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source: tspsg-svn/trunk/src/mainwindow.cpp @ 111

Last change on this file since 111 was 110, checked in by laleppa, 15 years ago

+ Added ChangeLog?, Installation Guide and License pages to doxygen generated documentation.

Added city and separator parameters to CTSPSolver::getSortedPath() method to make path generation more flexible.
Fixed a bug when the solution graph wasn't drwan correctly in some situations.

Property svn:keywords set to Id URL

File size: 43.5 KB

Rev	Line
[100]	1	/*
	2	* TSPSG: TSP Solver and Generator
	3	* Copyright (C) 2007-2010 Lёppa <contacts[at]oleksii[dot]name>
	4	*
	5	* $Id: mainwindow.cpp 110 2010-04-27 23:38:10Z laleppa $
	6	* $URL: https://tspsg.svn.sourceforge.net/svnroot/tspsg/trunk/src/mainwindow.cpp $
	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
	26	/*!
	27	* \brief Class constructor.
	28	* \param parent Main Window parent widget.
	29	*
	30	* Initializes Main Window and creates its layout based on target OS.
	31	* Loads TSPSG settings and opens a task file if it was specified as a commandline parameter.
	32	*/
	33	MainWindow::MainWindow(QWidget *parent)
	34	: QMainWindow(parent)
	35	{
	36	settings = new QSettings(QSettings::IniFormat, QSettings::UserScope, "TSPSG", "tspsg", this);
	37
	38	loadLanguage();
	39	setupUi();
[105]	40	setAcceptDrops(true);
[100]	41
	42	initDocStyleSheet();
	43
	44	#ifndef QT_NO_PRINTER
	45	printer = new QPrinter(QPrinter::HighResolution);
	46	#endif // QT_NO_PRINTER
	47
	48	#ifdef Q_OS_WINCE_WM
	49	currentGeometry = QApplication::desktop()->availableGeometry(0);
	50	// We need to react to SIP show/hide and resize the window appropriately
	51	connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), SLOT(desktopResized(int)));
	52	#endif // Q_OS_WINCE_WM
	53	connect(actionFileNew,SIGNAL(triggered()),this,SLOT(actionFileNewTriggered()));
	54	connect(actionFileOpen,SIGNAL(triggered()),this,SLOT(actionFileOpenTriggered()));
	55	connect(actionFileSave,SIGNAL(triggered()),this,SLOT(actionFileSaveTriggered()));
	56	connect(actionFileSaveAsTask,SIGNAL(triggered()),this,SLOT(actionFileSaveAsTaskTriggered()));
	57	connect(actionFileSaveAsSolution,SIGNAL(triggered()),this,SLOT(actionFileSaveAsSolutionTriggered()));
	58	#ifndef QT_NO_PRINTER
	59	connect(actionFilePrintPreview,SIGNAL(triggered()),this,SLOT(actionFilePrintPreviewTriggered()));
	60	connect(actionFilePrint,SIGNAL(triggered()),this,SLOT(actionFilePrintTriggered()));
	61	#endif // QT_NO_PRINTER
	62	connect(actionSettingsPreferences,SIGNAL(triggered()),this,SLOT(actionSettingsPreferencesTriggered()));
	63	#ifdef Q_OS_WIN32
	64	connect(actionHelpCheck4Updates, SIGNAL(triggered()), SLOT(actionHelpCheck4UpdatesTriggered()));
	65	#endif // Q_OS_WIN32
	66	connect(actionSettingsLanguageAutodetect,SIGNAL(triggered(bool)),this,SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
	67	connect(groupSettingsLanguageList,SIGNAL(triggered(QAction )),this,SLOT(groupSettingsLanguageListTriggered(QAction )));
	68	connect(actionHelpAboutQt,SIGNAL(triggered()),qApp,SLOT(aboutQt()));
	69	connect(actionHelpAbout,SIGNAL(triggered()),this,SLOT(actionHelpAboutTriggered()));
	70
	71	connect(buttonSolve,SIGNAL(clicked()),this,SLOT(buttonSolveClicked()));
	72	connect(buttonRandom,SIGNAL(clicked()),this,SLOT(buttonRandomClicked()));
	73	connect(buttonBackToTask,SIGNAL(clicked()),this,SLOT(buttonBackToTaskClicked()));
	74	connect(spinCities,SIGNAL(valueChanged(int)),this,SLOT(spinCitiesValueChanged(int)));
	75
	76	#ifndef HANDHELD
	77	// Centering main window
	78	QRect rect = geometry();
	79	rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
	80	setGeometry(rect);
	81	if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
	82	// Loading of saved window state
	83	settings->beginGroup("MainWindow");
	84	restoreGeometry(settings->value("Geometry").toByteArray());
	85	restoreState(settings->value("State").toByteArray());
	86	settings->endGroup();
	87	}
	88	#else
	89	setWindowState(Qt::WindowMaximized);
	90	#endif // HANDHELD
	91
	92	tspmodel = new CTSPModel(this);
	93	taskView->setModel(tspmodel);
	94	connect(tspmodel,SIGNAL(numCitiesChanged(int)),this,SLOT(numCitiesChanged(int)));
	95	connect(tspmodel,SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),this,SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
	96	connect(tspmodel,SIGNAL(layoutChanged()),this,SLOT(dataChanged()));
	97	if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
	98	setFileName(QCoreApplication::arguments().at(1));
	99	else {
	100	setFileName();
	101	spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
	102	spinCitiesValueChanged(spinCities->value());
	103	}
	104	setWindowModified(false);
	105	}
	106
	107	MainWindow::~MainWindow()
	108	{
	109	#ifndef QT_NO_PRINTER
	110	delete printer;
	111	#endif
	112	}
	113
	114	/* Privates **********************************************************/
	115
	116	void MainWindow::actionFileNewTriggered()
	117	{
	118	if (!maybeSave())
	119	return;
	120	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	121	tspmodel->clear();
	122	setFileName();
	123	setWindowModified(false);
	124	tabWidget->setCurrentIndex(0);
	125	solutionText->clear();
	126	toggleSolutionActions(false);
	127	QApplication::restoreOverrideCursor();
	128	}
	129
	130	void MainWindow::actionFileOpenTriggered()
	131	{
	132	if (!maybeSave())
	133	return;
	134
	135	QStringList filters(tr("All Supported Formats") + " (.tspt .zkt)");
	136	filters.append(tr("%1 Task Files").arg("TSPSG") + " (*.tspt)");
	137	filters.append(tr("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
	138	filters.append(tr("All Files") + " (*)");
	139
	140	QString file = QFileInfo(fileName).canonicalPath();
	141	QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
	142	file = QFileDialog::getOpenFileName(this, tr("Task Load"), file, filters.join(";;"), NULL, opts);
	143	if (file.isEmpty() \|\| !QFileInfo(file).isFile())
	144	return;
	145	if (!tspmodel->loadTask(file))
	146	return;
	147	setFileName(file);
	148	tabWidget->setCurrentIndex(0);
	149	setWindowModified(false);
	150	solutionText->clear();
	151	toggleSolutionActions(false);
	152	}
	153
	154	bool MainWindow::actionFileSaveTriggered()
	155	{
	156	if ((fileName == tr("Untitled") + ".tspt") \|\| (!fileName.endsWith(".tspt", Qt::CaseInsensitive)))
	157	return saveTask();
	158	else
	159	if (tspmodel->saveTask(fileName)) {
	160	setWindowModified(false);
	161	return true;
	162	} else
	163	return false;
	164	}
	165
	166	void MainWindow::actionFileSaveAsTaskTriggered()
	167	{
	168	saveTask();
	169	}
	170
	171	void MainWindow::actionFileSaveAsSolutionTriggered()
	172	{
	173	static QString selectedFile;
	174	if (selectedFile.isEmpty())
	175	selectedFile = QFileInfo(fileName).canonicalPath();
	176	else
