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source: tspsg-svn/trunk/src/mainwindow.cpp @ 81

Last change on this file since 81 was 81, checked in by laleppa, 15 years ago

+ Added the ability to generate fractional random numbers.
+ Added "Scroll to the end of solution output after solving" option.

Set the accuracy for fractional numbers on output to 2 decimail places.
Updated translations to reflect changes.

Property svn:keywords set to Id URL

File size: 29.6 KB

Rev	Line
[45]	1	/*
[42]	2	* TSPSG: TSP Solver and Generator
[17]	3	* Copyright (C) 2007-2009 Lёppa <contacts[at]oleksii[dot]name>
[1]	4	*
[6]	5	* $Id: mainwindow.cpp 81 2010-01-07 01:24:18Z laleppa $
	6	* $URL: https://tspsg.svn.sourceforge.net/svnroot/tspsg/trunk/src/mainwindow.cpp $
[4]	7	*
[6]	8	* This file is part of TSPSG.
[1]	9	*
[6]	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.
[1]	14	*
[6]	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.
[1]	19	*
[6]	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/>.
[1]	22	*/
	23
	24	#include "mainwindow.h"
	25
[65]	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	*/
[1]	33	MainWindow::MainWindow(QWidget *parent)
[21]	34	: QMainWindow(parent)
[1]	35	{
[80]	36	settings = new QSettings(QSettings::IniFormat, QSettings::UserScope, "TSPSG", "tspsg", this);
[29]	37	loadLanguage();
[80]	38	setupUi();
	39
[42]	40	initDocStyleSheet();
[80]	41
[54]	42	#ifndef QT_NO_PRINTER
[52]	43	printer = new QPrinter(QPrinter::HighResolution);
[54]	44	#endif // QT_NO_PRINTER
[80]	45
[29]	46	connect(actionFileNew,SIGNAL(triggered()),this,SLOT(actionFileNewTriggered()));
[31]	47	connect(actionFileOpen,SIGNAL(triggered()),this,SLOT(actionFileOpenTriggered()));
[50]	48	connect(actionFileSave,SIGNAL(triggered()),this,SLOT(actionFileSaveTriggered()));
[42]	49	connect(actionFileSaveAsTask,SIGNAL(triggered()),this,SLOT(actionFileSaveAsTaskTriggered()));
	50	connect(actionFileSaveAsSolution,SIGNAL(triggered()),this,SLOT(actionFileSaveAsSolutionTriggered()));
[80]	51	#ifndef QT_NO_PRINTER
	52	connect(actionFilePrintPreview,SIGNAL(triggered()),this,SLOT(actionFilePrintPreviewTriggered()));
	53	connect(actionFilePrint,SIGNAL(triggered()),this,SLOT(actionFilePrintTriggered()));
	54	#endif // QT_NO_PRINTER
[29]	55	connect(actionSettingsPreferences,SIGNAL(triggered()),this,SLOT(actionSettingsPreferencesTriggered()));
	56	connect(actionSettingsLanguageAutodetect,SIGNAL(triggered(bool)),this,SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
	57	connect(groupSettingsLanguageList,SIGNAL(triggered(QAction )),this,SLOT(groupSettingsLanguageListTriggered(QAction )));
[37]	58	connect(actionHelpAboutQt,SIGNAL(triggered()),qApp,SLOT(aboutQt()));
[29]	59	connect(actionHelpAbout,SIGNAL(triggered()),this,SLOT(actionHelpAboutTriggered()));
[80]	60
[29]	61	connect(buttonSolve,SIGNAL(clicked()),this,SLOT(buttonSolveClicked()));
	62	connect(buttonRandom,SIGNAL(clicked()),this,SLOT(buttonRandomClicked()));
[50]	63	connect(buttonBackToTask,SIGNAL(clicked()),this,SLOT(buttonBackToTaskClicked()));
[29]	64	connect(spinCities,SIGNAL(valueChanged(int)),this,SLOT(spinCitiesValueChanged(int)));
[71]	65
	66	if (settings->value("SavePos", false).toBool()) {
[21]	67	// Loading of saved window state
[23]	68	settings->beginGroup("MainWindow");
[71]	69	#ifndef Q_OS_WINCE
	70	restoreGeometry(settings->value("Geometry").toByteArray());
	71	#endif // Q_OS_WINCE
	72	restoreState(settings->value("State").toByteArray());
[23]	73	settings->endGroup();
[71]	74	#ifndef Q_OS_WINCE
[21]	75	} else {
	76	// Centering main window
[71]	77	QRect rect = geometry();
[21]	78	rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
	79	setGeometry(rect);
[71]	80	#endif // Q_OS_WINCE
[21]	81	}
[71]	82
	83	tspmodel = new CTSPModel(this);
