source: tspsg/src/mainwindow.cpp @ 6221a58c7c

readme
Last change on this file since 6221a58c7c was 2a5e50e0a9, checked in by Oleksii Serdiuk, 11 years ago

[BB10] Use native file pickers.

Also, use "/accounts/1000/shared" folder as default in open/save dialogs.

Cherry-picks from:
c039ebbe827ae1ba92ae89b2e9caef549a96547c
2512bd5a48d086ea03092bc4bdb368c58fc82854
  • Property mode set to 100644
File size: 81.8 KB
Line 
1/*
2 *  TSPSG: TSP Solver and Generator
3 *  Copyright (C) 2007-2013 Oleksii Serdiuk <contacts[at]oleksii[dot]name>
4 *
5 *  $Id: $Format:%h %ai %an$ $
6 *  $URL: http://tspsg.info/ $
7 *
8 *  This file is part of TSPSG.
9 *
10 *  TSPSG is free software: you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License as published by
12 *  the Free Software Foundation, either version 2 of the License, or
13 *  (at your option) any later version.
14 *
15 *  TSPSG is distributed in the hope that it will be useful,
16 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 *  GNU General Public License for more details.
19 *
20 *  You should have received a copy of the GNU General Public License
21 *  along with TSPSG.  If not, see <http://www.gnu.org/licenses/>.
22 */
23
24#include "mainwindow.h"
25#include "settingsdialog.h"
26#include "tspmodel.h"
27
28#include <QBuffer>
29#include <QCloseEvent>
30#include <QDate>
31#include <QDesktopServices>
32#include <QDesktopWidget>
33#include <QFileDialog>
34#include <QImageWriter>
35#include <QLibraryInfo>
36#include <QMessageBox>
37#include <QPageSetupDialog>
38#include <QPainter>
39#include <QProgressBar>
40#include <QProgressDialog>
41#include <QSettings>
42#include <QStatusBar>
43#include <QStyleFactory>
44#include <QTextCodec>
45#include <QTextDocumentWriter>
46#include <QTextBrowser>
47#include <QTextStream>
48#include <QTextTable>
49#include <QTranslator>
50
51#ifdef Q_OS_WINCE_WM
52#   include <QScrollArea>
53#endif
54
55#ifndef QT_NO_PRINTER
56#   include <QPrinter>
57#   include <QPrintDialog>
58#   include <QPrintPreviewDialog>
59#endif
60
61#if !defined(NOSVG)
62#   include <QSvgGenerator>
63#endif // NOSVG
64
65#include <QtConcurrentRun>
66
67#include "os.h"
68
69#ifndef HANDHELD
70#   include "qttoolbardialog.h"
71    // Eyecandy
72#   include "qtwin.h"
73#endif // HANDHELD
74
75#ifndef QT_NO_PRINTER
76    Q_DECLARE_METATYPE(QPrinter::PageSize)
77    Q_DECLARE_METATYPE(QPrinter::Orientation)
78#endif
79
80#ifdef Q_OS_WIN32
81#   include "shobjidl.h"
82#endif
83
84#ifdef Q_OS_BLACKBERRY
85#   include <bb/ApplicationSupport>
86#   include <bb/cascades/pickers/FilePicker>
87using namespace bb::cascades::pickers;
88#endif
89
90#ifdef _T_T_L_
91#include "_.h"
92_C_ _R_ _Y_ _P_ _T_
93#endif
94
95// BEGIN HELPER FUNCTIONS
96/*!
97 * \brief Checks whether \a x contains an integer value.
98 * \param x A value to check.
99 * \return \c true if \a x countains an integer, oherwise \c false.
100 */
101inline bool isInteger(double x)
102{
103double i;
104#ifdef Q_OS_BLACKBERRY
105    return (std::modf(x, &i) == 0.0);
106#else
107    return (modf(x, &i) == 0.0);
108#endif
109}
110
111/*!
112 * \brief Converts \a in into Base64 format with lines wrapped at 64 characters.
113 * \param in A byte array to be converted.
114 * \return Converted byte array.
115 */
116inline QByteArray toWrappedBase64(const QByteArray &in)
117{
118    QByteArray out, base64(in.toBase64());
119    for (int i = 0; i <= base64.size() - 64; i += 64) {
120        out.append(QByteArray::fromRawData(base64.data() + i, 64)).append('\n');
121    }
122    if (int rest = base64.size() % 64)
123        out.append(QByteArray::fromRawData(base64.data() + base64.size() - rest, rest));
124    return out;
125}
126// END HELPER FUNCTIONS
127
128/*!
129 * \brief Class constructor.
130 * \param parent Main Window parent widget.
131 *
132 *  Initializes Main Window and creates its layout based on target OS.
133 *  Loads TSPSG settings and opens a task file if it was specified as a commandline parameter.
134 */
135MainWindow::MainWindow(QWidget *parent)
136    : QMainWindow(parent)
137{
138    settings = initSettings(this);
139
140    // Sanity check
141    int m = settings->value("Tweaks/MaxNumCities", MAX_NUM_CITIES).toInt();
142    if (m < 3)
143        settings->setValue("Tweaks/MaxNumCities", 3);
144
145    if (settings->contains("Style")) {
146QStyle *s = QStyleFactory::create(settings->value("Style").toString());
147        if (s != NULL)
148            QApplication::setStyle(s);
149        else
150            settings->remove("Style");
151    }
152
153    loadLanguage();
154    setupUi();
155    setAcceptDrops(true);
156
157#ifdef Q_OS_BLACKBERRY
158    taskView->setEditTriggers(QAbstractItemView::AllEditTriggers);
159#endif
160
161    initDocStyleSheet();
162
163#ifndef QT_NO_PRINTER
164    printer = new QPrinter(QPrinter::HighResolution);
165    settings->beginGroup("Printer");
166QPrinter::PaperSize size = qvariant_cast<QPrinter::PaperSize>(settings->value("PaperSize", DEF_PAGE_SIZE));
167    if (size != QPrinter::Custom) {
168        printer->setPaperSize(size);
169    } else {
170        printer->setPaperSize(QSizeF(settings->value("PaperWidth").toReal(), settings->value("PaperHeight").toReal()),
171                              QPrinter::Millimeter);
172    }
173
174    printer->setOrientation(qvariant_cast<QPrinter::Orientation>(settings->value("PageOrientation", DEF_PAGE_ORIENTATION)));
175    printer->setPageMargins(
176        settings->value("MarginLeft", DEF_MARGIN_LEFT).toReal(),
177        settings->value("MarginTop", DEF_MARGIN_TOP).toReal(),
178        settings->value("MarginRight", DEF_MARGIN_RIGHT).toReal(),
179        settings->value("MarginBottom", DEF_MARGIN_BOTTOM).toReal(),
180        QPrinter::Millimeter);
181    settings->endGroup();
182#endif // QT_NO_PRINTER
183
184#ifdef Q_OS_WINCE_WM
185    currentGeometry = QApplication::desktop()->availableGeometry(0);
186    // We need to react to SIP show/hide and resize the window appropriately
187    connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), SLOT(desktopResized(int)));
188#endif // Q_OS_WINCE_WM
189    connect(actionFileNew, SIGNAL(triggered()), SLOT(actionFileNewTriggered()));
190    connect(actionFileOpen, SIGNAL(triggered()), SLOT(actionFileOpenTriggered()));
191    connect(actionFileSave, SIGNAL(triggered()), SLOT(actionFileSaveTriggered()));
192    connect(actionFileSaveAsTask, SIGNAL(triggered()), SLOT(actionFileSaveAsTaskTriggered()));
193    connect(actionFileSaveAsSolution, SIGNAL(triggered()), SLOT(actionFileSaveAsSolutionTriggered()));
194#ifndef QT_NO_PRINTDIALOG
195    connect(actionFilePrintPreview, SIGNAL(triggered()), SLOT(actionFilePrintPreviewTriggered()));
196    connect(actionFilePageSetup, SIGNAL(triggered()), SLOT(actionFilePageSetupTriggered()));
197    connect(actionFilePrint, SIGNAL(triggered()), SLOT(actionFilePrintTriggered()));
198#endif // QT_NO_PRINTER
199#ifndef HANDHELD
200    connect(actionSettingsToolbarsConfigure, SIGNAL(triggered()), SLOT(actionSettingsToolbarsConfigureTriggered()));
201#endif // HANDHELD
202    connect(actionSettingsPreferences, SIGNAL(triggered()), SLOT(actionSettingsPreferencesTriggered()));
203    if (actionHelpCheck4Updates != NULL)
204        connect(actionHelpCheck4Updates, SIGNAL(triggered()), SLOT(actionHelpCheck4UpdatesTriggered()));
205    connect(actionSettingsLanguageAutodetect, SIGNAL(triggered(bool)), SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
206    connect(groupSettingsLanguageList, SIGNAL(triggered(QAction *)), SLOT(groupSettingsLanguageListTriggered(QAction *)));
207    connect(actionSettingsStyleSystem, SIGNAL(triggered(bool)), SLOT(actionSettingsStyleSystemTriggered(bool)));
208    connect(groupSettingsStyleList, SIGNAL(triggered(QAction*)), SLOT(groupSettingsStyleListTriggered(QAction*)));
209    connect(actionHelpOnlineSupport, SIGNAL(triggered()), SLOT(actionHelpOnlineSupportTriggered()));
210    connect(actionHelpReportBug, SIGNAL(triggered()), SLOT(actionHelpReportBugTriggered()));
211    connect(actionHelpAboutQt, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
212    connect(actionHelpAbout, SIGNAL(triggered()), SLOT(actionHelpAboutTriggered()));
213
214    connect(buttonSolve, SIGNAL(clicked()), SLOT(buttonSolveClicked()));
215    connect(buttonRandom, SIGNAL(clicked()), SLOT(buttonRandomClicked()));
216    connect(buttonBackToTask, SIGNAL(clicked()), SLOT(buttonBackToTaskClicked()));
217    connect(spinCities, SIGNAL(valueChanged(int)), SLOT(spinCitiesValueChanged(int)));
218
219#ifndef HANDHELD
220    // Centering main window
221QRect rect = geometry();
222    rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
223    setGeometry(rect);
224    if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
225        // Loading of saved window state
226        settings->beginGroup("MainWindow");
227        restoreGeometry(settings->value("Geometry").toByteArray());
228        restoreState(settings->value("State").toByteArray());
229        settings->endGroup();
230    }
231#endif // HANDHELD
232
233    tspmodel = new CTSPModel(this);
234    taskView->setModel(tspmodel);
235    connect(tspmodel, SIGNAL(numCitiesChanged(int)), SLOT(numCitiesChanged(int)));
236    connect(tspmodel, SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)), SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
237    connect(tspmodel, SIGNAL(layoutChanged()), SLOT(dataChanged()));
238    if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
239        setFileName(QCoreApplication::arguments().at(1));
240    else {
241        setFileName();
242        spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
243        spinCitiesValueChanged(spinCities->value());
244    }
245    setWindowModified(false);
246
247    if (actionHelpCheck4Updates != NULL) {
248        if (!settings->contains("Check4Updates/Enabled")) {
249            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
250            settings->setValue("Check4Updates/Enabled",
251                QMessageBox::question(this, QCoreApplication::applicationName(),
252                    tr("Would you like %1 to automatically check for updates every %n day(s)?", "", settings->value("Check4Updates/Interval", DEF_UPDATE_CHECK_INTERVAL).toInt()).arg(QCoreApplication::applicationName()),
253                    QMessageBox::Yes | QMessageBox::No
254                ) == QMessageBox::Yes
255            );
256            QApplication::restoreOverrideCursor();
257        }
258        if ((settings->value("Check4Updates/Enabled", DEF_CHECK_FOR_UPDATES).toBool())
259            && (QDate(qvariant_cast<QDate>(settings->value("Check4Updates/LastAttempt"))).daysTo(QDate::currentDate()) >= settings->value("Check4Updates/Interval", DEF_UPDATE_CHECK_INTERVAL).toInt())) {
260            check4Updates(true);
261        }
262    }
263}
264
265MainWindow::~MainWindow()
266{
