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QCPTextElement Class Reference

A layout element displaying a text. More...

#include <qcustomplot.h>

Inheritance diagram for QCPTextElement:
Collaboration diagram for QCPTextElement:

Signals

void selectionChanged (bool selected)
 
void selectableChanged (bool selectable)
 
void clicked (QMouseEvent *event)
 
void doubleClicked (QMouseEvent *event)
 
- Signals inherited from QCPLayerable
void layerChanged (QCPLayer *newLayer)
 
void layerChanged (QCPLayer *newLayer)
 

Public Member Functions

 QCPTextElement (QCustomPlot *parentPlot)
 
 QCPTextElement (QCustomPlot *parentPlot, const QString &text)
 
 QCPTextElement (QCustomPlot *parentPlot, const QString &text, double pointSize)
 
 QCPTextElement (QCustomPlot *parentPlot, const QString &text, const QString &fontFamily, double pointSize)
 
 QCPTextElement (QCustomPlot *parentPlot, const QString &text, const QFont &font)
 
QString text () const
 
int textFlags () const
 
QFont font () const
 
QColor textColor () const
 
QFont selectedFont () const
 
QColor selectedTextColor () const
 
bool selectable () const
 
bool selected () const
 
void setText (const QString &text)
 
void setTextFlags (int flags)
 
void setFont (const QFont &font)
 
void setTextColor (const QColor &color)
 
void setSelectedFont (const QFont &font)
 
void setSelectedTextColor (const QColor &color)
 
Q_SLOT void setSelectable (bool selectable)
 
Q_SLOT void setSelected (bool selected)
 
virtual double selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=0) const
 
virtual void mousePressEvent (QMouseEvent *event, const QVariant &details)
 
virtual void mouseReleaseEvent (QMouseEvent *event, const QPointF &startPos)
 
virtual void mouseDoubleClickEvent (QMouseEvent *event, const QVariant &details)
 
- Public Member Functions inherited from QCPLayoutElement
 QCPLayoutElement (QCustomPlot *parentPlot=0)
 
virtual ~QCPLayoutElement ()
 
QCPLayoutlayout () const
 
QRect rect () const
 
QRect outerRect () const
 
QMargins margins () const
 
QMargins minimumMargins () const
 
QCP::MarginSides autoMargins () const
 
QSize minimumSize () const
 
QSize maximumSize () const
 
SizeConstraintRect sizeConstraintRect () const
 
QCPMarginGroupmarginGroup (QCP::MarginSide side) const
 
QHash< QCP::MarginSide, QCPMarginGroup * > marginGroups () const
 
void setOuterRect (const QRect &rect)
 
void setMargins (const QMargins &margins)
 
void setMinimumMargins (const QMargins &margins)
 
void setAutoMargins (QCP::MarginSides sides)
 
void setMinimumSize (const QSize &size)
 
void setMinimumSize (int width, int height)
 
void setMaximumSize (const QSize &size)
 
void setMaximumSize (int width, int height)
 
void setSizeConstraintRect (SizeConstraintRect constraintRect)
 
void setMarginGroup (QCP::MarginSides sides, QCPMarginGroup *group)
 
virtual void update (UpdatePhase phase)
 
virtual QList< QCPLayoutElement * > elements (bool recursive) const
 
 QCPLayoutElement (QCustomPlot *parentPlot=0)
 
virtual ~QCPLayoutElement ()
 
QCPLayoutlayout () const
 
QRect rect () const
 
QRect outerRect () const
 
QMargins margins () const
 
QMargins minimumMargins () const
 
QCP::MarginSides autoMargins () const
 
QSize minimumSize () const
 
QSize maximumSize () const
 
QCPMarginGroupmarginGroup (QCP::MarginSide side) const
 
QHash< QCP::MarginSide, QCPMarginGroup * > marginGroups () const
 
void setOuterRect (const QRect &rect)
 
void setMargins (const QMargins &margins)
 
void setMinimumMargins (const QMargins &margins)
 
void setAutoMargins (QCP::MarginSides sides)
 
void setMinimumSize (const QSize &size)
 
void setMinimumSize (int width, int height)
 
void setMaximumSize (const QSize &size)
 
void setMaximumSize (int width, int height)
 
void setMarginGroup (QCP::MarginSides sides, QCPMarginGroup *group)
 
virtual void update (UpdatePhase phase)
 
virtual QSize minimumSizeHint () const
 
virtual QSize maximumSizeHint () const
 
virtual QList< QCPLayoutElement * > elements (bool recursive) const
 
- Public Member Functions inherited from QCPLayerable
 QCPLayerable (QCustomPlot *plot, QString targetLayer=QString(), QCPLayerable *parentLayerable=0)
 
virtual ~QCPLayerable ()
 
bool visible () const
 
QCustomPlotparentPlot () const
 
QCPLayerableparentLayerable () const
 
QCPLayerlayer () const
 
bool antialiased () const
 
void setVisible (bool on)
 
Q_SLOT bool setLayer (QCPLayer *layer)
 
bool setLayer (const QString &layerName)
 
void setAntialiased (bool enabled)
 
bool realVisibility () const
 
 QCPLayerable (QCustomPlot *plot, QString targetLayer=QString(), QCPLayerable *parentLayerable=0)
 
 ~QCPLayerable ()
 
bool visible () const
 
QCustomPlotparentPlot () const
 
QCPLayerableparentLayerable () const
 
QCPLayerlayer () const
 
bool antialiased () const
 
void setVisible (bool on)
 
Q_SLOT bool setLayer (QCPLayer *layer)
 
bool setLayer (const QString &layerName)
 
void setAntialiased (bool enabled)
 
bool realVisibility () const
 

Protected Member Functions

virtual void applyDefaultAntialiasingHint (QCPPainter *painter) const
 
virtual void draw (QCPPainter *painter)
 
virtual QSize minimumOuterSizeHint () const
 
virtual QSize maximumOuterSizeHint () const
 
virtual void selectEvent (QMouseEvent *event, bool additive, const QVariant &details, bool *selectionStateChanged)
 
virtual void deselectEvent (bool *selectionStateChanged)
 
QFont mainFont () const
 
QColor mainTextColor () const
 
- Protected Member Functions inherited from QCPLayoutElement
virtual int calculateAutoMargin (QCP::MarginSide side)
 
virtual void layoutChanged ()
 
virtual void parentPlotInitialized (QCustomPlot *parentPlot)
 
virtual int calculateAutoMargin (QCP::MarginSide side)
 
virtual void mousePressEvent (QMouseEvent *event)
 
virtual void mouseMoveEvent (QMouseEvent *event)
 
virtual void mouseReleaseEvent (QMouseEvent *event)
 
virtual void mouseDoubleClickEvent (QMouseEvent *event)
 
virtual void wheelEvent (QWheelEvent *event)
 
virtual void parentPlotInitialized (QCustomPlot *parentPlot)
 
- Protected Member Functions inherited from QCPLayerable
virtual QCP::Interaction selectionCategory () const
 
virtual QRect clipRect () const
 
virtual void mouseMoveEvent (QMouseEvent *event, const QPointF &startPos)
 
void initializeParentPlot (QCustomPlot *parentPlot)
 
void setParentLayerable (QCPLayerable *parentLayerable)
 
bool moveToLayer (QCPLayer *layer, bool prepend)
 
void applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const
 
virtual QCP::Interaction selectionCategory () const
 
virtual QRect clipRect () const
 
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

QString mText
 
int mTextFlags
 
QFont mFont
 
QColor mTextColor
 
QFont mSelectedFont
 
QColor mSelectedTextColor
 
QRect mTextBoundingRect
 
bool mSelectable
 
bool mSelected
 
- Protected Attributes inherited from QCPLayoutElement
QCPLayoutmParentLayout
 
QSize mMinimumSize
 
QSize mMaximumSize
 
SizeConstraintRect mSizeConstraintRect
 
QRect mRect
 
QRect mOuterRect
 
QMargins mMargins
 
QMargins mMinimumMargins
 
QCP::MarginSides mAutoMargins
 
QHash< QCP::MarginSide, QCPMarginGroup * > mMarginGroups
 
- Protected Attributes inherited from QCPLayerable
bool mVisible
 
QCustomPlotmParentPlot
 
QPointer< QCPLayerablemParentLayerable
 
QCPLayermLayer
 
bool mAntialiased
 

Additional Inherited Members

- Public Types inherited from QCPLayoutElement
enum  UpdatePhase {
  upPreparation , upMargins , upLayout , upPreparation ,
  upMargins , upLayout
}
 
enum  SizeConstraintRect { scrInnerRect , scrOuterRect }
 
enum  UpdatePhase {
  upPreparation , upMargins , upLayout , upPreparation ,
  upMargins , upLayout
}
 

Detailed Description

A layout element displaying a text.

The text may be specified with setText, the formatting can be controlled with setFont, setTextColor, and setTextFlags.