[52]	84	taskView->setModel(tspmodel);
[31]	85	connect(tspmodel,SIGNAL(numCitiesChanged(int)),this,SLOT(numCitiesChanged(int)));
[57]	86	connect(tspmodel,SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),this,SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
[37]	87	connect(tspmodel,SIGNAL(layoutChanged()),this,SLOT(dataChanged()));
[50]	88	if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
[47]	89	setFileName(QCoreApplication::arguments().at(1));
[50]	90	else {
[47]	91	setFileName();
[50]	92	spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
[52]	93	spinCitiesValueChanged(spinCities->value());
[50]	94	}
	95	setWindowModified(false);
[6]	96	}
	97
[80]	98	MainWindow::~MainWindow()
	99	{
	100	#ifndef QT_NO_PRINTER
	101	delete printer;
	102	#endif
	103	}
	104
[67]	105	/* Privates **********************************************************/
[42]	106
[29]	107	void MainWindow::actionFileNewTriggered()
[1]	108	{
[47]	109	if (!maybeSave())
	110	return;
[54]	111	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[29]	112	tspmodel->clear();
[47]	113	setFileName();
[37]	114	setWindowModified(false);
[42]	115	tabWidget->setCurrentIndex(0);
	116	solutionText->clear();
[78]	117	toggleSolutionActions(false);
[54]	118	QApplication::restoreOverrideCursor();
[29]	119	}
	120
[31]	121	void MainWindow::actionFileOpenTriggered()
	122	{
[47]	123	if (!maybeSave())
	124	return;
[78]	125
[31]	126	QStringList filters(trUtf8("All Supported Formats") + " (.tspt .zkt)");
[47]	127	filters.append(trUtf8("%1 Task Files").arg("TSPSG") + " (*.tspt)");
	128	filters.append(trUtf8("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
[31]	129	filters.append(trUtf8("All Files") + " (*)");
[78]	130
[80]	131	#ifdef Q_OS_WINCE
	132	QString file = QFileDialog::getOpenFileName(this, trUtf8("Task Load"), QString(), filters.join(";;"), NULL, QFileDialog::DontUseNativeDialog);
	133	#else
[78]	134	QString file = QFileDialog::getOpenFileName(this, trUtf8("Task Load"), QString(), filters.join(";;"));
[80]	135	#endif // Q_OS_WINCE
[78]	136	if (file.isEmpty() \|\| !QFileInfo(file).isFile())
[31]	137	return;
[78]	138	if (!tspmodel->loadTask(file))
[31]	139	return;
[78]	140	setFileName(file);
[47]	141	tabWidget->setCurrentIndex(0);
[37]	142	setWindowModified(false);
[42]	143	solutionText->clear();
[78]	144	toggleSolutionActions(false);
[31]	145	}
	146
[50]	147	void MainWindow::actionFileSaveTriggered()
	148	{
	149	if ((fileName == trUtf8("Untitled") + ".tspt") \|\| (!fileName.endsWith(".tspt",Qt::CaseInsensitive)))
	150	saveTask();
[59]	151	else
[50]	152	if (tspmodel->saveTask(fileName))
	153	setWindowModified(false);
	154	}
	155
[42]	156	void MainWindow::actionFileSaveAsTaskTriggered()
[31]	157	{
[37]	158	saveTask();
	159	}
	160
[42]	161	void MainWindow::actionFileSaveAsSolutionTriggered()
	162	{
	163	static QString selectedFile;
[78]	164	if (selectedFile.isEmpty()) {
	165	if (fileName == trUtf8("Untitled") + ".tspt") {
[55]	166	#ifndef QT_NO_PRINTER
[78]	167	selectedFile = "solution.pdf";
[55]	168	#else
[78]	169	selectedFile = "solution.html";
[55]	170	#endif // QT_NO_PRINTER
[78]	171	} else {
	172	#ifndef QT_NO_PRINTER
	173	selectedFile = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".pdf";
	174	#else
	175	selectedFile = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".html";
	176	#endif // QT_NO_PRINTER
	177	}
	178	}
	179
[55]	180	QStringList filters;
	181	#ifndef QT_NO_PRINTER
[78]	182	filters.append(trUtf8("PDF Files") + " (*.pdf)");
[55]	183	#endif
	184	filters.append(trUtf8("HTML Files") + " (.html .htm)");
[45]	185	#if QT_VERSION >= 0x040500
[42]	186	filters.append(trUtf8("OpenDocument Files") + " (*.odt)");
[45]	187	#endif // QT_VERSION >= 0x040500
[42]	188	filters.append(trUtf8("All Files") + " (*)");
[78]	189
