DtLineDrawer Class Reference

Qt includes. More...

Inheritance diagram for DtLineDrawer:

List of all members.

Public Member Functions
	DtLineDrawer ()
virtual	~DtLineDrawer ()
virtual bool	draw (QPainter &paint, const DtSymbol *const symbol) const
	draws the specified symbol on a device.
virtual QSize	calcBBox (const DtSymbol *const symbol) const
	Calculate the drawn size of this symbol.
virtual void	setPenThickness (int thickness)
	Set the thickness of the pen when drawing the lines;.
virtual void	setArrowStyle (DtLineSymbol::DtArrowStyle style)
	Sets the arrow style to be this style regardless of what is set in the symbol.
virtual void	clearArrowStyleOverride ()
virtual void	setPenStyle (Qt::PenStyle style)
	Sets the pen style to be this style regardless of what is set in the symbol.
virtual void	clearPenStyleOverride ()
Static Public Member Functions
static void	drawClippedLine (QPainterPath &path, QPainter &paint, const QPoint &point)
	This method draws a line from the QPainterPaths's current position to the given point.
static void	drawClippedLine (QPainter &paint, const QPoint &start, const QPoint &end)
static DtSymbolDrawer *	create ()
Protected Member Functions
virtual void	drawSimpleArrow (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawMainArrow (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawRearArrow (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawCappedSides (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawTriangle (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawThickArrow (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawThickDoubleArrow (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawFeintArrow (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	draw2525TailArrow (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
virtual void	drawBridge (QPainterPath &path, QPainter &paint, const DtLineSymbol *const arrowSymbol) const
Protected Attributes
int	myPenThickness
DtLineSymbol::DtArrowStyle	myArrowStyle
bool	myArrowStyleOverride
Qt::PenStyle	myPenStyle
bool	myPenStyleOverride
Private Member Functions
	DtLineDrawer (const DtLineDrawer &orig)
DtLineDrawer &	operator= (const DtLineDrawer &orig)

---

Detailed Description

Qt includes.

Concrete class which draws arrows and lines. Arrows draw from the start position to the end position, i.e. the arrow is on the end position.

---

Constructor & Destructor Documentation

DtLineDrawer::DtLineDrawer

(

)

virtual DtLineDrawer::~DtLineDrawer

(

)

[virtual]

DtLineDrawer::DtLineDrawer

(

const DtLineDrawer &

orig

)

[private]

---

Member Function Documentation

virtual bool DtLineDrawer::draw	(	QPainter &	paint,
		const DtSymbol *const	symbol
	)		const [virtual]

draws the specified symbol on a device.

The symbol must be of a DtLineSymbol type or nothing will be drawn.

Returns:

true if successful, false otherwise.

Implements DtSymbolDrawer.

Reimplemented in DtMultiLineDrawer.

static void DtLineDrawer::drawClippedLine	(	QPainterPath &	path,
		QPainter &	paint,
		const QPoint &	point
	)		[static]

This method draws a line from the QPainterPaths's current position to the given point.

It insures that if either of the endpoints of the line are beyond the limits of screen's coordinate system, they will be drawn properly. If the line is completely undrawable, the QPainterPaths's position will be manually moved to the endpoint even though the line is not drawn.

static void DtLineDrawer::drawClippedLine	(	QPainter &	paint,
		const QPoint &	start,
		const QPoint &	end
	)		[static]

virtual QSize DtLineDrawer::calcBBox

(

const DtSymbol *const

symbol

)

const [virtual]

Calculate the drawn size of this symbol.

The symbol must be of a type this drawer can recognize.

Implements DtSymbolDrawer.

Reimplemented in DtMultiLineDrawer.

virtual void DtLineDrawer::setPenThickness

(

int

thickness

)

[virtual]

Set the thickness of the pen when drawing the lines;.

virtual void DtLineDrawer::setArrowStyle

(

DtLineSymbol::DtArrowStyle

style

)

[virtual]

Sets the arrow style to be this style regardless of what is set in the symbol.

To turn this off call clearArrowStyleOverride()

virtual void DtLineDrawer::clearArrowStyleOverride

(

)

[virtual]

virtual void DtLineDrawer::setPenStyle

(

Qt::PenStyle

style

)

[virtual]

Sets the pen style to be this style regardless of what is set in the symbol.

To turn this off, call clearPenStyleOverride()

virtual void DtLineDrawer::clearPenStyleOverride

(

)

[virtual]

static DtSymbolDrawer* DtLineDrawer::create

(

)

[static]

Reimplemented in DtMultiLineDrawer.

DtLineDrawer& DtLineDrawer::operator=

(

const DtLineDrawer &

orig

)

[private]

virtual void DtLineDrawer::drawSimpleArrow	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawMainArrow	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawRearArrow	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawCappedSides	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawTriangle	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawThickArrow	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawThickDoubleArrow	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawFeintArrow	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

Reimplemented in DtMultiLineDrawer.

virtual void DtLineDrawer::draw2525TailArrow	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

virtual void DtLineDrawer::drawBridge	(	QPainterPath &	path,
		QPainter &	paint,
		const DtLineSymbol *const	arrowSymbol
	)		const [protected, virtual]

---

Member Data Documentation

int DtLineDrawer::myPenThickness [protected]

DtLineSymbol::DtArrowStyle DtLineDrawer::myArrowStyle [protected]

bool DtLineDrawer::myArrowStyleOverride [protected]

Qt::PenStyle DtLineDrawer::myPenStyle [protected]

bool DtLineDrawer::myPenStyleOverride [protected]

---

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

• include/symbolDrawer/lineDrawer.h