A text element can be added as follows:

qcptextelement-creation

Definition at line 5750 of file qcustomplot.h.

Constructor & Destructor Documentation

◆ QCPTextElement() [1/5]

QCPTextElement::QCPTextElement ( QCustomPlot parentPlot)
explicit

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Creates a new QCPTextElement instance and sets default values. The initial text is empty (setText).

Definition at line 19610 of file qcustomplot.cpp.

References mFont, mSelectedFont, QCPLayerable::parentPlot(), and QCPLayoutElement::setMargins().

◆ QCPTextElement() [2/5]

QCPTextElement::QCPTextElement ( QCustomPlot parentPlot,
const QString &  text 
)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Creates a new QCPTextElement instance and sets default values.

The initial text is set to text.

Definition at line 19637 of file qcustomplot.cpp.

References mFont, mSelectedFont, QCPLayerable::parentPlot(), and QCPLayoutElement::setMargins().

◆ QCPTextElement() [3/5]

QCPTextElement::QCPTextElement ( QCustomPlot parentPlot,
const QString &  text,
double  pointSize 
)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Creates a new QCPTextElement instance and sets default values.

The initial text is set to text with pointSize.

Definition at line 19664 of file qcustomplot.cpp.

References mFont, mSelectedFont, QCPLayerable::parentPlot(), and QCPLayoutElement::setMargins().

◆ QCPTextElement() [4/5]

QCPTextElement::QCPTextElement ( QCustomPlot parentPlot,
const QString &  text,
const QString &  fontFamily,
double  pointSize 
)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Creates a new QCPTextElement instance and sets default values.

The initial text is set to text with pointSize and the specified fontFamily.

Definition at line 19696 of file qcustomplot.cpp.

References QCPLayoutElement::setMargins().

◆ QCPTextElement() [5/5]

QCPTextElement::QCPTextElement ( QCustomPlot parentPlot,
const QString &  text,
const QFont &  font 
)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Creates a new QCPTextElement instance and sets default values.

The initial text is set to text with the specified font.

Definition at line 19718 of file qcustomplot.cpp.

References QCPLayoutElement::setMargins().

Member Function Documentation

◆ applyDefaultAntialiasingHint()

void QCPTextElement::applyDefaultAntialiasingHint ( QCPPainter painter) const
protectedvirtual

◆ clicked

void QCPTextElement::clicked ( QMouseEvent *  event)
signal

This signal is emitted when the text element is clicked.

See also
doubleClicked, selectTest

Referenced by mouseReleaseEvent().

◆ deselectEvent()

void QCPTextElement::deselectEvent ( bool *  selectionStateChanged)
protectedvirtual

Reimplemented from QCPLayerable.

Definition at line 19872 of file qcustomplot.cpp.

References mSelectable, mSelected, and setSelected().

◆ doubleClicked

void QCPTextElement::doubleClicked ( QMouseEvent *  event)
signal

This signal is emitted when the text element is double clicked.

See also
clicked, selectTest

Referenced by mouseDoubleClickEvent().

◆ draw()

void QCPTextElement::draw ( QCPPainter painter)
protectedvirtual

◆ font()

QFont QCPTextElement::font ( ) const
inline

Definition at line 5781 of file qcustomplot.h.

Referenced by setFont(), and setSelectedFont().

◆ mainFont()

QFont QCPTextElement::mainFont ( ) const
protected

Definition at line 19943 of file qcustomplot.cpp.

References mFont, mSelected, and mSelectedFont.

Referenced by draw().

◆ mainTextColor()

QColor QCPTextElement::mainTextColor ( ) const
protected

Definition at line 19952 of file qcustomplot.cpp.

References mSelected, mSelectedTextColor, and mTextColor.

Referenced by draw().

◆ maximumOuterSizeHint()

QSize QCPTextElement::maximumOuterSizeHint ( ) const
protectedvirtual

Returns the suggested maximum size this layout element (the outerRect) may be expanded to, if no manual maximum size is set.

if a maximum size (setMaximumSize) was not set manually, parent layouts use the returned size (usually indirectly through QCPLayout::getFinalMaximumOuterSize) to determine the maximum allowed size of this layout element.

A manual maximum size is considered set if it is smaller than Qt's QWIDGETSIZE_MAX.

The default implementation simply returns QWIDGETSIZE_MAX for both width and height, implying no suggested maximum size. Reimplementations may use their detailed knowledge about the layout element's content to provide size hints.

Reimplemented from QCPLayoutElement.

