X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ef7a25a73ef4215454d6d8e3bad63bdf5b4339a0..dd107c50be43e8d4dbdba20df162faf119a3781c:/src/gtk1/slider.cpp

diff --git a/src/gtk1/slider.cpp b/src/gtk1/slider.cpp
index 58aa39db81..00a061af9e 100644
--- a/src/gtk1/slider.cpp
+++ b/src/gtk1/slider.cpp
@@ -61,7 +61,8 @@ static void gtk_slider_callback( GtkAdjustment *adjust, wxSlider *win )
     else if (range->scroll_type == GTK_SCROLL_PAGE_BACKWARD) command = wxEVT_SCROLL_PAGEUP;
     else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD)  command = wxEVT_SCROLL_PAGEDOWN;
 
-    int value = (int)ceil(adjust->value);
+    double dvalue = adjust->value;
+    int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5);
 
     int orient = wxHORIZONTAL;
     if ( (win->GetWindowStyleFlag() & wxSB_VERTICAL) == wxSB_VERTICAL)
@@ -160,7 +161,7 @@ int wxSlider::GetValue() const
     // we want to round to the nearest integer, i.e. 0.9 is rounded to 1 and
     // -0.9 is rounded to -1
     double val = m_adjust->value;
-    return (int)(val >= 0 ? val - 0.5 : val + 0.5);
+    return (int)(val < 0 ? val - 0.5 : val + 0.5);
 }
 
 void wxSlider::SetValue( int value )