	177	selectedFile = QFileInfo(selectedFile).canonicalPath();
	178	if (!selectedFile.isEmpty())
	179	selectedFile += "/";
	180	if (fileName == tr("Untitled") + ".tspt") {
	181	#ifndef QT_NO_PRINTER
	182	selectedFile += "solution.pdf";
	183	#else
	184	selectedFile += "solution.html";
	185	#endif // QT_NO_PRINTER
	186	} else {
	187	#ifndef QT_NO_PRINTER
	188	selectedFile += QFileInfo(fileName).completeBaseName() + ".pdf";
	189	#else
	190	selectedFile += QFileInfo(fileName).completeBaseName() + ".html";
	191	#endif // QT_NO_PRINTER
	192	}
	193
	194	QStringList filters;
	195	#ifndef QT_NO_PRINTER
	196	filters.append(tr("PDF Files") + " (*.pdf)");
	197	#endif
	198	filters.append(tr("HTML Files") + " (.html .htm)");
	199	#if QT_VERSION >= 0x040500
	200	filters.append(tr("OpenDocument Files") + " (*.odt)");
	201	#endif // QT_VERSION >= 0x040500
	202	filters.append(tr("All Files") + " (*)");
	203
	204	QFileDialog::Options opts(settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog);
	205	QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, opts);
	206	if (file.isEmpty())
	207	return;
	208	selectedFile = file;
	209	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	210	#ifndef QT_NO_PRINTER
	211	if (selectedFile.endsWith(".pdf",Qt::CaseInsensitive)) {
	212	QPrinter printer(QPrinter::HighResolution);
	213	printer.setOutputFormat(QPrinter::PdfFormat);
	214	printer.setOutputFileName(selectedFile);
	215	solutionText->document()->print(&printer);
	216	QApplication::restoreOverrideCursor();
	217	return;
	218	}
	219	#endif
[108]	220	if (selectedFile.endsWith(".htm", Qt::CaseInsensitive) \|\| selectedFile.endsWith(".html", Qt::CaseInsensitive)) {
	221	QFile file(selectedFile);
	222	if (!file.open(QFile::WriteOnly)) {
	223	QApplication::restoreOverrideCursor();
	224	QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(file.errorString()));
	225	return;
	226	}
	227	QFileInfo fi(selectedFile);
[109]	228	QString format = settings->value("Output/GraphImageFormat", DEF_GRAPH_IMAGE_FORMAT).toString();
	229	#if !defined(NOSVG) && (QT_VERSION >= 0x040500)
	230	if (!QImageWriter::supportedImageFormats().contains(format.toAscii()) && (format != "svg")) {
	231	#else // NOSVG && QT_VERSION >= 0x040500
	232	if (!QImageWriter::supportedImageFormats().contains(format.toAscii())) {
	233	#endif // NOSVG && QT_VERSION >= 0x040500
	234	format = DEF_GRAPH_IMAGE_FORMAT;
	235	settings->remove("Output/GraphImageFormat");
	236	}
[108]	237	QString html = solutionText->document()->toHtml("UTF-8"),
[109]	238	img = fi.completeBaseName() + "." + format;
	239	html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""), QString("<img src=\"%1\" width=\"%2\" height=\"%3\" alt=\"%4\"").arg(img).arg(graph.width() + 2).arg(graph.height() + 2).arg(tr("Solution Graph")));
	240
[108]	241	// Saving solution text as HTML
	242	QTextStream ts(&file);
	243	ts.setCodec(QTextCodec::codecForName("UTF-8"));
	244	ts << html;
	245	file.close();
[109]	246
	247	// Saving solution graph as SVG or PNG (depending on settings and SVG support)
	248	#if !defined(NOSVG) && (QT_VERSION >= 0x040500)
	249	if (format == "svg") {
[108]	250	QSvgGenerator svg;
[109]	251	svg.setSize(QSize(graph.width(), graph.height()));
	252	svg.setResolution(graph.logicalDpiX());
	253	svg.setFileName(fi.path() + "/" + img);
	254	svg.setTitle(tr("Solution Graph"));
	255	svg.setDescription(tr("Generated with %1").arg(QApplication::applicationName()));
[108]	256	QPainter p;
[109]	257	p.begin(&svg);
	258	p.drawPicture(1, 1, graph);
	259	p.end();
	260	} else {
	261	#endif // NOSVG && QT_VERSION >= 0x040500
	262	QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
	263	i.fill(0x00FFFFFF);
	264	QPainter p;
	265	p.begin(&i);
	266	p.drawPicture(1, 1, graph);
	267	p.end();
	268	QImageWriter pic(fi.path() + "/" + img);
	269	if (pic.supportsOption(QImageIOHandler::Description)) {
	270	pic.setText("Title", "Solution Graph");
	271	pic.setText("Software", QApplication::applicationName());
	272	}
	273	if (format == "png")
	274	pic.setQuality(5);
	275	else if (format == "jpeg")
	276	pic.setQuality(80);
	277	if (!pic.write(i)) {
	278	QApplication::restoreOverrideCursor();
	279	QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(pic.errorString()));
	280	return;
	281	}
	282	#if !defined(NOSVG) && (QT_VERSION >= 0x040500)
	283	}
	284	#endif // NOSVG && QT_VERSION >= 0x040500
[108]	285
	286	// Qt < 4.5 has no QTextDocumentWriter class
[100]	287	#if QT_VERSION >= 0x040500
[108]	288	} else {
[100]	289	QTextDocumentWriter dw(selectedFile);
[108]	290	if (!selectedFile.endsWith(".odt",Qt::CaseInsensitive))
	291	dw.setFormat("plaintext");
	292	if (!dw.write(solutionText->document()))
	293	QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(dw.device()->errorString()));
	294	#endif // QT_VERSION >= 0x040500
[100]	295	}
	296	QApplication::restoreOverrideCursor();
	297	}
	298
	299	#ifndef QT_NO_PRINTER
	300	void MainWindow::actionFilePrintPreviewTriggered()
	301	{
	302	QPrintPreviewDialog ppd(printer, this);
	303	connect(&ppd,SIGNAL(paintRequested(QPrinter )),SLOT(printPreview(QPrinter )));
	304	ppd.exec();
	305	}
	306
	307	void MainWindow::actionFilePrintTriggered()
	308	{
	309	QPrintDialog pd(printer,this);
	310	#if QT_VERSION >= 0x040500
	311	// No such methods in Qt < 4.5
	312	pd.setOption(QAbstractPrintDialog::PrintSelection,false);
	313	pd.setOption(QAbstractPrintDialog::PrintPageRange,false);
	314	#endif
	315	if (pd.exec() != QDialog::Accepted)
	316	return;
	317	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	318	solutionText->document()->print(printer);
	319	QApplication::restoreOverrideCursor();
	320	}
	321	#endif // QT_NO_PRINTER
	322
	323	void MainWindow::actionSettingsPreferencesTriggered()
	324	{
	325	SettingsDialog sd(this);
	326	if (sd.exec() != QDialog::Accepted)
	327	return;
	328	if (sd.colorChanged() \|\| sd.fontChanged()) {
	329	if (!solutionText->document()->isEmpty() && sd.colorChanged())
	330	QMessageBox::information(this, tr("Settings Changed"), tr("You have changed color settings.\nThey will be applied to the next solution output."));
	331	initDocStyleSheet();
	332	}
	333	if (sd.translucencyChanged() != 0)
	334	toggleTranclucency(sd.translucencyChanged() == 1);
	335	}
	336
	337	void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
	338	{
	339	if (checked) {
	340	settings->remove("Language");
	341	QMessageBox::information(this, tr("Language change"), tr("Language will be autodetected on the next application start."));
	342	} else
	343	settings->setValue("Language", groupSettingsLanguageList->checkedAction()->data().toString());
	344	}
	345
	346	void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
	347	{
	348	if (actionSettingsLanguageAutodetect->isChecked()) {
	349	// We have language autodetection. It needs to be disabled to change language.