Definition at line 19847 of file qcustomplot.cpp.

References mFont, QCPLayoutElement::mMargins, mText, and result.

◆ minimumOuterSizeHint()

QSize QCPTextElement::minimumOuterSizeHint ( ) const
protectedvirtual

Returns the suggested minimum size this layout element (the outerRect) may be compressed to, if no manual minimum size is set.

if a minimum size (setMinimumSize) was not set manually, parent layouts use the returned size (usually indirectly through QCPLayout::getFinalMinimumOuterSize) to determine the minimum allowed size of this layout element.

A manual minimum size is considered set if it is non-zero.

The default implementation simply returns the sum of the horizontal margins for the width and the sum of the vertical margins for the height. Reimplementations may use their detailed knowledge about the layout element's content to provide size hints.

Reimplemented from QCPLayoutElement.

Definition at line 19837 of file qcustomplot.cpp.

References mFont, QCPLayoutElement::mMargins, mText, and result.

◆ mouseDoubleClickEvent()

void QCPTextElement::mouseDoubleClickEvent ( QMouseEvent *  event,
const QVariant &  details 
)
virtual

Emits the doubleClicked signal.

\seebaseclassmethod

Reimplemented from QCPLayerable.

Definition at line 19932 of file qcustomplot.cpp.

References doubleClicked(), and event.

◆ mousePressEvent()

void QCPTextElement::mousePressEvent ( QMouseEvent *  event,
const QVariant &  details 
)
virtual

Accepts the mouse event in order to emit the according click signal in the mouseReleaseEvent.

\seebaseclassmethod

Reimplemented from QCPLayerable.

Definition at line 19909 of file qcustomplot.cpp.

◆ mouseReleaseEvent()

void QCPTextElement::mouseReleaseEvent ( QMouseEvent *  event,
const QPointF &  startPos 
)
virtual

Emits the clicked signal if the cursor hasn't moved by more than a few pixels since the mousePressEvent.

\seebaseclassmethod

Reimplemented from QCPLayerable.

Definition at line 19921 of file qcustomplot.cpp.

References clicked(), and event.

◆ selectable()

bool QCPTextElement::selectable ( ) const
inline

Definition at line 5785 of file qcustomplot.h.

Referenced by setSelectable().

◆ selectableChanged

void QCPTextElement::selectableChanged ( bool  selectable)
signal

Referenced by setSelectable().

◆ selected()

bool QCPTextElement::selected ( ) const
inline

Definition at line 5786 of file qcustomplot.h.

Referenced by setSelected().

◆ selectedFont()

QFont QCPTextElement::selectedFont ( ) const
inline

Definition at line 5783 of file qcustomplot.h.

◆ selectedTextColor()

QColor QCPTextElement::selectedTextColor ( ) const
inline

Definition at line 5784 of file qcustomplot.h.

◆ selectEvent()

void QCPTextElement::selectEvent ( QMouseEvent *  event,
bool  additive,
const QVariant &  details,
bool *  selectionStateChanged 
)
protectedvirtual

Reimplemented from QCPLayerable.

Definition at line 19857 of file qcustomplot.cpp.

References event, mSelectable, mSelected, and setSelected().

◆ selectionChanged

void QCPTextElement::selectionChanged ( bool  selected)
signal

This signal is emitted when the selection state has changed to selected, either by user interaction or by a direct call to setSelected.

See also
setSelected, setSelectable

Referenced by setSelected().

◆ selectTest()

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

Returns 0.99*selectionTolerance (see QCustomPlot::setSelectionTolerance) when pos is within the bounding box of the text element's text. Note that this bounding box is updated in the draw call.

If pos is outside the text's bounding box or if onlySelectable is true and this text element is not selectable (setSelectable), returns -1.

\seebaseclassmethod

Reimplemented from QCPLayoutElement.

Definition at line 19891 of file qcustomplot.cpp.

References QCPLayerable::mParentPlot, mSelectable, mTextBoundingRect, and QCustomPlot::selectionTolerance().

◆ setFont()

void QCPTextElement::setFont ( const QFont &  font)

Sets the font of the text.

See also
setTextColor, setSelectedFont

Definition at line 19768 of file qcustomplot.cpp.

References font(), and mFont.

Referenced by ccHistogramWindow::refresh(), and ccWaveWidget::refresh().

◆ setSelectable()

void QCPTextElement::setSelectable ( bool  selectable)

Sets whether the user may select this text element.

Note that even when selectable is set to false, the selection state may be changed programmatically via setSelected.

