source: tspsg/src/mainwindow.cpp @ 21c03af787

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Last change on this file since 21c03af787 was 21c03af787, checked in by Oleksii Serdiuk, 11 years ago

Updated copyright endyear from 2012 to 2013.
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File size: 77.9 KB
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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 3 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#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
66#   include <QtConcurrent>
67#endif
68
69#include "os.h"
70
71#ifndef HANDHELD
72#   include "qttoolbardialog.h"
73    // Eyecandy
74#   include "qtwin.h"
75#endif // HANDHELD
76
77#ifndef QT_NO_PRINTER
78    Q_DECLARE_METATYPE(QPrinter::PageSize)
79    Q_DECLARE_METATYPE(QPrinter::Orientation)
80#endif
81
82#ifdef Q_OS_WIN32
83#   include "shobjidl.h"
84#endif
85
86#ifdef _T_T_L_
87#include "_.h"
88_C_ _R_ _Y_ _P_ _T_
89#endif
90
91// BEGIN HELPER FUNCTIONS
92/*!
93 * \brief Checks whether \a x contains an integer value.
94 * \param x A value to check.
95 * \return \c true if \a x countains an integer, oherwise \c false.
96 */
97inline bool isInteger(double x)
98{
99double i;
100    return (modf(x, &i) == 0.0);
101}
102
103/*!
104 * \brief Converts \a in into Base64 format with lines wrapped at 64 characters.
105 * \param in A byte array to be converted.
106 * \return Converted byte array.
107 */
108inline QByteArray toWrappedBase64(const QByteArray &in)
109{
110    QByteArray out, base64(in.toBase64());
111    for (int i = 0; i <= base64.size() - 64; i += 64) {
112        out.append(QByteArray::fromRawData(base64.data() + i, 64)).append('\n');
113    }
114    if (int rest = base64.size() % 64)
115        out.append(QByteArray::fromRawData(base64.data() + base64.size() - rest, rest));
116    return out;
117}
118// END HELPER FUNCTIONS
119
120/*!
121 * \brief Class constructor.
122 * \param parent Main Window parent widget.
123 *
124 *  Initializes Main Window and creates its layout based on target OS.
125 *  Loads TSPSG settings and opens a task file if it was specified as a commandline parameter.
126 */
127MainWindow::MainWindow(QWidget *parent)
128    : QMainWindow(parent)
129{
130    settings = initSettings(this);
131
132    // Sanity check
133    int m = settings->value("Tweaks/MaxNumCities", MAX_NUM_CITIES).toInt();
134    if (m < 3)
135        settings->setValue("Tweaks/MaxNumCities", 3);
136
137    if (settings->contains("Style")) {
138QStyle *s = QStyleFactory::create(settings->value("Style").toString());
139        if (s != NULL)
140            QApplication::setStyle(s);
141        else
142            settings->remove("Style");
143    }
144
145    loadLanguage();
146    setupUi();
147    setAcceptDrops(true);
148
149    initDocStyleSheet();
150
151#ifndef QT_NO_PRINTER
152    printer = new QPrinter(QPrinter::HighResolution);
153    settings->beginGroup("Printer");
154QPrinter::PaperSize size = qvariant_cast<QPrinter::PaperSize>(settings->value("PaperSize", DEF_PAGE_SIZE));
155    if (size != QPrinter::Custom) {
156        printer->setPaperSize(size);
157    } else {
158        printer->setPaperSize(QSizeF(settings->value("PaperWidth").toReal(), settings->value("PaperHeight").toReal()),
159                              QPrinter::Millimeter);
160    }
161
162    printer->setOrientation(qvariant_cast<QPrinter::Orientation>(settings->value("PageOrientation", DEF_PAGE_ORIENTATION)));
163    printer->setPageMargins(
164        settings->value("MarginLeft", DEF_MARGIN_LEFT).toReal(),
165        settings->value("MarginTop", DEF_MARGIN_TOP).toReal(),
166        settings->value("MarginRight", DEF_MARGIN_RIGHT).toReal(),
167        settings->value("MarginBottom", DEF_MARGIN_BOTTOM).toReal(),
168        QPrinter::Millimeter);
169    settings->endGroup();
170#endif // QT_NO_PRINTER
171
172#ifdef Q_OS_WINCE_WM
173    currentGeometry = QApplication::desktop()->availableGeometry(0);
174    // We need to react to SIP show/hide and resize the window appropriately
175    connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), SLOT(desktopResized(int)));
176#endif // Q_OS_WINCE_WM
177    connect(actionFileNew, SIGNAL(triggered()), SLOT(actionFileNewTriggered()));
178    connect(actionFileOpen, SIGNAL(triggered()), SLOT(actionFileOpenTriggered()));
179    connect(actionFileSave, SIGNAL(triggered()), SLOT(actionFileSaveTriggered()));
180    connect(actionFileSaveAsTask, SIGNAL(triggered()), SLOT(actionFileSaveAsTaskTriggered()));
181    connect(actionFileSaveAsSolution, SIGNAL(triggered()), SLOT(actionFileSaveAsSolutionTriggered()));
182#ifndef QT_NO_PRINTER
183    connect(actionFilePrintPreview, SIGNAL(triggered()), SLOT(actionFilePrintPreviewTriggered()));
184    connect(actionFilePageSetup, SIGNAL(triggered()), SLOT(actionFilePageSetupTriggered()));
185    connect(actionFilePrint, SIGNAL(triggered()), SLOT(actionFilePrintTriggered()));
186#endif // QT_NO_PRINTER
187#ifndef HANDHELD
188    connect(actionSettingsToolbarsConfigure, SIGNAL(triggered()), SLOT(actionSettingsToolbarsConfigureTriggered()));
189#endif // HANDHELD
190    connect(actionSettingsPreferences, SIGNAL(triggered()), SLOT(actionSettingsPreferencesTriggered()));
191    if (actionHelpCheck4Updates != NULL)
192        connect(actionHelpCheck4Updates, SIGNAL(triggered()), SLOT(actionHelpCheck4UpdatesTriggered()));
193    connect(actionSettingsLanguageAutodetect, SIGNAL(triggered(bool)), SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
194    connect(groupSettingsLanguageList, SIGNAL(triggered(QAction *)), SLOT(groupSettingsLanguageListTriggered(QAction *)));
195    connect(actionSettingsStyleSystem, SIGNAL(triggered(bool)), SLOT(actionSettingsStyleSystemTriggered(bool)));
196    connect(groupSettingsStyleList, SIGNAL(triggered(QAction*)), SLOT(groupSettingsStyleListTriggered(QAction*)));
197    connect(actionHelpOnlineSupport, SIGNAL(triggered()), SLOT(actionHelpOnlineSupportTriggered()));
198    connect(actionHelpReportBug, SIGNAL(triggered()), SLOT(actionHelpReportBugTriggered()));
199    connect(actionHelpAboutQt, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
200    connect(actionHelpAbout, SIGNAL(triggered()), SLOT(actionHelpAboutTriggered()));
201
202    connect(buttonSolve, SIGNAL(clicked()), SLOT(buttonSolveClicked()));
203    connect(buttonRandom, SIGNAL(clicked()), SLOT(buttonRandomClicked()));
204    connect(buttonBackToTask, SIGNAL(clicked()), SLOT(buttonBackToTaskClicked()));
205    connect(spinCities, SIGNAL(valueChanged(int)), SLOT(spinCitiesValueChanged(int)));
206
207#ifndef HANDHELD
208    // Centering main window
209QRect rect = geometry();
210    rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
211    setGeometry(rect);
212    if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
213        // Loading of saved window state
214        settings->beginGroup("MainWindow");
215        restoreGeometry(settings->value("Geometry").toByteArray());
216        restoreState(settings->value("State").toByteArray());
217        settings->endGroup();
218    }
219#endif // HANDHELD
220
221    tspmodel = new CTSPModel(this);
222    taskView->setModel(tspmodel);
223    connect(tspmodel, SIGNAL(numCitiesChanged(int)), SLOT(numCitiesChanged(int)));
224    connect(tspmodel, SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)), SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
225    connect(tspmodel, SIGNAL(layoutChanged()), SLOT(dataChanged()));
226    if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
227        setFileName(QCoreApplication::arguments().at(1));
228    else {
229        setFileName();
230        spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
231        spinCitiesValueChanged(spinCities->value());
232    }
233    setWindowModified(false);
234
235    if (actionHelpCheck4Updates != NULL) {
236        if (!settings->contains("Check4Updates/Enabled")) {
237            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
238            settings->setValue("Check4Updates/Enabled",
239                QMessageBox::question(this, QCoreApplication::applicationName(),
240                    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()),
241                    QMessageBox::Yes | QMessageBox::No
242                ) == QMessageBox::Yes
243            );
244            QApplication::restoreOverrideCursor();
245        }
246        if ((settings->value("Check4Updates/Enabled", DEF_CHECK_FOR_UPDATES).toBool())
247            && (QDate(qvariant_cast<QDate>(settings->value("Check4Updates/LastAttempt"))).daysTo(QDate::currentDate()) >= settings->value("Check4Updates/Interval", DEF_UPDATE_CHECK_INTERVAL).toInt())) {
248            check4Updates(true);
249        }
250    }
251}
252
253MainWindow::~MainWindow()
254{
255#ifndef QT_NO_PRINTER
256    delete printer;
257#endif
258}
259
260/* Privates **********************************************************/
261
262void MainWindow::actionFileNewTriggered()
263{
264    if (!maybeSave())
265        return;
266    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
267    tspmodel->clear();
268    setFileName();
269    setWindowModified(false);
270    tabWidget->setCurrentIndex(0);
271    solutionText->clear();
272    graph = QPicture();
273    toggleSolutionActions(false);
274    QApplication::restoreOverrideCursor();
275}
276
277void MainWindow::actionFileOpenTriggered()
278{
279    if (!maybeSave())
280        return;
281
282QStringList filters(tr("All Supported Formats") + " (*.tspt *.zkt)");
283    filters.append(tr("%1 Task Files").arg("TSPSG") + " (*.tspt)");
284    filters.append(tr("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
285    filters.append(tr("All Files") + " (*)");
286
287QString file;
288    if ((fileName == tr("Untitled") + ".tspt") && settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
289        file = settings->value(OS"/LastUsed/TaskLoadPath").toString();
290    else
291        file = QFileInfo(fileName).path();
292QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
293    file = QFileDialog::getOpenFileName(this, tr("Task Load"), file, filters.join(";;"), NULL, opts);
294    if (file.isEmpty() || !QFileInfo(file).isFile())
295        return;
296    if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
297        settings->setValue(OS"/LastUsed/TaskLoadPath", QFileInfo(file).path());
298
299    if (!tspmodel->loadTask(file))
300        return;
301    setFileName(file);
302    tabWidget->setCurrentIndex(0);
303    setWindowModified(false);
304    solutionText->clear();
305    toggleSolutionActions(false);
306}
307
308bool MainWindow::actionFileSaveTriggered()
309{
310    if ((fileName == tr("Untitled") + ".tspt") || !fileName.endsWith(".tspt", Qt::CaseInsensitive))
311        return saveTask();
312    else
313        if (tspmodel->saveTask(fileName)) {
314            setWindowModified(false);
315            return true;
316        } else
317            return false;
318}
319
320void MainWindow::actionFileSaveAsTaskTriggered()
321{
322    saveTask();