	350	if (QMessageBox::question(this, tr("Language change"), tr("You have language autodetection turned on.\nIt needs to be off.\nDo you wish to turn it off?"), QMessageBox::Yes \| QMessageBox::No) == QMessageBox::Yes) {
	351	actionSettingsLanguageAutodetect->trigger();
	352	} else
	353	return;
	354	}
	355	bool untitled = (fileName == tr("Untitled") + ".tspt");
	356	if (loadLanguage(action->data().toString())) {
	357	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	358	settings->setValue("Language",action->data().toString());
	359	retranslateUi();
	360	if (untitled)
	361	setFileName();
	362	#ifdef Q_OS_WIN32
	363	if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool()) {
	364	toggleStyle(labelVariant, true);
	365	toggleStyle(labelCities, true);
	366	}
	367	#endif
	368	QApplication::restoreOverrideCursor();
	369	if (!solutionText->document()->isEmpty())
	370	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."));
	371	}
	372	}
	373
	374	#ifdef Q_OS_WIN32
	375	void MainWindow::actionHelpCheck4UpdatesTriggered()
	376	{
	377	if (!hasUpdater()) {
	378	QMessageBox::warning(this, tr("Unsupported Feature"), tr("Sorry, but this feature is not supported on your platform\nor support for this feature was not installed."));
	379	return;
	380	}
	381
	382	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	383	QProcess::execute("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\"");
	384	QApplication::restoreOverrideCursor();
	385	}
	386	#endif // Q_OS_WIN32
	387
	388	void MainWindow::actionHelpAboutTriggered()
	389	{
	390	QString title;
	391	#ifdef HANDHELD
	392	title += QString("<b>TSPSG<br>TSP Solver and Generator</b><br>");
	393	#else
[109]	394	title += QString("<b>%1</b><br>").arg(QApplication::applicationName());
[100]	395	#endif // HANDHELD
	396	title += QString("%1: <b>%2</b><br>").arg(tr("Version"), QApplication::applicationVersion());
	397	#ifndef HANDHELD
	398	title += QString("<b>© 2007-%1 <a href=\"http://%2/\">%3</a></b><br>").arg(QDate::currentDate().toString("yyyy"), QApplication::organizationDomain(), QApplication::organizationName());
	399	title += QString("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sourceforge.net/</a></b>");
	400	#else
	401	title += QString("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sf.net/</a></b>");
	402	#endif // Q_OS_WINCE_WM && Q_OS_SYMBIAN
	403
	404	QString about;
	405	about += QString("%1: <b>%2</b><br>").arg(tr("Target OS (ARCH)"), OS);
	406	#ifndef STATIC_BUILD
	407	about += QString("%1 (%2):<br>").arg(tr("Qt library"), tr("shared"));
	408	about += QString("    %1: <b>%2</b><br>").arg(tr("Build time"), QT_VERSION_STR);
	409	about += QString("    %1: <b>%2</b><br>").arg(tr("Runtime"), qVersion());
	410	#else
	411	about += QString("%1: <b>%2</b> (%3)<br>").arg(tr("Qt library"), QT_VERSION_STR, tr("static"));
	412	#endif // STATIC_BUILD
	413	about += tr("Buid <b>%1</b>, built on <b>%2</b> at <b>%3</b>").arg(BUILD_NUMBER).arg(__DATE__).arg(__TIME__) + "<br>";
	414	about += QString("%1: <b>%2</b><br>").arg(tr("Algorithm"), CTSPSolver::getVersionId());
	415	about += "<br>";
	416	about += tr("TSPSG is free software: you can redistribute it and/or modify it<br>"
	417	"under the terms of the GNU General Public License as published<br>"
	418	"by the Free Software Foundation, either version 3 of the License,<br>"
	419	"or (at your option) any later version.<br>"
	420	"<br>"
	421	"TSPSG is distributed in the hope that it will be useful, but<br>"
	422	"WITHOUT ANY WARRANTY; without even the implied warranty of<br>"
	423	"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>"
	424	"GNU General Public License for more details.<br>"
	425	"<br>"
	426	"You should have received a copy of the GNU General Public License<br>"
	427	"along with TSPSG. If not, see <a href=\"http://www.gnu.org/licenses/\">http://www.gnu.org/licenses/</a>.");
	428
	429	QDialog *dlg = new QDialog(this);
	430	QLabel *lblIcon = new QLabel(dlg),
	431	*lblTitle = new QLabel(dlg),
	432	*lblTranslated = new QLabel(dlg);
	433	#ifdef HANDHELD
	434	QLabel *lblSubTitle = new QLabel(QString("<b>© 2007-%1 <a href=\"http://%2/\">%3</a></b>").arg(QDate::currentDate().toString("yyyy"), QApplication::organizationDomain(), QApplication::organizationName()), dlg);
	435	#endif // HANDHELD
	436	QTextBrowser *txtAbout = new QTextBrowser(dlg);
	437	QVBoxLayout *vb = new QVBoxLayout();
	438	QHBoxLayout *hb1 = new QHBoxLayout(),
	439	*hb2 = new QHBoxLayout();
	440	QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok, Qt::Horizontal, dlg);
	441
	442	lblTitle->setOpenExternalLinks(true);
	443	lblTitle->setText(title);
	444	lblTitle->setAlignment(Qt::AlignTop);
	445	lblTitle->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
	446	#ifndef HANDHELD
	447	lblTitle->setStyleSheet(QString("QLabel {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 3px;}").arg(palette().window().color().name(), palette().shadow().color().name()));
	448	#endif // HANDHELD
	449
	450	lblIcon->setPixmap(QPixmap(":/images/tspsg.png").scaledToHeight(lblTitle->sizeHint().height(), Qt::SmoothTransformation));
	451	lblIcon->setAlignment(Qt::AlignVCenter);
	452	#ifndef HANDHELD
	453	lblIcon->setStyleSheet(QString("QLabel {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 3px;}").arg(palette().window().color().name(), palette().windowText().color().name()));
