QtCollider/style/slider_style.cpp

   1 #include "style.hpp"
   2 #include "routines.hpp"
   3 #include "../widgets/QcSlider.h"
   4
   5 #include <QPainter>
   6
   7 namespace QtCollider {
   8 namespace Style {
   9
  10 QRect Slider::sc_groove ( const QStyleOption *opt, const QcSlider * )
  11 {
  12     return sunkenContentsRect(opt->rect);
  13 }
  14
  15 QRect Slider::sc_handle ( const QStyleOptionSlider *opt, const QcSlider *s )
  16 {
  17   QRect contRect( sunkenContentsRect(opt->rect) );
  18
  19   double valRange = opt->maximum - opt->minimum;
  20   double val = valRange > 0.0 ? (opt->sliderPosition - opt->minimum) / valRange : 0.0;
  21
  22   int len = s->handleLength();
  23
  24   QRect r;
  25   if( opt->orientation == Qt::Horizontal ) {
  26     int pos = val * (contRect.width() - len);
  27     r.setX( pos + contRect.left() );
  28     r.setY( contRect.top() );
  29     r.setSize( QSize( len, contRect.height() ) );
  30   }
  31   else {
  32     int pos = val * (contRect.height() - len);
  33     r.setX( contRect.left() );
  34     r.setY( contRect.bottom() - pos - len + 1 );
  35     r.setSize( QSize( contRect.width(), len ) );
  36   }
  37   return r;
  38 }
  39
  40 void Slider::cc_draw ( const QStyleOptionSlider *opt, QPainter *p, const QcSlider *slider )
  41 {
  42   using QtCollider::Style::Ellipse;
  43   using QtCollider::Style::RoundRect;
  44
  45   const QPalette &plt = opt->palette;
  46
  47   p->save();
  48   p->setRenderHint( QPainter::Antialiasing, true );
  49
  50   QRect rGroove = opt->rect;
  51
  52   // draw groove
  53   RoundRect shGroove( rGroove, 2 );
  54
  55   QColor baseColor( slider->grooveColor() );
  56   QColor focusColor;
  57   if( opt->state & QStyle::State_HasFocus )
  58     focusColor = slider->focusColor();
  59
  60   drawSunken( p, plt, shGroove, baseColor, focusColor );
  61
  62   // geometry
  63   QRect rHandle( sc_handle( opt, slider ) );
  64
  65   // draw handle
  66   RoundRect shHandle( rHandle, 2 );
  67   drawRaised( p, plt, shHandle, plt.color(QPalette::Button).lighter(105) );
  68
  69   p->restore();
  70
  71     // draw marker
  72   QPen pen(plt.color(QPalette::ButtonText));
  73   pen.setWidth(2);
  74   p->setPen(pen);
  75   if(opt->orientation == Qt::Horizontal) {
  76     qreal center = rHandle.center().x() + 1;
  77     QLine line( center, rHandle.top() + 3, center, rHandle.bottom() - 2 );
  78     p->drawLine(line);
  79     pen.setColor(plt.color(QPalette::Light));
  80   } else {
  81     qreal center = rHandle.center().y() + 1;
  82     QLine line( rHandle.left() + 3, center, rHandle.right() - 2, center );
  83     p->drawLine(line);
  84     pen.setColor(plt.color(QPalette::Light));
  85   }
  86 }
  87
  88 } // namespace Style
  89 } // namespace QtCollider