Refactor filling from Part to Alignment

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

diff --git a/source/vslider.cpp b/source/vslider.cpp
new file mode 100644 (file)
index 0000000..397713b
--- /dev/null
+++ b/source/vslider.cpp
@@ -0,0 +1,86 @@
+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#include <msp/gl/matrix.h>
+#include <msp/gl/transform.h>
+#include "graphic.h"
+#include "part.h"
+#include "style.h"
+#include "vslider.h"
+
+namespace Msp {
+namespace GLtk {
+
+VSlider::VSlider(const Resources &r):
+       Slider(r),
+       dragging(false)
+{
+       update_style();
+}
+
+void VSlider::button_press(int x, int y, unsigned btn)
+{
+       if(geom.is_inside(x, y))
+       {
+               int sh=get_slider_height();
+               int sy=geom.y+static_cast<int>((geom.h-sh)*(value-min)/(max-min));
+               if(btn==1 && y>=sy && y<sy+sh)
+               {
+                       dragging=true;
+                       state=ACTIVE;
+                       drag_start_y=y;
+                       drag_start_value=value;
+               }
+       }
+}
+
+void VSlider::button_release(int, int, unsigned btn)
+{
+       if(btn==1)
+       {
+               dragging=false;
+               state=NORMAL;
+       }
+}
+
+void VSlider::pointer_motion(int, int y)
+{
+       if(dragging)
+       {
+               set_value(drag_start_value+(y-drag_start_y)*(max-min)/(geom.h-get_slider_height()));
+       }
+}
+
+void VSlider::render_special(const Part &part) const
+{
+       if(part.get_name()=="slider")
+       {
+               Alignment align=part.get_alignment();
+               align.y=(value-min)/(max-min);
+
+               Geometry pgeom=part.get_geometry();
+               align.apply(pgeom, geom, part.get_margin());
+
+               GL::push_matrix();
+               GL::translate(pgeom.x, pgeom.y, 0);
+               part.get_graphic(state)->render(pgeom.w, pgeom.h);
+               GL::pop_matrix();
+       }
+}
+
+unsigned VSlider::get_slider_height() const
+{
+       for(PartSeq::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
+               if(i->get_name()=="slider")
+                       return i->get_geometry().h;
+
+       return 0;
+}
+
+} // namespace GLtk
+} // namespace Msp
+