Changeset 394216e468 in tspsg for src

Timestamp:

Mar 22, 2010, 9:45:16 PM (14 years ago)

Author:

Oleksii Serdiuk

Branches:

0.1.3.145-beta1-symbian, 0.1.4.170-beta2-bb10, appveyor, imgbot, master, readme

Children:

1babbd6ba3

Parents:

e2abfd326f

Message:

• Fixed a bug when a solution couldn't be found for some tasks while the task had at least one solution (mostly, tasks with a lot of restrictions).
• Fixed a bug when Save As dialog always appeared (even for non-Untitled files) when selecting Save in Unsaved Changes dialog.
• Improved the solution algorithm.
• Moved progress dialog from CTSPSolver to MainWindow?. CTSPSolver doesn't contain any GUI related code now.

+ Added routePartFound() signal to CTSPSolver which is emitted once every time a part of the route is found.
+ Added cancel() slot and wasCanceled() public function to CTSPSolver to be able to cancel a solution process and to know whether it was canceled.
+ Progress is now shown when generating a solution output.
+ Check for updates functionality (only in Windows version at this moment).

Location:

src

Files:

• globals.cpp (added)
• main.cpp (modified) (1 diff)
• mainwindow.cpp (modified) (24 diffs)
• mainwindow.h (modified) (5 diffs)
• os.h (modified) (1 diff)
• settingsdialog.cpp (modified) (1 diff)
• tspmodel.cpp (modified) (16 diffs)
• tspsolver.cpp (modified) (16 diffs)
• tspsolver.h (modified) (2 diffs)

src/main.cpp

@@ -45 +45 @@
         QTextCodec::setCodecForCStrings(QTextCodec::codecForName("utf8"));
         QTextCodec::setCodecForTr(QTextCodec::codecForName("utf8"));
-        app.setOrganizationName("..::Lёppsville::.. Homes");
-        app.setOrganizationDomain("l-homes.org");
+        app.setOrganizationName("Oleksii \"Lёppa\" Serdiuk");
+        app.setOrganizationDomain("oleksii.name");
         app.setApplicationName("TSPSG");
         app.setApplicationVersion(BUILD_VERSION);

src/mainwindow.cpp

@@ -60 +60 @@
 #endif // QT_NO_PRINTER
         connect(actionSettingsPreferences,SIGNAL(triggered()),this,SLOT(actionSettingsPreferencesTriggered()));
+#ifdef Q_OS_WIN32
+        connect(actionHelpCheck4Updates, SIGNAL(triggered()), SLOT(actionHelpCheck4UpdatesTriggered()));
+#endif // Q_OS_WIN32
         connect(actionSettingsLanguageAutodetect,SIGNAL(triggered(bool)),this,SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
         connect(groupSettingsLanguageList,SIGNAL(triggered(QAction *)),this,SLOT(groupSettingsLanguageListTriggered(QAction *)));
@@ -134 +137 @@
         filters.append(tr("All Files") + " (*)");
 
+QString file = QFileInfo(fileName).canonicalPath();
 QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
-QString file = QFileDialog::getOpenFileName(this, tr("Task Load"), QString(), filters.join(";;"), NULL, opts);
+        file = QFileDialog::getOpenFileName(this, tr("Task Load"), file, filters.join(";;"), NULL, opts);
         if (file.isEmpty() || !QFileInfo(file).isFile())
                 return;
@@ -147 +151 @@
 }
 
-void MainWindow::actionFileSaveTriggered()
-{
-        qDebug() << tr("Untitled");
+bool MainWindow::actionFileSaveTriggered()
+{
         if ((fileName == tr("Untitled") + ".tspt") || (!fileName.endsWith(".tspt", Qt::CaseInsensitive)))
-                saveTask();
+                return saveTask();
         else
-                if (tspmodel->saveTask(fileName))
+                if (tspmodel->saveTask(fileName)) {
                         setWindowModified(false);
+                        return true;
+                } else
+                        return false;
 }
 
@@ -165 +171 @@
 {
 static QString selectedFile;
-        if (selectedFile.isEmpty()) {
-                if (fileName == tr("Untitled") + ".tspt") {
-#ifndef QT_NO_PRINTER
-                        selectedFile = "solution.pdf";
+        if (selectedFile.isEmpty())
+                selectedFile = QFileInfo(fileName).canonicalPath();
+        else
+                selectedFile = QFileInfo(selectedFile).canonicalPath();
+        if (!selectedFile.isEmpty())
+                selectedFile += "/";
+        if (fileName == tr("Untitled") + ".tspt") {
+#ifndef QT_NO_PRINTER
+                selectedFile += "solution.pdf";
 #else
-                        selectedFile = "solution.html";
+                selectedFile += "solution.html";
 #endif // QT_NO_PRINTER
-                } else {
-#ifndef QT_NO_PRINTER
-                        selectedFile = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".pdf";
+        } else {
+#ifndef QT_NO_PRINTER
+                selectedFile += QFileInfo(fileName).completeBaseName() + ".pdf";
 #else
-                        selectedFile = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".html";
+                selectedFile += QFileInfo(fileName).completeBaseName() + ".html";
 #endif // QT_NO_PRINTER
-                }
         }
 
@@ -191 +201 @@
         filters.append(tr("All Files") + " (*)");
 
-QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
+QFileDialog::Options opts(settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog);
 QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, opts);
         if (file.isEmpty())
@@ -211 +221 @@
         if (!(selectedFile.endsWith(".htm",Qt::CaseInsensitive) || selectedFile.endsWith(".html",Qt::CaseInsensitive) || selectedFile.endsWith(".odt",Qt::CaseInsensitive) || selectedFile.endsWith(".txt",Qt::CaseInsensitive)))
                 dw.setFormat("plaintext");
-        dw.write(solutionText->document());
-#else
+        if (!dw.write(solutionText->document()))
+                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(dw.device()->errorString()));
+#else // QT_VERSION >= 0x040500
         // Qt < 4.5 has no QTextDocumentWriter class
 QFile file(selectedFile);
         if (!file.open(QFile::WriteOnly)) {
                 QApplication::restoreOverrideCursor();
+                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(file->errorString()));
                 return;
         }
@@ -258 +270 @@
         if (sd.colorChanged() || sd.fontChanged()) {
                 initDocStyleSheet();
-                if (!output.isEmpty() && sd.colorChanged() && (QMessageBox(QMessageBox::Question,tr("Settings Changed"),tr("You have changed color settings.\nDo you wish to apply them to current solution text?"),QMessageBox::Yes | QMessageBox::No,this).exec() == QMessageBox::Yes)) {
-                        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
-                        solutionText->clear();
-                        solutionText->setHtml(output.join(""));
-                        QApplication::restoreOverrideCursor();
-                }
-        }
-        if (sd.translucencyChanged() != 0) {
+                if (!solutionText->document()->isEmpty() && sd.colorChanged())
+                        QMessageBox::information(this, tr("Settings Changed"), tr("You have changed color settings.\nThey will be applied to the next solution output."));
+        }
+        if (sd.translucencyChanged() != 0)
                 toggleTranclucency(sd.translucencyChanged() == 1);
-        }
 }
 
@@ -283 +290 @@
         if (actionSettingsLanguageAutodetect->isChecked()) {
                 // We have language autodetection. It needs to be disabled to change language.
-                if (QMessageBox(QMessageBox::Question,tr("Language change"),tr("You have language autodetection turned on.\nIt needs to be off.\nDo you wish to turn it off?"),QMessageBox::Yes | QMessageBox::No,this).exec() == QMessageBox::Yes) {
+                if (QMessageBox::question(this, tr("Language change"), tr("You have language autodetection turned on.\nIt needs to be off.\nDo you wish to turn it off?"), QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) {
                         actionSettingsLanguageAutodetect->trigger();
                 } else
@@ -302 +309 @@
 #endif
                 QApplication::restoreOverrideCursor();
-        }
-}
+                QMessageBox::information(this, tr("Settings Changed"), tr("You have changed the application language.\nTo get current solution output in the new language\nyou need to re-run the solution process."));
+        }
+}
+
+#ifdef Q_OS_WIN32
+void MainWindow::actionHelpCheck4UpdatesTriggered()
+{
+        if (!hasUpdater()) {
+                QMessageBox::warning(this, tr("Unsupported Feature"), tr("Sorry, but this feature is not supported on your platform\nor support for this feature was not installed."));
+                return;
+        }
+
+        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+        QProcess::execute("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\"");
+        QApplication::restoreOverrideCursor();
+}
+#endif // Q_OS_WIN32
 
 void MainWindow::actionHelpAboutTriggered()
 {
-//! \todo TODO: Normal about window :-)
 QString title;
 #if defined(Q_OS_WINCE) || defined(Q_OS_SYMBIAN)
@@ -314 +335 @@
         title += QString("<b>TSPSG: TSP Solver and Generator</b><br>");
 #endif // Q_OS_WINCE || Q_OS_SYMBIAN
-        title += QString("%1: <b>%2</b><br>").arg(tr("Version"), BUILD_VERSION);
+        title += QString("%1: <b>%2</b><br>").arg(tr("Version"), QApplication::applicationVersion());
 #if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
-        title += QString("<b>&copy; 2007-%1 Oleksii \"Lёppa\" Serdiuk</b><br>").arg(QDate::currentDate().toString("yyyy"));
+        title += QString("<b>&copy; 2007-%1 <a href=\"http://%2/\">%3</a></b><br>").arg(QDate::currentDate().toString("yyyy"), QApplication::organizationDomain(), QApplication::organizationName());
         title += QString("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sourceforge.net/</a></b>");
 #else
@@ -410 +431 @@
         vb->addLayout(hb2);
 