[80]	190	#ifdef Q_OS_WINCE
	191	QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, QFileDialog::DontUseNativeDialog);
	192	#else
[78]	193	QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"));
[80]	194	#endif
[78]	195	if (file.isEmpty())
[42]	196	return;
[78]	197	selectedFile = file;
[51]	198	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[55]	199	#ifndef QT_NO_PRINTER
	200	if (selectedFile.endsWith(".pdf",Qt::CaseInsensitive)) {
	201	QPrinter printer(QPrinter::HighResolution);
	202	printer.setOutputFormat(QPrinter::PdfFormat);
	203	printer.setOutputFileName(selectedFile);
	204	solutionText->document()->print(&printer);
	205	QApplication::restoreOverrideCursor();
	206	return;
	207	}
	208	#endif
[45]	209	#if QT_VERSION >= 0x040500
[42]	210	QTextDocumentWriter dw(selectedFile);
	211	if (!(selectedFile.endsWith(".htm",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".html",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".odt",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".txt",Qt::CaseInsensitive)))
	212	dw.setFormat("plaintext");
	213	dw.write(solutionText->document());
[45]	214	#else
	215	// Qt < 4.5 has no QTextDocumentWriter class
	216	QFile file(selectedFile);
[51]	217	if (!file.open(QFile::WriteOnly)) {
	218	QApplication::restoreOverrideCursor();
[45]	219	return;
[51]	220	}
[45]	221	QTextStream ts(&file);
	222	ts.setCodec(QTextCodec::codecForName("UTF-8"));
	223	ts << solutionText->document()->toHtml("UTF-8");
[51]	224	file.close();
[45]	225	#endif // QT_VERSION >= 0x040500
[51]	226	QApplication::restoreOverrideCursor();
[42]	227	}
	228
[67]	229	#ifndef QT_NO_PRINTER
	230	void MainWindow::actionFilePrintPreviewTriggered()
	231	{
	232	QPrintPreviewDialog ppd(printer, this);
	233	connect(&ppd,SIGNAL(paintRequested(QPrinter )),SLOT(printPreview(QPrinter )));
	234	ppd.exec();
[31]	235	}
	236
[67]	237	void MainWindow::actionFilePrintTriggered()
	238	{
	239	QPrintDialog pd(printer,this);
	240	#if QT_VERSION >= 0x040500
	241	// No such methods in Qt < 4.5
	242	pd.setOption(QAbstractPrintDialog::PrintSelection,false);
	243	pd.setOption(QAbstractPrintDialog::PrintPageRange,false);
	244	#endif
	245	if (pd.exec() != QDialog::Accepted)
	246	return;
	247	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	248	solutionText->document()->print(printer);
	249	QApplication::restoreOverrideCursor();
	250	}
	251	#endif // QT_NO_PRINTER
	252
[29]	253	void MainWindow::actionSettingsPreferencesTriggered()
	254	{
[1]	255	SettingsDialog sd(this);
[42]	256	if (sd.exec() != QDialog::Accepted)
	257	return;
	258	if (sd.colorChanged() \|\| sd.fontChanged()) {
	259	initDocStyleSheet();
	260	if (!output.isEmpty() && sd.colorChanged() && (QMessageBox(QMessageBox::Question,trUtf8("Settings Changed"),trUtf8("You have changed color settings.\nDo you wish to apply them to current solution text?"),QMessageBox::Yes \| QMessageBox::No,this).exec() == QMessageBox::Yes)) {
	261	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	262	solutionText->clear();
	263	solutionText->setHtml(output.join(""));
	264	QApplication::restoreOverrideCursor();
	265	}
	266	}
[1]	267	}
[6]	268
[67]	269	void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
[17]	270	{
[67]	271	if (checked) {
	272	settings->remove("Language");
	273	QMessageBox(QMessageBox::Information,trUtf8("Language change"),trUtf8("Language will be autodetected on next application start."),QMessageBox::Ok,this).exec();
	274	} else
	275	settings->setValue("Language",groupSettingsLanguageList->checkedAction()->data().toString());
[52]	276	}
	277
[67]	278	void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
[52]	279	{
[67]	280	if (actionSettingsLanguageAutodetect->isChecked()) {
	281	// We have language autodetection. It needs to be disabled to change language.
	282	if (QMessageBox(QMessageBox::Question,trUtf8("Language change"),trUtf8("You have language autodetection turned on.\nIt needs to be off.\nDo you wish to turn it off?"),QMessageBox::Yes \| QMessageBox::No,this).exec() == QMessageBox::Yes) {
	283	actionSettingsLanguageAutodetect->trigger();
	284	} else
	285	return;
	286	}
	287	bool untitled = (fileName == trUtf8("Untitled") + ".tspt");
	288	if (loadLanguage(action->data().toString())) {
[80]	289	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[67]	290	settings->setValue("Language",action->data().toString());
[80]	291	retranslateUi();
[67]	292	if (untitled)
	293	setFileName();
[80]	294	QApplication::restoreOverrideCursor();
[67]	295	}
[52]	296	}
	297
[67]	298	void MainWindow::actionHelpAboutTriggered()
[52]	299	{
[67]	300	//! \todo TODO: Normal about window :-)
[78]	301	QString title;
	302	#ifdef Q_OS_WINCE
	303	title += QString::fromUtf8("<b>TSPSG<br>TSP Solver and Generator</b><br>");
	304	#else
	305	title += QString::fromUtf8("<b>TSPSG: TSP Solver and Generator</b><br>");
	306	#endif // Q_OS_WINCE
	307	title += QString::fromUtf8("Version: <b>"BUILD_VERSION"</b><br>");
	308	title += QString::fromUtf8("<b>© 2007-%1 Lёppa</b><br>").arg(QDate::currentDate().toString("yyyy"));
	309	title += QString::fromUtf8("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sf.net/</a></b><br>");
	310	QString about;
[74]	311	about += QString::fromUtf8("Target OS: <b>%1</b><br>").arg(OS);
[78]	312	#ifndef STATIC_BUILD
	313	about += "Qt library (shared):<br>";
[74]	314	about += QString::fromUtf8("    Build time: <b>%1</b><br>").arg(QT_VERSION_STR);
	315	about += QString::fromUtf8("    Runtime: <b>%1</b><br>").arg(qVersion());
[78]	316	#else
	317	about += QString::fromUtf8("Qt library: <b>%1</b> (static)<br>").arg(QT_VERSION_STR);
	318	#endif // STATIC_BUILD
[74]	319	about += QString::fromUtf8("Built on <b>%1</b> at <b>%2</b><br>").arg(__DATE__).arg(__TIME__);
[78]	320	about += "<br>";
[74]	321	about += QString::fromUtf8("Id: <b>"VERSIONID"</b><br>");
	322	about += QString::fromUtf8("Algorithm: <b>%1</b><br>").arg(CTSPSolver::getVersionId());
	323	about += "<br>";
	324	about += "TSPSG is free software: you can redistribute it and/or modify it<br>"
	325	"under the terms of the GNU General Public License as published<br>"
	326	"by the Free Software Foundation, either version 3 of the License,<br>"
	327	"or (at your option) any later version.<br>"
	328	"<br>"
	329	"TSPSG is distributed in the hope that it will be useful, but<br>"
	330	"WITHOUT ANY WARRANTY; without even the implied warranty of<br>"
	331	"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>"
	332	"GNU General Public License for more details.<br>"
	333	"<br>"
	334	"You should have received a copy of the GNU General Public License<br>"
	335	"along with TSPSG. If not, see <a href=\"http://www.gnu.org/licenses/\">http://www.gnu.org/licenses/</a>.";
	336
	337	QDialog *dlg = new QDialog(this);
[78]	338	QLabel *lblIcon = new QLabel(dlg),
	339	*lblTitle = new QLabel(dlg);
[74]	340	QTextBrowser *txtAbout = new QTextBrowser(dlg);
[78]	341	QVBoxLayout *vb = new QVBoxLayout();
[74]	342	QHBoxLayout *hb = new QHBoxLayout();
	343	QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok, Qt::Horizontal, dlg);
	344
[78]	345	lblIcon->setPixmap(QPixmap(":/images/tspsg.png").scaledToWidth(logicalDpiX() * 2 / 3, Qt::SmoothTransformation));
	346	lblIcon->setAlignment(Qt::AlignTop);
[80]	347	lblTitle->setOpenExternalLinks(true);
[78]	348	lblTitle->setText(title);
[74]	349
[78]	350	hb->addWidget(lblIcon);
	351	hb->addWidget(lblTitle);
	352	hb->addStretch();
[74]	353
	354	// txtAbout->setTextInteractionFlags(txtAbout->textInteractionFlags() ^ Qt::TextEditable);
	355	txtAbout->setWordWrapMode(QTextOption::NoWrap);
	356	txtAbout->setOpenExternalLinks(true);
	357	txtAbout->setHtml(about);
	358	txtAbout->moveCursor(QTextCursor::Start);
	359
[78]	360	vb->addLayout(hb);
	361	vb->addWidget(txtAbout);
	362	vb->addWidget(bb);
[74]	363
[78]	364	dlg->setWindowFlags(Qt::Dialog \| Qt::CustomizeWindowHint \| Qt::WindowTitleHint \| Qt::WindowCloseButtonHint);
