qwtscaledraw.3

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\fBParameters:\fP
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\fIfm\fP QFontMetrics 
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\fBReturns:\fP
.RS 4
the maximum width of a label 
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.SS "int QwtScaleDraw::maxLabelWidth (const QFontMetrics & fm) const\fC [protected, virtual]\fP"
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\fBParameters:\fP
.RS 4
\fIfm\fP QFontMetrics 
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\fBReturns:\fP
.RS 4
the maximum width of a label 
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.SS "int QwtScaleDraw::maxWidth (const QPen & pen, const QFontMetrics & fm) const"
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\fBParameters:\fP
.RS 4
\fIpen\fP pen 
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\fIfm\fP font metrics 
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\fBReturns:\fP
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the maximum width of the scale 
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.SS "void QwtScaleDraw::minBorderDist (const QFontMetrics & fm, int & start, int & end) const"
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Determine the minimum border distance. This member function returns the minimum space needed to draw the mark labels at the scale's endpoints.
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\fBParameters:\fP
.RS 4
\fIfm\fP QFontMetrics 
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\fIstart\fP start border distance 
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\fIend\fP end border distance 
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.SS "int QwtScaleDraw::minHeight (const QPen & pen, const QFontMetrics & fm) const"
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\fBParameters:\fP
.RS 4
\fIpen\fP pen 
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\fIfm\fP font metrics 
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\fBReturns:\fP
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the minimum height required to draw the scale including the minimum border distance 
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.SS "int QwtScaleDraw::minLabelDist (const QFontMetrics & fm) const"
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Determine the minimum distance between two labels, that is necessairy that the texts don't overlap.
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\fBParameters:\fP
.RS 4
\fIfm\fP QFontMetrics 
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\fBReturns:\fP
.RS 4
the maximum width of a label 
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\fBWarning:\fP
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Not implemented for round scales 
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.SS "int QwtScaleDraw::minWidth (const QPen & pen, const QFontMetrics & fm) const"
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\fBParameters:\fP
.RS 4
\fIpen\fP pen 
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\fIfm\fP font metrics 
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\fBReturns:\fP
.RS 4
the minimum width required to draw the scale including the minimum border distance 
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.SS "\fBQwtScaleDraw::Orientation\fP QwtScaleDraw::orientation () const"
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Return scale orientation. 
.SS "const \fBQwtScaleDiv\fP& QwtScaleDraw::scaleDiv () const"
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\fBReturns:\fP
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scale division 
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.SS "void QwtScaleDraw::setAngleRange (double angle1, double angle2)"
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Adjust the baseline circle segment for round scales. The baseline will be drawn from min(angle1,angle2) to max(angle1, angle2). The settings have no effect if the scale orientation is not set to QwtScaleDraw::Round. The default setting is [ -135, 135 ]. An angle of 0 degrees corresponds to the 12 o'clock position, and positive angles count in a clockwise direction. 
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\fBParameters:\fP
.RS 4
\fIangle1\fP 
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\fIangle2\fP boundaries of the angle interval in degrees. 
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\fBWarning:\fP
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.IP "\(bu" 2
The angle range is limited to [-360, 360] degrees. Angles exceeding this range will be clipped. 
.IP "\(bu" 2
For angles more than 359 degrees above or below min(angle1, angle2), scale marks will not be drawn. 
.IP "\(bu" 2
If you need a counterclockwise scale, use QwtScaleDiv::setRange 
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.SS "void QwtScaleDraw::setGeometry (int xorigin, int yorigin, int length, \fBOrientation\fP o)"
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Specify the geometry of the scale. The parameters xorigin, yorigin and length have different meanings, dependent on the orientation: 
.IP "\fBQwtScaleDraw::Left \fP" 1c
The origin is the topmost point of the baseline. The baseline is a vertical line with the specified length. Scale marks and labels are drawn at the left of the baseline. 
.IP "\fBQwtScaleDraw::Right \fP" 1c
The origin is the topmost point of the baseline. The baseline is a vertical line with the specified length. Scale marks and labels are drawn at the right of the baseline. 
.IP "\fBQwtScaleDraw::Top \fP" 1c
The origin is the leftmost point of the baseline. The baseline is a horizontal line with the specified length. Scale marks and labels are drawn above the baseline. 
.IP "\fBQwtScaleDraw::Bottom \fP" 1c
The origin is the leftmost point of the baseline. The baseline is a horizontal line with the specified length. Scale marks and labels are drawn below the baseline. 
