simgear/PUI/puButton.cxx
1998-06-12 01:04:52 +00:00

51 lines
1.3 KiB
C++

#include "puLocal.h"
void puButton::draw ( int dx, int dy )
{
if ( !visible ) return ;
/* If button is pushed or highlighted - use inverse style for button itself */
abox . draw ( dx, dy, ( getValue() ^ highlighted ) ? -style : style, colour,
isReturnDefault() ) ;
/* If greyed out then halve the opacity when drawing the label and legend */
if ( active )
glColor4fv ( colour [ PUCOL_LEGEND ] ) ;
else
glColor4f ( colour [ PUCOL_LEGEND ][0],
colour [ PUCOL_LEGEND ][1],
colour [ PUCOL_LEGEND ][2],
colour [ PUCOL_LEGEND ][3] / 2.0 ) ; /* 50% more transparent */
int xx = ( abox.max[0] - abox.min[0] - puGetStringWidth(legendFont,legend) ) / 2 ;
int yy = ( abox.max[1] - abox.min[1] - puGetStringHeight(legendFont) ) / 2 ;
puDrawString ( legendFont, legend,
dx + abox.min[0] + xx,
dy + abox.min[1] + yy ) ;
draw_label ( dx, dy ) ;
}
void puButton::doHit ( int button, int updown, int, int )
{
if ( button == PU_LEFT_BUTTON )
{
if ( updown == active_mouse_edge || active_mouse_edge == PU_UP_AND_DOWN )
{
lowlight () ;
setValue ( (int) ! getValue () ) ;
invokeCallback () ;
}
else
highlight () ;
}
else
lowlight () ;
}