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source: tspsg-svn/trunk/src/mainwindow.cpp @ 122

Last change on this file since 122 was 122, checked in by laleppa, 14 years ago
Set eol-style attribute of text and project files to native. Removed unused icons from resources in handheld version.
Property svn:eol-style set to `native` Property svn:keywords set to `Id URL`
File size: 50.3 KB

Line
1	/*
2	* TSPSG: TSP Solver and Generator
3	* Copyright (C) 2007-2010 Lёppa <contacts[at]oleksii[dot]name>
4	*
5	* $Id: mainwindow.cpp 122 2010-06-22 20:19:42Z laleppa $
6	* $URL: https://tspsg.svn.sourceforge.net/svnroot/tspsg/trunk/src/mainwindow.cpp $
7	*
8	* This file is part of TSPSG.
9	*
10	* TSPSG is free software: you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation, either version 3 of the License, or
13	* (at your option) any later version.
14	*
15	* TSPSG is distributed in the hope that it will be useful,
16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	* GNU General Public License for more details.
19	*
20	* You should have received a copy of the GNU General Public License
21	* along with TSPSG. If not, see <http://www.gnu.org/licenses/>.
22	*/
23
24	#include "mainwindow.h"
25
26	#ifdef _T_T_L_
27	#include "_.h"
28	_C_ _R_ _Y_ _P_ _T_
29	#endif
30
31	/*!
32	* \brief Class constructor.
33	* \param parent Main Window parent widget.
34	*
35	* Initializes Main Window and creates its layout based on target OS.
36	* Loads TSPSG settings and opens a task file if it was specified as a commandline parameter.
37	*/
38	MainWindow::MainWindow(QWidget *parent)
39	: QMainWindow(parent)
40	{
41	settings = new QSettings(QSettings::IniFormat, QSettings::UserScope, "TSPSG", "tspsg", this);
42
43	if (settings->contains("Style")) {
44	QStyle *s = QStyleFactory::create(settings->value("Style").toString());
45	if (s != NULL)
46	QApplication::setStyle(s);
47	else
48	settings->remove("Style");
49	}
50
51	loadLanguage();
52	setupUi();
53	setAcceptDrops(true);
54
55	initDocStyleSheet();
56
57	#ifndef QT_NO_PRINTER
58	printer = new QPrinter(QPrinter::HighResolution);
59	#endif // QT_NO_PRINTER
60
61	#ifdef Q_OS_WINCE_WM
62	currentGeometry = QApplication::desktop()->availableGeometry(0);
63	// We need to react to SIP show/hide and resize the window appropriately
64	connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), SLOT(desktopResized(int)));
65	#endif // Q_OS_WINCE_WM
66	connect(actionFileNew, SIGNAL(triggered()), SLOT(actionFileNewTriggered()));
67	connect(actionFileOpen, SIGNAL(triggered()), SLOT(actionFileOpenTriggered()));
68	connect(actionFileSave, SIGNAL(triggered()), SLOT(actionFileSaveTriggered()));
69	connect(actionFileSaveAsTask, SIGNAL(triggered()), SLOT(actionFileSaveAsTaskTriggered()));
70	connect(actionFileSaveAsSolution, SIGNAL(triggered()), SLOT(actionFileSaveAsSolutionTriggered()));
71	#ifndef QT_NO_PRINTER
72	connect(actionFilePrintPreview, SIGNAL(triggered()), SLOT(actionFilePrintPreviewTriggered()));
73	connect(actionFilePrint, SIGNAL(triggered()), SLOT(actionFilePrintTriggered()));
74	#endif // QT_NO_PRINTER
75	#ifndef HANDHELD
76	connect(actionSettingsToolbarsConfigure, SIGNAL(triggered()), SLOT(actionSettingsToolbarsConfigureTriggered()));
77	#endif // HANDHELD
78	connect(actionSettingsPreferences, SIGNAL(triggered()), SLOT(actionSettingsPreferencesTriggered()));
79	#ifdef Q_OS_WIN32
80	connect(actionHelpCheck4Updates, SIGNAL(triggered()), SLOT(actionHelpCheck4UpdatesTriggered()));
81	#endif // Q_OS_WIN32
82	connect(actionSettingsLanguageAutodetect, SIGNAL(triggered(bool)), SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
83	connect(groupSettingsLanguageList, SIGNAL(triggered(QAction )), SLOT(groupSettingsLanguageListTriggered(QAction )));
84	connect(actionSettingsStyleSystem, SIGNAL(triggered(bool)), SLOT(actionSettingsStyleSystemTriggered(bool)));
85	connect(groupSettingsStyleList, SIGNAL(triggered(QAction)), SLOT(groupSettingsStyleListTriggered(QAction)));
86	connect(actionHelpAboutQt, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
87	connect(actionHelpAbout, SIGNAL(triggered()), SLOT(actionHelpAboutTriggered()));
88
89	connect(buttonSolve, SIGNAL(clicked()), SLOT(buttonSolveClicked()));
90	connect(buttonRandom, SIGNAL(clicked()), SLOT(buttonRandomClicked()));
91	connect(buttonBackToTask, SIGNAL(clicked()), SLOT(buttonBackToTaskClicked()));
92	connect(spinCities, SIGNAL(valueChanged(int)), SLOT(spinCitiesValueChanged(int)));
93
94	#ifndef HANDHELD
95	// Centering main window
96	QRect rect = geometry();
97	rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
98	setGeometry(rect);
99	if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
100	// Loading of saved window state
101	settings->beginGroup("MainWindow");
102	restoreGeometry(settings->value("Geometry").toByteArray());
103	restoreState(settings->value("State").toByteArray());
104	settings->endGroup();
105	}
106	#endif // HANDHELD
107
108	tspmodel = new CTSPModel(this);
109	taskView->setModel(tspmodel);
110	connect(tspmodel, SIGNAL(numCitiesChanged(int)), SLOT(numCitiesChanged(int)));
111	connect(tspmodel, SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)), SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
112	connect(tspmodel, SIGNAL(layoutChanged()), SLOT(dataChanged()));
113	if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
114	setFileName(QCoreApplication::arguments().at(1));
115	else {
116	setFileName();
117	spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
118	spinCitiesValueChanged(spinCities->value());
119	}
120	setWindowModified(false);
121	}
122
123	MainWindow::~MainWindow()
124	{
125	#ifndef QT_NO_PRINTER
126	delete printer;
127	#endif
128	}
129
130	/* Privates **********************************************************/
131
132	void MainWindow::actionFileNewTriggered()
133	{
134	if (!maybeSave())
135	return;
136	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
137	tspmodel->clear();
138	setFileName();
139	setWindowModified(false);
140	tabWidget->setCurrentIndex(0);
141	solutionText->clear();
142	toggleSolutionActions(false);
143	QApplication::restoreOverrideCursor();
144	}
145
146	void MainWindow::actionFileOpenTriggered()
147	{
148	if (!maybeSave())
149	return;
150
151	QStringList filters(tr("All Supported Formats") + " (.tspt .zkt)");
152	filters.append(tr("%1 Task Files").arg("TSPSG") + " (*.tspt)");
153	filters.append(tr("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
154	filters.append(tr("All Files") + " (*)");
155
156	QString file = QFileInfo(fileName).canonicalPath();
157	QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
158	file = QFileDialog::getOpenFileName(this, tr("Task Load"), file, filters.join(";;"), NULL, opts);
159	if (file.isEmpty() \|\| !QFileInfo(file).isFile())
160	return;
161	if (!tspmodel->loadTask(file))
162	return;
163	setFileName(file);
164	tabWidget->setCurrentIndex(0);
165	setWindowModified(false);
166	solutionText->clear();
167	toggleSolutionActions(false);