Definition at line 19803 of file qcustomplot.cpp.

References mSelectable, selectable(), and selectableChanged().

◆ setSelected()

void QCPTextElement::setSelected ( bool  selected)

Sets the selection state of this text element to selected. If the selection has changed, selectionChanged is emitted.

Note that this function can change the selection state independently of the current setSelectable state.

Definition at line 19817 of file qcustomplot.cpp.

References mSelected, selected(), and selectionChanged().

Referenced by deselectEvent(), and selectEvent().

◆ setSelectedFont()

void QCPTextElement::setSelectedFont ( const QFont &  font)

Sets the font of the text that will be used if the text element is selected (setSelected).

See also
setFont

Definition at line 19783 of file qcustomplot.cpp.

References font(), and mSelectedFont.

◆ setSelectedTextColor()

void QCPTextElement::setSelectedTextColor ( const QColor &  color)

Sets the color of the text that will be used if the text element is selected (setSelected).

See also
setTextColor

Definition at line 19793 of file qcustomplot.cpp.

References color, and mSelectedTextColor.

◆ setText()

void QCPTextElement::setText ( const QString &  text)

Sets the text that will be displayed to text. Multiple lines can be created by insertion of "\n".

See also
setFont, setTextColor, setTextFlags

Definition at line 19739 of file qcustomplot.cpp.

References mText, and text().

◆ setTextColor()

void QCPTextElement::setTextColor ( const QColor &  color)

Sets the color of the text.

See also
setFont, setSelectedTextColor

Definition at line 19775 of file qcustomplot.cpp.

References color, and mTextColor.

◆ setTextFlags()

void QCPTextElement::setTextFlags ( int  flags)

Sets options for text alignment and wrapping behaviour. flags is a bitwise OR-combination of Qt::AlignmentFlag and Qt::TextFlag enums.

Possible enums are:

  • Qt::AlignLeft
  • Qt::AlignRight
  • Qt::AlignHCenter
  • Qt::AlignJustify
  • Qt::AlignTop
  • Qt::AlignBottom
  • Qt::AlignVCenter
  • Qt::AlignCenter
  • Qt::TextDontClip
  • Qt::TextSingleLine
  • Qt::TextExpandTabs
  • Qt::TextShowMnemonic
  • Qt::TextWordWrap
  • Qt::TextIncludeTrailingSpaces

Definition at line 19761 of file qcustomplot.cpp.

References mTextFlags.

◆ text()

QString QCPTextElement::text ( ) const
inline

Definition at line 5779 of file qcustomplot.h.

Referenced by setText().

◆ textColor()

QColor QCPTextElement::textColor ( ) const
inline

Definition at line 5782 of file qcustomplot.h.

◆ textFlags()

int QCPTextElement::textFlags ( ) const
inline

Definition at line 5780 of file qcustomplot.h.

Member Data Documentation

◆ mFont

QFont QCPTextElement::mFont
protected

◆ mSelectable

bool QCPTextElement::mSelectable
protected

Definition at line 5824 of file qcustomplot.h.

Referenced by deselectEvent(), selectEvent(), selectTest(), and setSelectable().

◆ mSelected

bool QCPTextElement::mSelected
protected

Definition at line 5824 of file qcustomplot.h.

Referenced by deselectEvent(), mainFont(), mainTextColor(), selectEvent(), and setSelected().

◆ mSelectedFont

QFont QCPTextElement::mSelectedFont
protected

Definition at line 5821 of file qcustomplot.h.

Referenced by mainFont(), QCPTextElement(), and setSelectedFont().

◆ mSelectedTextColor

QColor QCPTextElement::mSelectedTextColor
protected

Definition at line 5822 of file qcustomplot.h.

Referenced by mainTextColor(), and setSelectedTextColor().

◆ mText

QString QCPTextElement::mText
protected

Definition at line 5817 of file qcustomplot.h.

Referenced by draw(), maximumOuterSizeHint(), minimumOuterSizeHint(), and setText().

◆ mTextBoundingRect

QRect QCPTextElement::mTextBoundingRect
protected

Definition at line 5823 of file qcustomplot.h.

Referenced by draw(), and selectTest().

◆ mTextColor

QColor QCPTextElement::mTextColor
protected

Definition at line 5820 of file qcustomplot.h.

Referenced by mainTextColor(), and setTextColor().

◆ mTextFlags

int QCPTextElement::mTextFlags
protected

Definition at line 5818 of file qcustomplot.h.

Referenced by setTextFlags().


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