-        dlg->setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowCloseButtonHint | Qt::MSWindowsFixedSizeDialogHint);
+        dlg->setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowCloseButtonHint);
         dlg->setWindowTitle(tr("About TSPSG"));
         dlg->setLayout(vb);
@@ -453 +474 @@
                         row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
                         if (!ok) {
-                                QMessageBox(QMessageBox::Critical,tr("Data error"),tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1),QMessageBox::Ok,this).exec();
+                                QMessageBox::critical(this, tr("Data error"), tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1));
                                 return;
                         }
@@ -459 +480 @@
                 matrix.append(row);
         }
+
+QProgressDialog pd(this);
+QProgressBar *pb = new QProgressBar(&pd);
+        pb->setAlignment(Qt::AlignCenter);
+        pb->setFormat(tr("%v of %1 parts found").arg(n));
+        pd.setBar(pb);
+        pd.setMaximum(n * 2 + 3);
+        pd.setMinimumDuration(1000);
+        pd.setLabelText(tr("Calculating optimal route..."));
+        pd.setWindowTitle(tr("Solution Progress"));
+        pd.setWindowModality(Qt::ApplicationModal);
+        pd.setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
+        pd.setValue(0);
+
 CTSPSolver solver;
-SStep *root = solver.solve(n,matrix,this);
-        if (!root)
-                return;
-        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
-QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
-        output.clear();
-        output.append("<p>" + tr("Variant #%1").arg(spinVariant->value()) + "</p>");
-        output.append("<p>" + tr("Task:") + "</p>");
-        outputMatrix(matrix, output);
-        output.append("<hr>");
-        output.append("<p>" + tr("Solution of Variant #%1 task").arg(spinVariant->value()) + "</p>");
+        connect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
+        connect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
+SStep *root = solver.solve(n, matrix);
+        disconnect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
+        disconnect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
+        if (!root) {
+                pd.reset();
+                if (!solver.wasCanceled())
+                        QMessageBox::warning(this, tr("Solution Result"), tr("Unable to find a solution.\nMaybe, this task has no solution."));
+                return;
+        }
+        pb->setFormat("%p%");
+        pd.setLabelText(tr("Generating solution output..."));
+        pd.setValue(n + 1);
+
+        solutionText->clear();
+        pd.setValue(n + 2);
+
+        solutionText->setDocumentTitle(tr("Solution of Variant #%1 task").arg(spinVariant->value()));
+        solutionText->append("<p>" + tr("Variant #%1").arg(spinVariant->value()) + "</p>");
+        solutionText->append("<p>" + tr("Task:") + "</p>");
+        solutionText->append(outputMatrix(matrix));
+        solutionText->append("<hr><p>" + tr("Solution of Variant #%1 task").arg(spinVariant->value()) + "</p>");
 SStep *step = root;
         n = 1;
         while (n <= spinCities->value()) {
+                if (pd.wasCanceled()) {
+                        solutionText->clear();
+                        return;
+                }
+                pd.setValue(spinCities->value() + 2 + n);
+
                 if (step->prNode->prNode != NULL || ((step->prNode->prNode == NULL) && (step->plNode->prNode == NULL))) {
                         if (n != spinCities->value()) {
-                                output.append("<p>" + tr("Step #%1").arg(n++) + "</p>");
+                                solutionText->append("<p>" + tr("Step #%1").arg(n++) + "</p>");
                                 if (settings->value("Output/ShowMatrix", DEF_SHOW_MATRIX).toBool() && (!settings->value("Output/UseShowMatrixLimit", DEF_USE_SHOW_MATRIX_LIMIT).toBool() || (settings->value("Output/UseShowMatrixLimit", DEF_USE_SHOW_MATRIX_LIMIT).toBool() && (spinCities->value() <= settings->value("Output/ShowMatrixLimit", DEF_SHOW_MATRIX_LIMIT).toInt())))) {
-                                        outputMatrix(*step, output);
+                                        solutionText->append(outputMatrix(*step));
                                 }
-                                output.append("<p>" + tr("Selected candidate for branching: %1.").arg(tr("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)) + "</p>");
+                                solutionText->append("<p>" + tr("Selected candidate for branching: %1.").arg(tr("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)) + "</p>");
                                 if (!step->alts.empty()) {
 SCandidate cand;
@@ -489 +542 @@
                                                 alts += tr("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
                                         }
-                                        output.append("<p class=\"hasalts\">" + tr("%n alternate candidate(s) for branching: %1.","",step->alts.count()).arg(alts) + "</p>");
+                                        solutionText->append("<p class=\"hasalts\">" + tr("%n alternate candidate(s) for branching: %1.","",step->alts.count()).arg(alts) + "</p>");
                                 }
-                                output.append("<p>&nbsp;</p>");
+                                solutionText->append("<p>&nbsp;</p>");
                         }
                 }
@@ -501 +554 @@
                         break;
         }
+        pd.setValue(spinCities->value() + 2 + n);
+
         if (solver.isOptimal())
-                output.append("<p>" + tr("Optimal path:") + "</p>");
+                solutionText->append("<p>" + tr("Optimal path:") + "</p>");
         else
-                output.append("<p>" + tr("Resulting path:") + "</p>");
-        output.append("<p>&nbsp;&nbsp;" + solver.getSortedPath() + "</p>");
+                solutionText->append("<p>" + tr("Resulting path:") + "</p>");
+        solutionText->append("<p>&nbsp;&nbsp;" + solver.getSortedPath() + "</p>");
         if (isInteger(step->price))
-                output.append("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
+                solutionText->append("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
         else
-                output.append("<p>" + tr("The price is <b>%1</b> units.").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()) + "</p>");
+                solutionText->append("<p>" + tr("The price is <b>%1</b> units.").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()) + "</p>");
         if (!solver.isOptimal()) {
-                output.append("<p>&nbsp;</p>");
-                output.append("<p>" + tr("<b>WARNING!!!</b><br>This result is a record, but it may not be optimal.<br>Iterations need to be continued to check whether this result is optimal or get an optimal one.") + "</p>");
-        }
-        output.append("<p></p>");
-
-        solutionText->setHtml(output.join(""));
-        solutionText->setDocumentTitle(tr("Solution of Variant #%1 task").arg(spinVariant->value()));
+                solutionText->append("<p>&nbsp;</p>");
+                solutionText->append("<p>" + tr("<b>WARNING!!!</b><br>This result is a record, but it may not be optimal.<br>Iterations need to be continued to check whether this result is optimal or get an optimal one.") + "</p>");
+        }
 
         if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
                 // Scrolling to the end of text.
                 solutionText->moveCursor(QTextCursor::End);
-        }
-
+        } else
+                solutionText->moveCursor(QTextCursor::Start);
+
+        pd.setLabelText(tr("Cleaning up..."));
+        pd.setMaximum(0);
+        pd.setCancelButton(NULL);
+        pd.adjustSize();
+        QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
+        solver.cleanup(true);
         toggleSolutionActions();
         tabWidget->setCurrentIndex(1);
-        QApplication::restoreOverrideCursor();
 }
 