168	}
169
170	bool MainWindow::actionFileSaveTriggered()
171	{
172	if ((fileName == tr("Untitled") + ".tspt") \|\| (!fileName.endsWith(".tspt", Qt::CaseInsensitive)))
173	return saveTask();
174	else
175	if (tspmodel->saveTask(fileName)) {
176	setWindowModified(false);
177	return true;
178	} else
179	return false;
180	}
181
182	void MainWindow::actionFileSaveAsTaskTriggered()
183	{
184	saveTask();
185	}
186
187	void MainWindow::actionFileSaveAsSolutionTriggered()
188	{
189	static QString selectedFile;
190	if (selectedFile.isEmpty())
191	selectedFile = QFileInfo(fileName).canonicalPath();
192	else
193	selectedFile = QFileInfo(selectedFile).canonicalPath();
194	if (!selectedFile.isEmpty())
195	selectedFile += "/";
196	if (fileName == tr("Untitled") + ".tspt") {
197	#ifndef QT_NO_PRINTER
198	selectedFile += "solution.pdf";
199	#else
200	selectedFile += "solution.html";
201	#endif // QT_NO_PRINTER
202	} else {
203	#ifndef QT_NO_PRINTER
204	selectedFile += QFileInfo(fileName).completeBaseName() + ".pdf";
205	#else
206	selectedFile += QFileInfo(fileName).completeBaseName() + ".html";
207	#endif // QT_NO_PRINTER
208	}
209
210	QStringList filters;
211	#ifndef QT_NO_PRINTER
212	filters.append(tr("PDF Files") + " (*.pdf)");
213	#endif
214	filters.append(tr("HTML Files") + " (.html .htm)");
215	#if QT_VERSION >= 0x040500
216	filters.append(tr("OpenDocument Files") + " (*.odt)");
217	#endif // QT_VERSION >= 0x040500
218	filters.append(tr("All Files") + " (*)");
219
220	QFileDialog::Options opts(settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog);
221	QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, opts);
222	if (file.isEmpty())
223	return;
224	selectedFile = file;
225	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
226	#ifndef QT_NO_PRINTER
227	if (selectedFile.endsWith(".pdf",Qt::CaseInsensitive)) {
228	QPrinter printer(QPrinter::HighResolution);
229	printer.setOutputFormat(QPrinter::PdfFormat);
230	printer.setOutputFileName(selectedFile);
231	solutionText->document()->print(&printer);
232	QApplication::restoreOverrideCursor();
233	return;
234	}
235	#endif
236	if (selectedFile.endsWith(".htm", Qt::CaseInsensitive) \|\| selectedFile.endsWith(".html", Qt::CaseInsensitive)) {
237	QFile file(selectedFile);
238	if (!file.open(QFile::WriteOnly)) {
239	QApplication::restoreOverrideCursor();
240	QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(file.errorString()));
241	return;
242	}
243	QFileInfo fi(selectedFile);
244	QString format = settings->value("Output/GraphImageFormat", DEF_GRAPH_IMAGE_FORMAT).toString();
245	#if !defined(NOSVG) && (QT_VERSION >= 0x040500)
246	if (!QImageWriter::supportedImageFormats().contains(format.toAscii()) && (format != "svg")) {
247	#else // NOSVG && QT_VERSION >= 0x040500
248	if (!QImageWriter::supportedImageFormats().contains(format.toAscii())) {
249	#endif // NOSVG && QT_VERSION >= 0x040500
250	format = DEF_GRAPH_IMAGE_FORMAT;
251	settings->remove("Output/GraphImageFormat");
252	}
253	QString html = solutionText->document()->toHtml("UTF-8"),
254	img = fi.completeBaseName() + "." + format;
255	html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""), QString("<img src=\"%1\" width=\"%2\" height=\"%3\" alt=\"%4\"").arg(img).arg(graph.width() + 2).arg(graph.height() + 2).arg(tr("Solution Graph")));
256
257	// Saving solution text as HTML
258	QTextStream ts(&file);
259	ts.setCodec(QTextCodec::codecForName("UTF-8"));
260	ts << html;
261	file.close();
262
263	// Saving solution graph as SVG or PNG (depending on settings and SVG support)
264	#if !defined(NOSVG) && (QT_VERSION >= 0x040500)
265	if (format == "svg") {
266	QSvgGenerator svg;
267	svg.setSize(QSize(graph.width(), graph.height()));
268	svg.setResolution(graph.logicalDpiX());
269	svg.setFileName(fi.path() + "/" + img);
270	svg.setTitle(tr("Solution Graph"));
271	svg.setDescription(tr("Generated with %1").arg(QApplication::applicationName()));
272	QPainter p;
273	p.begin(&svg);
274	p.drawPicture(1, 1, graph);
275	p.end();
276	} else {
277	#endif // NOSVG && QT_VERSION >= 0x040500
278	QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
279	i.fill(0x00FFFFFF);
280	QPainter p;
281	p.begin(&i);
282	p.drawPicture(1, 1, graph);
283	p.end();
284	QImageWriter pic(fi.path() + "/" + img);
285	if (pic.supportsOption(QImageIOHandler::Description)) {
286	pic.setText("Title", "Solution Graph");
287	pic.setText("Software", QApplication::applicationName());
288	}
289	if (format == "png")
290	pic.setQuality(5);
291	else if (format == "jpeg")
292	pic.setQuality(80);
293	if (!pic.write(i)) {
294	QApplication::restoreOverrideCursor();
295	QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(pic.errorString()));
296	return;
297	}
298	#if !defined(NOSVG) && (QT_VERSION >= 0x040500)
299	}
300	#endif // NOSVG && QT_VERSION >= 0x040500
301
302	// Qt < 4.5 has no QTextDocumentWriter class
303	#if QT_VERSION >= 0x040500
304	} else {
305	QTextDocumentWriter dw(selectedFile);
306	if (!selectedFile.endsWith(".odt",Qt::CaseInsensitive))
307	dw.setFormat("plaintext");
308	if (!dw.write(solutionText->document()))
309	QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(dw.device()->errorString()));
310	#endif // QT_VERSION >= 0x040500
311	}
312	QApplication::restoreOverrideCursor();
313	}
314
315	#ifndef QT_NO_PRINTER
316	void MainWindow::actionFilePrintPreviewTriggered()
317	{
318	QPrintPreviewDialog ppd(printer, this);
319	connect(&ppd,SIGNAL(paintRequested(QPrinter )),SLOT(printPreview(QPrinter )));
320	ppd.exec();
321	}
322
323	void MainWindow::actionFilePrintTriggered()
324	{
325	QPrintDialog pd(printer,this);
326	if (pd.exec() != QDialog::Accepted)
327	return;
328	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
329	solutionText->print(printer);
330	QApplication::restoreOverrideCursor();
331	}
332	#endif // QT_NO_PRINTER
333
334	void MainWindow::actionSettingsPreferencesTriggered()
335	{
336	SettingsDialog sd(this);
337	if (sd.exec() != QDialog::Accepted)
338	return;
339	if (sd.colorChanged() \|\| sd.fontChanged()) {
340	if (!solutionText->document()->isEmpty() && sd.colorChanged())
341	QMessageBox::information(this, tr("Settings Changed"), tr("You have changed color settings.\nThey will be applied to the next solution output."));
342	initDocStyleSheet();
343	}
344	if (sd.translucencyChanged() != 0)
345	toggleTranclucency(sd.translucencyChanged() == 1);
346	}
347
348	void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
349	{
350	if (checked) {
351	settings->remove("Language");
352	QMessageBox::information(this, tr("Language change"), tr("Language will be autodetected on the next %1 start.").arg(QApplication::applicationName()));
353	} else
354	settings->setValue("Language", groupSettingsLanguageList->checkedAction()->data().toString());
355	}
356
357	void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
358	{
359	if (actionSettingsLanguageAutodetect->isChecked()) {
360	// We have language autodetection. It needs to be disabled to change language.
