gui.cpp

   1 #include "gui.h"
   2 #include "modules/colorModel.h" //      using color coefficients for RGB->gray conversion
   3
   4 using namespace std;
   5
   6 ////    Non-member functions
   7 static vector<double> getColorPSNR(const QImage &a,const QImage &b) {
   8         int width= a.width(), height= a.height();
   9         int x, y;
  10         QRgb *line1, *line2;
  11         int sum, sumR, sumG, sumB;
  12         sum= sumR= sumG= sumB= 0;
  13         for (y=0; y<height; ++y) {
  14                 line1= (QRgb*)a.scanLine(y);
  15                 line2= (QRgb*)b.scanLine(y);
  16                 for (x=0; x<width; ++x) {
  17                         sum+= sqr( getGray(line1[x]) - getGray(line2[x]) );
  18                         sumR+= sqr( qRed(line1[x]) - qRed(line2[x]) );
  19                         sumG+= sqr( qGreen(line1[x]) - qGreen(line2[x]) );
  20                         sumB+= sqr( qBlue(line1[x]) - qBlue(line2[x]) );
  21                 }
  22         }
  23         vector<double> result(4);
  24         result[0]= sumR;
  25         result[1]= sumG;
  26         result[2]= sumB;
  27         result[3]= sum;
  28         double mul= double(width*height) * double(sqr(255));
  29         for (vector<double>::iterator it=result.begin(); it!=result.end(); ++it)
  30                 *it= 10.0 * log10(mul / *it);
  31         return result;
  32 }
  33 static QString getPSNRmessage(const QImage &img1,const QImage &img2) {
  34         vector<double> psnr= getColorPSNR(img1,img2);
  35         return QObject::tr("gray PSNR: %3 dB\nR,G,B: %4,%5,%6 dB") .arg(psnr[3],0,'f',2)
  36                 .arg(psnr[0],0,'f',2) .arg(psnr[1],0,'f',2) .arg(psnr[2],0,'f',2);
  37 }
  38
  39
  40 ////    Public members
  41 ImageViewer::ImageViewer(QApplication &app)
  42 : modules_settings( IRoot::newCompatibleModule() ), modules_encoding(0)
  43 , zoom(0), lastPath(QDir::current().filePath("x"))
  44 , readAct(this), writeAct(this), compareAct(this), exitAct(this)
  45 , settingsAct(this), encodeAct(this), saveAct(this)
  46 , loadAct(this), clearAct(this), iterateAct(this), zoomIncAct(this), zoomDecAct(this) {
  47 //      try to load guessed language translation
  48         if ( translator.load( "lang-"+QLocale::system().name(), app.applicationDirPath() ) )
  49                 app.installTranslator(&translator);
  50 //      create a scrolling area with a label for viewing images
  51         imageLabel= new QLabel(this);
  52         imageLabel->setBackgroundRole(QPalette::Dark);
  53         imageLabel->setSizePolicy(QSizePolicy::Ignored,QSizePolicy::Ignored);
  54
  55         QScrollArea *scrollArea= new QScrollArea(this);
  56         scrollArea->setBackgroundRole(QPalette::Dark);
  57         scrollArea->setWidget(imageLabel);
  58         setCentralWidget(scrollArea);
  59
  60         setStatusBar(new QStatusBar(this));
  61
  62         createActions();
  63         createMenus();
  64         translateUi();
  65         updateActions();
  66
  67         resize(800,600);
  68 }
  69
  70 ////    Private methods
  71 void ImageViewer::createActions() {
  72 //      create all actions and connect them to the appropriate slots
  73         #define A(name) \
  74                 aConnect( &name##Act, SIGNAL(triggered()), this, SLOT(name()) );
  75         #define AS(name,signal) \
  76                 aConnect( &name##Act, SIGNAL(triggered()), this, SLOT(signal()) );
  77         A(read)
  78         A(write)
  79         A(compare)
  80         AS(exit,close)
  81
  82         A(settings)
  83         A(encode)
  84         A(save)
  85
  86         A(load)
  87         A(clear)
  88         A(iterate)
  89         A(zoomInc)
  90         A(zoomDec)
  91
  92         #undef A
  93         #undef AS
  94 }
  95 void ImageViewer::createMenus() {
  96         imageMenu.addAction(&readAct);
  97         imageMenu.addAction(&writeAct);
  98         imageMenu.addSeparator();
  99         imageMenu.addAction(&compareAct);
 100         imageMenu.addSeparator();
 101         imageMenu.addAction(&exitAct);
 102
 103         compMenu.addAction(&settingsAct);
 104         compMenu.addAction(&encodeAct);
 105         compMenu.addAction(&saveAct);
 106
 107         decompMenu.addAction(&loadAct);
 108         decompMenu.addAction(&clearAct);
 109         decompMenu.addAction(&iterateAct);
 110         decompMenu.addSeparator();
