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source: tspsg-svn/trunk/src/mainwindow.cpp @ 67

Last change on this file since 67 was 67, checked in by laleppa, 15 years ago
Finished documentation. Sorted all functions in .cpp files according to order of their declaration in .h files.
Property svn:keywords set to `Id URL`
File size: 23.1 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 67 2009-10-24 13:37:48Z 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	{
[29]	36	settings = new QSettings(QSettings::IniFormat,QSettings::UserScope,"TSPSG","tspsg");
	37	loadLanguage();
[1]	38	setupUi(this);
[54]	39	#ifndef Q_OS_WINCE
	40	QStatusBar *statusbar = new QStatusBar(this);
	41	statusbar->setObjectName("statusbar");
	42	setStatusBar(statusbar);
	43	#endif // Q_OS_WINCE
[42]	44	initDocStyleSheet();
	45	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
	46	solutionText->setTextColor(settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>());
	47	solutionText->setWordWrapMode(QTextOption::WordWrap);
[38]	48	#ifdef Q_OS_WINCE
	49	// A little hack for toolbar icons to have sane size.
	50	int s = qMin(QApplication::desktop()->screenGeometry().width(),QApplication::desktop()->screenGeometry().height());
	51	toolBar->setIconSize(QSize(s / 10,s / 10));
	52	#endif
[54]	53	#ifndef QT_NO_PRINTER
[52]	54	printer = new QPrinter(QPrinter::HighResolution);
[54]	55	#endif // QT_NO_PRINTER
[29]	56	groupSettingsLanguageList = new QActionGroup(this);
[30]	57	actionSettingsLanguageEnglish->setData("en");
	58	actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
[29]	59	loadLangList();
[50]	60	spinCities->setMaximum(MAX_NUM_CITIES);
[29]	61	actionSettingsLanguageAutodetect->setChecked(settings->value("Language","").toString().isEmpty());
	62	connect(actionFileNew,SIGNAL(triggered()),this,SLOT(actionFileNewTriggered()));
[31]	63	connect(actionFileOpen,SIGNAL(triggered()),this,SLOT(actionFileOpenTriggered()));
[50]	64	connect(actionFileSave,SIGNAL(triggered()),this,SLOT(actionFileSaveTriggered()));
[42]	65	connect(actionFileSaveAsTask,SIGNAL(triggered()),this,SLOT(actionFileSaveAsTaskTriggered()));
	66	connect(actionFileSaveAsSolution,SIGNAL(triggered()),this,SLOT(actionFileSaveAsSolutionTriggered()));
[29]	67	connect(actionSettingsPreferences,SIGNAL(triggered()),this,SLOT(actionSettingsPreferencesTriggered()));
	68	connect(actionSettingsLanguageAutodetect,SIGNAL(triggered(bool)),this,SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
	69	connect(groupSettingsLanguageList,SIGNAL(triggered(QAction )),this,SLOT(groupSettingsLanguageListTriggered(QAction )));
[37]	70	connect(actionHelpAboutQt,SIGNAL(triggered()),qApp,SLOT(aboutQt()));
[29]	71	connect(actionHelpAbout,SIGNAL(triggered()),this,SLOT(actionHelpAboutTriggered()));
[54]	72	#ifndef QT_NO_PRINTER
	73	menuFile->insertAction(actionFileExit,actionFilePrintPreview);
	74	menuFile->insertAction(actionFileExit,actionFilePrint);
	75	menuFile->insertSeparator(actionFileExit);
	76	toolBar->insertAction(actionSettingsPreferences,actionFilePrint);
[52]	77	connect(actionFilePrintPreview,SIGNAL(triggered()),this,SLOT(actionFilePrintPreviewTriggered()));
	78	connect(actionFilePrint,SIGNAL(triggered()),this,SLOT(actionFilePrintTriggered()));
[54]	79	#endif // QT_NO_PRINTER