361	if (QMessageBox::question(this, tr("Language change"), tr("You have language autodetection turned on.\nIt needs to be off.\nDo you wish to turn it off?"), QMessageBox::Yes \| QMessageBox::No) == QMessageBox::Yes) {
362	actionSettingsLanguageAutodetect->trigger();
363	} else
364	return;
365	}
366	bool untitled = (fileName == tr("Untitled") + ".tspt");
367	if (loadLanguage(action->data().toString())) {
368	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
369	settings->setValue("Language",action->data().toString());
370	retranslateUi();
371	if (untitled)
372	setFileName();
373	#ifdef Q_OS_WIN32
374	if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool()) {
375	toggleStyle(labelVariant, true);
376	toggleStyle(labelCities, true);
377	}
378	#endif
379	QApplication::restoreOverrideCursor();
380	if (!solutionText->document()->isEmpty())
381	QMessageBox::information(this, tr("Settings Changed"), tr("You have changed the application language.\nTo get current solution output in the new language\nyou need to re-run the solution process."));
382	}
383	}
384
385	void MainWindow::actionSettingsStyleSystemTriggered(bool checked)
386	{
387	if (checked) {
388	settings->remove("Style");
389	QMessageBox::information(this, tr("Style Change"), tr("To apply the default style you need to restart %1.").arg(QApplication::applicationName()));
390	} else {
391	settings->setValue("Style", groupSettingsStyleList->checkedAction()->text());
392	}
393	}
394
395	void MainWindow::groupSettingsStyleListTriggered(QAction *action)
396	{
397	QStyle *s = QStyleFactory::create(action->text());
398	if (s != NULL) {
399	QApplication::setStyle(s);
400	settings->setValue("Style", action->text());
401	actionSettingsStyleSystem->setChecked(false);
402	}
403	}
404
405	#ifndef HANDHELD
406	void MainWindow::actionSettingsToolbarsConfigureTriggered()
407	{
408	QtToolBarDialog dlg(this);
409	dlg.setToolBarManager(toolBarManager);
410	dlg.exec();
411	QToolButton tb = static_cast<QToolButton >(toolBarMain->widgetForAction(actionFileSave));
412	if (tb != NULL) {
413	tb->setMenu(menuFileSaveAs);
414	tb->setPopupMode(QToolButton::MenuButtonPopup);
415	tb->resize(tb->sizeHint());
416	}
417
418	loadToolbarList();
419	}
420	#endif // HANDHELD
421
422	#ifdef Q_OS_WIN32
423	void MainWindow::actionHelpCheck4UpdatesTriggered()
424	{
425	if (!hasUpdater()) {
426	QMessageBox::warning(this, tr("Unsupported Feature"), tr("Sorry, but this feature is not supported on your platform\nor support for this feature was not installed."));
427	return;
428	}
429
430	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
431	QProcess::execute("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\"");
432	QApplication::restoreOverrideCursor();
433	}
434	#endif // Q_OS_WIN32
435
436	void MainWindow::actionHelpAboutTriggered()
437	{
438	QString title;
439	#ifdef HANDHELD
440	title += QString("<b>TSPSG<br>TSP Solver and Generator</b><br>");
441	#else
442	title += QString("<b>%1</b><br>").arg(QApplication::applicationName());
443	#endif // HANDHELD
444	title += QString("%1: <b>%2</b><br>").arg(tr("Version"), QApplication::applicationVersion());
445	#ifndef HANDHELD
446	title += QString("<b>© 2007-%1 <a href=\"http://%2/\">%3</a></b><br>").arg(QDate::currentDate().toString("yyyy"), QApplication::organizationDomain(), QApplication::organizationName());
447	title += QString("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sourceforge.net/</a></b>");
448	#else
449	title += QString("<b><a href=\"http://tspsg.sourceforge.net/\">http://tspsg.sf.net/</a></b>");
450	#endif // HANDHELD
451
452	QString about;
453	about += QString("%1: <b>%2</b><br>").arg(tr("Target OS (ARCH)"), OS);
454	#ifndef STATIC_BUILD
455	about += QString("%1 (%2):<br>").arg(tr("Qt library"), tr("shared"));
456	about += QString("    %1: <b>%2</b><br>").arg(tr("Build time"), QT_VERSION_STR);
457	about += QString("    %1: <b>%2</b><br>").arg(tr("Runtime"), qVersion());
458	#else
459	about += QString("%1: <b>%2</b> (%3)<br>").arg(tr("Qt library"), QT_VERSION_STR, tr("static"));
460	#endif // STATIC_BUILD
461	about += tr("Buid <b>%1</b>, built on <b>%2</b> at <b>%3</b>").arg(BUILD_NUMBER).arg(__DATE__).arg(__TIME__) + "<br>";
462	about += QString("%1: <b>%2</b><br>").arg(tr("Algorithm"), CTSPSolver::getVersionId());
463	about += "<br>";
464	about += tr("TSPSG is free software: you can redistribute it and/or modify it<br>"
465	"under the terms of the GNU General Public License as published<br>"
466	"by the Free Software Foundation, either version 3 of the License,<br>"
467	"or (at your option) any later version.<br>"
468	"<br>"
469	"TSPSG is distributed in the hope that it will be useful, but<br>"
470	"WITHOUT ANY WARRANTY; without even the implied warranty of<br>"
471	"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>"
472	"GNU General Public License for more details.<br>"
473	"<br>"
474	"You should have received a copy of the GNU General Public License<br>"
475	"along with TSPSG. If not, see <a href=\"http://www.gnu.org/licenses/\">http://www.gnu.org/licenses/</a>.");
476
477	QDialog *dlg = new QDialog(this);
478	QLabel *lblIcon = new QLabel(dlg),
479	*lblTitle = new QLabel(dlg),
480	*lblTranslated = new QLabel(dlg);
481	#ifdef HANDHELD
482	QLabel *lblSubTitle = new QLabel(QString("<b>© 2007-%1 <a href=\"http://%2/\">%3</a></b>").arg(QDate::currentDate().toString("yyyy"), QApplication::organizationDomain(), QApplication::organizationName()), dlg);
483	#endif // HANDHELD
484	QTextBrowser *txtAbout = new QTextBrowser(dlg);
485	QVBoxLayout *vb = new QVBoxLayout();
486	QHBoxLayout *hb1 = new QHBoxLayout(),
487	*hb2 = new QHBoxLayout();
488	QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok, Qt::Horizontal, dlg);
489
490	lblTitle->setOpenExternalLinks(true);
491	lblTitle->setText(title);
492	lblTitle->setAlignment(Qt::AlignTop);
493	lblTitle->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
494	#ifndef HANDHELD
495	lblTitle->setStyleSheet(QString("QLabel {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 4px; padding: 1px;}").arg(palette().alternateBase().color().name(), palette().shadow().color().name()));
496	#endif // HANDHELD
497
498	lblIcon->setPixmap(QPixmap(":/images/tspsg.png").scaledToHeight(lblTitle->sizeHint().height(), Qt::SmoothTransformation));
499	lblIcon->setAlignment(Qt::AlignVCenter);
500	#ifndef HANDHELD
501	lblIcon->setStyleSheet(QString("QLabel {background-color: white; border-color: %1; border-width: 1px; border-style: solid; border-radius: 4px; padding: 1px;}").arg(palette().windowText().color().name()));
502	#endif // HANDHELD
503
504	hb1->addWidget(lblIcon);
505	hb1->addWidget(lblTitle);
506
507	txtAbout->setWordWrapMode(QTextOption::NoWrap);
508	txtAbout->setOpenExternalLinks(true);
509	txtAbout->setHtml(about);
510	txtAbout->moveCursor(QTextCursor::Start);
511	#ifndef HANDHELD
512	txtAbout->setStyleSheet(QString("QTextBrowser {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 4px; padding: 1px;}").arg(palette().base().color().name(), palette().shadow().color().name()));
513	#endif // HANDHELD
514
515	bb->button(QDialogButtonBox::Ok)->setCursor(QCursor(Qt::PointingHandCursor));
516
517	lblTranslated->setText(QApplication::translate("--------", "AUTHORS", "Please, provide translator credits here."));
518	if (lblTranslated->text() == "AUTHORS")
519	lblTranslated->hide();
520	else {
521	lblTranslated->setOpenExternalLinks(true);
522	#ifndef HANDHELD
523	lblTranslated->setStyleSheet(QString("QLabel {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 3px; padding: 1px;}").arg(palette().alternateBase().color().name(), palette().shadow().color().name()));
524	#endif // HANDHELD
525	hb2->addWidget(lblTranslated);
526	}
527
528	// This one isn't displayed anywhere, yet. Provided as a placeholder for future use.