 111         decompMenu.addAction(&zoomIncAct);
 112         decompMenu.addAction(&zoomDecAct);
 113
 114         menuBar()->addMenu(&imageMenu);
 115         menuBar()->addMenu(&compMenu);
 116         menuBar()->addMenu(&decompMenu);
 117         //menuBar()->addMenu(langMenu);
 118         //menuBar()->addMenu(helpMenu);
 119 }
 120 void ImageViewer::translateUi() {
 121         setWindowTitle(tr("Fractal Image Compressor"));
 122 //      set action names and shortcuts
 123         #define A(name,shortcut,text) \
 124                 name##Act.setText(tr(text)); \
 125                 name##Act.setShortcut(tr(shortcut));
 126         A(read,         "Ctrl+R",       "Read...")
 127         A(write,        "Ctrl+W",       "Write...")
 128         A(compare,      "",                     "Compare to...")
 129         A(exit,         "Ctrl+Q",       "Quit")
 130
 131         A(settings,     "",                     "Settings")
 132         A(encode,       " ",            "Start encoding")
 133         A(save,         "Ctrl+S",       "Save FIC...")
 134
 135         A(load,         "Ctrl+L",       "Load FIC...")
 136         A(clear,        "Ctrl+C",       "Clear image")
 137         A(iterate,      "Ctrl+I",       "Iterate image")
 138         A(zoomInc,      "Ctrl++",       "Increase zoom")
 139         A(zoomDec,      "Ctrl+-",       "Decrease zoom")
 140         #undef A
 141
 142 //      set the tiles of menu items
 143         #define M(name,title) \
 144                 name##Menu.setTitle(tr(title));
 145         M(image,        "&Image");
 146         M(comp,         "&Compression");
 147         M(decomp,       "&Decompression");
 148         #undef M
 149 }
 150 void ImageViewer::updateActions() {
 151         bool pixmapOk= imageLabel->pixmap();
 152         IRoot::Mode mode= modules_encoding ? modules_encoding->getMode() : IRoot::Clear;
 153
 154         //readAct.setEnabled(true);
 155         writeAct.setEnabled(pixmapOk);
 156         compareAct.setEnabled(pixmapOk);
 157         //exitAct.setEnabled(true);
 158
 159         //settingsAct.setEnabled(true);
 160         encodeAct.setEnabled(pixmapOk);
 161         saveAct.setEnabled( mode != IRoot::Clear );
 162
 163         //loadAct.setEnabled(true);
 164         clearAct.setEnabled  ( mode != IRoot::Clear );
 165         iterateAct.setEnabled( mode != IRoot::Clear );
 166         zoomIncAct.setEnabled( mode != IRoot::Clear && zoom<3 );
 167         zoomDecAct.setEnabled( mode != IRoot::Clear && zoom>0 );
 168 }
 169
 170 ////    Private slots
 171 void ImageViewer::read() {
 172 //      get the file name
 173         QString fname= QFileDialog::getOpenFileName( this, tr("Read image file")
 174         , lastDir(), tr("PNG images (*.png)\nAll files (*.*)") );
 175         if (fname.isEmpty())
 176         //      no file selected
 177                 return;
 178         lastPath.setPath(fname);
 179 //      try to load, check for errors
 180         QImage image(fname);
 181         if (image.isNull()) {
 182                 QMessageBox::information( this, tr("Error"), tr("Cannot open %1.").arg(fname) );
 183                 return;
 184         }
 185 //      convert to 32-bits
 186         if (image.depth()<32)
 187                 image= image.convertToFormat(QImage::Format_RGB32);
 188 //  display it
 189         changePixmap(QPixmap::fromImage(image));
 190         updateActions();
 191 }
 192 void ImageViewer::write() {
 193 //      get the file name
 194         QString fname= QFileDialog::getSaveFileName( this, tr("Write image file")
 195         , lastDir(), tr("PNG images (*.png)\nAll files (*.*)") );
 196         if (fname.isEmpty())
 197                 return;
 198         lastPath.setPath(fname);
 199 //      try to save the image
 200         if ( !imageLabel->pixmap()->save(fname) ) {
 201                 QMessageBox::information( this, tr("Error"), tr("Cannot write file %1.").arg(fname) );
 202                 return;
 203         }
 204         updateActions();
 205 }
 206 void ImageViewer::compare() {
 207 //      let the user choose a file
 208         QString fname= QFileDialog::getOpenFileName
 209         ( this, tr("Compare to image"), lastDir()
 210         , tr("PNG images (*.png)\nJFIF images (*.jpg *.jpeg)\nAll files (*.*)") );
 211         if (fname.isEmpty())
 212                 return;
 213         lastPath.setPath(fname);