323}
324
325void MainWindow::actionFileSaveAsSolutionTriggered()
326{
327static QString selectedFile;
328    if (selectedFile.isEmpty()) {
329        if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool()) {
330            selectedFile = settings->value(OS"/LastUsed/SolutionSavePath").toString();
331        }
332    } else
333        selectedFile = QFileInfo(selectedFile).path();
334    if (!selectedFile.isEmpty())
335        selectedFile.append("/");
336    if (fileName == tr("Untitled") + ".tspt") {
337#ifndef QT_NO_PRINTER
338        selectedFile += "solution.pdf";
339#else
340        selectedFile += "solution.html";
341#endif // QT_NO_PRINTER
342    } else {
343#ifndef QT_NO_PRINTER
344        selectedFile += QFileInfo(fileName).completeBaseName() + ".pdf";
345#else
346        selectedFile += QFileInfo(fileName).completeBaseName() + ".html";
347#endif // QT_NO_PRINTER
348    }
349
350QStringList filters;
351#ifndef QT_NO_PRINTER
352    filters.append(tr("PDF Files") + " (*.pdf)");
353#endif
354    filters.append(tr("HTML Files") + " (*.html *.htm)");
355    filters.append(tr("Web Archive Files") + " (*.mht *.mhtml)");
356    filters.append(tr("OpenDocument Files") + " (*.odt)");
357    filters.append(tr("All Files") + " (*)");
358
359QFileDialog::Options opts(settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog);
360QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, opts);
361    if (file.isEmpty())
362        return;
363    selectedFile = file;
364    if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
365        settings->setValue(OS"/LastUsed/SolutionSavePath", QFileInfo(selectedFile).path());
366    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
367#ifndef QT_NO_PRINTER
368    if (selectedFile.endsWith(".pdf", Qt::CaseInsensitive)) {
369        printer->setOutputFileName(selectedFile);
370        solutionText->document()->print(printer);
371        printer->setOutputFileName(QString());
372        QApplication::restoreOverrideCursor();
373        return;
374    }
375#endif
376    QByteArray imgdata;
377    bool mhtml = selectedFile.contains(QRegExp("\\.mht(ml)?$", Qt::CaseInsensitive));
378    bool embed = !mhtml && settings->value("Output/EmbedGraphIntoHTML", DEF_EMBED_GRAPH_INTO_HTML).toBool();
379    if (selectedFile.contains(QRegExp("\\.(html?|mht(ml)?)$", Qt::CaseInsensitive))) {
380        QFile file(selectedFile);
381        if (!file.open(QFile::WriteOnly | QFile::Text)) {
382            QApplication::restoreOverrideCursor();
383            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(file.errorString()));
384            return;
385        }
386
387        QString html = solutionText->document()->toHtml("UTF-8");
388        html.replace(QRegExp("font-family:([^;]*);"),
389                     "font-family:\\1, 'DejaVu Sans Mono', 'Courier New', Courier, monospace;");
390        html.replace(QRegExp("<style ([^>]*)>"), QString("<style \\1>\n"
391                                                         "body { color: %1 }\n"
392                                                         "td { border-style: solid; border-width: 1px; border-color: %2; }")
393                     .arg(settings->value("Output/Colors/Font", DEF_TEXT_COLOR).toString(),
394                          settings->value("Output/Colors/TableBorder", DEF_TABLE_COLOR).toString()));
395
396        QFileInfo fi(selectedFile);
397        QString format = settings->value("Output/GraphImageFormat", DEF_GRAPH_IMAGE_FORMAT).toString();
398#if !defined(NOSVG)
399        if (!QImageWriter::supportedImageFormats().contains(format.toLatin1()) && (format != "svg")) {
400#else // NOSVG
401        if (!QImageWriter::supportedImageFormats().contains(format.toLatin1())) {
402#endif // NOSVG
403            format = DEF_GRAPH_IMAGE_FORMAT;
404            settings->remove("Output/GraphImageFormat");
405        }
406
407        if (!graph.isNull()) {
408            imgdata = generateImage(format);
409            if (imgdata.isEmpty()) {
410                QApplication::restoreOverrideCursor();
411                return;
412            }
413            if (embed) {
414                QString fmt = format;
415                if (format == "svg")
416                    fmt.append("+xml");
417                html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""),
418                             QString("<img src=\"data:image/%1;base64,%2\" alt=\"%3\"")
419                             .arg(fmt, toWrappedBase64(imgdata), tr("Solution Graph")));
420            } else {
421                html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""),
422                             QString("<img src=\"%1\" alt=\"%2\"")
423                             .arg(fi.completeBaseName() + "." + format, tr("Solution Graph")));
424            }
425        }
426
427        // Saving solution text as HTML
428QTextStream ts(&file);
429        ts.setCodec(QTextCodec::codecForName("UTF-8"));
430        QString boundary = QString("------=multipart_boundary.%1").arg(qHash(selectedFile));
431        if (mhtml) {
432            ts << "Content-Type: multipart/related; start=<[email protected]>; boundary=\""
433               << boundary << "\"; type=\"text/html\"" << endl;
434            boundary.prepend("--");
435            ts << "MIME-Version: 1.0" << endl;
436            ts << endl;
437            ts << boundary << endl;
438            ts << "Content-Disposition: inline; filename=" << fi.completeBaseName() << ".html" << endl;
439            ts << "Content-Type: text/html; name=" << fi.completeBaseName() << ".html" << endl;
440            ts << "Content-ID: <[email protected]>" << endl;
441            ts << "Content-Location: " << fi.completeBaseName() << ".html" << endl;
442            ts << "Content-Transfer-Encoding: 8bit" << endl;
443            ts << endl;
444        }
445        ts << html << endl;
446        if (mhtml) {
447            ts << endl << boundary << endl;
448            ts << "Content-Disposition: inline; filename=" << fi.completeBaseName() << "." << format << endl;
449            ts << "Content-Type: image/" << format;
450            if (format == "svg")
451                ts << "+xml";
452            ts << "; name=" << fi.completeBaseName() << "." << format  << endl;
453            ts << "Content-Location: " << fi.completeBaseName() << "." << format << endl;
454            ts << "Content-Transfer-Encoding: Base64" << endl;
455            ts << endl;
456            ts << toWrappedBase64(imgdata) << endl;
457            ts << endl << boundary << "--" << endl;
458        }
459        file.close();
460        if (!embed && !mhtml) {
461            QFile img(fi.path() + "/" + fi.completeBaseName() + "." + format);
462            if (!img.open(QFile::WriteOnly)) {
463                QApplication::restoreOverrideCursor();
464                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(img.errorString()));
465                return;
466            }
467            if (img.write(imgdata) != imgdata.size()) {
468                QApplication::restoreOverrideCursor();
469                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(img.errorString()));
470            }
471            img.close();
472        }
473    } else {
474QTextDocumentWriter dw(selectedFile);
475        if (!selectedFile.endsWith(".odt",Qt::CaseInsensitive))
476            dw.setFormat("plaintext");
477        if (!dw.write(solutionText->document()))
478            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(dw.device()->errorString()));
479    }
480    QApplication::restoreOverrideCursor();
481}
482
483#ifndef QT_NO_PRINTER
484void MainWindow::actionFilePrintPreviewTriggered()
485{
486QPrintPreviewDialog ppd(printer, this);
487    connect(&ppd,SIGNAL(paintRequested(QPrinter *)),SLOT(printPreview(QPrinter *)));
488    ppd.exec();
489
490qreal l, t, r, b;
491    printer->getPageMargins(&l, &t, &r, &b, QPrinter::Millimeter);
492
493    settings->beginGroup("Printer");
494    settings->setValue("PaperSize", printer->paperSize());
495    if (printer->paperSize() == QPrinter::Custom) {
496QSizeF size(printer->paperSize(QPrinter::Millimeter));
497        settings->setValue("PaperWidth", size.width());
498        settings->setValue("PaperHeight", size.height());
499    }
500    settings->setValue("PageOrientation", printer->orientation());
501    settings->setValue("MarginLeft", l);
502    settings->setValue("MarginTop", t);
503    settings->setValue("MarginRight", r);
504    settings->setValue("MarginBottom", b);
505    settings->endGroup();
506}
507
508void MainWindow::actionFilePageSetupTriggered()
509{
510QPageSetupDialog psd(printer, this);
511    if (psd.exec() != QDialog::Accepted)
512        return;
513
514qreal l, t, r ,b;
515    printer->getPageMargins(&l, &t, &r, &b, QPrinter::Millimeter);
516
517    settings->beginGroup("Printer");
518    settings->setValue("PaperSize", printer->paperSize());
519    if (printer->paperSize() == QPrinter::Custom) {
520QSizeF size(printer->paperSize(QPrinter::Millimeter));
521        settings->setValue("PaperWidth", size.width());
522        settings->setValue("PaperHeight", size.height());
523    }
524    settings->setValue("PageOrientation", printer->orientation());
525    settings->setValue("MarginLeft", l);
526    settings->setValue("MarginTop", t);
527    settings->setValue("MarginRight", r);
528    settings->setValue("MarginBottom", b);
529    settings->endGroup();
530}
531
532void MainWindow::actionFilePrintTriggered()
533{
534QPrintDialog pd(printer,this);
535    if (pd.exec() != QDialog::Accepted)
536        return;
537    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
538    solutionText->print(printer);
539    QApplication::restoreOverrideCursor();
540}
541#endif // QT_NO_PRINTER
542
543void MainWindow::actionSettingsPreferencesTriggered()
544{
545SettingsDialog sd(this);
546#ifdef Q_OS_SYMBIAN
547    sd.setWindowState(Qt::WindowMaximized);
548#endif
549    if (sd.exec() != QDialog::Accepted)
550        return;
551    if (sd.colorChanged() || sd.fontChanged()) {
552        if (!solutionText->document()->isEmpty() && sd.colorChanged())
553            QMessageBox::information(this, tr("Settings Changed"), tr("You have changed color settings.\nThey will be applied to the next solution output."));
554        initDocStyleSheet();
555    }
556    if (sd.translucencyChanged() != 0)
557        toggleTranclucency(sd.translucencyChanged() == 1);
558}
559
560void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
561{
562    if (checked) {
563        settings->remove("Language");
564        QMessageBox::information(this, tr("Language change"), tr("Language will be autodetected on the next %1 start.").arg(QCoreApplication::applicationName()));
565    } else
566        settings->setValue("Language", groupSettingsLanguageList->checkedAction()->data().toString());
567}
568
569void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
570{
571#ifndef Q_WS_MAEMO_5
572    if (actionSettingsLanguageAutodetect->isChecked())
573        actionSettingsLanguageAutodetect->trigger();