529	QApplication::translate("--------", "VERSION", "Please, provide your translation version here.");
530
531	hb2->addWidget(bb);
532
533	#ifdef Q_OS_WINCE_WM
534	vb->setMargin(3);
535	#endif // Q_OS_WINCE_WM
536	vb->addLayout(hb1);
537	#ifdef HANDHELD
538	vb->addWidget(lblSubTitle);
539	#endif // HANDHELD
540	vb->addWidget(txtAbout);
541	vb->addLayout(hb2);
542
543	dlg->setWindowFlags(Qt::Dialog \| Qt::CustomizeWindowHint \| Qt::WindowTitleHint \| Qt::WindowCloseButtonHint);
544	dlg->setWindowTitle(tr("About %1").arg(QApplication::applicationName()));
545	dlg->setWindowIcon(QIcon::fromTheme("help-about", QIcon(":/images/icons/help-about.png")));
546	dlg->setLayout(vb);
547
548	connect(bb, SIGNAL(accepted()), dlg, SLOT(accept()));
549
550	#ifdef Q_OS_WIN32
551	// Adding some eyecandy in Vista and 7 :-)
552	if (QtWin::isCompositionEnabled()) {
553	QtWin::enableBlurBehindWindow(dlg, true);
554	}
555	#endif // Q_OS_WIN32
556
557	dlg->resize(450, 350);
558
559	dlg->exec();
560
561	delete dlg;
562	}
563
564	void MainWindow::buttonBackToTaskClicked()
565	{
566	tabWidget->setCurrentIndex(0);
567	}
568
569	void MainWindow::buttonRandomClicked()
570	{
571	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
572	tspmodel->randomize();
573	QApplication::restoreOverrideCursor();
574	}
575
576	void MainWindow::buttonSolveClicked()
577	{
578	TMatrix matrix;
579	QList<double> row;
580	int n = spinCities->value();
581	bool ok;
582	for (int r = 0; r < n; r++) {
583	row.clear();
584	for (int c = 0; c < n; c++) {
585	row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
586	if (!ok) {
587	QMessageBox::critical(this, tr("Data error"), tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1));
588	return;
589	}
590	}
591	matrix.append(row);
592	}
593
594	QProgressDialog pd(this);
595	QProgressBar *pb = new QProgressBar(&pd);
596	pb->setAlignment(Qt::AlignCenter);
597	pb->setFormat(tr("%v of %1 parts found").arg(n));
598	pd.setBar(pb);
599	pd.setMaximum(n);
600	pd.setAutoReset(false);
601	pd.setLabelText(tr("Calculating optimal route..."));
602	pd.setWindowTitle(tr("Solution Progress"));
603	pd.setWindowModality(Qt::ApplicationModal);
604	pd.setWindowFlags(Qt::Dialog \| Qt::CustomizeWindowHint \| Qt::WindowTitleHint);
605	pd.show();
606
607	CTSPSolver solver;
608	connect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
609	connect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
610	SStep *root = solver.solve(n, matrix);
611	disconnect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
612	disconnect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
613	if (!root) {
614	pd.reset();
615	if (!solver.wasCanceled())
616	QMessageBox::warning(this, tr("Solution Result"), tr("Unable to find a solution.\nMaybe, this task has no solution."));
617	return;
618	}
619	pb->setFormat(tr("Generating header"));
620	pd.setLabelText(tr("Generating solution output..."));
621	pd.setMaximum(solver.getTotalSteps() + 1);
622	pd.setValue(0);
623
624	solutionText->clear();
625	solutionText->setDocumentTitle(tr("Solution of Variant #%1 Task").arg(spinVariant->value()));
626
627	QPainter pic;
628	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool()) {
629	pic.begin(&graph);
630	pic.setRenderHint(QPainter::Antialiasing);
631	pic.setFont(settings->value("Output/Font", QFont(getDefaultFont(), 9)).value<QFont>());
632	pic.setBrush(QBrush(QColor(Qt::white)));
633	pic.setBackgroundMode(Qt::OpaqueMode);
634	}
635
636	QTextDocument *doc = solutionText->document();
637	QTextCursor cur(doc);
638
639	cur.beginEditBlock();
640	cur.setBlockFormat(fmt_paragraph);
641	cur.insertText(tr("Variant #%1 Task").arg(spinVariant->value()), fmt_default);
642	cur.insertBlock(fmt_paragraph);
643	cur.insertText(tr("Task:"));
644	outputMatrix(cur, matrix);
645	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool()) {
646	#ifdef _T_T_L_
647	_b_ _i_ _z_ _a_ _r_ _r_ _e_
648	#endif
649	drawNode(pic, 0);
650	}
651	cur.insertHtml("<hr>");
652	cur.insertBlock(fmt_paragraph);
653	int imgpos = cur.position();
654	cur.insertText(tr("Variant #%1 Solution").arg(spinVariant->value()), fmt_default);
655	cur.endEditBlock();
656
657	SStep *step = root;
658	int c = n = 1;
659	pb->setFormat(tr("Generating step %v"));
660	while ((step->next != SStep::NoNextStep) && (c < spinCities->value())) {
661	if (pd.wasCanceled()) {
662	pd.setLabelText(tr("Cleaning up..."));
663	pd.setMaximum(0);
664	pd.setCancelButton(NULL);
665	pd.show();
666	QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
667	solver.cleanup(true);
668	solutionText->clear();
669	toggleSolutionActions(false);
670	return;
671	}
672	pd.setValue(n);
673
674	cur.beginEditBlock();
675	cur.insertBlock(fmt_paragraph);
676	cur.insertText(tr("Step #%1").arg(n));
677	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())))) {
678	outputMatrix(cur, *step);
679	}
680	cur.insertBlock(fmt_paragraph);
681	cur.insertText(tr("Selected route %1 %2 part.").arg((step->next == SStep::RightBranch) ? tr("with") : tr("without")).arg(tr("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)), fmt_default);
682	if (!step->alts.empty()) {
683	SStep::SCandidate cand;
684	QString alts;
685	foreach(cand, step->alts) {
686	if (!alts.isEmpty())
687	alts += ", ";
688	alts += tr("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
689	}
690	cur.insertBlock(fmt_paragraph);
691	cur.insertText(tr("%n alternate candidate(s) for branching: %1.", "", step->alts.count()).arg(alts), fmt_altlist);
692	}
693	cur.insertBlock(fmt_paragraph);
694	cur.insertText(" ", fmt_default);
695	cur.endEditBlock();
696
697	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool()) {
698	if (step->prNode != NULL)
699	drawNode(pic, n, false, step->prNode);
700	if (step->plNode != NULL)
701	drawNode(pic, n, true, step->plNode);
702	}
703	n++;
704
705	if (step->next == SStep::RightBranch) {
706	c++;
707	step = step->prNode;
708	} else if (step->next == SStep::LeftBranch) {
709	step = step->plNode;
710	} else
711	break;
712	}
713	pb->setFormat(tr("Generating footer"));
714	pd.setValue(n);
715
716	cur.beginEditBlock();
717	cur.insertBlock(fmt_paragraph);
718	if (solver.isOptimal())
719	cur.insertText(tr("Optimal path:"));
720	else
721	cur.insertText(tr("Resulting path:"));
722
723	cur.insertBlock(fmt_paragraph);
724	cur.insertText(" " + solver.getSortedPath(tr("City %1")));
725
726	cur.insertBlock(fmt_paragraph);
727	if (isInteger(step->price))
728	cur.insertHtml("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
729	else
730	cur.insertHtml("<p>" + tr("The price is <b>%1</b> units.").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()) + "</p>");
731	if (!solver.isOptimal()) {
732	cur.insertBlock(fmt_paragraph);
733	cur.insertText(" ");
734	cur.insertBlock(fmt_paragraph);
735	cur.insertHtml("<p>" + tr("<b>WARNING!!!</b><br>This result is a record, but it may not be optimal.<br>Iterations need to be continued to check whether this result is optimal or get an optimal one.") + "</p>");
736	}
737	cur.endEditBlock();
738
739	if (settings->value("Output/ShowGraph", DEF_SHOW_GRAPH).toBool()) {
740	pic.end();
741
742	QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
743	i.fill(0);
744	pic.begin(&i);
745	pic.drawPicture(1, 1, graph);
746	pic.end();
747	doc->addResource(QTextDocument::ImageResource, QUrl("tspsg://graph.pic"), i);
748
749	QTextImageFormat img;
750	img.setName("tspsg://graph.pic");
751
752	cur.setPosition(imgpos);
753	cur.insertImage(img, QTextFrameFormat::FloatRight);
754	}
755
756	if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
757	// Scrolling to the end of the text.
