[freetype2-demos] master 996dbf2 08/41: [ftinspect] WIP: Rewrite `MainGUI`.

[Werner Lemberg]

branch: master
commit 996dbf27a641e4ec2fe4b450470a20d50f258ab1
Author: Charlie Jiang <w@chariri.moe>
Commit: Werner Lemberg <wl@gnu.org>

    [ftinspect] WIP: Rewrite `MainGUI`.
    
    Note: This commit doesn't compile. This change is splitted into 2 commits
    to avoid a complicated diff.
    
    * src/ftinspect/maingui.cpp, src/ftinspect/maingui.hpp: Old version removed.
---
 src/ftinspect/maingui.cpp | 1235 ---------------------------------------------
 src/ftinspect/maingui.hpp |  251 ---------
 2 files changed, 1486 deletions(-)

diff --git a/src/ftinspect/maingui.cpp b/src/ftinspect/maingui.cpp
deleted file mode 100644
index c5c2f27..0000000
--- a/src/ftinspect/maingui.cpp
+++ /dev/null
@@ -1,1235 +0,0 @@
-// maingui.cpp
-
-// Copyright (C) 2016-2022 by Werner Lemberg.
-
-
-#include "maingui.hpp"
-#include "glyphcomponents/grid.hpp"
-#include "uihelper.hpp"
-
-#include <QApplication>
-#include <QFileDialog>
-#include <QMessageBox>
-#include <QSettings>
-
-#include <freetype/ftdriver.h>
-
-
-MainGUI::MainGUI(Engine* engine)
-: engine_(engine)
-{
-  setGraphicsDefaults();
-  createLayout();
-  createConnections();
-  createActions();
-  createMenus();
-  createStatusBar();
-
-  readSettings();
-
-  setUnifiedTitleAndToolBarOnMac(true);
-}
-
-
-MainGUI::~MainGUI()
-{
-  // empty
-}
-
-
-// overloading
-
-void
-MainGUI::closeEvent(QCloseEvent* event)
-{
-  writeSettings();
-  event->accept();
-}
-
-
-void
-MainGUI::about()
-{
-  QMessageBox::about(
-    this,
-    tr("About ftinspect"),
-    tr("<p>This is <b>ftinspect</b> version %1<br>"
-       " Copyright %2 2016-2022<br>"
-       " by Werner Lemberg <tt>&lt;wl@gnu.org&gt;</tt></p>"
-       ""
-       "<p><b>ftinspect</b> shows how a font gets rendered"
-       " by FreeType, allowing control over virtually"
-       " all rendering parameters.</p>"
-       ""
-       "<p>License:"
-       " <a 
href='https://gitlab.freedesktop.org/freetype/freetype/-/blob/master/docs/FTL.TXT'>FreeType"
-       " License (FTL)</a> or"
-       " <a 
href='https://gitlab.freedesktop.org/freetype/freetype/-/blob/master/docs/GPLv2.TXT'>GNU"
-       " GPLv2</a></p>")
-       .arg(QApplication::applicationVersion())
-       .arg(QChar(0xA9)));
-}
-
-
-void
-MainGUI::aboutQt()
-{
-  QApplication::aboutQt();
-}
-
-
-void
-MainGUI::loadFonts()
-{
-  int oldSize = engine_->numberOfOpenedFonts();
-
-  QStringList files = QFileDialog::getOpenFileNames(
-                        this,
-                        tr("Load one or more fonts"),
-                        QDir::homePath(),
-                        "",
-                        NULL,
-                        QFileDialog::ReadOnly);
-
-  engine_->openFonts(files);
-
-  // if we have new fonts, set the current index to the first new one
-  if (oldSize < engine_->numberOfOpenedFonts())
-    currentFontIndex_ = oldSize;
-
-  showFont();
-}
-
-
-void
-MainGUI::closeFont()
-{
-  if (currentFontIndex_ < engine_->numberOfOpenedFonts())
-  {
-    engine_->removeFont(currentFontIndex_);
-  }
-
-  // show next font after deletion, i.e., retain index if possible
-  int num = engine_->numberOfOpenedFonts();
-  if (num)
-  {
-    if (currentFontIndex_ >= num)
-      currentFontIndex_ = num - 1;
-  }
-  else
-    currentFontIndex_ = 0;
-
-  showFont();
-}
-
-
-void
-MainGUI::watchCurrentFont()
-{
-  showFont();
-}
-
-
-void
-MainGUI::showFont()
-{
-  // we do lazy computation of FT_Face objects
-
-  if (currentFontIndex_ < engine_->numberOfOpenedFonts())
-  {
-    QFileInfo& fileInfo = engine_->fontFileManager()[currentFontIndex_];
-    QString fontName = fileInfo.fileName();
-
-    engine_->fontFileManager().updateWatching(currentFontIndex_);
-    if (fileInfo.isSymLink())
-    {
-      fontName.prepend("<i>");
-      fontName.append("</i>");
-    }
-
-    if (!fileInfo.exists())
-    {
-      // On Unix-like systems, the symlink's target gets opened; this
-      // implies that deletion of a symlink doesn't make `engine->loadFont'
-      // fail since it operates on a file handle pointing to the target.
-      // For this reason, we remove the font to enforce a reload.
