#include <qwt_plot_layout.h>
Public Types | |
enum | Options { AlignScales = 1, IgnoreScrollbars = 2, IgnoreFrames = 4, IgnoreMargin = 8, IgnoreLegend = 16 } |
Public Member Functions | |
QwtPlotLayout () | |
virtual | ~QwtPlotLayout () |
void | setMargin (int) |
int | margin () const |
void | setCanvasMargin (int margin, int axis=-1) |
int | canvasMargin (int axis) const |
void | setAlignCanvasToScales (bool) |
bool | alignCanvasToScales () const |
void | setSpacing (int) |
int | spacing () const |
void | setLegendPosition (QwtPlot::LegendPosition pos, double ratio) |
void | setLegendPosition (QwtPlot::LegendPosition pos) |
QwtPlot::LegendPosition | legendPosition () const |
void | setLegendRatio (double ratio) |
double | legendRatio () const |
virtual QSize | minimumSizeHint (const QwtPlot *) const |
virtual void | activate (const QwtPlot *, const QRect &rect, int options=0) |
virtual void | invalidate () |
const QRect & | titleRect () const |
const QRect & | legendRect () const |
const QRect & | scaleRect (int axis) const |
const QRect & | canvasRect () const |
Protected Member Functions | |
QRect | layoutLegend (int options, const QRect &) const |
QRect | alignLegend (const QRect &canvasRect, const QRect &legendRect) const |
void | expandLineBreaks (int options, const QRect &rect, int &dimTitle, int dimAxes[QwtPlot::axisCnt]) const |
void | alignScales (int options, QRect &canvasRect, QRect scaleRect[QwtPlot::axisCnt]) const |
It is used by the QwtPlot widget to organize its internal widgets or by QwtPlot::print() to render its content to a QPaintDevice like a QPrinter, QPixmap/QImage or QSvgRenderer.
Options to configure the plot layout engine
QwtPlotLayout::QwtPlotLayout | ( | ) | [explicit] |
Constructor.
QwtPlotLayout::~QwtPlotLayout | ( | ) | [virtual] |
Destructor.
void QwtPlotLayout::activate | ( | const QwtPlot * | plot, | |
const QRect & | plotRect, | |||
int | options = 0 | |||
) | [virtual] |
Recalculate the geometry of all components.
plot | Plot to be layout | |
plotRect | Rect where to place the components | |
options | Options |
bool QwtPlotLayout::alignCanvasToScales | ( | ) | const |
Return the align-canvas-to-axis-scales setting. The canvas may:
QRect QwtPlotLayout::alignLegend | ( | const QRect & | canvasRect, | |
const QRect & | legendRect | |||
) | const [protected] |
Align the legend to the canvas
canvasRect | Geometry of the canvas | |
legendRect | Maximum geometry for the legend |
void QwtPlotLayout::alignScales | ( | int | options, | |
QRect & | canvasRect, | |||
QRect | scaleRect[QwtPlot::axisCnt] | |||
) | const [protected] |
int QwtPlotLayout::canvasMargin | ( | int | axis | ) | const |
const QRect & QwtPlotLayout::canvasRect | ( | ) | const |
void QwtPlotLayout::expandLineBreaks | ( | int | options, | |
const QRect & | rect, | |||
int & | dimTitle, | |||
int | dimAxis[QwtPlot::axisCnt] | |||
) | const [protected] |
Expand all line breaks in text labels, and calculate the height of their widgets in orientation of the text.
options | Options how to layout the legend | |
rect | Bounding rect for title, axes and canvas. | |
dimTitle | Expanded height of the title widget | |
dimAxis | Expanded heights of the axis in axis orientation. |
void QwtPlotLayout::invalidate | ( | ) | [virtual] |
Invalidate the geometry of all components.
QRect QwtPlotLayout::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 |
QwtPlot::LegendPosition QwtPlotLayout::legendPosition | ( | ) | const |
double QwtPlotLayout::legendRatio | ( | ) | const |
const QRect & QwtPlotLayout::legendRect | ( | ) | const |
int QwtPlotLayout::margin | ( | ) | const |
QSize QwtPlotLayout::minimumSizeHint | ( | const QwtPlot * | plot | ) | const [virtual] |
const QRect & QwtPlotLayout::scaleRect | ( | int | axis | ) | const |
void QwtPlotLayout::setAlignCanvasToScales | ( | bool | alignCanvasToScales | ) |
Change the align-canvas-to-axis-scales setting. The canvas may:
alignCanvasToScales | New align-canvas-to-axis-scales setting |
void QwtPlotLayout::setCanvasMargin | ( | int | margin, | |
int | axis = -1 | |||
) |
Change a margin of the canvas. The margin is the space above/below the scale ticks. A negative margin will be set to -1, excluding the borders of the scales.
margin | New margin | |
axis | One of QwtPlot::Axis. Specifies where the position of the margin. -1 means margin at all borders. |
void QwtPlotLayout::setLegendPosition | ( | QwtPlot::LegendPosition | pos | ) |
Specify the position of the legend.
pos | The legend's position. Valid values are QwtPlot::LeftLegend , QwtPlot::RightLegend , QwtPlot::TopLegend , QwtPlot::BottomLegend . |
void QwtPlotLayout::setLegendPosition | ( | QwtPlot::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. |
void QwtPlotLayout::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. |
void QwtPlotLayout::setMargin | ( | int | margin | ) |
Change the margin of the plot. The margin is the space around all components.
margin | new margin |
void QwtPlotLayout::setSpacing | ( | int | spacing | ) |
Change the spacing of the plot. The spacing is the distance between the plot components.
spacing | new spacing |
int QwtPlotLayout::spacing | ( | ) | const |
const QRect & QwtPlotLayout::titleRect | ( | ) | const |