758	solutionText->moveCursor(QTextCursor::End);
759	} else
760	solutionText->moveCursor(QTextCursor::Start);
761
762	pd.setLabelText(tr("Cleaning up..."));
763	pd.setMaximum(0);
764	pd.setCancelButton(NULL);
765	QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
766	solver.cleanup(true);
767	toggleSolutionActions();
768	tabWidget->setCurrentIndex(1);
769	}
770
771	void MainWindow::dataChanged()
772	{
773	setWindowModified(true);
774	}
775
776	void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
777	{
778	setWindowModified(true);
779	if (settings->value("Autosize", DEF_AUTOSIZE).toBool()) {
780	for (int k = tl.row(); k <= br.row(); k++)
781	taskView->resizeRowToContents(k);
782	for (int k = tl.column(); k <= br.column(); k++)
783	taskView->resizeColumnToContents(k);
784	}
785	}
786
787	#ifdef Q_OS_WINCE_WM
788	void MainWindow::changeEvent(QEvent *ev)
789	{
790	if ((ev->type() == QEvent::ActivationChange) && isActiveWindow())
791	desktopResized(0);
792
793	QWidget::changeEvent(ev);
794	}
795
796	void MainWindow::desktopResized(int screen)
797	{
798	if ((screen != 0) \|\| !isActiveWindow())
799	return;
800
801	QRect availableGeometry = QApplication::desktop()->availableGeometry(0);
802	if (currentGeometry != availableGeometry) {
803	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
804	/*!
805	* \hack HACK: This hack checks whether \link QDesktopWidget::availableGeometry() availableGeometry()\endlink's \c top + \c hegiht = \link QDesktopWidget::screenGeometry() screenGeometry()\endlink's \c height.
806	* If \c true, the window gets maximized. If we used \c setGeometry() in this case, the bottom of the
807	* window would end up being behind the soft buttons. Is this a bug in Qt or Windows Mobile?
808	*/
809	if ((availableGeometry.top() + availableGeometry.height()) == QApplication::desktop()->screenGeometry().height()) {
810	setWindowState(windowState() \| Qt::WindowMaximized);
811	} else {
812	if (windowState() & Qt::WindowMaximized)
813	setWindowState(windowState() ^ Qt::WindowMaximized);
814	setGeometry(availableGeometry);
815	}
816	currentGeometry = availableGeometry;
817	QApplication::restoreOverrideCursor();
818	}
819	}
820	#endif // Q_OS_WINCE_WM
821
822	void MainWindow::numCitiesChanged(int nCities)
823	{
824	blockSignals(true);
825	spinCities->setValue(nCities);
826	blockSignals(false);
827	}
828
829	#ifndef QT_NO_PRINTER
830	void MainWindow::printPreview(QPrinter *printer)
831	{
832	solutionText->print(printer);
833	}
834	#endif // QT_NO_PRINTER
835
836	void MainWindow::spinCitiesValueChanged(int n)
837	{
838	QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
839	int count = tspmodel->numCities();
840	tspmodel->setNumCities(n);
841	if ((n > count) && settings->value("Autosize", DEF_AUTOSIZE).toBool())
842	for (int k = count; k < n; k++) {
843	taskView->resizeColumnToContents(k);
844	taskView->resizeRowToContents(k);
845	}
846	QApplication::restoreOverrideCursor();
847	}
848
849	void MainWindow::closeEvent(QCloseEvent *ev)
850	{
851	if (!maybeSave()) {
852	ev->ignore();
853	return;
854	}
855	if (!settings->value("SettingsReset", false).toBool()) {
856	settings->setValue("NumCities", spinCities->value());
857
858	// Saving Main Window state
859	#ifndef HANDHELD
860	if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
861	settings->beginGroup("MainWindow");
862	settings->setValue("Geometry", saveGeometry());
863	settings->setValue("State", saveState());
864	settings->setValue("Toolbars", toolBarManager->saveState());
865	settings->endGroup();
866	}
867	#endif // HANDHELD
868	} else {
869	settings->remove("SettingsReset");
870	}
871
872	QMainWindow::closeEvent(ev);
873	}
874
875	void MainWindow::dragEnterEvent(QDragEnterEvent *ev)
876	{
877	if (ev->mimeData()->hasUrls() && (ev->mimeData()->urls().count() == 1)) {
878	QFileInfo fi(ev->mimeData()->urls().first().toLocalFile());
879	if ((fi.suffix() == "tspt") \|\| (fi.suffix() == "zkt"))
880	ev->acceptProposedAction();
881	}
882	}
883
884	void MainWindow::drawNode(QPainter &pic, int nstep, bool left, SStep *step)
885	{
886	const int r = 35;
887	qreal x, y;
888	if (step != NULL)
889	x = left ? r : r * 3.5;
890	else
891	x = r * 2.25;
892	y = r * (3 * nstep + 1);
893
894	#ifdef _T_T_L_
895	if (nstep == -481124) {
896	_t_t_l_(pic, r, x);
897	return;
898	}
899	#endif
900
901	pic.drawEllipse(QPointF(x, y), r, r);
902
903	if (step != NULL) {
904	QFont font;
905	if (left) {
906	font = pic.font();
907	font.setStrikeOut(true);
908	pic.setFont(font);
909	}
910	pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("(%1;%2)").arg(step->pNode->candidate.nRow + 1).arg(step->pNode->candidate.nCol + 1) + "\n");
911	if (left) {
912	font.setStrikeOut(false);
913	pic.setFont(font);
914	}
915	if (step->price != INFINITY) {
916	pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, isInteger(step->price) ? QString("\n%1").arg(step->price) : QString("\n%1").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()));
917	} else {
918	pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, "\n"INFSTR);
919	}
920	} else {
921	pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("Root"));
922	}
923
924	if (nstep == 1) {
925	pic.drawLine(QPointF(x, y - r), QPointF(r * 2.25, y - 2 * r));
926	} else if (nstep > 1) {
927	pic.drawLine(QPointF(x, y - r), QPointF((step->pNode->pNode->next == SStep::RightBranch) ? r * 3.5 : r, y - 2 * r));
928	}
929
930	}
931
932	void MainWindow::dropEvent(QDropEvent *ev)
933	{
934	if (maybeSave() && tspmodel->loadTask(ev->mimeData()->urls().first().toLocalFile())) {
935	setFileName(ev->mimeData()->urls().first().toLocalFile());
936	tabWidget->setCurrentIndex(0);
937	setWindowModified(false);