-      // However, we're just removing it from the Engine cache,
-      // not deleting the entry in the font file manager
-      engine_->removeFont(currentFontIndex_, false);
-    }
-
-    fontFilenameLabel_->setText(fontName);
-  }
-  else
-    fontFilenameLabel_->clear();
-
-  applySettings();
-  currentNumberOfFaces_
-    = engine_->numberOfFaces(currentFontIndex_);
-  currentNumberOfNamedInstances_
-    = engine_->numberOfNamedInstances(currentFontIndex_,
-                                     currentFaceIndex_);
-  currentNumberOfGlyphs_
-    = engine_->loadFont(currentFontIndex_,
-                       currentFaceIndex_,
-                       currentNamedInstanceIndex_);
-
-  if (currentNumberOfGlyphs_ < 0)
-  {
-    // there might be various reasons why the current
-    // (file, face, instance) triplet is invalid or missing;
-    // we thus start our timer to periodically test
-    // whether the font starts working
-    if (currentFontIndex_ > 0
-        && currentFontIndex_ < engine_->numberOfOpenedFonts())
-      engine_->fontFileManager().timerStart();
-  }
-
-  fontNameLabel_->setText(QString("%1 %2")
-                         .arg(engine_->currentFamilyName())
-                         .arg(engine_->currentStyleName()));
-
-  checkCurrentFontIndex();
-  checkCurrentFaceIndex();
-  checkCurrentNamedInstanceIndex();
-  checkHinting();
-  adjustGlyphIndex(0);
-
-  drawGlyph();
-}
-
-
-void
-MainGUI::applySettings()
-{
-  // Spinbox value cannot become negative
-  engine_->setDPI(static_cast<unsigned int>(dpiSpinBox_->value()));
-
-  if (unitsComboBox_->currentIndex() == Units_px)
-    engine_->setSizeByPixel(sizeDoubleSpinBox_->value());
-  else
-    engine_->setSizeByPoint(sizeDoubleSpinBox_->value());
-
-  engine_->setHinting(hintingCheckBox_->isChecked());
-  engine_->setAutoHinting(autoHintingCheckBox_->isChecked());
-  engine_->setHorizontalHinting(horizontalHintingCheckBox_->isChecked());
-  engine_->setVerticalHinting(verticalHintingCheckBox_->isChecked());
-  engine_->setBlueZoneHinting(blueZoneHintingCheckBox_->isChecked());
-  engine_->setShowSegments(segmentDrawingCheckBox_->isChecked());
-
-  engine_->setGamma(gammaSlider_->value());
-
-  engine_->setAntiAliasingTarget(
-    antiAliasingComboBoxModel_
-      ->indexToValue(antiAliasingComboBox_->currentIndex())
-      .loadFlag);
-}
-
-
-void
-MainGUI::clearStatusBar()
-{
-  statusBar()->clearMessage();
-  statusBar()->setStyleSheet("");
-}
-
-
-void
-MainGUI::checkHinting()
-{
-  if (hintingCheckBox_->isChecked())
-  {
-    if (engine_->currentFontType() == Engine::FontType_CFF)
-    {
-      hintingModeComboBoxModel_->setCurrentEngineType(
-        HintingModeComboBoxModel::HintingEngineType_CFF, false); // XXX tricky
-      hintingModeComboBox_->setCurrentIndex(currentCFFHintingMode_);
-    }
-    else if (engine_->currentFontType() == Engine::FontType_TrueType)
-    {
-      hintingModeComboBoxModel_->setCurrentEngineType( // XXX tricky
-        HintingModeComboBoxModel::HintingEngineType_TrueType, false);
-      hintingModeComboBox_->setCurrentIndex(currentTTInterpreterVersion_);
-    }
-    else
-    {
-      hintingModeLabel_->setEnabled(false);
-      hintingModeComboBox_->setEnabled(false);
-    }
-
-    autoHintingCheckBox_->setEnabled(true);
-    checkAutoHinting();
-  }
-  else
-  {
-    hintingModeLabel_->setEnabled(false);
-    hintingModeComboBox_->setEnabled(false);
-
-    autoHintingCheckBox_->setEnabled(false);
-    horizontalHintingCheckBox_->setEnabled(false);
-    verticalHintingCheckBox_->setEnabled(false);
-    blueZoneHintingCheckBox_->setEnabled(false);
-    segmentDrawingCheckBox_->setEnabled(false);
-
-    antiAliasingComboBoxModel_->setLightAntiAliasingEnabled(false);
-    if (antiAliasingComboBox_->currentIndex()
-      == AntiAliasingComboBoxModel::AntiAliasing_Light)
-      antiAliasingComboBox_->setCurrentIndex(
-        AntiAliasingComboBoxModel::AntiAliasing_Normal);
-  }
-
-  drawGlyph();
-}
-
-
-void
-MainGUI::checkHintingMode()
-{
-  int index = hintingModeComboBox_->currentIndex();
-
-  if (engine_->currentFontType() == Engine::FontType_CFF)
-  {
-    engine_->setCFFHintingMode(
-      hintingModeComboBoxModel_->indexToCFFMode(index));
-    currentCFFHintingMode_ = index;
-  }
-  else if (engine_->currentFontType() == Engine::FontType_TrueType)
-  {
-    engine_->setTTInterpreterVersion(
-      hintingModeComboBoxModel_->indexToTTInterpreterVersion(index));
-    currentTTInterpreterVersion_ = index;
-  }
-
-  // this enforces reloading of the font
-  showFont();
-}
-
-
-void
-MainGUI::checkAutoHinting()
-{
-  if (autoHintingCheckBox_->isChecked())
-  {
-    hintingModeLabel_->setEnabled(false);
-    hintingModeComboBox_->setEnabled(false);
-
-    horizontalHintingCheckBox_->setEnabled(true);
-    verticalHintingCheckBox_->setEnabled(true);
-    blueZoneHintingCheckBox_->setEnabled(true);
-    segmentDrawingCheckBox_->setEnabled(true);
-
-    antiAliasingComboBoxModel_->setLightAntiAliasingEnabled(true);
-  }
-  else
-  {
-    if (engine_->currentFontType() == Engine::FontType_CFF
-        || engine_->currentFontType() == Engine::FontType_TrueType)
-    {
-      hintingModeLabel_->setEnabled(true);
-      hintingModeComboBox_->setEnabled(true);
-    }
-
-    horizontalHintingCheckBox_->setEnabled(false);
-    verticalHintingCheckBox_->setEnabled(false);
-    blueZoneHintingCheckBox_->setEnabled(false);
-    segmentDrawingCheckBox_->setEnabled(false);
-
-    antiAliasingComboBoxModel_->setLightAntiAliasingEnabled(false);
-
-    if (antiAliasingComboBox_->currentIndex()
