te::qt::widgets::ChartRenderer Class Reference

A concrete chart renderer based on Qt4. More...

#include <ChartRenderer.h>

Inheritance diagram for te::qt::widgets::ChartRenderer:

Public Member Functions
	ChartRenderer ()
	Default constructor.
te::color::RGBAColor **	render (const te::map::Chart *chart, const std::map< std::string, double > &chartValue, std::size_t &width)
te::color::RGBAColor **	render (const te::map::Chart *chart, const te::da::DataSet *dataset, std::size_t &width)
	It generates the image pattern from the given chart and the current element of dataset.
	~ChartRenderer ()
	Destructor.

Internal methods of Qt4 Chart Renderer.
Methods that manipulate Qt4 concepts like QPainter, QImage, QBrush, QPen, QPainterPath, etc.
QPainter	m_painter
	The painter used to draw the chart.
QPen	m_pen
	The pen used to draw the chart.
QBrush	m_brush
	The pen used to draw the chart.
void	setup (QImage *img)
	Setups the internal QPainter and associates it with the given paint device (QImage).
void	end ()
	Finalizes the internal QPainter resources.
QImage *	drawPies (const te::map::Chart *chart, const te::da::DataSet *dataset, std::size_t &width)
QImage *	drawPies (const te::map::Chart *chart, const std::map< std::string, double > &chartValue, std::size_t &width)
QImage *	drawBars (const te::map::Chart *chart, const te::da::DataSet *dataset, std::size_t &width)
QImage *	drawBars (const te::map::Chart *chart, const std::map< std::string, double > &chartValue, std::size_t &width)
void	getValues (const te::map::Chart *chart, const te::da::DataSet *dataset, std::vector< double > &values)
void	getValues (const te::map::Chart *chart, const std::map< std::string, double > &chartValue, std::vector< double > &values)
double	computeSum (const std::vector< double > &values)
double	getMaxValue (const std::vector< double > &values)

Detailed Description

A concrete chart renderer based on Qt4.

See also

AbstractChartRenderer

Definition at line 53 of file ChartRenderer.h.

Constructor & Destructor Documentation

ChartRenderer()

te::qt::widgets::ChartRenderer::ChartRenderer

(

)

Default constructor.

~ChartRenderer()

te::qt::widgets::ChartRenderer::~ChartRenderer

(

)

Destructor.

Member Function Documentation

computeSum()

double te::qt::widgets::ChartRenderer::computeSum ( const std::vector< double > &  values )

protected

drawBars() [1/2]

QImage * te::qt::widgets::ChartRenderer::drawBars ( const te::map::Chart *  chart, const std::map< std::string, double > &  chartValue, std::size_t &  width  )

protected

drawBars() [2/2]

QImage * te::qt::widgets::ChartRenderer::drawBars ( const te::map::Chart *  chart, const te::da::DataSet *  dataset, std::size_t &  width  )

protected

drawPies() [1/2]

QImage * te::qt::widgets::ChartRenderer::drawPies ( const te::map::Chart *  chart, const std::map< std::string, double > &  chartValue, std::size_t &  width  )

protected

drawPies() [2/2]

QImage * te::qt::widgets::ChartRenderer::drawPies ( const te::map::Chart *  chart, const te::da::DataSet *  dataset, std::size_t &  width  )

protected

end()

void te::qt::widgets::ChartRenderer::end ( )

protected

Finalizes the internal QPainter resources.

getMaxValue()

double te::qt::widgets::ChartRenderer::getMaxValue ( const std::vector< double > &  values )

protected

getValues() [1/2]

void te::qt::widgets::ChartRenderer::getValues ( const te::map::Chart *  chart, const std::map< std::string, double > &  chartValue, std::vector< double > &  values  )

protected

getValues() [2/2]

void te::qt::widgets::ChartRenderer::getValues ( const te::map::Chart *  chart, const te::da::DataSet *  dataset, std::vector< double > &  values  )

protected

render() [1/2]

te::color::RGBAColor ** te::qt::widgets::ChartRenderer::render ( const te::map::Chart *  chart, const std::map< std::string, double > &  chartValue, std::size_t &  width  )

virtual

Implements te::map::AbstractChartRenderer.

render() [2/2]

te::color::RGBAColor ** te::qt::widgets::ChartRenderer::render ( const te::map::Chart *  chart, const te::da::DataSet *  dataset, std::size_t &  width  )

virtual

It generates the image pattern from the given chart and the current element of dataset.

Parameters

chart	The chart informations that will be used.
dataset	The dataset that will be used.
width	An output parameter that will be filled with the width of generated image pattern.

Returns

The RGBA image that represents the chart.

Note

The caller will take the ownership of the returned pointer.

Implements te::map::AbstractChartRenderer.

setup()

void te::qt::widgets::ChartRenderer::setup ( QImage *  img )

protected

Setups the internal QPainter and associates it with the given paint device (QImage).

Member Data Documentation

m_brush

QBrush te::qt::widgets::ChartRenderer::m_brush

private

The pen used to draw the chart.

Definition at line 101 of file ChartRenderer.h.

m_painter

QPainter te::qt::widgets::ChartRenderer::m_painter

private

The painter used to draw the chart.

Definition at line 99 of file ChartRenderer.h.

m_pen

QPen te::qt::widgets::ChartRenderer::m_pen

private

The pen used to draw the chart.

Definition at line 100 of file ChartRenderer.h.

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

• /home/castejon/castejon_files/develop/terralib5/git_release/src/terralib/qt/widgets/charts/ChartRenderer.h