938	solutionText->clear();
939	toggleSolutionActions(false);
940
941	ev->setDropAction(Qt::CopyAction);
942	ev->accept();
943	}
944	}
945
946	bool MainWindow::hasUpdater() const
947	{
948	#ifdef Q_OS_WIN32
949	return QFile::exists("updater/Update.exe");
950	#else // Q_OS_WIN32
951	return false;
952	#endif // Q_OS_WIN32
953	}
954
955	void MainWindow::initDocStyleSheet()
956	{
957	solutionText->document()->setDefaultFont(settings->value("Output/Font", QFont(getDefaultFont(), DEF_FONT_SIZE)).value<QFont>());
958
959	fmt_paragraph.setTopMargin(0);
960	fmt_paragraph.setRightMargin(10);
961	fmt_paragraph.setBottomMargin(0);
962	fmt_paragraph.setLeftMargin(10);
963
964	fmt_table.setTopMargin(5);
965	fmt_table.setRightMargin(10);
966	fmt_table.setBottomMargin(5);
967	fmt_table.setLeftMargin(10);
968	fmt_table.setBorder(0);
969	fmt_table.setBorderStyle(QTextFrameFormat::BorderStyle_None);
970	fmt_table.setCellSpacing(5);
971
972	fmt_cell.setAlignment(Qt::AlignHCenter);
973
974	settings->beginGroup("Output/Colors");
975
976	QColor color = settings->value("Text", DEF_TEXT_COLOR).value<QColor>();
977	QColor hilight;
978	if (color.value() < 192)
979	hilight.setHsv(color.hue(), color.saturation(), 127 + qRound(color.value() / 2));
980	else
981	hilight.setHsv(color.hue(), color.saturation(), color.value() / 2);
982
983	solutionText->document()->setDefaultStyleSheet(QString("* {color: %1;}").arg(color.name()));
984	fmt_default.setForeground(QBrush(color));
985
986	fmt_selected.setForeground(QBrush(settings->value("Selected", DEF_SELECTED_COLOR).value<QColor>()));
987	fmt_selected.setFontWeight(QFont::Bold);
988
989	fmt_alternate.setForeground(QBrush(settings->value("Alternate", DEF_ALTERNATE_COLOR).value<QColor>()));
990	fmt_alternate.setFontWeight(QFont::Bold);
991	fmt_altlist.setForeground(QBrush(hilight));
992
993	settings->endGroup();
994
995	solutionText->setTextColor(color);
996	}
997
998	void MainWindow::loadLangList()
999	{
1000	QMap<QString, QStringList> langlist;
1001	QFileInfoList langs;
1002	QFileInfo lang;
1003	QString name;
1004	QStringList language, dirs;
1005	QTranslator t;
1006	QDir dir;
1007	dir.setFilter(QDir::Files);
1008	dir.setNameFilters(QStringList("tspsg_*.qm"));
1009	dir.setSorting(QDir::NoSort);
1010
1011	dirs << PATH_L10N << ":/l10n";
1012	foreach (QString dirname, dirs) {
1013	dir.setPath(dirname);
1014	if (dir.exists()) {
1015	langs = dir.entryInfoList();
1016	for (int k = 0; k < langs.size(); k++) {
1017	lang = langs.at(k);
1018	if (lang.completeBaseName().compare("tspsg_en", Qt::CaseInsensitive) && !langlist.contains(lang.completeBaseName().mid(6)) && t.load(lang.completeBaseName(), dirname)) {
1019
1020	language.clear();
1021	language.append(lang.completeBaseName().mid(6));
1022	language.append(t.translate("--------", "COUNTRY", "Please, provide an ISO 3166-1 alpha-2 country code for this translation language here (eg., UA).").toLower());
1023	language.append(t.translate("--------", "LANGNAME", "Please, provide a native name of your translation language here."));
1024	language.append(t.translate("MainWindow", "Set application language to %1", "").arg(name));
1025
1026	langlist.insert(language.at(0), language);
1027	}
1028	}
1029	}
1030	}
1031
1032	QAction *a;
1033	foreach (language, langlist) {
1034	a = menuSettingsLanguage->addAction(language.at(2));
1035	a->setStatusTip(language.at(3));
1036	a->setIcon(QIcon::fromTheme(QString("flag-%1").arg(language.at(1))/, QIcon(QString(":/images/icons/l10n/%1.png").arg(language.at(1)))/));
1037	a->setData(language.at(0));
1038	a->setCheckable(true);
1039	a->setActionGroup(groupSettingsLanguageList);
1040	if (settings->value("Language", QLocale::system().name()).toString().startsWith(language.at(0)))
1041	a->setChecked(true);
1042	}
1043	}
1044
1045	bool MainWindow::loadLanguage(const QString &lang)
1046	{
1047	// i18n
1048	bool ad = false;
1049	QString lng = lang;
1050	if (lng.isEmpty()) {
1051	ad = settings->value("Language", "").toString().isEmpty();
1052	lng = settings->value("Language", QLocale::system().name()).toString();
1053	}
1054	static QTranslator *qtTranslator; // Qt library translator
1055	if (qtTranslator) {
1056	qApp->removeTranslator(qtTranslator);
1057	delete qtTranslator;
1058	qtTranslator = NULL;
1059	}
1060	static QTranslator *translator; // Application translator
1061	if (translator) {
1062	qApp->removeTranslator(translator);
1063	delete translator;
1064	translator = NULL;
1065	}
1066
1067	if (lng == "en")
1068	return true;
1069
1070	// Trying to load system Qt library translation...
1071	qtTranslator = new QTranslator(this);
1072	if (qtTranslator->load("qt_" + lng, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
1073	qApp->installTranslator(qtTranslator);
1074	else {
1075	// No luck. Let's try to load a bundled one.
1076	if (qtTranslator->load("qt_" + lng, PATH_L10N)) {
1077	// We have a translation in the localization direcotry.
1078	qApp->installTranslator(qtTranslator);
1079	} else if (qtTranslator->load("qt_" + lng, ":/l10n")) {
1080	// We have a translation "built-in" into application resources.
1081	qApp->installTranslator(qtTranslator);
1082	} else {
1083	// Qt library translation unavailable for this language.
1084	delete qtTranslator;
1085	qtTranslator = NULL;
1086	}
1087	}
1088
1089	// Now let's load application translation.
1090	translator = new QTranslator(this);
1091	if (translator->load("tspsg_" + lng, PATH_L10N)) {
1092	// We have a translation in the localization directory.
1093	qApp->installTranslator(translator);
1094	} else if (translator->load("tspsg_" + lng, ":/l10n")) {
1095	// We have a translation "built-in" into application resources.