-        == AntiAliasingComboBoxModel::AntiAliasing_Light)
-      antiAliasingComboBox_->setCurrentIndex(
-          AntiAliasingComboBoxModel::AntiAliasing_Normal);
-  }
-
-  drawGlyph();
-}
-
-
-void
-MainGUI::checkAntiAliasing()
-{
-  int index = antiAliasingComboBox_->currentIndex();
-
-  if (index == AntiAliasingComboBoxModel::AntiAliasing_None
-      || index == AntiAliasingComboBoxModel::AntiAliasing_Normal
-      || index == AntiAliasingComboBoxModel::AntiAliasing_Light)
-  {
-    lcdFilterLabel_->setEnabled(false);
-    lcdFilterComboBox_->setEnabled(false);
-  }
-  else
-  {
-    lcdFilterLabel_->setEnabled(true);
-    lcdFilterComboBox_->setEnabled(true);
-  }
-
-  drawGlyph();
-}
-
-
-void
-MainGUI::checkLcdFilter()
-{
-  int index = lcdFilterComboBox_->currentIndex();
-  engine_->setLcdFilter(static_cast<FT_LcdFilter>(
-    lcdFilterComboboxModel_->indexToValue(index)));
-}
-
-
-void
-MainGUI::checkShowPoints()
-{
-  if (showPointsCheckBox_->isChecked())
-    showPointNumbersCheckBox_->setEnabled(true);
-  else
-    showPointNumbersCheckBox_->setEnabled(false);
-
-  drawGlyph();
-}
-
-
-void
-MainGUI::checkUnits()
-{
-  int index = unitsComboBox_->currentIndex();
-
-  if (index == Units_px)
-  {
-    dpiLabel_->setEnabled(false);
-    dpiSpinBox_->setEnabled(false);
-    sizeDoubleSpinBox_->setSingleStep(1);
-    sizeDoubleSpinBox_->setValue(qRound(sizeDoubleSpinBox_->value()));
-  }
-  else
-  {
-    dpiLabel_->setEnabled(true);
-    dpiSpinBox_->setEnabled(true);
-    sizeDoubleSpinBox_->setSingleStep(0.5);
-  }
-
-  drawGlyph();
-}
-
-
-void
-MainGUI::adjustGlyphIndex(int delta)
-{
-  // only adjust current glyph index if we have a valid font
-  if (currentNumberOfGlyphs_ > 0)
-  {
-    currentGlyphIndex_ += delta;
-    currentGlyphIndex_ = qBound(0,
-                               currentGlyphIndex_,
-                               currentNumberOfGlyphs_ - 1);
-  }
-
-  QString upperHex = QString::number(currentGlyphIndex_, 16).toUpper();
-  glyphIndexLabel_->setText(QString("%1 (0x%2)")
-                                   .arg(currentGlyphIndex_)
-                                   .arg(upperHex));
-  glyphNameLabel_->setText(engine_->glyphName(currentGlyphIndex_));
-
-  drawGlyph();
-}
-
-
-void
-MainGUI::checkCurrentFontIndex()
-{
-  if (engine_->numberOfOpenedFonts() < 2)
-  {
-    previousFontButton_->setEnabled(false);
-    nextFontButton_->setEnabled(false);
-  }
-  else if (currentFontIndex_ == 0)
-  {
-    previousFontButton_->setEnabled(false);
-    nextFontButton_->setEnabled(true);
-  }
-  else if (currentFontIndex_ >= engine_->numberOfOpenedFonts() - 1)
-  {
-    previousFontButton_->setEnabled(true);
-    nextFontButton_->setEnabled(false);
-  }
-  else
-  {
-    previousFontButton_->setEnabled(true);
-    nextFontButton_->setEnabled(true);
-  }
-}
-
-
-void
-MainGUI::checkCurrentFaceIndex()
-{
-  if (currentNumberOfFaces_ < 2)
-  {
-    previousFaceButton_->setEnabled(false);
-    nextFaceButton_->setEnabled(false);
-  }
-  else if (currentFaceIndex_ == 0)
-  {
-    previousFaceButton_->setEnabled(false);
-    nextFaceButton_->setEnabled(true);
-  }
-  else if (currentFaceIndex_ >= currentNumberOfFaces_ - 1)
-  {
-    previousFaceButton_->setEnabled(true);
-    nextFaceButton_->setEnabled(false);
-  }
-  else
-  {
-    previousFaceButton_->setEnabled(true);
-    nextFaceButton_->setEnabled(true);
-  }
-}
-
-
-void
-MainGUI::checkCurrentNamedInstanceIndex()
-{
-  if (currentNumberOfNamedInstances_ < 2)
-  {
-    previousNamedInstanceButton_->setEnabled(false);
-    nextNamedInstanceButton_->setEnabled(false);
-  }
-  else if (currentNamedInstanceIndex_ == 0)
-  {
-    previousNamedInstanceButton_->setEnabled(false);
-    nextNamedInstanceButton_->setEnabled(true);
-  }
-  else if (currentNamedInstanceIndex_ >= currentNumberOfNamedInstances_ - 1)
-  {
-    previousNamedInstanceButton_->setEnabled(true);
-    nextNamedInstanceButton_->setEnabled(false);
-  }
-  else
-  {
-    previousNamedInstanceButton_->setEnabled(true);
-    nextNamedInstanceButton_->setEnabled(true);
-  }
-}
-
-
-void
-MainGUI::previousFont()
-{
-  if (currentFontIndex_ > 0)
-  {
-    currentFontIndex_--;
-    currentFaceIndex_ = 0;
-    currentNamedInstanceIndex_ = 0;
-    showFont();
-  }
-}
-
-
-void
-MainGUI::nextFont()
-{
-  if (currentFontIndex_ < engine_->numberOfOpenedFonts() - 1)
-  {
-    currentFontIndex_++;
-    currentFaceIndex_ = 0;
-    currentNamedInstanceIndex_ = 0;
-    showFont();
-  }
-}
-
-
-void
-MainGUI::previousFace()
-{
-  if (currentFaceIndex_ > 0)
-  {
-    currentFaceIndex_--;
-    currentNamedInstanceIndex_ = 0;
-    showFont();
-  }
-}
-
-
-void
-MainGUI::nextFace()
-{
-  if (currentFaceIndex_ < currentNumberOfFaces_ - 1)
-  {
-    currentFaceIndex_++;
-    currentNamedInstanceIndex_ = 0;
-    showFont();
-  }
-}
-
-
-void
-MainGUI::previousNamedInstance()
-{
-  if (currentNamedInstanceIndex_ > 0)
-  {
-    currentNamedInstanceIndex_--;
-    showFont();
-  }
-}
-
-
-void
-MainGUI::nextNamedInstance()
-{
-  if (currentNamedInstanceIndex_ < currentNumberOfNamedInstances_ - 1)
-  {
-    currentNamedInstanceIndex_++;
-    showFont();
-  }
-}
-
-
-void
-MainGUI::zoom()
-{
-  int scale = static_cast<int>(zoomSpinBox_->value());
-
-  QTransform transform;
-  transform.scale(scale, scale);
-
-  // we want horizontal and vertical 1px lines displayed with full pixels;
-  // we thus have to shift the coordinate system accordingly, using a value
-  // that represents 0.5px (i.e., half the 1px line width) after the scaling