@@ -632 +689 @@
 }
 
+bool MainWindow::hasUpdater() const
+{
+#ifdef Q_OS_WIN32
+        return QFile::exists("updater/Update.exe");
+#else // Q_OS_WIN32
+        return false;
+#endif // Q_OS_WIN32
+}
+
 void MainWindow::initDocStyleSheet()
 {
@@ -719 +785 @@
                 if (!ad) {
                         settings->remove("Language");
-                        if (QApplication::overrideCursor() != 0)
-                                QApplication::restoreOverrideCursor();
+                        QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
                         if (isVisible())
                                 QMessageBox::warning(this, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
                         else
                                 QMessageBox::warning(NULL, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
+                        QApplication::restoreOverrideCursor();
                 }
                 return false;
@@ -735 +801 @@
         if (!isWindowModified())
                 return true;
-int res = QMessageBox(QMessageBox::Warning,tr("Unsaved Changes"),tr("Would you like to save changes in current task?"),QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,this).exec();
+int res = QMessageBox::warning(this, tr("Unsaved Changes"), tr("Would you like to save changes in the current task?"), QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
         if (res == QMessageBox::Save)
-                return saveTask();
+                return actionFileSaveTriggered();
         else if (res == QMessageBox::Cancel)
                 return false;
@@ -744 +810 @@
 }
 
-void MainWindow::outputMatrix(const TMatrix &matrix, QStringList &output)
+QString MainWindow::outputMatrix(const TMatrix &matrix) const
 {
 int n = spinCities->value();
-QString line="";
+QString output(""), line;
         output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
         for (int r = 0; r < n; r++) {
@@ -761 +827 @@
         }
         output.append("</table>");
-}
-
-void MainWindow::outputMatrix(const SStep &step, QStringList &output)
+        return output;
+}
+
+QString MainWindow::outputMatrix(const SStep &step) const
 {
 int n = spinCities->value();
-QString line="";
+QString output(""), line;
         output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
         for (int r = 0; r < n; r++) {
@@ -789 +856 @@
         }
         output.append("</table>");
+        return output;
 }
 
@@ -816 +884 @@
         actionFilePrint->setShortcut(QApplication::translate("MainWindow", "Ctrl+P", 0, QApplication::UnicodeUTF8));
 #endif // QT_NO_PRINTER
+#ifdef Q_OS_WIN32
+        actionHelpCheck4Updates->setText(tr("Check for &Updates..."));
+#ifndef QT_NO_TOOLTIP
+        actionHelpCheck4Updates->setToolTip(tr("Check for %1 updates").arg(QApplication::applicationName()));
+#endif // QT_NO_TOOLTIP
+#ifndef QT_NO_STATUSTIP
+        actionHelpCheck4Updates->setStatusTip(tr("Check for %1 updates").arg(QApplication::applicationName()));
+#endif // QT_NO_STATUSTIP
+#endif // Q_OS_WIN32
 }
 
@@ -901 +978 @@
         toolBar->insertAction(actionSettingsPreferences,actionFilePrint);
 #endif // QT_NO_PRINTER
+#ifdef Q_OS_WIN32
+        actionHelpCheck4Updates = new QAction(this);
+        actionHelpCheck4Updates->setEnabled(hasUpdater());
+        menuHelp->insertAction(actionHelpAboutQt, actionHelpCheck4Updates);
+        menuHelp->insertSeparator(actionHelpAboutQt);
+#endif // Q_OS_WIN32
 
         groupSettingsLanguageList = new QActionGroup(this);
@@ -925 +1008 @@
         actionFileSaveAsSolution->setEnabled(enable);
         solutionText->setEnabled(enable);
-        if (!enable)
-                output.clear();
 #ifndef QT_NO_PRINTER
         actionFilePrint->setEnabled(enable);

src/mainwindow.h

@@ -53 +53 @@
         void actionFileNewTriggered();
         void actionFileOpenTriggered();
-        void actionFileSaveTriggered();
+        bool actionFileSaveTriggered();
         void actionFileSaveAsTaskTriggered();
         void actionFileSaveAsSolutionTriggered();
@@ -63 +63 @@
         void actionSettingsLanguageAutodetectTriggered(bool checked);
         void groupSettingsLanguageListTriggered(QAction *action);
+#ifdef Q_OS_WIN32
+        void actionHelpCheck4UpdatesTriggered();
+#endif // Q_OS_WIN32
         void actionHelpAboutTriggered();
 // Buttons
@@ -84 +87 @@
         QString fileName;
         QActionGroup *groupSettingsLanguageList;
-        QStringList output;
 #ifndef QT_NO_PRINTER
         QPrinter *printer;
@@ -90 +92 @@
         QAction *actionFilePrint;
 #endif // QT_NO_PRINTER
+#ifdef Q_OS_WIN32
+        QAction *actionHelpCheck4Updates;
+#endif // Q_OS_WIN32
         QSettings *settings;
         CTSPModel *tspmodel;
@@ -97 +102 @@
 
