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#include "tiio_sprite.h"
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#include "../toonz/tapp.h"
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#include "tsystem.h"
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#include "tsound.h"
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#include <qprocess></qprocess>
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#include <qdir></qdir>
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#include <qtgui qimage=""></qtgui>
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#include <qstringlist></qstringlist>
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#include <qpainter></qpainter>
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#include <qtextstream></qtextstream>
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#include "toonz/preferences.h"
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#include "toonz/toonzfolders.h"
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#include "trasterimage.h"
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#include "timageinfo.h"
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//===========================================================
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//
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//  TImageWriterSprite
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//
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//===========================================================
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class TImageWriterSprite : public TImageWriter {
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public:
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  int m_frameIndex;
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  TImageWriterSprite(const TFilePath &path, int frameIndex,
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                     TLevelWriterSprite *lwg)
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      : TImageWriter(path), m_frameIndex(frameIndex), m_lwg(lwg) {
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    m_lwg->addRef();
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  }
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  ~TImageWriterSprite() { m_lwg->release(); }
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  bool is64bitOutputSupported() override { return false; }
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  void save(const TImageP &img) override { m_lwg->save(img, m_frameIndex); }
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private:
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  TLevelWriterSprite *m_lwg;
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};
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//===========================================================
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//
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//  TLevelWriterSprite;
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//
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//===========================================================
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TLevelWriterSprite::TLevelWriterSprite(const TFilePath &path,
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                                       TPropertyGroup *winfo)
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    : TLevelWriter(path, winfo) {
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  if (!m_properties) m_properties = new Tiio::SpriteWriterProperties();
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  std::string scale = m_properties->getProperty("Scale")->getValueAsString();
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  m_scale           = QString::fromStdString(scale).toInt();
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  std::string topPadding =
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      m_properties->getProperty("Top Padding")->getValueAsString();
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  m_topPadding = QString::fromStdString(topPadding).toInt();
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  std::string bottomPadding =
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      m_properties->getProperty("Bottom Padding")->getValueAsString();
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  m_bottomPadding = QString::fromStdString(bottomPadding).toInt();
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  std::string leftPadding =
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      m_properties->getProperty("Left Padding")->getValueAsString();
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  m_leftPadding = QString::fromStdString(leftPadding).toInt();
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  std::string rightPadding =
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      m_properties->getProperty("Right Padding")->getValueAsString();
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  m_rightPadding = QString::fromStdString(rightPadding).toInt();
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  m_format       = QString::fromStdWString(
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      ((TEnumProperty *)(m_properties->getProperty("Format")))->getValue());
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  TBoolProperty *trim =
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      (TBoolProperty *)m_properties->getProperty("Trim Empty Space");
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  m_trim = trim->getValue();
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  if (TSystem::doesExistFileOrLevel(m_path)) TSystem::deleteFile(m_path);
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}
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//-----------------------------------------------------------
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TLevelWriterSprite::~TLevelWriterSprite() {
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  int finalWidth    = m_right - m_left + 1;
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  int finalHeight   = m_bottom - m_top + 1;
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  int resizedWidth  = finalWidth * m_scale / 100;
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  int resizedHeight = finalHeight * m_scale / 100;
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  for (QImage *image : m_images) {
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    QImage copy = image->copy(m_left, m_top, finalWidth, finalHeight);
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    if (m_scale != 100) {
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      int width  = (copy.width() * m_scale) / 100;
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      int height = (copy.height() * m_scale) / 100;
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      copy       = copy.scaled(width, height);
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    }
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    m_imagesResized.push_back(copy);
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  }
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  for (QImage *image : m_images) {
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    delete image;
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  }
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  m_images.clear();
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  int horizDim          = 1;
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  int vertDim           = 1;
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  int vertPadding       = m_topPadding + m_bottomPadding;
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  int horizPadding      = m_leftPadding + m_rightPadding;
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  int totalVertPadding  = 0;
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  int totalHorizPadding = 0;
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  int spriteSheetWidth;
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  int spriteSheetHeight;
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  if (m_format == "Grid") {
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    // Calculate Grid Size
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    while (horizDim * horizDim < m_imagesResized.size()) horizDim++;
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    totalHorizPadding = horizDim * horizPadding;
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    spriteSheetWidth  = horizDim * resizedWidth + totalHorizPadding;
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    vertDim           = horizDim;
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    // Figure out if there is one row too many
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    // (Such as 6 images needs 3 x 2 grid)
