Improve widget part caching

[libs/gltk.git] / source / slider.cpp

diff --git a/source/slider.cpp b/source/slider.cpp
index dc8a28a6ff0c0ca718000cb3923c5e03c1050633..7123458c0e41b7268ce44b7c556543dfd2af9aa1 100644 (file)
--- a/source/slider.cpp
+++ b/source/slider.cpp
@@ -27,7 +27,10 @@ void Slider::set_value(double v)
        }
 
        if(value!=old_value)
+       {
                signal_value_changed.emit(value);
+               rebuild();
+       }
 }
 
 void Slider::set_range(double a, double b)
@@ -54,10 +57,7 @@ void Slider::start_drag(int p)
 void Slider::drag(int p)
 {
        if(max>min)
-       {
                set_value(drag_start_value+(p-drag_start_pos)*(max-min)/drag_area_size);
-               rebuild();
-       }
 }
 
 void Slider::end_drag()
@@ -68,17 +68,12 @@ void Slider::end_drag()
 
 
 Slider::Loader::Loader(Slider &s):
-       Widget::Loader(s)
+       DataFile::DerivedObjectLoader<Slider, Widget::Loader>(s)
 {
        add("range", &Slider::min, &Slider::max);
        add("step",  &Slider::step);
        add("value", &Slider::value);
 }
 
-Slider &Slider::Loader::get_object() const
-{
-       return static_cast<Slider &>(obj);
-}
-
 } // namespace GLtk
 } // namespace Msp