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#include "iwa_timecodefx.h"
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#include "tparamuiconcept.h"
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#include <qfont></qfont>
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#include <qfontmetrics></qfontmetrics>
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#include <qimage></qimage>
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#include <qpainter></qpainter>
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//------------------------------------------------------------------
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Iwa_TimeCodeFx::Iwa_TimeCodeFx()
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    : m_displayType(new TIntEnumParam(TYPE_HHMMSSFF, "HH;MM;SS;FF"))
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    , m_frameRate(24)
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    , m_startFrame(0)
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    , m_position(TPointD(0.0, 0.0))
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    , m_size(25)
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    , m_textColor(TPixel32::White)
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    , m_showBox(true)
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    , m_boxColor(TPixel32::Black) {
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  m_displayType->addItem(TYPE_FRAME, "Frame Number");
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  m_position->getX()->setMeasureName("fxLength");
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  m_position->getY()->setMeasureName("fxLength");
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  m_size->setMeasureName("fxLength");
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  m_size->setValueRange(0.1, (std::numeric_limits<double>::max)());</double>
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  bindParam(this, "displayType", m_displayType);
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  bindParam(this, "frameRate", m_frameRate);
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  bindParam(this, "startFrame", m_startFrame);
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  bindParam(this, "position", m_position);
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  bindParam(this, "size", m_size);
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  bindParam(this, "textColor", m_textColor);
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  bindParam(this, "showBox", m_showBox);
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  bindParam(this, "boxColor", m_boxColor);
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}
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//------------------------------------------------------------------
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bool Iwa_TimeCodeFx::doGetBBox(double frame, TRectD &bBox,
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                               const TRenderSettings &ri) {
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  bBox = TConsts::infiniteRectD;
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  return true;
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}
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//------------------------------------------------------------------
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void Iwa_TimeCodeFx::doCompute(TTile &tile, double frame,
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                               const TRenderSettings &ri) {
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  double fac   = sqrt(fabs(ri.m_affine.det()));
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  int size     = (int)(fac * fabs(m_size->getValue(frame)));
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  TPoint point = convert(
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      fac * m_position->getValue(frame) -
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      (tile.m_pos + tile.getRaster()->getCenterD()) +
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      TPointD(ri.m_cameraBox.getLx() / 2.0, ri.m_cameraBox.getLy() / 2.0));
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#ifdef _WIN32
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  QFont font("Arial", size);
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#else
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  QFont font("Helvetica", size);
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#endif
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  font.setWeight(QFont::Normal);
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  QFontMetrics fm(font);
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  QString timeCodeStr = getTimeCodeStr(frame, ri);
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  int width           = fm.width(timeCodeStr);
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  int height          = fm.height();
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  QImage img(width, height, QImage::Format_ARGB32);
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  if (m_showBox->getValue()) {
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    TPixel32 boxColor = m_boxColor->getValue(frame);
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    img.fill(QColor((int)boxColor.r, (int)boxColor.g, (int)boxColor.b,
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                    (int)boxColor.m));
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  } else
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    img.fill(Qt::transparent);
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  QPainter painter(&img);
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  TPixel32 color = m_textColor->getValue(frame);
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  painter.setPen(
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      QColor((int)color.r, (int)color.g, (int)color.b, (int)color.m));
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  painter.setFont(font);
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  painter.drawText(QPoint(0, fm.ascent()), timeCodeStr);
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  tile.getRaster()->clear();
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  TRaster32P ras32 = (TRaster32P)tile.getRaster();
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  TRaster64P ras64 = (TRaster64P)tile.getRaster();
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  if (ras32)
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    putTimeCodeImage<traster32p, tpixel32="">(ras32, point, img);</traster32p,>
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  else if (ras64)
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    putTimeCodeImage<traster64p, tpixel64="">(ras64, point, img);</traster64p,>
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  else
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    throw TException("Iwa_TimeCodeFx: unsupported Pixel Type");