 214 //      open the file as an image, check it's got the same dimensions as the diplayed one
 215         QImage image(fname);
 216         image= image.convertToFormat(QImage::Format_RGB32);
 217         if (image.isNull()) {
 218                 QMessageBox::information( this, tr("Error"), tr("Cannot open %1.").arg(fname) );
 219                 return;
 220         }
 221         if ( image.width()!=imageLabel->pixmap()->width()
 222         || image.height()!=imageLabel->pixmap()->height() ) {
 223                 QMessageBox::information
 224                 ( this, tr("Error"), tr("Images don't have the same dimensions.").arg(fname) );
 225                 return;
 226         }
 227 //      compute the PSNRs and display them
 228         QString message= getPSNRmessage( image, imageLabel->pixmap()->toImage() );
 229         QMessageBox::information( this, tr("Comparison"), message );
 230 }
 231 void ImageViewer::settings() {
 232         IRoot *newSettings= clone(modules_settings);
 233         SettingsDialog dialog(this,newSettings);
 234         newSettings= dialog.getSettings();
 235         if ( dialog.exec() )
 236         //      the dialog wasn't cancelled -> swap with the current and new settings
 237                 swap(newSettings,modules_settings);
 238         delete newSettings;
 239 }
 240 void ImageViewer::encode() {
 241         EncodingProgress::create(this);
 242 }
 243 void ImageViewer::encDone() {
 244         int encMsecs;
 245         IRoot *modules_encoded= EncodingProgress::destroy(encMsecs);
 246
 247         if (modules_encoded) { // encoding successful - iterate the image and display some info
 248         //      replace the old state
 249                 delete modules_encoding;
 250                 modules_encoding= modules_encoded;
 251         //      decode the image
 252                 QImage beforeImg= modules_encoding->toImage();
 253
 254                 QTime decTime;
 255                 decTime.start();
 256                 modules_encoding->decodeAct(MTypes::Clear);
 257                 modules_encoding->decodeAct(MTypes::Iterate,AutoIterationCount);
 258                 int decMsecs= decTime.elapsed();
 259
 260                 QImage afterImg= modules_encoding->toImage();
 261                 changePixmap( QPixmap::fromImage(afterImg) );
 262         //      show some info
 263                 QString message= tr("Time to encode: %1 seconds\nTime to decode: %2 seconds\n")
 264                         .arg(encMsecs/1000.0) .arg(decMsecs/1000.0)     + getPSNRmessage(beforeImg,afterImg);
 265                 QMessageBox::information( this, tr("encoded"), message );
 266                 encData.clear();
 267         }
 268
 269         updateActions();
 270 }
 271 void ImageViewer::save() {
 272 //      get a filename to suggest
 273     QFileInfo finfo(lastPath.path());
 274     QString fname= finfo.dir().filePath( finfo.completeBaseName() + tr(".fic") );
 275         fname= QFileDialog::getSaveFileName
 276         ( this, tr("Save encoded image"), fname, tr("FIC images (*.fic)") );
 277         if (fname.isEmpty())
 278                 return;
 279         lastPath.setPath(fname);
 280         if ( !modules_encoding->toFile( fname.toStdString().c_str() ) )
 281                 QMessageBox::information( this, tr("Error"), tr("Cannot write file %1.").arg(fname) );
 282 }
 283 void ImageViewer::load() {
 284         QString fname= QFileDialog::getOpenFileName
 285         ( this, tr("Load encoded image"), lastDir(), tr("FIC images (*.fic)") );
 286         if (fname.isEmpty())
 287                 return;
 288         lastPath.setPath(fname);
 289 //      IRoot needs to be loaded from cleared state
 290         IRoot *modules_old= modules_encoding;
 291         modules_encoding= clone(modules_settings,Module::ShallowCopy);
 292
 293         string decData;
 294         bool error= !file2string( fname.toStdString().c_str(), decData );
 295         if (!error) {
 296                 stringstream stream(decData);
 297
 298                 error= !modules_encoding->fromStream( stream, zoom );
 299         }
 300
 301         if (error) {
 302                 QMessageBox::information( this, tr("Error"), tr("Cannot load file %1.").arg(fname) );
 303                 swap(modules_encoding,modules_old);
 304         } else { // loading was successful
 305                 swap(encData,decData);