574#endif
575bool untitled = (fileName == tr("Untitled") + ".tspt");
576    if (loadLanguage(action->data().toString())) {
577        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
578        settings->setValue("Language",action->data().toString());
579        retranslateUi();
580        if (untitled)
581            setFileName();
582#ifndef HANDHELD
583        if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool())  {
584            toggleStyle(labelVariant, true);
585            toggleStyle(labelCities, true);
586        }
587#endif
588        QApplication::restoreOverrideCursor();
589        if (!solutionText->document()->isEmpty())
590            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."));
591    }
592}
593
594void MainWindow::actionSettingsStyleSystemTriggered(bool checked)
595{
596    if (checked) {
597        settings->remove("Style");
598        QMessageBox::information(this, tr("Style Change"), tr("To apply the default style you need to restart %1.").arg(QCoreApplication::applicationName()));
599    } else {
600        settings->setValue("Style", groupSettingsStyleList->checkedAction()->text());
601    }
602}
603
604void MainWindow::groupSettingsStyleListTriggered(QAction *action)
605{
606QStyle *s = QStyleFactory::create(action->text());
607    if (s != NULL) {
608        QApplication::setStyle(s);
609        settings->setValue("Style", action->text());
610        actionSettingsStyleSystem->setChecked(false);
611    }
612}
613
614#ifndef HANDHELD
615void MainWindow::actionSettingsToolbarsConfigureTriggered()
616{
617QtToolBarDialog dlg(this);
618    dlg.setToolBarManager(toolBarManager);
619    dlg.exec();
620QToolButton *tb = static_cast<QToolButton *>(toolBarMain->widgetForAction(actionFileSave));
621    if (tb != NULL) {
622        tb->setMenu(menuFileSaveAs);
623        tb->setPopupMode(QToolButton::MenuButtonPopup);
624        tb->resize(tb->sizeHint());
625    }
626
627    loadToolbarList();
628}
629#endif // HANDHELD
630
631void MainWindow::actionHelpCheck4UpdatesTriggered()
632{
633    if (!hasUpdater()) {
634        QMessageBox::warning(this, tr("Unsupported Feature"), tr("Sorry, but this feature is not supported on your\nplatform or support for it was not installed."));
635        return;
636    }
637
638    check4Updates();
639}
640
641void MainWindow::actionHelpAboutTriggered()
642{
643    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
644
645QString title;
646    title += QString("<b>%1</b><br>").arg(QCoreApplication::applicationName());
647    title += QString("%1: <b>%2</b><br>").arg(tr("Version"), QCoreApplication::applicationVersion());
648#ifndef HANDHELD
649    title += QString("<b>&copy; 2007-%1 <a href=\"http://%2/\">%3</a></b><br>").arg(QDate::currentDate().toString("yyyy"), QCoreApplication::organizationDomain(), QCoreApplication::organizationName());
650#endif // HANDHELD
651    title += QString("<b><a href=\"http://tspsg.info/\">http://tspsg.info/</a></b>");
652
653QString about;
654    about += QString("%1: <b>%2</b><br>").arg(tr("Target OS (ARCH)"), PLATFROM);
655    about += QString("%1:<br>").arg(tr("Qt library"));
656    about += QString("&nbsp;&nbsp;&nbsp;&nbsp;%1: <b>%2</b><br>").arg(tr("Build time"), QT_VERSION_STR);
657    about += QString("&nbsp;&nbsp;&nbsp;&nbsp;%1: <b>%2</b><br>").arg(tr("Runtime"), qVersion());
658    about.append(QString("%1: <b>%2x%3</b><br>").arg(tr("Logical screen DPI")).arg(logicalDpiX()).arg(logicalDpiY()));
659QString tag;
660#ifdef REVISION_STR
661    tag = tr(" from git commit <b>%1</b>").arg(QString(REVISION_STR).left(10));
662#endif
663    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>";
664    about += QString("%1: <b>%2</b><br>").arg(tr("Algorithm"), TSPSolver::CTSPSolver::getVersionId());
665    about += "<br>";
666    about += tr("This program is free software: you can redistribute it and/or modify<br>\n"
667        "it under the terms of the GNU General Public License as published by<br>\n"
668        "the Free Software Foundation, either version 3 of the License, or<br>\n"
669        "(at your option) any later version.<br>\n"
670        "<br>\n"
671        "This program is distributed in the hope that it will be useful,<br>\n"
672        "but WITHOUT ANY WARRANTY; without even the implied warranty of<br>\n"
673        "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>\n"
674        "GNU General Public License for more details.<br>\n"
675        "<br>\n"
676        "You should have received a copy of the GNU General Public License<br>\n"
677        "along with TSPSG.  If not, see <a href=\"http://www.gnu.org/licenses/\">www.gnu.org/licenses/</a>.");
678
679QString credits;
680    credits += tr("%1 was created using <b>Qt&nbsp;framework</b> licensed "
681        "under the terms of the GNU Lesser General Public License,<br>\n"
682        "see <a href=\"http://qt.nokia.com/\">qt.nokia.com</a><br>\n"
683        "<br>\n"
684        "Most icons used in %1 are part of <b>Oxygen&nbsp;Icons</b> project "
685        "licensed according to the GNU Lesser General Public License,<br>\n"
686        "see <a href=\"http://www.oxygen-icons.org/\">www.oxygen-icons.org</a><br>\n"
687        "<br>\n"
688        "Country flag icons used in %1 are part of the free "
689        "<b>Flag&nbsp;Icons</b> collection created by <b>IconDrawer</b>,<br>\n"
690        "see <a href=\"http://www.icondrawer.com/\">www.icondrawer.com</a><br>\n"
691        "<br>\n"
692        "%1 comes with the default \"embedded\" font <b>DejaVu&nbsp;LGC&nbsp;Sans&nbsp;"
693        "Mono</b> from the <b>DejaVu fonts</b> licensed under a Free license</a>,<br>\n"
694        "see <a href=\"http://dejavu-fonts.org/\">dejavu-fonts.org</a>")
695            .arg("TSPSG");
696
697QFile f(":/files/COPYING");
698    f.open(QIODevice::ReadOnly);
699
700QString translation = QCoreApplication::translate("--------", "AUTHORS %1", "Please, provide translator credits here. %1 will be replaced with VERSION");
701    if ((translation != "AUTHORS %1") && (translation.contains("%1"))) {
702QString about = QCoreApplication::translate("--------", "VERSION", "Please, provide your translation version here.");
703        if (about != "VERSION")
704            translation = translation.arg(about);
705    }
706
707QDialog *dlg = new QDialog(this);
708QLabel *lblIcon = new QLabel(dlg),
709    *lblTitle = new QLabel(dlg);
710#ifdef HANDHELD
711QLabel *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);
712#endif // HANDHELD
713QTabWidget *tabs = new QTabWidget(dlg);
714QTextBrowser *txtAbout = new QTextBrowser(dlg);
715QTextBrowser *txtLicense = new QTextBrowser(dlg);
716QTextBrowser *txtCredits = new QTextBrowser(dlg);
717QVBoxLayout *vb = new QVBoxLayout();
718QHBoxLayout *hb1 = new QHBoxLayout(),
719    *hb2 = new QHBoxLayout();
720QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok, Qt::Horizontal, dlg);
721
722    lblTitle->setOpenExternalLinks(true);
723    lblTitle->setText(title);
724    lblTitle->setAlignment(Qt::AlignTop);
725    lblTitle->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
726#ifndef HANDHELD
727    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()));
728#endif // HANDHELD
729
730    lblIcon->setPixmap(QPixmap(":/images/tspsg.png").scaledToHeight(lblTitle->sizeHint().height(), Qt::SmoothTransformation));
731    lblIcon->setAlignment(Qt::AlignVCenter);
732#ifndef HANDHELD
733    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()));
734#endif // HANDHELD
735
736    hb1->addWidget(lblIcon);
737    hb1->addWidget(lblTitle);
738
739    txtAbout->setWordWrapMode(QTextOption::NoWrap);
740    txtAbout->setOpenExternalLinks(true);
741    txtAbout->setHtml(about);
742    txtAbout->moveCursor(QTextCursor::Start);
743    txtAbout->setFrameShape(QFrame::NoFrame);
744
745//      txtCredits->setWordWrapMode(QTextOption::NoWrap);
746    txtCredits->setOpenExternalLinks(true);
747    txtCredits->setHtml(credits);
748    txtCredits->moveCursor(QTextCursor::Start);
749    txtCredits->setFrameShape(QFrame::NoFrame);
750
751    txtLicense->setWordWrapMode(QTextOption::NoWrap);
752    txtLicense->setOpenExternalLinks(true);
753    txtLicense->setText(f.readAll());
754    txtLicense->moveCursor(QTextCursor::Start);
755    txtLicense->setFrameShape(QFrame::NoFrame);
756
757    bb->button(QDialogButtonBox::Ok)->setCursor(QCursor(Qt::PointingHandCursor));
758    bb->button(QDialogButtonBox::Ok)->setIcon(GET_ICON("dialog-ok"));
759
760    hb2->addWidget(bb);
761
762#ifdef Q_OS_WINCE_WM
763    vb->setMargin(3);
764#endif // Q_OS_WINCE_WM
765    vb->addLayout(hb1);
766#ifdef HANDHELD
767    vb->addWidget(lblSubTitle);
768#endif // HANDHELD
769
770    tabs->addTab(txtAbout, tr("About"));
771    tabs->addTab(txtLicense, tr("License"));
772    tabs->addTab(txtCredits, tr("Credits"));
773    if (translation != "AUTHORS %1") {
774QTextBrowser *txtTranslation = new QTextBrowser(dlg);
775//              txtTranslation->setWordWrapMode(QTextOption::NoWrap);
776        txtTranslation->setOpenExternalLinks(true);
777        txtTranslation->setText(translation);
778        txtTranslation->moveCursor(QTextCursor::Start);
779        txtTranslation->setFrameShape(QFrame::NoFrame);
780
781        tabs->addTab(txtTranslation, tr("Translation"));
782    }
783#ifndef HANDHELD
784    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()));
785#endif // HANDHELD
786
787    vb->addWidget(tabs);
788    vb->addLayout(hb2);
789
790    dlg->setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowCloseButtonHint);
791    dlg->setWindowTitle(tr("About %1").arg(QCoreApplication::applicationName()));
792    dlg->setWindowIcon(GET_ICON("help-about"));
793
794    dlg->setLayout(vb);
795
796    connect(bb, SIGNAL(accepted()), dlg, SLOT(accept()));
797
798#ifndef HANDHELD
799    // Adding some eyecandy
800    if (QtWin::isCompositionEnabled())  {
801        QtWin::enableBlurBehindWindow(dlg, true);
802    }
803#endif // HANDHELD
804
805#ifndef HANDHELD
806    dlg->resize(450, 350);
807#elif defined(Q_OS_SYMBIAN)
808    dlg->setWindowState(Qt::WindowMaximized);
809#endif
810    QApplication::restoreOverrideCursor();
811
812    dlg->exec();
813
814    delete dlg;
815}
816
817void MainWindow::buttonBackToTaskClicked()
818{
819    tabWidget->setCurrentIndex(0);
820}
821
822void MainWindow::buttonRandomClicked()
823{
824    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
825    tspmodel->randomize();
826    QApplication::restoreOverrideCursor();
827}
828
829void MainWindow::buttonSolveClicked()
830{
831    TSPSolver::TMatrix matrix;
832    QList<double> row;
833    int n = spinCities->value();
834    bool ok;
835    for (int r = 0; r < n; r++) {
836        row.clear();
837        for (int c = 0; c < n; c++) {
838            row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
839            if (!ok) {
840                QMessageBox::critical(this, tr("Data error"), tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1));
841                return;
842            }
843        }
844        matrix.append(row);