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}
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//------------------------------------------------------------------
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void Iwa_TimeCodeFx::getParamUIs(TParamUIConcept *&concepts, int &length) {
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  concepts = new TParamUIConcept[length = 1];
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  concepts[0].m_type  = TParamUIConcept::POINT;
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  concepts[0].m_label = "Position";
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  concepts[0].m_params.push_back(m_position);
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}
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//------------------------------------------------------------------
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std::string Iwa_TimeCodeFx::getAlias(double frame,
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                                     const TRenderSettings &info) const {
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  std::string alias = getFxType();
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  alias += "[";
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  std::string paramalias("");
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  for (int i = 0; i < getParams()->getParamCount(); ++i) {
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    TParam *param = getParams()->getParam(i);
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    paramalias += param->getName() + "=" + param->getValueAlias(frame, 3);
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  }
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  return alias + std::to_string(frame) + "," + std::to_string(getIdentifier()) +
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         paramalias + "]";
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}
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//------------------------------------------------------------------
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QString Iwa_TimeCodeFx::getTimeCodeStr(double frame,
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                                       const TRenderSettings &ri) {
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  int f = (int)frame + m_startFrame->getValue();
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  if (m_displayType->getValue() == TYPE_HHMMSSFF) {
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    bool neg = (f < 0);
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    f        = abs(f);
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    int fps  = m_frameRate->getValue();
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    int hh   = f / (fps * 60 * 60);
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    f -= hh * fps * 60 * 60;
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    int mm = f / (fps * 60);
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    f -= mm * fps * 60;
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    int ss = f / fps;
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    int ff = f % fps;
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    return QString((neg) ? "-" : "") +
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           QString::number(hh).rightJustified(2, '0') + QString(";") +
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           QString::number(mm).rightJustified(2, '0') + QString(";") +
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           QString::number(ss).rightJustified(2, '0') + QString(";") +
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           QString::number(ff).rightJustified(2, '0');
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  } else {   // TYPE_FRAMENUMBER
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    f += 1;  // starting from "000001" with no frame offset.
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    return QString((f < 0) ? "-" : "") +
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           QString::number(abs(f)).rightJustified(6, '0');
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  }
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}
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//------------------------------------------------------------------
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template <typename pixel="" raster,="" typename=""></typename>
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void Iwa_TimeCodeFx::putTimeCodeImage(const RASTER srcRas, TPoint &pos,
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                                      QImage &img) {
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  for (int j = 0; j < img.height(); j++) {
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    int rasY = pos.y + j;
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    if (rasY < 0) continue;
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    if (srcRas->getLy() <= rasY) break;
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    PIXEL *pix  = srcRas->pixels(rasY);
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    QRgb *img_p = (QRgb *)img.scanLine(img.height() - j - 1);
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    for (int i = 0; i < img.width(); i++, img_p++) {
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      int rasX = pos.x + i;
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      if (rasX < 0) continue;
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      if (srcRas->getLx() <= rasX) break;
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      pix[rasX].r = (typename PIXEL::Channel)(
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          qRed(*img_p) * (int)PIXEL::maxChannelValue / (int)UCHAR_MAX);
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      pix[rasX].g = (typename PIXEL::Channel)(
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          qGreen(*img_p) * (int)PIXEL::maxChannelValue / (int)UCHAR_MAX);
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      pix[rasX].b = (typename PIXEL::Channel)(
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          qBlue(*img_p) * (int)PIXEL::maxChannelValue / (int)UCHAR_MAX);
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      pix[rasX].m = (typename PIXEL::Channel)(
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          qAlpha(*img_p) * (int)PIXEL::maxChannelValue / (int)UCHAR_MAX);
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    }
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  }
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}
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//==============================================================================
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FX_PLUGIN_IDENTIFIER(Iwa_TimeCodeFx, "iwa_TimeCodeFx");