267#ifndef QT_NO_PRINTER
268    delete printer;
269#endif
270}
271
272#ifdef Q_OS_BLACKBERRY
273void MainWindow::setWindowModified(bool modified)
274{
275    QMainWindow::setWindowModified(modified);
276    bb::ApplicationSupport app;
277    if (modified)
278        app.setClosePrompt(tr("Unsaved Changes"), tr("The task has unsaved changes. Would you really like to close the application?"));
279    else
280        app.clearClosePrompt();
281}
282#endif
283
284/* Privates **********************************************************/
285
286void MainWindow::actionFileNewTriggered()
287{
288    if (!maybeSave())
289        return;
290    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
291    tspmodel->clear();
292    setFileName();
293    setWindowModified(false);
294    tabWidget->setCurrentIndex(0);
295    solutionText->clear();
296    graph = QPicture();
297    toggleSolutionActions(false);
298    QApplication::restoreOverrideCursor();
299}
300
301void MainWindow::actionFileOpenTriggered()
302{
303    if (!maybeSave())
304        return;
305
306    QStringList filters;
307#ifdef Q_OS_BLACKBERRY
308    filters << "*.tspt" << "*.zkt";
309#else
310    filters.append(tr("All Supported Formats") + " (*.tspt *.zkt)");
311    filters.append(tr("%1 Task Files").arg("TSPSG") + " (*.tspt)");
312    filters.append(tr("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
313    filters.append(tr("All Files") + " (*)");
314#endif
315
316QString file;
317    if ((fileName == tr("Untitled") + ".tspt") && settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
318#ifdef Q_OS_BLACKBERRY
319        file = settings->value(OS"/LastUsed/TaskLoadPath", "/accounts/1000/shared/documents").toString();
320#else
321        file = settings->value(OS"/LastUsed/TaskLoadPath").toString();
322#endif
323    else
324        file = QFileInfo(fileName).path();
325#ifdef Q_OS_BLACKBERRY
326    FilePicker fd;
327    fd.setType(FileType::Document | FileType::Other);
328    fd.setDefaultType(FileType::Document);
329    fd.setTitle(tr("Task Load"));
330    fd.setFilter(filters);
331    fd.setDirectories(QStringList(file));
332    fd.open();
333
334    QEventLoop loop;
335    connect(&fd, SIGNAL(pickerClosed()), &loop, SLOT(quit()));
336    loop.exec();
337
338    if (fd.selectedFiles().count() < 1)
339        return;
340    file = fd.selectedFiles().at(0);
341    if (!QFileInfo(file).isFile())
342        return;
343#else
344    QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
345    file = QFileDialog::getOpenFileName(this, tr("Task Load"), file, filters.join(";;"), NULL, opts);
346    if (file.isEmpty() || !QFileInfo(file).isFile())
347        return;
348#endif
349    if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
350        settings->setValue(OS"/LastUsed/TaskLoadPath", QFileInfo(file).path());
351
352    if (!tspmodel->loadTask(file))
353        return;
354    setFileName(file);
355    tabWidget->setCurrentIndex(0);
356    setWindowModified(false);
357    solutionText->clear();
358    toggleSolutionActions(false);
359}
360
361bool MainWindow::actionFileSaveTriggered()
362{
363    if ((fileName == tr("Untitled") + ".tspt") || !fileName.endsWith(".tspt", Qt::CaseInsensitive))
364        return saveTask();
365    else
366        if (tspmodel->saveTask(fileName)) {
367            setWindowModified(false);
368            return true;
369        } else
370            return false;
371}
372
373void MainWindow::actionFileSaveAsTaskTriggered()
374{
375    saveTask();
376}
377
378void MainWindow::actionFileSaveAsSolutionTriggered()
379{
380static QString selectedFile;
381    if (selectedFile.isEmpty()) {
382        if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool()) {
383#ifdef Q_OS_BLACKBERRY
384            selectedFile = settings->value(OS"/LastUsed/SolutionSavePath", "/accounts/1000/shared/documents").toString();
385#else
386            selectedFile = settings->value(OS"/LastUsed/SolutionSavePath").toString();
387#endif
388        }
389    } else
390        selectedFile = QFileInfo(selectedFile).path();
391    if (!selectedFile.isEmpty())
392        selectedFile.append("/");
393    if (fileName == tr("Untitled") + ".tspt") {
394#ifndef QT_NO_PRINTER
395        selectedFile += "solution.pdf";
396#else
397        selectedFile += "solution.html";
398#endif // QT_NO_PRINTER
399    } else {
400#ifndef QT_NO_PRINTER
401        selectedFile += QFileInfo(fileName).completeBaseName() + ".pdf";
402#else
403        selectedFile += QFileInfo(fileName).completeBaseName() + ".html";
404#endif // QT_NO_PRINTER
405    }
406
407QStringList filters;
408#ifdef Q_OS_BLACKBERRY
409    filters << "*.pdf" << "*.html" << "*.htm" << "*.odf";
410#else
411#ifndef QT_NO_PRINTER
412    filters.append(tr("PDF Files") + " (*.pdf)");
413#endif
414    filters.append(tr("HTML Files") + " (*.html *.htm)");
415    filters.append(tr("Web Archive Files") + " (*.mht *.mhtml)");
416    filters.append(tr("OpenDocument Files") + " (*.odt)");
417    filters.append(tr("All Files") + " (*)");
418#endif
419
420#ifdef Q_OS_BLACKBERRY
421    FilePicker fd;
422    fd.setMode(FilePickerMode::Saver);
423    fd.setType(FileType::Document | FileType::Other);
424    fd.setDefaultType(FileType::Document);
425    fd.setAllowOverwrite(true);
426    fd.setTitle(tr("Solution Save"));
427//    fd.setDirectories(QStringList(QFileInfo(selectedFile).path()));
428    fd.setDefaultSaveFileNames(QStringList(selectedFile));
429    fd.setFilter(filters);
430    fd.open();
431
432    QEventLoop loop;
433    connect(&fd, SIGNAL(pickerClosed()), &loop, SLOT(quit()));
434    loop.exec();
435
436    if (fd.selectedFiles().count() < 1)
437        return;
438    selectedFile = fd.selectedFiles().at(0);
439#else
440    QFileDialog::Options opts(settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog);
441    QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, opts);
442    if (file.isEmpty())
443        return;
444    selectedFile = file;
445#endif
446    if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
447        settings->setValue(OS"/LastUsed/SolutionSavePath", QFileInfo(selectedFile).path());
448    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
449#ifndef QT_NO_PRINTER
450    if (selectedFile.endsWith(".pdf", Qt::CaseInsensitive)) {
451        printer->setOutputFileName(selectedFile);
452        solutionText->document()->print(printer);
453        printer->setOutputFileName(QString());
454        QApplication::restoreOverrideCursor();
455        return;
456    }
457#endif
458    QByteArray imgdata;
459    bool mhtml = selectedFile.contains(QRegExp("\\.mht(ml)?$", Qt::CaseInsensitive));
460    bool embed = !mhtml && settings->value("Output/EmbedGraphIntoHTML", DEF_EMBED_GRAPH_INTO_HTML).toBool();
461    if (selectedFile.contains(QRegExp("\\.(html?|mht(ml)?)$", Qt::CaseInsensitive))) {
462        QFile file(selectedFile);
463        if (!file.open(QFile::WriteOnly | QFile::Text)) {
464            QApplication::restoreOverrideCursor();
465            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(file.errorString()));
466            return;
467        }
468
469        QString html = solutionText->document()->toHtml("UTF-8");
470        html.replace(QRegExp("font-family:([^;]*);"),
471                     "font-family:\\1, 'DejaVu Sans Mono', 'Courier New', Courier, monospace;");
472        html.replace(QRegExp("<style ([^>]*)>"), QString("<style \\1>\n"
473                                                         "body { color: %1 }\n"
474                                                         "td { border-style: solid; border-width: 1px; border-color: %2; }")
475                     .arg(settings->value("Output/Colors/Font", DEF_TEXT_COLOR).toString(),
476                          settings->value("Output/Colors/TableBorder", DEF_TABLE_COLOR).toString()));
477
478        QFileInfo fi(selectedFile);
479        QString format = settings->value("Output/GraphImageFormat", DEF_GRAPH_IMAGE_FORMAT).toString();
480#if !defined(NOSVG)
481        if (!QImageWriter::supportedImageFormats().contains(format.toLatin1()) && (format != "svg")) {
482#else // NOSVG
483        if (!QImageWriter::supportedImageFormats().contains(format.toLatin1())) {
484#endif // NOSVG
485            format = DEF_GRAPH_IMAGE_FORMAT;
486            settings->remove("Output/GraphImageFormat");
487        }
488
489        if (!graph.isNull()) {
490            imgdata = generateImage(format);
491            if (imgdata.isEmpty()) {
492                QApplication::restoreOverrideCursor();
493                return;
494            }
495            if (embed) {
496                QString fmt = format;
497                if (format == "svg")
498                    fmt.append("+xml");
499                html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""),
500                             QString("<img src=\"data:image/%1;base64,%2\" alt=\"%3\"")
501                             .arg(fmt, toWrappedBase64(imgdata), tr("Solution Graph")));
502            } else {
503                html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""),
504                             QString("<img src=\"%1\" alt=\"%2\"")
505                             .arg(fi.completeBaseName() + "." + format, tr("Solution Graph")));
506            }
507        }
508
509        // Saving solution text as HTML
510QTextStream ts(&file);
511        ts.setCodec(QTextCodec::codecForName("UTF-8"));
512        QString boundary = QString("------=multipart_boundary.%1").arg(qHash(selectedFile));
513        if (mhtml) {
514            ts << "Content-Type: multipart/related; start=<[email protected]>; boundary=\""
515               << boundary << "\"; type=\"text/html\"" << endl;
516            boundary.prepend("--");
517            ts << "MIME-Version: 1.0" << endl;
518            ts << endl;
519            ts << boundary << endl;
520            ts << "Content-Disposition: inline; filename=" << fi.completeBaseName() << ".html" << endl;
521            ts << "Content-Type: text/html; name=" << fi.completeBaseName() << ".html" << endl;
522            ts << "Content-ID: <[email protected]>" << endl;
523            ts << "Content-Location: " << fi.completeBaseName() << ".html" << endl;
524            ts << "Content-Transfer-Encoding: 8bit" << endl;
525            ts << endl;
526        }
527        ts << html << endl;
528        if (mhtml) {
529            ts << endl << boundary << endl;
530            ts << "Content-Disposition: inline; filename=" << fi.completeBaseName() << "." << format << endl;
531            ts << "Content-Type: image/" << format;
532            if (format == "svg")
533                ts << "+xml";
534            ts << "; name=" << fi.completeBaseName() << "." << format  << endl;
535            ts << "Content-Location: " << fi.completeBaseName() << "." << format << endl;
536            ts << "Content-Transfer-Encoding: Base64" << endl;