	454	#endif // HANDHELD
	455
	456	hb1->addWidget(lblIcon);
	457	hb1->addWidget(lblTitle);
	458
	459	txtAbout->setWordWrapMode(QTextOption::NoWrap);
	460	txtAbout->setOpenExternalLinks(true);
	461	txtAbout->setHtml(about);
	462	txtAbout->moveCursor(QTextCursor::Start);
	463	#ifndef HANDHELD
	464	txtAbout->setStyleSheet(QString("QTextBrowser {border-color: %1; border-width: 1px; border-style: solid; border-radius: 3px;}").arg(palette().shadow().color().name()));
	465	#endif // HANDHELD
	466
	467	bb->button(QDialogButtonBox::Ok)->setCursor(QCursor(Qt::PointingHandCursor));
	468
	469	lblTranslated->setText(QApplication::translate("--------", "TRANSLATION", "Please, provide translator credits here."));
	470	if (lblTranslated->text() == "TRANSLATION")
	471	lblTranslated->hide();
	472	else {
	473	lblTranslated->setOpenExternalLinks(true);
	474	#ifndef HANDHELD
	475	lblTranslated->setStyleSheet(QString("QLabel {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 3px;}").arg(palette().window().color().name(), palette().shadow().color().name()));
	476	#endif // HANDHELD
	477	hb2->addWidget(lblTranslated);
	478	}
	479
	480	hb2->addWidget(bb);
	481
	482	#ifdef Q_OS_WINCE_WM
	483	vb->setMargin(3);
	484	#endif // Q_OS_WINCE_WM
	485	vb->addLayout(hb1);
	486	#ifdef HANDHELD
	487	vb->addWidget(lblSubTitle);
	488	#endif // HANDHELD
	489	vb->addWidget(txtAbout);
	490	vb->addLayout(hb2);
	491
	492	dlg->setWindowFlags(Qt::Dialog \| Qt::CustomizeWindowHint \| Qt::WindowTitleHint \| Qt::WindowCloseButtonHint);
	493	dlg->setWindowTitle(tr("About TSPSG"));
	494	dlg->setLayout(vb);
	495
	496	connect(bb, SIGNAL(accepted()), dlg, SLOT(accept()));
	497
	498	#ifdef Q_OS_WIN32
	499	// Adding some eyecandy in Vista and 7 :-)
	500	if (QtWin::isCompositionEnabled()) {
	501	QtWin::enableBlurBehindWindow(dlg, true);
	502	}
	503	#endif // Q_OS_WIN32
	504
	505	dlg->resize(450, 350);
	506
	507	dlg->exec();
	508
	509	delete dlg;
	510	}
	511
	512	void MainWindow::buttonBackToTaskClicked()
	513	{
	514	tabWidget->setCurrentIndex(0);
	515	}
	516
	517	void MainWindow::buttonRandomClicked()
	518	{
	519	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	520	tspmodel->randomize();
	521	QApplication::restoreOverrideCursor();
	522	}
	523
	524	void MainWindow::buttonSolveClicked()
	525	{
	526	TMatrix matrix;
	527	QList<double> row;
	528	int n = spinCities->value();
	529	bool ok;
	530	for (int r = 0; r < n; r++) {
	531	row.clear();
	532	for (int c = 0; c < n; c++) {
	533	row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
	534	if (!ok) {
	535	QMessageBox::critical(this, tr("Data error"), tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1));
	536	return;
	537	}
	538	}
	539	matrix.append(row);
	540	}
	541
	542	QProgressDialog pd(this);
	543	QProgressBar *pb = new QProgressBar(&pd);
	544	pb->setAlignment(Qt::AlignCenter);
	545	pb->setFormat(tr("%v of %1 parts found").arg(n));
	546	pd.setBar(pb);
	547	pd.setMaximum(n);
	548	pd.setAutoReset(false);
	549	pd.setLabelText(tr("Calculating optimal route..."));
	550	pd.setWindowTitle(tr("Solution Progress"));
	551	pd.setWindowModality(Qt::ApplicationModal);
	552	pd.setWindowFlags(Qt::Dialog \| Qt::CustomizeWindowHint \| Qt::WindowTitleHint);
	553	pd.show();
	554
	555	CTSPSolver solver;
	556	connect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
	557	connect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
	558	SStep *root = solver.solve(n, matrix);
	559	disconnect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
	560	disconnect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
	561	if (!root) {
	562	pd.reset();
	563	if (!solver.wasCanceled())
	564	QMessageBox::warning(this, tr("Solution Result"), tr("Unable to find a solution.\nMaybe, this task has no solution."));
	565	return;
	566	}
	567	pb->setFormat(tr("Generating header"));
	568	pd.setLabelText(tr("Generating solution output..."));
[107]	569	pd.setMaximum(solver.getTotalSteps() + 1);
[100]	570	pd.setValue(0);
	571
	572	solutionText->clear();
[104]	573	solutionText->setDocumentTitle(tr("Solution of Variant #%1 Task").arg(spinVariant->value()));
	574
[106]	575	QPainter pic;
[107]	576	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool()) {
	577	pic.begin(&graph);
	578	pic.setRenderHint(QPainter::Antialiasing);
[109]	579	pic.setFont(settings->value("Output/Font", QFont(DEF_FONT_FAMILY, 9)).value<QFont>());
	580	pic.setBrush(QBrush(QColor(Qt::white)));
	581	pic.setBackgroundMode(Qt::OpaqueMode);
[107]	582	}
[106]	583
[104]	584	QTextDocument *doc = solutionText->document();
	585	QTextCursor cur(doc);
	586
	587	cur.beginEditBlock();
	588	cur.setBlockFormat(fmt_paragraph);
[106]	589	cur.insertText(tr("Variant #%1 Task").arg(spinVariant->value()), fmt_default);
[104]	590	cur.insertBlock(fmt_paragraph);
	591	cur.insertText(tr("Task:"));
	592	outputMatrix(cur, matrix);
[107]	593	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool())
	594	drawNode(pic, 0);
[104]	595	cur.insertHtml("<hr>");
	596	cur.insertBlock(fmt_paragraph);
[106]	597	int imgpos = cur.position();
	598	cur.insertText(tr("Variant #%1 Solution").arg(spinVariant->value()), fmt_default);
[104]	599	cur.endEditBlock();
	600
[100]	601	SStep *step = root;
[107]	602	int c = n = 1;
[100]	603	pb->setFormat(tr("Generating step %v"));
[107]	604	while ((step->next != SStep::NoNextStep) && (c < spinCities->value())) {
[100]	605	if (pd.wasCanceled()) {
[104]	606	pd.setLabelText(tr("Cleaning up..."));
	607	pd.setMaximum(0);
	608	pd.setCancelButton(NULL);
	609	pd.show();
	610	QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
	611	solver.cleanup(true);
[100]	612	solutionText->clear();
[104]	613	toggleSolutionActions(false);
[100]	614	return;
	615	}
	616	pd.setValue(n);
	617
[107]	618	cur.beginEditBlock();
	619	cur.insertBlock(fmt_paragraph);
	620	cur.insertText(tr("Step #%1").arg(n));
	621	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())))) {
	622	outputMatrix(cur, *step);
	623	}
	624	cur.insertBlock(fmt_paragraph);
	625	cur.insertText(tr("Selected route %1 %2 part.").arg((step->next == SStep::RightBranch) ? tr("with") : tr("without")).arg(tr("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)), fmt_default);
	626	if (!step->alts.empty()) {
	627	SStep::SCandidate cand;
	628	QString alts;
	629	foreach(cand, step->alts) {
	630	if (!alts.isEmpty())
	631	alts += ", ";
	632	alts += tr("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
[100]	633	}
[107]	634	cur.insertBlock(fmt_paragraph);
	635	cur.insertText(tr("%n alternate candidate(s) for branching: %1.", "", step->alts.count()).arg(alts), fmt_altlist);
[100]	636	}
[107]	637	cur.insertBlock(fmt_paragraph);
	638	cur.insertText(" ", fmt_default);
	639	cur.endEditBlock();
	640
	641	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool()) {
[106]	642	if (step->prNode != NULL)
[107]	643	drawNode(pic, n, false, step->prNode);
[106]	644	if (step->plNode != NULL)
[107]	645	drawNode(pic, n, true, step->plNode);
[106]	646	}
[107]	647	n++;
	648
	649	if (step->next == SStep::RightBranch) {
	650	c++;
[100]	651	step = step->prNode;
[107]	652	} else if (step->next == SStep::LeftBranch) {
[100]	653	step = step->plNode;
[106]	654	} else
[100]	655	break;
	656	}
	657	pb->setFormat(tr("Generating footer"));
	658	pd.setValue(n);
	659
[104]	660	cur.beginEditBlock();
	661	cur.insertBlock(fmt_paragraph);
[100]	662	if (solver.isOptimal())
[104]	663	cur.insertText(tr("Optimal path:"));
[100]	664	else
[104]	665	cur.insertText(tr("Resulting path:"));
	666
	667	cur.insertBlock(fmt_paragraph);
[110]	668	cur.insertText(" " + solver.getSortedPath(tr("City %1")));
[104]	669
	670	cur.insertBlock(fmt_paragraph);
[100]	671	if (isInteger(step->price))
[104]	672	cur.insertHtml("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
[100]	673	else
[104]	674	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>");
[100]	675	if (!solver.isOptimal()) {
[104]	676	cur.insertBlock(fmt_paragraph);
	677	cur.insertText(" ");
	678	cur.insertBlock(fmt_paragraph);
	679	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>");
[100]	680	}
[104]	681	cur.endEditBlock();
[100]	682
[107]	683	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool()) {
	684	pic.end();
	685
[106]	686	QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
[107]	687	i.fill(0);
	688	pic.begin(&i);
	689	pic.drawPicture(1, 1, graph);
	690	pic.end();
	691	doc->addResource(QTextDocument::ImageResource, QUrl("tspsg://graph.pic"), i);
[106]	692
	693	QTextImageFormat img;
[107]	694	img.setName("tspsg://graph.pic");
[106]	695
[107]	696	cur.setPosition(imgpos);
	697	cur.insertImage(img, QTextFrameFormat::FloatRight);
	698	}
[106]	699
[100]	700	if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
[104]	701	// Scrolling to the end of the text.
[100]	702	solutionText->moveCursor(QTextCursor::End);
	703	} else
	704	solutionText->moveCursor(QTextCursor::Start);
	705
	706	pd.setLabelText(tr("Cleaning up..."));
	707	pd.setMaximum(0);
	708	pd.setCancelButton(NULL);
	709	QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
	710	solver.cleanup(true);
	711	toggleSolutionActions();
	712	tabWidget->setCurrentIndex(1);
	713	}
	714
	715	void MainWindow::dataChanged()
	716	{
	717	setWindowModified(true);
	718	}
	719
	720	void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
	721	{
	722	setWindowModified(true);
	723	if (settings->value("Autosize", DEF_AUTOSIZE).toBool()) {
	724	for (int k = tl.row(); k <= br.row(); k++)
	725	taskView->resizeRowToContents(k);
	726	for (int k = tl.column(); k <= br.column(); k++)
	727	taskView->resizeColumnToContents(k);
	728	}
	729	}
	730
	731	#ifdef Q_OS_WINCE_WM
	732	void MainWindow::changeEvent(QEvent *ev)
	733	{
	734	if ((ev->type() == QEvent::ActivationChange) && isActiveWindow())
	735	desktopResized(0);
	736
	737	QWidget::changeEvent(ev);
	738	}
	739
	740	void MainWindow::desktopResized(int screen)
	741	{
	742	if ((screen != 0) \|\| !isActiveWindow())
	743	return;
	744
	745	QRect availableGeometry = QApplication::desktop()->availableGeometry(0);
	746	if (currentGeometry != availableGeometry) {
	747	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	748	/*!
	749	* \hack HACK: This hack checks whether \link QDesktopWidget::availableGeometry() availableGeometry()\endlink's \c top + \c hegiht = \link QDesktopWidget::screenGeometry() screenGeometry()\endlink's \c height.
	750	* If \c true, the window gets maximized. If we used \c setGeometry() in this case, the bottom of the
	751	* window would end up being behind the soft buttons. Is this a bug in Qt or Windows Mobile?