[74]	365	dlg->setWindowTitle(trUtf8("About TSPSG"));
[78]	366	dlg->setLayout(vb);
[74]	367
	368	connect(bb, SIGNAL(accepted()), dlg, SLOT(accept()));
	369
[78]	370	dlg->resize(410, 300);
[74]	371	dlg->exec();
	372
	373	delete dlg;
[17]	374	}
	375
[50]	376	void MainWindow::buttonBackToTaskClicked()
	377	{
	378	tabWidget->setCurrentIndex(0);
	379	}
	380
[67]	381	void MainWindow::buttonRandomClicked()
[42]	382	{
[67]	383	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	384	tspmodel->randomize();
	385	QApplication::restoreOverrideCursor();
[42]	386	}
	387
[29]	388	void MainWindow::buttonSolveClicked()
[6]	389	{
[74]	390	TMatrix matrix;
[42]	391	QList<double> row;
[15]	392	int n = spinCities->value();
[13]	393	bool ok;
[15]	394	for (int r = 0; r < n; r++) {
[42]	395	row.clear();
[15]	396	for (int c = 0; c < n; c++) {
[42]	397	row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
[15]	398	if (!ok) {
[47]	399	QMessageBox(QMessageBox::Critical,trUtf8("Data error"),trUtf8("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1),QMessageBox::Ok,this).exec();
[15]	400	return;
[13]	401	}
	402	}
	403	matrix.append(row);
	404	}
	405	CTSPSolver solver;
[74]	406	SStep *root = solver.solve(n,matrix,this);
[13]	407	if (!root)
[42]	408	return;
	409	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	410	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
	411	output.clear();
	412	output.append("<p>" + trUtf8("Variant #%1").arg(spinVariant->value()) + "</p>");
	413	output.append("<p>" + trUtf8("Task:") + "</p>");
[78]	414	outputMatrix(matrix, output);
[42]	415	output.append("<hr>");
	416	output.append("<p>" + trUtf8("Solution of Variant #%1 task").arg(spinVariant->value()) + "</p>");
[74]	417	SStep *step = root;
[42]	418	n = 1;
	419	while (n <= spinCities->value()) {
[74]	420	if (step->prNode->prNode != NULL \|\| ((step->prNode->prNode == NULL) && (step->plNode->prNode == NULL))) {
[42]	421	if (n != spinCities->value()) {
	422	output.append("<p>" + trUtf8("Step #%1").arg(n++) + "</p>");
[78]	423	if (settings->value("Output/ShowMatrix", DEF_SHOW_MATRIX).toBool() && settings->value("Output/UseShowMatrixLimit", DEF_USE_SHOW_MATRIX_LIMIT).toBool() && (spinCities->value() <= settings->value("Output/ShowMatrixCitiesLimit", DEF_SHOW_MATRIX_CITY_LIMIT).toInt())) {
	424	outputMatrix(*step, output);
	425	}
[74]	426	output.append("<p>" + trUtf8("Selected candidate for branching: %1.").arg(trUtf8("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)) + "</p>");
	427	if (!step->alts.empty()) {
[76]	428	SCandidate cand;
[74]	429	QString alts;
	430	foreach(cand, step->alts) {
	431	if (!alts.isEmpty())
	432	alts += ", ";
	433	alts += trUtf8("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
	434	}
	435	output.append("<p class=\"hasalts\">" + trUtf8("%n alternate candidate(s) for branching: %1.","",step->alts.count()).arg(alts) + "</p>");
	436	}
[42]	437	output.append("<p> </p>");
	438	}
	439	}
	440	if (step->prNode->prNode != NULL)
	441	step = step->prNode;
	442	else if (step->plNode->prNode != NULL)
	443	step = step->plNode;
	444	else
	445	break;
	446	}
[60]	447	if (solver.isOptimal())
	448	output.append("<p>" + trUtf8("Optimal path:") + "</p>");
	449	else
	450	output.append("<p>" + trUtf8("Resulting path:") + "</p>");
	451	output.append("<p>  " + solver.getSortedPath() + "</p>");
[81]	452	if (isInteger(step->price))
	453	output.append("<p>" + trUtf8("The price is <b>%n</b> unit(s).", "", step->price) + "</p>");
	454	else
	455	output.append("<p>" + trUtf8("The price is <b>%1</b> units.").arg(step->price, 0, 'f', 2) + "</p>");
[60]	456	if (!solver.isOptimal()) {
	457	output.append("<p> </p>");
	458	output.append("<p>" + trUtf8("<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>");
	459	}
[65]	460	output.append("<p></p>");
[78]	461
[42]	462	solutionText->setHtml(output.join(""));
	463	solutionText->setDocumentTitle(trUtf8("Solution of Variant #%1 task").arg(spinVariant->value()));
[65]	464
[81]	465	if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
	466	// Scrolling to the end of text.
	467	solutionText->moveCursor(QTextCursor::End);
	468	}
[65]	469
[78]	470	toggleSolutionActions();
[42]	471	tabWidget->setCurrentIndex(1);
	472	QApplication::restoreOverrideCursor();
[6]	473	}
[21]	474
[67]	475	void MainWindow::dataChanged()
[21]	476	{
[67]	477	setWindowModified(true);
[21]	478	}
	479
[67]	480	void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
	481	{
	482	setWindowModified(true);
	483	if (settings->value("Autosize",true).toBool()) {
	484	for (int k = tl.row(); k <= br.row(); k++)
	485	taskView->resizeRowToContents(k);
	486	for (int k = tl.column(); k <= br.column(); k++)
	487	taskView->resizeColumnToContents(k);
	488	}
	489	}
	490
	491	void MainWindow::numCitiesChanged(int nCities)
	492	{
	493	blockSignals(true);
	494	spinCities->setValue(nCities);
	495	blockSignals(false);
	496	}
	497
	498	#ifndef QT_NO_PRINTER
	499	void MainWindow::printPreview(QPrinter *printer)
	500	{
	501	solutionText->print(printer);
	502	}
	503	#endif // QT_NO_PRINTER
	504
	505	void MainWindow::spinCitiesValueChanged(int n)
	506	{
[80]	507	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[67]	508	int count = tspmodel->numCities();
	509	tspmodel->setNumCities(n);
	510	if ((n > count) && settings->value("Autosize",true).toBool())
	511	for (int k = count; k < n; k++) {
	512	taskView->resizeColumnToContents(k);
	513	taskView->resizeRowToContents(k);
	514	}
[80]	515	QApplication::restoreOverrideCursor();
[67]	516	}
	517
[71]	518	void MainWindow::closeEvent(QCloseEvent *ev)
[69]	519	{
	520	if (!maybeSave()) {
[71]	521	ev->ignore();
[69]	522	return;
	523	}
[71]	524	settings->setValue("NumCities", spinCities->value());
	525
	526	// Saving Main Window state
	527	if (settings->value("SavePos", false).toBool()) {
	528	settings->beginGroup("MainWindow");
[69]	529	#ifndef Q_OS_WINCE
[71]	530	settings->setValue("Geometry", saveGeometry());
	531	#endif // Q_OS_WINCE
	532	settings->setValue("State", saveState());
[69]	533	settings->endGroup();
	534	}
[71]	535
	536	QMainWindow::closeEvent(ev);
[69]	537	}
	538
[67]	539	void MainWindow::initDocStyleSheet()
	540	{
	541	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
	542	QColor hilight;
	543	if (color.value() < 192)
	544	hilight.setHsv(color.hue(),color.saturation(),127 + qRound(color.value() / 2));
	545	else
	546	hilight.setHsv(color.hue(),color.saturation(),color.value() / 2);
	547	solutionText->document()->setDefaultStyleSheet("* {color: " + color.name() +";} p {margin: 0px 10px;} table {margin: 5px;} td {padding: 1px 5px;} .hasalts {color: " + hilight.name() + ";} .selected {color: #A00000; font-weight: bold;} .alternate {color: #008000; font-weight: bold;}");
	548	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
	549	}
	550
[29]	551	void MainWindow::loadLangList()
	552	{
[57]	553	QSettings langinfo(PATH_I18N"/languages.ini",QSettings::IniFormat);
[33]	554	#if QT_VERSION >= 0x040500
	555	// In Qt < 4.5 QSettings doesn't have method setIniCodec.
[29]	556	langinfo.setIniCodec("UTF-8");
[33]	557	#endif
[57]	558	QDir dir(PATH_I18N,"*.qm",QDir::Name \| QDir::IgnoreCase,QDir::Files);
[29]	559	if (!dir.exists())
	560	return;
	561	QFileInfoList langs = dir.entryInfoList();
	562	if (langs.size() <= 0)
	563	return;
	564	QAction *a;
	565	for (int k = 0; k < langs.size(); k++) {
	566	QFileInfo lang = langs.at(k);
[30]	567	if (!lang.completeBaseName().startsWith("qt_") && lang.completeBaseName().compare("en")) {
[33]	568	#if QT_VERSION >= 0x040500
[29]	569	a = menuSettingsLanguage->addAction(langinfo.value(lang.completeBaseName() + "/NativeName",lang.completeBaseName()).toString());
[33]	570	#else
	571	// We use Name if Qt < 4.5 because NativeName is in UTF-8, QSettings
	572	// reads .ini file as ASCII and there is no way to set file encoding.
	573	a = menuSettingsLanguage->addAction(langinfo.value(lang.completeBaseName() + "/Name",lang.completeBaseName()).toString());
	574	#endif
[29]	575	a->setData(lang.completeBaseName());
	576	a->setCheckable(true);
	577	a->setActionGroup(groupSettingsLanguageList);
	578	if (settings->value("Language",QLocale::system().name()).toString().startsWith(lang.completeBaseName()))
	579	a->setChecked(true);
	580	}
	581	}
	582	}
	583
[71]	584	bool MainWindow::loadLanguage(const QString &lang)
[29]	585	{
[67]	586	// i18n
	587	bool ad = false;
[71]	588	QString lng = lang;
	589	if (lng.isEmpty()) {
[67]	590	ad = settings->value("Language","").toString().isEmpty();
[71]	591	lng = settings->value("Language",QLocale::system().name()).toString();
[29]	592	}
[67]	593	static QTranslator *qtTranslator; // Qt library translator
	594	if (qtTranslator) {
	595	qApp->removeTranslator(qtTranslator);
	596	delete qtTranslator;
	597	qtTranslator = NULL;
[29]	598	}
[67]	599	static QTranslator *translator; // Application translator
	600	if (translator) {
	601	qApp->removeTranslator(translator);
	602	delete translator;
[80]	603	translator = NULL;
[37]	604	}
[80]	605
	606	if (lng == "en")
	607	return true;
	608
	609	// Trying to load system Qt library translation...
	610	qtTranslator = new QTranslator(this);
	611	if (qtTranslator->load("qt_" + lng,QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
	612	qApp->installTranslator(qtTranslator);
	613	else {
	614	// No luck. Let's try to load a bundled one.
	615	if (qtTranslator->load("qt_" + lng,PATH_I18N))
[67]	616	qApp->installTranslator(qtTranslator);
[74]	617	else {
[80]	618	// Qt library translation unavailable
	619	delete qtTranslator;
	620	qtTranslator = NULL;
[74]	621	}
	622	}
[80]	623
[74]	624	// Now let's load application translation.
[80]	625	translator = new QTranslator(this);
[74]	626	if (translator->load(lng,PATH_I18N))
	627	qApp->installTranslator(translator);
	628	else {
	629	delete translator;
	630	translator = NULL;
[80]	631	if (!ad)
	632	QMessageBox(QMessageBox::Warning,trUtf8("Language Change"),trUtf8("Unable to load translation language."),QMessageBox::Ok,this).exec();
	633	return false;
[21]	634	}
[67]	635	return true;
[21]	636	}
[31]	637
[67]	638	bool MainWindow::maybeSave()
[37]	639	{
[67]	640	if (!isWindowModified())
	641	return true;
	642	int res = QMessageBox(QMessageBox::Warning,trUtf8("Unsaved Changes"),trUtf8("Would you like to save changes in current task?"),QMessageBox::Save \| QMessageBox::Discard \| QMessageBox::Cancel,this).exec();
	643	if (res == QMessageBox::Save)
	644	return saveTask();
	645	else if (res == QMessageBox::Cancel)
	646	return false;
	647	else
	648	return true;
[37]	649	}
	650
[74]	651	void MainWindow::outputMatrix(const TMatrix &matrix, QStringList &output)
[57]	652	{
[67]	653	int n = spinCities->value();
	654	QString line="";
	655	output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
	656	for (int r = 0; r < n; r++) {
	657	line = "<tr>";
	658	for (int c = 0; c < n; c++) {
[71]	659	if (matrix.at(r).at(c) == INFINITY)
[67]	660	line += "<td align=\"center\">"INFSTR"</td>";
	661	else
[81]	662	line += isInteger(matrix.at(r).at(c)) ? QString("<td align=\"center\">%1</td>").arg(matrix.at(r).at(c)) : QString("<td align=\"center\">%1</td>").arg(matrix.at(r).at(c), 0, 'f', 2);
[67]	663	}
	664	line += "</tr>";
	665	output.append(line);
[57]	666	}
[67]	667	output.append("</table>");
[57]	668	}
	669
[74]	670	void MainWindow::outputMatrix(const SStep &step, QStringList &output)
	671	{
	672	int n = spinCities->value();
	673	QString line="";
	674	output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
	675	for (int r = 0; r < n; r++) {
	676	line = "<tr>";
	677	for (int c = 0; c < n; c++) {
	678	if (step.matrix.at(r).at(c) == INFINITY)
	679	line += "<td align=\"center\">"INFSTR"</td>";
	680	else if ((r == step.candidate.nRow) && (c == step.candidate.nCol))
[81]	681	line += isInteger(step.matrix.at(r).at(c)) ? QString("<td align=\"center\" class=\"selected\">%1</td>").arg(step.matrix.at(r).at(c)) : QString("<td align=\"center\" class=\"selected\">%1</td>").arg(step.matrix.at(r).at(c), 0, 'f', 2);
[74]	682	else {
[76]	683	SCandidate cand;
[74]	684	cand.nRow = r;
	685	cand.nCol = c;
	686	if (step.alts.contains(cand))
[81]	687	line += isInteger(step.matrix.at(r).at(c)) ? QString("<td align=\"center\" class=\"alternate\">%1</td>").arg(step.matrix.at(r).at(c)) : QString("<td align=\"center\" class=\"alternate\">%1</td>").arg(step.matrix.at(r).at(c), 0, 'f', 2);
[74]	688	else
[81]	689	line += isInteger(step.matrix.at(r).at(c)) ? QString("<td align=\"center\">%1</td>").arg(step.matrix.at(r).at(c)) : QString("<td align=\"center\">%1</td>").arg(step.matrix.at(r).at(c), 0, 'f', 2);
[74]	690	}
	691	}
	692	line += "</tr>";
	693	output.append(line);
	694	}
	695	output.append("</table>");
	696	}
	697
[80]	698	void MainWindow::retranslateUi(bool all)
	699	{
	700	if (all)
	701	Ui::MainWindow::retranslateUi(this);
	702
	703	#ifndef QT_NO_PRINTER
	704	actionFilePrintPreview->setText(QApplication::translate("MainWindow", "P&rint Preview...", 0, QApplication::UnicodeUTF8));
	705	#ifndef QT_NO_TOOLTIP
	706	actionFilePrintPreview->setToolTip(QApplication::translate("MainWindow", "Preview solution results", 0, QApplication::UnicodeUTF8));
	707	#endif // QT_NO_TOOLTIP
	708	#ifndef QT_NO_STATUSTIP
	709	actionFilePrintPreview->setStatusTip(QApplication::translate("MainWindow", "Preview current solution results before printing", 0, QApplication::UnicodeUTF8));
	710	#endif // QT_NO_STATUSTIP
	711
	712	actionFilePrint->setText(QApplication::translate("MainWindow", "&Print...", 0, QApplication::UnicodeUTF8));