537            ts << endl;
538            ts << toWrappedBase64(imgdata) << endl;
539            ts << endl << boundary << "--" << endl;
540        }
541        file.close();
542        if (!embed && !mhtml) {
543            QFile img(fi.path() + "/" + fi.completeBaseName() + "." + format);
544            if (!img.open(QFile::WriteOnly)) {
545                QApplication::restoreOverrideCursor();
546                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(img.errorString()));
547                return;
548            }
549            if (img.write(imgdata) != imgdata.size()) {
550                QApplication::restoreOverrideCursor();
551                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(img.errorString()));
552            }
553            img.close();
554        }
555    } else {
556QTextDocumentWriter dw(selectedFile);
557        if (!selectedFile.endsWith(".odt",Qt::CaseInsensitive))
558            dw.setFormat("plaintext");
559        if (!dw.write(solutionText->document()))
560            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(dw.device()->errorString()));
561    }
562    QApplication::restoreOverrideCursor();
563}
564
565#ifndef QT_NO_PRINTDIALOG
566void MainWindow::actionFilePrintPreviewTriggered()
567{
568QPrintPreviewDialog ppd(printer, this);
569    connect(&ppd,SIGNAL(paintRequested(QPrinter *)),SLOT(printPreview(QPrinter *)));
570    ppd.exec();
571
572qreal l, t, r, b;
573    printer->getPageMargins(&l, &t, &r, &b, QPrinter::Millimeter);
574
575    settings->beginGroup("Printer");
576    settings->setValue("PaperSize", printer->paperSize());
577    if (printer->paperSize() == QPrinter::Custom) {
578QSizeF size(printer->paperSize(QPrinter::Millimeter));
579        settings->setValue("PaperWidth", size.width());
580        settings->setValue("PaperHeight", size.height());
581    }
582    settings->setValue("PageOrientation", printer->orientation());
583    settings->setValue("MarginLeft", l);
584    settings->setValue("MarginTop", t);
585    settings->setValue("MarginRight", r);
586    settings->setValue("MarginBottom", b);
587    settings->endGroup();
588}
589
590void MainWindow::actionFilePageSetupTriggered()
591{
592QPageSetupDialog psd(printer, this);
593    if (psd.exec() != QDialog::Accepted)
594        return;
595
596qreal l, t, r ,b;
597    printer->getPageMargins(&l, &t, &r, &b, QPrinter::Millimeter);
598
599    settings->beginGroup("Printer");
600    settings->setValue("PaperSize", printer->paperSize());
601    if (printer->paperSize() == QPrinter::Custom) {
602QSizeF size(printer->paperSize(QPrinter::Millimeter));
603        settings->setValue("PaperWidth", size.width());
604        settings->setValue("PaperHeight", size.height());
605    }
606    settings->setValue("PageOrientation", printer->orientation());
607    settings->setValue("MarginLeft", l);
608    settings->setValue("MarginTop", t);
609    settings->setValue("MarginRight", r);
610    settings->setValue("MarginBottom", b);
611    settings->endGroup();
612}
613
614void MainWindow::actionFilePrintTriggered()
615{
616QPrintDialog pd(printer,this);
617    if (pd.exec() != QDialog::Accepted)
618        return;
619    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
620    solutionText->print(printer);
621    QApplication::restoreOverrideCursor();
622}
623#endif // QT_NO_PRINTDIALOG
624
625void MainWindow::actionSettingsPreferencesTriggered()
626{
627SettingsDialog sd(this);
628#ifdef Q_OS_SYMBIAN
629    sd.setWindowState(Qt::WindowMaximized);
630#endif
631    if (sd.exec() != QDialog::Accepted)
632        return;
633    if (sd.colorChanged() || sd.fontChanged()) {
634        if (!solutionText->document()->isEmpty() && sd.colorChanged())
635            QMessageBox::information(this, tr("Settings Changed"), tr("You have changed color settings.\nThey will be applied to the next solution output."));
636        initDocStyleSheet();
637    }
638    if (sd.translucencyChanged() != 0)
639        toggleTranclucency(sd.translucencyChanged() == 1);
640}
641
642void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
643{
644    if (checked) {
645        settings->remove("Language");
646        QMessageBox::information(this, tr("Language change"), tr("Language will be autodetected on the next %1 start.").arg(QCoreApplication::applicationName()));
647    } else
648        settings->setValue("Language", groupSettingsLanguageList->checkedAction()->data().toString());
649}
650
651void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
652{
653#ifndef Q_WS_MAEMO_5
654    if (actionSettingsLanguageAutodetect->isChecked())
655        actionSettingsLanguageAutodetect->trigger();
656#endif
657bool untitled = (fileName == tr("Untitled") + ".tspt");
658    if (loadLanguage(action->data().toString())) {
659        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
660        settings->setValue("Language",action->data().toString());
661        retranslateUi();
662        if (untitled)
663            setFileName();
664#ifndef HANDHELD
665        if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool())  {
666            toggleStyle(labelVariant, true);
667            toggleStyle(labelCities, true);
668        }
669#endif
670        QApplication::restoreOverrideCursor();
671        if (!solutionText->document()->isEmpty())
672            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."));
673    }
674}
675
676void MainWindow::actionSettingsStyleSystemTriggered(bool checked)
677{
678    if (checked) {
679        settings->remove("Style");
680        QMessageBox::information(this, tr("Style Change"), tr("To apply the default style you need to restart %1.").arg(QCoreApplication::applicationName()));
681    } else {
682        settings->setValue("Style", groupSettingsStyleList->checkedAction()->text());
683    }
684}
685
686void MainWindow::groupSettingsStyleListTriggered(QAction *action)
687{
688QStyle *s = QStyleFactory::create(action->text());
689    if (s != NULL) {
690        QApplication::setStyle(s);
691        settings->setValue("Style", action->text());
692        actionSettingsStyleSystem->setChecked(false);
693    }
694}
695
696#ifndef HANDHELD
697void MainWindow::actionSettingsToolbarsConfigureTriggered()
698{
699QtToolBarDialog dlg(this);
700    dlg.setToolBarManager(toolBarManager);
701    dlg.exec();
702QToolButton *tb = static_cast<QToolButton *>(toolBarMain->widgetForAction(actionFileSave));
703    if (tb != NULL) {
704        tb->setMenu(menuFileSaveAs);
705        tb->setPopupMode(QToolButton::MenuButtonPopup);
706        tb->resize(tb->sizeHint());
707    }
708
709    loadToolbarList();
710}
711#endif // HANDHELD
712
713void MainWindow::actionHelpCheck4UpdatesTriggered()
714{
715    if (!hasUpdater()) {
716        QMessageBox::warning(this, tr("Unsupported Feature"), tr("Sorry, but this feature is not supported on your\nplatform or support for it was not installed."));
717        return;
718    }
719
720    check4Updates();
721}
722
723void MainWindow::actionHelpAboutTriggered()
724{
725    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
726
727QString title;
728    title += QString("<b>%1</b><br>").arg(QCoreApplication::applicationName());
729    title += QString("%1: <b>%2</b><br>").arg(tr("Version"), QCoreApplication::applicationVersion());
730#ifndef HANDHELD
731    title += QString("<b>&copy; 2007-%1 <a href=\"http://%2/\">%3</a></b><br>").arg(QDate::currentDate().toString("yyyy"), QCoreApplication::organizationDomain(), QCoreApplication::organizationName());
732#endif // HANDHELD
733    title += QString("<b><a href=\"http://tspsg.info/\">http://tspsg.info/</a></b>");
734
735QString about;
736    about += QString("%1: <b>%2</b><br>").arg(tr("Target OS (ARCH)"), PLATFROM);
737    about += QString("%1:<br>").arg(tr("Qt library"));
738    about += QString("&nbsp;&nbsp;&nbsp;&nbsp;%1: <b>%2</b><br>").arg(tr("Build time"), QT_VERSION_STR);
739    about += QString("&nbsp;&nbsp;&nbsp;&nbsp;%1: <b>%2</b><br>").arg(tr("Runtime"), qVersion());
740    about.append(QString("%1: <b>%2x%3</b><br>").arg(tr("Logical screen DPI")).arg(logicalDpiX()).arg(logicalDpiY()));
741QString tag;
742#ifdef REVISION_STR
743    tag = tr(" from git commit <b>%1</b>").arg(QString(REVISION_STR).left(10));
744#endif
745    about += tr("Build <b>%1</b>, built on <b>%2</b> at <b>%3</b>%5 with <b>%4</b> compiler.").arg(BUILD_NUMBER).arg(__DATE__).arg(__TIME__).arg(COMPILER).arg(tag) + "<br>";
746    about += QString("%1: <b>%2</b><br>").arg(tr("Algorithm"), TSPSolver::CTSPSolver::getVersionId());
747    about += "<br>";
748    about += tr("This program is free software: you can redistribute it and/or modify<br>\n"
749        "it under the terms of the GNU General Public License as published by<br>\n"
750        "the Free Software Foundation, either version 2 of the License, or<br>\n"
751        "(at your option) any later version.<br>\n"
752        "<br>\n"
753        "This program is distributed in the hope that it will be useful,<br>\n"
754        "but WITHOUT ANY WARRANTY; without even the implied warranty of<br>\n"
755        "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>\n"
756        "GNU General Public License for more details.<br>\n"
757        "<br>\n"
758        "You should have received a copy of the GNU General Public License<br>\n"
759        "along with TSPSG.  If not, see <a href=\"http://www.gnu.org/licenses/\">www.gnu.org/licenses/</a>.");
760
761QString credits;
762    credits += tr("%1 was created using <b>Qt&nbsp;framework</b> licensed "
763        "under the terms of the GNU Lesser General Public License,<br>\n"
764        "see <a href=\"http://qt.nokia.com/\">qt.nokia.com</a><br>\n"
765        "<br>\n"
766        "Most icons used in %1 are part of <b>Oxygen&nbsp;Icons</b> project "
767        "licensed according to the GNU Lesser General Public License,<br>\n"
768        "see <a href=\"http://www.oxygen-icons.org/\">www.oxygen-icons.org</a><br>\n"
769        "<br>\n"
770        "Country flag icons used in %1 are part of the free "
771        "<b>Flag&nbsp;Icons</b> collection created by <b>IconDrawer</b>,<br>\n"
772        "see <a href=\"http://www.icondrawer.com/\">www.icondrawer.com</a><br>\n"
773        "<br>\n"
774        "%1 comes with the default \"embedded\" font <b>DejaVu&nbsp;LGC&nbsp;Sans&nbsp;"
775        "Mono</b> from the <b>DejaVu fonts</b> licensed under a Free license</a>,<br>\n"
776        "see <a href=\"http://dejavu-fonts.org/\">dejavu-fonts.org</a>")
777            .arg("TSPSG");
778
779QFile f(":/files/COPYING");
780    f.open(QIODevice::ReadOnly);
781
782QString translation = QCoreApplication::translate("--------", "AUTHORS %1", "Please, provide translator credits here. %1 will be replaced with VERSION");
783    if ((translation != "AUTHORS %1") && (translation.contains("%1"))) {