	752	*/
	753	if ((availableGeometry.top() + availableGeometry.height()) == QApplication::desktop()->screenGeometry().height()) {
	754	setWindowState(windowState() \| Qt::WindowMaximized);
	755	} else {
	756	if (windowState() & Qt::WindowMaximized)
	757	setWindowState(windowState() ^ Qt::WindowMaximized);
	758	setGeometry(availableGeometry);
	759	}
	760	currentGeometry = availableGeometry;
	761	QApplication::restoreOverrideCursor();
	762	}
	763	}
	764	#endif // Q_OS_WINCE_WM
	765
	766	void MainWindow::numCitiesChanged(int nCities)
	767	{
	768	blockSignals(true);
	769	spinCities->setValue(nCities);
	770	blockSignals(false);
	771	}
	772
	773	#ifndef QT_NO_PRINTER
	774	void MainWindow::printPreview(QPrinter *printer)
	775	{
	776	solutionText->print(printer);
	777	}
	778	#endif // QT_NO_PRINTER
	779
	780	void MainWindow::spinCitiesValueChanged(int n)
	781	{
	782	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	783	int count = tspmodel->numCities();
	784	tspmodel->setNumCities(n);
	785	if ((n > count) && settings->value("Autosize", DEF_AUTOSIZE).toBool())
	786	for (int k = count; k < n; k++) {
	787	taskView->resizeColumnToContents(k);
	788	taskView->resizeRowToContents(k);
	789	}
	790	QApplication::restoreOverrideCursor();
	791	}
	792
	793	void MainWindow::closeEvent(QCloseEvent *ev)
	794	{
	795	if (!maybeSave()) {
	796	ev->ignore();
	797	return;
	798	}
	799	if (!settings->value("SettingsReset", false).toBool()) {
	800	settings->setValue("NumCities", spinCities->value());
	801
	802	// Saving Main Window state
	803	if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
	804	settings->beginGroup("MainWindow");
	805	#ifndef HANDHELD
	806	settings->setValue("Geometry", saveGeometry());
	807	#endif // HANDHELD
	808	settings->setValue("State", saveState());
	809	settings->endGroup();
	810	}
	811	} else {
	812	settings->remove("SettingsReset");
	813	}
	814
	815	QMainWindow::closeEvent(ev);
	816	}
	817
[105]	818	void MainWindow::dragEnterEvent(QDragEnterEvent *ev)
	819	{
	820	if (ev->mimeData()->hasUrls() && (ev->mimeData()->urls().count() == 1)) {
	821	QFileInfo fi(ev->mimeData()->urls().first().toLocalFile());
	822	if ((fi.suffix() == "tspt") \|\| (fi.suffix() == "zkt"))
	823	ev->acceptProposedAction();
	824	}
	825	}
	826
[106]	827	void MainWindow::drawNode(QPainter &pic, int nstep, bool left, SStep *step)
	828	{
	829	const int r = 35;
	830	qreal x, y;
	831	if (step != NULL)
	832	x = left ? r : r * 3.5;
	833	else
	834	x = r * 2.25;
	835	y = r * (3 * nstep + 1);
	836
	837	pic.drawEllipse(QPointF(x, y), r, r);
	838
	839	if (step != NULL) {
	840	QFont font;
	841	if (left) {
	842	font = pic.font();
	843	font.setStrikeOut(true);
	844	pic.setFont(font);
	845	}
	846	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");
	847	if (left) {
	848	font.setStrikeOut(false);
	849	pic.setFont(font);
	850	}
[107]	851	if (step->price != INFINITY) {
	852	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()));
	853	} else {
	854	pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, "\n"INFSTR);
	855	}
[106]	856	} else {
	857	pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("Root"));
	858	}
	859
[107]	860	if (nstep == 1) {
	861	pic.drawLine(QPointF(x, y - r), QPointF(r * 2.25, y - 2 * r));
	862	} else if (nstep > 1) {
[110]	863	pic.drawLine(QPointF(x, y - r), QPointF((step->pNode->pNode->next == SStep::RightBranch) ? r * 3.5 : r, y - 2 * r));
[107]	864	}
[106]	865
	866	}
	867
[105]	868	void MainWindow::dropEvent(QDropEvent *ev)
	869	{
	870	if (maybeSave() && tspmodel->loadTask(ev->mimeData()->urls().first().toLocalFile())) {
	871	setFileName(ev->mimeData()->urls().first().toLocalFile());
	872	tabWidget->setCurrentIndex(0);
	873	setWindowModified(false);
	874	solutionText->clear();
	875	toggleSolutionActions(false);
	876
[107]	877	ev->setDropAction(Qt::CopyAction);
	878	ev->accept();
[105]	879	}
	880	}
	881
[100]	882	bool MainWindow::hasUpdater() const
	883	{
	884	#ifdef Q_OS_WIN32
	885	return QFile::exists("updater/Update.exe");
	886	#else // Q_OS_WIN32
	887	return false;
	888	#endif // Q_OS_WIN32
	889	}
	890
	891	void MainWindow::initDocStyleSheet()
	892	{
[104]	893	solutionText->document()->setDefaultFont(settings->value("Output/Font", QFont(DEF_FONT_FAMILY, DEF_FONT_SIZE)).value<QFont>());
	894
	895	fmt_paragraph.setTopMargin(0);
	896	fmt_paragraph.setRightMargin(10);
	897	fmt_paragraph.setBottomMargin(0);
	898	fmt_paragraph.setLeftMargin(10);
	899
	900	fmt_table.setTopMargin(5);
	901	fmt_table.setRightMargin(10);
	902	fmt_table.setBottomMargin(5);
	903	fmt_table.setLeftMargin(10);
	904	fmt_table.setBorder(0);
	905	fmt_table.setBorderStyle(QTextFrameFormat::BorderStyle_None);
	906	fmt_table.setCellSpacing(5);
	907
[106]	908	fmt_cell.setAlignment(Qt::AlignHCenter);
[104]	909
	910	QColor color = settings->value("Output/Colors/Text", DEF_TEXT_COLOR).value<QColor>();
[100]	911	QColor hilight;
	912	if (color.value() < 192)
[104]	913	hilight.setHsv(color.hue(), color.saturation(), 127 + qRound(color.value() / 2));
[100]	914	else
[104]	915	hilight.setHsv(color.hue(), color.saturation(), color.value() / 2);
	916
	917	solutionText->document()->setDefaultStyleSheet(QString("* {color: %1;}").arg(color.name()));
	918	fmt_default.setForeground(QBrush(color));
	919
	920	fmt_selected.setForeground(QBrush(settings->value("Output/Colors/Selected", DEF_SELECTED_COLOR).value<QColor>()));
	921	fmt_selected.setFontWeight(QFont::Bold);
	922
	923	fmt_alternate.setForeground(QBrush(settings->value("Output/Colors/Alternate", DEF_ALTERNATE_COLOR).value<QColor>()));
	924	fmt_alternate.setFontWeight(QFont::Bold);
	925	fmt_altlist.setForeground(QBrush(hilight));
	926
	927	solutionText->setTextColor(color);
[100]	928	}
	929
	930	void MainWindow::loadLangList()
	931	{
	932	QDir dir(PATH_L10N, "tspsg_*.qm", QDir::Name \| QDir::IgnoreCase, QDir::Files);
	933	if (!dir.exists())
	934	return;
	935	QFileInfoList langs = dir.entryInfoList();
	936	if (langs.size() <= 0)
	937	return;
	938	QAction *a;
	939	QTranslator t;
	940	QString name;
	941	for (int k = 0; k < langs.size(); k++) {
	942	QFileInfo lang = langs.at(k);
	943	if (lang.completeBaseName().compare("tspsg_en", Qt::CaseInsensitive) && t.load(lang.completeBaseName(), PATH_L10N)) {
	944	name = t.translate("--------", "LANGNAME", "Please, provide a native name of your translation language here.");
	945	a = menuSettingsLanguage->addAction(name);
	946	a->setStatusTip(QString("Set application language to %1").arg(name));
	947	a->setData(lang.completeBaseName().mid(6));
	948	a->setCheckable(true);
	949	a->setActionGroup(groupSettingsLanguageList);
	950	if (settings->value("Language", QLocale::system().name()).toString().startsWith(lang.completeBaseName().mid(6)))
	951	a->setChecked(true);
	952	}
	953	}
	954	}
	955
	956	bool MainWindow::loadLanguage(const QString &lang)
	957	{
	958	// i18n
	959	bool ad = false;
	960	QString lng = lang;
	961	if (lng.isEmpty()) {
	962	ad = settings->value("Language", "").toString().isEmpty();
	963	lng = settings->value("Language", QLocale::system().name()).toString();
	964	}
	965	static QTranslator *qtTranslator; // Qt library translator
	966	if (qtTranslator) {
	967	qApp->removeTranslator(qtTranslator);
	968	delete qtTranslator;
	969	qtTranslator = NULL;
	970	}
	971	static QTranslator *translator; // Application translator
	972	if (translator) {
	973	qApp->removeTranslator(translator);
	974	delete translator;
	975	translator = NULL;
	976	}
	977
	978	if (lng == "en")
	979	return true;
	980
	981	// Trying to load system Qt library translation...
