qt/leleja/myreportdialog.cpp

   1 #include <iostream>
   2 #include "myreportdialog.h"
   3
   4 #include <QPainter>
   5 #include <QPixmap>
   6 #include <QString>
   7 #include <QTextStream>
   8
   9 MyReportDialog::MyReportDialog(QWidget *parent)
  10   : QDialog(parent)
  11 {
  12   std::cout << "MyReportDialog::MyReportDialog()\n";
  13 }
  14
  15 MyReportDialog::~MyReportDialog()
  16 {
  17   std::cout << "MyReportDialog::~MyReportDialog()\n";
  18 }
  19
  20 void MyReportDialog::paintEvent(QPaintEvent *event)
  21 {
  22   std::cout << "MyReportDialog::paintEvent()\n";
  23
  24   QPainter painter(this);
  25   painter.drawPixmap(0, 0, m_pixmap);
  26 }
  27
  28 void MyReportDialog::resizeEvent(QResizeEvent *event)
  29 {
  30   std::cout << "MyReportDialog::resizeEvent()\n";
  31
  32   drawPixmap();
  33 }
  34
  35 void MyReportDialog::drawMyPie(QPainter *painter)
  36 {
  37   std::cout << "MyReportDialog::drawMyPie()\n";
  38
  39   // Days remaining
  40   painter->setBrush(QBrush(Qt::red, Qt::SolidPattern));
  41   painter->drawPie(0, 0,
  42                    this->size().width(),
  43                    this->size().height(),
  44                    0,
  45                    ((float) m_daysLeft / m_totalDays) * 16 * 360);
  46
  47   // Days off
  48   painter->setBrush(QBrush(Qt::blue, Qt::SolidPattern));
  49   painter->drawPie(0, 0,
  50                    this->size().width(),
  51                    this->size().height(),
  52                    ((float) m_daysLeft / m_totalDays) * 16 * 360,
  53                    ((float) m_daysOff / m_totalDays) * 16 * 360);
  54
  55   // Days that have been served
  56   painter->setBrush(QBrush(Qt::green, Qt::SolidPattern));
  57   painter->drawPie(0, 0,
  58                    this->size().width(),
  59                    this->size().height(),
  60                    ((float) (m_daysLeft + m_daysOff) / m_totalDays) * 16 * 360,
  61                    ((float) (m_totalDays - m_daysLeft - m_daysOff) / m_totalDays) * 16 * 360);
  62 }
  63
  64 void MyReportDialog::drawMyLegend(QPainter *painter)
  65 {
  66   float percentDaysServed;
  67   float percentDaysLeft;
  68   float percentDaysOff;
  69
  70   std::cout << "MyReportDialog::drawMyLabel\n";
  71
  72   percentDaysServed = (float) (m_totalDays - m_daysLeft) / m_totalDays;
  73   percentDaysLeft = (float) m_daysLeft / m_totalDays;
  74   percentDaysOff = (float) m_daysOff / m_totalDays;
  75
  76   QString result;
  77   QTextStream out(&result);
  78   out.setRealNumberPrecision(2);
  79   out << "Days served = " << percentDaysServed << "%\n";
  80   out << "Days left = " << percentDaysLeft << "%\n";
  81   out << "Days off = " << percentDaysOff << "%\n";
  82
  83   painter->setPen(QPen(Qt::white));
  84   painter->drawText(contentsRect(), Qt::AlignCenter, result);
  85 }
  86
  87 void MyReportDialog::drawPixmap(void)
  88 {
  89   // Create a pixmap
  90   m_pixmap = QPixmap(size());
  91   m_pixmap.fill(this, 0, 0);
  92
  93   // Create a QPainter to draw on the pixmap
  94   QPainter painter(&m_pixmap);
  95
  96   // Set the painter's pen and backround to be the same as the parent window
  97   painter.initFrom(this);
  98
  99   // Enable antialiasing mode
 100   painter.setRenderHint(QPainter::Antialiasing, true);
 101
 102   // Draw pie
 103   drawMyPie(&painter);
 104
 105   // Draw label
 106   drawMyLegend(&painter);
 107
 108   // This function won't invoke an immediate repaint,
 109   // instead it will schedule a paint event that will be processed,
 110   // whenever Qt returns to the main event loop.
 111   update();
 112 }
 113
 114 void MyReportDialog::setDaysLeft(unsigned int daysLeft)
 115 {
 116   m_daysLeft = daysLeft;
 117 }
 118
 119 void MyReportDialog::setDaysOff(unsigned int daysOff)
 120 {
 121   m_daysOff = daysOff;
 122 }
 123
 124 void MyReportDialog::setDaysTotal(unsigned int totalDays)
 125 {
 126   m_totalDays = totalDays;
 127 }