An arbitrary pixmap. More...

Inheritance diagram for QCPItemPixmap:

Public Member Functions
Qt::AspectRatioMode	aspectRatioMode () const

QPen	pen () const

QPixmap	pixmap () const

	QCPItemPixmap (QCustomPlot *parentPlot)

bool	scaled () const

QPen	selectedPen () const

virtual double	selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=0) const Q_DECL_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
QCPItemAnchor *	anchor (const QString &name) const

QList< QCPItemAnchor * >	anchors () const

QCPAxisRect *	clipAxisRect () const

bool	clipToAxisRect () const

bool	hasAnchor (const QString &name) const

QCPItemPosition *	position (const QString &name) const

QList< QCPItemPosition * >	positions () const

	QCPAbstractItem (QCustomPlot *parentPlot)

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
bool	antialiased () const

QCPLayer *	layer () const

QCPLayerable *	parentLayerable () const

QCustomPlot *	parentPlot () const

	QCPLayerable (QCustomPlot plot, QString targetLayer=QString(), QCPLayerable parentLayerable=0)

bool	realVisibility () const

void	setAntialiased (bool enabled)

Q_SLOT bool	setLayer (QCPLayer *layer)

bool	setLayer (const QString &layerName)

void	setVisible (bool on)

bool	visible () 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 Q_DECL_OVERRIDE

virtual void	draw (QCPPainter *painter) Q_DECL_OVERRIDE

QRect	getFinalRect (bool flippedHorz=0, bool flippedVert=0) 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 Q_DECL_OVERRIDE

virtual QRect	clipRect () const Q_DECL_OVERRIDE

QCPItemAnchor *	createAnchor (const QString &name, int anchorId)

QCPItemPosition *	createPosition (const QString &name)

virtual void	deselectEvent (bool *selectionStateChanged) Q_DECL_OVERRIDE

double	rectDistance (const QRectF &rect, const QPointF &pos, bool filledRect) const

virtual void	selectEvent (QMouseEvent event, bool additive, const QVariant &details, bool selectionStateChanged) Q_DECL_OVERRIDE

virtual QCP::Interaction	selectionCategory () const Q_DECL_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 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< QCPAxisRect >	mClipAxisRect

bool	mClipToAxisRect

QList< QCPItemPosition * >	mPositions

bool	mSelectable

bool	mSelected

Protected Attributes inherited from QCPLayerable
bool	mAntialiased

QCPLayer *	mLayer

QPointer< QCPLayerable >	mParentLayerable

QCustomPlot *	mParentPlot

bool	mVisible

Additional Inherited Members
Signals inherited from QCPAbstractItem
void	selectableChanged (bool selectable)

void	selectionChanged (bool selected)

Signals inherited from QCPLayerable
void	layerChanged (QCPLayer *newLayer)

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.

Constructor & Destructor Documentation

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.

Member Function Documentation

double QCPItemPixmap::selectTest	(	const QPointF &	pos,
		bool	onlySelectable,
		QVariant *	details = `0`
	)		const

virtual

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 0 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.

void QCPItemPixmap::setPen ( const QPen & pen )

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

See also: setSelectedPen, setBrush

void QCPItemPixmap::setPixmap ( const QPixmap & pixmap )

Sets the pixmap that will be displayed.

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.

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

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

projects/gui/3rdparty/qcustomplot/qcustomplot.h
projects/gui/3rdparty/qcustomplot/qcustomplot.cpp

Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation