Cppcheck report in vcl/unx/gtk/gdi/salnativewidgets-gtk.cxx

[Ivan Timofeev]

On 20.10.2012 22:23, julien2412 wrote:
> Hello,
> 
> Just noticed this with cppcheck:
> [gdi/salnativewidgets-gtk.cxx:3452] -> [gdi/salnativewidgets-gtk.cxx:3462]:
> (performance) Variable 'eState' is reassigned a value before the old one has
> been used.
> Here are the lines:
>    3452     GtkStateType eState = (nState & CTRL_STATE_ENABLED) ?
> GTK_STATE_ACTIVE : GTK_STATE_INSENSITIVE;
>    3453     gint slider_width = 10;
>    3454     gint slider_length = 10;
>    3455     gint trough_border = 0;
>    3456     gtk_widget_style_get( pWidget,
>    3457                           "slider-width", &slider_width,
>    3458                           "slider-length", &slider_length,
>    3459                           "trough-border", &trough_border,
>    3460                           NULL);
>    3461 
>    3462     eState = (nState & CTRL_STATE_ENABLED) ? GTK_STATE_NORMAL :
> GTK_STATE_INSENSITIVE;
>    3463     if( nPart == PART_TRACK_HORZ_AREA )
>    3464     {
>    3465         gtk_paint_box( pWidget->style,
>    3466                        pixDrawable,
>    3467                        eState,
>    3468                        GTK_SHADOW_IN,
>    3469                        NULL,
>    3470                        pWidget,
>    3471                        "trough",
>    3472                        0, (h-slider_width-2*trough_border)/2, w,
> slider_width + 2*trough_border);
> 
> Is the line 3452 could just be removed or should this part be a little
> reworked?

Hi Julien,

I think the line 3452 can be removed. GTK_STATE_ACTIVE is for "pressed"
controls, i.e. CTRL_STATE_PRESSED, and the Slider control does not even
use this CTRL_STATE_PRESSED flag.
http://opengrok.libreoffice.org/xref/core/vcl/source/control/slider.cxx

Best regards,
Ivan