-  qreal shift = 0.5 / scale;
-  transform.translate(shift, shift);
-
-  glyphView_->setTransform(transform);
-}
-
-
-void
-MainGUI::setGraphicsDefaults()
-{
-  // color tables (with suitable opacity values) for converting
-  // FreeType's pixmaps to something Qt understands
-  monoColorTable_.append(QColor(Qt::transparent).rgba());
-  monoColorTable_.append(QColor(Qt::black).rgba());
-
-  for (int i = 0xFF; i >= 0; i--)
-    grayColorTable_.append(qRgba(i, i, i, 0xFF - i));
-
-  // XXX make this user-configurable
-
-  axisPen_.setColor(Qt::black);
-  axisPen_.setWidth(0);
-  blueZonePen_.setColor(QColor(64, 64, 255, 64)); // light blue
-  blueZonePen_.setWidth(0);
-  gridPen_.setColor(Qt::lightGray);
-  gridPen_.setWidth(0);
-  offPen_.setColor(Qt::darkGreen);
-  offPen_.setWidth(3);
-  onPen_.setColor(Qt::red);
-  onPen_.setWidth(3);
-  outlinePen_.setColor(Qt::red);
-  outlinePen_.setWidth(0);
-  segmentPen_.setColor(QColor(64, 255, 128, 64)); // light green
-  segmentPen_.setWidth(0);
-}
-
-
-void
-MainGUI::drawGlyph()
-{
-  // the call to `engine->loadOutline' updates FreeType's load flags
-
-  if (!engine_)
-    return;
-
-  if (currentGlyphBitmapItem_)
-  {
-    glyphScene_->removeItem(currentGlyphBitmapItem_);
-    delete currentGlyphBitmapItem_;
-
-    currentGlyphBitmapItem_ = NULL;
-  }
-
-  if (currentGlyphOutlineItem_)
-  {
-    glyphScene_->removeItem(currentGlyphOutlineItem_);
-    delete currentGlyphOutlineItem_;
-
-    currentGlyphOutlineItem_ = NULL;
-  }
-
-  if (currentGlyphPointsItem_)
-  {
-    glyphScene_->removeItem(currentGlyphPointsItem_);
-    delete currentGlyphPointsItem_;
-
-    currentGlyphPointsItem_ = NULL;
-  }
-
-  if (currentGlyphPointNumbersItem_)
-  {
-    glyphScene_->removeItem(currentGlyphPointNumbersItem_);
-    delete currentGlyphPointNumbersItem_;
-
-    currentGlyphPointNumbersItem_ = NULL;
-  }
-
-  applySettings();
-  FT_Outline* outline = engine_->loadOutline(currentGlyphIndex_);
-  if (outline)
-  {
-    if (showBitmapCheckBox_->isChecked())
-    {
-      // XXX support LCD
-      FT_Pixel_Mode pixelMode = FT_PIXEL_MODE_GRAY;
-      if (antiAliasingComboBox_->currentIndex()
-          == AntiAliasingComboBoxModel::AntiAliasing_None)
-        pixelMode = FT_PIXEL_MODE_MONO;
-
-      currentGlyphBitmapItem_ = new GlyphBitmap(outline,
-                                               engine_->ftLibrary(),
-                                               pixelMode,
-                                               monoColorTable_,
-                                               grayColorTable_);
-      glyphScene_->addItem(currentGlyphBitmapItem_);
-    }
-
-    if (showOutlinesCheckBox_->isChecked())
-    {
-      currentGlyphOutlineItem_ = new GlyphOutline(outlinePen_, outline);
-      glyphScene_->addItem(currentGlyphOutlineItem_);
-    }
-
-    if (showPointsCheckBox_->isChecked())
-    {
-      currentGlyphPointsItem_ = new GlyphPoints(onPen_, offPen_, outline);
-      glyphScene_->addItem(currentGlyphPointsItem_);
-
-      if (showPointNumbersCheckBox_->isChecked())
-      {
-        currentGlyphPointNumbersItem_ = new GlyphPointNumbers(onPen_,
-                                                             offPen_,
-                                                             outline);
-        glyphScene_->addItem(currentGlyphPointNumbersItem_);
-      }
-    }
-  }
-
-  glyphScene_->update();
-}
-
-
-// XXX distances are specified in pixels,
-//     making the layout dependent on the output device resolution
-void
-MainGUI::createLayout()
-{
-  // left side
-  fontFilenameLabel_ = new QLabel;
-
-  hintingCheckBox_ = new QCheckBox(tr("Hinting"));
-
-  hintingModeLabel_ = new QLabel(tr("Hinting Mode"));
-  hintingModeLabel_->setAlignment(Qt::AlignRight);
-
-  hintingModeComboBoxModel_ = new HintingModeComboBoxModel(this);
-  hintingModeComboBox_ = new QComboBox;
-  hintingModeComboBox_->setModel(hintingModeComboBoxModel_);
-  hintingModeLabel_->setBuddy(hintingModeComboBox_);
-
-  autoHintingCheckBox_ = new QCheckBox(tr("Auto-Hinting"));
-  horizontalHintingCheckBox_ = new QCheckBox(tr("Horizontal Hinting"));
-  verticalHintingCheckBox_ = new QCheckBox(tr("Vertical Hinting"));
-  blueZoneHintingCheckBox_ = new QCheckBox(tr("Blue-Zone Hinting"));
-  segmentDrawingCheckBox_ = new QCheckBox(tr("Segment Drawing"));
-
-  antiAliasingLabel_ = new QLabel(tr("Anti-Aliasing"));
-  antiAliasingLabel_->setAlignment(Qt::AlignRight);
-
-  antiAliasingComboBoxModel_ = new AntiAliasingComboBoxModel(this);
-  antiAliasingComboBox_ = new QComboBox;
-  antiAliasingComboBox_->setModel(antiAliasingComboBoxModel_);
-  antiAliasingLabel_->setBuddy(antiAliasingComboBox_);
-
-  lcdFilterLabel_ = new QLabel(tr("LCD Filter"));
-  lcdFilterLabel_->setAlignment(Qt::AlignRight);
-
-  lcdFilterComboboxModel_ = new LCDFilterComboBoxModel(this);
-  lcdFilterComboBox_ = new QComboBox;
-  lcdFilterComboBox_->setModel(lcdFilterComboboxModel_);
-  lcdFilterLabel_->setBuddy(lcdFilterComboBox_);
-
-  int width;
-  // make all labels have the same width
-  width = hintingModeLabel_->minimumSizeHint().width();
-  width = qMax(antiAliasingLabel_->minimumSizeHint().width(), width);
-  width = qMax(lcdFilterLabel_->minimumSizeHint().width(), width);
-  hintingModeLabel_->setMinimumWidth(width);
-  antiAliasingLabel_->setMinimumWidth(width);
-  lcdFilterLabel_->setMinimumWidth(width);
-
-  // ensure that all items in combo boxes fit completely;
-  // also make all combo boxes have the same width
-  width = hintingModeComboBox_->minimumSizeHint().width();
