+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2007-2008, 2010-2011 Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
#include <msp/gl/matrix.h>
#include <msp/gl/transform.h>
#include "graphic.h"
namespace Msp {
namespace GLtk {
-HSlider::HSlider(const Resources &r):
- Slider(r),
- dragging(false)
+HSlider::HSlider():
+ slider_size(1)
+{ }
+
+void HSlider::autosize()
{
- update_style();
+ if(!style)
+ return;
+
+ Widget::autosize();
+
+ if(const Part *slider_part = style->get_part("slider"))
+ {
+ const Sides &margin = slider_part->get_margin();
+ const Geometry &pgeom = slider_part->get_geometry();
+ geom.w = std::max(geom.w, pgeom.w*3/2+margin.left+margin.right);
+ geom.h = std::max(geom.h, pgeom.h+margin.top+margin.bottom);
+ }
}
-void HSlider::button_press(int x, int y, unsigned btn)
+void HSlider::render_special(const Part &part) const
{
- if(geom.is_inside(x, y))
+ if(part.get_name()=="slider")
{
- 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)
- {
- dragging=true;
- state=ACTIVE;
- drag_start_x=x;
- drag_start_value=value;
- }
+ 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(pgeom.x, pgeom.y, 0);
+ part.get_graphic(state)->render(pgeom.w, pgeom.h);
+ GL::pop_matrix();
}
}
-void HSlider::button_release(int, int, unsigned btn)
+void HSlider::button_press(int x, int y, unsigned btn)
{
- if(btn==1)
+ if(btn==1 && geom.is_inside_relative(x, y) && max>min)
{
- dragging=false;
- state=NORMAL;
+ int sx = static_cast<int>((geom.w-slider_size)*(value-min)/(max-min));
+ if(x<sx)
+ set_value(value-step*10);
+ else if(x>=static_cast<int>(sx+slider_size))
+ set_value(value+step*10);
+ else
+ start_drag(x);
}
}
+void HSlider::button_release(int, int, unsigned btn)
+{
+ if(btn==1 && dragging)
+ end_drag();
+}
+
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_part(const Part &part) const
+void HSlider::on_geometry_change()
{
- if(part.get_name()=="slider")
- {
- unsigned gw=part.get_width();
- unsigned gh=(part.get_fill_y() ? geom.h : part.get_height());
- 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::pop_matrix();
- }
- else
- Widget::render_part(part);
+ drag_area_size = geom.w-slider_size;
}
-unsigned HSlider::get_slider_width() const
+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_width();
+ if(!style)
+ return;
+
+ if(const Part *slider_part = style->get_part("slider"))
+ slider_size = slider_part->get_geometry().w;
- return 0;
+ on_geometry_change();
}
} // namespace GLtk