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An arbitrary pixmap. More...
Public Member Functions | |
| QCPItemPixmap (QCustomPlot *parentPlot) | |
| 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, bool onlySelectable, QVariant *details=0) const |
 Public Member Functions inherited from QCPAbstractItem | |
| QCPAbstractItem (QCustomPlot *parentPlot) | |
| bool | clipToAxisRect () const |
| QCPAxisRect * | clipAxisRect () const |
| bool | selectable () const |
| bool | selected () const |
| void | setClipToAxisRect (bool clip) |
| void | setClipAxisRect (QCPAxisRect *rect) |
| void | setSelectable (bool selectable) |
| void | setSelected (bool selected) |
| QList< QCPItemPosition * > | positions () const |
| QList< QCPItemAnchor * > | anchors () const |
| QCPItemPosition * | position (const QString &name) const |
| QCPItemAnchor * | anchor (const QString &name) const |
| bool | hasAnchor (const QString &name) const |
| Public Member Functions inherited from QCPLayerable | |
| QCPLayerable (QCustomPlot *plot, QString targetLayer="", QCPLayerable *parentLayerable=0) | |
| bool | visible () const |
| QCustomPlot * | parentPlot () const |
| QCPLayerable * | parentLayerable () const |
| QCPLayer * | layer () const |
| bool | antialiased () const |
| void | setVisible (bool on) |
| bool | setLayer (QCPLayer *layer) |
| bool | setLayer (const QString &layerName) |
| void | setAntialiased (bool enabled) |
| bool | realVisibility () const |
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 QCP::Interaction | selectionCategory () const |
| virtual QRect | clipRect () const |
| virtual void | applyDefaultAntialiasingHint (QCPPainter *painter) const |
| virtual void | selectEvent (QMouseEvent *event, bool additive, const QVariant &details, bool *selectionStateChanged) |
| virtual void | deselectEvent (bool *selectionStateChanged) |
| double | distSqrToLine (const QPointF &start, const QPointF &end, const QPointF &point) const |
| double | rectSelectTest (const QRectF &rect, const QPointF &pos, bool filledRect) const |
| QCPItemPosition * | createPosition (const QString &name) |
| QCPItemAnchor * | createAnchor (const QString &name, int anchorId) |
| Protected Member Functions inherited from QCPLayerable | |
| virtual void | parentPlotInitialized (QCustomPlot *parentPlot) |
| void | initializeParentPlot (QCustomPlot *parentPlot) |
| void | setParentLayerable (QCPLayerable *parentLayerable) |
| 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 |
| QPointer< QCPAxisRect > | mClipAxisRect |
| QList< QCPItemPosition * > | mPositions |
| QList< QCPItemAnchor * > | mAnchors |
| bool | mSelectable |
| bool | mSelected |
| Protected Attributes inherited from QCPLayerable | |
| bool | mVisible |
| QCustomPlot * | mParentPlot |
| QPointer< QCPLayerable > | mParentLayerable |
| QCPLayer * | mLayer |
| bool | mAntialiased |
Additional Inherited Members | |
| Signals inherited from QCPAbstractItem | |
| void | selectionChanged (bool selected) |
An arbitrary pixmap.
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.
| QCPItemPixmap::QCPItemPixmap | ( | QCustomPlot * | parentPlot | ) |
Creates a rectangle item and sets default values.
The constructed item can be added to the plot with QCustomPlot::addItem.
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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 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 the selectionTolerance of the parent QCustomPlot multiplied by 0.99). 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, 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.
You may pass 0 as details to indicate that you are not interested in those selection details.
Implements QCPAbstractItem.
| void QCPItemPixmap::setPen | ( | const QPen & | pen | ) |
Sets the pen that will be used to draw a border around the pixmap.
| void QCPItemPixmap::setPixmap | ( | const QPixmap & | pixmap | ) |
Sets the pixmap that will be displayed.
| void QCPItemPixmap::setScaled | ( | bool | scaled, |
| Qt::AspectRatioMode | aspectRatioMode = Qt::KeepAspectRatio |
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| ) |
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
1.8.9.1