-  width = qMax(antiAliasingComboBox_->minimumSizeHint().width(), width);
-  width = qMax(lcdFilterComboBox_->minimumSizeHint().width(), width);
-  hintingModeComboBox_->setMinimumWidth(width);
-  antiAliasingComboBox_->setMinimumWidth(width);
-  lcdFilterComboBox_->setMinimumWidth(width);
-
-  gammaLabel_ = new QLabel(tr("Gamma"));
-  gammaLabel_->setAlignment(Qt::AlignRight);
-  gammaSlider_ = new QSlider(Qt::Horizontal);
-  gammaSlider_->setRange(0, 30); // in 1/10th
-  gammaSlider_->setTickPosition(QSlider::TicksBelow);
-  gammaSlider_->setTickInterval(5);
-  gammaLabel_->setBuddy(gammaSlider_);
-
-  showBitmapCheckBox_ = new QCheckBox(tr("Show Bitmap"));
-  showPointsCheckBox_ = new QCheckBox(tr("Show Points"));
-  showPointNumbersCheckBox_ = new QCheckBox(tr("Show Point Numbers"));
-  showOutlinesCheckBox_ = new QCheckBox(tr("Show Outlines"));
-
-  infoLeftLayout_ = new QHBoxLayout;
-  infoLeftLayout_->addWidget(fontFilenameLabel_);
-
-  hintingModeLayout_ = new QHBoxLayout;
-  hintingModeLayout_->addWidget(hintingModeLabel_);
-  hintingModeLayout_->addWidget(hintingModeComboBox_);
-
-  horizontalHintingLayout_ = new QHBoxLayout;
-  horizontalHintingLayout_->addSpacing(20); // XXX px
-  horizontalHintingLayout_->addWidget(horizontalHintingCheckBox_);
-
-  verticalHintingLayout_ = new QHBoxLayout;
-  verticalHintingLayout_->addSpacing(20); // XXX px
-  verticalHintingLayout_->addWidget(verticalHintingCheckBox_);
-
-  blueZoneHintingLayout_ = new QHBoxLayout;
-  blueZoneHintingLayout_->addSpacing(20); // XXX px
-  blueZoneHintingLayout_->addWidget(blueZoneHintingCheckBox_);
-
-  segmentDrawingLayout_ = new QHBoxLayout;
-  segmentDrawingLayout_->addSpacing(20); // XXX px
-  segmentDrawingLayout_->addWidget(segmentDrawingCheckBox_);
-
-  antiAliasingLayout_ = new QHBoxLayout;
-  antiAliasingLayout_->addWidget(antiAliasingLabel_);
-  antiAliasingLayout_->addWidget(antiAliasingComboBox_);
-
-  lcdFilterLayout_ = new QHBoxLayout;
-  lcdFilterLayout_->addWidget(lcdFilterLabel_);
-  lcdFilterLayout_->addWidget(lcdFilterComboBox_);
-
-  gammaLayout_ = new QHBoxLayout;
-  gammaLayout_->addWidget(gammaLabel_);
-  gammaLayout_->addWidget(gammaSlider_);
-
-  pointNumbersLayout_ = new QHBoxLayout;
-  pointNumbersLayout_->addSpacing(20); // XXX px
-  pointNumbersLayout_->addWidget(showPointNumbersCheckBox_);
-
-  generalTabLayout_ = new QVBoxLayout;
-  generalTabLayout_->addWidget(hintingCheckBox_);
-  generalTabLayout_->addLayout(hintingModeLayout_);
-  generalTabLayout_->addWidget(autoHintingCheckBox_);
-  generalTabLayout_->addLayout(horizontalHintingLayout_);
-  generalTabLayout_->addLayout(verticalHintingLayout_);
-  generalTabLayout_->addLayout(blueZoneHintingLayout_);
-  generalTabLayout_->addLayout(segmentDrawingLayout_);
-  generalTabLayout_->addSpacing(20); // XXX px
-  generalTabLayout_->addStretch(1);
-  generalTabLayout_->addLayout(antiAliasingLayout_);
-  generalTabLayout_->addLayout(lcdFilterLayout_);
-  generalTabLayout_->addSpacing(20); // XXX px
-  generalTabLayout_->addStretch(1);
-  generalTabLayout_->addLayout(gammaLayout_);
-  generalTabLayout_->addSpacing(20); // XXX px
-  generalTabLayout_->addStretch(1);
-  generalTabLayout_->addWidget(showBitmapCheckBox_);
-  generalTabLayout_->addWidget(showPointsCheckBox_);
-  generalTabLayout_->addLayout(pointNumbersLayout_);
-  generalTabLayout_->addWidget(showOutlinesCheckBox_);
-
-  generalTabWidget_ = new QWidget;
-  generalTabWidget_->setLayout(generalTabLayout_);
-
-  mmgxTabWidget_ = new QWidget;
-
-  tabWidget_ = new QTabWidget;
-  tabWidget_->addTab(generalTabWidget_, tr("General"));
-  tabWidget_->addTab(mmgxTabWidget_, tr("MM/GX"));
-
-  leftLayout_ = new QVBoxLayout;
-  leftLayout_->addLayout(infoLeftLayout_);
-  leftLayout_->addWidget(tabWidget_);
-
-  // we don't want to expand the left side horizontally;
-  // to change the policy we have to use a widget wrapper
-  leftWidget_ = new QWidget;
-  leftWidget_->setLayout(leftLayout_);
-
-  QSizePolicy leftWidgetPolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
-  leftWidgetPolicy.setHorizontalStretch(0);
-  
leftWidgetPolicy.setVerticalPolicy(leftWidget_->sizePolicy().verticalPolicy());
-  
leftWidgetPolicy.setHeightForWidth(leftWidget_->sizePolicy().hasHeightForWidth());
-
-  leftWidget_->setSizePolicy(leftWidgetPolicy);
-
-  // right side
-  glyphIndexLabel_ = new QLabel;
-  glyphNameLabel_ = new QLabel;
-  fontNameLabel_ = new QLabel;
-
-  glyphScene_ = new QGraphicsScene;
-  glyphScene_->addItem(new Grid(gridPen_, axisPen_));
-
-  currentGlyphBitmapItem_ = NULL;
-  currentGlyphOutlineItem_ = NULL;
-  currentGlyphPointsItem_ = NULL;
-  currentGlyphPointNumbersItem_ = NULL;
-
-  glyphView_ = new QGraphicsViewx(this);
-  glyphView_->setRenderHint(QPainter::Antialiasing, true);
-  glyphView_->setDragMode(QGraphicsView::ScrollHandDrag);
-  glyphView_->setOptimizationFlags(QGraphicsView::DontSavePainterState);
-  glyphView_->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
-  glyphView_->setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
-  glyphView_->setScene(glyphScene_);
-
-  sizeLabel_ = new QLabel(tr("Size "));
-  sizeLabel_->setAlignment(Qt::AlignRight);
-  sizeDoubleSpinBox_ = new QDoubleSpinBox;
-  sizeDoubleSpinBox_->setAlignment(Qt::AlignRight);
-  sizeDoubleSpinBox_->setDecimals(1);
-  sizeDoubleSpinBox_->setRange(1, 500);
-  sizeLabel_->setBuddy(sizeDoubleSpinBox_);
-
-  unitsComboBox_ = new QComboBox;
-  unitsComboBox_->insertItem(Units_px, "px");
-  unitsComboBox_->insertItem(Units_pt, "pt");
-
-  dpiLabel_ = new QLabel(tr("DPI "));
