ArrowItem Class Reference

#include <ArrowItem.h>

Inherits FillItem.

Public Member Functions
	ArrowItem (int posX, int posY, int groupNr, const QColor &color, int endX, int endY)
virtual	~ArrowItem ()
DrawType	getType ()
void	draw (QPainter *painter, QRectF &source, QRectF &target)
Public Member Functions inherited from FillItem
	FillItem (int posX, int posY, int groupNr, const QColor &color)
bool	isDrawBorder ()
QColor *	getInteriorColor ()
void	setDrawBorder (bool drawBorder)
void	setInteriorColor (QColor *interiorColor)
void	draw (QPainter *painter, QRectF &source, QRectF &target)
Public Member Functions inherited from DrawItem
	DrawItem (int posX, int posY, int groupNr, const QColor &color)
virtual	~DrawItem ()
bool	operator== (const DrawItem &other)
virtual void	renderOnGl (QGLWidget &widget, QRectF &source, QRectF &target)
int	getPosY ()
int	getGroupNr ()
QColor	getColor ()
void	setPosX (int posX)
void	setPosY (int posY)
void	setGroupNr (int groupNr)
void	setColor (const QColor &color)
int	getLineWidth ()
Qt::PenStyle	getPenStyle ()
Qt::PenCapStyle	getPenCapStyle ()
void	setLineWidth (int lineWidth)
void	setPenStyle (Qt::PenStyle penStyle)
void	setPenCapStyle (Qt::PenCapStyle penCapStyle)
int	getID () const
void	openGL (bool value)
bool	onOpenGL ()
void	setPosFactor (float fx, float fy)

Additional Inherited Members
Public Slots inherited from DrawItem
int	getPosX ()
Protected Member Functions inherited from FillItem
void	addBrushStyle (QPainter *painter)
Protected Member Functions inherited from DrawItem
void	addPenStyle (QPainter *painter)
Protected Attributes inherited from FillItem
bool	drawBorder
QColor *	interiorColor
Protected Attributes inherited from DrawItem
int	groupNr
int	posX
int	posY
QColor	color
int	lineWidth
Qt::PenCapStyle	penCapStyle
Qt::PenStyle	penStyle
int	m_id
float	position_factor_x
float	position_factor_y
bool	brender_on_opengl
Static Protected Attributes inherited from DrawItem
static int	_ID = 0

Detailed Description

Arrow shape. This also gives an xample of how to create items that are not composed of multiple shapes. The arrow is composed of a line and a polygon which resides at the end of the line. The endX and endY positions are the end positions of the line. the arrowhead will reside at 10 + (2*lineWidth) further along the line.

Definition at line 23 of file ArrowItem.h.

Constructor & Destructor Documentation

ArrowItem()

ArrowItem::ArrowItem	(	int	posX,
		int	posY,
		int	groupNr,
		const QColor &	color,
		int	endX,
		int	endY
	)

Creates an arrowitem

Parameters

posX	the starting xposition of the line
posY	the starting y position of the line
groupNr	the group number
color	the color of the line and the border of the arrow
endX	the x end position of the line NOT the arrow
endY	the y end position of the line NOT the arrow

Definition at line 10 of file ArrowItem.cc.

      :FillItem(posX, posY, groupNr, color),endX(endX),endY(endY)
{

}

~ArrowItem()

ArrowItem::~ArrowItem ( )

virtual

Destructor

Definition at line 16 of file ArrowItem.cc.

{
}

Member Function Documentation

draw()

void ArrowItem::draw ( QPainter *  painter, QRectF &  source, QRectF &  target  )

virtual

See also

DrawItem::draw

Implements DrawItem.

Definition at line 20 of file ArrowItem.cc.

{
    FillItem::draw(painter,source,target);
    QPen pen = painter->pen();
    painter->drawLine(posX, posY, endX, endY);
    double arrowWidth = 10 + (2*lineWidth);
    double deltaX = endX - posX;
    double deltaY = endY - posY;
    double xLength = pow(deltaX, 2);
    double yLength = pow(deltaY, 2);
    double total = sqrt(xLength + yLength);
    double sumX = arrowWidth*(-deltaY/total);
    double sumY = arrowWidth*(deltaX/total);
    QPoint* points = new QPoint[3];
    points[0] = QPoint(endX - sumX, endY - sumY);
    points[1] = QPoint(endX + sumX, endY + sumY);
    points[2] = QPoint(endX + arrowWidth*(deltaX/total), endY + arrowWidth*(deltaY/total));
    painter->drawPolygon(points, 3);
}

getType()

DrawType ArrowItem::getType ( )

inlinevirtual

Returns DrawTYpe::Arrow

Returns

DrawTYpe::Arrow

Implements DrawItem.

Definition at line 44 of file ArrowItem.h.

{return Arrow;};

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

• /build/rock-master-18.09-gui-rock-widget-collection-0.20180124/src/generic_widgets/ArrowItem.h
• /build/rock-master-18.09-gui-rock-widget-collection-0.20180124/src/generic_widgets/ArrowItem.cc