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Qwt User's Guide 6.3.0
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A drawing primitive for displaying an interval like an error bar. More...
#include <qwt_interval_symbol.h>
Public Types | |
| enum | Style { NoSymbol = -1 , Bar , Box , UserSymbol = 1000 } |
| Symbol style. More... | |
Public Member Functions | |
| QwtIntervalSymbol (Style=NoSymbol) | |
| QwtIntervalSymbol (const QwtIntervalSymbol &) | |
| Copy constructor. | |
| virtual | ~QwtIntervalSymbol () |
| Destructor. | |
| QwtIntervalSymbol & | operator= (const QwtIntervalSymbol &) |
| Assignment operator. | |
| bool | operator== (const QwtIntervalSymbol &) const |
| Compare two symbols. | |
| bool | operator!= (const QwtIntervalSymbol &) const |
| Compare two symbols. | |
| void | setWidth (int) |
| int | width () const |
| void | setBrush (const QBrush &) |
| Assign a brush. | |
| const QBrush & | brush () const |
| void | setPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine) |
| void | setPen (const QPen &) |
| const QPen & | pen () const |
| void | setStyle (Style) |
| Style | style () const |
| virtual void | draw (QPainter *, Qt::Orientation, const QPointF &from, const QPointF &to) const |
A drawing primitive for displaying an interval like an error bar.
Definition at line 27 of file qwt_interval_symbol.h.
Symbol style.
| Enumerator | |
|---|---|
| NoSymbol | No Style. The symbol cannot be drawn. |
| Bar | The symbol displays a line with caps at the beginning/end. The size of the caps depends on the symbol width(). |
| Box | The symbol displays a plain rectangle using pen() and brush(). The size of the rectangle depends on the translated interval and the width(), |
| UserSymbol | Styles >= UserSymbol are reserved for derived classes of QwtIntervalSymbol that overload draw() with additional application specific symbol types. |
Definition at line 31 of file qwt_interval_symbol.h.
Constructor
| style | Style of the symbol |
Definition at line 47 of file qwt_interval_symbol.cpp.
| QwtIntervalSymbol::QwtIntervalSymbol | ( | const QwtIntervalSymbol & | other | ) |
Copy constructor.
Definition at line 54 of file qwt_interval_symbol.cpp.
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virtual |
Destructor.
Definition at line 61 of file qwt_interval_symbol.cpp.
| const QBrush & QwtIntervalSymbol::brush | ( | ) | const |
|
virtual |
Draw a symbol depending on its style
| painter | Painter |
| orientation | Orientation |
| from | Start point of the interval in target device coordinates |
| to | End point of the interval in target device coordinates |
Definition at line 200 of file qwt_interval_symbol.cpp.
| bool QwtIntervalSymbol::operator!= | ( | const QwtIntervalSymbol & | other | ) | const |
Compare two symbols.
Definition at line 82 of file qwt_interval_symbol.cpp.
| QwtIntervalSymbol & QwtIntervalSymbol::operator= | ( | const QwtIntervalSymbol & | other | ) |
Assignment operator.
Definition at line 67 of file qwt_interval_symbol.cpp.
| bool QwtIntervalSymbol::operator== | ( | const QwtIntervalSymbol & | other | ) | const |
Compare two symbols.
Definition at line 75 of file qwt_interval_symbol.cpp.
| const QPen & QwtIntervalSymbol::pen | ( | ) | const |
| void QwtIntervalSymbol::setBrush | ( | const QBrush & | brush | ) |
Assign a brush.
The brush is used for the Box style.
| brush | Brush |
Definition at line 137 of file qwt_interval_symbol.cpp.
| void QwtIntervalSymbol::setPen | ( | const QColor & | color, |
| qreal | width = 0.0, | ||
| Qt::PenStyle | style = Qt::SolidLine ) |
Build and assign a pen
In Qt5 the default pen width is 1.0 ( 0.0 in Qt4 ) what makes it non cosmetic ( see QPen::isCosmetic() ). This method has been introduced to hide this incompatibility.
| color | Pen color |
| width | Pen width |
| style | Pen style |
Definition at line 164 of file qwt_interval_symbol.cpp.
| void QwtIntervalSymbol::setPen | ( | const QPen & | pen | ) |
Assign a pen
| pen | Pen |
Definition at line 176 of file qwt_interval_symbol.cpp.
| void QwtIntervalSymbol::setStyle | ( | Style | style | ) |
Specify the symbol style
| style | Style |
Definition at line 94 of file qwt_interval_symbol.cpp.
| void QwtIntervalSymbol::setWidth | ( | int | width | ) |
Specify the width of the symbol It is used depending on the style.
| width | Width |
Definition at line 115 of file qwt_interval_symbol.cpp.
| QwtIntervalSymbol::Style QwtIntervalSymbol::style | ( | ) | const |
Definition at line 103 of file qwt_interval_symbol.cpp.
| int QwtIntervalSymbol::width | ( | ) | const |
Definition at line 124 of file qwt_interval_symbol.cpp.