X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fhslider.cpp;h=32d0f6521b98f3ddae610557d71625d30aaed43e;hb=48fd4db84c4d0b43305d85f74de99eb4fef04fd6;hp=d764797971029c08da73015f391e6ab6a9867795;hpb=ed9873ba7ee862ad76937f579fe371c1a27d5715;p=libs%2Fgltk.git

diff --git a/source/hslider.cpp b/source/hslider.cpp
index d764797..32d0f65 100644
--- a/source/hslider.cpp
+++ b/source/hslider.cpp
@@ -16,8 +16,7 @@ namespace Msp {
 namespace GLtk {
 
 HSlider::HSlider(const Resources &r):
-	Slider(r),
-	dragging(false)
+	Slider(r)
 {
 	update_style();
 }
@@ -26,14 +25,11 @@ void HSlider::button_press(int x, int y, unsigned btn)
 {
 	if(geom.is_inside(x, y))
 	{
-		int sw=get_slider_width();
-		int sx=geom.x+static_cast<int>((geom.w-sw)*(value-min)/(max-min));
-		if(btn==1 && x>=sx && x<sx+sw)
+		int sx=geom.x+static_cast<int>((geom.w-slider_size)*(value-min)/(max-min));
+		if(btn==1 && x>=sx && x<static_cast<int>(sx+slider_size))
 		{
-			dragging=true;
 			state=ACTIVE;
-			drag_start_x=x;
-			drag_start_value=value;
+			start_drag(x);
 		}
 	}
 }
@@ -42,7 +38,7 @@ void HSlider::button_release(int, int, unsigned btn)
 {
 	if(btn==1)
 	{
-		dragging=false;
+		end_drag();
 		state=NORMAL;
 	}
 }
@@ -50,33 +46,39 @@ void HSlider::button_release(int, int, unsigned btn)
 void HSlider::pointer_motion(int x, int)
 {
 	if(dragging)
-	{
-		set_value(drag_start_value+(x-drag_start_x)*(max-min)/(geom.w-get_slider_width()));
-	}
+		drag(x);
 }
 
 void HSlider::render_special(const Part &part) const
 {
 	if(part.get_name()=="slider")
 	{
-		const Geometry &pgeom=part.get_geometry();
-		unsigned gw=pgeom.w;
-		unsigned gh=(part.get_fill_y() ? geom.h : pgeom.h);
+		Alignment align=part.get_alignment();
+		if(max>min)
+			align.x=(value-min)/(max-min);
+
+		Geometry pgeom=part.get_geometry();
+		align.apply(pgeom, geom, part.get_margin());
+
 		GL::push_matrix();
-		GL::translate((geom.w-gw)*(value-min)/(max-min), (geom.h-gh)*(part.get_alignment().y+1)/2, 0);
-		const Graphic *graphic=part.get_graphic(state);
-		graphic->render(gw, gh);
+		GL::translate(pgeom.x, pgeom.y, 0);
+		part.get_graphic(state)->render(pgeom.w, pgeom.h);
 		GL::pop_matrix();
 	}
 }
 
-unsigned HSlider::get_slider_width() const
+void HSlider::on_geometry_change()
+{
+	drag_area_size=geom.w-slider_size;
+}
+
+void HSlider::on_style_change()
 {
 	for(PartSeq::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
 		if(i->get_name()=="slider")
-			return i->get_geometry().w;
+			slider_size=i->get_geometry().w;
 
-	return 0;
+	on_geometry_change();
 }
 
 } // namespace GLtk