e$\ddlmZddlmZddlmZmZdgZGddejZ y))hypot) functions)QtGui QtWidgets ArrowItemcDeZdZdZddZdZfdZdZddZdZ xZ S) rzv For displaying scale-invariant arrows. For arrows pointing to a location on a curve, see CurveArrow c $i|_tjj||d|vr|d|d<d|vr|d|d<|j dd}ddd d d d d d ddd }|j ||j di||j|y )zr Arrows can be initialized with any keyword arguments accepted by the setStyle() method. sizeheadLenwidth headWidthpos)rrTijNr)rr)2rr) pxModeangler rtipAngle baseAngletailLen tailWidthpenbrush)optsrQGraphicsPathItem__init__popupdatesetStylesetPos)selfparentrr defaultOptss C/usr/lib/python3/dist-packages/pyqtgraph/graphicsItems/ArrowItem.pyr zArrowItem.__init__s  ##,,T6: T>"6lDO d? $W D hhuf%     4  $ $  Sc gd}gd|z}d}|jD]F\}}||vrtd|z|jj||k7rd}||j|<H|syt |Dcgc]"}||jvs||j|f$c}}t j }|j|jd|jtjd i||_ |j|j|jtj|jd|jtj |jd |jd r7|j#|j%|j&j(zy|j#|j%|j&j(zycc}w) a Changes the appearance of the arrow. All arguments are optional: ====================== ================================================= **Keyword Arguments:** angle Orientation of the arrow in degrees. Default is 0; arrow pointing to the left. headLen Length of the arrow head, from tip to base. default=20 headWidth Width of the arrow head at its base. If headWidth is specified, it overrides tipAngle. tipAngle Angle of the tip of the arrow in degrees. Smaller values make a 'sharper' arrow. default=25 baseAngle Angle of the base of the arrow head. Default is 0, which means that the base of the arrow head is perpendicular to the arrow tail. tailLen Length of the arrow tail, measured from the base of the arrow head to the end of the tail. If this value is None, no tail will be drawn. default=None tailWidth Width of the tail. default=3 pen The pen used to draw the outline of the arrow. brush The brush used to fill the arrow. pxMode If True, then the arrow is drawn as a fixed size regardless of the scale of its parents (including the ViewBox zoom level). ====================== ================================================= )r rrrrr)rrrrFzInvalid arrow style option "%s"TNrrrrr)itemsKeyErrorrgetdictr QTransformrotatemapfn makeArrowPathpathsetPathsetPenmkPensetBrushmkBrushsetFlagsflagsGraphicsItemFlagItemIgnoresTransformations) r%r arrowOpts allowedOpts needUpdatekvopttrs r(r#zArrowItem.setStyle1s<^ 9IE  ::< CAa #@1DEEyy}}Q1$! DIIaL   iJ1 >Qtyy|$JK     $))G$%FF2++2c23  TYY BHHTYYu-./ bjj7!345 99X  MM$**,)>)>)Y)YY Z MM$**,$*?*?*Z*Z)ZZ [Ks 3G7G7c|jtjjjt ||g|yN) setRenderHintrQPainter RenderHint Antialiasingsuperpaint)r%pargs __class__s r(rLzArrowItem.paintks0 11>>?  a$r)c|jSrF)r4)r%s r(shapezArrowItem.shapessyyr)cTd}|j}|js|jdz}|jdrddgS|j }|dk(r&|j |z |j |zgS|j|z |j|zgS)Nrea?r) r isCosmeticr r boundingRectleftrighttopbottom)r%axfrac orthoRangepwrbrs r( dataBoundszArrowItem.dataBoundszs hhj~~v%B 99X a5L""$BQw " bhhjm44 RYY[^44r)cd}|jdr;|j}|t|j|j z }|j }|j r |td|jdzz }|S)NrrrS)rrUrr heightrrTmax)r%padr^rs r( pixelPaddingzArrowItem.pixelPaddingst 99X ""$B 5RYY[1 1Chhj >>  3q#))+&/ /C r)rF) __name__ __module__ __qualname____doc__r r#rLrQr_re __classcell__)rOs@r(rrs)B8\t  5r)N) mathrrr2Qtrr__all__rrrr)r(ros)! -H ++Hr)