1096	qApp->installTranslator(translator);
1097	} else {
1098	delete translator;
1099	translator = NULL;
1100	if (!ad) {
1101	settings->remove("Language");
1102	QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
1103	QMessageBox::warning(isVisible() ? this : NULL, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
1104	QApplication::restoreOverrideCursor();
1105	}
1106	return false;
1107	}
1108	return true;
1109	}
1110
1111	void MainWindow::loadStyleList()
1112	{
1113	menuSettingsStyle->clear();
1114	QStringList styles = QStyleFactory::keys();
1115	menuSettingsStyle->insertAction(NULL, actionSettingsStyleSystem);
1116	actionSettingsStyleSystem->setChecked(!settings->contains("Style"));
1117	menuSettingsStyle->addSeparator();
1118	QAction *a;
1119	foreach (QString style, styles) {
1120	a = menuSettingsStyle->addAction(style);
1121	a->setData(false);
1122	a->setStatusTip(tr("Set application style to %1").arg(style));
1123	a->setCheckable(true);
1124	a->setActionGroup(groupSettingsStyleList);
1125	if ((style == settings->value("Style").toString())
1126	\|\| QString(QApplication::style()->metaObject()->className()).contains(QRegExp(QString("^Q?%1(Style)?$").arg(QRegExp::escape(style)), Qt::CaseInsensitive))) {
1127	a->setChecked(true);
1128	}
1129	}
1130	}
1131
1132	void MainWindow::loadToolbarList()
1133	{
1134	menuSettingsToolbars->clear();
1135	#ifndef HANDHELD
1136	menuSettingsToolbars->insertAction(NULL, actionSettingsToolbarsConfigure);
1137	menuSettingsToolbars->addSeparator();
1138	QList<QToolBar *> list = toolBarManager->toolBars();
1139	foreach (QToolBar *t, list) {
1140	menuSettingsToolbars->insertAction(NULL, t->toggleViewAction());
1141	}
1142	#else // HANDHELD
1143	menuSettingsToolbars->insertAction(NULL, toolBarMain->toggleViewAction());
1144	#endif // HANDHELD
1145	}
1146
1147	bool MainWindow::maybeSave()
1148	{
1149	if (!isWindowModified())
1150	return true;
1151	int res = QMessageBox::warning(this, tr("Unsaved Changes"), tr("Would you like to save changes in the current task?"), QMessageBox::Save \| QMessageBox::Discard \| QMessageBox::Cancel);
1152	if (res == QMessageBox::Save)
1153	return actionFileSaveTriggered();
1154	else if (res == QMessageBox::Cancel)
1155	return false;
1156	else
1157	return true;
1158	}
1159
1160	void MainWindow::outputMatrix(QTextCursor &cur, const TMatrix &matrix)
1161	{
1162	int n = spinCities->value();
1163	QTextTable *table = cur.insertTable(n, n, fmt_table);
1164
1165	for (int r = 0; r < n; r++) {
1166	for (int c = 0; c < n; c++) {
1167	cur = table->cellAt(r, c).firstCursorPosition();
1168	cur.setBlockFormat(fmt_cell);
1169	cur.setBlockCharFormat(fmt_default);
1170	if (matrix.at(r).at(c) == INFINITY)
1171	cur.insertText(INFSTR);
1172	else
1173	cur.insertText(isInteger(matrix.at(r).at(c)) ? QString("%1").arg(matrix.at(r).at(c)) : QString("%1").arg(matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()));
1174	}
1175	QApplication::processEvents();
1176	}
1177	cur.movePosition(QTextCursor::End);
1178	}
1179
1180	void MainWindow::outputMatrix(QTextCursor &cur, const SStep &step)
1181	{
1182	int n = spinCities->value();
1183	QTextTable *table = cur.insertTable(n, n, fmt_table);
1184
1185	for (int r = 0; r < n; r++) {
1186	for (int c = 0; c < n; c++) {
1187	cur = table->cellAt(r, c).firstCursorPosition();
1188	cur.setBlockFormat(fmt_cell);
1189	if (step.matrix.at(r).at(c) == INFINITY)
1190	cur.insertText(INFSTR, fmt_default);
1191	else if ((r == step.candidate.nRow) && (c == step.candidate.nCol))
1192	cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_selected);
1193	else {
1194	SStep::SCandidate cand;
1195	cand.nRow = r;
1196	cand.nCol = c;
1197	if (step.alts.contains(cand))
1198	cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_alternate);
1199	else
1200	cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_default);
1201	}
1202	}
1203	QApplication::processEvents();
1204	}
1205
1206	cur.movePosition(QTextCursor::End);
1207	}
1208
1209	void MainWindow::retranslateUi(bool all)
1210	{
1211	if (all)
1212	Ui::MainWindow::retranslateUi(this);
1213
1214	loadStyleList();
1215	loadToolbarList();
1216
1217	#ifndef QT_NO_PRINTER
1218	actionFilePrintPreview->setText(tr("P&rint Preview..."));
1219	#ifndef QT_NO_TOOLTIP
1220	actionFilePrintPreview->setToolTip(tr("Preview solution results"));
1221	#endif // QT_NO_TOOLTIP
1222	#ifndef QT_NO_STATUSTIP
1223	actionFilePrintPreview->setStatusTip(tr("Preview current solution results before printing"));
1224	#endif // QT_NO_STATUSTIP
1225
1226	actionFilePrint->setText(tr("&Print..."));
1227	#ifndef QT_NO_TOOLTIP
1228	actionFilePrint->setToolTip(tr("Print solution"));
1229	#endif // QT_NO_TOOLTIP
1230	#ifndef QT_NO_STATUSTIP
1231	actionFilePrint->setStatusTip(tr("Print current solution results"));
1232	#endif // QT_NO_STATUSTIP
1233	actionFilePrint->setShortcut(tr("Ctrl+P"));
1234	#endif // QT_NO_PRINTER
1235
1236	#ifndef HANDHELD
1237	actionSettingsToolbarsConfigure->setText(tr("Configure..."));
1238	#ifndef QT_NO_STATUSTIP
1239	actionSettingsToolbarsConfigure->setStatusTip(tr("Customize toolbars"));
1240	#endif // QT_NO_STATUSTIP
1241	#endif // HANDHELD
1242
1243	#ifdef Q_OS_WIN32
1244	actionHelpCheck4Updates->setText(tr("Check for &Updates..."));
1245	#ifndef QT_NO_STATUSTIP
1246	actionHelpCheck4Updates->setStatusTip(tr("Check for %1 updates").arg(QApplication::applicationName()));
1247	#endif // QT_NO_STATUSTIP
1248	#endif // Q_OS_WIN32
1249	}
1250
1251	bool MainWindow::saveTask() {
1252	QStringList filters(tr("%1 Task File").arg("TSPSG") + " (*.tspt)");
1253	filters.append(tr("All Files") + " (*)");
1254	QString file;
1255	if (fileName.endsWith(".tspt", Qt::CaseInsensitive))
1256	file = fileName;
1257	else
1258	file = QFileInfo(fileName).canonicalPath() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt";
1259
1260	QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
1261	file = QFileDialog::getSaveFileName(this, tr("Task Save"), file, filters.join(";;"), NULL, opts);
1262
1263	if (file.isEmpty())
1264	return false;
1265	if (tspmodel->saveTask(file)) {
1266	setFileName(file);
1267	setWindowModified(false);
1268	return true;
1269	}
1270	return false;
1271	}
1272
1273	void MainWindow::setFileName(const QString &fileName)
1274	{
1275	this->fileName = fileName;
1276	setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(QApplication::applicationName()));
1277	}
1278
1279	void MainWindow::setupUi()
1280	{
1281	Ui::MainWindow::setupUi(this);
1282
1283	// File Menu
1284	actionFileNew->setIcon(QIcon::fromTheme("document-new", QIcon(":/images/icons/document-new.png")));
1285	actionFileOpen->setIcon(QIcon::fromTheme("document-open", QIcon(":/images/icons/document-open.png")));
