RenderThread Class Reference

#include <renderthread.h>

Inheritance diagram for RenderThread:

Signals
void	renderedImage (const QImage &image)
void	setStatus (QString s)

Public Member Functions
	RenderThread (QObject *parent=0)
	~RenderThread ()
void	render (Graph *g, QSize resSize, QPen ePen, QBrush nBrush, QPen nPen, double nRad, bool vEdges=true, bool vNodes=true, bool vDescr=true, bool w=false, bool b=false)

Protected Member Functions
void	run ()
QPointF	getWindowCoordinate (QPointF point)
QPolygonF	getWindowCoordinates (QPolygonF poly)

Protected Attributes
Graph *	graph
QMutex	mutex
QWaitCondition	condition
QSize	resultSize
bool	restart
bool	abort
bool	visibleEdges
bool	visibleNodes
bool	showDescriptions
bool	wrap
bool	bundle
QPen	edgePen
QBrush	nodeBrush
QPen	nodePen
double	nodeRadius

Detailed Description

RenderThread subclasses QThread to perform the graph rendering in a different thread from the UI.

This prevents the UI from freezing while the rendering process is going on which is particularly essential for big graphs.

Constructor & Destructor Documentation

RenderThread::RenderThread

(

QObject *

parent = 0

)

Constructor for a new RenderThread

RenderThread::~RenderThread

(

)

Destructor for the RenderThread

Member Function Documentation

QPointF RenderThread::getWindowCoordinate ( QPointF  point )

inlineprotected

convert a normalized graph coordinate to window coordinate

Parameters

point

QPointF in normalized coordinates

Returns

the converted coordinate

QPolygonF RenderThread::getWindowCoordinates ( QPolygonF  poly )

inlineprotected

converts normalized graph coordinates to window coordinates for the entire polygon

Parameters

polygon

QPolygonF containing normalized coordinates

Returns

polygon with converted coordinates

void RenderThread::render	(	Graph *	g,
		QSize	resSize,
		QPen	ePen,
		QBrush	nBrush,
		QPen	nPen,
		double	nRad,
		bool	vEdges = true,
		bool	vNodes = true,
		bool	vDescr = true,
		bool	w = false,
		bool	b = false
	)

function call to start the rendering of the thread. The function is passed all the necessary arguments, which it copies to local variables

Parameters

g	Graph to be rendered
resSize	size of the current viewport
ePen	QPen containing the properties for edge drawing
nBrush	QBrush containing the properties for the node fill
nPen	QPen containing the properties for the node outline
nRad	QPen containing the properties for the node outline
vEdges	bool determining the visibility of the edges
vNodes	bool determining the visibility of the nodes
w	bool determining whether the edges are allowed to wrap
b	bool determining whether the rendering should draw bundled edges

void RenderThread::renderedImage ( const QImage &  image )

signal

emits a rendered image when the render thread has finished

void RenderThread::run ( )

protected

main thread method

void RenderThread::setStatus ( QString  s )

signal

signal to notify the main window's status bar of the progress of graph generation

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

• src/renderthread.h
• src/renderthread.cpp