         void closeEvent(QCloseEvent *ev);
+        bool hasUpdater() const;
         void initDocStyleSheet();
         void loadLangList();
         bool loadLanguage(const QString &lang = QString());
         bool maybeSave();
-        void outputMatrix(const TMatrix &matrix, QStringList &output);
-        void outputMatrix(const SStep &step, QStringList &output);
+        QString outputMatrix(const TMatrix &matrix) const;
+        QString outputMatrix(const SStep &step) const;
         void retranslateUi(bool all = true);
         bool saveTask();

src/os.h

@@ -149 +149 @@
         #define OS "Windows"ARCH
         #define OSID quint8(28)
+#elif defined Q_OS_WINCE_WM
+        #define OS "Windows Mobile"ARCH
+        #define OSID quint8(29)
 #elif defined Q_OS_WINCE
         #define OS "Windows CE"ARCH
-        #define OSID quint8(29)
+        #define OSID quint8(30)
 #else
         #define OS "Unknown"ARCH

src/settingsdialog.cpp

@@ -189 +189 @@
         cbCitiesLimit->setEnabled(cbShowMatrix->isChecked());
         cbCitiesLimit->setChecked(settings->value("UseShowMatrixLimit", DEF_USE_SHOW_MATRIX_LIMIT && cbShowMatrix->isChecked()).toBool());
-        spinCitiesLimit->setEnabled(cbShowMatrix->isChecked());
+        spinCitiesLimit->setEnabled(cbShowMatrix->isChecked() && cbCitiesLimit->isChecked());
         spinCitiesLimit->setValue(settings->value("ShowMatrixLimit", DEF_SHOW_MATRIX_LIMIT).toInt());
         spinCitiesLimit->setMaximum(MAX_NUM_CITIES);

src/tspmodel.cpp

@@ -81 +81 @@
         } else if (role == Qt::DisplayRole || role == Qt::EditRole) {
                 if (index.row() < nCities && index.column() < nCities)
-                        if (table[index.row()][index.column()] == INFINITY)
+                        if (table.at(index.row()).at(index.column()) == INFINITY)
                                 return tr(INFSTR);
                         else
 //! \hack HACK: Converting to string to prevent spinbox in edit mode
-                                return QVariant(table[index.row()][index.column()]).toString();
+                                return QVariant(table.at(index.row()).at(index.column())).toString();
                 else
                         return QVariant();
@@ -139 +139 @@
         if (!f.open(QIODevice::ReadOnly)) {
                 QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Load"),QString(tr("Unable to open task file.\nError: %1")).arg(f.errorString()),QMessageBox::Ok).exec();
+                QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Load"), QString(tr("Unable to open task file.\nError: %1")).arg(f.errorString()));
+                QApplication::restoreOverrideCursor();
                 return false;
         }
@@ -163 +165 @@
                 f.close();
                 QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Load"),tr("Unable to load task:") + "\n" + tr("Unknown file format or file is corrupted."),QMessageBox::Ok).exec();
+                QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Load"), tr("Unable to load task:") + "\n" + tr("Unknown file format or file is corrupted."));
+                QApplication::restoreOverrideCursor();
                 return false;
         }
@@ -232 +236 @@
         if (!f.open(QIODevice::WriteOnly)) {
                 QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Save"),QString(tr("Unable to create task file.\nError: %1\nMaybe, file is read-only?")).arg(f.errorString()),QMessageBox::Ok).exec();
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), QString(tr("Unable to create task file.\nError: %1\nMaybe, file is read-only?")).arg(f.errorString()));
+                f.remove();
                 return false;
         }
@@ -238 +243 @@
         ds.setVersion(QDataStream::Qt_4_4);
         if (f.error() != QFile::NoError) {
-                f.close();
-                QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Save"),tr("Unable to save task.\nError: %1").arg(f.errorString()),QMessageBox::Ok).exec();
+                QApplication::restoreOverrideCursor();
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), tr("Unable to save task.\nError: %1").arg(f.errorString()));
+                f.close();
+                f.remove();
                 return false;
         }
@@ -246 +252 @@
         ds << TSPT;
         if (f.error() != QFile::NoError) {
-                f.close();
-                QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Save"),tr("Unable to save task.\nError: %1").arg(f.errorString()),QMessageBox::Ok).exec();
+                QApplication::restoreOverrideCursor();
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), tr("Unable to save task.\nError: %1").arg(f.errorString()));
+                f.close();
+                f.remove();
                 return false;
         }
@@ -254 +261 @@
         ds << TSPT_VERSION;
         if (f.error() != QFile::NoError) {
-                f.close();
-                QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Save"),tr("Unable to save task.\nError: %1").arg(f.errorString()),QMessageBox::Ok).exec();
+                QApplication::restoreOverrideCursor();
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), tr("Unable to save task.\nError: %1").arg(f.errorString()));
+                f.close();
+                f.remove();
                 return false;
         }
@@ -262 +270 @@
         ds << TSPT_META_VERSION;
         if (f.error() != QFile::NoError) {
-                f.close();
-                QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Save"),tr("Unable to save task.\nError: %1").arg(f.errorString()),QMessageBox::Ok).exec();
+                QApplication::restoreOverrideCursor();
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), tr("Unable to save task.\nError: %1").arg(f.errorString()));
+                f.close();
+                f.remove();
                 return false;
         }
@@ -270 +279 @@
         ds << OSID;
         if (f.error() != QFile::NoError) {
-                f.close();
-                QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Save"),tr("Unable to save task.\nError: %1").arg(f.errorString()),QMessageBox::Ok).exec();
+                QApplication::restoreOverrideCursor();
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), tr("Unable to save task.\nError: %1").arg(f.errorString()));
+                f.close();
+                f.remove();
                 return false;
         }
@@ -278 +288 @@
         ds << nCities;
         if (f.error() != QFile::NoError) {
-                f.close();
-                QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Save"),tr("Unable to save task.\nError: %1").arg(f.errorString()),QMessageBox::Ok).exec();
+                QApplication::restoreOverrideCursor();
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), tr("Unable to save task.\nError: %1").arg(f.errorString()));
+                f.close();
+                f.remove();
                 return false;
         }
@@ -289 +300 @@
                                 ds << static_cast<double>(table[r][c]); // We cast to double because double may be float on some platforms and we store double values in file
                                 if (f.error() != QFile::NoError) {
+                                        QApplication::restoreOverrideCursor();
+                                        QMessageBox::critical(QApplication::activeWindow(), tr("Task Save"), tr("Unable to save task.\nError: %1").arg(f.errorString()));
                                         f.close();
-                                        QApplication::restoreOverrideCursor();
-                                        QMessageBox(QMessageBox::Critical,tr("Task Save"),tr("Unable to save task.\nError: %1").arg(f.errorString()),QMessageBox::Ok).exec();
+                                        f.remove();
                                         return false;
                                 }
@@ -369 +381 @@
                 err = tr("Unknown error.");
         QApplication::restoreOverrideCursor();
-        QMessageBox(QMessageBox::Critical,tr("Task Load"),tr("Unable to load task:") + "\n" + err,QMessageBox::Ok).exec();
+        QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+        QMessageBox::critical(QApplication::activeWindow(), tr("Task Load"), tr("Unable to load task:") + "\n" + err);
+        QApplication::restoreOverrideCursor();
         return true;
 }
@@ -386 +400 @@
         if (version > TSPT_VERSION) {
                 QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Load"),tr("Unable to load task:") + "\n" + tr("File version is newer than application supports.\nPlease, try to update application."),QMessageBox::Ok).exec();
+                QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Load"), tr("Unable to load task:") + "\n" + tr("File version is newer than application supports.\nPlease, try to update application."));
+                QApplication::restoreOverrideCursor();
                 return false;
         }
@@ -400 +416 @@
         if ((size < 3) || (size > MAX_NUM_CITIES)) {
                 QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Load"),tr("Unable to load task:") + "\n" + tr("Unexpected data read.\nFile is possibly corrupted."),QMessageBox::Ok).exec();
+                QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Load"), tr("Unable to load task:") + "\n" + tr("Unexpected data read.\nFile is possibly corrupted."));
+                QApplication::restoreOverrideCursor();
                 return false;
         }
@@ -438 +456 @@
         if (version > ZKT_VERSION) {
                 QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Load"),tr("Unable to load task:") + "\n" + tr("File version is newer than application supports.\nPlease, try to update application."),QMessageBox::Ok).exec();
+                QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Load"), tr("Unable to load task:") + "\n" + tr("File version is newer than application supports.\nPlease, try to update application."));
+                QApplication::restoreOverrideCursor();
                 return false;
         }
@@ -448 +468 @@
         if ((size < 3) || (size > 5)) {
                 QApplication::restoreOverrideCursor();
-                QMessageBox(QMessageBox::Critical,tr("Task Load"),tr("Unable to load task:") + "\n" + tr("Unexpected data read.\nFile is possibly corrupted."),QMessageBox::Ok).exec();
+                QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+                QMessageBox::critical(QApplication::activeWindow(), tr("Task Load"), tr("Unable to load task:") + "\n" + tr("Unexpected data read.\nFile is possibly corrupted."));
+                QApplication::restoreOverrideCursor();
                 return false;
         }