 306                 modules_encoding->decodeAct(Clear);
 307                 modules_encoding->decodeAct(MTypes::Iterate,AutoIterationCount);
 308                 changePixmap( QPixmap::fromImage(modules_encoding->toImage()) );
 309                 updateActions();
 310         }
 311
 312         delete modules_old;
 313 }
 314 void ImageViewer::clear() {
 315         modules_encoding->decodeAct(Clear);
 316         changePixmap( QPixmap::fromImage(modules_encoding->toImage()) );
 317         updateActions();
 318 }
 319 void ImageViewer::iterate() {
 320         modules_encoding->decodeAct(Iterate);
 321         changePixmap( QPixmap::fromImage(modules_encoding->toImage()) );
 322         updateActions();
 323 }
 324 void ImageViewer::zoomInc() {
 325         ++zoom;
 326         if (!rezoom())
 327                 --zoom, QMessageBox::information( this, tr("Error"), tr("Zooming failed.") );
 328 }
 329 void ImageViewer::zoomDec() {
 330         --zoom;
 331         ASSERT(zoom>=0);
 332         if (!rezoom())
 333                 ++zoom, QMessageBox::information( this, tr("Error"), tr("Zooming failed.") );
 334 }
 335
 336 bool ImageViewer::rezoom() {
 337 //      create a stream that contains the "saved image"
 338         stringstream stream;
 339         if ( encData.empty() ) {        // cache is empty - we have to create it (save the image)
 340                 if ( !modules_encoding->toStream(stream) )
 341                         return false;
 342                 encData= stream.str();
 343         } else                                          // reusing the cache
 344                 stream.str(encData);
 345 //      reload the image from the stream
 346         IRoot *newRoot= clone(modules_settings,Module::ShallowCopy);
 347         if ( newRoot->fromStream(stream,zoom) ) {
 348                 delete modules_encoding;
 349                 modules_encoding= newRoot;
 350         } else {
 351                 delete newRoot;
 352                 return false;
 353         }
 354 //      successfully reloaded -> auto-iterate the image and show it
 355         modules_encoding->decodeAct(MTypes::Clear);
 356         modules_encoding->decodeAct(MTypes::Iterate,AutoIterationCount);
 357         changePixmap( QPixmap::fromImage(modules_encoding->toImage()) );
 358         updateActions();
 359         return true;
 360 }
 361
 362
 363 ////    SettingsDialog class
 364
 365 SettingsDialog::SettingsDialog( ImageViewer *parent, IRoot *settingsHolder )
 366 : QDialog(parent,Qt::Dialog), settings(settingsHolder) {
 367         setWindowTitle(tr("Compression settings"));
 368         setModal(true);
 369 //      create a grid layout for the dialog
 370         QGridLayout *layout= new QGridLayout;
 371         setLayout(layout);
 372 //      add a tree widget
 373         this->treeWidget= new QTreeWidget(this);
 374         treeWidget->setHeaderLabel(tr("Modules"));
 375         layout->addWidget(treeWidget,0,0);
 376 //      add a group-box to display settings of a module
 377         this->setBox= new QGroupBox(this);
 378         layout->addWidget(setBox,0,1);
 379 //      add a load/save button-box and connect it to a slot of this dialog
 380         this->loadSaveButtons= new QDialogButtonBox
 381         ( QDialogButtonBox::Open|QDialogButtonBox::Save, Qt::Horizontal, this );
 382         aConnect( loadSaveButtons, SIGNAL(clicked(QAbstractButton*))
 383         , this, SLOT(loadSaveClick(QAbstractButton*)) );
 384         layout->addWidget(loadSaveButtons,1,0,Qt::AlignLeft);
 385 //      add a button-box and connect the clicking actions
 386         QDialogButtonBox *buttons= new QDialogButtonBox
 387         ( QDialogButtonBox::Ok|QDialogButtonBox::Cancel, Qt::Horizontal, this );
 388         layout->addWidget(buttons,1,1); // the right-bottom cell
 389         aConnect( buttons, SIGNAL(accepted()), this, SLOT(accept()) );
 390         aConnect( buttons, SIGNAL(rejected()), this, SLOT(reject()) );
 391 //      create the tree
 392         QTreeWidgetItem *treeRoot= new QTreeWidgetItem;
 393         treeWidget->addTopLevelItem(treeRoot);
 394         treeRoot->setText( 0, tr("Root") );
 395
 396         aConnect( treeWidget, SIGNAL(currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*))
 397         , this, SLOT(currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)) );
 398
 399         initialize();
