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Merge pull request #3448 from Ashod:highgui_trackbar_improvements

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This commit is contained in:
Vadim Pisarevsky
2014-12-15 18:03:01 +00:00
parent fed1b3fd59 006384edaf
commit d54b069ae1
7 changed files with 150 additions and 22 deletions
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37
modules/highgui/src/window_gtk.cpp
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@@ -1585,6 +1585,43 @@ CV_IMPL void cvSetTrackbarPos( const char* trackbar_name, const char* window_nam
}
CV_IMPL void cvSetTrackbarMax(const char* trackbar_name, const char* window_name, int maxval)
{
CV_FUNCNAME("cvSetTrackbarMax");
__BEGIN__;
if (maxval >= 0)
{
CvWindow* window = 0;
CvTrackbar* trackbar = 0;
if (trackbar_name == 0 || window_name == 0)
{
CV_ERROR( CV_StsNullPtr, "NULL trackbar or window name");
}
window = icvFindWindowByName( window_name );
if (window)
{
trackbar = icvFindTrackbarByName(window, trackbar_name);
if (trackbar)
{
trackbar->maxval = maxval;
CV_LOCK_MUTEX();
gtk_range_set_range(GTK_RANGE(trackbar->widget), 0, trackbar->maxval);
CV_UNLOCK_MUTEX();
}
}
}
__END__;
}
CV_IMPL void* cvGetWindowHandle( const char* window_name )
{
void* widget = 0;