	982	qtTranslator = new QTranslator(this);
	983	if (qtTranslator->load("qt_" + lng, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
	984	qApp->installTranslator(qtTranslator);
	985	else {
	986	// No luck. Let's try to load a bundled one.
	987	if (qtTranslator->load("qt_" + lng, PATH_L10N))
	988	qApp->installTranslator(qtTranslator);
	989	else {
	990	// Qt library translation unavailable
	991	delete qtTranslator;
	992	qtTranslator = NULL;
	993	}
	994	}
	995
	996	// Now let's load application translation.
	997	translator = new QTranslator(this);
	998	if (translator->load("tspsg_" + lng, PATH_L10N))
	999	qApp->installTranslator(translator);
	1000	else {
	1001	delete translator;
	1002	translator = NULL;
	1003	if (!ad) {
	1004	settings->remove("Language");
	1005	QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
	1006	if (isVisible())
	1007	QMessageBox::warning(this, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
	1008	else
	1009	QMessageBox::warning(NULL, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
	1010	QApplication::restoreOverrideCursor();
	1011	}
	1012	return false;
	1013	}
	1014	return true;
	1015	}
	1016
	1017	bool MainWindow::maybeSave()
	1018	{
	1019	if (!isWindowModified())
	1020	return true;
	1021	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);
	1022	if (res == QMessageBox::Save)
	1023	return actionFileSaveTriggered();
	1024	else if (res == QMessageBox::Cancel)
	1025	return false;
	1026	else
	1027	return true;
	1028	}
	1029
[104]	1030	void MainWindow::outputMatrix(QTextCursor &cur, const TMatrix &matrix)
[100]	1031	{
	1032	int n = spinCities->value();
[104]	1033	QTextTable *table = cur.insertTable(n, n, fmt_table);
	1034
[100]	1035	for (int r = 0; r < n; r++) {
	1036	for (int c = 0; c < n; c++) {
[104]	1037	cur = table->cellAt(r, c).firstCursorPosition();
[106]	1038	cur.setBlockFormat(fmt_cell);
[104]	1039	cur.setBlockCharFormat(fmt_default);
[100]	1040	if (matrix.at(r).at(c) == INFINITY)
[104]	1041	cur.insertText(INFSTR);
[100]	1042	else
[104]	1043	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()));
[100]	1044	}
[104]	1045	QApplication::processEvents();
[100]	1046	}
[104]	1047	cur.movePosition(QTextCursor::End);
[100]	1048	}
	1049
[104]	1050	void MainWindow::outputMatrix(QTextCursor &cur, const SStep &step)
[100]	1051	{
	1052	int n = spinCities->value();
[104]	1053	QTextTable *table = cur.insertTable(n, n, fmt_table);
	1054
[100]	1055	for (int r = 0; r < n; r++) {
	1056	for (int c = 0; c < n; c++) {
[104]	1057	cur = table->cellAt(r, c).firstCursorPosition();
[106]	1058	cur.setBlockFormat(fmt_cell);
[100]	1059	if (step.matrix.at(r).at(c) == INFINITY)
[104]	1060	cur.insertText(INFSTR, fmt_default);
[100]	1061	else if ((r == step.candidate.nRow) && (c == step.candidate.nCol))
[104]	1062	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);
[100]	1063	else {
[107]	1064	SStep::SCandidate cand;
[100]	1065	cand.nRow = r;
	1066	cand.nCol = c;
	1067	if (step.alts.contains(cand))
[104]	1068	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);
[100]	1069	else
[104]	1070	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);
[100]	1071	}
	1072	}
[104]	1073	QApplication::processEvents();
[100]	1074	}
[104]	1075
	1076	cur.movePosition(QTextCursor::End);
[100]	1077	}
	1078
	1079	void MainWindow::retranslateUi(bool all)
	1080	{
	1081	if (all)
	1082	Ui::MainWindow::retranslateUi(this);
	1083
	1084	actionSettingsLanguageEnglish->setStatusTip(tr("Set application language to %1").arg("English"));
	1085
	1086	#ifndef QT_NO_PRINTER
	1087	actionFilePrintPreview->setText(QApplication::translate("MainWindow", "P&rint Preview...", 0, QApplication::UnicodeUTF8));
	1088	#ifndef QT_NO_TOOLTIP
	1089	actionFilePrintPreview->setToolTip(QApplication::translate("MainWindow", "Preview solution results", 0, QApplication::UnicodeUTF8));
	1090	#endif // QT_NO_TOOLTIP
	1091	#ifndef QT_NO_STATUSTIP
	1092	actionFilePrintPreview->setStatusTip(QApplication::translate("MainWindow", "Preview current solution results before printing", 0, QApplication::UnicodeUTF8));
	1093	#endif // QT_NO_STATUSTIP
	1094
	1095	actionFilePrint->setText(QApplication::translate("MainWindow", "&Print...", 0, QApplication::UnicodeUTF8));
	1096	#ifndef QT_NO_TOOLTIP
	1097	actionFilePrint->setToolTip(QApplication::translate("MainWindow", "Print solution", 0, QApplication::UnicodeUTF8));
	1098	#endif // QT_NO_TOOLTIP
	1099	#ifndef QT_NO_STATUSTIP
	1100	actionFilePrint->setStatusTip(QApplication::translate("MainWindow", "Print current solution results", 0, QApplication::UnicodeUTF8));
	1101	#endif // QT_NO_STATUSTIP
	1102	actionFilePrint->setShortcut(QApplication::translate("MainWindow", "Ctrl+P", 0, QApplication::UnicodeUTF8));
	1103	#endif // QT_NO_PRINTER
	1104	#ifdef Q_OS_WIN32
	1105	actionHelpCheck4Updates->setText(tr("Check for &Updates..."));
	1106	#ifndef QT_NO_TOOLTIP
	1107	actionHelpCheck4Updates->setToolTip(tr("Check for %1 updates").arg(QApplication::applicationName()));
	1108	#endif // QT_NO_TOOLTIP