784QString about = QCoreApplication::translate("--------", "VERSION", "Please, provide your translation version here.");
785        if (about != "VERSION")
786            translation = translation.arg(about);
787    }
788
789QDialog *dlg = new QDialog(this);
790QLabel *lblIcon = new QLabel(dlg),
791    *lblTitle = new QLabel(dlg);
792#ifdef HANDHELD
793QLabel *lblSubTitle = new QLabel(QString("<b>&copy; 2007-%1 <a href=\"http://%2/\">%3</a></b>").arg(QDate::currentDate().toString("yyyy"), QCoreApplication::organizationDomain(), QCoreApplication::organizationName()), dlg);
794#endif // HANDHELD
795QTabWidget *tabs = new QTabWidget(dlg);
796QTextBrowser *txtAbout = new QTextBrowser(dlg);
797QTextBrowser *txtLicense = new QTextBrowser(dlg);
798QTextBrowser *txtCredits = new QTextBrowser(dlg);
799QVBoxLayout *vb = new QVBoxLayout();
800QHBoxLayout *hb1 = new QHBoxLayout(),
801    *hb2 = new QHBoxLayout();
802QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok, Qt::Horizontal, dlg);
803
804    lblTitle->setOpenExternalLinks(true);
805    lblTitle->setText(title);
806    lblTitle->setAlignment(Qt::AlignTop);
807    lblTitle->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
808#ifndef HANDHELD
809    lblTitle->setStyleSheet(QString("QLabel {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 4px; padding: 1px;}").arg(palette().alternateBase().color().name(), palette().shadow().color().name()));
810#endif // HANDHELD
811
812    lblIcon->setPixmap(QPixmap(":/images/tspsg.png").scaledToHeight(lblTitle->sizeHint().height(), Qt::SmoothTransformation));
813    lblIcon->setAlignment(Qt::AlignVCenter);
814#ifndef HANDHELD
815    lblIcon->setStyleSheet(QString("QLabel {background-color: white; border-color: %1; border-width: 1px; border-style: solid; border-radius: 4px; padding: 1px;}").arg(palette().windowText().color().name()));
816#endif // HANDHELD
817
818    hb1->addWidget(lblIcon);
819    hb1->addWidget(lblTitle);
820
821    txtAbout->setWordWrapMode(QTextOption::NoWrap);
822    txtAbout->setOpenExternalLinks(true);
823    txtAbout->setHtml(about);
824    txtAbout->moveCursor(QTextCursor::Start);
825    txtAbout->setFrameShape(QFrame::NoFrame);
826#ifdef Q_OS_BLACKBERRY
827    txtAbout->setAttribute(Qt::WA_InputMethodEnabled, false);
828#endif
829
830//      txtCredits->setWordWrapMode(QTextOption::NoWrap);
831    txtCredits->setOpenExternalLinks(true);
832    txtCredits->setHtml(credits);
833    txtCredits->moveCursor(QTextCursor::Start);
834    txtCredits->setFrameShape(QFrame::NoFrame);
835#ifdef Q_OS_BLACKBERRY
836    txtCredits->setAttribute(Qt::WA_InputMethodEnabled, false);
837#endif
838
839    txtLicense->setWordWrapMode(QTextOption::NoWrap);
840    txtLicense->setOpenExternalLinks(true);
841    txtLicense->setText(f.readAll());
842    txtLicense->moveCursor(QTextCursor::Start);
843    txtLicense->setFrameShape(QFrame::NoFrame);
844#ifdef Q_OS_BLACKBERRY
845    txtLicense->setAttribute(Qt::WA_InputMethodEnabled, false);
846#endif
847
848    bb->button(QDialogButtonBox::Ok)->setCursor(QCursor(Qt::PointingHandCursor));
849    bb->button(QDialogButtonBox::Ok)->setIcon(GET_ICON("dialog-ok"));
850
851    hb2->addWidget(bb);
852
853#ifdef Q_OS_WINCE_WM
854    vb->setMargin(3);
855#endif // Q_OS_WINCE_WM
856    vb->addLayout(hb1);
857#ifdef HANDHELD
858    vb->addWidget(lblSubTitle);
859#endif // HANDHELD
860
861    tabs->addTab(txtAbout, tr("About"));
862    tabs->addTab(txtLicense, tr("License"));
863    tabs->addTab(txtCredits, tr("Credits"));
864    if (translation != "AUTHORS %1") {
865QTextBrowser *txtTranslation = new QTextBrowser(dlg);
866//              txtTranslation->setWordWrapMode(QTextOption::NoWrap);
867        txtTranslation->setOpenExternalLinks(true);
868        txtTranslation->setText(translation);
869        txtTranslation->moveCursor(QTextCursor::Start);
870        txtTranslation->setFrameShape(QFrame::NoFrame);
871
872        tabs->addTab(txtTranslation, tr("Translation"));
873    }
874#ifndef HANDHELD
875    tabs->setStyleSheet(QString("QTabWidget::pane {background-color: %1; border-color: %3; border-width: 1px; border-style: solid; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; padding: 1px;} QTabBar::tab {background-color: %2; border-color: %3; border-width: 1px; border-style: solid; border-bottom: none; border-top-left-radius: 4px; border-top-right-radius: 4px; padding: 2px 6px;} QTabBar::tab:selected {background-color: %4;} QTabBar::tab:!selected {margin-top: 1px;}").arg(palette().base().color().name(), palette().button().color().name(), palette().shadow().color().name(), palette().light().color().name()));
876#endif // HANDHELD
877
878    vb->addWidget(tabs);
879    vb->addLayout(hb2);
880
881    dlg->setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowCloseButtonHint);
882    dlg->setWindowTitle(tr("About %1").arg(QCoreApplication::applicationName()));
883    dlg->setWindowIcon(GET_ICON("help-about"));
884
885    dlg->setLayout(vb);
886
887    connect(bb, SIGNAL(accepted()), dlg, SLOT(accept()));
888
889#ifndef HANDHELD
890    // Adding some eyecandy
891    if (QtWin::isCompositionEnabled())  {
892        QtWin::enableBlurBehindWindow(dlg, true);
893    }
894#endif // HANDHELD
895
896#ifndef HANDHELD
897    dlg->resize(450, 350);
898#elif defined(Q_OS_SYMBIAN) || defined(Q_OS_BLACKBERRY)
899    dlg->setWindowState(Qt::WindowMaximized);
900#endif
901    QApplication::restoreOverrideCursor();
902
903    dlg->exec();
904
905    delete dlg;
906}
907
908void MainWindow::buttonBackToTaskClicked()
909{
910    tabWidget->setCurrentIndex(0);
911}
912
913void MainWindow::buttonRandomClicked()
914{
915    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
916    tspmodel->randomize();
917    QApplication::restoreOverrideCursor();
918}
919
920void MainWindow::buttonSolveClicked()
921{
922    TSPSolver::TMatrix matrix;
923    QList<double> row;
924    int n = spinCities->value();
925    bool ok;
926    for (int r = 0; r < n; r++) {
927        row.clear();
928        for (int c = 0; c < n; c++) {
929            row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
930            if (!ok) {
931                QMessageBox::critical(this, tr("Data error"), tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1));
932                return;
933            }
934        }
935        matrix.append(row);
936    }
937
938QProgressDialog pd(this);
939QProgressBar *pb = new QProgressBar(&pd);
940    pb->setAlignment(Qt::AlignCenter);
941    pb->setFormat(tr("%v of %1 parts found").arg(n));
942    pd.setBar(pb);
943QPushButton *cancel = new QPushButton(&pd);
944    cancel->setIcon(GET_ICON("dialog-cancel"));
945    cancel->setText(QCoreApplication::translate("QDialogButtonBox", "Cancel", "No need to translate this. The translation will be taken from Qt translation files."));
946    pd.setCancelButton(cancel);
947    pd.setMaximum(n);
948    pd.setAutoClose(false);
949    pd.setAutoReset(false);
950    pd.setLabelText(tr("Calculating optimal route..."));
951    pd.setWindowTitle(tr("Solution Progress"));
952    pd.setWindowModality(Qt::ApplicationModal);
953    pd.setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
954    pd.show();
955
956#ifdef Q_OS_WIN32
957HRESULT hr = CoCreateInstance(CLSID_TaskbarList, NULL, CLSCTX_INPROC_SERVER, IID_ITaskbarList3, (LPVOID*)&tl);
958    if (SUCCEEDED(hr)) {
959        hr = tl->HrInit();
960        if (FAILED(hr)) {
961            tl->Release();
962            tl = NULL;
963        } else {
964            tl->SetProgressValue(HWND(winId()), 0, n * 2);
965        }
966    }
967#endif
968
969    TSPSolver::CTSPSolver solver;
970    solver.setCleanupOnCancel(false);
971    connect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
972    connect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
973#ifdef Q_OS_WIN32
974    if (tl != NULL)
975        connect(&solver, SIGNAL(routePartFound(int)), SLOT(solverRoutePartFound(int)));
976#endif
977    TSPSolver::SStep *root = solver.solve(n, matrix);
978#ifdef Q_OS_WIN32
979    if (tl != NULL)
980        disconnect(&solver, SIGNAL(routePartFound(int)), this, SLOT(solverRoutePartFound(int)));
981#endif
982    disconnect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
983    disconnect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
984    if (!root) {
985        pd.reset();
986        if (!solver.wasCanceled()) {
987#ifdef Q_OS_WIN32
988            if (tl != NULL) {
989                tl->SetProgressState(HWND(winId()), TBPF_ERROR);
990            }
991#endif
992            QApplication::alert(this);
993            QMessageBox::warning(this, tr("Solution Result"), tr("Unable to find a solution.\nMaybe, this task has no solution."));
994        }
995        pd.setLabelText(tr("Memory cleanup..."));
996        pd.setMaximum(0);
997        pd.setCancelButton(NULL);
998        pd.show();
999#ifdef Q_OS_WIN32
1000        if (tl != NULL)
1001            tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
1002#endif
1003        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1004
1005#ifndef QT_NO_CONCURRENT
1006        QFuture<void> f = QtConcurrent::run(&solver, &TSPSolver::CTSPSolver::cleanup, false);
1007        while (!f.isFinished()) {
1008            QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1009        }
1010#else
1011        solver.cleanup(true);
1012#endif
1013        pd.reset();
1014#ifdef Q_OS_WIN32
1015        if (tl != NULL) {
1016            tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
1017            tl->Release();
1018            tl = NULL;
1019        }
1020#endif
1021        return;
1022    }
1023    pb->setFormat(tr("Generating header"));
1024    pd.setLabelText(tr("Generating solution output..."));
1025    pd.setMaximum(solver.getTotalSteps() + 1);
1026    pd.setValue(0);
1027
1028#ifdef Q_OS_WIN32
1029    if (tl != NULL)
1030        tl->SetProgressValue(HWND(winId()), spinCities->value(), spinCities->value() + solver.getTotalSteps() + 1);
1031#endif
1032
1033    solutionText->clear();
1034    solutionText->setDocumentTitle(tr("Solution of Variant #%1 Task").arg(spinVariant->value()));
1035
1036QPainter pic;
1037bool dograph = settings->value("Output/GenerateGraph", DEF_GENERATE_GRAPH).toBool();
1038    if (dograph) {
1039        pic.begin(&graph);
1040        pic.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
1041QFont font = qvariant_cast<QFont>(settings->value("Output/Font", QFont(DEF_FONT_FACE)));
1042        font.setStyleHint(QFont::TypeWriter);
1043        // Font size in pixels = graph node radius / 2.75.
1044        // See MainWindow::drawNode() for graph node radius calcualtion description.
1045#ifndef Q_OS_SYMBIAN
1046        font.setPixelSize(logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5 / 2.75);
1047#else
1048        // Also, see again MainWindow::drawNode() for why is additional 1.3 divider added in Symbian.