[29]	80	connect(buttonSolve,SIGNAL(clicked()),this,SLOT(buttonSolveClicked()));
	81	connect(buttonRandom,SIGNAL(clicked()),this,SLOT(buttonRandomClicked()));
[50]	82	connect(buttonBackToTask,SIGNAL(clicked()),this,SLOT(buttonBackToTaskClicked()));
[29]	83	connect(spinCities,SIGNAL(valueChanged(int)),this,SLOT(spinCitiesValueChanged(int)));
[50]	84	setCentralWidget(tabWidget);
[17]	85	QRect rect = geometry();
[42]	86	#ifndef Q_OS_WINCE
[23]	87	if (settings->value("SavePos",false).toBool()) {
[21]	88	// Loading of saved window state
[23]	89	settings->beginGroup("MainWindow");
	90	resize(settings->value("Size",size()).toSize());
	91	move(settings->value("Position",pos()).toPoint());
	92	if (settings->value("Maximized",false).toBool())
[21]	93	setWindowState(windowState() \| Qt::WindowMaximized);
[23]	94	settings->endGroup();
[21]	95	} else {
	96	// Centering main window
	97	rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
	98	setGeometry(rect);
	99	}
[17]	100	#endif // Q_OS_WINCE
[11]	101	qsrand(QDateTime().currentDateTime().toTime_t());
[15]	102	tspmodel = new CTSPModel();
[52]	103	taskView->setModel(tspmodel);
[31]	104	connect(tspmodel,SIGNAL(numCitiesChanged(int)),this,SLOT(numCitiesChanged(int)));
[57]	105	connect(tspmodel,SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),this,SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
[37]	106	connect(tspmodel,SIGNAL(layoutChanged()),this,SLOT(dataChanged()));
[50]	107	if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
[47]	108	setFileName(QCoreApplication::arguments().at(1));
[50]	109	else {
[47]	110	setFileName();
[50]	111	spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
[52]	112	spinCitiesValueChanged(spinCities->value());
[50]	113	}
	114	setWindowModified(false);
[6]	115	}
	116
[67]	117	/*!
	118	* \brief Handles Main Window close event.
	119	* \param event Close event.
	120	*
	121	* Checks whether or not a current task was saved and asks for saving if not.
	122	* Saves TSPSG settings.
	123	*/
	124	void MainWindow::closeEvent(QCloseEvent *event)
[42]	125	{
[67]	126	if (!maybeSave()) {
	127	event->ignore();
	128	return;
[30]	129	}
[67]	130	settings->setValue("NumCities",spinCities->value());
	131	#ifndef Q_OS_WINCE
	132	// Saving windows state
	133	if (settings->value("SavePos",false).toBool()) {
	134	settings->beginGroup("MainWindow");
	135	settings->setValue("Maximized",isMaximized());
	136	if (!isMaximized()) {
	137	settings->setValue("Size",size());
	138	settings->setValue("Position",pos());
[29]	139	}
[67]	140	settings->endGroup();
[29]	141	}
[67]	142	#endif // Q_OS_WINCE
	143	QMainWindow::closeEvent(event);
[29]	144	}
	145
[67]	146	/* Privates **********************************************************/
[42]	147
[29]	148	void MainWindow::actionFileNewTriggered()
[1]	149	{
[47]	150	if (!maybeSave())
	151	return;
[54]	152	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[29]	153	tspmodel->clear();
[47]	154	setFileName();
[37]	155	setWindowModified(false);
[42]	156	tabWidget->setCurrentIndex(0);
	157	solutionText->clear();
	158	enableSolutionActions(false);
[54]	159	QApplication::restoreOverrideCursor();
[29]	160	}
	161
[31]	162	void MainWindow::actionFileOpenTriggered()
	163	{
[47]	164	if (!maybeSave())
	165	return;