	713	#ifndef QT_NO_TOOLTIP
	714	actionFilePrint->setToolTip(QApplication::translate("MainWindow", "Print solution", 0, QApplication::UnicodeUTF8));
	715	#endif // QT_NO_TOOLTIP
	716	#ifndef QT_NO_STATUSTIP
	717	actionFilePrint->setStatusTip(QApplication::translate("MainWindow", "Print current solution results", 0, QApplication::UnicodeUTF8));
	718	#endif // QT_NO_STATUSTIP
	719	actionFilePrint->setShortcut(QApplication::translate("MainWindow", "Ctrl+P", 0, QApplication::UnicodeUTF8));
	720	#endif // QT_NO_PRINTER
	721	}
	722
[67]	723	bool MainWindow::saveTask() {
	724	QStringList filters(trUtf8("%1 Task File").arg("TSPSG") + " (*.tspt)");
	725	filters.append(trUtf8("All Files") + " (*)");
[78]	726	QString file;
	727	if (fileName.endsWith(".tspt", Qt::CaseInsensitive))
	728	file = fileName;
[67]	729	else
[78]	730	file = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt";
	731
[80]	732	#ifdef Q_OS_WINCE
	733	file = QFileDialog::getSaveFileName(this, trUtf8("Task Save"), file, filters.join(";;"), NULL, QFileDialog::DontUseNativeDialog);
	734	#else
[78]	735	file = QFileDialog::getSaveFileName(this, trUtf8("Task Save"), file, filters.join(";;"));
[80]	736	#endif // Q_OS_WINCE
	737
[78]	738	if (file.isEmpty())
[67]	739	return false;
[78]	740	if (tspmodel->saveTask(file)) {
	741	setFileName(file);
[67]	742	setWindowModified(false);
	743	return true;
	744	}
	745	return false;
	746	}
	747
[71]	748	void MainWindow::setFileName(const QString &fileName)
[31]	749	{
[67]	750	this->fileName = fileName;
	751	setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(trUtf8("Travelling Salesman Problem")));
[31]	752	}
[78]	753
[80]	754	void MainWindow::setupUi()
	755	{
	756	Ui::MainWindow::setupUi(this);
	757
	758	#if QT_VERSION >= 0x040600
	759	setToolButtonStyle(Qt::ToolButtonFollowStyle);
	760	#endif
	761
	762	#ifndef Q_OS_WINCE
	763	QStatusBar *statusbar = new QStatusBar(this);
	764	statusbar->setObjectName("statusbar");
	765	setStatusBar(statusbar);
	766	#endif // Q_OS_WINCE
	767
	768	#ifdef Q_OS_WINCE
	769	//! \hack HACK: A little hack for toolbar icons to have a sane size.
	770	toolBar->setIconSize(QSize(logicalDpiX() / 4, logicalDpiY() / 4));
	771	#endif
	772
	773	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
	774	solutionText->setTextColor(settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>());
	775	solutionText->setWordWrapMode(QTextOption::WordWrap);
	776
	777	#ifndef QT_NO_PRINTER
	778	actionFilePrintPreview = new QAction(this);
	779	actionFilePrintPreview->setObjectName("actionFilePrintPreview");
	780	actionFilePrintPreview->setEnabled(false);
	781	actionFilePrintPreview->setIcon(QIcon(":/images/icons/document_preview.png"));
	782
	783	actionFilePrint = new QAction(this);
	784	actionFilePrint->setObjectName("actionFilePrint");
	785	actionFilePrint->setEnabled(false);
	786	actionFilePrint->setIcon(QIcon(":/images/icons/fileprint.png"));
	787
	788	menuFile->insertAction(actionFileExit,actionFilePrintPreview);
	789	menuFile->insertAction(actionFileExit,actionFilePrint);
	790	menuFile->insertSeparator(actionFileExit);
	791
	792	toolBar->insertAction(actionSettingsPreferences,actionFilePrint);
	793	#endif // QT_NO_PRINTER
	794
	795	groupSettingsLanguageList = new QActionGroup(this);
	796	actionSettingsLanguageEnglish->setData("en");
	797	actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
	798	loadLangList();
	799	actionSettingsLanguageAutodetect->setChecked(settings->value("Language","").toString().isEmpty());
	800
	801	spinCities->setMaximum(MAX_NUM_CITIES);
	802
	803	retranslateUi(false);
	804
	805	setCentralWidget(tabWidget);
	806	}
	807
[78]	808	void MainWindow::toggleSolutionActions(bool enable)
	809	{
	810	buttonSaveSolution->setEnabled(enable);
	811	actionFileSaveAsSolution->setEnabled(enable);
	812	solutionText->setEnabled(enable);
	813	if (!enable)
	814	output.clear();
	815	#ifndef QT_NO_PRINTER
	816	actionFilePrint->setEnabled(enable);
	817	actionFilePrintPreview->setEnabled(enable);
	818	#endif // QT_NO_PRINTER
	819	}

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