Re: [PyKDE] Aligning Text in a Table
On Sun, Jun 29, 2003 at 09:39:20PM +0200, Simon Edwards wrote: Hi, On Sunday 29 June 2003 01:00, Bob Parnes wrote: I did not read your post carefully enough and thought that I had to make the call to paintCell. However, it is confusing, because now I do not understand the purpose of the arguments beyond the row and column. The other args specify if the cell is selected (and therefore should be drawn in the selected state) and which colours should be used etc. Anyway, I did manage to successfully draw an example, so long as the code was in the paintCell implementation. That is correct. But I could not write to the table at a later time. * BobTable stores the contents of the cells somewhere. (array of strings if the cells hold strings etc). * paintCell() looks up the contents of the cell (i.e. grab it's string contents) and draws the string on the QPainter object. * BobTable has a method for changing a cell's contents (i.e. setStuff(row,col,newstring) ) * setStuff() modifies the internal array of strings (cell contents) and then calls QTable's updateCell(row,col). This tells Qt to repaint (redraw) that cell. * When Qt is ready. Qt will call paintCell() for any cells that need repainting. For a C++ example of how to do this kind of thing look at Guarddog's checktablelistitem.cpp file: http://www.simonzone.com/software/guarddog/ cheers, -- Simon Edwards | Guarddog Firewall [EMAIL PROTECTED] | http://www.simonzone.com/software/ Nijmegen, The Netherlands | ZooTV? You made the right choice. ___ PyKDE mailing list[EMAIL PROTECTED] http://mats.imk.fraunhofer.de/mailman/listinfo/pykde Thanks. I just downloaded guarddog and will look it up. -- Bob Parnes [EMAIL PROTECTED] ___ PyKDE mailing list[EMAIL PROTECTED] http://mats.imk.fraunhofer.de/mailman/listinfo/pykde
Re: [PyKDE] Aligning Text in a Table
Hi, Thanks for your response. I got lost trying to follow your idea. In the past I have subclassed my own classes and reimplemented methods in order to make changes suiting the subclass. But here I cannot even make the simplest reimplementation of paintCell. For example, the method, def paintCell(self,p,row,col,r,selected): QTable.paintCell(self,p,row,col,r,selected) Does this work?: def paintCell(self,p,row,col,r,selected,cg): QTable.paintCell(self,p,row,col,r,selected,cg) Maybe PyQt doesn't have the 6 arg version (it's depreciated BTW), Furthermore, I don't know how to identify the QPainter object that Qt passes. I could not find any place in the documentation that describes how to do this. In my attempt above, I created one. e... You don't need to identify anything. YOu just draw with the QPainter that you get. cheers, -- Simon Edwards | Guarddog Firewall [EMAIL PROTECTED] | http://www.simonzone.com/software/ Nijmegen, The Netherlands | ZooTV? You made the right choice. ___ PyKDE mailing list[EMAIL PROTECTED] http://mats.imk.fraunhofer.de/mailman/listinfo/pykde
Re: [PyKDE] Aligning Text in a Table
On Saturday 28 June 2003 2:10 pm, Simon Edwards wrote: Hi, Thanks for your response. I got lost trying to follow your idea. In the past I have subclassed my own classes and reimplemented methods in order to make changes suiting the subclass. But here I cannot even make the simplest reimplementation of paintCell. For example, the method, def paintCell(self,p,row,col,r,selected): QTable.paintCell(self,p,row,col,r,selected) Does this work?: def paintCell(self,p,row,col,r,selected,cg): QTable.paintCell(self,p,row,col,r,selected,cg) Maybe PyQt doesn't have the 6 arg version (it's depreciated BTW), This was discussed on the mailing list within the last 2 weeks. Both the 6 and 7 argument variations are implemented but, because Python doesn't support function overloading, your re-implementation must handle both. In other words... def paintCell(self,p,row,col,r,selected,cg = None): if cg: QTable.paintCell(self,p,row,col,r,selected,cg) else: QTable.paintCell(self,p,row,col,r,selected) Phil ___ PyKDE mailing list[EMAIL PROTECTED] http://mats.imk.fraunhofer.de/mailman/listinfo/pykde