1049        font.setPixelSize(logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5 / 2.75 / 1.3);
1050#endif
1051        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
1052            font.setWeight(QFont::DemiBold);
1053            font.setPixelSize(font.pixelSize() * HQ_FACTOR);
1054        }
1055        pic.setFont(font);
1056        pic.setBrush(QBrush(QColor(Qt::white)));
1057        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
1058QPen pen = pic.pen();
1059            pen.setWidth(HQ_FACTOR);
1060            pic.setPen(pen);
1061        }
1062        pic.setBackgroundMode(Qt::OpaqueMode);
1063    } else {
1064        graph = QPicture();
1065    }
1066
1067QTextDocument *doc = solutionText->document();
1068QTextCursor cur(doc);
1069
1070    cur.beginEditBlock();
1071    cur.setBlockFormat(fmt_paragraph);
1072    cur.insertText(tr("Variant #%1 Task").arg(spinVariant->value()), fmt_default);
1073    cur.insertBlock(fmt_paragraph);
1074    cur.insertText(tr("Task:"), fmt_default);
1075    outputMatrix(cur, matrix);
1076    if (dograph) {
1077#ifdef _T_T_L_
1078        _b_ _i_ _z_ _a_ _r_ _r_ _e_
1079#endif
1080        drawNode(pic, 0);
1081    }
1082    cur.insertHtml("<hr>");
1083    cur.insertBlock(fmt_paragraph);
1084    int imgpos = cur.position();
1085    cur.insertText(tr("Variant #%1 Solution").arg(spinVariant->value()), fmt_default);
1086    cur.endEditBlock();
1087
1088    TSPSolver::SStep *step = root;
1089    int c = n = 1;
1090    pb->setFormat(tr("Generating step %v"));
1091    while ((step->next != TSPSolver::SStep::NoNextStep) && (c < spinCities->value())) {
1092        if (pd.wasCanceled()) {
1093            pd.setLabelText(tr("Memory cleanup..."));
1094            pd.setMaximum(0);
1095            pd.setCancelButton(NULL);
1096            pd.show();
1097            QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1098#ifdef Q_OS_WIN32
1099            if (tl != NULL)
1100                tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
1101#endif
1102#ifndef QT_NO_CONCURRENT
1103            QFuture<void> f = QtConcurrent::run(&solver, &TSPSolver::CTSPSolver::cleanup, false);
1104            while (!f.isFinished()) {
1105                QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1106            }
1107#else
1108            solver.cleanup(true);
1109#endif
1110            solutionText->clear();
1111            toggleSolutionActions(false);
1112#ifdef Q_OS_WIN32
1113            if (tl != NULL) {
1114                tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
1115                tl->Release();
1116                tl = NULL;
1117            }
1118#endif
1119            return;
1120        }
1121        pd.setValue(n);
1122#ifdef Q_OS_WIN32
1123        if (tl != NULL)
1124            tl->SetProgressValue(HWND(winId()), spinCities->value() + n, spinCities->value() + solver.getTotalSteps() + 1);
1125#endif
1126
1127        cur.beginEditBlock();
1128        cur.insertBlock(fmt_paragraph);
1129        cur.insertText(tr("Step #%1").arg(n), fmt_default);
1130        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())))) {
1131            outputMatrix(cur, *step);
1132        }
1133        if (step->alts.empty())
1134            cur.insertBlock(fmt_lastparagraph);
1135        else
1136            cur.insertBlock(fmt_paragraph);
1137        cur.insertText(tr("Selected route %1 %2 part.").arg((step->next == TSPSolver::SStep::RightBranch) ? tr("with") : tr("without")).arg(tr("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)), fmt_default);
1138        if (!step->alts.empty()) {
1139            TSPSolver::SStep::SCandidate cand;
1140            QString alts;
1141            foreach(cand, step->alts) {
1142                if (!alts.isEmpty())
1143                    alts += ", ";
1144                alts += tr("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
1145            }
1146            cur.insertBlock(fmt_lastparagraph);
1147            cur.insertText(tr("%n alternate candidate(s) for branching: %1.", "", step->alts.count()).arg(alts), fmt_altlist);
1148        }
1149        cur.endEditBlock();
1150
1151        if (dograph) {
1152            if (step->prNode != NULL)
1153                drawNode(pic, n, false, step->prNode);
1154            if (step->plNode != NULL)
1155                drawNode(pic, n, true, step->plNode);
1156        }
1157        n++;
1158
1159        if (step->next == TSPSolver::SStep::RightBranch) {
1160            c++;
1161            step = step->prNode;
1162        } else if (step->next == TSPSolver::SStep::LeftBranch) {
1163            step = step->plNode;
1164        } else
1165            break;
1166    }
1167    pb->setFormat(tr("Generating footer"));
1168    pd.setValue(n);
1169#ifdef Q_OS_WIN32
1170    if (tl != NULL)
1171        tl->SetProgressValue(HWND(winId()), spinCities->value() + n, spinCities->value() + solver.getTotalSteps() + 1);
1172#endif
1173
1174    cur.beginEditBlock();
1175    cur.insertBlock(fmt_paragraph);
1176    if (solver.isOptimal())
1177        cur.insertText(tr("Optimal path:"), fmt_default);
1178    else
1179        cur.insertText(tr("Resulting path:"), fmt_default);
1180
1181    cur.insertBlock(fmt_paragraph);
1182    cur.insertText("  " + solver.getSortedPath(tr("City %1")));
1183
1184    if (solver.isOptimal())
1185        cur.insertBlock(fmt_paragraph);
1186    else
1187        cur.insertBlock(fmt_lastparagraph);
1188    if (isInteger(step->price))
1189        cur.insertHtml("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
1190    else
1191        cur.insertHtml("<p>" + tr("The price is <b>%1</b> units.").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()) + "</p>");
1192    if (!solver.isOptimal()) {
1193        cur.insertBlock(fmt_paragraph);
1194        cur.insertHtml("<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>");
1195    }
1196    cur.endEditBlock();
1197
1198    if (dograph) {
1199        pic.end();
1200
1201        QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
1202        i.fill(QColor(255, 255, 255, 0).rgba());
1203        pic.begin(&i);
1204        pic.drawPicture(1, 1, graph);
1205        pic.end();
1206        doc->addResource(QTextDocument::ImageResource, QUrl("tspsg://graph.pic"), i);
1207
1208QTextImageFormat img;
1209        img.setName("tspsg://graph.pic");
1210        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
1211            img.setWidth(i.width() / HQ_FACTOR);
1212            img.setHeight(i.height() / HQ_FACTOR);
1213        } else {
1214            img.setWidth(i.width());
1215            img.setHeight(i.height());
1216        }
1217
1218        cur.setPosition(imgpos);
1219        cur.insertImage(img, QTextFrameFormat::FloatRight);
1220    }
1221
1222    if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
1223        // Scrolling to the end of the text.
1224        solutionText->moveCursor(QTextCursor::End);
1225    } else
1226        solutionText->moveCursor(QTextCursor::Start);
1227
1228    pd.setLabelText(tr("Memory cleanup..."));
1229    pd.setMaximum(0);
1230    pd.setCancelButton(NULL);
1231    QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1232#ifdef Q_OS_WIN32
1233    if (tl != NULL)
1234        tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
1235#endif
1236#ifndef QT_NO_CONCURRENT
1237    QFuture<void> f = QtConcurrent::run(&solver, &TSPSolver::CTSPSolver::cleanup, false);
1238    while (!f.isFinished()) {
1239        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1240    }
1241#else
1242    solver.cleanup(true);
1243#endif
1244    toggleSolutionActions();
1245    tabWidget->setCurrentIndex(1);
1246#ifdef Q_OS_WIN32
1247    if (tl != NULL) {
1248        tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
1249        tl->Release();
1250        tl = NULL;
1251    }
1252#endif
1253
1254    pd.reset();
1255    QApplication::alert(this, 3000);
1256}
1257
1258void MainWindow::dataChanged()
1259{
1260    setWindowModified(true);
1261}
1262
1263void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
1264{
1265    setWindowModified(true);
1266    if (settings->value("Autosize", DEF_AUTOSIZE).toBool()) {
1267        for (int k = tl.row(); k <= br.row(); k++)
1268            taskView->resizeRowToContents(k);
1269        for (int k = tl.column(); k <= br.column(); k++)
1270            taskView->resizeColumnToContents(k);
1271    }
1272}
1273
1274#ifdef Q_OS_WINCE_WM
1275void MainWindow::changeEvent(QEvent *ev)
1276{
1277    if ((ev->type() == QEvent::ActivationChange) && isActiveWindow())
1278        desktopResized(0);
1279
1280    QWidget::changeEvent(ev);
1281}
1282
1283void MainWindow::desktopResized(int screen)
1284{
1285    if ((screen != 0) || !isActiveWindow())
1286        return;
1287
1288QRect availableGeometry = QApplication::desktop()->availableGeometry(0);
1289    if (currentGeometry != availableGeometry) {
1290        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1291        /*!
1292         * \hack HACK: This hack checks whether \link QDesktopWidget::availableGeometry() availableGeometry()\endlink's \c top + \c hegiht = \link QDesktopWidget::screenGeometry() screenGeometry()\endlink's \c height.
1293         *  If \c true, the window gets maximized. If we used \c setGeometry() in this case, the bottom of the
1294         *  window would end up being behind the soft buttons. Is this a bug in Qt or Windows Mobile?
1295         */
1296        if ((availableGeometry.top() + availableGeometry.height()) == QApplication::desktop()->screenGeometry().height()) {
1297            setWindowState(windowState() | Qt::WindowMaximized);
1298        } else {
1299            if (windowState() & Qt::WindowMaximized)
1300                setWindowState(windowState() ^ Qt::WindowMaximized);
1301            setGeometry(availableGeometry);
1302        }
1303        currentGeometry = availableGeometry;
1304        QApplication::restoreOverrideCursor();
1305    }
1306}
1307#endif // Q_OS_WINCE_WM
1308
1309void MainWindow::numCitiesChanged(int nCities)
1310{
1311    blockSignals(true);
1312    spinCities->setValue(nCities);
1313    blockSignals(false);
1314}
1315
1316#ifndef QT_NO_PRINTER
1317void MainWindow::printPreview(QPrinter *printer)
1318{
1319    solutionText->print(printer);
1320}
1321#endif // QT_NO_PRINTER
1322
1323#ifdef Q_OS_WIN32
1324void MainWindow::solverRoutePartFound(int n)
1325{
1326    tl->SetProgressValue(HWND(winId()), n, spinCities->value() * 2);
1327}
1328#endif // Q_OS_WIN32
1329
1330void MainWindow::spinCitiesValueChanged(int n)
1331{
1332    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1333int count = tspmodel->numCities();
1334    tspmodel->setNumCities(n);
1335    if ((n > count) && settings->value("Autosize", DEF_AUTOSIZE).toBool())
1336        for (int k = count; k < n; k++) {
1337            taskView->resizeColumnToContents(k);
1338            taskView->resizeRowToContents(k);
1339        }
1340    QApplication::restoreOverrideCursor();
1341}
1342
1343void MainWindow::check4Updates(bool silent)
1344{
1345#ifdef Q_OS_WIN32
1346    if (silent)
1347        QProcess::startDetached("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\" -silentcheck");
1348    else {
1349        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1350        QProcess::execute("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\"");
1351        QApplication::restoreOverrideCursor();
1352    }
1353#else
1354    Q_UNUSED(silent)
1355#endif
1356    settings->setValue("Check4Updates/LastAttempt", QDate::currentDate().toString(Qt::ISODate));
1357}
1358
1359void MainWindow::closeEvent(QCloseEvent *ev)
1360{
1361    if (!maybeSave()) {
1362        ev->ignore();
1363        return;
1364    }
1365    if (!settings->value("SettingsReset", false).toBool()) {
1366        settings->setValue("NumCities", spinCities->value());
1367
1368        // Saving Main Window state
1369#ifndef HANDHELD
1370        if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
1371            settings->beginGroup("MainWindow");
1372            settings->setValue("Geometry", saveGeometry());
1373            settings->setValue("State", saveState());
1374            settings->setValue("Toolbars", toolBarManager->saveState());
1375            settings->endGroup();
1376        }
1377#else
1378        settings->setValue("MainWindow/ToolbarVisible", toolBarMain->isVisible());
1379#endif // HANDHELD
1380    } else {
1381        settings->remove("SettingsReset");
1382    }
1383
1384    QMainWindow::closeEvent(ev);
1385}
1386
1387void MainWindow::dragEnterEvent(QDragEnterEvent *ev)
1388{
1389    if (ev->mimeData()->hasUrls() && (ev->mimeData()->urls().count() == 1)) {
1390QFileInfo fi(ev->mimeData()->urls().first().toLocalFile());
1391        if ((fi.suffix() == "tspt") || (fi.suffix() == "zkt"))
1392            ev->acceptProposedAction();
1393    }
1394}
1395
1396void MainWindow::drawNode(QPainter &pic, int nstep, bool left, TSPSolver::SStep *step)
1397{
1398qreal r; // Radius of graph node
1399    // We calculate r from the full graph width in centimeters:
1400    //   r = width in pixels / 4.5.
1401    //   width in pixels = DPI * width in inches.