	1109	#ifndef QT_NO_STATUSTIP
	1110	actionHelpCheck4Updates->setStatusTip(tr("Check for %1 updates").arg(QApplication::applicationName()));
	1111	#endif // QT_NO_STATUSTIP
	1112	#endif // Q_OS_WIN32
	1113	}
	1114
	1115	bool MainWindow::saveTask() {
	1116	QStringList filters(tr("%1 Task File").arg("TSPSG") + " (*.tspt)");
	1117	filters.append(tr("All Files") + " (*)");
	1118	QString file;
	1119	if (fileName.endsWith(".tspt", Qt::CaseInsensitive))
	1120	file = fileName;
	1121	else
	1122	file = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt";
	1123
	1124	QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
	1125	file = QFileDialog::getSaveFileName(this, tr("Task Save"), file, filters.join(";;"), NULL, opts);
	1126
	1127	if (file.isEmpty())
	1128	return false;
	1129	if (tspmodel->saveTask(file)) {
	1130	setFileName(file);
	1131	setWindowModified(false);
	1132	return true;
	1133	}
	1134	return false;
	1135	}
	1136
	1137	void MainWindow::setFileName(const QString &fileName)
	1138	{
	1139	this->fileName = fileName;
	1140	setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(tr("Travelling Salesman Problem")));
	1141	}
	1142
	1143	void MainWindow::setupUi()
	1144	{
	1145	Ui::MainWindow::setupUi(this);
	1146
	1147	#if QT_VERSION >= 0x040600
	1148	setToolButtonStyle(Qt::ToolButtonFollowStyle);
	1149	#endif
	1150
	1151	#ifndef HANDHELD
	1152	QStatusBar *statusbar = new QStatusBar(this);
	1153	statusbar->setObjectName("statusbar");
	1154	setStatusBar(statusbar);
	1155	#endif // HANDHELD
	1156
	1157	#ifdef Q_OS_WINCE_WM
	1158	menuBar()->setDefaultAction(menuFile->menuAction());
	1159
	1160	QScrollArea *scrollArea = new QScrollArea(this);
	1161	scrollArea->setFrameShape(QFrame::NoFrame);
	1162	scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	1163	scrollArea->setWidgetResizable(true);
	1164	scrollArea->setWidget(tabWidget);
	1165	setCentralWidget(scrollArea);
	1166	#else
	1167	setCentralWidget(tabWidget);
	1168	#endif // Q_OS_WINCE_WM
	1169
	1170	//! \hack HACK: A little hack for toolbar icons to have a sane size.
	1171	#ifdef Q_OS_WINCE_WM
	1172	toolBar->setIconSize(QSize(logicalDpiX() / 4, logicalDpiY() / 4));
	1173	#elif defined(Q_OS_SYMBIAN)
	1174	toolBar->setIconSize(QSize(logicalDpiX() / 5, logicalDpiY() / 5));
	1175	#endif // Q_OS_WINCE_WM
	1176
[104]	1177	solutionText->document()->setDefaultFont(settings->value("Output/Font", QFont(DEF_FONT_FAMILY, DEF_FONT_SIZE)).value<QFont>());
[100]	1178	solutionText->setWordWrapMode(QTextOption::WordWrap);
	1179
	1180	#ifndef QT_NO_PRINTER
	1181	actionFilePrintPreview = new QAction(this);
	1182	actionFilePrintPreview->setObjectName("actionFilePrintPreview");
	1183	actionFilePrintPreview->setEnabled(false);
	1184	actionFilePrintPreview->setIcon(QIcon(":/images/icons/document_preview.png"));
	1185
	1186	actionFilePrint = new QAction(this);
	1187	actionFilePrint->setObjectName("actionFilePrint");
	1188	actionFilePrint->setEnabled(false);
	1189	actionFilePrint->setIcon(QIcon(":/images/icons/fileprint.png"));
	1190
	1191	menuFile->insertAction(actionFileExit,actionFilePrintPreview);
	1192	menuFile->insertAction(actionFileExit,actionFilePrint);
	1193	menuFile->insertSeparator(actionFileExit);
	1194
	1195	toolBar->insertAction(actionSettingsPreferences,actionFilePrint);
	1196	#endif // QT_NO_PRINTER
	1197	#ifdef Q_OS_WIN32
	1198	actionHelpCheck4Updates = new QAction(this);
	1199	actionHelpCheck4Updates->setEnabled(hasUpdater());
	1200	menuHelp->insertAction(actionHelpAboutQt, actionHelpCheck4Updates);
	1201	menuHelp->insertSeparator(actionHelpAboutQt);
	1202	#endif // Q_OS_WIN32
	1203
	1204	groupSettingsLanguageList = new QActionGroup(this);
	1205	actionSettingsLanguageEnglish->setData("en");
	1206	actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
	1207	loadLangList();
	1208	actionSettingsLanguageAutodetect->setChecked(settings->value("Language", "").toString().isEmpty());
	1209
	1210	spinCities->setMaximum(MAX_NUM_CITIES);
	1211
	1212	retranslateUi(false);
	1213
	1214	#ifdef Q_OS_WIN32
	1215	// Adding some eyecandy in Vista and 7 :-)
	1216	if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool()) {
	1217	toggleTranclucency(true);
	1218	}
	1219	#endif // Q_OS_WIN32
	1220	}
	1221
	1222	void MainWindow::toggleSolutionActions(bool enable)
	1223	{
	1224	buttonSaveSolution->setEnabled(enable);
	1225	actionFileSaveAsSolution->setEnabled(enable);
	1226	solutionText->setEnabled(enable);
	1227	#ifndef QT_NO_PRINTER
	1228	actionFilePrint->setEnabled(enable);
	1229	actionFilePrintPreview->setEnabled(enable);
	1230	#endif // QT_NO_PRINTER
	1231	}
	1232
	1233	void MainWindow::toggleTranclucency(bool enable)
	1234	{
	1235	#ifdef Q_OS_WIN32
	1236	toggleStyle(labelVariant, enable);
	1237	toggleStyle(labelCities, enable);
	1238	toggleStyle(statusBar(), enable);
	1239	tabWidget->setDocumentMode(enable);
	1240	QtWin::enableBlurBehindWindow(this, enable);
	1241	#else
	1242	Q_UNUSED(enable);
	1243	#endif // Q_OS_WIN32
	1244	}

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