[31]	166	QFileDialog od(this);
	167	od.setAcceptMode(QFileDialog::AcceptOpen);
	168	od.setFileMode(QFileDialog::ExistingFile);
	169	QStringList filters(trUtf8("All Supported Formats") + " (.tspt .zkt)");
[47]	170	filters.append(trUtf8("%1 Task Files").arg("TSPSG") + " (*.tspt)");
	171	filters.append(trUtf8("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
[31]	172	filters.append(trUtf8("All Files") + " (*)");
	173	od.setNameFilters(filters);
	174	if (od.exec() != QDialog::Accepted)
	175	return;
	176	QStringList files = od.selectedFiles();
[47]	177	if (files.empty())
[31]	178	return;
[59]	179	if (!tspmodel->loadTask(files.first()))
[47]	180	return;
	181	setFileName(files.first());
	182	tabWidget->setCurrentIndex(0);
[37]	183	setWindowModified(false);
[42]	184	solutionText->clear();
	185	enableSolutionActions(false);
[31]	186	}
	187
[50]	188	void MainWindow::actionFileSaveTriggered()
	189	{
	190	if ((fileName == trUtf8("Untitled") + ".tspt") \|\| (!fileName.endsWith(".tspt",Qt::CaseInsensitive)))
	191	saveTask();
[59]	192	else
[50]	193	if (tspmodel->saveTask(fileName))
	194	setWindowModified(false);
	195	}
	196
[42]	197	void MainWindow::actionFileSaveAsTaskTriggered()
[31]	198	{
[37]	199	saveTask();
	200	}
	201
[42]	202	void MainWindow::actionFileSaveAsSolutionTriggered()
	203	{
	204	static QString selectedFile;
	205	if (selectedFile.isEmpty())
[55]	206	#ifndef QT_NO_PRINTER
	207	selectedFile = "solution.pdf";
	208	#else
[42]	209	selectedFile = "solution.html";
[55]	210	#endif // QT_NO_PRINTER
[42]	211	QFileDialog sd(this);
	212	sd.setAcceptMode(QFileDialog::AcceptSave);
[55]	213	QStringList filters;
	214	#ifndef QT_NO_PRINTER
	215	filters.append(trUtf8("PDF Files") + "(*.pdf)");
	216	#endif
	217	filters.append(trUtf8("HTML Files") + " (.html .htm)");
[45]	218	#if QT_VERSION >= 0x040500
[42]	219	filters.append(trUtf8("OpenDocument Files") + " (*.odt)");
[45]	220	#endif // QT_VERSION >= 0x040500
[42]	221	filters.append(trUtf8("All Files") + " (*)");
	222	sd.setNameFilters(filters);
	223	sd.selectFile(selectedFile);
	224	if (sd.exec() != QDialog::Accepted)
	225	return;
	226	QStringList files = sd.selectedFiles();
	227	if (files.empty())
	228	return;
	229	selectedFile = files.first();
[51]	230	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[55]	231	#ifndef QT_NO_PRINTER
	232	if (selectedFile.endsWith(".pdf",Qt::CaseInsensitive)) {
	233	QPrinter printer(QPrinter::HighResolution);
	234	printer.setOutputFormat(QPrinter::PdfFormat);
	235	printer.setOutputFileName(selectedFile);
	236	solutionText->document()->print(&printer);
	237	QApplication::restoreOverrideCursor();
	238	return;
	239	}
	240	#endif
[45]	241	#if QT_VERSION >= 0x040500
[42]	242	QTextDocumentWriter dw(selectedFile);
	243	if (!(selectedFile.endsWith(".htm",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".html",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".odt",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".txt",Qt::CaseInsensitive)))
	244	dw.setFormat("plaintext");
	245	dw.write(solutionText->document());
[45]	246	#else
	247	// Qt < 4.5 has no QTextDocumentWriter class
	248	QFile file(selectedFile);
[51]	249	if (!file.open(QFile::WriteOnly)) {
	250	QApplication::restoreOverrideCursor();
[45]	251	return;
[51]	252	}
[45]	253	QTextStream ts(&file);
	254	ts.setCodec(QTextCodec::codecForName("UTF-8"));
	255	ts << solutionText->document()->toHtml("UTF-8");
[51]	256	file.close();
[45]	257	#endif // QT_VERSION >= 0x040500
[51]	258	QApplication::restoreOverrideCursor();
[42]	259	}
	260
[67]	261	#ifndef QT_NO_PRINTER
	262	void MainWindow::actionFilePrintPreviewTriggered()
	263	{
	264	QPrintPreviewDialog ppd(printer, this);
	265	connect(&ppd,SIGNAL(paintRequested(QPrinter )),SLOT(printPreview(QPrinter )));
	266	ppd.exec();
[31]	267	}
	268
[67]	269	void MainWindow::actionFilePrintTriggered()
	270	{
	271	QPrintDialog pd(printer,this);
	272	#if QT_VERSION >= 0x040500
	273	// No such methods in Qt < 4.5
	274	pd.setOption(QAbstractPrintDialog::PrintSelection,false);
	275	pd.setOption(QAbstractPrintDialog::PrintPageRange,false);
	276	#endif
	277	if (pd.exec() != QDialog::Accepted)
	278	return;
	279	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	280	solutionText->document()->print(printer);
	281	QApplication::restoreOverrideCursor();
	282	}
	283	#endif // QT_NO_PRINTER
	284
[29]	285	void MainWindow::actionSettingsPreferencesTriggered()
	286	{
[1]	287	SettingsDialog sd(this);
[42]	288	if (sd.exec() != QDialog::Accepted)
	289	return;
	290	if (sd.colorChanged() \|\| sd.fontChanged()) {
	291	initDocStyleSheet();
	292	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)) {
	293	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	294	solutionText->clear();
	295	solutionText->setHtml(output.join(""));
	296	QApplication::restoreOverrideCursor();
	297	}
	298	}
[1]	299	}
[6]	300
[67]	301	void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
[17]	302	{
[67]	303	if (checked) {
	304	settings->remove("Language");
	305	QMessageBox(QMessageBox::Information,trUtf8("Language change"),trUtf8("Language will be autodetected on next application start."),QMessageBox::Ok,this).exec();
	306	} else
	307	settings->setValue("Language",groupSettingsLanguageList->checkedAction()->data().toString());
[52]	308	}
	309
[67]	310	void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
[52]	311	{
[67]	312	if (actionSettingsLanguageAutodetect->isChecked()) {
	313	// We have language autodetection. It needs to be disabled to change language.
	314	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) {
	315	actionSettingsLanguageAutodetect->trigger();
	316	} else
	317	return;
	318	}
	319	bool untitled = (fileName == trUtf8("Untitled") + ".tspt");
	320	if (loadLanguage(action->data().toString())) {
	321	settings->setValue("Language",action->data().toString());
	322	retranslateUi(this);
	323	if (untitled)
	324	setFileName();
	325	}
[52]	326	}
	327
[67]	328	void MainWindow::actionHelpAboutTriggered()
[52]	329	{
[67]	330	//! \todo TODO: Normal about window :-)
	331	QString about = QString::fromUtf8("TSPSG: TSP Solver and Generator\n");
	332	about += QString::fromUtf8(" Version: "BUILD_VERSION"\n");
	333	about += QString::fromUtf8(" Copyright (C) 2007-%1 Lёppa <contacts[at]oleksii[dot]name>\n").arg(QDate::currentDate().toString("yyyy"));
	334	about += QString::fromUtf8("Target OS: %1\n").arg(OS);
	335	about += "Qt library:\n";
	336	about += QString::fromUtf8(" Compile time: %1\n").arg(QT_VERSION_STR);
	337	about += QString::fromUtf8(" Runtime: %1\n").arg(qVersion());