845    }
846
847QProgressDialog pd(this);
848QProgressBar *pb = new QProgressBar(&pd);
849    pb->setAlignment(Qt::AlignCenter);
850    pb->setFormat(tr("%v of %1 parts found").arg(n));
851    pd.setBar(pb);
852QPushButton *cancel = new QPushButton(&pd);
853    cancel->setIcon(GET_ICON("dialog-cancel"));
854    cancel->setText(QCoreApplication::translate("QDialogButtonBox", "Cancel", "No need to translate this. The translation will be taken from Qt translation files."));
855    pd.setCancelButton(cancel);
856    pd.setMaximum(n);
857    pd.setAutoReset(false);
858    pd.setLabelText(tr("Calculating optimal route..."));
859    pd.setWindowTitle(tr("Solution Progress"));
860    pd.setWindowModality(Qt::ApplicationModal);
861    pd.setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
862    pd.show();
863
864#ifdef Q_OS_WIN32
865HRESULT hr = CoCreateInstance(CLSID_TaskbarList, NULL, CLSCTX_INPROC_SERVER, IID_ITaskbarList3, (LPVOID*)&tl);
866    if (SUCCEEDED(hr)) {
867        hr = tl->HrInit();
868        if (FAILED(hr)) {
869            tl->Release();
870            tl = NULL;
871        } else {
872            tl->SetProgressValue(HWND(winId()), 0, n * 2);
873        }
874    }
875#endif
876
877    TSPSolver::CTSPSolver solver;
878    solver.setCleanupOnCancel(false);
879    connect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
880    connect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
881#ifdef Q_OS_WIN32
882    if (tl != NULL)
883        connect(&solver, SIGNAL(routePartFound(int)), SLOT(solverRoutePartFound(int)));
884#endif
885    TSPSolver::SStep *root = solver.solve(n, matrix);
886#ifdef Q_OS_WIN32
887    if (tl != NULL)
888        disconnect(&solver, SIGNAL(routePartFound(int)), this, SLOT(solverRoutePartFound(int)));
889#endif
890    disconnect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
891    disconnect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
892    if (!root) {
893        pd.reset();
894        if (!solver.wasCanceled()) {
895#ifdef Q_OS_WIN32
896            if (tl != NULL) {
897                tl->SetProgressState(HWND(winId()), TBPF_ERROR);
898            }
899#endif
900            QApplication::alert(this);
901            QMessageBox::warning(this, tr("Solution Result"), tr("Unable to find a solution.\nMaybe, this task has no solution."));
902        }
903        pd.setLabelText(tr("Memory cleanup..."));
904        pd.setMaximum(0);
905        pd.setCancelButton(NULL);
906        pd.show();
907#ifdef Q_OS_WIN32
908        if (tl != NULL)
909            tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
910#endif
911        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
912
913#ifndef QT_NO_CONCURRENT
914        QFuture<void> f = QtConcurrent::run(&solver, &TSPSolver::CTSPSolver::cleanup, false);
915        while (!f.isFinished()) {
916            QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
917        }
918#else
919        solver.cleanup(true);
920#endif
921        pd.reset();
922#ifdef Q_OS_WIN32
923        if (tl != NULL) {
924            tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
925            tl->Release();
926            tl = NULL;
927        }
928#endif
929        return;
930    }
931    pb->setFormat(tr("Generating header"));
932    pd.setLabelText(tr("Generating solution output..."));
933    pd.setMaximum(solver.getTotalSteps() + 1);
934    pd.setValue(0);
935
936#ifdef Q_OS_WIN32
937    if (tl != NULL)
938        tl->SetProgressValue(HWND(winId()), spinCities->value(), spinCities->value() + solver.getTotalSteps() + 1);
939#endif
940
941    solutionText->clear();
942    solutionText->setDocumentTitle(tr("Solution of Variant #%1 Task").arg(spinVariant->value()));
943
944QPainter pic;
945bool dograph = settings->value("Output/GenerateGraph", DEF_GENERATE_GRAPH).toBool();
946    if (dograph) {
947        pic.begin(&graph);
948        pic.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
949QFont font = qvariant_cast<QFont>(settings->value("Output/Font", QFont(DEF_FONT_FACE)));
950        font.setStyleHint(QFont::TypeWriter);
951        // Font size in pixels = graph node radius / 2.75.
952        // See MainWindow::drawNode() for graph node radius calcualtion description.
953#ifndef Q_OS_SYMBIAN
954        font.setPixelSize(logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5 / 2.75);
955#else
956        // Also, see again MainWindow::drawNode() for why is additional 1.3 divider added in Symbian.
957        font.setPixelSize(logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5 / 2.75 / 1.3);
958#endif
959        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
960            font.setWeight(QFont::DemiBold);
961            font.setPixelSize(font.pixelSize() * HQ_FACTOR);
962        }
963        pic.setFont(font);
964        pic.setBrush(QBrush(QColor(Qt::white)));
965        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
966QPen pen = pic.pen();
967            pen.setWidth(HQ_FACTOR);
968            pic.setPen(pen);
969        }
970        pic.setBackgroundMode(Qt::OpaqueMode);
971    } else {
972        graph = QPicture();
973    }
974
975QTextDocument *doc = solutionText->document();
976QTextCursor cur(doc);
977
978    cur.beginEditBlock();
979    cur.setBlockFormat(fmt_paragraph);
980    cur.insertText(tr("Variant #%1 Task").arg(spinVariant->value()), fmt_default);
981    cur.insertBlock(fmt_paragraph);
982    cur.insertText(tr("Task:"), fmt_default);
983    outputMatrix(cur, matrix);
984    if (dograph) {
985#ifdef _T_T_L_
986        _b_ _i_ _z_ _a_ _r_ _r_ _e_
987#endif
988        drawNode(pic, 0);
989    }
990    cur.insertHtml("<hr>");
991    cur.insertBlock(fmt_paragraph);
992    int imgpos = cur.position();
993    cur.insertText(tr("Variant #%1 Solution").arg(spinVariant->value()), fmt_default);
994    cur.endEditBlock();
995
996    TSPSolver::SStep *step = root;
997    int c = n = 1;
998    pb->setFormat(tr("Generating step %v"));
999    while ((step->next != TSPSolver::SStep::NoNextStep) && (c < spinCities->value())) {
1000        if (pd.wasCanceled()) {
1001            pd.setLabelText(tr("Memory cleanup..."));
1002            pd.setMaximum(0);
1003            pd.setCancelButton(NULL);
1004            pd.show();
1005            QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1006#ifdef Q_OS_WIN32
1007            if (tl != NULL)
1008                tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
1009#endif
1010#ifndef QT_NO_CONCURRENT
1011            QFuture<void> f = QtConcurrent::run(&solver, &TSPSolver::CTSPSolver::cleanup, false);
1012            while (!f.isFinished()) {
1013                QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1014            }
1015#else
1016            solver.cleanup(true);
1017#endif
1018            solutionText->clear();
1019            toggleSolutionActions(false);
1020#ifdef Q_OS_WIN32
1021            if (tl != NULL) {
1022                tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
1023                tl->Release();
1024                tl = NULL;
1025            }
1026#endif
1027            return;
1028        }
1029        pd.setValue(n);
1030#ifdef Q_OS_WIN32
1031        if (tl != NULL)
1032            tl->SetProgressValue(HWND(winId()), spinCities->value() + n, spinCities->value() + solver.getTotalSteps() + 1);
1033#endif
1034
1035        cur.beginEditBlock();
1036        cur.insertBlock(fmt_paragraph);
1037        cur.insertText(tr("Step #%1").arg(n), fmt_default);
1038        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())))) {
1039            outputMatrix(cur, *step);
1040        }
1041        if (step->alts.empty())
1042            cur.insertBlock(fmt_lastparagraph);
1043        else
1044            cur.insertBlock(fmt_paragraph);
1045        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);
1046        if (!step->alts.empty()) {
1047            TSPSolver::SStep::SCandidate cand;
1048            QString alts;
1049            foreach(cand, step->alts) {
1050                if (!alts.isEmpty())
1051                    alts += ", ";
1052                alts += tr("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
1053            }
1054            cur.insertBlock(fmt_lastparagraph);
1055            cur.insertText(tr("%n alternate candidate(s) for branching: %1.", "", step->alts.count()).arg(alts), fmt_altlist);
1056        }
1057        cur.endEditBlock();
1058
1059        if (dograph) {
1060            if (step->prNode != NULL)
1061                drawNode(pic, n, false, step->prNode);
1062            if (step->plNode != NULL)
1063                drawNode(pic, n, true, step->plNode);
1064        }
1065        n++;
1066
1067        if (step->next == TSPSolver::SStep::RightBranch) {
1068            c++;
1069            step = step->prNode;
1070        } else if (step->next == TSPSolver::SStep::LeftBranch) {
1071            step = step->plNode;
1072        } else
1073            break;
1074    }
1075    pb->setFormat(tr("Generating footer"));
1076    pd.setValue(n);
1077#ifdef Q_OS_WIN32
1078    if (tl != NULL)
1079        tl->SetProgressValue(HWND(winId()), spinCities->value() + n, spinCities->value() + solver.getTotalSteps() + 1);
1080#endif
1081
1082    cur.beginEditBlock();
1083    cur.insertBlock(fmt_paragraph);
1084    if (solver.isOptimal())
1085        cur.insertText(tr("Optimal path:"), fmt_default);
1086    else
1087        cur.insertText(tr("Resulting path:"), fmt_default);
1088
1089    cur.insertBlock(fmt_paragraph);
1090    cur.insertText("  " + solver.getSortedPath(tr("City %1")));
1091
1092    if (solver.isOptimal())
1093        cur.insertBlock(fmt_paragraph);
1094    else
1095        cur.insertBlock(fmt_lastparagraph);
1096    if (isInteger(step->price))
1097        cur.insertHtml("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
1098    else
1099        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>");
1100    if (!solver.isOptimal()) {
1101        cur.insertBlock(fmt_paragraph);
1102        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>");
1103    }
1104    cur.endEditBlock();
1105
1106    if (dograph) {
1107        pic.end();
1108
1109        QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
1110        i.fill(QColor(255, 255, 255, 0).rgba());
1111        pic.begin(&i);
1112        pic.drawPicture(1, 1, graph);
1113        pic.end();
1114        doc->addResource(QTextDocument::ImageResource, QUrl("tspsg://graph.pic"), i);
1115
1116QTextImageFormat img;
1117        img.setName("tspsg://graph.pic");
1118        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
1119            img.setWidth(i.width() / HQ_FACTOR);
1120            img.setHeight(i.height() / HQ_FACTOR);
1121        } else {
1122            img.setWidth(i.width());
1123            img.setHeight(i.height());
1124        }
1125
1126        cur.setPosition(imgpos);
1127        cur.insertImage(img, QTextFrameFormat::FloatRight);
1128    }
1129
1130    if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
1131        // Scrolling to the end of the text.