 400 }
 401 void SettingsDialog::initialize() {
 402         QTreeWidgetItem *treeRoot= treeWidget->topLevelItem(0);
 403         ASSERT( treeRoot && settings && setBox );
 404         clearContainer( treeRoot->takeChildren() );
 405         settings->adjustSettings(-1,treeRoot,setBox);
 406         treeWidget->setCurrentItem(treeRoot);
 407         treeWidget->expandAll();
 408 }
 409 void SettingsDialog::currentItemChanged(QTreeWidgetItem *curItem,QTreeWidgetItem*) {
 410 //      get the module that should show its settings
 411         ASSERT(curItem);
 412         Module *curMod= static_cast<Module*>( curItem->data(0,Qt::UserRole).value<void*>() );
 413         ASSERT(curMod);
 414 //      clear the settings box and make the module fill it
 415         clearContainer( setBox->children() );
 416         setBox->setTitle( tr("%1 module settings") .arg(curMod->info().name) );
 417         curMod->adjustSettings(-1,0,setBox);
 418 }
 419 void SettingsDialog::settingChanges(int which) {
 420         QTreeWidgetItem *tree= treeWidget->currentItem();
 421         Module *module= static_cast<Module*>( tree->data(0,Qt::UserRole).value<void*>() );
 422         module->adjustSettings(which,tree,setBox);
 423 }
 424 void SettingsDialog::loadSaveClick(QAbstractButton *button) {
 425         QDialogButtonBox::StandardButton test= loadSaveButtons->standardButton(button);
 426         switch ( test ) {
 427         case QDialogButtonBox::Open: { // open-button has been clicked
 428         //      ask for the name to load from
 429                 QString fname= QFileDialog::getOpenFileName( this, tr("Load settings file")
 430                 , parentViewer().lastDir(), tr("FIC settings (*.fms)") );
 431                 if (fname.isEmpty())
 432                         return;
 433         //      try to load the settings
 434                 IRoot *newSettings= clone(settings,Module::ShallowCopy);
 435                 if ( newSettings->allSettingsFromFile(fname.toStdString().c_str()) ) {
 436                         delete settings;
 437                         settings= newSettings;
 438                         initialize();
 439                 } else {
 440                         QMessageBox::information( this, tr("Error")
 441                         , tr("Cannot load settings from %1.").arg(fname) );
 442                         delete newSettings;
 443                 }
 444         }       break;
 445         case QDialogButtonBox::Save: { // save-button has been clicked
 446         //      ask for the name to save in
 447                 QString fname= QFileDialog::getSaveFileName( this, tr("Save settings file")
 448                 , parentViewer().lastDir(), tr("FIC settings (*.fms)") );
 449                 if (fname.isEmpty())
 450                         return;
 451         //      try to save the settings
 452                 if ( !settings->allSettingsToFile(fname.toStdString().c_str()) )
 453                         QMessageBox::information( this, tr("Error")
 454                         , tr("Cannot save settings into %1.").arg(fname) );
 455         }       break;
 456         default:
 457                 ASSERT(false);
 458         }
 459 }
 460
 461 ////    GUI-related Module members
 462 namespace NOSPACE {
 463         QWidget* newSettingsWidget(Module::ChoiceType type,QWidget *parent) {
 464                 QWidget *result=0;
 465                 switch (type) {
 466                 case Module::Int:
 467                 case Module::IntLog2:
 468                         result= new QSpinBox(parent);
 469                         break;
 470                 case Module::Float:
 471                         result= new QDoubleSpinBox(parent);
 472                         break;
 473                 case Module::ModuleCombo:
 474                 case Module::Combo:
 475                         result= new QComboBox(parent);
 476                         break;
 477                 default:
 478                         ASSERT(false);
 479                 }//     switch
 480                 return result;
 481         }
 482 }
 483 void Module::adjustSettings(int which,QTreeWidgetItem *myTree,QGroupBox *setBox) {
 484         if (which<0) {
 485         //      no change has really happened
 486                 ASSERT(which==-1);
 487                 if (myTree) {
 488                 //      I should create the subtree -> store this-pointer as data