src/tspsolver.cpp

@@ -24 +24 @@
 #include "tspsolver.h"
 
-//! Class constructor
-CTSPSolver::CTSPSolver()
-        : nCities(0), root(NULL)
-{
+//! \internal \brief A short for maximum double, used internally in the solution algorithm.
+#define MAX_DOUBLE std::numeric_limits<double>::max()
+
+/*!
+ * \brief Returns CTSPSolver's version ID.
+ * \return A string: <b>\$Id$</b>.
+ */
+QString CTSPSolver::getVersionId()
+{
+        return QString("$Id$");
+}
+
+/*!
+ * \brief Constructs CTSPSolver object.
+ * \param parent A parent object.
+ */
+CTSPSolver::CTSPSolver(QObject *parent)
+        : QObject(parent), nCities(0), root(NULL) {}
+
+/*!
+ * \brief Cleans up the object and frees up memory used by the solution tree.
+ * \param processEvents If set to \c true then \link QCoreApplication::processEvents() QApplication::processEvents(QEventLoop::ExcludeUserInputEvents)\endlink will be called from time to time while cleaning up.
+ * \warning After call to this function a solution tree returned by the solve() function is no longer valid.
+ * \note It is not required to call this function manually. This function is always called by solve() at the beginning of the solution process.
+ *
+ * \sa solve()
+ */
+void CTSPSolver::cleanup(bool processEvents)
+{
+        if (!processEvents)
+                QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+        route.clear();
+        mayNotBeOptimal = false;
+        if (root != NULL)
+                deleteTree(root, processEvents);
+        if (!processEvents)
+                QApplication::restoreOverrideCursor();
 }
 