.IP "\fBQwtScaleDraw::Round \fP" 1c
The origin is the top left corner of the bounding rectangle of the baseline circle. The baseline is the segment of a circle with a diameter of the specified length. Scale marks and labels are drawn outside the baseline circle.
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\fBParameters:\fP
.RS 4
\fIxorigin\fP x coordinate of the origin 
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\fIyorigin\fP y coordinate of the origin 
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\fIlength\fP length or diameter of the scale, excluding border distance 
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\fIo\fP The orientation 
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.SS "void QwtScaleDraw::setLabelAlignment (int alignment)"
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Labels are aligned to the point ticklength + margin away from the backbone. The alignment is relative to the orientation of the label text. In case of an alignment of 0 the label will be aligned depending on the orientation of the scale:
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QwtScaleDraw::Top: Qt::AlignHCenter | Qt::AlignTop
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 QwtScaleDraw::Bottom: Qt::AlignHCenter | Qt::AlignBottom
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 QwtScaleDraw::Left: Qt::AlignLeft | Qt::AlignVCenter
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 QwtScaleDraw::Right: Qt::AlignRight | Qt::AlignVCenter
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Changing the alignment is often necessary for rotated labels.
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\fBParameters:\fP
.RS 4
\fIalignment\fP Or'd Qt::AlignmentFlags <see qnamespace.h> 
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\fBWarning:\fP
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Alignment of labels is not implemented for round scales. 
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\fBSee also:\fP
.RS 4
\fBQwtScaleDraw::setLabelRotation()\fP, \fBQwtScaleDraw::labelRotation()\fP, \fBQwtScaleDraw::labelAlignment()\fP 
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.SS "void QwtScaleDraw::setLabelFormat (char f, int prec, int fieldwidth = 0)"
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Set the number format for the major scale labels. Format character and precision have the same meaning as for the QString class. 
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\fBParameters:\fP
.RS 4
\fIf\fP format character, 'g', 'e' or 'f' 
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\fIprec\fP precision(f) or significance(g) 
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\fIfieldwidth\fP fieldwidth 
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\fBSee also:\fP
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QString::sprintf in the Qt manual 
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.SS "void QwtScaleDraw::setLabelRotation (double rotation)"
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Rotate all labels.
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\fBParameters:\fP
.RS 4
\fIrotation\fP Angle in degrees. When changing the label rotation, the label alignment might be adjusted too. 
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\fBSee also:\fP
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\fBsetLabelAlignment()\fP, \fBlabelRotation()\fP, \fBlabelAlignment()\fP. 
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\fBWarning:\fP
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Rotation of labels is not implemented for round scales. 
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.SS "void QwtScaleDraw::setMargin (uint hMargin, uint vMargin)"
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Set the margins of the ticks
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\fBParameters:\fP
.RS 4
\fIhMargin\fP Horizontal margin 
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\fIvMargin\fP Vertical margin 
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.SS "void QwtScaleDraw::setScale (double x1, double x2, int maxMajIntv, int maxMinIntv, double step = 0.0, int logscale = 0)"
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Adjust the range of the scale. If step == 0.0, the step width is calculated automatically dependent on the maximal number of scale ticks. 
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\fBParameters:\fP
.RS 4
\fIx1\fP Value at the left/low endpoint of the scale 
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\fIx2\fP Value at the right/high endpoint of the scale 
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\fImaxMajIntv\fP Max. number of major step intervals 
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\fImaxMinIntv\fP Max. number of minor step intervals 
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\fIstep\fP Step size (default : 0.0) 
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\fIlogscale\fP Logarithmic scale (default : 0) 
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.SS "void QwtScaleDraw::setScale (const \fBQwtScaleDiv\fP & sd)"
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Change the scale division. \fBParameters:\fP
.RS 4
\fIsd\fP new scale division 
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.SS "void QwtScaleDraw::setTickLength (unsigned int minLen, unsigned int medLen, unsigned int majLen)"
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Set the length of the ticks 
.SS "void QwtScaleDraw::tickLength (unsigned int & minLen, unsigned int & medLen, unsigned int & majLen) const"
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Return the length of the ticks 
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\fBSee also:\fP
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\fBQwtScaleDraw::majTickLength()\fP 
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.SS "int QwtScaleDraw::x () const"
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Return x origin. 
.SS "int QwtScaleDraw::y () const"
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Return y origin. 

.SH "Author"
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