 489                         ASSERT( myTree->childCount() == 0 );
 490                         myTree->setData( 0, Qt::UserRole, QVariant::fromValue((void*)this) );
 491                         if (!settings) {
 492                                 myTree->setFlags(0);
 493                                 return;
 494                         }
 495                 //      find child modules and make them create their subtrees
 496                         const SettingsTypeItem *setType= info().setType;
 497                         const SettingsItem *setItem= settings;
 498                         for (; setType->type.type!=Stop; ++setItem,++setType)
 499                                 if ( setType->type.type == ModuleCombo ) {
 500                                 //      it is a module -> label its subtree-root and recurse (polymorphically)
 501                                         ASSERT(setItem->m);
 502                                         if ( !setItem->m->info().setLength )
 503                                                 continue; // skipping modules with no settings
 504                                         QTreeWidgetItem *childTree= new QTreeWidgetItem(myTree);
 505                                         childTree->setText( 0, QObject::tr(setType->label) );
 506                                         setItem->m->adjustSettings( -1, childTree, 0 );
 507                                 }
 508                 }
 509                 int setLength= info().setLength;
 510                 if ( setBox && setLength ) {
 511                 //      fill the group-box
 512                         QGridLayout *layout= new QGridLayout(setBox);
 513                         setBox->setLayout(layout);
 514                         const SettingsTypeItem *typeItem= info().setType;
 515                         for (int i=0; i<setLength; ++i,++typeItem) {
 516                         //      add a line - one option
 517                                 QString desc(typeItem->desc);
 518                                 QLabel *label= new QLabel( typeItem->label, setBox );
 519                                 label->setToolTip(desc);
 520
 521                                 QWidget *widget= newSettingsWidget( typeItem->type.type, setBox );
 522                                 settingsType2widget( widget, *typeItem );
 523                                 settings2widget( widget, i );
 524                                 widget->setToolTip(desc);
 525                                 label->setBuddy(widget);
 526                                 layout->addWidget( label, i, 0 );
 527                                 layout->addWidget( widget, i, 1 );
 528
 529                                 SignalChanger *changer= new SignalChanger(i,widget,typeItem->type.type);
 530                                 aConnect( changer, SIGNAL(notify(int))                  // assuming the setBox's
 531                                 , setBox->parent(), SLOT(settingChanges(int)) ); // parent is SettingsDialog
 532                         }//     for loop
 533                 }//     filling the box
 534         } else {
 535         //      which>=0... a setting has changed -> get the change from the widget
 536                 ASSERT( which < info().setLength );
 537                 QLayoutItem *item= setBox->layout()->itemAt(2*which+1);
 538                 ASSERT(item);
 539                 widget2settings( item->widget() , which );
 540         //      handle module-type settings
 541                 const SettingsTypeItem *setType= info().setType;
 542                 if ( setType[which].type.type == ModuleCombo ) {
 543                         ASSERT(myTree);
 544                 //      get the new module id and check whether it has really changed
 545                         SettingsItem &setItem= settings[which];
 546                         int newId= (*setType->type.data.compatIDs)[setItem.val.i];
 547                         if ( newId == setItem.m->info().id )
 548                                 return;
 549                 //      replace the child module
 550                         clearContainer( myTree->takeChildren() );
 551                         delete setItem.m;
 552                         setItem.m= ModuleFactory::newModule(newId);
 553                         adjustSettings( -1, myTree, 0 );