	338	about += QString::fromUtf8("Built on %1 at %2\n").arg(__DATE__).arg(__TIME__);
	339	about += QString::fromUtf8(VERSIONID"\n\n");
	340	about += QString::fromUtf8("Algorithm: %1\n").arg(CTSPSolver::getVersionId());
	341	about += "\n";
	342	about += "TSPSG is licensed under the terms of the GNU General Public License. You should have received a copy of the GNU General Public License along with TSPSG.";
	343	QMessageBox(QMessageBox::Information,"About",about,QMessageBox::Ok,this).exec();
[17]	344	}
	345
[50]	346	void MainWindow::buttonBackToTaskClicked()
	347	{
	348	tabWidget->setCurrentIndex(0);
	349	}
	350
[67]	351	void MainWindow::buttonRandomClicked()
[42]	352	{
[67]	353	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	354	tspmodel->randomize();
	355	QApplication::restoreOverrideCursor();
[42]	356	}
	357
[29]	358	void MainWindow::buttonSolveClicked()
[6]	359	{
[13]	360	tMatrix matrix;
[42]	361	QList<double> row;
[15]	362	int n = spinCities->value();
[13]	363	bool ok;
[15]	364	for (int r = 0; r < n; r++) {
[42]	365	row.clear();
[15]	366	for (int c = 0; c < n; c++) {
[42]	367	row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
[15]	368	if (!ok) {
[47]	369	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]	370	return;
[13]	371	}
	372	}
	373	matrix.append(row);
	374	}
	375	CTSPSolver solver;
[50]	376	sStep *root = solver.solve(n,matrix,this);
[13]	377	if (!root)
[42]	378	return;
	379	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	380	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
	381	output.clear();
	382	output.append("<p>" + trUtf8("Variant #%1").arg(spinVariant->value()) + "</p>");
	383	output.append("<p>" + trUtf8("Task:") + "</p>");
	384	outputMatrix(matrix,output);
	385	output.append("<hr>");
	386	output.append("<p>" + trUtf8("Solution of Variant #%1 task").arg(spinVariant->value()) + "</p>");
	387	sStep *step = root;
	388	n = 1;
	389	while (n <= spinCities->value()) {
	390	if (step->prNode->prNode != NULL \|\| (step->prNode->prNode == NULL && step->plNode->prNode == NULL)) {
	391	if (n != spinCities->value()) {
	392	output.append("<p>" + trUtf8("Step #%1").arg(n++) + "</p>");
	393	outputMatrix(step->matrix,output,step->candidate.nRow,step->candidate.nCol);
	394	if (step->alts)
	395	output.append("<p class=\"hasalts\">" + trUtf8("This step has alternate candidates for branching.") + "</p>");
	396	output.append("<p> </p>");
	397	}
	398	}
	399	if (step->prNode->prNode != NULL)
	400	step = step->prNode;
	401	else if (step->plNode->prNode != NULL)
	402	step = step->plNode;
	403	else
	404	break;
	405	}
[60]	406	if (solver.isOptimal())
	407	output.append("<p>" + trUtf8("Optimal path:") + "</p>");
	408	else
	409	output.append("<p>" + trUtf8("Resulting path:") + "</p>");
	410	output.append("<p>  " + solver.getSortedPath() + "</p>");
[42]	411	output.append("<p>" + trUtf8("The price is <b>%1</b> units.").arg(step->price) + "</p>");
[60]	412	if (!solver.isOptimal()) {
	413	output.append("<p> </p>");
	414	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>");
	415	}
[65]	416	output.append("<p></p>");
[42]	417	solutionText->setHtml(output.join(""));
	418	solutionText->setDocumentTitle(trUtf8("Solution of Variant #%1 task").arg(spinVariant->value()));
[65]	419
	420	// Scrolling to the end of text.
