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source: tspsg-svn/trunk/src/mainwindow.cpp @ 52

Last change on this file since 52 was 52, checked in by laleppa, 15 years ago
Implemented printing of solution results (not supported under wince).
Property svn:keywords set to `Id URL`
File size: 20.9 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 52 2009-08-04 16:18:14Z 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
	26	MainWindow::MainWindow(QWidget *parent)
[21]	27	: QMainWindow(parent)
[1]	28	{
[29]	29	settings = new QSettings(QSettings::IniFormat,QSettings::UserScope,"TSPSG","tspsg");
	30	loadLanguage();
[1]	31	setupUi(this);
[42]	32	initDocStyleSheet();
	33	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
	34	solutionText->setTextColor(settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>());
	35	solutionText->setWordWrapMode(QTextOption::WordWrap);
[38]	36	#ifdef Q_OS_WINCE
	37	// A little hack for toolbar icons to have sane size.
	38	int s = qMin(QApplication::desktop()->screenGeometry().width(),QApplication::desktop()->screenGeometry().height());
	39	toolBar->setIconSize(QSize(s / 10,s / 10));
	40	#endif
[29]	41	#ifndef Q_OS_WINCE
[52]	42	printer = new QPrinter(QPrinter::HighResolution);
[29]	43	#endif // Q_OS_WINCE
	44	groupSettingsLanguageList = new QActionGroup(this);
[30]	45	actionSettingsLanguageEnglish->setData("en");
	46	actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
[29]	47	loadLangList();
[50]	48	spinCities->setMaximum(MAX_NUM_CITIES);
[29]	49	actionSettingsLanguageAutodetect->setChecked(settings->value("Language","").toString().isEmpty());
	50	connect(actionFileNew,SIGNAL(triggered()),this,SLOT(actionFileNewTriggered()));
[31]	51	connect(actionFileOpen,SIGNAL(triggered()),this,SLOT(actionFileOpenTriggered()));
[50]	52	connect(actionFileSave,SIGNAL(triggered()),this,SLOT(actionFileSaveTriggered()));
[42]	53	connect(actionFileSaveAsTask,SIGNAL(triggered()),this,SLOT(actionFileSaveAsTaskTriggered()));
	54	connect(actionFileSaveAsSolution,SIGNAL(triggered()),this,SLOT(actionFileSaveAsSolutionTriggered()));
[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()));
[17]	60	#ifndef Q_OS_WINCE
[52]	61	connect(actionFilePrintPreview,SIGNAL(triggered()),this,SLOT(actionFilePrintPreviewTriggered()));
	62	connect(actionFilePrint,SIGNAL(triggered()),this,SLOT(actionFilePrintTriggered()));
[17]	63	#endif // Q_OS_WINCE
[29]	64	connect(buttonSolve,SIGNAL(clicked()),this,SLOT(buttonSolveClicked()));
	65	connect(buttonRandom,SIGNAL(clicked()),this,SLOT(buttonRandomClicked()));
[50]	66	connect(buttonBackToTask,SIGNAL(clicked()),this,SLOT(buttonBackToTaskClicked()));
[29]	67	connect(spinCities,SIGNAL(valueChanged(int)),this,SLOT(spinCitiesValueChanged(int)));
[50]	68	setCentralWidget(tabWidget);
[17]	69	QRect rect = geometry();
[42]	70	#ifndef Q_OS_WINCE
[23]	71	if (settings->value("SavePos",false).toBool()) {
[21]	72	// Loading of saved window state
[23]	73	settings->beginGroup("MainWindow");
	74	resize(settings->value("Size",size()).toSize());
	75	move(settings->value("Position",pos()).toPoint());
	76	if (settings->value("Maximized",false).toBool())
[21]	77	setWindowState(windowState() \| Qt::WindowMaximized);
[23]	78	settings->endGroup();
[21]	79	} else {
	80	// Centering main window
	81	rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
	82	setGeometry(rect);
	83	}
[17]	84	#endif // Q_OS_WINCE
[11]	85	qsrand(QDateTime().currentDateTime().toTime_t());
[15]	86	tspmodel = new CTSPModel();
[52]	87	taskView->setModel(tspmodel);
[31]	88	connect(tspmodel,SIGNAL(numCitiesChanged(int)),this,SLOT(numCitiesChanged(int)));
[37]	89	connect(tspmodel,SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),this,SLOT(dataChanged()));
	90	connect(tspmodel,SIGNAL(layoutChanged()),this,SLOT(dataChanged()));
[50]	91	if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
[47]	92	setFileName(QCoreApplication::arguments().at(1));
[50]	93	else {
[47]	94	setFileName();
[50]	95	spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
[52]	96	spinCitiesValueChanged(spinCities->value());
[50]	97	}
	98	setWindowModified(false);
[6]	99	}
	100
[42]	101	void MainWindow::enableSolutionActions(bool enable)
	102	{
[50]	103	buttonSaveSolution->setEnabled(enable);
[42]	104	actionFileSaveAsSolution->setEnabled(enable);
	105	solutionText->setEnabled(enable);
	106	if (!enable)
	107	output.clear();
[52]	108	#ifndef Q_OS_WINCE
	109	actionFilePrint->setEnabled(enable);
	110	actionFilePrintPreview->setEnabled(enable);
	111	#endif // Q_OS_WINCE
[42]	112	}
	113
[30]	114	bool MainWindow::loadLanguage(QString lang)
[4]	115	{
[29]	116	// i18n
[30]	117	bool ad = false;
	118	if (lang.isEmpty()) {
	119	ad = settings->value("Language","").toString().isEmpty();
	120	lang = settings->value("Language",QLocale::system().name()).toString();
	121	}
[52]	122	static QTranslator *qtTranslator; // Qt library translator
[29]	123	if (qtTranslator) {
	124	qApp->removeTranslator(qtTranslator);
	125	delete qtTranslator;
	126	qtTranslator = NULL;
	127	}
	128	qtTranslator = new QTranslator();
[52]	129	static QTranslator *translator; // Application translator
[30]	130	if (translator) {
	131	qApp->removeTranslator(translator);
	132	delete translator;
	133	}
	134	translator = new QTranslator();
[29]	135	if (lang.compare("en") && !lang.startsWith("en_")) {
	136	// Trying to load system Qt library translation...
	137	if (qtTranslator->load("qt_" + lang,QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
	138	qApp->installTranslator(qtTranslator);
	139	else
	140	// No luck. Let's try to load bundled one.
	141	if (qtTranslator->load("qt_" + lang,"i18n"))
	142	qApp->installTranslator(qtTranslator);
	143	else {
[52]	144	// Qt library translation unavailable
[29]	145	delete qtTranslator;
	146	qtTranslator = NULL;
	147	}
[30]	148	// Now let's load application translation.
[29]	149	if (translator->load(lang,"i18n"))
	150	qApp->installTranslator(translator);
	151	else {
	152	if (!ad)
[52]	153	QMessageBox(QMessageBox::Warning,trUtf8("Language Change"),trUtf8("Unable to load translation language."),QMessageBox::Ok,this).exec();
[29]	154	delete translator;
	155	translator = NULL;
	156	return false;
	157	}
	158	}
	159	return true;
	160	}
	161
[42]	162	void MainWindow::initDocStyleSheet()
	163	{
	164	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
	165	QColor hilight;
	166	if (color.value() < 192)
	167	hilight.setHsv(color.hue(),color.saturation(),127 + qRound(color.value() / 2));
	168	else
	169	hilight.setHsv(color.hue(),color.saturation(),color.value() / 2);
	170	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;}");
	171	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
	172	}
	173
[47]	174	void MainWindow::setFileName(QString fileName)
	175	{
	176	this->fileName = fileName;
	177	setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(trUtf8("Travelling Salesman Problem")));
	178	}
	179
[29]	180	void MainWindow::spinCitiesValueChanged(int n)
	181	{
[21]	182	int count = tspmodel->numCities();
[15]	183	tspmodel->setNumCities(n);
[21]	184	if (n > count)
	185	for (int k = count; k < n; k++) {
	186	taskView->resizeColumnToContents(k);
	187	taskView->resizeRowToContents(k);
	188	}
[1]	189	}
	190
[47]	191	bool MainWindow::maybeSave()
	192	{
	193	if (!isWindowModified())
	194	return true;
	195	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();
	196	if (res == QMessageBox::Save)
	197	return saveTask();
	198	else if (res == QMessageBox::Cancel)
	199	return false;
	200	else
	201	return true;
	202	}
[29]	203
	204	void MainWindow::actionFileNewTriggered()
[1]	205	{
[47]	206	if (!maybeSave())
	207	return;
[29]	208	tspmodel->clear();
[47]	209	taskView->resizeColumnsToContents();
	210	taskView->resizeRowsToContents();
	211	setFileName();
[37]	212	setWindowModified(false);
[42]	213	tabWidget->setCurrentIndex(0);
	214	solutionText->clear();
	215	enableSolutionActions(false);
[29]	216	}
	217
[31]	218	void MainWindow::actionFileOpenTriggered()
	219	{
[47]	220	if (!maybeSave())
	221	return;
[31]	222	QFileDialog od(this);
	223	od.setAcceptMode(QFileDialog::AcceptOpen);
	224	od.setFileMode(QFileDialog::ExistingFile);
	225	QStringList filters(trUtf8("All Supported Formats") + " (.tspt .zkt)");
[47]	226	filters.append(trUtf8("%1 Task Files").arg("TSPSG") + " (*.tspt)");
	227	filters.append(trUtf8("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
[31]	228	filters.append(trUtf8("All Files") + " (*)");
	229	od.setNameFilters(filters);
	230	if (od.exec() != QDialog::Accepted)
	231	return;
	232	QStringList files = od.selectedFiles();
[47]	233	if (files.empty())
[31]	234	return;
[47]	235	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	236	if (!tspmodel->loadTask(files.first())) {
	237	QApplication::restoreOverrideCursor();
	238	return;
	239	}
	240	setFileName(files.first());
	241	taskView->resizeColumnsToContents();
	242	taskView->resizeRowsToContents();
	243	tabWidget->setCurrentIndex(0);
[37]	244	setWindowModified(false);
[42]	245	solutionText->clear();
	246	enableSolutionActions(false);
[47]	247	QApplication::restoreOverrideCursor();
[31]	248	}
	249
[50]	250	void MainWindow::actionFileSaveTriggered()
	251	{
	252	if ((fileName == trUtf8("Untitled") + ".tspt") \|\| (!fileName.endsWith(".tspt",Qt::CaseInsensitive)))
	253	saveTask();
	254	else {
	255	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	256	if (tspmodel->saveTask(fileName))
	257	setWindowModified(false);
	258	QApplication::restoreOverrideCursor();
	259	}
	260	}
	261
[42]	262	void MainWindow::actionFileSaveAsTaskTriggered()
[31]	263	{
[37]	264	saveTask();
	265	}
	266
[42]	267	void MainWindow::actionFileSaveAsSolutionTriggered()
	268	{
	269	static QString selectedFile;
	270	if (selectedFile.isEmpty())
	271	selectedFile = "solution.html";
	272	QFileDialog sd(this);
	273	sd.setAcceptMode(QFileDialog::AcceptSave);
	274	QStringList filters(trUtf8("HTML Files") + " (.html .htm)");
[45]	275	#if QT_VERSION >= 0x040500
[42]	276	filters.append(trUtf8("OpenDocument Files") + " (*.odt)");
[45]	277	#endif // QT_VERSION >= 0x040500
[42]	278	filters.append(trUtf8("All Files") + " (*)");
	279	sd.setNameFilters(filters);
	280	sd.selectFile(selectedFile);
	281	if (sd.exec() != QDialog::Accepted)
	282	return;
	283	QStringList files = sd.selectedFiles();
	284	if (files.empty())
	285	return;
	286	selectedFile = files.first();
[51]	287	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[45]	288	#if QT_VERSION >= 0x040500
[42]	289	QTextDocumentWriter dw(selectedFile);
	290	if (!(selectedFile.endsWith(".htm",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".html",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".odt",Qt::CaseInsensitive) \|\| selectedFile.endsWith(".txt",Qt::CaseInsensitive)))
	291	dw.setFormat("plaintext");
	292	dw.write(solutionText->document());
[45]	293	#else
	294	// Qt < 4.5 has no QTextDocumentWriter class
	295	QFile file(selectedFile);