1132        solutionText->moveCursor(QTextCursor::End);
1133    } else
1134        solutionText->moveCursor(QTextCursor::Start);
1135
1136    pd.setLabelText(tr("Memory cleanup..."));
1137    pd.setMaximum(0);
1138    pd.setCancelButton(NULL);
1139    QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1140#ifdef Q_OS_WIN32
1141    if (tl != NULL)
1142        tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
1143#endif
1144#ifndef QT_NO_CONCURRENT
1145    QFuture<void> f = QtConcurrent::run(&solver, &TSPSolver::CTSPSolver::cleanup, false);
1146    while (!f.isFinished()) {
1147        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1148    }
1149#else
1150    solver.cleanup(true);
1151#endif
1152    toggleSolutionActions();
1153    tabWidget->setCurrentIndex(1);
1154#ifdef Q_OS_WIN32
1155    if (tl != NULL) {
1156        tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
1157        tl->Release();
1158        tl = NULL;
1159    }
1160#endif
1161
1162    pd.reset();
1163    QApplication::alert(this, 3000);
1164}
1165
1166void MainWindow::dataChanged()
1167{
1168    setWindowModified(true);
1169}
1170
1171void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
1172{
1173    setWindowModified(true);
1174    if (settings->value("Autosize", DEF_AUTOSIZE).toBool()) {
1175        for (int k = tl.row(); k <= br.row(); k++)
1176            taskView->resizeRowToContents(k);
1177        for (int k = tl.column(); k <= br.column(); k++)
1178            taskView->resizeColumnToContents(k);
1179    }
1180}
1181
1182#ifdef Q_OS_WINCE_WM
1183void MainWindow::changeEvent(QEvent *ev)
1184{
1185    if ((ev->type() == QEvent::ActivationChange) && isActiveWindow())
1186        desktopResized(0);
1187
1188    QWidget::changeEvent(ev);
1189}
1190
1191void MainWindow::desktopResized(int screen)
1192{
1193    if ((screen != 0) || !isActiveWindow())
1194        return;
1195
1196QRect availableGeometry = QApplication::desktop()->availableGeometry(0);
1197    if (currentGeometry != availableGeometry) {
1198        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1199        /*!
1200         * \hack HACK: This hack checks whether \link QDesktopWidget::availableGeometry() availableGeometry()\endlink's \c top + \c hegiht = \link QDesktopWidget::screenGeometry() screenGeometry()\endlink's \c height.
1201         *  If \c true, the window gets maximized. If we used \c setGeometry() in this case, the bottom of the
1202         *  window would end up being behind the soft buttons. Is this a bug in Qt or Windows Mobile?
1203         */
1204        if ((availableGeometry.top() + availableGeometry.height()) == QApplication::desktop()->screenGeometry().height()) {
1205            setWindowState(windowState() | Qt::WindowMaximized);
1206        } else {
1207            if (windowState() & Qt::WindowMaximized)
1208                setWindowState(windowState() ^ Qt::WindowMaximized);
1209            setGeometry(availableGeometry);
1210        }
1211        currentGeometry = availableGeometry;
1212        QApplication::restoreOverrideCursor();
1213    }
1214}
1215#endif // Q_OS_WINCE_WM
1216
1217void MainWindow::numCitiesChanged(int nCities)
1218{
1219    blockSignals(true);
1220    spinCities->setValue(nCities);
1221    blockSignals(false);
1222}
1223
1224#ifndef QT_NO_PRINTER
1225void MainWindow::printPreview(QPrinter *printer)
1226{
1227    solutionText->print(printer);
1228}
1229#endif // QT_NO_PRINTER
1230
1231#ifdef Q_OS_WIN32
1232void MainWindow::solverRoutePartFound(int n)
1233{
1234    tl->SetProgressValue(HWND(winId()), n, spinCities->value() * 2);
1235}
1236#endif // Q_OS_WIN32
1237
1238void MainWindow::spinCitiesValueChanged(int n)
1239{
1240    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1241int count = tspmodel->numCities();
1242    tspmodel->setNumCities(n);
1243    if ((n > count) && settings->value("Autosize", DEF_AUTOSIZE).toBool())
1244        for (int k = count; k < n; k++) {
1245            taskView->resizeColumnToContents(k);
1246            taskView->resizeRowToContents(k);
1247        }
1248    QApplication::restoreOverrideCursor();
1249}
1250
1251void MainWindow::check4Updates(bool silent)
1252{
1253#ifdef Q_OS_WIN32
1254    if (silent)
1255        QProcess::startDetached("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\" -silentcheck");
1256    else {
1257        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1258        QProcess::execute("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\"");
1259        QApplication::restoreOverrideCursor();
1260    }
1261#else
1262    Q_UNUSED(silent)
1263#endif
1264    settings->setValue("Check4Updates/LastAttempt", QDate::currentDate().toString(Qt::ISODate));
1265}
1266
1267void MainWindow::closeEvent(QCloseEvent *ev)
1268{
1269    if (!maybeSave()) {
1270        ev->ignore();
1271        return;
1272    }
1273    if (!settings->value("SettingsReset", false).toBool()) {
1274        settings->setValue("NumCities", spinCities->value());
1275
1276        // Saving Main Window state
1277#ifndef HANDHELD
1278        if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
1279            settings->beginGroup("MainWindow");
1280            settings->setValue("Geometry", saveGeometry());
1281            settings->setValue("State", saveState());
1282            settings->setValue("Toolbars", toolBarManager->saveState());
1283            settings->endGroup();
1284        }
1285#else
1286        settings->setValue("MainWindow/ToolbarVisible", toolBarMain->isVisible());
1287#endif // HANDHELD
1288    } else {
1289        settings->remove("SettingsReset");
1290    }
1291
1292    QMainWindow::closeEvent(ev);
1293}
1294
1295void MainWindow::dragEnterEvent(QDragEnterEvent *ev)
1296{
1297    if (ev->mimeData()->hasUrls() && (ev->mimeData()->urls().count() == 1)) {
1298QFileInfo fi(ev->mimeData()->urls().first().toLocalFile());
1299        if ((fi.suffix() == "tspt") || (fi.suffix() == "zkt"))
1300            ev->acceptProposedAction();
1301    }
1302}
1303
1304void MainWindow::drawNode(QPainter &pic, int nstep, bool left, TSPSolver::SStep *step)
1305{
1306qreal r; // Radius of graph node
1307    // We calculate r from the full graph width in centimeters:
1308    //   r = width in pixels / 4.5.
1309    //   width in pixels = DPI * width in inches.
1310    //   width in inches = width in cm / cm in inch.
1311    r = logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5;
1312    if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool())
1313        r *= HQ_FACTOR;
1314#ifdef Q_OS_SYMBIAN
1315    /*! \hack HACK: Solution graph on Symbian is visually larger than on
1316     *   Windows Mobile. This coefficient makes it about the same size.
1317     */
1318    r /= 1.3;
1319#endif
1320
1321qreal x, y;
1322    if (step != NULL)
1323        x = left ? r : r * 3.5;
1324    else
1325        x = r * 2.25;
1326    y = r * (3 * nstep + 1);
1327
1328#ifdef _T_T_L_
1329    if (nstep == -481124) {
1330        _t_t_l_(pic, r, x);
1331        return;
1332    }
1333#endif
1334
1335    pic.drawEllipse(QPointF(x, y), r, r);
1336
1337    if (step != NULL) {
1338QFont font;
1339        if (left) {
1340            font = pic.font();
1341            font.setStrikeOut(true);
1342            pic.setFont(font);
1343        }
1344        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");
1345        if (left) {
1346            font.setStrikeOut(false);
1347            pic.setFont(font);
1348        }
1349        if (step->price != INFINITY) {
1350            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()));
1351        } else {
1352            pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, "\n"INFSTR);
1353        }
1354    } else {
1355        pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("Root"));
1356    }
1357
1358    if (nstep == 1) {
1359        pic.drawLine(QPointF(x, y - r), QPointF(r * 2.25, y - 2 * r));
1360    } else if (nstep > 1) {
1361        pic.drawLine(QPointF(x, y - r), QPointF((step->pNode->pNode->next == TSPSolver::SStep::RightBranch) ? r * 3.5 : r, y - 2 * r));
1362    }
1363
1364}
1365
1366void MainWindow::dropEvent(QDropEvent *ev)
1367{
1368    if (maybeSave() && tspmodel->loadTask(ev->mimeData()->urls().first().toLocalFile())) {
1369        setFileName(ev->mimeData()->urls().first().toLocalFile());
1370        tabWidget->setCurrentIndex(0);
1371        setWindowModified(false);
1372        solutionText->clear();
1373        toggleSolutionActions(false);
1374
1375        ev->setDropAction(Qt::CopyAction);
1376        ev->accept();
1377    }
1378}
1379
1380QByteArray MainWindow::generateImage(const QString &format)
1381{
1382    if (graph.isNull())
1383        return QByteArray();
1384
1385    QByteArray data;
1386    QBuffer buf(&data);
1387    // Saving solution graph in SVG or supported raster format (depending on settings and SVG support)
1388#if !defined(NOSVG)
1389    if (format == "svg") {
1390        QSvgGenerator svg;
1391        svg.setSize(QSize(graph.width() + 2, graph.height() + 2));
1392        svg.setResolution(graph.logicalDpiX());
1393        svg.setOutputDevice(&buf);
1394        svg.setTitle(tr("Solution Graph"));
1395        svg.setDescription(tr("Generated with %1").arg(QCoreApplication::applicationName()));
1396        QPainter p;
1397        p.begin(&svg);
1398        p.drawPicture(1, 1, graph);
1399        p.end();
1400    } else {
1401#endif // NOSVG
1402        QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
1403        i.fill(0x00FFFFFF);
1404        QPainter p;
1405        p.begin(&i);
1406        p.drawPicture(1, 1, graph);
1407        p.end();
1408        QImageWriter pic;
1409        pic.setDevice(&buf);
1410        pic.setFormat(format.toLatin1());
1411        if (pic.supportsOption(QImageIOHandler::Description)) {
1412            pic.setText("Title", "Solution Graph");
1413            pic.setText("Software", QCoreApplication::applicationName());
1414        }
1415        if (format == "png")
1416            pic.setQuality(5);
1417        else if (format == "jpeg")
1418            pic.setQuality(80);
1419        if (!pic.write(i)) {
1420            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
1421            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(pic.errorString()));
1422            QApplication::restoreOverrideCursor();
1423            return QByteArray();
1424        }
1425#if !defined(NOSVG)
1426    }
1427#endif // NOSVG
1428    return data;
1429}
1430
1431void MainWindow::initDocStyleSheet()
1432{
1433    solutionText->document()->setDefaultFont(qvariant_cast<QFont>(settings->value("Output/Font", QFont(DEF_FONT_FACE, DEF_FONT_SIZE))));
1434
1435    fmt_paragraph.setTopMargin(5);
1436    fmt_paragraph.setRightMargin(10);
1437    fmt_paragraph.setBottomMargin(0);
1438    fmt_paragraph.setLeftMargin(10);
1439
1440    fmt_lastparagraph.setTopMargin(5);
1441    fmt_lastparagraph.setRightMargin(10);
1442    fmt_lastparagraph.setBottomMargin(15);
1443    fmt_lastparagraph.setLeftMargin(10);
1444
1445    settings->beginGroup("Output/Colors");
1446
1447    fmt_table.setTopMargin(5);
1448    fmt_table.setRightMargin(10);
1449    fmt_table.setBottomMargin(0);
1450    fmt_table.setLeftMargin(10);
1451    fmt_table.setBorder(1);
1452    fmt_table.setBorderBrush(QBrush(QColor(settings->value("TableBorder", DEF_TABLE_COLOR).toString())));
1453    fmt_table.setBorderStyle(QTextFrameFormat::BorderStyle_Solid);
1454    fmt_table.setCellSpacing(0);
1455    fmt_table.setCellPadding(2);
1456
1457    fmt_cell.setAlignment(Qt::AlignHCenter);
1458
1459QColor color = QColor(settings->value("Text", DEF_TEXT_COLOR).toString());
1460QColor hilight;
1461    if (color.value() < 192)
1462        hilight.setHsv(color.hue(), color.saturation(), 127 + (color.value() / 2));
1463    else
1464        hilight.setHsv(color.hue(), color.saturation(), color.value() / 2);
1465
1466#ifdef Q_OS_SYMBIAN
1467    /*!
1468     * \hack HACK: Fixing some weird behavior with default Symbian theme
1469     *  when text and background have the same color.
1470     */
1471    if (color != DEF_TEXT_COLOR) {
1472#endif
1473    solutionText->document()->setDefaultStyleSheet(QString("* {color: %1;}").arg(color.name()));
1474    fmt_default.setForeground(QBrush(color));
1475#ifdef Q_OS_SYMBIAN
1476    }
1477#endif
1478
1479    fmt_selected.setForeground(QBrush(QColor(settings->value("Selected", DEF_SELECTED_COLOR).toString())));
1480    fmt_selected.setFontWeight(QFont::Bold);
1481
1482    fmt_alternate.setForeground(QBrush(QColor(settings->value("Alternate", DEF_ALTERNATE_COLOR).toString())));
1483    fmt_alternate.setFontWeight(QFont::Bold);
1484    fmt_altlist.setForeground(QBrush(hilight));
1485
1486    settings->endGroup();
1487}
1488
1489void MainWindow::loadLangList()
1490{
1491QMap<QString, QStringList> langlist;
1492QFileInfoList langs;
1493QFileInfo lang;
1494QStringList language, dirs;
1495QTranslator t;
1496QDir dir;
1497    dir.setFilter(QDir::Files);
1498    dir.setNameFilters(QStringList("tspsg_*.qm"));
1499    dir.setSorting(QDir::NoSort);
1500
1501    dirs << PATH_L10N << ":/l10n";
1502    foreach (QString dirname, dirs) {
1503        dir.setPath(dirname);
1504        if (dir.exists()) {
1505            langs = dir.entryInfoList();
1506            for (int k = 0; k < langs.size(); k++) {
1507                lang = langs.at(k);
1508                if (lang.completeBaseName().compare("tspsg_en", Qt::CaseInsensitive) && !langlist.contains(lang.completeBaseName().mid(6)) && t.load(lang.completeBaseName(), dirname)) {
1509
1510                    language.clear();
1511                    language.append(lang.completeBaseName().mid(6));
1512                    language.append(t.translate("--------", "COUNTRY", "Please, provide an ISO 3166-1 alpha-2 country code for this translation language here (eg., UA).").toLower());
1513                    language.append(t.translate("--------", "LANGNAME", "Please, provide a native name of your translation language here."));
1514                    language.append(t.translate("MainWindow", "Set application language to %1", "").arg(language.at(2)));
1515
1516                    langlist.insert(language.at(0), language);
1517                }
1518            }
1519        }
1520    }
1521
1522QAction *a;
1523    foreach (language, langlist) {
1524        a = menuSettingsLanguage->addAction(language.at(2));
1525#ifndef QT_NO_STATUSTIP
1526        a->setStatusTip(language.at(3));
1527#endif
1528#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1529        a->setIcon(QIcon::fromTheme(QString("flag-%1").arg(language.at(1)), QIcon(QString(":/images/icons/l10n/flag-%1.png").arg(language.at(1)))));
1530#else
1531        a->setIcon(QIcon(QString(":/images/icons/l10n/flag-%1.png").arg(language.at(1))));
1532#endif
1533        a->setData(language.at(0));
1534        a->setCheckable(true);
1535        a->setActionGroup(groupSettingsLanguageList);
1536        if (settings->value("Language", QLocale::system().name()).toString().startsWith(language.at(0)))
1537            a->setChecked(true);
1538    }
1539}
1540
1541bool MainWindow::loadLanguage(const QString &lang)
1542{
1543// i18n
1544bool ad = false;
1545QString lng = lang;
1546    if (lng.isEmpty()) {
1547        ad = settings->value("Language").toString().isEmpty();
1548        lng = settings->value("Language", QLocale::system().name()).toString();
1549    }
1550static QTranslator *qtTranslator; // Qt library translator
1551    if (qtTranslator) {
1552        qApp->removeTranslator(qtTranslator);
1553        delete qtTranslator;
1554        qtTranslator = NULL;
1555    }
1556static QTranslator *translator; // Application translator
1557    if (translator) {
1558        qApp->removeTranslator(translator);
1559        delete translator;
1560        translator = NULL;
1561    }
1562
1563    if (lng == "en")
1564        return true;
1565
1566    // Trying to load system Qt library translation...
1567    qtTranslator = new QTranslator(this);
1568    if (qtTranslator->load("qt_" + lng, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
1569        // Trying from QT_INSTALL_TRANSLATIONS directory
1570        qApp->installTranslator(qtTranslator);
1571    } else if (qtTranslator->load("qt_" + lng, PATH_L10N)) {
1572        // Than from l10n directory bundled with TSPSG
1573        qApp->installTranslator(qtTranslator);
1574    } else {
1575        // Qt library translation unavailable for this language.
1576        delete qtTranslator;
1577        qtTranslator = NULL;
1578    }
1579
1580    // Now let's load application translation.
1581    translator = new QTranslator(this);
1582    if (translator->load("tspsg_" + lng, PATH_L10N)) {
1583        // We have a translation in the localization directory.
1584        qApp->installTranslator(translator);
1585    } else if (translator->load("tspsg_" + lng, ":/l10n")) {
1586        // We have a translation "built-in" into application resources.