1402    //   width in inches = width in cm / cm in inch.
1403    r = logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5;
1404    if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool())
1405        r *= HQ_FACTOR;
1406#ifdef Q_OS_SYMBIAN
1407    /*! \hack HACK: Solution graph on Symbian is visually larger than on
1408     *   Windows Mobile. This coefficient makes it about the same size.
1409     */
1410    r /= 1.3;
1411#endif
1412
1413qreal x, y;
1414    if (step != NULL)
1415        x = left ? r : r * 3.5;
1416    else
1417        x = r * 2.25;
1418    y = r * (3 * nstep + 1);
1419
1420#ifdef _T_T_L_
1421    if (nstep == -481124) {
1422        _t_t_l_(pic, r, x);
1423        return;
1424    }
1425#endif
1426
1427    pic.drawEllipse(QPointF(x, y), r, r);
1428
1429    if (step != NULL) {
1430QFont font;
1431        if (left) {
1432            font = pic.font();
1433            font.setStrikeOut(true);
1434            pic.setFont(font);
1435        }
1436        pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("(%1;%2)").arg(step->pNode->candidate.nRow + 1).arg(step->pNode->candidate.nCol + 1) + "\n");
1437        if (left) {
1438            font.setStrikeOut(false);
1439            pic.setFont(font);
1440        }
1441        if (step->price != INFINITY) {
1442            pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, isInteger(step->price) ? QString("\n%1").arg(step->price) : QString("\n%1").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()));
1443        } else {
1444            pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, "\n"INFSTR);
1445        }
1446    } else {
1447        pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("Root"));
1448    }
1449
1450    if (nstep == 1) {
1451        pic.drawLine(QPointF(x, y - r), QPointF(r * 2.25, y - 2 * r));
1452    } else if (nstep > 1) {
1453        pic.drawLine(QPointF(x, y - r), QPointF((step->pNode->pNode->next == TSPSolver::SStep::RightBranch) ? r * 3.5 : r, y - 2 * r));
1454    }
1455
1456}
1457
1458void MainWindow::dropEvent(QDropEvent *ev)
1459{
1460    if (maybeSave() && tspmodel->loadTask(ev->mimeData()->urls().first().toLocalFile())) {
1461        setFileName(ev->mimeData()->urls().first().toLocalFile());
1462        tabWidget->setCurrentIndex(0);
1463        setWindowModified(false);
1464        solutionText->clear();
1465        toggleSolutionActions(false);
1466
1467        ev->setDropAction(Qt::CopyAction);
1468        ev->accept();
1469    }
1470}
1471
1472QByteArray MainWindow::generateImage(const QString &format)
1473{
1474    if (graph.isNull())
1475        return QByteArray();
1476
1477    QByteArray data;
1478    QBuffer buf(&data);
1479    // Saving solution graph in SVG or supported raster format (depending on settings and SVG support)
1480#if !defined(NOSVG)
1481    if (format == "svg") {
1482        QSvgGenerator svg;
1483        svg.setSize(QSize(graph.width() + 2, graph.height() + 2));
1484        svg.setResolution(graph.logicalDpiX());
1485        svg.setOutputDevice(&buf);
1486        svg.setTitle(tr("Solution Graph"));
1487        svg.setDescription(tr("Generated with %1").arg(QCoreApplication::applicationName()));
1488        QPainter p;
1489        p.begin(&svg);
1490        p.drawPicture(1, 1, graph);
1491        p.end();
1492    } else {
1493#endif // NOSVG
1494        QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
1495        i.fill(0x00FFFFFF);
1496        QPainter p;
1497        p.begin(&i);
1498        p.drawPicture(1, 1, graph);
1499        p.end();
1500        QImageWriter pic;
1501        pic.setDevice(&buf);
1502        pic.setFormat(format.toLatin1());
1503        if (pic.supportsOption(QImageIOHandler::Description)) {
1504            pic.setText("Title", "Solution Graph");
1505            pic.setText("Software", QCoreApplication::applicationName());
1506        }
1507        if (format == "png")
1508            pic.setQuality(5);
1509        else if (format == "jpeg")
1510            pic.setQuality(80);
1511        if (!pic.write(i)) {
1512            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
1513            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(pic.errorString()));
1514            QApplication::restoreOverrideCursor();
1515            return QByteArray();
1516        }
1517#if !defined(NOSVG)
1518    }
1519#endif // NOSVG
1520    return data;
1521}
1522
1523void MainWindow::initDocStyleSheet()
1524{
1525    solutionText->document()->setDefaultFont(qvariant_cast<QFont>(settings->value("Output/Font", QFont(DEF_FONT_FACE, DEF_FONT_SIZE))));
1526
1527    fmt_paragraph.setTopMargin(5);
1528    fmt_paragraph.setRightMargin(10);
1529    fmt_paragraph.setBottomMargin(0);
1530    fmt_paragraph.setLeftMargin(10);
1531
1532    fmt_lastparagraph.setTopMargin(5);
1533    fmt_lastparagraph.setRightMargin(10);
1534    fmt_lastparagraph.setBottomMargin(15);
1535    fmt_lastparagraph.setLeftMargin(10);
1536
1537    settings->beginGroup("Output/Colors");
1538
1539    fmt_table.setTopMargin(5);
1540    fmt_table.setRightMargin(10);
1541    fmt_table.setBottomMargin(0);
1542    fmt_table.setLeftMargin(10);
1543    fmt_table.setBorder(1);
1544    fmt_table.setBorderBrush(QBrush(QColor(settings->value("TableBorder", DEF_TABLE_COLOR).toString())));
1545    fmt_table.setBorderStyle(QTextFrameFormat::BorderStyle_Solid);
1546    fmt_table.setCellSpacing(0);
1547    fmt_table.setCellPadding(2);
1548
1549    fmt_cell.setAlignment(Qt::AlignHCenter);
1550
1551QColor color = QColor(settings->value("Text", DEF_TEXT_COLOR).toString());
1552QColor hilight;
1553    if (color.value() < 192)
1554        hilight.setHsv(color.hue(), color.saturation(), 127 + (color.value() / 2));
1555    else
1556        hilight.setHsv(color.hue(), color.saturation(), color.value() / 2);
1557
1558#ifdef Q_OS_SYMBIAN
1559    /*!
1560     * \hack HACK: Fixing some weird behavior with default Symbian theme
1561     *  when text and background have the same color.
1562     */
1563    if (color != DEF_TEXT_COLOR) {
1564#endif
1565    solutionText->document()->setDefaultStyleSheet(QString("* {color: %1;}").arg(color.name()));
1566    fmt_default.setForeground(QBrush(color));
1567#ifdef Q_OS_SYMBIAN
1568    }
1569#endif
1570
1571    fmt_selected.setForeground(QBrush(QColor(settings->value("Selected", DEF_SELECTED_COLOR).toString())));
1572    fmt_selected.setFontWeight(QFont::Bold);
1573
1574    fmt_alternate.setForeground(QBrush(QColor(settings->value("Alternate", DEF_ALTERNATE_COLOR).toString())));
1575    fmt_alternate.setFontWeight(QFont::Bold);
1576    fmt_altlist.setForeground(QBrush(hilight));
1577
1578    settings->endGroup();
1579}
1580
1581void MainWindow::loadLangList()
1582{
1583QMap<QString, QStringList> langlist;
1584QFileInfoList langs;
1585QFileInfo lang;
1586QStringList language, dirs;
1587QTranslator t;
1588QDir dir;
1589    dir.setFilter(QDir::Files);
1590    dir.setNameFilters(QStringList("tspsg_*.qm"));
1591    dir.setSorting(QDir::NoSort);
1592
1593    dirs << PATH_L10N << ":/l10n";
1594    foreach (QString dirname, dirs) {
1595        dir.setPath(dirname);
1596        if (dir.exists()) {
1597            langs = dir.entryInfoList();
1598            for (int k = 0; k < langs.size(); k++) {
1599                lang = langs.at(k);
1600                if (lang.completeBaseName().compare("tspsg_en", Qt::CaseInsensitive) && !langlist.contains(lang.completeBaseName().mid(6)) && t.load(lang.completeBaseName(), dirname)) {
1601
1602                    language.clear();
1603                    language.append(lang.completeBaseName().mid(6));
1604                    language.append(t.translate("--------", "COUNTRY", "Please, provide an ISO 3166-1 alpha-2 country code for this translation language here (eg., UA).").toLower());
1605                    language.append(t.translate("--------", "LANGNAME", "Please, provide a native name of your translation language here."));
1606                    language.append(t.translate("MainWindow", "Set application language to %1", "").arg(language.at(2)));
1607
1608                    langlist.insert(language.at(0), language);
1609                }
1610            }
1611        }
1612    }
1613
1614QAction *a;
1615    foreach (language, langlist) {
1616        a = menuSettingsLanguage->addAction(language.at(2));
1617#ifndef QT_NO_STATUSTIP
1618        a->setStatusTip(language.at(3));
1619#endif
1620#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1621        a->setIcon(QIcon::fromTheme(QString("flag-%1").arg(language.at(1)), QIcon(QString(":/images/icons/l10n/flag-%1.png").arg(language.at(1)))));
1622#else
1623        a->setIcon(QIcon(QString(":/images/icons/l10n/flag-%1.png").arg(language.at(1))));
1624#endif
1625        a->setData(language.at(0));
1626        a->setCheckable(true);
1627        a->setActionGroup(groupSettingsLanguageList);
1628        if (settings->value("Language", QLocale::system().name()).toString().startsWith(language.at(0)))
1629            a->setChecked(true);
1630    }
1631}
1632
1633bool MainWindow::loadLanguage(const QString &lang)
1634{
1635// i18n
1636bool ad = false;
1637QString lng = lang;
1638    if (lng.isEmpty()) {
1639        ad = settings->value("Language").toString().isEmpty();
1640        lng = settings->value("Language", QLocale::system().name()).toString();
1641    }
1642static QTranslator *qtTranslator; // Qt library translator
1643    if (qtTranslator) {
1644        qApp->removeTranslator(qtTranslator);
1645        delete qtTranslator;
1646        qtTranslator = NULL;
1647    }
1648static QTranslator *translator; // Application translator
1649    if (translator) {
1650        qApp->removeTranslator(translator);
1651        delete translator;
1652        translator = NULL;
1653    }
1654
1655    if (lng == "en")
1656        return true;
1657
1658    // Trying to load system Qt library translation...
1659    qtTranslator = new QTranslator(this);
1660    if (qtTranslator->load("qt_" + lng, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
1661        // Trying from QT_INSTALL_TRANSLATIONS directory
1662        qApp->installTranslator(qtTranslator);
1663    } else if (qtTranslator->load("qt_" + lng, PATH_L10N)) {
1664        // Than from l10n directory bundled with TSPSG
1665        qApp->installTranslator(qtTranslator);
1666    } else {
1667        // Qt library translation unavailable for this language.
1668        delete qtTranslator;
1669        qtTranslator = NULL;
1670    }
1671
1672    // Now let's load application translation.
1673    translator = new QTranslator(this);
1674    if (translator->load("tspsg_" + lng, PATH_L10N)) {
1675        // We have a translation in the localization directory.
1676        qApp->installTranslator(translator);
1677    } else if (translator->load("tspsg_" + lng, ":/l10n")) {
1678        // We have a translation "built-in" into application resources.