 554                 }
 555         //      update module defaults
 556                 ModuleFactory::changeDefaultSettings(*this);
 557         }
 558 }
 559 void Module::widget2settings(const QWidget *widget,int which) {
 560         ASSERT( 0<=which && which<info().setLength );
 561         switch( info().setType[which].type.type ) {
 562         case Int:
 563         case IntLog2:
 564                 settings[which].val.i= debugCast<const QSpinBox*>(widget)->value();
 565                 break;
 566         case Float:
 567                 settings[which].val.f= debugCast<const QDoubleSpinBox*>(widget)->value();
 568                 break;
 569         case ModuleCombo:
 570         case Combo:
 571                 settings[which].val.i= debugCast<const QComboBox*>(widget)->currentIndex();
 572                 break;
 573         default:
 574                 ASSERT(false);
 575         }//     switch
 576 }
 577 void Module::settings2widget(QWidget *widget,int which) {
 578         ASSERT( 0<=which && which<info().setLength );
 579         switch( info().setType[which].type.type ) {
 580         case Int:
 581         case IntLog2:
 582                 debugCast<QSpinBox*>(widget)->setValue( settings[which].val.i );
 583                 break;
 584         case Float:
 585                 debugCast<QDoubleSpinBox*>(widget)->setValue( settings[which].val.f );
 586                 break;
 587         case ModuleCombo:
 588         case Combo:
 589                 debugCast<QComboBox*>(widget)->setCurrentIndex( settings[which].val.i );
 590                 break;
 591         default:
 592                 ASSERT(false);
 593         }//     switch
 594 }
 595 namespace NOSPACE {
 596         class ItemAdder {
 597                 QComboBox *box;
 598         public:
 599                 ItemAdder(QWidget *widget): box( debugCast<QComboBox*>(widget) ) {}
 600                 void operator()(int i) {
 601                         box->addItem( ModuleFactory::moduleName(i) );
 602                         box->setItemData( box->count()-1
 603                         , QObject::tr(ModuleFactory::moduleDescription(i)), Qt::ToolTipRole );
 604                 }
 605         };
 606 }
 607 void Module::settingsType2widget(QWidget *widget,const SettingsTypeItem &typeItem) {
 608         ASSERT( widget );
 609         switch( typeItem.type.type ) {
 610         case IntLog2:
 611                 debugCast<QSpinBox*>(widget)->setPrefix(QObject::tr("2^"));
 612         //      fall through
 613         case Int:
 614                 debugCast<QSpinBox*>(widget)->
 615                         setRange( typeItem.type.data.i[0], typeItem.type.data.i[1] );
 616                 break;
 617         case Float:
 618                 debugCast<QDoubleSpinBox*>(widget)->
 619                         setRange( typeItem.type.data.f[0], typeItem.type.data.f[1] );
 620                 break;
 621         case ModuleCombo: {
 622                 const vector<int> &modules= *typeItem.type.data.compatIDs;
 623                 for_each( modules.begin(), modules.end(), ItemAdder(widget) );
 624                 break;
 625                 }
 626         case Combo:
 627                 debugCast<QComboBox*>(widget)->
 628                         addItems( QString(typeItem.type.data.text).split('\n') );
 629                 break;
 630         default:
 631                 ASSERT(false);
 632         }//     switch
 633 }
 634
 635
 636 #ifndef NDEBUG
 637 void ImageViewer::mousePressEvent(QMouseEvent *event) {
 638 //      check the event, get the clicking point coordinates relative to the image
 639         if ( !event || !modules_encoding
 640         || modules_encoding->getMode() == IRoot::Clear)
 641                 return;
 642         const QPoint click= imageLabel->mapFrom( this, event->pos() );
 643 //      get the image
 644         QPixmap pixmap= *imageLabel->pixmap();
 645         if ( click.isNull() )
 646                 return;
 647
 648         static QWidget *debugWidget= 0;
 649         delete debugWidget;
 650         debugWidget= modules_encoding->debugModule(pixmap,click);
 651         debugWidget->setParent(this);
 652         debugWidget->setWindowFlags(Qt::Dialog);
 653         debugWidget->show();
 654
 655         changePixmap(pixmap);
 656 }
 657 #endif
 658
 659
 660 EncodingProgress *EncodingProgress::instance= 0;