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    if (vertDim * vertDim - vertDim >= m_imagesResized.size()) {
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      vertDim = vertDim - 1;
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    }
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    totalVertPadding  = vertDim * vertPadding;
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    spriteSheetHeight = vertDim * resizedHeight + totalVertPadding;
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  } else if (m_format == "Vertical") {
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    spriteSheetWidth  = resizedWidth + horizPadding;
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    spriteSheetHeight = m_imagesResized.size() * (resizedHeight + vertPadding);
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    vertDim           = m_imagesResized.size();
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  } else if (m_format == "Horizontal") {
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    spriteSheetWidth  = m_imagesResized.size() * (resizedWidth + horizPadding);
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    spriteSheetHeight = resizedHeight + vertPadding;
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    horizDim          = m_imagesResized.size();
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  } else if (m_format == "Individual") {
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    for (int i = 0; i < m_imagesResized.size(); i++) {
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      QString path      = m_path.getQString();
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      QString newEnding = "_" + QString::number(i) + ".png";
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      path              = path.replace(".spritesheet", newEnding);
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      m_imagesResized[i].save(path, "PNG", -1);
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    }
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  }
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  if (m_format != "Individual") {
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    QImage spriteSheet = QImage(spriteSheetWidth, spriteSheetHeight,
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                                QImage::Format_ARGB32_Premultiplied);
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    spriteSheet.fill(qRgba(0, 0, 0, 0));
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    QPainter painter;
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    painter.begin(&spriteSheet);
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    int row    = 0;
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    int column = 0;
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    int rowPadding;
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    int columnPadding;
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    int currentImage = 0;
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    while (row < vertDim) {
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      while (column < horizDim) {
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        rowPadding    = m_topPadding;
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        columnPadding = m_leftPadding;
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        rowPadding += row * vertPadding;
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        columnPadding += column * horizPadding;
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        painter.drawImage(column * resizedWidth + columnPadding,
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                          row * resizedHeight + rowPadding,
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                          m_imagesResized[currentImage]);
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        currentImage++;
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        column++;
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        if (currentImage >= m_imagesResized.size()) break;
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      }
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      column = 0;
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      row++;
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      if (currentImage >= m_imagesResized.size()) break;
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    }
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    painter.end();
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    QString path = m_path.getQString();
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    path         = path.replace(".spritesheet", ".png");
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    spriteSheet.save(path, "PNG", -1);
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    path = path.replace(".png", ".txt");
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    QFile file(path);
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    file.open(QIODevice::WriteOnly | QIODevice::Text);
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    QTextStream out(&file);
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    out << "Total Images: " << m_imagesResized.size() << "\n";
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    out << "Individual Image Width: " << resizedWidth << "\n";
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    out << "Individual Image Height: " << resizedHeight << "\n";
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    out << "Individual Image Width with Padding: "
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        << resizedWidth + horizPadding << "\n";
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    out << "Individual Image Height with Padding: "
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        << resizedHeight + vertPadding << "\n";
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    out << "Images Across: " << horizDim << "\n";
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    out << "Images Down : " << vertDim << "\n";
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    out << "Top Padding: " << m_topPadding << "\n";
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    out << "Bottom Padding: " << m_bottomPadding << "\n";
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    out << "Left Padding: " << m_leftPadding << "\n";
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    out << "Right Padding: " << m_rightPadding << "\n";
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    out << "Horizontal Space Between Images: " << horizPadding << "\n";
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    out << "Vertical Space Between Images: " << vertPadding << "\n";
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    file.close();
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  }
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  m_imagesResized.clear();
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}
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//-----------------------------------------------------------
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TImageWriterP TLevelWriterSprite::getFrameWriter(TFrameId fid) {
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  if (!fid.getLetter().isEmpty()) return TImageWriterP(0);
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  int index               = fid.getNumber();
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  TImageWriterSprite *iwg = new TImageWriterSprite(m_path, index, this);
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  return TImageWriterP(iwg);
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}
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//-----------------------------------------------------------
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void TLevelWriterSprite::setFrameRate(double fps) {}
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void TLevelWriterSprite::saveSoundTrack(TSoundTrack *st) {}
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//-----------------------------------------------------------
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void TLevelWriterSprite::save(const TImageP &img, int frameIndex) {
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  m_frameIndexOrder.push_back(frameIndex);
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  std::sort(m_frameIndexOrder.begin(), m_frameIndexOrder.end());
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  TRasterImageP tempImage(img);
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  TRasterImage *image = (TRasterImage *)tempImage->cloneImage();
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  m_lx           = image->getRaster()->getLx();
