107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
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#include "puLocal.h"
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void puSlider::draw ( int dx, int dy )
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{
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if ( !visible ) return ;
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abox . draw ( dx, dy,
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style==PUSTYLE_BEVELLED ? -PUSTYLE_BOXED : -style,
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colour, FALSE ) ;
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int sd, od ;
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if ( isVertical() ) { sd = 1 ; od = 0 ; } else { sd = 0 ; od = 1 ; }
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int sz = abox.max [sd] - abox.min [sd] ;
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float val ;
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getValue ( & val ) ;
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if ( val < 0.0f ) val = 0.0f ;
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if ( val > 1.0f ) val = 1.0f ;
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val *= (float) sz * (1.0f - slider_fraction) ;
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puBox bx ;
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bx . min [ sd ] = abox . min [ sd ] + (int) val ;
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bx . max [ sd ] = (int) ( (float) bx . min [ sd ] + (float) sz * slider_fraction ) ;
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bx . min [ od ] = abox . min [ od ] + 2 ;
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bx . max [ od ] = abox . max [ od ] - 2 ;
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bx . draw ( dx, dy, PUSTYLE_SMALL_BEVELLED, colour, FALSE ) ;
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/* If greyed out then halve the opacity when drawing the label and legend */
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if ( active )
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glColor4fv ( colour [ PUCOL_LEGEND ] ) ;
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else
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glColor4f ( colour [ PUCOL_LEGEND ][0],
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colour [ PUCOL_LEGEND ][1],
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colour [ PUCOL_LEGEND ][2],
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colour [ PUCOL_LEGEND ][3] / 2.0 ) ; /* 50% more transparent */
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int xx = ( abox.max[0] - abox.min[0] - puGetStringWidth(legendFont,legend) ) / 2 ;
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int yy = ( abox.max[1] - abox.min[1] - puGetStringHeight(legendFont) ) / 2 ;
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puDrawString ( legendFont, legend,
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dx + abox.min[0] + xx,
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dy + abox.min[1] + yy ) ;
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draw_label ( dx, dy ) ;
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}
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void puSlider::doHit ( int button, int updown, int x, int y )
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{
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if ( button == PU_LEFT_BUTTON )
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{
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int sd = isVertical() ;
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int sz = abox.max [sd] - abox.min [sd] ;
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int coord = isVertical() ? y : x ;
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float next_value ;
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if ( sz == 0 )
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next_value = 0.5f ;
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else
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{
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next_value = ( (float)coord - (float)abox.min[sd] - (float)sz * slider_fraction / 2.0f ) /
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( (float) sz * (1.0f - slider_fraction) ) ;
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}
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next_value = (next_value < 0.0f) ? 0.0f : (next_value > 1.0) ? 1.0f : next_value ;
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setValue ( next_value ) ;
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switch ( cb_mode )
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{
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case PUSLIDER_CLICK :
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if ( updown == active_mouse_edge )
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{
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last_cb_value = next_value ;
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invokeCallback () ;
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}
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break ;
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case PUSLIDER_DELTA :
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if ( fabs ( last_cb_value - next_value ) >= cb_delta )
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{
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last_cb_value = next_value ;
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invokeCallback () ;
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}
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break ;
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case PUSLIDER_ALWAYS :
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default :
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last_cb_value = next_value ;
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invokeCallback () ;
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break ;
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}
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}
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}
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