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QCPItemPixmap Class Reference

An arbitrary pixmap. More...

#include <plot2d.h>

Inheritance diagram for QCPItemPixmap:
QCPAbstractItem QCPLayerable

Public Member Functions

 QCPItemPixmap (QCustomPlot *parentPlot)
 
virtual ~QCPItemPixmap ()
 
QPixmap pixmap () const
 
bool scaled () const
 
Qt::AspectRatioMode aspectRatioMode () const
 
QPen pen () const
 
QPen selectedPen () const
 
void setPixmap (const QPixmap &pixmap)
 
void setScaled (bool scaled, Qt::AspectRatioMode aspectRatioMode=Qt::KeepAspectRatio)
 
void setPen (const QPen &pen)
 
void setSelectedPen (const QPen &pen)
 
virtual double selectTest (const QPointF &pos) const
 
- Public Member Functions inherited from QCPAbstractItem
 QCPAbstractItem (QCustomPlot *parentPlot)
 
virtual ~QCPAbstractItem ()
 
bool clipToAxisRect () const
 
QCPAxisclipKeyAxis () const
 
QCPAxisclipValueAxis () const
 
bool selectable () const
 
bool selected () const
 
void setClipToAxisRect (bool clip)
 
void setClipAxes (QCPAxis *keyAxis, QCPAxis *valueAxis)
 
void setClipKeyAxis (QCPAxis *axis)
 
void setClipValueAxis (QCPAxis *axis)
 
void setSelectable (bool selectable)
 
void setSelected (bool selected)
 
QList< QCPItemPosition * > positions () const
 
QList< QCPItemAnchor * > anchors () const
 
QCPItemPositionposition (const QString &name) const
 
QCPItemAnchoranchor (const QString &name) const
 
bool hasAnchor (const QString &name) const
 
- Public Member Functions inherited from QCPLayerable
 QCPLayerable (QCustomPlot *parentPlot)
 
 ~QCPLayerable ()
 
bool visible () const
 
QCustomPlotparentPlot () const
 
QCPLayerlayer () const
 
bool antialiased () const
 
void setVisible (bool on)
 
bool setLayer (QCPLayer *layer)
 
bool setLayer (const QString &layerName)
 
void setAntialiased (bool enabled)
 

Public Attributes

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

Protected Types

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

Protected Member Functions

virtual void draw (QCPPainter *painter)
 
virtual QPointF anchorPixelPoint (int anchorId) const
 
void updateScaledPixmap (QRect finalRect=QRect(), bool flipHorz=false, bool flipVert=false)
 
QRect getFinalRect (bool *flippedHorz=0, bool *flippedVert=0) const
 
QPen mainPen () const
 
- Protected Member Functions inherited from QCPAbstractItem
virtual QRect clipRect () const
 
virtual void applyDefaultAntialiasingHint (QCPPainter *painter) const
 
double distSqrToLine (const QPointF &start, const QPointF &end, const QPointF &point) const
 
double rectSelectTest (const QRectF &rect, const QPointF &pos, bool filledRect) const
 
QCPItemPositioncreatePosition (const QString &name)
 
QCPItemAnchorcreateAnchor (const QString &name, int anchorId)
 
- Protected Member Functions inherited from QCPLayerable
bool moveToLayer (QCPLayer *layer, bool prepend)
 
void applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const
 

Protected Attributes

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

Additional Inherited Members

- Signals inherited from QCPAbstractItem
void selectionChanged (bool selected)
 

Detailed Description

An arbitrary pixmap.

QCPItemPixmap.png
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.

Member Enumeration Documentation

Enumerator
aiTop 
aiTopRight 
aiRight 
aiBottom 
aiBottomLeft 
aiLeft 

Constructor & Destructor Documentation

QCPItemPixmap::QCPItemPixmap ( QCustomPlot parentPlot)

Creates a rectangle item and sets default values.

The constructed item can be added to the plot with QCustomPlot::addItem.

QCPItemPixmap::~QCPItemPixmap ( )
virtual

Member Function Documentation

QPointF QCPItemPixmap::anchorPixelPoint ( int  anchorId) const
protectedvirtual

Reimplemented from QCPAbstractItem.

Qt::AspectRatioMode QCPItemPixmap::aspectRatioMode ( ) const
inline
void QCPItemPixmap::draw ( QCPPainter painter)
protectedvirtual

Implements QCPAbstractItem.

QRect QCPItemPixmap::getFinalRect ( bool *  flippedHorz = 0,
bool *  flippedVert = 0 
) const
protected
QPen QCPItemPixmap::mainPen ( ) const
protected
QPen QCPItemPixmap::pen ( ) const
inline
QPixmap QCPItemPixmap::pixmap ( ) const
inline
bool QCPItemPixmap::scaled ( ) const
inline
QPen QCPItemPixmap::selectedPen ( ) const
inline
double QCPItemPixmap::selectTest ( const QPointF &  pos) const
virtual

This function is used to decide whether a click hits an item 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 item. If the item is either invisible or the distance couldn't be determined, -1.0 is returned. setSelectable has no influence on the return value of this function.

If the item is represented not by single lines but by an area like QCPItemRect or QCPItemText, a click inside the area returns a constant value greater zero (typically 99% of the selectionTolerance of the parent QCustomPlot). If the click lies outside the area, this function returns -1.0.

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.

See Also
setSelected, QCustomPlot::setInteractions

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 
)

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

Member Data Documentation

QCPItemAnchor* const QCPItemPixmap::bottom
QCPItemAnchor* const QCPItemPixmap::bottomLeft
QCPItemPosition* const QCPItemPixmap::bottomRight
QCPItemAnchor* const QCPItemPixmap::left
Qt::AspectRatioMode QCPItemPixmap::mAspectRatioMode
protected
QPen QCPItemPixmap::mPen
protected
QPixmap QCPItemPixmap::mPixmap
protected
bool QCPItemPixmap::mScaled
protected
QPixmap QCPItemPixmap::mScaledPixmap
protected
QPen QCPItemPixmap::mSelectedPen
protected
QCPItemAnchor* const QCPItemPixmap::right
QCPItemAnchor* const QCPItemPixmap::top
QCPItemPosition* const QCPItemPixmap::topLeft
QCPItemAnchor* const QCPItemPixmap::topRight

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