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  m_ly           = image->getRaster()->getLy();
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  int m_bpp      = image->getRaster()->getPixelSize();
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  int totalBytes = m_lx * m_ly * m_bpp;
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  image->getRaster()->yMirror();
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  // lock raster to get data
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  image->getRaster()->lock();
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  void *buffin = image->getRaster()->getRawData();
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  assert(buffin);
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  void *buffer = malloc(totalBytes);
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  memcpy(buffer, buffin, totalBytes);
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  image->getRaster()->unlock();
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  // create QImage save format
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  QString m_intermediateFormat = "png";
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  QByteArray ba                = m_intermediateFormat.toUpper().toLatin1();
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  const char *format           = ba.data();
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  QImage *qi = new QImage((uint8_t *)buffer, m_lx, m_ly,
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                          QImage::Format_ARGB32_Premultiplied);
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  int l = qi->width(), r = 0, t = qi->height(), b = 0;
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  if (m_trim) {
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    for (int y = 0; y < qi->height(); ++y) {
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      QRgb *row      = (QRgb *)qi->scanLine(y);
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      bool rowFilled = false;
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      for (int x = 0; x < qi->width(); ++x) {
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        if (qAlpha(row[x])) {
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          rowFilled = true;
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          r         = std::max(r, x);
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          if (l > x) {
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            l = x;
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            x = r;
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          }
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        }
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      }
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      if (rowFilled) {
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        t = std::min(t, y);
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        b = y;
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      }
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    }
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  } else {
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    l = 0;
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    r = qi->width() - 1;
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    t = 0;
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    b = qi->height() - 1;
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  }
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  if (m_firstPass) {
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    m_firstPass = false;
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    m_left      = l;
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    m_right     = r;
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    m_top       = t;
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    m_bottom    = b;
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  } else {
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    if (l < m_left) m_left = l;
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    if (r > m_right) m_right = r;
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    if (t < m_top) m_top = t;
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    if (b > m_bottom) m_bottom = b;
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  }
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  QImage *newQi = new QImage(m_lx, m_ly, QImage::Format_ARGB32_Premultiplied);
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  newQi->fill(qRgba(0, 0, 0, 0));
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  QPainter painter(newQi);
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  painter.drawImage(QPoint(0, 0), *qi);
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  // Make sure to order the images according to their frame index
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  // Not just what comes out first
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  std::vector<int>::iterator it;</int>
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  it = find(m_frameIndexOrder.begin(), m_frameIndexOrder.end(), frameIndex);
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  int pos = std::distance(m_frameIndexOrder.begin(), it);
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  m_images.insert(m_images.begin() + pos, newQi);
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  delete image;
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  delete qi;
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  free(buffer);
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}
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Tiio::SpriteWriterProperties::SpriteWriterProperties()
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    : m_topPadding("Top Padding", 0, 100, 0)
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    , m_bottomPadding("Bottom Padding", 0, 100, 0)
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    , m_leftPadding("Left Padding", 0, 100, 0)
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    , m_rightPadding("Right Padding", 0, 100, 0)
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    , m_scale("Scale", 1, 100, 100)
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    , m_format("Format")
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    , m_trim("Trim Empty Space", true) {
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  m_format.addValue(L"Grid");
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  m_format.addValue(L"Vertical");
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  m_format.addValue(L"Horizontal");
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  m_format.addValue(L"Individual");
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  m_format.setValue(L"Grid");
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  bind(m_format);
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  bind(m_topPadding);
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  bind(m_bottomPadding);
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  bind(m_leftPadding);
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  bind(m_rightPadding);
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  bind(m_scale);
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  bind(m_trim);
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}
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void Tiio::SpriteWriterProperties::updateTranslation() {
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  m_topPadding.setQStringName(tr("Top Padding"));
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  m_bottomPadding.setQStringName(tr("Bottom Padding"));
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  m_leftPadding.setQStringName(tr("Left Padding"));
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  m_rightPadding.setQStringName(tr("Right Padding"));
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  m_scale.setQStringName(tr("Scale"));
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  m_format.setQStringName(tr("Format"));
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  m_format.setItemUIName(L"Grid", tr("Grid"));
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  m_format.setItemUIName(L"Vertical", tr("Vertical"));
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  m_format.setItemUIName(L"Horizontal", tr("Horizontal"));
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  m_format.setItemUIName(L"Individual", tr("Individual"));
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  m_trim.setQStringName(tr("Trim Empty Space"));
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}
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// Tiio::Reader* Tiio::makeSpriteReader(){ return nullptr; }
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// Tiio::Writer* Tiio::makeSpriteWriter(){ return nullptr; }