-  dpiLabel_->setAlignment(Qt::AlignRight);
-  dpiSpinBox_ = new QSpinBox;
-  dpiSpinBox_->setAlignment(Qt::AlignRight);
-  dpiSpinBox_->setRange(10, 600);
-  dpiLabel_->setBuddy(dpiSpinBox_);
-
-  toStartButtonx_ = new QPushButton("|<");
-  toM1000Buttonx_ = new QPushButton("-1000");
-  toM100Buttonx_ = new QPushButton("-100");
-  toM10Buttonx_ = new QPushButton("-10");
-  toM1Buttonx_ = new QPushButton("-1");
-  toP1Buttonx_ = new QPushButton("+1");
-  toP10Buttonx_ = new QPushButton("+10");
-  toP100Buttonx_ = new QPushButton("+100");
-  toP1000Buttonx_ = new QPushButton("+1000");
-  toEndButtonx_ = new QPushButton(">|");
-
-  setButtonNarrowest(toStartButtonx_);
-  setButtonNarrowest(toM1000Buttonx_);
-  setButtonNarrowest(toM100Buttonx_ );
-  setButtonNarrowest(toM10Buttonx_  );
-  setButtonNarrowest(toM1Buttonx_   );
-  setButtonNarrowest(toP1Buttonx_   );
-  setButtonNarrowest(toP10Buttonx_  );
-  setButtonNarrowest(toP100Buttonx_ );
-  setButtonNarrowest(toP1000Buttonx_);
-  setButtonNarrowest(toEndButtonx_  );
-
-  zoomLabel_ = new QLabel(tr("Zoom Factor"));
-  zoomLabel_->setAlignment(Qt::AlignRight);
-  zoomSpinBox_ = new ZoomSpinBox(this, false);
-  zoomSpinBox_->setAlignment(Qt::AlignRight);
-  zoomSpinBox_->setRange(1, 1000 - 1000 % 64);
-  zoomSpinBox_->setKeyboardTracking(false);
-  zoomLabel_->setBuddy(zoomSpinBox_);
-
-  previousFontButton_ = new QPushButton(tr("Previous Font"));
-  nextFontButton_ = new QPushButton(tr("Next Font"));
-  previousFaceButton_ = new QPushButton(tr("Previous Face"));
-  nextFaceButton_ = new QPushButton(tr("Next Face"));
-  previousNamedInstanceButton_ = new QPushButton(tr("Previous Named 
Instance"));
-  nextNamedInstanceButton_ = new QPushButton(tr("Next Named Instance"));
-
-  infoRightLayout = new QGridLayout;
-  infoRightLayout->addWidget(glyphIndexLabel_, 0, 0);
-  infoRightLayout->addWidget(glyphNameLabel_, 0, 1);
-  infoRightLayout->addWidget(fontNameLabel_, 0, 2);
-
-  navigationLayout_ = new QHBoxLayout;
-  navigationLayout_->setSpacing(0);
-  navigationLayout_->addStretch(1);
-  navigationLayout_->addWidget(toStartButtonx_);
-  navigationLayout_->addWidget(toM1000Buttonx_);
-  navigationLayout_->addWidget(toM100Buttonx_);
-  navigationLayout_->addWidget(toM10Buttonx_);
-  navigationLayout_->addWidget(toM1Buttonx_);
-  navigationLayout_->addWidget(toP1Buttonx_);
-  navigationLayout_->addWidget(toP10Buttonx_);
-  navigationLayout_->addWidget(toP100Buttonx_);
-  navigationLayout_->addWidget(toP1000Buttonx_);
-  navigationLayout_->addWidget(toEndButtonx_);
-  navigationLayout_->addStretch(1);
-
-  sizeLayout_ = new QHBoxLayout;
-  sizeLayout_->addStretch(2);
-  sizeLayout_->addWidget(sizeLabel_);
-  sizeLayout_->addWidget(sizeDoubleSpinBox_);
-  sizeLayout_->addWidget(unitsComboBox_);
-  sizeLayout_->addStretch(1);
-  sizeLayout_->addWidget(dpiLabel_);
-  sizeLayout_->addWidget(dpiSpinBox_);
-  sizeLayout_->addStretch(1);
-  sizeLayout_->addWidget(zoomLabel_);
-  sizeLayout_->addWidget(zoomSpinBox_);
-  sizeLayout_->addStretch(2);
-
-  fontLayout = new QGridLayout;
-  fontLayout->setColumnStretch(0, 2);
-  fontLayout->addWidget(nextFontButton_, 0, 1);
-  fontLayout->addWidget(previousFontButton_, 1, 1);
-  fontLayout->setColumnStretch(2, 1);
-  fontLayout->addWidget(nextFaceButton_, 0, 3);
-  fontLayout->addWidget(previousFaceButton_, 1, 3);
-  fontLayout->setColumnStretch(4, 1);
-  fontLayout->addWidget(nextNamedInstanceButton_, 0, 5);
-  fontLayout->addWidget(previousNamedInstanceButton_, 1, 5);
-  fontLayout->setColumnStretch(6, 2);
-
-  rightLayout_ = new QVBoxLayout;
-  rightLayout_->addLayout(infoRightLayout);
-  rightLayout_->addWidget(glyphView_);
-  rightLayout_->addLayout(navigationLayout_);
-  rightLayout_->addSpacing(10); // XXX px
-  rightLayout_->addLayout(sizeLayout_);
-  rightLayout_->addSpacing(10); // XXX px
-  rightLayout_->addLayout(fontLayout);
-
-  // for symmetry with the left side use a widget also
-  rightWidget_ = new QWidget;
-  rightWidget_->setLayout(rightLayout_);
-
-  // the whole thing
-  ftinspectLayout_ = new QHBoxLayout;
-  ftinspectLayout_->addWidget(leftWidget_);
-  ftinspectLayout_->addWidget(rightWidget_);
-
-  ftinspectWidget_ = new QWidget;
-  ftinspectWidget_->setLayout(ftinspectLayout_);
-  setCentralWidget(ftinspectWidget_);
-  setWindowTitle("ftinspect");
-}
-
-
-void
-MainGUI::createConnections()
-{
-  connect(hintingCheckBox_, SIGNAL(clicked()),
-          SLOT(checkHinting()));
-
-  connect(hintingModeComboBox_, SIGNAL(currentIndexChanged(int)),
-          SLOT(checkHintingMode()));
-  connect(antiAliasingComboBox_, SIGNAL(currentIndexChanged(int)),
-          SLOT(checkAntiAliasing()));
-  connect(lcdFilterComboBox_, SIGNAL(currentIndexChanged(int)),
-          SLOT(checkLcdFilter()));
-
-  connect(autoHintingCheckBox_, SIGNAL(clicked()),
-          SLOT(checkAutoHinting()));
-  connect(showBitmapCheckBox_, SIGNAL(clicked()),
-          SLOT(drawGlyph()));
-  connect(showPointsCheckBox_, SIGNAL(clicked()),
-          SLOT(checkShowPoints()));
-  connect(showPointNumbersCheckBox_, SIGNAL(clicked()),
-          SLOT(drawGlyph()));
-  connect(showOutlinesCheckBox_, SIGNAL(clicked()),
-          SLOT(drawGlyph()));
-
-  connect(sizeDoubleSpinBox_, SIGNAL(valueChanged(double)),
-          SLOT(drawGlyph()));
-  connect(unitsComboBox_, SIGNAL(currentIndexChanged(int)),
-          SLOT(checkUnits()));
-  connect(dpiSpinBox_, SIGNAL(valueChanged(int)),
-          SLOT(drawGlyph()));
-
-  connect(zoomSpinBox_, SIGNAL(valueChanged(double)),
-          SLOT(zoom()));
