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<TITLE>How to Manage highlight on QGraphicsView</TITLE>
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<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Hi all,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> have done an implementation of a</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">QGraphicsView</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> that allows me to</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">highlight</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">the</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">QGraphicsItem</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Each</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">QGraphicsItem</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> overwrite the</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">following</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> method:</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Class Circle(</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">QtGui.QGraphicsItem</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">):</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">…</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">.</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> def hoverEnterEvent(self, event):</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> self.setHiglight()</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> #this set the highlight color</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> self.update()</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> def hoverLeaveEvent(self, event):</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> self.setColor</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">()</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> #this set the</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">standard color</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> self.update()</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">If</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">I</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> create a line for</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">example</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> in 0,0,100,100 end</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">I</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> pa</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">ss over with the mouse pointer the entity is highlighted correctly.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">But if</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">I</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> create a circle in 0,0 with radius 200</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">I’</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">m not able to</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">highlight</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> the line ..</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">It seems that the</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">boundingRect</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> of the circle overlap the line ..</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> there is any way to avoid this overlapping ?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Or other smart metho</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">d to do the highlight of</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">a</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">QGraphicsItem</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">..?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Regards,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Matteo</FONT></SPAN></P>
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