Le 01/10/12 06:02, Shriramana Sharma a écrit : > Hello. With my work on a simple Cubic Bezier investigation application > in PyQt (attached, obviously under GPL), I ran into a curious > behaviour of the slider/spin (for the time along the curve) when > controlled by the keyboard. > > Steps: > 1. Let the focus be either on the slider (on the left) or the spin > (below it). (The default slider/spin value is 0.50.) > 3. Press up-arrow key to increase the slider/spin value. > > Observation: > The value will not increase past 0.56. > > Steps: > 4. Press down-arrow key to decrease the slider/spin value until 0.30. > 5. Press down-arrow once more. > > Observation: > The value jumps down from 0.30 to 0.28 even though the precision is set at > 0.01. > > Step: > 6. Press up-arrow. > > Observation: > The value will now not rise above 0.28. > > Step: > 7. Adjust the slider position using the mouse. > > Observation: > The value can change to any value in its full range from 0.00 to 1.00. > > Step: > 8. Adjust the slider using the mouse to go beyond 0.60. > 9. Press down-arrow to decrease the value until 0.59. > 10. Press down-arrow once more. > > Observation: > 11. The value jumps down to 0.56. > 12. It will no longer go above 0.56 using the keyboard (as before). > > Query: > My sliderMoved, spinChanged slots are straightforward, and just > convert the integer slider value to the spin and update the bezier > widget accordingly. In which case, I do not understand what it is I am > doing wrong in my programming. However, I wrote a minimal test where > the behaviour is not seen. Any guidance is appreciated. > > Thanks! > > > > _______________________________________________ > PyQt mailing list PyQt@riverbankcomputing.com > http://www.riverbankcomputing.com/mailman/listinfo/pyqt Seems an integer division question.
Change: self.dblSpin.setValue(scaledTime/100) to: self.dblSpin.setValue(scaledTime/100.0) and that's works -- Vincent V.V. Oqapy <https://launchpad.net/oqapy> . Qarte <https://launchpad.net/qarte> . PaQager <https://launchpad.net/paqager> _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt