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source: tspsg/src/mainwindow.cpp @ e2abfd326f

0.1.3.145-beta1-symbian0.1.4.170-beta2-bb10appveyorimgbotreadme

Last change on this file since e2abfd326f was e2abfd326f, checked in by Oleksii Serdiuk, 14 years ago

+ Translatable About dialog.

Improved installation rules in .pro file.
Disabled SVG and JPEG support. They aren't needed at this point.
Fixed a bug when labels were hardly visible under Windows Vista/7 whith translucency on and a dark background behind the application.
Fixed a bug when Main Window area was blank if the application was compiled using Qt < 4.6.0.

Property mode set to 100644

File size: 35.4 KB

Line
1	/*
2	* TSPSG: TSP Solver and Generator
3	* Copyright (C) 2007-2010 Lёppa <contacts[at]oleksii[dot]name>
4	*
5	* $Id$
6	* $URL$
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();
40
41	initDocStyleSheet();
42
43	#ifndef QT_NO_PRINTER
44	printer = new QPrinter(QPrinter::HighResolution);
45	#endif // QT_NO_PRINTER
46
47	#ifdef Q_OS_WINCE
48	currentGeometry = QApplication::desktop()->availableGeometry(0);
49	// We need to react to SIP show/hide and resize the window appropriately
50	connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), SLOT(desktopResized(int)));
51	#endif // Q_OS_WINCE
52	connect(actionFileNew,SIGNAL(triggered()),this,SLOT(actionFileNewTriggered()));
53	connect(actionFileOpen,SIGNAL(triggered()),this,SLOT(actionFileOpenTriggered()));
54	connect(actionFileSave,SIGNAL(triggered()),this,SLOT(actionFileSaveTriggered()));
55	connect(actionFileSaveAsTask,SIGNAL(triggered()),this,SLOT(actionFileSaveAsTaskTriggered()));
56	connect(actionFileSaveAsSolution,SIGNAL(triggered()),this,SLOT(actionFileSaveAsSolutionTriggered()));
57	#ifndef QT_NO_PRINTER
58	connect(actionFilePrintPreview,SIGNAL(triggered()),this,SLOT(actionFilePrintPreviewTriggered()));
59	connect(actionFilePrint,SIGNAL(triggered()),this,SLOT(actionFilePrintTriggered()));
60	#endif // QT_NO_PRINTER
61	connect(actionSettingsPreferences,SIGNAL(triggered()),this,SLOT(actionSettingsPreferencesTriggered()));
62	connect(actionSettingsLanguageAutodetect,SIGNAL(triggered(bool)),this,SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
63	connect(groupSettingsLanguageList,SIGNAL(triggered(QAction )),this,SLOT(groupSettingsLanguageListTriggered(QAction )));
64	connect(actionHelpAboutQt,SIGNAL(triggered()),qApp,SLOT(aboutQt()));
65	connect(actionHelpAbout,SIGNAL(triggered()),this,SLOT(actionHelpAboutTriggered()));
66
67	connect(buttonSolve,SIGNAL(clicked()),this,SLOT(buttonSolveClicked()));
68	connect(buttonRandom,SIGNAL(clicked()),this,SLOT(buttonRandomClicked()));
69	connect(buttonBackToTask,SIGNAL(clicked()),this,SLOT(buttonBackToTaskClicked()));
70	connect(spinCities,SIGNAL(valueChanged(int)),this,SLOT(spinCitiesValueChanged(int)));
71
72	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
73	// Centering main window
74	QRect rect = geometry();
75	rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
76	setGeometry(rect);
77	if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
78	// Loading of saved window state
79	settings->beginGroup("MainWindow");
80	restoreGeometry(settings->value("Geometry").toByteArray());
81	restoreState(settings->value("State").toByteArray());
82	settings->endGroup();
83	}
84	#else
85	setWindowState(Qt::WindowMaximized);
86	#endif // Q_OS_WINCE
87
88	tspmodel = new CTSPModel(this);
89	taskView->setModel(tspmodel);
90	connect(tspmodel,SIGNAL(numCitiesChanged(int)),this,SLOT(numCitiesChanged(int)));
91	connect(tspmodel,SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),this,SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
92	connect(tspmodel,SIGNAL(layoutChanged()),this,SLOT(dataChanged()));
93	if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
94	setFileName(QCoreApplication::arguments().at(1));
95	else {
96	setFileName();
97	spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
98	spinCitiesValueChanged(spinCities->value());
99	}
100	setWindowModified(false);
101	}
102
103	MainWindow::~MainWindow()
104	{
105	#ifndef QT_NO_PRINTER
106	delete printer;
107	#endif
108	}
109
110	/* Privates **********************************************************/
111
112	void MainWindow::actionFileNewTriggered()
113	{
114	if (!maybeSave())
115	return;
116	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
117	tspmodel->clear();
118	setFileName();
119	setWindowModified(false);
120	tabWidget->setCurrentIndex(0);
121	solutionText->clear();
122	toggleSolutionActions(false);
123	QApplication::restoreOverrideCursor();
124	}
125
126	void MainWindow::actionFileOpenTriggered()
127	{
128	if (!maybeSave())
129	return;
130
131	QStringList filters(tr("All Supported Formats") + " (.tspt .zkt)");
132	filters.append(tr("%1 Task Files").arg("TSPSG") + " (*.tspt)");
133	filters.append(tr("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
134	filters.append(tr("All Files") + " (*)");
135
136	QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
137	QString file = QFileDialog::getOpenFileName(this, tr("Task Load"), QString(), filters.join(";;"), NULL, opts);
138	if (file.isEmpty() \|\| !QFileInfo(file).isFile())
139	return;
140	if (!tspmodel->loadTask(file))
141	return;
142	setFileName(file);
143	tabWidget->setCurrentIndex(0);
144	setWindowModified(false);
145	solutionText->clear();
146	toggleSolutionActions(false);
147	}
148
149	void MainWindow::actionFileSaveTriggered()
150	{
151	qDebug() << tr("Untitled");
152	if ((fileName == tr("Untitled") + ".tspt") \|\| (!fileName.endsWith(".tspt", Qt::CaseInsensitive)))
153	saveTask();
154	else
155	if (tspmodel->saveTask(fileName))
156	setWindowModified(false);
157	}
158
159	void MainWindow::actionFileSaveAsTaskTriggered()
160	{
161	saveTask();
162	}
163
164	void MainWindow::actionFileSaveAsSolutionTriggered()
165	{
166	static QString selectedFile;
167	if (selectedFile.isEmpty()) {
168	if (fileName == tr("Untitled") + ".tspt") {
169	#ifndef QT_NO_PRINTER
170	selectedFile = "solution.pdf";
171	#else
172	selectedFile = "solution.html";
173	#endif // QT_NO_PRINTER
174	} else {
175	#ifndef QT_NO_PRINTER
176	selectedFile = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".pdf";
177	#else
178	selectedFile = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".html";
179	#endif // QT_NO_PRINTER
180	}
181	}
182
183	QStringList filters;
184	#ifndef QT_NO_PRINTER
185	filters.append(tr("PDF Files") + " (*.pdf)");
186	#endif
187	filters.append(tr("HTML Files") + " (.html .htm)");
188	#if QT_VERSION >= 0x040500
189	filters.append(tr("OpenDocument Files") + " (*.odt)");
190	#endif // QT_VERSION >= 0x040500
191	filters.append(tr("All Files") + " (*)");
192
193	QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
194	QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, opts);
195	if (file.isEmpty())
196	return;
197	selectedFile = file;
198	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
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
209	#if QT_VERSION >= 0x040500
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());
214	#else
215	// Qt < 4.5 has no QTextDocumentWriter class
216	QFile file(selectedFile);
217	if (!file.open(QFile::WriteOnly)) {
218	QApplication::restoreOverrideCursor();
219	return;
220	}
221	QTextStream ts(&file);
222	ts.setCodec(QTextCodec::codecForName("UTF-8"));
223	ts << solutionText->document()->toHtml("UTF-8");
224	file.close();
225	#endif // QT_VERSION >= 0x040500
226	QApplication::restoreOverrideCursor();
227	}
228
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();
235	}
236
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
253	void MainWindow::actionSettingsPreferencesTriggered()
254	{
255	SettingsDialog sd(this);
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,tr("Settings Changed"),tr("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	}
267	if (sd.translucencyChanged() != 0) {
268	toggleTranclucency(sd.translucencyChanged() == 1);
269	}
270	}
271
272	void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
273	{
274	if (checked) {
275	settings->remove("Language");
276	QMessageBox::information(this, tr("Language change"), tr("Language will be autodetected on next application start."));
277	} else
278	settings->setValue("Language", groupSettingsLanguageList->checkedAction()->data().toString());
279	}
280
281	void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
282	{
283	if (actionSettingsLanguageAutodetect->isChecked()) {
284	// We have language autodetection. It needs to be disabled to change language.
285	if (QMessageBox(QMessageBox::Question,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,this).exec() == QMessageBox::Yes) {
286	actionSettingsLanguageAutodetect->trigger();
287	} else
288	return;
289	}
290	bool untitled = (fileName == tr("Untitled") + ".tspt");
291	if (loadLanguage(action->data().toString())) {
292	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
293	settings->setValue("Language",action->data().toString());
294	retranslateUi();
295	if (untitled)
296	setFileName();
297	#ifdef Q_OS_WIN32
298	if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool()) {
299	toggleStyle(labelVariant, true);
300	toggleStyle(labelCities, true);
301	}
302	#endif
303	QApplication::restoreOverrideCursor();
304	}
305	}
306
307	void MainWindow::actionHelpAboutTriggered()
308	{
309	//! \todo TODO: Normal about window :-)
310	QString title;
311	#if defined(Q_OS_WINCE) \|\| defined(Q_OS_SYMBIAN)
312	title += QString("<b>TSPSG<br>TSP Solver and Generator</b><br>");
313	#else
314	title += QString("<b>TSPSG: TSP Solver and Generator</b><br>");
315	#endif // Q_OS_WINCE \|\| Q_OS_SYMBIAN
316	title += QString("%1: <b>%2</b><br>").arg(tr("Version"), BUILD_VERSION);
317	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
318	title += QString("<b>© 2007-%1 Oleksii \"Lёppa\" Serdiuk</b><br>").arg(QDate::currentDate().toString("yyyy"));
319	title += QString("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sourceforge.net/</a></b>");
320	#else
321	title += QString("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sf.net/</a></b>");
322	#endif // Q_OS_WINCE && Q_OS_SYMBIAN
323
324	QString about;
325	about += QString("%1: <b>%2</b><br>").arg(tr("Target OS (ARCH)"), OS);
326	#ifndef STATIC_BUILD
327	about += QString("%1 (%2):<br>").arg(tr("Qt library"), tr("shared"));
328	about += QString("    %1: <b>%2</b><br>").arg(tr("Build time"), QT_VERSION_STR);
329	about += QString("    %1: <b>%2</b><br>").arg(tr("Runtime"), qVersion());
330	#else
331	about += QString("%1: <b>%2</b> (%3)<br>").arg(tr("Qt library"), QT_VERSION_STR, tr("static"));
332	#endif // STATIC_BUILD
333	about += tr("Buid <b>%1</b>, built on <b>%2</b> at <b>%3</b>").arg(BUILD_NUMBER).arg(__DATE__).arg(__TIME__) + "<br>";
334	about += QString("%1: <b>%2</b><br>").arg(tr("Algorithm"), CTSPSolver::getVersionId());
335	about += "<br>";
336	about += tr("TSPSG is free software: you can redistribute it and/or modify it<br>"
337	"under the terms of the GNU General Public License as published<br>"
338	"by the Free Software Foundation, either version 3 of the License,<br>"
339	"or (at your option) any later version.<br>"
340	"<br>"
341	"TSPSG is distributed in the hope that it will be useful, but<br>"
342	"WITHOUT ANY WARRANTY; without even the implied warranty of<br>"
343	"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>"
344	"GNU General Public License for more details.<br>"
345	"<br>"
346	"You should have received a copy of the GNU General Public License<br>"
347	"along with TSPSG. If not, see <a href=\"http://www.gnu.org/licenses/\">http://www.gnu.org/licenses/</a>.");
348
349	QDialog *dlg = new QDialog(this);
350	QLabel *lblIcon = new QLabel(dlg),
351	*lblTitle = new QLabel(dlg),
352	*lblTranslated = new QLabel(dlg);
353	#if defined(Q_OS_WINCE) \|\| defined(Q_OS_SYMBIAN)
354	QLabel *lblSubTitle = new QLabel(QString("<b>© 2007-%1 Oleksii \"Lёppa\" Serdiuk</b>").arg(QDate::currentDate().toString("yyyy")), dlg);
355	#endif // Q_OS_WINCE \|\| Q_OS_SYMBIAN
356	QTextBrowser *txtAbout = new QTextBrowser(dlg);
357	QVBoxLayout *vb = new QVBoxLayout();
358	QHBoxLayout *hb1 = new QHBoxLayout(),
359	*hb2 = new QHBoxLayout();
360	QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok, Qt::Horizontal, dlg);
361
362	lblIcon->setPixmap(QPixmap(":/images/tspsg.png").scaledToWidth(logicalDpiX() * 2 / 3, Qt::SmoothTransformation));
363	lblIcon->setAlignment(Qt::AlignTop);
364	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
365	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()));
366	#endif
367
368	lblTitle->setOpenExternalLinks(true);
369	lblTitle->setText(title);
370	lblTitle->setAlignment(Qt::AlignTop);
371	lblTitle->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
372	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
373	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()));
374	#endif
375
376	hb1->addWidget(lblIcon);
377	hb1->addWidget(lblTitle);
378
379	txtAbout->setWordWrapMode(QTextOption::NoWrap);
380	txtAbout->setOpenExternalLinks(true);
381	txtAbout->setHtml(about);
382	txtAbout->moveCursor(QTextCursor::Start);
383	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
384	txtAbout->setStyleSheet(QString("QTextBrowser {border-color: %1; border-width: 1px; border-style: solid; border-radius: 3px;}").arg(palette().shadow().color().name()));
385	#endif
386
387	bb->button(QDialogButtonBox::Ok)->setCursor(QCursor(Qt::PointingHandCursor));
388
389	lblTranslated->setText(QApplication::translate("--------", "TRANSLATION", "Please, provide translator credits here."));
390	if (lblTranslated->text() == "TRANSLATION")
391	lblTranslated->hide();
392	else {
393	lblTranslated->setOpenExternalLinks(true);
394	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
395	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()));
396	#endif
397	hb2->addWidget(lblTranslated);
398	}
399
400	hb2->addWidget(bb);
401
402	#if defined(Q_OS_WINCE)
403	vb->setMargin(3);
404	#endif
405	vb->addLayout(hb1);
406	#if defined(Q_OS_WINCE) \|\| defined(Q_OS_SYMBIAN)
407	vb->addWidget(lblSubTitle);
408	#endif // Q_OS_WINCE \|\| Q_OS_SYMBIAN
409	vb->addWidget(txtAbout);
410	vb->addLayout(hb2);
411
412	dlg->setWindowFlags(Qt::Dialog \| Qt::CustomizeWindowHint \| Qt::WindowTitleHint \| Qt::WindowCloseButtonHint \| Qt::MSWindowsFixedSizeDialogHint);
413	dlg->setWindowTitle(tr("About TSPSG"));
414	dlg->setLayout(vb);
415
416	connect(bb, SIGNAL(accepted()), dlg, SLOT(accept()));
417
418	#ifdef Q_OS_WIN32
419	// Adding some eyecandy in Vista and 7 :-)
420	if (QtWin::isCompositionEnabled()) {
421	QtWin::enableBlurBehindWindow(dlg, true);
422	}
423	#endif // Q_OS_WIN32
424
425	dlg->resize(450, 350);
426
427	dlg->exec();
428
429	delete dlg;
430	}
431
432	void MainWindow::buttonBackToTaskClicked()
433	{
434	tabWidget->setCurrentIndex(0);
435	}
436
437	void MainWindow::buttonRandomClicked()
438	{
439	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
440	tspmodel->randomize();
441	QApplication::restoreOverrideCursor();
442	}
443
444	void MainWindow::buttonSolveClicked()
445	{
446	TMatrix matrix;
447	QList<double> row;
448	int n = spinCities->value();
449	bool ok;
450	for (int r = 0; r < n; r++) {
451	row.clear();
452	for (int c = 0; c < n; c++) {
453	row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
454	if (!ok) {
455	QMessageBox(QMessageBox::Critical,tr("Data error"),tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1),QMessageBox::Ok,this).exec();
456	return;
457	}
458	}
459	matrix.append(row);
460	}
461	CTSPSolver solver;
462	SStep *root = solver.solve(n,matrix,this);
463	if (!root)
464	return;
465	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
466	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
467	output.clear();
468	output.append("<p>" + tr("Variant #%1").arg(spinVariant->value()) + "</p>");
469	output.append("<p>" + tr("Task:") + "</p>");
470	outputMatrix(matrix, output);
471	output.append("<hr>");
472	output.append("<p>" + tr("Solution of Variant #%1 task").arg(spinVariant->value()) + "</p>");
473	SStep *step = root;
474	n = 1;
475	while (n <= spinCities->value()) {
476	if (step->prNode->prNode != NULL \|\| ((step->prNode->prNode == NULL) && (step->plNode->prNode == NULL))) {
477	if (n != spinCities->value()) {
478	output.append("<p>" + tr("Step #%1").arg(n++) + "</p>");
479	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())))) {
480	outputMatrix(*step, output);
481	}
482	output.append("<p>" + tr("Selected candidate for branching: %1.").arg(tr("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)) + "</p>");
483	if (!step->alts.empty()) {
484	SCandidate cand;
485	QString alts;
486	foreach(cand, step->alts) {
487	if (!alts.isEmpty())
488	alts += ", ";
489	alts += tr("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
490	}
491	output.append("<p class=\"hasalts\">" + tr("%n alternate candidate(s) for branching: %1.","",step->alts.count()).arg(alts) + "</p>");
492	}
493	output.append("<p> </p>");
494	}
495	}
496	if (step->prNode->prNode != NULL)
497	step = step->prNode;
498	else if (step->plNode->prNode != NULL)
499	step = step->plNode;
500	else
501	break;
502	}
503	if (solver.isOptimal())
504	output.append("<p>" + tr("Optimal path:") + "</p>");
505	else
506	output.append("<p>" + tr("Resulting path:") + "</p>");
507	output.append("<p>  " + solver.getSortedPath() + "</p>");
508	if (isInteger(step->price))
509	output.append("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
510	else
511	output.append("<p>" + tr("The price is <b>%1</b> units.").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()) + "</p>");
512	if (!solver.isOptimal()) {
513	output.append("<p> </p>");
514	output.append("<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>");
515	}
516	output.append("<p></p>");
517
518	solutionText->setHtml(output.join(""));
519	solutionText->setDocumentTitle(tr("Solution of Variant #%1 task").arg(spinVariant->value()));
520
521	if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
522	// Scrolling to the end of text.
523	solutionText->moveCursor(QTextCursor::End);
524	}
525
526	toggleSolutionActions();
527	tabWidget->setCurrentIndex(1);
528	QApplication::restoreOverrideCursor();
529	}
530
531	void MainWindow::dataChanged()
532	{
533	setWindowModified(true);
534	}
535
536	void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
537	{
538	setWindowModified(true);
539	if (settings->value("Autosize", DEF_AUTOSIZE).toBool()) {
540	for (int k = tl.row(); k <= br.row(); k++)
541	taskView->resizeRowToContents(k);
542	for (int k = tl.column(); k <= br.column(); k++)
543	taskView->resizeColumnToContents(k);
544	}
545	}
546
547	#ifdef Q_OS_WINCE
548	void MainWindow::changeEvent(QEvent *ev)
549	{
550	if ((ev->type() == QEvent::ActivationChange) && isActiveWindow())
551	desktopResized(0);
552
553	QWidget::changeEvent(ev);
554	}
555
556	void MainWindow::desktopResized(int screen)
557	{
558	if ((screen != 0) \|\| !isActiveWindow())
559	return;
560
561	QRect availableGeometry = QApplication::desktop()->availableGeometry(0);
562	if (currentGeometry != availableGeometry) {
563	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
564	/*!
565	* \hack HACK: This hack checks whether \link QDesktopWidget::availableGeometry() availableGeometry()\endlink's \c top + \c hegiht = \link QDesktopWidget::screenGeometry() screenGeometry()\endlink's \c height.
566	* If \c true, the window gets maximized. If we used \c setGeometry() in this case, the bottom of the
567	* window would end up being behind the soft buttons. Is this a bug in Qt or Windows Mobile?
568	*/
569	if ((availableGeometry.top() + availableGeometry.height()) == QApplication::desktop()->screenGeometry().height()) {
570	setWindowState(windowState() \| Qt::WindowMaximized);
571	} else {
572	if (windowState() & Qt::WindowMaximized)
573	setWindowState(windowState() ^ Qt::WindowMaximized);
574	setGeometry(availableGeometry);
575	}
576	currentGeometry = availableGeometry;
577	QApplication::restoreOverrideCursor();
578	}
579	}
580	#endif // Q_OS_WINCE
581
582	void MainWindow::numCitiesChanged(int nCities)
583	{
584	blockSignals(true);
585	spinCities->setValue(nCities);
586	blockSignals(false);
587	}
588
589	#ifndef QT_NO_PRINTER
590	void MainWindow::printPreview(QPrinter *printer)
591	{
592	solutionText->print(printer);
593	}
594	#endif // QT_NO_PRINTER
595
596	void MainWindow::spinCitiesValueChanged(int n)
597	{
598	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
599	int count = tspmodel->numCities();
600	tspmodel->setNumCities(n);
601	if ((n > count) && settings->value("Autosize", DEF_AUTOSIZE).toBool())
602	for (int k = count; k < n; k++) {
603	taskView->resizeColumnToContents(k);
604	taskView->resizeRowToContents(k);
605	}
606	QApplication::restoreOverrideCursor();
607	}
608
609	void MainWindow::closeEvent(QCloseEvent *ev)
610	{
611	if (!maybeSave()) {
612	ev->ignore();
613	return;
614	}
615	if (!settings->value("SettingsReset", false).toBool()) {
616	settings->setValue("NumCities", spinCities->value());
617
618	// Saving Main Window state
619	if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
620	settings->beginGroup("MainWindow");
621	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
622	settings->setValue("Geometry", saveGeometry());
623	#endif // Q_OS_WINCE
624	settings->setValue("State", saveState());
625	settings->endGroup();
626	}
627	} else {
628	settings->remove("SettingsReset");
629	}
630
631	QMainWindow::closeEvent(ev);
632	}
633
634	void MainWindow::initDocStyleSheet()
635	{
636	QColor color = settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>();
637	QColor hilight;
638	if (color.value() < 192)
639	hilight.setHsv(color.hue(),color.saturation(),127 + qRound(color.value() / 2));
640	else
641	hilight.setHsv(color.hue(),color.saturation(),color.value() / 2);
642	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;}");
643	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
644	}
645
646	void MainWindow::loadLangList()
647	{
648	QDir dir(PATH_L10N, "tspsg_*.qm", QDir::Name \| QDir::IgnoreCase, QDir::Files);
649	if (!dir.exists())
650	return;
651	QFileInfoList langs = dir.entryInfoList();
652	if (langs.size() <= 0)
653	return;
654	QAction *a;
655	QTranslator t;
656	QString name;
657	for (int k = 0; k < langs.size(); k++) {
658	QFileInfo lang = langs.at(k);
659	if (lang.completeBaseName().compare("tspsg_en", Qt::CaseInsensitive) && t.load(lang.completeBaseName(), PATH_L10N)) {
660	name = t.translate("--------", "LANGNAME", "Please, provide a native name of your translation language here.");
661	a = menuSettingsLanguage->addAction(name);
662	a->setStatusTip(QString("Set application language to %1").arg(name));
663	a->setData(lang.completeBaseName().mid(6));
664	a->setCheckable(true);
665	a->setActionGroup(groupSettingsLanguageList);
666	if (settings->value("Language", QLocale::system().name()).toString().startsWith(lang.completeBaseName().mid(6)))
667	a->setChecked(true);
668	}
669	}
670	}
671
672	bool MainWindow::loadLanguage(const QString &lang)
673	{
674	// i18n
675	bool ad = false;
676	QString lng = lang;
677	if (lng.isEmpty()) {
678	ad = settings->value("Language", "").toString().isEmpty();
679	lng = settings->value("Language", QLocale::system().name()).toString();
680	}
681	static QTranslator *qtTranslator; // Qt library translator
682	if (qtTranslator) {
683	qApp->removeTranslator(qtTranslator);
684	delete qtTranslator;
685	qtTranslator = NULL;
686	}
687	static QTranslator *translator; // Application translator
688	if (translator) {
689	qApp->removeTranslator(translator);
690	delete translator;
691	translator = NULL;
692	}
693
694	if (lng == "en")
695	return true;
696
697	// Trying to load system Qt library translation...
698	qtTranslator = new QTranslator(this);
699	if (qtTranslator->load("qt_" + lng, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
700	qApp->installTranslator(qtTranslator);
701	else {
702	// No luck. Let's try to load a bundled one.
703	if (qtTranslator->load("qt_" + lng, PATH_L10N))
704	qApp->installTranslator(qtTranslator);
705	else {
706	// Qt library translation unavailable
707	delete qtTranslator;
708	qtTranslator = NULL;
709	}
710	}
711
712	// Now let's load application translation.
713	translator = new QTranslator(this);
714	if (translator->load("tspsg_" + lng, PATH_L10N))
715	qApp->installTranslator(translator);
716	else {
717	delete translator;
718	translator = NULL;
719	if (!ad) {
720	settings->remove("Language");
721	if (QApplication::overrideCursor() != 0)
722	QApplication::restoreOverrideCursor();
723	if (isVisible())
724	QMessageBox::warning(this, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
725	else
726	QMessageBox::warning(NULL, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
727	}
728	return false;
729	}
730	return true;
731	}
732
733	bool MainWindow::maybeSave()
734	{
735	if (!isWindowModified())
736	return true;
737	int res = QMessageBox(QMessageBox::Warning,tr("Unsaved Changes"),tr("Would you like to save changes in current task?"),QMessageBox::Save \| QMessageBox::Discard \| QMessageBox::Cancel,this).exec();
738	if (res == QMessageBox::Save)
739	return saveTask();
740	else if (res == QMessageBox::Cancel)
741	return false;
742	else
743	return true;
744	}
745
746	void MainWindow::outputMatrix(const TMatrix &matrix, QStringList &output)
747	{
748	int n = spinCities->value();
749	QString line="";
750	output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
751	for (int r = 0; r < n; r++) {
752	line = "<tr>";
753	for (int c = 0; c < n; c++) {
754	if (matrix.at(r).at(c) == INFINITY)
755	line += "<td align=\"center\">"INFSTR"</td>";
756	else
757	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', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt());
758	}
759	line += "</tr>";
760	output.append(line);
761	}
762	output.append("</table>");
763	}
764
765	void MainWindow::outputMatrix(const SStep &step, QStringList &output)
766	{
767	int n = spinCities->value();
768	QString line="";
769	output.append("<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
770	for (int r = 0; r < n; r++) {
771	line = "<tr>";
772	for (int c = 0; c < n; c++) {
773	if (step.matrix.at(r).at(c) == INFINITY)
774	line += "<td align=\"center\">"INFSTR"</td>";
775	else if ((r == step.candidate.nRow) && (c == step.candidate.nCol))
776	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', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt());
777	else {
778	SCandidate cand;
779	cand.nRow = r;
780	cand.nCol = c;
781	if (step.alts.contains(cand))
782	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', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt());
783	else
784	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', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt());
785	}
786	}
787	line += "</tr>";
788	output.append(line);
789	}
790	output.append("</table>");
791	}
792
793	void MainWindow::retranslateUi(bool all)
794	{
795	if (all)
796	Ui::MainWindow::retranslateUi(this);
797
798	actionSettingsLanguageEnglish->setStatusTip(tr("Set application language to %1").arg("English"));
799
800	#ifndef QT_NO_PRINTER
801	actionFilePrintPreview->setText(QApplication::translate("MainWindow", "P&rint Preview...", 0, QApplication::UnicodeUTF8));
802	#ifndef QT_NO_TOOLTIP
803	actionFilePrintPreview->setToolTip(QApplication::translate("MainWindow", "Preview solution results", 0, QApplication::UnicodeUTF8));
804	#endif // QT_NO_TOOLTIP
805	#ifndef QT_NO_STATUSTIP
806	actionFilePrintPreview->setStatusTip(QApplication::translate("MainWindow", "Preview current solution results before printing", 0, QApplication::UnicodeUTF8));
807	#endif // QT_NO_STATUSTIP
808
809	actionFilePrint->setText(QApplication::translate("MainWindow", "&Print...", 0, QApplication::UnicodeUTF8));
810	#ifndef QT_NO_TOOLTIP
811	actionFilePrint->setToolTip(QApplication::translate("MainWindow", "Print solution", 0, QApplication::UnicodeUTF8));
812	#endif // QT_NO_TOOLTIP
813	#ifndef QT_NO_STATUSTIP
814	actionFilePrint->setStatusTip(QApplication::translate("MainWindow", "Print current solution results", 0, QApplication::UnicodeUTF8));
815	#endif // QT_NO_STATUSTIP
816	actionFilePrint->setShortcut(QApplication::translate("MainWindow", "Ctrl+P", 0, QApplication::UnicodeUTF8));
817	#endif // QT_NO_PRINTER
818	}
819
820	bool MainWindow::saveTask() {
821	QStringList filters(tr("%1 Task File").arg("TSPSG") + " (*.tspt)");
822	filters.append(tr("All Files") + " (*)");
823	QString file;
824	if (fileName.endsWith(".tspt", Qt::CaseInsensitive))
825	file = fileName;
826	else
827	file = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt";
828
829	QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
830	file = QFileDialog::getSaveFileName(this, tr("Task Save"), file, filters.join(";;"), NULL, opts);
831
832	if (file.isEmpty())
833	return false;
834	if (tspmodel->saveTask(file)) {
835	setFileName(file);
836	setWindowModified(false);
837	return true;
838	}
839	return false;
840	}
841
842	void MainWindow::setFileName(const QString &fileName)
843	{
844	this->fileName = fileName;
845	setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(tr("Travelling Salesman Problem")));
846	}
847
848	void MainWindow::setupUi()
849	{
850	Ui::MainWindow::setupUi(this);
851
852	#if QT_VERSION >= 0x040600
853	setToolButtonStyle(Qt::ToolButtonFollowStyle);
854	#endif
855
856	#if !defined(Q_OS_WINCE) && !defined(Q_OS_SYMBIAN)
857	QStatusBar *statusbar = new QStatusBar(this);
858	statusbar->setObjectName("statusbar");
859	setStatusBar(statusbar);
860	#endif // Q_OS_WINCE
861
862	#ifdef Q_OS_WINCE
863	menuBar()->setDefaultAction(menuFile->menuAction());
864
865	QScrollArea *scrollArea = new QScrollArea(this);
866	scrollArea->setFrameShape(QFrame::NoFrame);
867	scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
868	scrollArea->setWidgetResizable(true);
869	scrollArea->setWidget(tabWidget);
870	setCentralWidget(scrollArea);
871	#else
872	setCentralWidget(tabWidget);
873	#endif // Q_OS_WINCE
874
875	//! \hack HACK: A little hack for toolbar icons to have a sane size.
876	#ifdef Q_OS_WINCE
877	toolBar->setIconSize(QSize(logicalDpiX() / 4, logicalDpiY() / 4));
878	#elif defined(Q_OS_SYMBIAN)
879	toolBar->setIconSize(QSize(logicalDpiX() / 5, logicalDpiY() / 5));
880	#endif // Q_OS_WINCE
881
882	solutionText->document()->setDefaultFont(settings->value("Output/Font",QFont(DEF_FONT_FAMILY,DEF_FONT_SIZE)).value<QFont>());
883	solutionText->setTextColor(settings->value("Output/Color",DEF_FONT_COLOR).value<QColor>());
884	solutionText->setWordWrapMode(QTextOption::WordWrap);
885
886	#ifndef QT_NO_PRINTER
887	actionFilePrintPreview = new QAction(this);
888	actionFilePrintPreview->setObjectName("actionFilePrintPreview");
889	actionFilePrintPreview->setEnabled(false);
890	actionFilePrintPreview->setIcon(QIcon(":/images/icons/document_preview.png"));
891
892	actionFilePrint = new QAction(this);
893	actionFilePrint->setObjectName("actionFilePrint");
894	actionFilePrint->setEnabled(false);
895	actionFilePrint->setIcon(QIcon(":/images/icons/fileprint.png"));
896
897	menuFile->insertAction(actionFileExit,actionFilePrintPreview);
898	menuFile->insertAction(actionFileExit,actionFilePrint);
899	menuFile->insertSeparator(actionFileExit);
900
901	toolBar->insertAction(actionSettingsPreferences,actionFilePrint);
902	#endif // QT_NO_PRINTER
903
904	groupSettingsLanguageList = new QActionGroup(this);
905	actionSettingsLanguageEnglish->setData("en");
906	actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
907	loadLangList();
908	actionSettingsLanguageAutodetect->setChecked(settings->value("Language", "").toString().isEmpty());
909
910	spinCities->setMaximum(MAX_NUM_CITIES);
911
912	retranslateUi(false);
913
914	#ifdef Q_OS_WIN32
915	// Adding some eyecandy in Vista and 7 :-)
916	if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool()) {
917	toggleTranclucency(true);
918	}
919	#endif // Q_OS_WIN32
920	}
921
922	void MainWindow::toggleSolutionActions(bool enable)
923	{
924	buttonSaveSolution->setEnabled(enable);
925	actionFileSaveAsSolution->setEnabled(enable);
926	solutionText->setEnabled(enable);
927	if (!enable)
928	output.clear();
929	#ifndef QT_NO_PRINTER
930	actionFilePrint->setEnabled(enable);
931	actionFilePrintPreview->setEnabled(enable);
932	#endif // QT_NO_PRINTER
933	}
934
935	void MainWindow::toggleTranclucency(bool enable)
936	{
937	#ifdef Q_OS_WIN32
938	toggleStyle(labelVariant, enable);
939	toggleStyle(labelCities, enable);
940	toggleStyle(statusBar(), enable);
941	tabWidget->setDocumentMode(enable);
942	QtWin::enableBlurBehindWindow(this, enable);
943	#else
944	Q_UNUSED(enable);
945	#endif // Q_OS_WIN32
946	}

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