1587        qApp->installTranslator(translator);
1588    } else {
1589        delete translator;
1590        translator = NULL;
1591        if (!ad) {
1592            settings->remove("Language");
1593            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
1594            QMessageBox::warning(isVisible() ? this : NULL, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
1595            QApplication::restoreOverrideCursor();
1596        }
1597        return false;
1598    }
1599    return true;
1600}
1601
1602void MainWindow::loadStyleList()
1603{
1604    menuSettingsStyle->clear();
1605QStringList styles = QStyleFactory::keys();
1606    menuSettingsStyle->insertAction(NULL, actionSettingsStyleSystem);
1607    actionSettingsStyleSystem->setChecked(!settings->contains("Style"));
1608    menuSettingsStyle->addSeparator();
1609QAction *a;
1610    foreach (QString style, styles) {
1611        a = menuSettingsStyle->addAction(style);
1612        a->setData(false);
1613#ifndef QT_NO_STATUSTIP
1614        a->setStatusTip(tr("Set application style to %1").arg(style));
1615#endif
1616        a->setCheckable(true);
1617        a->setActionGroup(groupSettingsStyleList);
1618        QRegExp rx(QString("^Q?%1(::(Style)?)?$").arg(QRegExp::escape(style)), Qt::CaseInsensitive);
1619        if ((style == settings->value("Style").toString()) || QApplication::style()->objectName().contains(rx)
1620#ifndef Q_WS_MAEMO_5
1621            || QString(QApplication::style()->metaObject()->className()).contains(rx)
1622#endif
1623        ) {
1624            a->setChecked(true);
1625        }
1626    }
1627}
1628
1629void MainWindow::loadToolbarList()
1630{
1631    menuSettingsToolbars->clear();
1632#ifndef HANDHELD
1633    menuSettingsToolbars->insertAction(NULL, actionSettingsToolbarsConfigure);
1634    menuSettingsToolbars->addSeparator();
1635QList<QToolBar *> list = toolBarManager->toolBars();
1636    foreach (QToolBar *t, list) {
1637        menuSettingsToolbars->insertAction(NULL, t->toggleViewAction());
1638    }
1639#else // HANDHELD
1640    menuSettingsToolbars->insertAction(NULL, toolBarMain->toggleViewAction());
1641#endif // HANDHELD
1642}
1643
1644bool MainWindow::maybeSave()
1645{
1646    if (!isWindowModified())
1647        return true;
1648#ifdef Q_OS_SYMBIAN
1649    int res = QSMessageBox(this).exec();
1650#else
1651    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);
1652#endif
1653    if (res == QMessageBox::Save)
1654        return actionFileSaveTriggered();
1655    else if (res == QMessageBox::Cancel)
1656        return false;
1657    else
1658        return true;
1659}
1660
1661void MainWindow::outputMatrix(QTextCursor &cur, const TSPSolver::TMatrix &matrix)
1662{
1663int n = spinCities->value();
1664QTextTable *table = cur.insertTable(n, n, fmt_table);
1665
1666    for (int r = 0; r < n; r++) {
1667        for (int c = 0; c < n; c++) {
1668            cur = table->cellAt(r, c).firstCursorPosition();
1669            cur.setBlockFormat(fmt_cell);
1670            cur.setBlockCharFormat(fmt_default);
1671            if (matrix.at(r).at(c) == INFINITY)
1672                cur.insertText(INFSTR);
1673            else
1674                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()));
1675        }
1676        QCoreApplication::processEvents();
1677    }
1678    cur.movePosition(QTextCursor::End);
1679}
1680
1681void MainWindow::outputMatrix(QTextCursor &cur, const TSPSolver::SStep &step)
1682{
1683int n = spinCities->value();
1684QTextTable *table = cur.insertTable(n, n, fmt_table);
1685
1686    for (int r = 0; r < n; r++) {
1687        for (int c = 0; c < n; c++) {
1688            cur = table->cellAt(r, c).firstCursorPosition();
1689            cur.setBlockFormat(fmt_cell);
1690            if (step.matrix.at(r).at(c) == INFINITY)
1691                cur.insertText(INFSTR, fmt_default);
1692            else if ((r == step.candidate.nRow) && (c == step.candidate.nCol))
1693                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);
1694            else {
1695    TSPSolver::SStep::SCandidate cand;
1696                cand.nRow = r;
1697                cand.nCol = c;
1698                if (step.alts.contains(cand))
1699                    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);
1700                else
1701                    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);
1702            }
1703        }
1704        QCoreApplication::processEvents();
1705    }
1706
1707    cur.movePosition(QTextCursor::End);
1708}
1709
1710#ifdef Q_OS_SYMBIAN
1711void MainWindow::resizeEvent(QResizeEvent *ev)
1712{
1713    static bool tb = toolBarMain->isVisible();
1714    if ((ev->size().width() < ev->size().height())
1715            && (ev->oldSize().width() > ev->oldSize().height())) {
1716        // From landscape to portrait
1717        if (tb)
1718            toolBarMain->show();
1719        setWindowState(Qt::WindowMaximized);
1720    } else if ((ev->size().width() > ev->size().height())
1721               && (ev->oldSize().width() < ev->oldSize().height())) {
1722        // From portrait to landscape
1723        if (tb = toolBarMain->isVisible())
1724            toolBarMain->hide();
1725        setWindowState(Qt::WindowFullScreen);
1726    }
1727
1728    QWidget::resizeEvent(ev);
1729}
1730#endif // Q_OS_SYMBIAN
1731
1732void MainWindow::retranslateUi(bool all)
1733{
1734    if (all)
1735        Ui_MainWindow::retranslateUi(this);
1736
1737    loadStyleList();
1738    loadToolbarList();
1739
1740#ifndef QT_NO_PRINTER
1741    actionFilePrintPreview->setText(tr("P&rint Preview..."));
1742#ifndef QT_NO_TOOLTIP
1743    actionFilePrintPreview->setToolTip(tr("Preview solution results"));
1744#endif // QT_NO_TOOLTIP
1745#ifndef QT_NO_STATUSTIP
1746    actionFilePrintPreview->setStatusTip(tr("Preview current solution results before printing"));
1747#endif // QT_NO_STATUSTIP
1748
1749    actionFilePageSetup->setText(tr("Pa&ge Setup..."));
1750#ifndef QT_NO_TOOLTIP
1751    actionFilePageSetup->setToolTip(tr("Setup print options"));
1752#endif // QT_NO_TOOLTIP
1753#ifndef QT_NO_STATUSTIP
1754    actionFilePageSetup->setStatusTip(tr("Setup page-related options for printing"));
1755#endif // QT_NO_STATUSTIP
1756
1757    actionFilePrint->setText(tr("&Print..."));
1758#ifndef QT_NO_TOOLTIP
1759    actionFilePrint->setToolTip(tr("Print solution"));
1760#endif // QT_NO_TOOLTIP
1761#ifndef QT_NO_STATUSTIP
1762    actionFilePrint->setStatusTip(tr("Print current solution results"));
1763#endif // QT_NO_STATUSTIP
1764    actionFilePrint->setShortcut(tr("Ctrl+P"));
1765#endif // QT_NO_PRINTER
1766
1767#ifndef QT_NO_STATUSTIP
1768    actionFileExit->setStatusTip(tr("Exit %1").arg(QCoreApplication::applicationName()));
1769#endif // QT_NO_STATUSTIP
1770
1771#ifndef HANDHELD
1772    actionSettingsToolbarsConfigure->setText(tr("Configure..."));
1773#ifndef QT_NO_STATUSTIP
1774    actionSettingsToolbarsConfigure->setStatusTip(tr("Customize toolbars"));
1775#endif // QT_NO_STATUSTIP
1776#endif // HANDHELD
1777
1778#ifndef QT_NO_STATUSTIP
1779    actionHelpReportBug->setStatusTip(tr("Report about a bug in %1").arg(QCoreApplication::applicationName()));
1780#endif // QT_NO_STATUSTIP
1781    if (actionHelpCheck4Updates != NULL) {
1782        actionHelpCheck4Updates->setText(tr("Check for &Updates..."));
1783#ifndef QT_NO_STATUSTIP
1784        actionHelpCheck4Updates->setStatusTip(tr("Check for %1 updates").arg(QCoreApplication::applicationName()));
1785#endif // QT_NO_STATUSTIP
1786    }
1787#ifndef QT_NO_STATUSTIP
1788    actionHelpAbout->setStatusTip(tr("About %1").arg(QCoreApplication::applicationName()));
1789#endif // QT_NO_STATUSTIP
1790
1791#ifdef Q_OS_SYMBIAN
1792    actionRightSoftKey->setText(tr("E&xit"));
1793#endif
1794}
1795
1796bool MainWindow::saveTask() {
1797QStringList filters(tr("%1 Task File").arg("TSPSG") + " (*.tspt)");
1798    filters.append(tr("All Files") + " (*)");
1799QString file;
1800    if ((fileName == tr("Untitled") + ".tspt") && settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool()) {
1801        file = settings->value(OS"/LastUsed/TaskSavePath").toString();
1802        if (!file.isEmpty())
1803            file.append("/");
1804        file.append(fileName);
1805    } else if (fileName.endsWith(".tspt", Qt::CaseInsensitive))
1806        file = fileName;
1807    else
1808        file = QFileInfo(fileName).path() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt";
1809
1810QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
1811    file = QFileDialog::getSaveFileName(this, tr("Task Save"), file, filters.join(";;"), NULL, opts);
1812    if (file.isEmpty())
1813        return false;
1814    else if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
1815        settings->setValue(OS"/LastUsed/TaskSavePath", QFileInfo(file).path());
1816    if (QFileInfo(file).suffix().isEmpty()) {
1817        file.append(".tspt");
1818    }
1819
1820    if (tspmodel->saveTask(file)) {
1821        setFileName(file);
1822        setWindowModified(false);
1823        return true;
1824    }
1825    return false;
1826}
1827
1828void MainWindow::setFileName(const QString &fileName)
1829{
1830    this->fileName = fileName;
1831    setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(QCoreApplication::applicationName()));
1832}
1833
1834void MainWindow::setupUi()
1835{
1836    Ui_MainWindow::setupUi(this);
1837
1838#ifdef Q_OS_SYMBIAN
1839    setWindowFlags(windowFlags() | Qt::WindowSoftkeysVisibleHint);
1840#endif // Q_OS_SYMBIAN
1841
1842    // File Menu
1843    actionFileNew->setIcon(GET_ICON("document-new"));
1844    actionFileOpen->setIcon(GET_ICON("document-open"));
1845    actionFileSave->setIcon(GET_ICON("document-save"));
1846#ifndef HANDHELD
1847    menuFileSaveAs->setIcon(GET_ICON("document-save-as"));
1848#endif
1849    actionFileExit->setIcon(GET_ICON("application-exit"));
1850    // Settings Menu
1851#ifndef HANDHELD
1852    menuSettingsLanguage->setIcon(GET_ICON("preferences-desktop-locale"));
1853#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1854    actionSettingsLanguageEnglish->setIcon(QIcon::fromTheme("flag-gb", QIcon(":/images/icons/l10n/flag-gb.png")));
1855#else
1856    actionSettingsLanguageEnglish->setIcon(QIcon(":/images/icons/l10n/flag-gb.png"));
1857#endif // QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1858    menuSettingsStyle->setIcon(GET_ICON("preferences-desktop-theme"));
1859#endif // HANDHELD
1860    actionSettingsPreferences->setIcon(GET_ICON("preferences-system"));
1861    // Help Menu
1862#ifndef HANDHELD
1863    actionHelpContents->setIcon(GET_ICON("help-contents"));
1864    actionHelpContextual->setIcon(GET_ICON("help-contextual"));
1865    actionHelpOnlineSupport->setIcon(GET_ICON("applications-internet"));
1866    actionHelpReportBug->setIcon(GET_ICON("tools-report-bug"));
1867    actionHelpAbout->setIcon(GET_ICON("help-about"));
1868#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
1869    actionHelpAboutQt->setIcon(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"));
1870#else
1871    actionHelpAboutQt->setIcon(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"));
1872#endif // QT_VERSION < QT_VERSION_CHECK(5,0,0)
1873#endif // HANDHELD
1874    // Buttons
1875    buttonRandom->setIcon(GET_ICON("roll"));
1876    buttonSolve->setIcon(GET_ICON("dialog-ok"));
1877    buttonSaveSolution->setIcon(GET_ICON("document-save-as"));
1878    buttonBackToTask->setIcon(GET_ICON("go-previous"));
1879
1880//      action->setIcon(GET_ICON(""));
1881
1882#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1883    setToolButtonStyle(Qt::ToolButtonFollowStyle);
1884#endif
1885
1886#ifndef HANDHELD
1887QStatusBar *statusbar = new QStatusBar(this);
1888    statusbar->setObjectName("statusbar");
1889    setStatusBar(statusbar);
1890#endif // HANDHELD
1891
1892#ifdef Q_OS_WINCE_WM
1893    menuBar()->setDefaultAction(menuFile->menuAction());
1894
1895QScrollArea *scrollArea = new QScrollArea(this);
1896    scrollArea->setFrameShape(QFrame::NoFrame);
1897    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
1898    scrollArea->setWidgetResizable(true);
1899    scrollArea->setWidget(tabWidget);
1900    setCentralWidget(scrollArea);
1901#else
1902    setCentralWidget(tabWidget);
1903#endif // Q_OS_WINCE_WM
1904
1905    //! \hack HACK: A little hack for toolbar icons to have a sane size.