[51]	296	if (!file.open(QFile::WriteOnly)) {
	297	QApplication::restoreOverrideCursor();
[45]	298	return;
[51]	299	}
[45]	300	QTextStream ts(&file);
	301	ts.setCodec(QTextCodec::codecForName("UTF-8"));
	302	ts << solutionText->document()->toHtml("UTF-8");
[51]	303	file.close();
[45]	304	#endif // QT_VERSION >= 0x040500
[51]	305	QApplication::restoreOverrideCursor();
[42]	306	}
	307
[37]	308	bool MainWindow::saveTask() {
[31]	309	QFileDialog sd(this);
	310	sd.setAcceptMode(QFileDialog::AcceptSave);
[47]	311	QStringList filters(trUtf8("%1 Task File").arg("TSPSG") + " (*.tspt)");
[31]	312	filters.append(trUtf8("All Files") + " (*)");
	313	sd.setNameFilters(filters);
	314	sd.setDefaultSuffix("tspt");
[47]	315	if (fileName.endsWith(".tspt",Qt::CaseInsensitive))
	316	sd.selectFile(fileName);
	317	else
	318	sd.selectFile(QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt");
[31]	319	if (sd.exec() != QDialog::Accepted)
[37]	320	return false;
[31]	321	QStringList files = sd.selectedFiles();
[47]	322	if (files.empty())
[37]	323	return false;
[47]	324	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
[37]	325	if (tspmodel->saveTask(files.first())) {
[47]	326	setFileName(files.first());
[37]	327	setWindowModified(false);
[47]	328	QApplication::restoreOverrideCursor();
[37]	329	return true;
[47]	330	}
	331	QApplication::restoreOverrideCursor();
	332	return false;
[31]	333	}
	334
[29]	335	void MainWindow::actionSettingsPreferencesTriggered()
	336	{
[1]	337	SettingsDialog sd(this);
[42]	338	if (sd.exec() != QDialog::Accepted)
	339	return;
	340	if (sd.colorChanged() \|\| sd.fontChanged()) {
	341	initDocStyleSheet();
	342	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)) {
	343	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	344	solutionText->clear();
	345	solutionText->setHtml(output.join(""));
	346	QApplication::restoreOverrideCursor();
	347	}
	348	}
[1]	349	}
[6]	350
[17]	351	#ifndef Q_OS_WINCE
[52]	352	void MainWindow::printPreview(QPrinter *printer)
[17]	353	{
[52]	354	solutionText->print(printer);
	355	}
	356
	357	void MainWindow::actionFilePrintPreviewTriggered()
	358	{
	359	QPrintPreviewDialog ppd(printer, this);
	360	connect(&ppd,SIGNAL(paintRequested(QPrinter )),SLOT(printPreview(QPrinter )));
	361	ppd.exec();
	362	}
	363
	364	void MainWindow::actionFilePrintTriggered()
	365	{
[29]	366	QPrintDialog pd(printer,this);
[33]	367	#if QT_VERSION >= 0x040500
	368	// No such methods in Qt < 4.5
[29]	369	pd.setOption(QAbstractPrintDialog::PrintSelection,false);
	370	pd.setOption(QAbstractPrintDialog::PrintPageRange,false);
[33]	371	#endif
[52]	372	if (pd.exec() != QDialog::Accepted)
	373	return;
	374	solutionText->document()->print(printer);
[17]	375	}
	376	#endif // Q_OS_WINCE
	377
[29]	378	void MainWindow::buttonRandomClicked()
[6]	379	{
[15]	380	tspmodel->randomize();
[37]	381	setWindowModified(true);
[21]	382	taskView->resizeColumnsToContents();
	383	taskView->resizeRowsToContents();
[6]	384	}
	385
[50]	386	void MainWindow::buttonBackToTaskClicked()
	387	{
	388	tabWidget->setCurrentIndex(0);
	389	}
	390
[42]	391	void MainWindow::outputMatrix(tMatrix matrix, QStringList &output, int nRow, int nCol)
	392	{
	393	int n = spinCities->value();
	394	QString line="";
	395	output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
	396	for (int r = 0; r < n; r++) {
	397	line = "<tr>";
	398	for (int c = 0; c < n; c++) {
	399	if (matrix[r][c] == INFINITY)
	400	line += "<td align=\"center\">"INFSTR"</td>";
	401	else if ((r == nRow) && (c == nCol))
	402	line += "<td align=\"center\" class=\"selected\">" + QVariant(matrix[r][c]).toString() + "</td>";
	403	else
	404	line += "<td align=\"center\">" + QVariant(matrix[r][c]).toString() + "</td>";
	405	}
	406	line += "</tr>";
	407	output.append(line);
	408	}
	409	output.append("</table>");
	410	}
	411
[29]	412	void MainWindow::buttonSolveClicked()
[6]	413	{
[13]	414	tMatrix matrix;
[42]	415	QList<double> row;
[15]	416	int n = spinCities->value();
[13]	417	bool ok;
[15]	418	for (int r = 0; r < n; r++) {
[42]	419	row.clear();
[15]	420	for (int c = 0; c < n; c++) {
[42]	421	row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
[15]	422	if (!ok) {
[47]	423	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]	424	return;
[13]	425	}
	426	}
	427	matrix.append(row);
	428	}
	429	CTSPSolver solver;
[50]	430	sStep *root = solver.solve(n,matrix,this);
[13]	431	if (!root)
[42]	432	return;
	433	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
	434	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
	435	output.clear();
	436	output.append("<p>" + trUtf8("Variant #%1").arg(spinVariant->value()) + "</p>");
	437	output.append("<p>" + trUtf8("Task:") + "</p>");
	438	outputMatrix(matrix,output);
	439	output.append("<hr>");
	440	output.append("<p>" + trUtf8("Solution of Variant #%1 task").arg(spinVariant->value()) + "</p>");
	441	sStep *step = root;
	442	n = 1;
	443	QString path = "";
	444	while (n <= spinCities->value()) {
	445	if (step->prNode->prNode != NULL \|\| (step->prNode->prNode == NULL && step->plNode->prNode == NULL)) {
	446	if (n != spinCities->value()) {
	447	output.append("<p>" + trUtf8("Step #%1").arg(n++) + "</p>");
	448	outputMatrix(step->matrix,output,step->candidate.nRow,step->candidate.nCol);
	449	if (step->alts)
	450	output.append("<p class=\"hasalts\">" + trUtf8("This step has alternate candidates for branching.") + "</p>");
	451	output.append("<p> </p>");
	452	}
	453	path += QString(" (%1,%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1);
	454	}
	455	if (step->prNode->prNode != NULL)
	456	step = step->prNode;
	457	else if (step->plNode->prNode != NULL)
	458	step = step->plNode;
	459	else
	460	break;
	461	}
	462	output.append("<p>" + trUtf8("Optimal path:") + "</p>");
	463	output.append("<p>  " + path + "</p>");
	464	output.append("<p>" + trUtf8("The price is <b>%1</b> units.").arg(step->price) + "</p>");
	465	solutionText->setHtml(output.join(""));
	466	solutionText->setDocumentTitle(trUtf8("Solution of Variant #%1 task").arg(spinVariant->value()));
	467	enableSolutionActions();
	468	tabWidget->setCurrentIndex(1);
	469	QApplication::restoreOverrideCursor();
[6]	470	}
[21]	471
[29]	472	void MainWindow::actionHelpAboutTriggered()
[21]	473	{
	474	// TODO: Normal about window :-)
[30]	475	QString about = QString::fromUtf8("TSPSG - TSP Solver and Generator\n");
[45]	476	about += QString::fromUtf8(" Version: "BUILD_VERSION"\n");
[42]	477	about += QString::fromUtf8(" Copyright (C) 2007-%1 Lёppa <contacts[at]oleksii[dot]name>\n").arg(QDate::currentDate().toString("yyyy"));
[37]	478	about += QString::fromUtf8("Target OS: %1\n").arg(OS);
	479	about += "Qt library:\n";
[30]	480	about += QString::fromUtf8(" Compile time: %1\n").arg(QT_VERSION_STR);
	481	about += QString::fromUtf8(" Runtime: %1\n").arg(qVersion());
[41]	482	about += QString::fromUtf8("Built on %1 at %2\n").arg(__DATE__).arg(__TIME__);
[30]	483	about += "\n";
	484	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.";
[27]	485	QMessageBox(QMessageBox::Information,"About",about,QMessageBox::Ok,this).exec();
[21]	486	}
	487
[29]	488	void MainWindow::loadLangList()
	489	{
	490	QSettings langinfo("i18n/languages.ini",QSettings::IniFormat);
[33]	491	#if QT_VERSION >= 0x040500
	492	// In Qt < 4.5 QSettings doesn't have method setIniCodec.
