QwtScaleWidget(3) | Qwt User's Guide | QwtScaleWidget(3) |
NAME¶
QwtScaleWidget -
SYNOPSIS¶
#include <qwt_scale_widget.h>
Signals¶
void scaleDivChanged ()
Public Member Functions¶
QwtScaleWidget (QWidget *parent=NULL)
QwtScaleWidget (QwtScaleDraw::Alignment, QWidget *parent=NULL)
virtual ~QwtScaleWidget ()
QwtScaleDraw::Alignment alignment () const
QwtDoubleInterval colorBarInterval () const
QRect colorBarRect (const QRect &) const
int colorBarWidth () const
const QwtColorMap & colorMap () const
int dimForLength (int length, const QFont &scaleFont) const
void drawColorBar (QPainter *painter, const QRect &rect) const
void drawTitle (QPainter *painter, QwtScaleDraw::Alignment,
const QRect &rect) const
int endBorderDist () const
void getBorderDistHint (int &start, int &end) const
void getMinBorderDist (int &start, int &end) const
bool isColorBarEnabled () const
int margin () const
virtual QSize minimumSizeHint () const
int penWidth () const
const QwtScaleDraw * scaleDraw () const
QwtScaleDraw * scaleDraw ()
void setAlignment (QwtScaleDraw::Alignment)
void setBorderDist (int start, int end)
void setColorBarEnabled (bool)
void setColorBarWidth (int)
void setColorMap (const QwtDoubleInterval &, const
QwtColorMap &)
void setLabelAlignment (Qt::Alignment)
void setLabelRotation (double rotation)
void setMargin (int)
void setMinBorderDist (int start, int end)
void setPenWidth (int)
void setScaleDiv (QwtScaleTransformation *, const
QwtScaleDiv &sd)
void setScaleDraw (QwtScaleDraw *)
void setSpacing (int td)
void setTitle (const QString &title)
void setTitle (const QwtText &title)
virtual QSize sizeHint () const
int spacing () const
int startBorderDist () const
QwtText title () const
int titleHeightForWidth (int width) const
Protected Member Functions¶
void draw (QPainter *p) const
void layoutScale (bool update=true)
virtual void paintEvent (QPaintEvent *e)
virtual void resizeEvent (QResizeEvent *e)
void scaleChange ()
Detailed Description¶
A Widget which contains a scale.
This Widget can be used to decorate composite widgets with a scale.
Constructor & Destructor Documentation¶
QwtScaleWidget::QwtScaleWidget (QWidget *parent = NULL) [explicit]¶
Create a scale with the position QwtScaleWidget::Left. Parameters:
QwtScaleWidget::QwtScaleWidget (QwtScaleDraw::Alignmentalign, QWidget *parent = NULL) [explicit]¶
Constructor. Parameters:
parent Parent widget
Member Function Documentation¶
QwtScaleDraw::Alignment QwtScaleWidget::alignment () const¶
Returns:
See also:
int QwtScaleWidget::dimForLength (intlength, const QFont &scaleFont) const¶
Find the minimum dimension for a given length. dim is the height, length the width seen in direction of the title. Parameters:
scaleFont Font of the scale
Returns:
void QwtScaleWidget::drawTitle (QPainter *painter, QwtScaleDraw::Alignmentalign, const QRect &rect) const¶
Rotate and paint a title according to its position into a given rectangle.
Parameters:
align Alignment
rect Bounding rectangle
int QwtScaleWidget::endBorderDist () const¶
Returns:
See also:
void QwtScaleWidget::getBorderDistHint (int &start, int &end) const¶
Calculate a hint for the border distances. This member function calculates the distance of the scale's endpoints from the widget borders which is required for the mark labels to fit into the widget. The maximum of this distance an the minimum border distance is returned.
Warning:
- •
- The minimum border distance depends on the font.
See also:
void QwtScaleWidget::getMinBorderDist (int &start, int &end) const¶
Get the minimum value for the distances of the scale's endpoints from the widget borders.
See also:
int QwtScaleWidget::margin () const¶
Returns:
See also:
QSize QwtScaleWidget::minimumSizeHint () const [virtual]¶
Returns:
int QwtScaleWidget::penWidth () const¶
Returns:
See also:
void QwtScaleWidget::scaleChange () [protected]¶
Notify a change of the scale. This virtual function can be overloaded by derived classes. The default implementation updates the geometry and repaints the widget.
const QwtScaleDraw * QwtScaleWidget::scaleDraw () const¶
scaleDraw of this scale
See also:
QwtScaleDraw * QwtScaleWidget::scaleDraw ()¶
scaleDraw of this scale
See also:
void QwtScaleWidget::setAlignment (QwtScaleDraw::Alignmentalignment)¶
Change the alignment
Parameters:
See also:
void QwtScaleWidget::setBorderDist (intdist1, intdist2)¶
Specify distances of the scale's endpoints from the widget's borders. The actual borders will never be less than minimum border distance.
Parameters:
dist2 Right or bottom distance
See also:
void QwtScaleWidget::setLabelAlignment (Qt::Alignmentalignment)¶
Change the alignment for the labels. See also:
void QwtScaleWidget::setLabelRotation (doublerotation)¶
Change the rotation for the labels. See QwtScaleDraw::setLabelRotation(). Parameters:
See also:
void QwtScaleWidget::setMargin (intmargin)¶
Specify the margin to the colorBar/base line. Parameters:
See also:
void QwtScaleWidget::setMinBorderDist (intstart, intend)¶
Set a minimum value for the distances of the scale's endpoints from the widget borders. This is useful to avoid that the scales are 'jumping', when the tick labels or their positions change often.
Parameters:
end Minimum for the end border
See also:
void QwtScaleWidget::setPenWidth (intwidth)¶
Specify the width of the scale pen. Parameters:
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void QwtScaleWidget::setScaleDiv (QwtScaleTransformation *transformation, const QwtScaleDiv &scaleDiv)¶
Assign a scale division. The scale division determines where to set the tick marks.
Parameters:
scaleDiv Scale Division
See also:
void QwtScaleWidget::setScaleDraw (QwtScaleDraw *sd)¶
Set a scale draw sd has to be created with new and will be deleted in ~QwtScaleWidget() or the next call of setScaleDraw().
Parameters:
See also:
void QwtScaleWidget::setSpacing (intspacing)¶
Specify the distance between color bar, scale and title. Parameters:
See also:
void QwtScaleWidget::setTitle (const QString &title)¶
Give title new text contents
Parameters:
See also:
void QwtScaleWidget::setTitle (const QwtText &title)¶
Give title new text contents
Parameters:
See also:
Warning:
QSize QwtScaleWidget::sizeHint () const [virtual]¶
Returns:
int QwtScaleWidget::spacing () const¶
Returns:
See also:
int QwtScaleWidget::startBorderDist () const¶
Returns:
See also:
QwtText QwtScaleWidget::title () const¶
Returns:
See also:
int QwtScaleWidget::titleHeightForWidth (intwidth) const¶
Find the height of the title for a given width. Parameters:
Returns:
Author¶
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Tue Nov 20 2012 | Version 5.2.3 |