@@ -51 +84 @@
 
 /*!
- * \brief Returns CTSPSolver's version ID.
- * \return A string: <b>\$Id$</b>.
- */
-QString CTSPSolver::getVersionId()
-{
-        return QString("$Id$");
-}
-
-/*!
- * \brief Returns whether or not the solution is definitely optimal.
- * \return \c true if solution is definitely optimal, otherwise \c false.
- *
- *  The solution may need some further interations to determine whether it is optimal.
+ * \brief Indicates whether or not the solution is definitely optimal.
+ * \return \c true if the solution is definitely optimal, otherwise \c false.
+ *
+ *  The solution may need some further iterations to determine whether or not it is optimal.
  *  In such cases this function returns \c false.
  */
@@ -75 +99 @@
  * \param numCities Number of cities in the task.
  * \param task The matrix of city-to-city travel costs.
- * \param parent The parent widget for displaying messages and dialogs.
  * \return Pointer to the root of the solution tree.
  *
  * \todo TODO: Comment the algorithm.
  */
-SStep *CTSPSolver::solve(int numCities, TMatrix task, QWidget *parent)
+SStep *CTSPSolver::solve(int numCities, const TMatrix &task)
 {
         if (numCities <= 1)
                 return NULL;
+
+QMutexLocker locker(&mutex);
         cleanup();
+        canceled = false;
+        locker.unlock();
+
         nCities = numCities;
-QProgressDialog pd(parent);
-QProgressBar *pb = new QProgressBar(&pd);
-        pb->setAlignment(Qt::AlignCenter);
-        pb->setFormat(tr("%v of %m parts found"));
-        pd.setBar(pb);
-        pd.setMaximum(nCities);
-        pd.setMinimumDuration(1000);
-        pd.setLabelText(tr("Calculating optimal route..."));
-        pd.setWindowTitle(tr("Solution Progress"));
-        pd.setWindowModality(Qt::ApplicationModal);
-        pd.setValue(0);
 
 SStep *step = new SStep();
         step->matrix = task;
+        // We need to distinguish the values forbidden by the user
+        // from the values forbidden by the algorithm.
+        // So we replace user's infinities by the maximum available double value.
+        normalize(step->matrix);
+#ifdef DEBUG
+        qDebug() << step->matrix;
+#endif // DEBUG
         step->price = align(step->matrix);
         root = step;
@@ -108 +132 @@
 double check = INFINITY;
         while (this->route.size() < nCities) {
-//              forbidden.clear();
                 step->alts = findCandidate(step->matrix,nRow,nCol);
+
                 while (hasSubCycles(nRow,nCol)) {
-//                      forbidden[nRow] = nCol;
+#ifdef DEBUG
+                        qDebug() << "Forbidden: (" << nRow << ";" << nCol << ")";
+#endif // DEBUG
                         step->matrix[nRow][nCol] = INFINITY;
                         step->price += align(step->matrix);
                         step->alts = findCandidate(step->matrix,nRow,nCol);
                 }
-                if ((nRow == -1) || (nCol == -1) || pd.wasCanceled()) {
+
+#ifdef DEBUG
+                qDebug() /*<< step->matrix*/ << "Selected: (" << nRow << ";" << nCol << ")";
+                qDebug() << "Alternate:" << step->alts;
+                qDebug() << "Step price:" << step->price << endl;
+#endif // DEBUG
+
+                locker.relock();
+                if ((nRow == -1) || (nCol == -1) || canceled) {
                         cleanup();
-                        break;
-                }
+                        return NULL;
+                }
+                locker.unlock();
 
                 // Route with (nRow,nCol) path
@@ -132 +167 @@
                 }
                 right->price = step->price + align(right->matrix);
-                // Forbid selected route to exclude its reuse in next steps.
+                // Forbid the selected route to exclude its reuse in next steps.
                 right->matrix[nCol][nRow] = INFINITY;
                 right->matrix[nRow][nCol] = INFINITY;
@@ -148 +183 @@
                 step->prNode = right;
 
+                // This matrix is not used anymore. Restoring infinities back.
+                denormalize(step->matrix);
+
                 if (right->price <= left->price) {
                         // Route with (nRow,nCol) path is cheaper
                         step = right;
                         this->route[nRow] = nCol;
-                        pd.setValue(this->route.size());
+                        emit routePartFound(this->route.size());
                         if (firstStep) {
                                 check = left->price;
@@ -168 +206 @@
         }
 
-        if (!root && !pd.wasCanceled()) {
-                pd.reset();
-                QMessageBox(QMessageBox::Warning,tr("Solution Result"),tr("Unable to find solution.\nMaybe, this task has no solutions."),QMessageBox::Ok,parent).exec();
-        }
-
-        qApp->processEvents();
-
-        if (root) {
-                route = this->route;
-                mayNotBeOptimal = (check < step->price);
-        }
+        route = this->route;
+        mayNotBeOptimal = (check < step->price);
+
         return root;
+}
+
+/*!
+ * \brief Indicates whether or not the solution process was canceled.
+ * \return \c true if the solution process was canceled, otherwise \c false.
+ */
+bool CTSPSolver::wasCanceled() const
+{
+QMutexLocker locker(&mutex);
+        return canceled;
+}
+
+/*!
+ * \brief Cancels the solution process.
+ */
+void CTSPSolver::cancel()
+{
+QMutexLocker locker(&mutex);
+        canceled = true;
 }
 