-
-  connect(previousFontButton_, SIGNAL(clicked()),
-          SLOT(previousFont()));
-  connect(nextFontButton_, SIGNAL(clicked()),
-          SLOT(nextFont()));
-  connect(previousFaceButton_, SIGNAL(clicked()),
-          SLOT(previousFace()));
-  connect(nextFaceButton_, SIGNAL(clicked()),
-          SLOT(nextFace()));
-  connect(previousNamedInstanceButton_, SIGNAL(clicked()),
-          SLOT(previousNamedInstance()));
-  connect(nextNamedInstanceButton_, SIGNAL(clicked()),
-          SLOT(nextNamedInstance()));
-
-  glyphNavigationMapper_ = new QSignalMapper;
-  connect(glyphNavigationMapper_, SIGNAL(mapped(int)),
-          SLOT(adjustGlyphIndex(int)));
-
-  connect(toStartButtonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toM1000Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toM100Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toM10Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toM1Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toP1Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toP10Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toP100Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toP1000Buttonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-  connect(toEndButtonx_, SIGNAL(clicked()),
-          glyphNavigationMapper_, SLOT(map()));
-
-  glyphNavigationMapper_->setMapping(toStartButtonx_, -0x10000);
-  glyphNavigationMapper_->setMapping(toM1000Buttonx_, -1000);
-  glyphNavigationMapper_->setMapping(toM100Buttonx_, -100);
-  glyphNavigationMapper_->setMapping(toM10Buttonx_, -10);
-  glyphNavigationMapper_->setMapping(toM1Buttonx_, -1);
-  glyphNavigationMapper_->setMapping(toP1Buttonx_, 1);
-  glyphNavigationMapper_->setMapping(toP10Buttonx_, 10);
-  glyphNavigationMapper_->setMapping(toP100Buttonx_, 100);
-  glyphNavigationMapper_->setMapping(toP1000Buttonx_, 1000);
-  glyphNavigationMapper_->setMapping(toEndButtonx_, 0x10000);
-
-  connect(&engine_->fontFileManager(), &FontFileManager::currentFileChanged,
-      this, &MainGUI::watchCurrentFont);
-}
-
-
-void
-MainGUI::createActions()
-{
-  loadFontsAct_ = new QAction(tr("&Load Fonts"), this);
-  loadFontsAct_->setShortcuts(QKeySequence::Open);
-  connect(loadFontsAct_, SIGNAL(triggered()), SLOT(loadFonts()));
-
-  closeFontAct_ = new QAction(tr("&Close Font"), this);
-  closeFontAct_->setShortcuts(QKeySequence::Close);
-  connect(closeFontAct_, SIGNAL(triggered()), SLOT(closeFont()));
-
-  exitAct_ = new QAction(tr("E&xit"), this);
-  exitAct_->setShortcuts(QKeySequence::Quit);
-  connect(exitAct_, SIGNAL(triggered()), SLOT(close()));
-
-  aboutAct_ = new QAction(tr("&About"), this);
-  connect(aboutAct_, SIGNAL(triggered()), SLOT(about()));
-
-  aboutQtAct_ = new QAction(tr("About &Qt"), this);
-  connect(aboutQtAct_, SIGNAL(triggered()), SLOT(aboutQt()));
-}
-
-
-void
-MainGUI::createMenus()
-{
-  menuFile_ = menuBar()->addMenu(tr("&File"));
-  menuFile_->addAction(loadFontsAct_);
-  menuFile_->addAction(closeFontAct_);
-  menuFile_->addAction(exitAct_);
-
-  menuHelp_ = menuBar()->addMenu(tr("&Help"));
-  menuHelp_->addAction(aboutAct_);
-  menuHelp_->addAction(aboutQtAct_);
-}
-
-
-void
-MainGUI::createStatusBar()
-{
-  statusBar()->showMessage("");
-}
-
-
-void
-MainGUI::setDefaults()
-{
-  Engine::EngineDefaultValues& defaults = engine_->engineDefaults();
-
-  hintingModeComboBoxModel_->setSupportedModes(
-    { defaults.ttInterpreterVersionDefault,
-      defaults.ttInterpreterVersionOther,
-      defaults.ttInterpreterVersionOther1 },
-    { defaults.cffHintingEngineDefault, 
-      defaults.cffHintingEngineOther });
-
-  // the next four values always non-negative
-  currentFontIndex_ = 0;
-  currentFaceIndex_ = 0;
-  currentNamedInstanceIndex_ = 0;
-  currentGlyphIndex_ = 0;
-
-  currentCFFHintingMode_
-    = hintingModeComboBoxModel_->cffModeToIndex(
-    defaults.cffHintingEngineDefault);
-  currentTTInterpreterVersion_
-    = hintingModeComboBoxModel_->ttInterpreterVersionToIndex(
-        defaults.ttInterpreterVersionDefault);
-
-  hintingCheckBox_->setChecked(true);
-
-  antiAliasingComboBox_->setCurrentIndex(
-    AntiAliasingComboBoxModel::AntiAliasing_Normal);
-  lcdFilterComboBox_->setCurrentIndex(
-    LCDFilterComboBoxModel::LCDFilter_Light);
-
-  horizontalHintingCheckBox_->setChecked(true);
-  verticalHintingCheckBox_->setChecked(true);
-  blueZoneHintingCheckBox_->setChecked(true);
-
-  showBitmapCheckBox_->setChecked(true);
-  showOutlinesCheckBox_->setChecked(true);
-
-  gammaSlider_->setValue(18); // 1.8
-  sizeDoubleSpinBox_->setValue(20);
-  dpiSpinBox_->setValue(96);
-  zoomSpinBox_->setValue(20);
-
-  checkHinting();
-  checkHintingMode();
-  checkAutoHinting();
-  checkAntiAliasing();
-  checkLcdFilter();
-  checkShowPoints();
-  checkUnits();
-  checkCurrentFontIndex();
-  checkCurrentFaceIndex();
-  checkCurrentNamedInstanceIndex();
-  adjustGlyphIndex(0);
-  zoom();
-}
-
-
-void
-MainGUI::readSettings()
-{
-  QSettings settings;
-//  QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint();
-//  QSize size = settings.value("size", QSize(400, 400)).toSize();
-//  resize(size);
-//  move(pos);
-}
-
-
-void
-MainGUI::writeSettings()
-{
-  QSettings settings;
-//  settings.setValue("pos", pos());
-//  settings.setValue("size", size());
-}
-
-
-// end of maingui.cpp
diff --git a/src/ftinspect/maingui.hpp b/src/ftinspect/maingui.hpp
deleted file mode 100644
index 97625af..0000000
--- a/src/ftinspect/maingui.hpp
+++ /dev/null
@@ -1,251 +0,0 @@
-// maingui.hpp
-
-// Copyright (C) 2016-2022 by Werner Lemberg.