1679        qApp->installTranslator(translator);
1680    } else {
1681        delete translator;
1682        translator = NULL;
1683        if (!ad) {
1684            settings->remove("Language");
1685            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
1686            QMessageBox::warning(isVisible() ? this : NULL, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
1687            QApplication::restoreOverrideCursor();
1688        }
1689        return false;
1690    }
1691    return true;
1692}
1693
1694void MainWindow::loadStyleList()
1695{
1696    menuSettingsStyle->clear();
1697QStringList styles = QStyleFactory::keys();
1698    menuSettingsStyle->insertAction(NULL, actionSettingsStyleSystem);
1699    actionSettingsStyleSystem->setChecked(!settings->contains("Style"));
1700    menuSettingsStyle->addSeparator();
1701QAction *a;
1702    foreach (QString style, styles) {
1703        a = menuSettingsStyle->addAction(style);
1704        a->setData(false);
1705#ifndef QT_NO_STATUSTIP
1706        a->setStatusTip(tr("Set application style to %1").arg(style));
1707#endif
1708        a->setCheckable(true);
1709        a->setActionGroup(groupSettingsStyleList);
1710        QRegExp rx(QString("^Q?%1(::(Style)?)?$").arg(QRegExp::escape(style)), Qt::CaseInsensitive);
1711        if ((style == settings->value("Style").toString()) || QApplication::style()->objectName().contains(rx)
1712#ifndef Q_WS_MAEMO_5
1713            || QString(QApplication::style()->metaObject()->className()).contains(rx)
1714#endif
1715        ) {
1716            a->setChecked(true);
1717        }
1718    }
1719}
1720
1721void MainWindow::loadToolbarList()
1722{
1723    menuSettingsToolbars->clear();
1724#ifndef HANDHELD
1725    menuSettingsToolbars->insertAction(NULL, actionSettingsToolbarsConfigure);
1726    menuSettingsToolbars->addSeparator();
1727QList<QToolBar *> list = toolBarManager->toolBars();
1728    foreach (QToolBar *t, list) {
1729        menuSettingsToolbars->insertAction(NULL, t->toggleViewAction());
1730    }
1731#else // HANDHELD
1732    menuSettingsToolbars->insertAction(NULL, toolBarMain->toggleViewAction());
1733#endif // HANDHELD
1734}
1735
1736bool MainWindow::maybeSave()
1737{
1738    if (!isWindowModified())
1739        return true;
1740#ifdef Q_OS_SYMBIAN
1741    int res = QSMessageBox(this).exec();
1742#else
1743    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);
1744#endif
1745    if (res == QMessageBox::Save)
1746        return actionFileSaveTriggered();
1747    else if (res == QMessageBox::Cancel)
1748        return false;
1749    else
1750        return true;
1751}
1752
1753void MainWindow::outputMatrix(QTextCursor &cur, const TSPSolver::TMatrix &matrix)
1754{
1755int n = spinCities->value();
1756QTextTable *table = cur.insertTable(n, n, fmt_table);
1757
1758    for (int r = 0; r < n; r++) {
1759        for (int c = 0; c < n; c++) {
1760            cur = table->cellAt(r, c).firstCursorPosition();
1761            cur.setBlockFormat(fmt_cell);
1762            cur.setBlockCharFormat(fmt_default);
1763            if (matrix.at(r).at(c) == INFINITY)
1764                cur.insertText(INFSTR);
1765            else
1766                cur.insertText(isInteger(matrix.at(r).at(c)) ? QString("%1").arg(matrix.at(r).at(c)) : QString("%1").arg(matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()));
1767        }
1768        QCoreApplication::processEvents();
1769    }
1770    cur.movePosition(QTextCursor::End);
1771}
1772
1773void MainWindow::outputMatrix(QTextCursor &cur, const TSPSolver::SStep &step)
1774{
1775int n = spinCities->value();
1776QTextTable *table = cur.insertTable(n, n, fmt_table);
1777
1778    for (int r = 0; r < n; r++) {
1779        for (int c = 0; c < n; c++) {
1780            cur = table->cellAt(r, c).firstCursorPosition();
1781            cur.setBlockFormat(fmt_cell);
1782            if (step.matrix.at(r).at(c) == INFINITY)
1783                cur.insertText(INFSTR, fmt_default);
1784            else if ((r == step.candidate.nRow) && (c == step.candidate.nCol))
1785                cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_selected);
1786            else {
1787    TSPSolver::SStep::SCandidate cand;
1788                cand.nRow = r;
1789                cand.nCol = c;
1790                if (step.alts.contains(cand))
1791                    cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_alternate);
1792                else
1793                    cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_default);
1794            }
1795        }
1796        QCoreApplication::processEvents();
1797    }
1798
1799    cur.movePosition(QTextCursor::End);
1800}
1801
1802#ifdef Q_OS_SYMBIAN
1803void MainWindow::resizeEvent(QResizeEvent *ev)
1804{
1805    static bool tb = toolBarMain->isVisible();
1806    if ((ev->size().width() < ev->size().height())
1807            && (ev->oldSize().width() > ev->oldSize().height())) {
1808        // From landscape to portrait
1809        if (tb)
1810            toolBarMain->show();
1811        setWindowState(Qt::WindowMaximized);
1812    } else if ((ev->size().width() > ev->size().height())
1813               && (ev->oldSize().width() < ev->oldSize().height())) {
1814        // From portrait to landscape
1815        if (tb = toolBarMain->isVisible())
1816            toolBarMain->hide();
1817        setWindowState(Qt::WindowFullScreen);
1818    }
1819
1820    QWidget::resizeEvent(ev);
1821}
1822#endif // Q_OS_SYMBIAN
1823
1824void MainWindow::retranslateUi(bool all)
1825{
1826    if (all)
1827        Ui_MainWindow::retranslateUi(this);
1828
1829#ifdef Q_OS_BLACKBERRY
1830    menuSettings->removeAction(menuSettingsStyle->menuAction());
1831#else
1832    loadStyleList();
1833#endif
1834    loadToolbarList();
1835
1836#ifndef QT_NO_PRINTDIALOG
1837    actionFilePrintPreview->setText(tr("P&rint Preview..."));
1838#ifndef QT_NO_TOOLTIP
1839    actionFilePrintPreview->setToolTip(tr("Preview solution results"));
1840#endif // QT_NO_TOOLTIP
1841#ifndef QT_NO_STATUSTIP
1842    actionFilePrintPreview->setStatusTip(tr("Preview current solution results before printing"));
1843#endif // QT_NO_STATUSTIP
1844
1845    actionFilePageSetup->setText(tr("Pa&ge Setup..."));
1846#ifndef QT_NO_TOOLTIP
1847    actionFilePageSetup->setToolTip(tr("Setup print options"));
1848#endif // QT_NO_TOOLTIP
1849#ifndef QT_NO_STATUSTIP
1850    actionFilePageSetup->setStatusTip(tr("Setup page-related options for printing"));
1851#endif // QT_NO_STATUSTIP
1852
1853    actionFilePrint->setText(tr("&Print..."));
1854#ifndef QT_NO_TOOLTIP
1855    actionFilePrint->setToolTip(tr("Print solution"));
1856#endif // QT_NO_TOOLTIP
1857#ifndef QT_NO_STATUSTIP
1858    actionFilePrint->setStatusTip(tr("Print current solution results"));
1859#endif // QT_NO_STATUSTIP
1860#ifndef QT_NO_SHORTCUT
1861    actionFilePrint->setShortcut(tr("Ctrl+P"));
1862#endif // QT_NO_SHORTCUT
1863#endif // QT_NO_PRINTDIALOG
1864
1865#ifndef QT_NO_STATUSTIP
1866    actionFileExit->setStatusTip(tr("Exit %1").arg(QCoreApplication::applicationName()));
1867#endif // QT_NO_STATUSTIP
1868
1869#ifndef HANDHELD
1870    actionSettingsToolbarsConfigure->setText(tr("Configure..."));
1871#ifndef QT_NO_STATUSTIP
1872    actionSettingsToolbarsConfigure->setStatusTip(tr("Customize toolbars"));
1873#endif // QT_NO_STATUSTIP
1874#endif // HANDHELD
1875
1876#ifndef QT_NO_STATUSTIP
1877    actionHelpReportBug->setStatusTip(tr("Report about a bug in %1").arg(QCoreApplication::applicationName()));
1878#endif // QT_NO_STATUSTIP
1879    if (actionHelpCheck4Updates != NULL) {
1880        actionHelpCheck4Updates->setText(tr("Check for &Updates..."));
1881#ifndef QT_NO_STATUSTIP
1882        actionHelpCheck4Updates->setStatusTip(tr("Check for %1 updates").arg(QCoreApplication::applicationName()));
1883#endif // QT_NO_STATUSTIP
1884    }
1885#ifndef QT_NO_STATUSTIP
1886    actionHelpAbout->setStatusTip(tr("About %1").arg(QCoreApplication::applicationName()));
1887#endif // QT_NO_STATUSTIP
1888
1889#ifdef Q_OS_SYMBIAN
1890    actionRightSoftKey->setText(tr("E&xit"));
1891#endif
1892}
1893
1894bool MainWindow::saveTask()
1895{
1896    QStringList filters;
1897#ifdef Q_OS_BLACKBERRY
1898    filters << "*.tspt";
1899#else
1900    filters.append(tr("%1 Task File").arg("TSPSG") + " (*.tspt)");
1901    filters.append(tr("All Files") + " (*)");
1902#endif
1903QString file;
1904    if ((fileName == tr("Untitled") + ".tspt") && settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool()) {
1905#ifdef Q_OS_BLACKBERRY
1906        file = settings->value(OS"/LastUsed/TaskSavePath", "/accounts/1000/shared/documents").toString();
1907#else
1908        file = settings->value(OS"/LastUsed/TaskSavePath").toString();
1909#endif
1910        if (!file.isEmpty())
1911            file.append("/");
1912        file.append(fileName);
1913    } else if (fileName.endsWith(".tspt", Qt::CaseInsensitive))
1914        file = fileName;
1915    else
1916        file = QFileInfo(fileName).path() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt";
1917
1918#ifdef Q_OS_BLACKBERRY
1919    FilePicker fd;
1920    fd.setMode(FilePickerMode::Saver);
1921    fd.setType(FileType::Document | FileType::Other);
1922    fd.setDefaultType(FileType::Document);
1923    fd.setAllowOverwrite(true);
1924    fd.setTitle(tr("Task Save"));
1925//    fd.setDirectories(QStringList(QFileInfo(file).path()));
1926    fd.setDefaultSaveFileNames(QStringList(file));
1927    fd.setFilter(filters);
1928    fd.open();
1929
1930    QEventLoop loop;
1931    connect(&fd, SIGNAL(pickerClosed()), &loop, SLOT(quit()));
1932    loop.exec();
1933
1934    if (fd.selectedFiles().count() < 1)
1935        return false;
1936    file = fd.selectedFiles().at(0);
1937#else
1938    QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
1939    file = QFileDialog::getSaveFileName(this, tr("Task Save"), file, filters.join(";;"), NULL, opts);
1940    if (file.isEmpty())
1941        return false;
1942#endif
1943    if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
1944        settings->setValue(OS"/LastUsed/TaskSavePath", QFileInfo(file).path());
1945    if (QFileInfo(file).suffix().isEmpty()) {
1946        file.append(".tspt");
1947    }
1948
1949    if (tspmodel->saveTask(file)) {
1950        setFileName(file);
1951        setWindowModified(false);
1952        return true;
1953    }
1954    return false;
1955}
1956
1957void MainWindow::setFileName(const QString &fileName)
1958{
1959    this->fileName = fileName;
1960    setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(QCoreApplication::applicationName()));
1961}
1962
1963void MainWindow::setupUi()
1964{
1965    Ui_MainWindow::setupUi(this);
1966
1967#ifdef Q_OS_SYMBIAN
1968    setWindowFlags(windowFlags() | Qt::WindowSoftkeysVisibleHint);
1969#endif // Q_OS_SYMBIAN
1970
1971    // File Menu
1972    actionFileNew->setIcon(GET_ICON("document-new"));
1973    actionFileOpen->setIcon(GET_ICON("document-open"));
1974    actionFileSave->setIcon(GET_ICON("document-save"));
1975#if !defined(HANDHELD) || defined(Q_OS_BLACKBERRY)
1976    menuFileSaveAs->setIcon(GET_ICON("document-save-as"));
1977#endif
1978    actionFileExit->setIcon(GET_ICON("application-exit"));
1979    // Settings Menu
1980#if !defined(HANDHELD) || defined(Q_OS_BLACKBERRY)
1981    menuSettingsLanguage->setIcon(GET_ICON("preferences-desktop-locale"));
1982#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1983    actionSettingsLanguageEnglish->setIcon(QIcon::fromTheme("flag-gb", QIcon(":/images/icons/l10n/flag-gb.png")));
1984#else
1985    actionSettingsLanguageEnglish->setIcon(QIcon(":/images/icons/l10n/flag-gb.png"));
1986#endif // QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1987    menuSettingsStyle->setIcon(GET_ICON("preferences-desktop-theme"));
1988#endif // HANDHELD
1989    actionSettingsPreferences->setIcon(GET_ICON("preferences-system"));
1990    // Help Menu
1991#if !defined(HANDHELD) || defined(Q_OS_BLACKBERRY)
1992    actionHelpContents->setIcon(GET_ICON("help-contents"));
1993    actionHelpContextual->setIcon(GET_ICON("help-contextual"));
1994    actionHelpOnlineSupport->setIcon(GET_ICON("applications-internet"));
1995    actionHelpReportBug->setIcon(GET_ICON("tools-report-bug"));
1996    actionHelpAbout->setIcon(GET_ICON("help-about"));
1997#ifdef Q_OS_BLACKBERRY
1998    // Qt about dialog is too big for the screen
1999    // and it's impossible to close it.
