qui/ThresholdWidget.cpp

   1 #include <QSlider>
   2 #include <QString>
   3
   4 #include "qui/ThresholdWidget.hpp"
   5 #include <iostream>
   6 #include <math.h>
   7
   8 // This is completely and totally derived from the Qt example
   9 // LCDRange.cpp
  10 ThresholdWidget::ThresholdWidget(QWidget *parent, int min, int max)
  11   : QWidget(parent),
  12     layout(0),
  13     basepair_spinner(0),
  14     window_size_label(0),
  15     percent_label(0)
  16 {
  17   setupWidgets();
  18   basepair_spinner->setWhatsThis("How many base pairs need to be conserved in the window size");
  19
  20   setRange(min, max);
  21
  22   connect(basepair_spinner, SIGNAL(valueChanged(int)),
  23           this, SLOT(setBasepairThreshold(int)));
  24
  25   basepair_spinner->setValue(min);
  26   updatePercentThreshold();
  27
  28   layout->addWidget(new QLabel("Threshold"));
  29   layout->addWidget(basepair_spinner);
  30   layout->addWidget(window_size_label);
  31   layout->addWidget(percent_label);
  32   setLayout(layout);
  33 }
  34
  35 void ThresholdWidget::setupWidgets()
  36 {
  37   layout = new QHBoxLayout(this);
  38   basepair_spinner = new QSpinBox(this);
  39   window_size_label = new QLabel(this);
  40   percent_label = new QLabel(this);
  41 }
  42
  43 void ThresholdWidget::setRange(int min, int max)
  44 {
  45   basepair_spinner->setRange(min, max);
  46   cur_bp_threshold = min;
  47   basepair_spinner->setValue(min);
  48
  49   QString num;
  50   num.setNum(max);
  51   window_size_label->setText("/"+num);
  52   updatePercentThreshold();
  53 }
  54
  55 bool ThresholdWidget::isReadOnly() const
  56 {
  57   return basepair_spinner->isReadOnly();
  58 }
  59
  60 void ThresholdWidget::setReadOnly(bool read_only)
  61 {
  62   basepair_spinner->setReadOnly(read_only);
  63 }
  64
  65 double ThresholdWidget::min_ratio() const
  66 {
  67   double ratio=((double)basepair_spinner->minimum()/
  68                 (double)basepair_spinner->maximum());
  69
  70   return ratio;
  71 }
  72
  73 double ThresholdWidget::ratio() const
  74 {
  75   return ((float)threshold())/((float)basepair_spinner->maximum());
  76 }
  77
  78 void ThresholdWidget::setBasepairThreshold(int threshold)
  79 {
  80  if (cur_bp_threshold!= threshold)
  81   {
  82     cur_bp_threshold = threshold;
  83     cur_percent_threshold = (int)(roundl(ratio() * 100));
  84     basepair_spinner->setValue(threshold);
  85     updatePercentThreshold();
  86     emit thresholdChanged(threshold);
  87   }
  88 }
  89
  90 void ThresholdWidget::updatePercentThreshold()
  91 {
  92   int min_percent = (int)fmaxl(0.0, roundl(ratio()*100));
  93   QString label;
  94   label.setNum(min_percent);
  95   label += "%";
  96   percent_label->setText(label);
  97 }
  98
  99 int ThresholdWidget::threshold() const
 100 {
 101   return cur_bp_threshold;
 102 }