[29]	493	langinfo.setIniCodec("UTF-8");
[33]	494	#endif
[29]	495	QDir dir("i18n","*.qm",QDir::Name \| QDir::IgnoreCase,QDir::Files);
	496	if (!dir.exists())
	497	return;
	498	QFileInfoList langs = dir.entryInfoList();
	499	if (langs.size() <= 0)
	500	return;
	501	QAction *a;
	502	for (int k = 0; k < langs.size(); k++) {
	503	QFileInfo lang = langs.at(k);
[30]	504	if (!lang.completeBaseName().startsWith("qt_") && lang.completeBaseName().compare("en")) {
[33]	505	#if QT_VERSION >= 0x040500
[29]	506	a = menuSettingsLanguage->addAction(langinfo.value(lang.completeBaseName() + "/NativeName",lang.completeBaseName()).toString());
[33]	507	#else
	508	// We use Name if Qt < 4.5 because NativeName is in UTF-8, QSettings
	509	// reads .ini file as ASCII and there is no way to set file encoding.
	510	a = menuSettingsLanguage->addAction(langinfo.value(lang.completeBaseName() + "/Name",lang.completeBaseName()).toString());
	511	#endif
[29]	512	a->setData(lang.completeBaseName());
	513	a->setCheckable(true);
	514	a->setActionGroup(groupSettingsLanguageList);
	515	if (settings->value("Language",QLocale::system().name()).toString().startsWith(lang.completeBaseName()))
	516	a->setChecked(true);
	517	}
	518	}
	519	}
	520
	521	void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
	522	{
	523	if (checked) {
	524	settings->remove("Language");
	525	QMessageBox(QMessageBox::Information,trUtf8("Language change"),trUtf8("Language will be autodetected on next application start."),QMessageBox::Ok,this).exec();
	526	} else
	527	settings->setValue("Language",groupSettingsLanguageList->checkedAction()->data().toString());
	528	}
	529
	530	void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
	531	{
	532	if (actionSettingsLanguageAutodetect->isChecked()) {
	533	// We have language autodetection. It needs to be disabled to change language.
	534	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) {
	535	actionSettingsLanguageAutodetect->trigger();
	536	} else
	537	return;
	538	}
[47]	539	bool untitled = (fileName == trUtf8("Untitled") + ".tspt");
[30]	540	if (loadLanguage(action->data().toString())) {
[29]	541	settings->setValue("Language",action->data().toString());
	542	retranslateUi(this);
[47]	543	if (untitled)
	544	setFileName();
[29]	545	}
	546	}
	547
[21]	548	void MainWindow::closeEvent(QCloseEvent *event)
	549	{
[47]	550	if (!maybeSave()) {
	551	event->ignore();
	552	return;
[37]	553	}
[26]	554	settings->setValue("NumCities",spinCities->value());
	555	#ifndef Q_OS_WINCE
[21]	556	// Saving windows state
[23]	557	if (settings->value("SavePos",false).toBool()) {
	558	settings->beginGroup("MainWindow");
	559	settings->setValue("Maximized",isMaximized());
[21]	560	if (!isMaximized()) {
[23]	561	settings->setValue("Size",size());
	562	settings->setValue("Position",pos());
[21]	563	}
[23]	564	settings->endGroup();
[21]	565	}
[26]	566	#endif // Q_OS_WINCE
[21]	567	QMainWindow::closeEvent(event);
	568	}
[31]	569
[37]	570	void MainWindow::dataChanged()
	571	{
	572	setWindowModified(true);
	573	}
	574
[31]	575	void MainWindow::numCitiesChanged(int nCities)
	576	{
[50]	577	blockSignals(true);
[31]	578	spinCities->setValue(nCities);
[50]	579	blockSignals(false);
[31]	580	}

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