	421	QTextCursor cursor(solutionText->textCursor());
	422	cursor.movePosition(QTextCursor::End, QTextCursor::MoveAnchor);
	423	solutionText->setTextCursor(cursor);
	424
[42]	425	enableSolutionActions();
	426	tabWidget->setCurrentIndex(1);
	427	QApplication::restoreOverrideCursor();
[6]	428	}
[21]	429
[67]	430	void MainWindow::dataChanged()
[21]	431	{
[67]	432	setWindowModified(true);
[21]	433	}
	434
[67]	435	void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
	436	{
	437	setWindowModified(true);
	438	if (settings->value("Autosize",true).toBool()) {
	439	for (int k = tl.row(); k <= br.row(); k++)
	440	taskView->resizeRowToContents(k);
	441	for (int k = tl.column(); k <= br.column(); k++)
	442	taskView->resizeColumnToContents(k);
	443	}
	444	}
	445
	446	void MainWindow::numCitiesChanged(int nCities)
	447	{
	448	blockSignals(true);
	449	spinCities->setValue(nCities);
	450	blockSignals(false);
	451	}
	452
	453	#ifndef QT_NO_PRINTER
	454	void MainWindow::printPreview(QPrinter *printer)
	455	{
	456	solutionText->print(printer);
	457	}
	458	#endif // QT_NO_PRINTER
	459
	460	void MainWindow::spinCitiesValueChanged(int n)
	461	{
	462	int count = tspmodel->numCities();
	463	tspmodel->setNumCities(n);
	464	if ((n > count) && settings->value("Autosize",true).toBool())
	465	for (int k = count; k < n; k++) {
	466	taskView->resizeColumnToContents(k);
	467	taskView->resizeRowToContents(k);
	468	}
	469	}
	470
	471	void MainWindow::enableSolutionActions(bool enable)
	472	{
	473	buttonSaveSolution->setEnabled(enable);
	474	actionFileSaveAsSolution->setEnabled(enable);
	475	solutionText->setEnabled(enable);
	476	if (!enable)
	477	output.clear();
	478	#ifndef QT_NO_PRINTER
	479	actionFilePrint->setEnabled(enable);
	480	actionFilePrintPreview->setEnabled(enable);
	481	#endif // QT_NO_PRINTER
	482	}
	483
	484	void MainWindow::initDocStyleSheet()
	485	{
	486	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
	487	QColor hilight;
	488	if (color.value() < 192)
	489	hilight.setHsv(color.hue(),color.saturation(),127 + qRound(color.value() / 2));
	490	else
	491	hilight.setHsv(color.hue(),color.saturation(),color.value() / 2);
	492	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;}");
	493	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
	494	}
	495
[29]	496	void MainWindow::loadLangList()
	497	{
[57]	498	QSettings langinfo(PATH_I18N"/languages.ini",QSettings::IniFormat);
[33]	499	#if QT_VERSION >= 0x040500
	500	// In Qt < 4.5 QSettings doesn't have method setIniCodec.
[29]	501	langinfo.setIniCodec("UTF-8");
[33]	502	#endif
[57]	503	QDir dir(PATH_I18N,"*.qm",QDir::Name \| QDir::IgnoreCase,QDir::Files);
[29]	504	if (!dir.exists())
	505	return;
	506	QFileInfoList langs = dir.entryInfoList();
	507	if (langs.size() <= 0)
	508	return;
	509	QAction *a;
	510	for (int k = 0; k < langs.size(); k++) {
	511	QFileInfo lang = langs.at(k);
[30]	512	if (!lang.completeBaseName().startsWith("qt_") && lang.completeBaseName().compare("en")) {
[33]	513	#if QT_VERSION >= 0x040500
[29]	514	a = menuSettingsLanguage->addAction(langinfo.value(lang.completeBaseName() + "/NativeName",lang.completeBaseName()).toString());
[33]	515	#else
	516	// We use Name if Qt < 4.5 because NativeName is in UTF-8, QSettings
	517	// reads .ini file as ASCII and there is no way to set file encoding.
	518	a = menuSettingsLanguage->addAction(langinfo.value(lang.completeBaseName() + "/Name",lang.completeBaseName()).toString());
	519	#endif
[29]	520	a->setData(lang.completeBaseName());
	521	a->setCheckable(true);
	522	a->setActionGroup(groupSettingsLanguageList);
	523	if (settings->value("Language",QLocale::system().name()).toString().startsWith(lang.completeBaseName()))
	524	a->setChecked(true);
	525	}
	526	}
	527	}
	528
[67]	529	bool MainWindow::loadLanguage(QString lang)
[29]	530	{
[67]	531	// i18n
	532	bool ad = false;
	533	if (lang.isEmpty()) {
	534	ad = settings->value("Language","").toString().isEmpty();
	535	lang = settings->value("Language",QLocale::system().name()).toString();
[29]	536	}
[67]	537	static QTranslator *qtTranslator; // Qt library translator
	538	if (qtTranslator) {
	539	qApp->removeTranslator(qtTranslator);
	540	delete qtTranslator;
	541	qtTranslator = NULL;
[29]	542	}
[67]	543	qtTranslator = new QTranslator();
	544	static QTranslator *translator; // Application translator
	545	if (translator) {
	546	qApp->removeTranslator(translator);
	547	delete translator;
[37]	548	}
[67]	549	translator = new QTranslator();
	550	if (lang.compare("en") && !lang.startsWith("en_")) {
	551	// Trying to load system Qt library translation...
