Base class for 2-dimensional plotter widgets. More...

#include <plotterbase.h>

Inheritance diagram for QSint::PlotterBase:

Signals
void	entered (const QModelIndex &index)

void	pressed (const QModelIndex &index)
	Emitted when the mouse button has been pressed over the data item at index.

void	clicked (const QModelIndex &index)
	Emitted when the mouse button has been clicked over the data item at index.

void	doubleClicked (const QModelIndex &index)
	Emitted when the mouse button has been double clicked over the data item at index.

Public Member Functions
void	setBorderPen (const QPen &pen)
	Sets pen of the plotter's border to pen.

const QPen &	borderPen () const
	Retrieves plotter's border pen.

void	setBackground (const QBrush &brush)
	Sets plotter's background to brush.

const QBrush &	background () const
	Retrieves plotter background.

void	setFont (const QFont &font)
	Sets font of the data item to font.

const QFont &	font () const
	Retrieves data item font.

void	setItemPen (const QPen &pen)
	Sets pen of the data item to pen.

void	setHighlightTextColor (const QColor &color)
	Sets color of the highlighted data item text to color.

const QColor &	highlightTextColor () const
	Retrieves highlighted data item text color.

void	setHighlightPen (const QPen &pen)
	Sets pen of the highlighted data item to pen.

const QPen &	highlightPen () const
	Retrieves highlighted data item pen.

void	setHighlightBrush (const QBrush &brush)
	Sets brush of the highlighted data item to brush.

const QBrush &	highlightBrush () const
	Retrieves highlighted data item brush.

void	setHighlightAlpha (double alpha)

double	highlightAlpha () const
	Retrieves highlighted data item opacity.

void	setAntiAliasing (bool set)
	Enables (set=true, the default) or disables (set=false) painter's antialiasing.

AxisBase *	axisX () const
	Retrieves X axis object.

AxisBase *	axisY () const
	Retrieves Y axis object.

void	setModel (QAbstractItemModel *model)
	Sets data model to model.

QAbstractItemModel *	model () const
	Retrieves active data model or NULL if not set.

QRect	dataRect () const
	Retrieves data rectangle (excluding margins and axes).

const QPoint &	mousePos () const
	Retrieves current mouse cursor position in local coordinates.

QPoint	globalMousePos () const
	Retrieves current mouse cursor position in global coordinates.

const QModelIndex &	highlightedIndex () const
	Retrieves highlighted data model index, or invalid QModelIndex if nothing highlighted.

Protected Member Functions
virtual void	drawBackground (QPainter &p)
	Draws default background of the plotter.

virtual void	drawForeground (QPainter &p)
	Draws default foreground of the plotter.

virtual void	drawAxes (QPainter &p)
	Draws axes of the plotter.

virtual void	drawContent (QPainter &p)=0
	Draws content of the plotter.

Detailed Description

Base class for 2-dimensional plotter widgets.

Since: 0.2.1

Class provides basic grid and background painting and user interaction handling.

It has easy-to-use API and performs fast "native" painting (directly via QPainter).

Class is intended to be a basic for the charting widgets supporting MVC ideology and using QAbstractItemModel as data source. The model is to be set via setModel() method.

By default it is assumed that the model has 2-dimensional tabular structure. Each model row represents corresponding value on the X axis, with the column data values placed on Y axis. Axes could be accessed via axisX() and axisY() methods.

Member Function Documentation

void QSint::PlotterBase::entered ( const QModelIndex & index )

signal

Emitted when the data item at index has been entered by the mouse cursor. If index is invalid that means entering the space without data.

void QSint::PlotterBase::setHighlightAlpha ( double alpha )

Sets opacity of the highlighted data item to alpha. Value should be in ranges between 0.1 and 1.0, 1.0 is the default.

The documentation for this class was generated from the following files:

src/Charts/plotterbase.h
src/Charts/plotterbase.cpp

Signals

Public Member Functions

Protected Member Functions

Detailed Description

Member Function Documentation