1286	actionFileSave->setIcon(QIcon::fromTheme("document-save", QIcon(":/images/icons/document-save.png")));
1287	menuFileSaveAs->setIcon(QIcon::fromTheme("document-save-as", QIcon(":/images/icons/document-save-as.png")));
1288	actionFileExit->setIcon(QIcon::fromTheme("application-exit", QIcon(":/images/icons/application-exit.png")));
1289	// Settings Menu
1290	menuSettingsLanguage->setIcon(QIcon::fromTheme("preferences-desktop-locale", QIcon(":/images/icons/preferences-desktop-locale.png")));
1291	actionSettingsLanguageEnglish->setIcon(QIcon::fromTheme("flag-gb"/, QIcon(":/images/icons/l10n/gb.png")/));
1292	menuSettingsStyle->setIcon(QIcon::fromTheme("preferences-desktop-theme", QIcon(":/images/icons/preferences-desktop-theme.png")));
1293	actionSettingsPreferences->setIcon(QIcon::fromTheme("preferences-system", QIcon(":/images/icons/preferences-system.png")));
1294	// Help Menu
1295	actionHelpContents->setIcon(QIcon::fromTheme("help-contents", QIcon(":/images/icons/help-contents.png")));
1296	actionHelpContextual->setIcon(QIcon::fromTheme("help-contextual", QIcon(":/images/icons/help-contextual.png")));
1297	actionHelpAbout->setIcon(QIcon::fromTheme("help-about", QIcon(":/images/icons/help-about.png")));
1298	// Buttons
1299	buttonRandom->setIcon(QIcon::fromTheme("roll", QIcon(":/images/icons/roll.png")));
1300	buttonSolve->setIcon(QIcon::fromTheme("dialog-ok", QIcon(":/images/icons/dialog-ok.png")));
1301	buttonSaveSolution->setIcon(QIcon::fromTheme("document-save-as", QIcon(":/images/icons/document-save-as.png")));
1302	buttonBackToTask->setIcon(QIcon::fromTheme("go-previous", QIcon(":/images/icons/go-previous.png")));
1303
1304	// action->setIcon(QIcon::fromTheme("", QIcon(":/images/icons/.png")));
1305
1306	#if QT_VERSION >= 0x040600
1307	setToolButtonStyle(Qt::ToolButtonFollowStyle);
1308	#endif
1309
1310	#ifndef HANDHELD
1311	QStatusBar *statusbar = new QStatusBar(this);
1312	statusbar->setObjectName("statusbar");
1313	setStatusBar(statusbar);
1314	#endif // HANDHELD
1315
1316	#ifdef Q_OS_WINCE_WM
1317	menuBar()->setDefaultAction(menuFile->menuAction());
1318
1319	QScrollArea *scrollArea = new QScrollArea(this);
1320	scrollArea->setFrameShape(QFrame::NoFrame);
1321	scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
1322	scrollArea->setWidgetResizable(true);
1323	scrollArea->setWidget(tabWidget);
1324	setCentralWidget(scrollArea);
1325	#else
1326	setCentralWidget(tabWidget);
1327	#endif // Q_OS_WINCE_WM
1328
1329	//! \hack HACK: A little hack for toolbar icons to have a sane size.
1330	#ifdef HANDHELD
1331	toolBarMain->setIconSize(QSize(logicalDpiX() / 4, logicalDpiY() / 4));
1332	#endif // HANDHELD
1333	QToolButton tb = static_cast<QToolButton >(toolBarMain->widgetForAction(actionFileSave));
1334	if (tb != NULL) {
1335	tb->setMenu(menuFileSaveAs);
1336	tb->setPopupMode(QToolButton::MenuButtonPopup);
1337	}
1338
1339	// solutionText->document()->setDefaultFont(settings->value("Output/Font", QFont(DEF_FONT_FAMILY, DEF_FONT_SIZE)).value<QFont>());
1340	solutionText->setWordWrapMode(QTextOption::WordWrap);
1341
1342	#ifndef QT_NO_PRINTER
1343	actionFilePrintPreview = new QAction(this);
1344	actionFilePrintPreview->setObjectName("actionFilePrintPreview");
1345	actionFilePrintPreview->setEnabled(false);
1346	actionFilePrintPreview->setIcon(QIcon::fromTheme("document-print-preview", QIcon(":/images/icons/document-print-preview.png")));
1347
1348	actionFilePrint = new QAction(this);
1349	actionFilePrint->setObjectName("actionFilePrint");
1350	actionFilePrint->setEnabled(false);
1351	actionFilePrint->setIcon(QIcon::fromTheme("document-print", QIcon(":/images/icons/document-print.png")));
1352
1353	menuFile->insertAction(actionFileExit,actionFilePrintPreview);
1354	menuFile->insertAction(actionFileExit,actionFilePrint);
1355	menuFile->insertSeparator(actionFileExit);
1356
1357	toolBarMain->insertAction(actionSettingsPreferences, actionFilePrint);
1358	#endif // QT_NO_PRINTER
1359
1360	groupSettingsLanguageList = new QActionGroup(this);
1361	actionSettingsLanguageEnglish->setData("en");
1362	actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
1363	loadLangList();
1364	actionSettingsLanguageAutodetect->setChecked(settings->value("Language", "").toString().isEmpty());
1365
1366	actionSettingsStyleSystem->setData(true);
1367	groupSettingsStyleList = new QActionGroup(this);
1368
1369	#ifndef HANDHELD
1370	actionSettingsToolbarsConfigure = new QAction(this);
1371	actionSettingsToolbarsConfigure->setIcon(QIcon::fromTheme("configure-toolbars", QIcon(":/images/icons/configure-toolbars.png")));
1372	#endif // HANDHELD
1373
1374	#ifdef Q_OS_WIN32
1375	actionHelpCheck4Updates = new QAction(this);
1376	actionHelpCheck4Updates->setIcon(QIcon::fromTheme("system-software-update", QIcon(":/images/icons/system-software-update.png")));
1377	actionHelpCheck4Updates->setEnabled(hasUpdater());
1378	menuHelp->insertAction(actionHelpAboutQt, actionHelpCheck4Updates);
1379	menuHelp->insertSeparator(actionHelpAboutQt);
1380	#endif // Q_OS_WIN32
1381
1382	spinCities->setMaximum(MAX_NUM_CITIES);
1383
1384	#ifndef HANDHELD
1385	toolBarManager = new QtToolBarManager;
1386	toolBarManager->setMainWindow(this);
1387	QString cat = toolBarMain->windowTitle();
1388	toolBarManager->addToolBar(toolBarMain, cat);
1389	#ifndef QT_NO_PRINTER
1390	toolBarManager->addAction(actionFilePrintPreview, cat);
1391	#endif // QT_NO_PRINTER
1392	toolBarManager->addAction(actionHelpContents, cat);
1393	toolBarManager->addAction(actionHelpContextual, cat);
1394	// toolBarManager->addAction(action, cat);
1395	toolBarManager->restoreState(settings->value("MainWindow/Toolbars").toByteArray());
1396	#endif // HANDHELD
1397
1398	retranslateUi(false);
1399
1400	#ifdef Q_OS_WIN32
1401	// Adding some eyecandy in Vista and 7 :-)
1402	if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool()) {
1403	toggleTranclucency(true);
1404	}
1405	#endif // Q_OS_WIN32
1406	}
1407
1408	void MainWindow::toggleSolutionActions(bool enable)
1409	{
1410	buttonSaveSolution->setEnabled(enable);
1411	actionFileSaveAsSolution->setEnabled(enable);
1412	solutionText->setEnabled(enable);
1413	#ifndef QT_NO_PRINTER
1414	actionFilePrint->setEnabled(enable);
1415	actionFilePrintPreview->setEnabled(enable);
1416	#endif // QT_NO_PRINTER
1417	}
1418
1419	void MainWindow::toggleTranclucency(bool enable)
1420	{
1421	#ifdef Q_OS_WIN32
1422	toggleStyle(labelVariant, enable);
1423	toggleStyle(labelCities, enable);
1424	toggleStyle(statusBar(), enable);
1425	tabWidget->setDocumentMode(enable);
1426	QtWin::enableBlurBehindWindow(this, enable);
1427	#else
1428	Q_UNUSED(enable);
1429	#endif // Q_OS_WIN32
1430	}

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