	552	if (qtTranslator->load("qt_" + lang,QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
	553	qApp->installTranslator(qtTranslator);
	554	else
	555	// No luck. Let's try to load bundled one.
	556	if (qtTranslator->load("qt_" + lang,PATH_I18N))
	557	qApp->installTranslator(qtTranslator);
	558	else {
	559	// Qt library translation unavailable
	560	delete qtTranslator;
	561	qtTranslator = NULL;
	562	}
	563	// Now let's load application translation.
	564	if (translator->load(lang,PATH_I18N))
	565	qApp->installTranslator(translator);
	566	else {
	567	if (!ad)
	568	QMessageBox(QMessageBox::Warning,trUtf8("Language Change"),trUtf8("Unable to load translation language."),QMessageBox::Ok,this).exec();
	569	delete translator;
	570	translator = NULL;
	571	return false;
[21]	572	}
	573	}
[67]	574	return true;
[21]	575	}
[31]	576
[67]	577	bool MainWindow::maybeSave()
[37]	578	{
[67]	579	if (!isWindowModified())
	580	return true;
	581	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();
	582	if (res == QMessageBox::Save)
	583	return saveTask();
	584	else if (res == QMessageBox::Cancel)
	585	return false;
	586	else
	587	return true;
[37]	588	}
	589
[67]	590	void MainWindow::outputMatrix(tMatrix matrix, QStringList &output, int nRow, int nCol)
[57]	591	{
[67]	592	int n = spinCities->value();
	593	QString line="";
	594	output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
	595	for (int r = 0; r < n; r++) {
	596	line = "<tr>";
	597	for (int c = 0; c < n; c++) {
	598	if (matrix[r][c] == INFINITY)
	599	line += "<td align=\"center\">"INFSTR"</td>";
	600	else if ((r == nRow) && (c == nCol))
	601	line += "<td align=\"center\" class=\"selected\">" + QVariant(matrix[r][c]).toString() + "</td>";
	602	else
	603	line += "<td align=\"center\">" + QVariant(matrix[r][c]).toString() + "</td>";
	604	}
	605	line += "</tr>";
	606	output.append(line);
[57]	607	}
[67]	608	output.append("</table>");
[57]	609	}
	610
[67]	611	bool MainWindow::saveTask() {
	612	QFileDialog sd(this);
	613	sd.setAcceptMode(QFileDialog::AcceptSave);
	614	QStringList filters(trUtf8("%1 Task File").arg("TSPSG") + " (*.tspt)");
	615	filters.append(trUtf8("All Files") + " (*)");
	616	sd.setNameFilters(filters);
	617	sd.setDefaultSuffix("tspt");
	618	if (fileName.endsWith(".tspt",Qt::CaseInsensitive))
	619	sd.selectFile(fileName);
	620	else
	621	sd.selectFile(QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt");
	622	if (sd.exec() != QDialog::Accepted)
	623	return false;
	624	QStringList files = sd.selectedFiles();
	625	if (files.empty())
	626	return false;
	627	if (tspmodel->saveTask(files.first())) {
	628	setFileName(files.first());
	629	setWindowModified(false);
	630	return true;
	631	}
	632	return false;
	633	}
	634
	635	void MainWindow::setFileName(QString fileName)
[31]	636	{
[67]	637	this->fileName = fileName;
	638	setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(trUtf8("Travelling Salesman Problem")));
[31]	639	}

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