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     cur_bp_threshold(0),
  14     basepair_spinner(0),
  15     window_size_label(0),
  16     percent_label(0)
  17 {
  18   setupWidgets();
  19   basepair_spinner->setWhatsThis("How many base pairs need to be conserved in the window size");
  20
  21   setRange(min, max);
  22
  23   connect(basepair_spinner, SIGNAL(valueChanged(int)),
  24           this, SLOT(setBasepairThreshold(int)));
  25
  26   basepair_spinner->setValue(min);
  27   updatePercentThreshold();
  28
  29   layout->addWidget(new QLabel("Threshold"));
  30   layout->addWidget(basepair_spinner);
  31   layout->addWidget(window_size_label);
  32   layout->addWidget(percent_label);
  33   setLayout(layout);
  34 }
  35
  36 void ThresholdWidget::setupWidgets()
  37 {
  38   layout = new QHBoxLayout(this);
  39   basepair_spinner = new QSpinBox(this);
  40   window_size_label = new QLabel(this);
  41   percent_label = new QLabel(this);
  42 }
  43
  44 void ThresholdWidget::setRange(int min, int max)
  45 {
  46   basepair_spinner->setRange(min, max);
  47   if (cur_bp_threshold < min || cur_bp_threshold > max)
  48   {
  49     cur_bp_threshold = min;
  50     basepair_spinner->setValue(min);
  51   }
  52
  53   QString num;
  54   num.setNum(max);
  55   window_size_label->setText("/"+num);
  56   updatePercentThreshold();
  57 }
  58
  59 bool ThresholdWidget::isReadOnly() const
  60 {
  61   return basepair_spinner->isReadOnly();
  62 }
  63
  64 void ThresholdWidget::setReadOnly(bool read_only)
  65 {
  66   basepair_spinner->setReadOnly(read_only);
  67 }
  68
  69 double ThresholdWidget::min_ratio() const
  70 {
  71   double ratio=((double)basepair_spinner->minimum()/
  72                 (double)basepair_spinner->maximum());
  73
  74   return ratio;
  75 }
  76
  77 double ThresholdWidget::ratio() const
  78 {
  79   return ((float)threshold())/((float)basepair_spinner->maximum());
  80 }
  81
  82 void ThresholdWidget::setBasepairThreshold(int threshold)
  83 {
  84  if (cur_bp_threshold!= threshold)
  85   {
  86     cur_bp_threshold = threshold;
  87     cur_percent_threshold = (int)(roundl(ratio() * 100));
  88     basepair_spinner->setValue(threshold);
  89     updatePercentThreshold();
  90     emit thresholdChanged(threshold);
  91   }
  92 }
  93
  94 void ThresholdWidget::updatePercentThreshold()
  95 {
  96   int min_percent = (int)fmaxl(0.0, roundl(ratio()*100));
  97   QString label;
  98   label.setNum(min_percent);
  99   label += "%";
 100   percent_label->setText(label);
 101 }
 102
 103 int ThresholdWidget::threshold() const
 104 {
 105   return cur_bp_threshold;
 106 }
 107
 108 void ThresholdWidget::reset(int min, int max, int threshold)
 109 {
 110
 111   cur_bp_threshold = threshold;
 112   cur_percent_threshold = (int)(roundl(ratio() * 100));
 113   setRange(min, max);
 114   basepair_spinner->setValue(threshold);
 115   updatePercentThreshold();
 116
 117 }