@@ -198 +247 @@
                 if (min > 0) {
                         r += min;
-                        subRow(matrix,k,min);
+                        if (min < MAX_DOUBLE)
+                                subRow(matrix,k,min);
                 }
         }
@@ -205 +255 @@
                 if (min > 0) {
                         r += min;
-                        subCol(matrix,k,min);
+                        if (min < MAX_DOUBLE)
+                                subCol(matrix,k,min);
                 }
         }
@@ -211 +262 @@
 }
 
-void CTSPSolver::cleanup()
-{
-        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
-        route.clear();
-        mayNotBeOptimal = false;
-        if (root != NULL)
-                deleteTree(root);
-        QApplication::restoreOverrideCursor();
-}
-
-void CTSPSolver::deleteTree(SStep *&root)
+void CTSPSolver::deleteTree(SStep *&root, bool processEvents)
 {
         if (root == NULL)
@@ -228 +269 @@
 SStep *parent;
         forever {
+                if (processEvents)
+                        QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
                 if (step->plNode != NULL) {
                         // We have left child node - going inside it
@@ -252 +295 @@
                 }
         }
+}
+
+void CTSPSolver::denormalize(TMatrix &matrix) const
+{
+        for (int r = 0; r < nCities; r++)
+                for (int c = 0; c < nCities; c++)
+                        if ((r != c) && (matrix.at(r).at(c) == MAX_DOUBLE))
+                                matrix[r][c] = INFINITY;
 }
 
@@ -287 +338 @@
                 if ((k != exr) && (min > matrix.at(k).at(nCol)))
                         min = matrix.at(k).at(nCol);
-        return min == INFINITY ? 0 : min;
+        return (min == INFINITY) ? 0 : min;
 }
 
@@ -293 +344 @@
 {
 double min = INFINITY;
-        for (int k = 0; k < nCities; k++)
+        for (int k = 0; k < nCities; k++) {
                 if (((k != exc)) && (min > matrix.at(nRow).at(k)))
                         min = matrix.at(nRow).at(k);
-        return min == INFINITY ? 0 : min;
+        }
+        return (min == INFINITY) ? 0 : min;
 }
 
@@ -313 +365 @@
 }
 
+void CTSPSolver::normalize(TMatrix &matrix) const
+{
+        for (int r = 0; r < nCities; r++)
+                for (int c = 0; c < nCities; c++)
+                        if ((r != c) && (matrix.at(r).at(c) == INFINITY))
+                                matrix[r][c] = MAX_DOUBLE;
+}
+
 void CTSPSolver::subCol(TMatrix &matrix, int nCol, double val)
 {
@@ -327 +387 @@
 }
 
+#ifdef DEBUG
 QDebug operator<<(QDebug dbg, const TMatrix &matrix)
 {
         for (int r = 0; r < matrix.count(); r++) {
                 for (int c = 0; c < matrix.at(r).count(); c++)
-                        dbg.space() << matrix.at(r).at(c);
+                        dbg.space() << QString::number(matrix.at(r).at(c)).leftJustified(5);
                 dbg << endl;
         }
         return dbg;
 }
+
+QDebug operator<<(QDebug dbg, const SCandidate &cand)
+{
+        dbg.nospace() << "(" << cand.nRow << ";" << cand.nCol << ")";
+        return dbg;
+}
+#endif // DEBUG

src/tspsolver.h

@@ -78 +78 @@
  * \author Copyright &copy; 2007-2010 Lёppa <contacts[at]oleksii[dot]name>
  */
-class CTSPSolver
+class CTSPSolver: public QObject
 {
-        Q_DECLARE_TR_FUNCTIONS(CTSPSolver)
+        Q_OBJECT
 
 public:
-        CTSPSolver();
+        static QString getVersionId();
+
+        CTSPSolver(QObject *parent = NULL);
+        void cleanup(bool processEvents = false);
         QString getSortedPath() const;
-        static QString getVersionId();
         bool isOptimal() const;
-        SStep *solve(int numCities, TMatrix task, QWidget *parent = 0);
+        SStep *solve(int numCities, const TMatrix &task);
+        bool wasCanceled() const;
         ~CTSPSolver();
 
+public slots:
+        void cancel();
+
+signals:
+        /*!
+         * \brief This signal is emitted once every time a part of the route is found.
+         * \param n Indicates the number of the route parts found.
+         */
+        void routePartFound(int n);
+
 private:
-        bool mayNotBeOptimal;
+        bool mayNotBeOptimal, canceled;
         int nCities;
         SStep *root;
         QHash<int,int> route;
-//      QHash<int,int> forbidden;
+        mutable QMutex mutex;
 
         double align(TMatrix &matrix);
-        void cleanup();
-        void deleteTree(SStep *&root);
+        void deleteTree(SStep *&root, bool processEvents = false);
+        void denormalize(TMatrix &matrix) const;
         QList<SCandidate> findCandidate(const TMatrix &matrix, int &nRow, int &nCol) const;
         double findMinInCol(int nCol, const TMatrix &matrix, int exr = -1) const;
         double findMinInRow(int nRow, const TMatrix &matrix, int exc = -1) const;
         bool hasSubCycles(int nRow, int nCol) const;
+        void normalize(TMatrix &matrix) const;
         void subCol(TMatrix &matrix, int nCol, double val);
         void subRow(TMatrix &matrix, int nRow, double val);
@@ -110 +124 @@
 #ifdef DEBUG
 QDebug operator<<(QDebug dbg, const TMatrix &matrix);
-#endif
+QDebug operator<<(QDebug dbg, const SCandidate &candidate);
+#endif // DEBUG
 
 #endif // TSPSOLVER_H