-
-
-#pragma once
-
-#include "engine/engine.hpp"
-#include "glyphcomponents/glyphbitmap.hpp"
-#include "glyphcomponents/glyphoutline.hpp"
-#include "glyphcomponents/glyphpointnumbers.hpp"
-#include "glyphcomponents/glyphpoints.hpp"
-#include "widgets/customwidgets.hpp"
-#include "models/customcomboboxmodels.hpp"
-
-#include <QAction>
-#include <QCheckBox>
-#include <QCloseEvent>
-#include <QComboBox>
-#include <QDoubleSpinBox>
-#include <QFileSystemWatcher>
-#include <QGridLayout>
-#include <QHash>
-#include <QHBoxLayout>
-#include <QLabel>
-#include <QList>
-#include <QMainWindow>
-#include <QMap>
-#include <QMenu>
-#include <QMenuBar>
-#include <QPen>
-#include <QPushButton>
-#include <QScrollBar>
-#include <QSignalMapper>
-#include <QSlider>
-#include <QSpinBox>
-#include <QStatusBar>
-#include <QTabWidget>
-#include <QTimer>
-#include <QVariant>
-#include <QVBoxLayout>
-
-#include <ft2build.h>
-#include <freetype/ftlcdfil.h>
-
-
-class MainGUI
-: public QMainWindow
-{
-  Q_OBJECT
-
-public:
-  MainGUI(Engine* engine);
-  ~MainGUI();
-
-  void setDefaults();
-
-  friend class Engine;
-  friend FT_Error faceRequester(FTC_FaceID,
-                                FT_Library,
-                                FT_Pointer,
-                                FT_Face*);
-
-protected:
-  void closeEvent(QCloseEvent*);
-
-private slots:
-  void about();
-  void aboutQt();
-  void adjustGlyphIndex(int);
-  void checkAntiAliasing();
-  void checkAutoHinting();
-  void checkCurrentFaceIndex();
-  void checkCurrentFontIndex();
-  void checkCurrentNamedInstanceIndex();
-  void checkHinting();
-  void checkHintingMode();
-  void checkLcdFilter();
-  void checkShowPoints();
-  void checkUnits();
-  void closeFont();
-  void drawGlyph();
-  void loadFonts();
-  void nextFace();
-  void nextFont();
-  void nextNamedInstance();
-  void previousFace();
-  void previousFont();
-  void previousNamedInstance();
-  void watchCurrentFont();
-  void zoom();
-
-private:
-  Engine* engine_;
-  
-  int currentFontIndex_;
-
-  long currentNumberOfFaces_;
-  long currentFaceIndex_;
-
-  int currentNumberOfNamedInstances_;
-  int currentNamedInstanceIndex_;
-
-  int currentNumberOfGlyphs_;
-  int currentGlyphIndex_;
-
-  int currentCFFHintingMode_;
-  int currentTTInterpreterVersion_;
-
-  // layout related stuff
-  GlyphOutline *currentGlyphOutlineItem_;
-  GlyphPoints *currentGlyphPointsItem_;
-  GlyphPointNumbers *currentGlyphPointNumbersItem_;
-  GlyphBitmap *currentGlyphBitmapItem_;
-
-  QAction *aboutAct_;
-  QAction *aboutQtAct_;
-  QAction *closeFontAct_;
-  QAction *exitAct_;
-  QAction *loadFontsAct_;
-
-  QCheckBox *autoHintingCheckBox_;
-  QCheckBox *blueZoneHintingCheckBox_;
-  QCheckBox *hintingCheckBox_;
-  QCheckBox *horizontalHintingCheckBox_;
-  QCheckBox *segmentDrawingCheckBox_;
-  QCheckBox *showBitmapCheckBox_;
-  QCheckBox *showOutlinesCheckBox_;
-  QCheckBox *showPointNumbersCheckBox_;
-  QCheckBox *showPointsCheckBox_;
-  QCheckBox *verticalHintingCheckBox_;
-
-  AntiAliasingComboBoxModel* antiAliasingComboBoxModel_;
-  HintingModeComboBoxModel* hintingModeComboBoxModel_;
-  LCDFilterComboBoxModel* lcdFilterComboboxModel_;
-
-  QComboBox *antiAliasingComboBox_;
-  QComboBox *hintingModeComboBox_;
-  QComboBox *lcdFilterComboBox_;
-  QComboBox *unitsComboBox_;
-
-  QDoubleSpinBox *sizeDoubleSpinBox_;
-
-  QGraphicsScene *glyphScene_;
-  QGraphicsViewx *glyphView_;
-
-  QGridLayout *fontLayout;
-  QGridLayout *infoRightLayout;
-
-  QHBoxLayout *antiAliasingLayout_;
-  QHBoxLayout *blueZoneHintingLayout_;
-  QHBoxLayout *ftinspectLayout_;
-  QHBoxLayout *gammaLayout_;
-  QHBoxLayout *hintingModeLayout_;
-  QHBoxLayout *horizontalHintingLayout_;
-  QHBoxLayout *infoLeftLayout_;
-  QHBoxLayout *lcdFilterLayout_;
-  QHBoxLayout *navigationLayout_;
-  QHBoxLayout *pointNumbersLayout_;
-  QHBoxLayout *segmentDrawingLayout_;
-  QHBoxLayout *sizeLayout_;
-  QHBoxLayout *verticalHintingLayout_;
-
-  QLabel *antiAliasingLabel_;
-  QLabel *dpiLabel_;
-  QLabel *fontFilenameLabel_;
-  QLabel *fontNameLabel_;
-  QLabel *gammaLabel_;
-  QLabel *glyphIndexLabel_;
-  QLabel *glyphNameLabel_;
-  QLabel *hintingModeLabel_;
-  QLabel *lcdFilterLabel_;
-  QLabel *sizeLabel_;
-  QLabel *zoomLabel_;
-
-  QLocale *locale_;
-
-  QMenu *menuFile_;
-  QMenu *menuHelp_;
-
-  QPen axisPen_;
-  QPen blueZonePen_;
-  QPen gridPen_;
-  QPen offPen_;
-  QPen onPen_;
-  QPen outlinePen_;
-  QPen segmentPen_;
-
-  QPushButton *nextFaceButton_;
-  QPushButton *nextFontButton_;
-  QPushButton *nextNamedInstanceButton_;
-  QPushButton *previousFaceButton_;
-  QPushButton *previousFontButton_;
-  QPushButton *previousNamedInstanceButton_;
-
-  QPushButton *toEndButtonx_;
-  QPushButton *toM1000Buttonx_;
-  QPushButton *toM100Buttonx_;
-  QPushButton *toM10Buttonx_;
-  QPushButton *toM1Buttonx_;
-  QPushButton *toP1000Buttonx_;
-  QPushButton *toP100Buttonx_;
-  QPushButton *toP10Buttonx_;
-  QPushButton *toP1Buttonx_;
-  QPushButton *toStartButtonx_;
-
-  QSignalMapper *glyphNavigationMapper_;
-
-  QSlider *gammaSlider_;
-
-  QSpinBox *dpiSpinBox_;
-  ZoomSpinBox *zoomSpinBox_;
-
-  QTabWidget *tabWidget_;
-
-  QVBoxLayout *generalTabLayout_;
-  QVBoxLayout *leftLayout_;
-  QVBoxLayout *rightLayout_;
-
-  QVector<QRgb> grayColorTable_;
-  QVector<QRgb> monoColorTable_;
-
-  QWidget *ftinspectWidget_;
-  QWidget *generalTabWidget_;
-  QWidget *leftWidget_;
-  QWidget *rightWidget_;
-  QWidget *mmgxTabWidget_;
-
-  enum Units
-  {
-    Units_px,
-    Units_pt
-  };
-
-  void showFont();
-  void applySettings();
-  void clearStatusBar();
-
-  void createActions();
-  void createConnections();
-  void createLayout();
-  void createMenus();
-  void createStatusBar();
-  void setGraphicsDefaults();
-
-  void readSettings();
-  void writeSettings();
-};
-
-
-// end of maingui.hpp