1906#if defined(HANDHELD) && !defined(Q_WS_MAEMO_5)
1907#ifdef Q_OS_SYMBIAN
1908    toolBarMain->setIconSize(QSize(logicalDpiX() / 5.2, logicalDpiY() / 5.2));
1909#else
1910    toolBarMain->setIconSize(QSize(logicalDpiX() / 4, logicalDpiY() / 4));
1911#endif // Q_OS_SYMBIAN
1912#endif // HANDHELD && !Q_WS_MAEMO_5
1913QToolButton *tb = static_cast<QToolButton *>(toolBarMain->widgetForAction(actionFileSave));
1914    if (tb != NULL) {
1915        tb->setMenu(menuFileSaveAs);
1916        tb->setPopupMode(QToolButton::MenuButtonPopup);
1917    }
1918
1919//      solutionText->document()->setDefaultFont(settings->value("Output/Font", QFont(DEF_FONT_FAMILY, DEF_FONT_SIZE)).value<QFont>());
1920    solutionText->setWordWrapMode(QTextOption::WordWrap);
1921
1922#ifndef QT_NO_PRINTER
1923    actionFilePrintPreview = new QAction(this);
1924    actionFilePrintPreview->setObjectName("actionFilePrintPreview");
1925    actionFilePrintPreview->setEnabled(false);
1926    actionFilePrintPreview->setIcon(GET_ICON("document-print-preview"));
1927
1928    actionFilePageSetup = new QAction(this);
1929    actionFilePageSetup->setObjectName("actionFilePrintSetup");
1930//    actionFilePageSetup->setEnabled(false);
1931#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1932    actionFilePageSetup->setIcon(QIcon::fromTheme("document-page-setup", QIcon(":/trolltech/dialogs/qprintpreviewdialog/images/page-setup-32.png")));
1933#else
1934    actionFilePageSetup->setIcon(QIcon(":/trolltech/dialogs/qprintpreviewdialog/images/page-setup-32.png"));
1935#endif
1936
1937    actionFilePrint = new QAction(this);
1938    actionFilePrint->setObjectName("actionFilePrint");
1939    actionFilePrint->setEnabled(false);
1940    actionFilePrint->setIcon(GET_ICON("document-print"));
1941
1942    menuFile->insertAction(actionFileExit, actionFilePrintPreview);
1943    menuFile->insertAction(actionFileExit, actionFilePageSetup);
1944    menuFile->insertAction(actionFileExit, actionFilePrint);
1945    menuFile->insertSeparator(actionFileExit);
1946
1947    toolBarMain->insertAction(actionSettingsPreferences, actionFilePrint);
1948#endif // QT_NO_PRINTER
1949
1950    groupSettingsLanguageList = new QActionGroup(this);
1951#ifdef Q_WS_MAEMO_5
1952    groupSettingsLanguageList->addAction(actionSettingsLanguageAutodetect);
1953#endif
1954    actionSettingsLanguageEnglish->setData("en");
1955    actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
1956    loadLangList();
1957    actionSettingsLanguageAutodetect->setChecked(settings->value("Language", "").toString().isEmpty());
1958
1959    actionSettingsStyleSystem->setData(true);
1960    groupSettingsStyleList = new QActionGroup(this);
1961#ifdef Q_WS_MAEMO_5
1962    groupSettingsStyleList->addAction(actionSettingsStyleSystem);
1963#endif
1964
1965#ifndef HANDHELD
1966    actionSettingsToolbarsConfigure = new QAction(this);
1967    actionSettingsToolbarsConfigure->setIcon(GET_ICON("configure-toolbars"));
1968#endif // HANDHELD
1969
1970    if (hasUpdater()) {
1971        actionHelpCheck4Updates = new QAction(this);
1972        actionHelpCheck4Updates->setIcon(GET_ICON("system-software-update"));
1973        actionHelpCheck4Updates->setEnabled(hasUpdater());
1974        menuHelp->insertAction(actionHelpAboutQt, actionHelpCheck4Updates);
1975        menuHelp->insertSeparator(actionHelpAboutQt);
1976    } else
1977        actionHelpCheck4Updates = NULL;
1978
1979    spinCities->setMaximum(settings->value("Tweaks/MaxNumCities", MAX_NUM_CITIES).toInt());
1980
1981#ifndef HANDHELD
1982    toolBarManager = new QtToolBarManager(this);
1983    toolBarManager->setMainWindow(this);
1984QString cat = toolBarMain->windowTitle();
1985    toolBarManager->addToolBar(toolBarMain, cat);
1986#ifndef QT_NO_PRINTER
1987    toolBarManager->addAction(actionFilePrintPreview, cat);
1988    toolBarManager->addAction(actionFilePageSetup, cat);
1989#endif // QT_NO_PRINTER
1990    toolBarManager->addAction(actionHelpContents, cat);
1991    toolBarManager->addAction(actionHelpContextual, cat);
1992    toolBarManager->restoreState(settings->value("MainWindow/Toolbars").toByteArray());
1993#else
1994    toolBarMain->setVisible(settings->value("MainWindow/ToolbarVisible", true).toBool());
1995#endif // HANDHELD
1996
1997#ifdef Q_OS_SYMBIAN
1998    // Replace Exit on the right soft key with our own exit action.
1999    // This makes it translatable.
2000    actionRightSoftKey = new QAction(this);
2001    actionRightSoftKey->setSoftKeyRole(QAction::NegativeSoftKey);
2002    connect(actionRightSoftKey, SIGNAL(triggered()), SLOT(close()));
2003    addAction(actionRightSoftKey);
2004#endif
2005
2006    retranslateUi(false);
2007
2008#ifndef HANDHELD
2009    // Adding some eyecandy
2010    if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool())  {
2011        toggleTranclucency(true);
2012    }
2013#endif // HANDHELD
2014}
2015
2016void MainWindow::toggleSolutionActions(bool enable)
2017{
2018    buttonSaveSolution->setEnabled(enable);
2019    actionFileSaveAsSolution->setEnabled(enable);
2020    solutionText->setEnabled(enable);
2021#ifndef QT_NO_PRINTER
2022    actionFilePrint->setEnabled(enable);
2023    actionFilePrintPreview->setEnabled(enable);
2024#endif // QT_NO_PRINTER
2025}
2026
2027void MainWindow::toggleTranclucency(bool enable)
2028{
2029#ifndef HANDHELD
2030    toggleStyle(labelVariant, enable);
2031    toggleStyle(labelCities, enable);
2032    toggleStyle(statusBar(), enable);
2033    tabWidget->setDocumentMode(enable);
2034    QtWin::enableBlurBehindWindow(this, enable);
2035#else
2036    Q_UNUSED(enable);
2037#endif // HANDHELD
2038}
2039
2040void MainWindow::actionHelpOnlineSupportTriggered()
2041{
2042    QDesktopServices::openUrl(QUrl("http://tspsg.info/goto/support"));
2043}
2044
2045void MainWindow::actionHelpReportBugTriggered()
2046{
2047    QDesktopServices::openUrl(QUrl("http://tspsg.info/goto/bugtracker"));
2048}
2049
2050#ifdef Q_OS_SYMBIAN
2051QSMessageBox::QSMessageBox(QWidget *parent)
2052    : QMessageBox(parent)
2053{
2054    setIcon(QMessageBox::Warning);
2055    setWindowTitle(QApplication::translate("MainWindow", "Unsaved Changes"));
2056    setText(QApplication::translate("MainWindow", "Would you like to save changes in the current task?"));
2057    setStandardButtons(QMessageBox::Save);
2058
2059    QMenu *m = new QMenu(this);
2060    m->addAction(QApplication::translate("QDialogButtonBox", "Discard", "No need to translate this. The translation will be taken from Qt translation files."),
2061                 this, SLOT(discard()));
2062    m->addAction(QApplication::translate("QDialogButtonBox", "Cancel", "No need to translate this. The translation will be taken from Qt translation files."),
2063                 this, SLOT(cancel()));
2064
2065    QAction *o = new QAction(QApplication::translate("QtToolBarDialog", "Actions"), this);
2066    o->setSoftKeyRole(QAction::NegativeSoftKey);
2067    o->setMenu(m);
2068    addAction(o);
2069}
2070
2071void QSMessageBox::cancel(){
2072    done(QMessageBox::Cancel);
2073}
2074
2075void QSMessageBox::discard() {
2076    done(QMessageBox::Discard);
2077}
2078#endif // Q_OS_SYMBIAN
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