Qwt Polar User's Guide
0.1.0
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#include <qwt_polar_layout.h>
Public Types | |
enum | Options { IgnoreScrollbars = 1, IgnoreFrames = 2, IgnoreTitle = 4, IgnoreLegend = 8 } |
Public Member Functions | |
QwtPolarLayout () | |
virtual | ~QwtPolarLayout () |
void | setLegendPosition (QwtPolarPlot::LegendPosition pos, double ratio) |
void | setLegendPosition (QwtPolarPlot::LegendPosition pos) |
QwtPolarPlot::LegendPosition | legendPosition () const |
void | setLegendRatio (double ratio) |
double | legendRatio () const |
virtual QSize | minimumSizeHint (const QwtPolarPlot *) const |
virtual void | activate (const QwtPolarPlot *, const QRect &rect, int options=0) |
virtual void | invalidate () |
const QRect & | titleRect () const |
const QRect & | legendRect () const |
const QRect & | canvasRect () const |
Protected Member Functions | |
QRect | layoutLegend (int options, const QRect &) const |
Layout class for QwtPolarPlot.
Organizes the geometry for the different QwtPolarPlot components. It is used by the QwtPolar widget to organize its internal widgets or by QwtPolarPlot::renderTo() to render its content to a QPaintDevice like a QPrinter, QPixmap/QImage or QSvgRenderer.
Options to configure the plot layout engine
QwtPolarLayout::QwtPolarLayout | ( | ) | [explicit] |
Constructor.
QwtPolarLayout::~QwtPolarLayout | ( | ) | [virtual] |
Destructor.
void QwtPolarLayout::activate | ( | const QwtPolarPlot * | plot, |
const QRect & | boundingRect, | ||
int | options = 0 |
||
) | [virtual] |
Recalculate the geometry of all components.
plot | Plot to be layout |
boundingRect | Rect where to place the components |
options | Options |
const QRect & QwtPolarLayout::canvasRect | ( | ) | const |
void QwtPolarLayout::invalidate | ( | ) | [virtual] |
Invalidate the geometry of all components.
QRect QwtPolarLayout::layoutLegend | ( | int | options, |
const QRect & | rect | ||
) | const [protected] |
Find the geometry for the legend
options | Options how to layout the legend |
rect | Rectangle where to place the legend |
double QwtPolarLayout::legendRatio | ( | ) | const |
const QRect & QwtPolarLayout::legendRect | ( | ) | const |
QSize QwtPolarLayout::minimumSizeHint | ( | const QwtPolarPlot * | ) | const [virtual] |
Return a minimum size hint.
void QwtPolarLayout::setLegendPosition | ( | QwtPolarPlot::LegendPosition | pos, |
double | ratio | ||
) |
Specify the position of the legend.
pos | The legend's position. |
ratio | Ratio between legend and the bounding rect of title, canvas and axes. The legend will be shrinked if it would need more space than the given ratio. The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0 it will be reset to the default ratio. The default vertical/horizontal ratio is 0.33/0.5. |
Specify the position of the legend.
pos | The legend's position. Valid values are QwtPolarPlot::LeftLegend , QwtPolarPlot::RightLegend , QwtPolarPlot::TopLegend , QwtPolarPlot::BottomLegend . |
void QwtPolarLayout::setLegendRatio | ( | double | ratio | ) |
Specify the relative size of the legend in the plot
ratio | Ratio between legend and the bounding rect of title, canvas and axes. The legend will be shrinked if it would need more space than the given ratio. The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0 it will be reset to the default ratio. The default vertical/horizontal ratio is 0.33/0.5. |
const QRect & QwtPolarLayout::titleRect | ( | ) | const |