2000    menuHelp->removeAction(actionHelpAboutQt);
2001#else // Q_OS_BLACKBERRY
2002#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
2003    actionHelpAboutQt->setIcon(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"));
2004#else // QT_VERSION < QT_VERSION_CHECK(5,0,0)
2005    actionHelpAboutQt->setIcon(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"));
2006#endif // QT_VERSION < QT_VERSION_CHECK(5,0,0)
2007#endif // Q_OS_BLACKBERRY
2008#endif // HANDHELD
2009    // Buttons
2010    buttonRandom->setIcon(GET_ICON("roll"));
2011    buttonSolve->setIcon(GET_ICON("dialog-ok"));
2012    buttonSaveSolution->setIcon(GET_ICON("document-save-as"));
2013    buttonBackToTask->setIcon(GET_ICON("go-previous"));
2014
2015//      action->setIcon(GET_ICON(""));
2016
2017#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
2018    setToolButtonStyle(Qt::ToolButtonFollowStyle);
2019#endif
2020
2021#ifndef HANDHELD
2022QStatusBar *statusbar = new QStatusBar(this);
2023    statusbar->setObjectName("statusbar");
2024    setStatusBar(statusbar);
2025#endif // HANDHELD
2026
2027#ifdef Q_OS_WINCE_WM
2028    menuBar()->setDefaultAction(menuFile->menuAction());
2029
2030QScrollArea *scrollArea = new QScrollArea(this);
2031    scrollArea->setFrameShape(QFrame::NoFrame);
2032    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
2033    scrollArea->setWidgetResizable(true);
2034    scrollArea->setWidget(tabWidget);
2035    setCentralWidget(scrollArea);
2036#else
2037    setCentralWidget(tabWidget);
2038#endif // Q_OS_WINCE_WM
2039
2040    //! \hack HACK: A little hack for toolbar icons to have a sane size.
2041#if defined(HANDHELD) && !defined(Q_WS_MAEMO_5)
2042#ifdef Q_OS_SYMBIAN
2043    toolBarMain->setIconSize(QSize(logicalDpiX() / 5.2, logicalDpiY() / 5.2));
2044#else
2045    toolBarMain->setIconSize(QSize(logicalDpiX() / 4, logicalDpiY() / 4));
2046#endif // Q_OS_SYMBIAN
2047#endif // HANDHELD && !Q_WS_MAEMO_5
2048QToolButton *tb = static_cast<QToolButton *>(toolBarMain->widgetForAction(actionFileSave));
2049    if (tb != NULL) {
2050        tb->setMenu(menuFileSaveAs);
2051        tb->setPopupMode(QToolButton::MenuButtonPopup);
2052    }
2053
2054//      solutionText->document()->setDefaultFont(settings->value("Output/Font", QFont(DEF_FONT_FAMILY, DEF_FONT_SIZE)).value<QFont>());
2055    solutionText->setWordWrapMode(QTextOption::WordWrap);
2056
2057#ifndef QT_NO_PRINTDIALOG
2058    actionFilePrintPreview = new QAction(this);
2059    actionFilePrintPreview->setObjectName("actionFilePrintPreview");
2060    actionFilePrintPreview->setEnabled(false);
2061    actionFilePrintPreview->setIcon(GET_ICON("document-print-preview"));
2062
2063    actionFilePageSetup = new QAction(this);
2064    actionFilePageSetup->setObjectName("actionFilePrintSetup");
2065//    actionFilePageSetup->setEnabled(false);
2066#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
2067    actionFilePageSetup->setIcon(QIcon::fromTheme("document-page-setup", QIcon(":/trolltech/dialogs/qprintpreviewdialog/images/page-setup-32.png")));
2068#else
2069    actionFilePageSetup->setIcon(QIcon(":/trolltech/dialogs/qprintpreviewdialog/images/page-setup-32.png"));
2070#endif
2071
2072    actionFilePrint = new QAction(this);
2073    actionFilePrint->setObjectName("actionFilePrint");
2074    actionFilePrint->setEnabled(false);
2075    actionFilePrint->setIcon(GET_ICON("document-print"));
2076
2077    menuFile->insertAction(actionFileExit, actionFilePrintPreview);
2078    menuFile->insertAction(actionFileExit, actionFilePageSetup);
2079    menuFile->insertAction(actionFileExit, actionFilePrint);
2080    menuFile->insertSeparator(actionFileExit);
2081
2082    toolBarMain->insertAction(actionSettingsPreferences, actionFilePrint);
2083#endif // QT_NO_PRINTDIALOG
2084
2085    groupSettingsLanguageList = new QActionGroup(this);
2086#ifdef Q_WS_MAEMO_5
2087    groupSettingsLanguageList->addAction(actionSettingsLanguageAutodetect);
2088#endif
2089    actionSettingsLanguageEnglish->setData("en");
2090    actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
2091    loadLangList();
2092    actionSettingsLanguageAutodetect->setChecked(settings->value("Language", "").toString().isEmpty());
2093
2094    actionSettingsStyleSystem->setData(true);
2095    groupSettingsStyleList = new QActionGroup(this);
2096#ifdef Q_WS_MAEMO_5
2097    groupSettingsStyleList->addAction(actionSettingsStyleSystem);
2098#endif
2099
2100#ifndef HANDHELD
2101    actionSettingsToolbarsConfigure = new QAction(this);
2102    actionSettingsToolbarsConfigure->setIcon(GET_ICON("configure-toolbars"));
2103#endif // HANDHELD
2104
2105    if (hasUpdater()) {
2106        actionHelpCheck4Updates = new QAction(this);
2107        actionHelpCheck4Updates->setIcon(GET_ICON("system-software-update"));
2108        actionHelpCheck4Updates->setEnabled(hasUpdater());
2109        menuHelp->insertAction(actionHelpAboutQt, actionHelpCheck4Updates);
2110        menuHelp->insertSeparator(actionHelpAboutQt);
2111    } else
2112        actionHelpCheck4Updates = NULL;
2113
2114    spinCities->setMaximum(settings->value("Tweaks/MaxNumCities", MAX_NUM_CITIES).toInt());
2115
2116#ifndef HANDHELD
2117    toolBarManager = new QtToolBarManager(this);
2118    toolBarManager->setMainWindow(this);
2119QString cat = toolBarMain->windowTitle();
2120    toolBarManager->addToolBar(toolBarMain, cat);
2121#ifndef QT_NO_PRINTER
2122    toolBarManager->addAction(actionFilePrintPreview, cat);
2123    toolBarManager->addAction(actionFilePageSetup, cat);
2124#endif // QT_NO_PRINTER
2125    toolBarManager->addAction(actionHelpContents, cat);
2126    toolBarManager->addAction(actionHelpContextual, cat);
2127    toolBarManager->restoreState(settings->value("MainWindow/Toolbars").toByteArray());
2128#else
2129    toolBarMain->setVisible(settings->value("MainWindow/ToolbarVisible", true).toBool());
2130#endif // HANDHELD
2131
2132#ifdef Q_OS_SYMBIAN
2133    // Replace Exit on the right soft key with our own exit action.
2134    // This makes it translatable.
2135    actionRightSoftKey = new QAction(this);
2136    actionRightSoftKey->setSoftKeyRole(QAction::NegativeSoftKey);
2137    connect(actionRightSoftKey, SIGNAL(triggered()), SLOT(close()));
2138    addAction(actionRightSoftKey);
2139#endif
2140
2141    retranslateUi(false);
2142
2143#ifndef HANDHELD
2144    // Adding some eyecandy
2145    if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool())  {
2146        toggleTranclucency(true);
2147    }
2148#endif // HANDHELD
2149}
2150
2151void MainWindow::toggleSolutionActions(bool enable)
2152{
2153    buttonSaveSolution->setEnabled(enable);
2154    actionFileSaveAsSolution->setEnabled(enable);
2155    solutionText->setEnabled(enable);
2156#ifndef QT_NO_PRINTDIALOG
2157    actionFilePrint->setEnabled(enable);
2158    actionFilePrintPreview->setEnabled(enable);
2159#endif // QT_NO_PRINTDIALOG
2160}
2161
2162void MainWindow::toggleTranclucency(bool enable)
2163{
2164#ifndef HANDHELD
2165    toggleStyle(labelVariant, enable);
2166    toggleStyle(labelCities, enable);
2167    toggleStyle(statusBar(), enable);
2168    tabWidget->setDocumentMode(enable);
2169    QtWin::enableBlurBehindWindow(this, enable);
2170#else
2171    Q_UNUSED(enable);
2172#endif // HANDHELD
2173}
2174
2175void MainWindow::actionHelpOnlineSupportTriggered()
2176{
2177    QDesktopServices::openUrl(QUrl("http://tspsg.info/goto/support"));
2178}
2179
2180void MainWindow::actionHelpReportBugTriggered()
2181{
2182    QDesktopServices::openUrl(QUrl("http://tspsg.info/goto/bugtracker"));
2183}
2184
2185#ifdef Q_OS_SYMBIAN
2186QSMessageBox::QSMessageBox(QWidget *parent)
2187    : QMessageBox(parent)
2188{
2189    setIcon(QMessageBox::Warning);
2190    setWindowTitle(QApplication::translate("MainWindow", "Unsaved Changes"));
2191    setText(QApplication::translate("MainWindow", "Would you like to save changes in the current task?"));
2192    setStandardButtons(QMessageBox::Save);
2193
2194    QMenu *m = new QMenu(this);
2195    m->addAction(QApplication::translate("QDialogButtonBox", "Discard", "No need to translate this. The translation will be taken from Qt translation files."),
2196                 this, SLOT(discard()));
2197    m->addAction(QApplication::translate("QDialogButtonBox", "Cancel", "No need to translate this. The translation will be taken from Qt translation files."),
2198                 this, SLOT(cancel()));
2199
2200    QAction *o = new QAction(QApplication::translate("QtToolBarDialog", "Actions"), this);
2201    o->setSoftKeyRole(QAction::NegativeSoftKey);
2202    o->setMenu(m);
2203    addAction(o);
2204}
2205
2206void QSMessageBox::cancel(){
2207    done(QMessageBox::Cancel);
2208}
2209
2210void QSMessageBox::discard() {
2211    done(QMessageBox::Discard);
2212}
2213#endif // Q_OS_SYMBIAN
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