Shamusworld >> Repos - wozmaker/blob - src/tmpwindow.cpp

   1 //
   2 // tmpwindow.cpp: Disk structure window
   3 //
   4 // Part of the WOZ Maker project
   5 // by James Hammons
   6 // (C) 2018 Underground Software
   7 //
   8
   9 #include "tmpwindow.h"
  10 #include "fileio.h"
  11 #include "global.h"
  12
  13
  14 TmpWindow::TmpWindow(QWidget * parent/*= 0*/): QWidget(parent, Qt::Window)
  15 {
  16         setGeometry(QRect(0, 0, 1024, 1024));
  17         setMinimumWidth(1024);
  18         setMinimumHeight(1024);
  19         setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
  20 }
  21
  22
  23 TmpWindow::~TmpWindow(void)
  24 {
  25 }
  26
  27
  28 void TmpWindow::paintEvent(QPaintEvent * /*event*/)
  29 {
  30         QPainter painter(this);
  31         painter.setRenderHint(QPainter::Antialiasing);
  32
  33         QPen dkGreyPen(QColor(0x3A, 0x3B, 0x3A, 0xFF), 1.0, Qt::SolidLine);
  34         QBrush dkGreyBrush(QColor(0x3A, 0x3B, 0x3A, 0xFF));
  35
  36         // Draw empty disk
  37         painter.setPen(dkGreyPen);
  38         painter.setBrush(dkGreyBrush);
  39         painter.drawEllipse(0, 0, 1024, 1024);
  40         painter.setPen(Qt::white);
  41         painter.setBrush(Qt::white);
  42         painter.drawEllipse(388, 388, 248, 248);
  43
  44         // Draw disk track data
  45         uint8_t lastLocation = 0xFF;
  46         uint32_t x = 4, y = 4, w = 1024 - (2 * 4);
  47
  48         for(uint32_t str=0; str<Global::numStreams; str++)
  49         {
  50                 if (Global::stream[str]->location != lastLocation)
  51                 {
  52                         uint32_t splicePoint = Uint32LE(Global::stream[str]->estLoopPoint);
  53                         float angleTime = (float)splicePoint / (5760.0f / 2.0f);
  54                         uint32_t pos = 0;
  55                         float strTime = 0;
  56                         float curTime = angleTime;
  57
  58                         for(uint32_t i=0; i<5760; i+=2)
  59                         {
  60                                 float ones = 0;
  61
  62                                 while (strTime < curTime)
  63                                 {
  64                                         while (Global::stream[str]->data[pos] == 0xFF)
  65                                                 strTime += Global::stream[str]->data[pos++];
  66
  67                                         strTime += Global::stream[str]->data[pos++];
  68                                         ones += 1.0f;
  69                                 }
  70
  71                                 uint32_t color = ((ones * 32.0f) / angleTime) * 255.0f;
  72
  73                                 if (color > 255)
  74                                         color = 255;
  75
  76                                 painter.setPen(QPen(QColor(color, color, color, 0xFF), 1.0, Qt::SolidLine));
  77                                 painter.drawArc(x, y, w, w, -i, 2);
  78                                 painter.drawArc(x+1, y+1, w-2, w-2, -i, 2);
  79
  80                                 curTime += angleTime;
  81                         }
  82
  83                         x += 2;
  84                         y += 2;
  85                         w -= 4;
  86                         lastLocation = Global::stream[str]->location;
  87                 }
  88         }
  89 }
  90