Fill & Stroke dialog randomly stops updating colors live

[ScislaC]

This was tested with current SVN (04/12/2007)

1) Open inkscape and draw a shape
2) In the fill & stroke, go into HSL, w/ full saturation w/ 50% lightness,
and drag the Hue slider back and forth a whole bunch...
3) It does live updating of the color for a while and then seems to
randomly stop doing a live update. Note that it will update on mouse
release though.

JonCruz confirmed this behavior as well.

-Josh

[Bug Importer (bug-importer)]

I do not know the workings (i.e. signals etc.) of inkscape, but the
problem manifest itself in src/dialogs/fill-style.cpp:

The function
  sp_fill_style_widget_paint_dragged(...)
does a
  g_object_set_data (G_OBJECT (spw), "local", GINT_TO_POINTER (TRUE));
This is used to skip unneccessary drawing.

This "local" flag is only cleared in
  sp_fill_style_widget_update(...)
with
  g_object_set_data (G_OBJECT (spw), "local", GINT_TO_POINTER (FALSE));

At first, dragging the slider slowly everything is fine. Increasing the
slider dragging speed seems to trigger the bug and
sp_fill_style_widget_update() does not get called anymore until the mouse
button is released. The use of "local" seems to work for a while,
preventing unneccessary updates, but when sp_fill_style_widget_update()
ceases somehow to get called, "local" is not reset and no update to the
color is made.

Removing the effect of "local" (i.e, removing the return) in
sp_fill_style_widget_paint_dragged() is not the solution (the widget shows
a lag when dragged then), but the color of the object is updated all the
time.

I think that the real problem is happening somewhere before this when the
signals are generated.

[choff (saperlipopette)]

In the following attachment (poster.svg - never mind the missing images) there are two boxes with rounded corners. If I open the color dialoge (shift-ctrl-f) and try to change the color of the stroke paint, nothing happens however hard I fumble around. If I draw a new box, it works as expected - colors update and show the colors in the dialogue.
I think this is a rather severe bug. Thought maybe you can use this attachment for troubleshooting?

[Pablo Trabajos (pajarico)]

I can confirm that the bug reported by Josh is still present in 17586. In sliders it happens exactly as he described it. Both on the color wheel and sliders.

[Jon A. Cruz (jon-joncruz)]

Fixed in revision #9258.