is true and the object is not selectable, -1.0 is returned, too.

If the object is represented not by single lines but by an area like a QCPItemText or the bars of a QCPBars plottable, a click inside the area should also be considered a hit. In these cases this function thus returns a constant value greater zero but still below the parent plot's selection tolerance. (typically the selectionTolerance multiplied by 0.99).

Providing a constant value for area objects allows selecting line objects even when they are obscured by such area objects, by clicking close to the lines (i.e. closer than 0.99*selectionTolerance).

The actual setting of the selection state is not done by this function. This is handled by the parent QCustomPlot when the mouseReleaseEvent occurs, and the finally selected object is notified via the selectEvent/ deselectEvent methods.

details is an optional output parameter. Every layerable subclass may place any information in details. This information will be passed to selectEvent when the parent QCustomPlot decides on the basis of this selectTest call, that the object was successfully selected. The subsequent call to selectEvent will carry the details. This is useful for multi-part objects (like QCPAxis). This way, a possibly complex calculation to decide which part was clicked is only done once in selectTest. The result (i.e. the actually clicked part) can then be placed in details. So in the subsequent selectEvent, the decision which part was selected doesn't have to be done a second time for a single selection operation.

In the case of 1D Plottables (QCPAbstractPlottable1D, like QCPGraph or QCPBars) details will be set to a QCPDataSelection, describing the closest data point to pos.

You may pass nullptr as details to indicate that you are not interested in those selection details.

See also
selectEvent, deselectEvent, mousePressEvent, wheelEvent, QCustomPlot::setInteractions, QCPAbstractPlottable1D::selectTestRect

Implements QCPAbstractItem.

Definition at line 30226 of file qcustomplot.cpp.

◆ setPen()

void QCPItemPixmap::setPen ( const QPen & pen)

Sets the pen that will be used to draw a border around the pixmap.

See also
setSelectedPen, setBrush

Definition at line 30210 of file qcustomplot.cpp.

◆ setPixmap()

void QCPItemPixmap::setPixmap ( const QPixmap & pixmap)

Sets the pixmap that will be displayed.

Definition at line 30185 of file qcustomplot.cpp.

◆ setScaled()

void QCPItemPixmap::setScaled ( bool scaled,
Qt::AspectRatioMode aspectRatioMode = Qt::KeepAspectRatio,
Qt::TransformationMode transformationMode = Qt::SmoothTransformation )

Sets whether the pixmap will be scaled to fit the rectangle defined by the topLeft and bottomRight positions.

Definition at line 30197 of file qcustomplot.cpp.

◆ setSelectedPen()

void QCPItemPixmap::setSelectedPen ( const QPen & pen)

Sets the pen that will be used to draw a border around the pixmap when selected

See also
setPen, setSelected

Definition at line 30220 of file qcustomplot.cpp.

◆ transformationMode()

Qt::TransformationMode QCPItemPixmap::transformationMode ( ) const
inline

Definition at line 6803 of file qcustomplot.h.

◆ updateScaledPixmap()

void QCPItemPixmap::updateScaledPixmap ( QRect finalRect = QRect(),
bool flipHorz = false,
bool flipVert = false )
protected

Creates the buffered scaled image (mScaledPixmap) to fit the specified finalRect. The parameters flipHorz and flipVert control whether the resulting image shall be flipped horizontally or vertically. (This is used when topLeft is further to the bottom/right than bottomRight.)

This function only creates the scaled pixmap when the buffered pixmap has a different size than the expected result, so calling this function repeatedly, e.g. in the draw function, does not cause expensive rescaling every time.

If scaling is disabled, sets mScaledPixmap to a null QPixmap.

Definition at line 30297 of file qcustomplot.cpp.

Member Data Documentation

◆ bottom

QCPItemAnchor* const QCPItemPixmap::bottom

Definition at line 6821 of file qcustomplot.h.

◆ bottomLeft

QCPItemAnchor* const QCPItemPixmap::bottomLeft

Definition at line 6822 of file qcustomplot.h.

◆ bottomRight

QCPItemPosition* const QCPItemPixmap::bottomRight

Definition at line 6817 of file qcustomplot.h.

◆ left

QCPItemAnchor* const QCPItemPixmap::left

Definition at line 6823 of file qcustomplot.h.

◆ mAspectRatioMode

Qt::AspectRatioMode QCPItemPixmap::mAspectRatioMode
protected

Definition at line 6833 of file qcustomplot.h.

◆ mPen

QPen QCPItemPixmap::mPen
protected

Definition at line 6835 of file qcustomplot.h.

◆ mPixmap

QPixmap QCPItemPixmap::mPixmap
protected

Definition at line 6829 of file qcustomplot.h.

◆ mScaled

bool QCPItemPixmap::mScaled
protected

Definition at line 6831 of file qcustomplot.h.

◆ mScaledPixmap

QPixmap QCPItemPixmap::mScaledPixmap
protected

Definition at line 6830 of file qcustomplot.h.

◆ mScaledPixmapInvalidated

bool QCPItemPixmap::mScaledPixmapInvalidated
protected

Definition at line 6832 of file qcustomplot.h.

◆ mSelectedPen

QPen QCPItemPixmap::mSelectedPen
protected

Definition at line 6835 of file qcustomplot.h.

◆ mTransformationMode

Qt::TransformationMode QCPItemPixmap::mTransformationMode
protected

Definition at line 6834 of file qcustomplot.h.

◆ right

QCPItemAnchor* const QCPItemPixmap::right

Definition at line 6820 of file qcustomplot.h.

◆ top

QCPItemAnchor* const QCPItemPixmap::top

Definition at line 6818 of file qcustomplot.h.

◆ topLeft

QCPItemPosition* const QCPItemPixmap::topLeft

Definition at line 6816 of file qcustomplot.h.

◆ topRight

QCPItemAnchor* const QCPItemPixmap::topRight

Definition at line 6819 of file qcustomplot.h.


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