| 1 |
// qsampler.cpp |
| 2 |
// |
| 3 |
/**************************************************************************** |
| 4 |
Copyright (C) 2004-2019, rncbc aka Rui Nuno Capela. All rights reserved. |
| 5 |
Copyright (C) 2007,2008,2015 Christian Schoenebeck |
| 6 |
|
| 7 |
This program is free software; you can redistribute it and/or |
| 8 |
modify it under the terms of the GNU General Public License |
| 9 |
as published by the Free Software Foundation; either version 2 |
| 10 |
of the License, or (at your option) any later version. |
| 11 |
|
| 12 |
This program is distributed in the hope that it will be useful, |
| 13 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 |
GNU General Public License for more details. |
| 16 |
|
| 17 |
You should have received a copy of the GNU General Public License along |
| 18 |
with this program; if not, write to the Free Software Foundation, Inc., |
| 19 |
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 |
|
| 21 |
*****************************************************************************/ |
| 22 |
|
| 23 |
#include "qsampler.h" |
| 24 |
|
| 25 |
#include "qsamplerOptions.h" |
| 26 |
#include "qsamplerMainForm.h" |
| 27 |
|
| 28 |
#include <QLibraryInfo> |
| 29 |
#include <QTranslator> |
| 30 |
#include <QLocale> |
| 31 |
|
| 32 |
#if defined(__APPLE__) // Toshi Nagata 20080105 |
| 33 |
#include <QDir> |
| 34 |
#endif |
| 35 |
|
| 36 |
#ifndef CONFIG_PREFIX |
| 37 |
#define CONFIG_PREFIX "/usr/local" |
| 38 |
#endif |
| 39 |
|
| 40 |
#ifndef CONFIG_DATADIR |
| 41 |
#define CONFIG_DATADIR CONFIG_PREFIX "/share" |
| 42 |
#endif |
| 43 |
|
| 44 |
#if defined(__WIN32__) || defined(_WIN32) || defined(WIN32) |
| 45 |
#define RELATIVE_LOCALE_DIR "/share/locale" |
| 46 |
#elif defined(__APPLE__) |
| 47 |
#define RELATIVE_LOCALE_DIR "/../Resources" |
| 48 |
#endif |
| 49 |
|
| 50 |
|
| 51 |
//------------------------------------------------------------------------- |
| 52 |
// Singleton application instance stuff (Qt/X11 only atm.) |
| 53 |
// |
| 54 |
|
| 55 |
#ifdef CONFIG_X11 |
| 56 |
#ifdef CONFIG_XUNIQUE |
| 57 |
|
| 58 |
#include <unistd.h> /* for gethostname() */ |
| 59 |
|
| 60 |
#include <X11/Xatom.h> |
| 61 |
#include <X11/Xlib.h> |
| 62 |
|
| 63 |
#define QSAMPLER_XUNIQUE "qsamplerApplication" |
| 64 |
|
| 65 |
#if QT_VERSION >= 0x050100 |
| 66 |
|
| 67 |
#include <xcb/xcb.h> |
| 68 |
#include <xcb/xproto.h> |
| 69 |
|
| 70 |
#include <QAbstractNativeEventFilter> |
| 71 |
|
| 72 |
class qsamplerXcbEventFilter : public QAbstractNativeEventFilter |
| 73 |
{ |
| 74 |
public: |
| 75 |
|
| 76 |
// Constructor. |
| 77 |
qsamplerXcbEventFilter(qsamplerApplication *pApp) |
| 78 |
: QAbstractNativeEventFilter(), m_pApp(pApp) {} |
| 79 |
|
| 80 |
// XCB event filter (virtual processor). |
| 81 |
bool nativeEventFilter(const QByteArray& eventType, void *message, long *) |
| 82 |
{ |
| 83 |
if (eventType == "xcb_generic_event_t") { |
| 84 |
xcb_property_notify_event_t *pEv |
| 85 |
= static_cast<xcb_property_notify_event_t *> (message); |
| 86 |
if ((pEv->response_type & ~0x80) == XCB_PROPERTY_NOTIFY |
| 87 |
&& pEv->state == XCB_PROPERTY_NEW_VALUE) |
| 88 |
m_pApp->x11PropertyNotify(pEv->window); |
| 89 |
} |
| 90 |
return false; |
| 91 |
} |
| 92 |
|
| 93 |
private: |
| 94 |
|
| 95 |
// Instance variable. |
| 96 |
qsamplerApplication *m_pApp; |
| 97 |
}; |
| 98 |
|
| 99 |
#endif |
| 100 |
|
| 101 |
#endif // CONFIG_XUNIQUE |
| 102 |
#endif // CONFIG_X11 |
| 103 |
|
| 104 |
|
| 105 |
// Constructor. |
| 106 |
qsamplerApplication::qsamplerApplication ( int& argc, char **argv ) |
| 107 |
: QApplication(argc, argv), |
| 108 |
m_pQtTranslator(NULL), m_pMyTranslator(NULL), m_pWidget(NULL) |
| 109 |
{ |
| 110 |
// Load translation support. |
| 111 |
QLocale loc; |
| 112 |
if (loc.language() != QLocale::C) { |
| 113 |
// Try own Qt translation... |
| 114 |
m_pQtTranslator = new QTranslator(this); |
| 115 |
QString sLocName = "qt_" + loc.name(); |
| 116 |
QString sLocPath = QLibraryInfo::location(QLibraryInfo::TranslationsPath); |
| 117 |
if (m_pQtTranslator->load(sLocName, sLocPath)) { |
| 118 |
QApplication::installTranslator(m_pQtTranslator); |
| 119 |
} else { |
| 120 |
#ifdef RELATIVE_LOCALE_DIR |
| 121 |
sLocPath = QApplication::applicationDirPath() + RELATIVE_LOCALE_DIR; |
| 122 |
if (m_pQtTranslator->load(sLocName, sLocPath)) { |
| 123 |
QApplication::installTranslator(m_pQtTranslator); |
| 124 |
} else { |
| 125 |
#endif |
| 126 |
delete m_pQtTranslator; |
| 127 |
m_pQtTranslator = 0; |
| 128 |
#ifdef CONFIG_DEBUG |
| 129 |
qWarning("Warning: no translation found for '%s' locale: %s/%s.qm", |
| 130 |
loc.name().toUtf8().constData(), |
| 131 |
sLocPath.toUtf8().constData(), |
| 132 |
sLocName.toUtf8().constData()); |
| 133 |
#endif |
| 134 |
#ifdef RELATIVE_LOCALE_DIR |
| 135 |
} |
| 136 |
#endif |
| 137 |
} |
| 138 |
// Try own application translation... |
| 139 |
m_pMyTranslator = new QTranslator(this); |
| 140 |
sLocName = "qsampler_" + loc.name(); |
| 141 |
if (m_pMyTranslator->load(sLocName, sLocPath)) { |
| 142 |
QApplication::installTranslator(m_pMyTranslator); |
| 143 |
} else { |
| 144 |
#ifdef RELATIVE_LOCALE_DIR |
| 145 |
sLocPath = QApplication::applicationDirPath() + RELATIVE_LOCALE_DIR; |
| 146 |
#else |
| 147 |
sLocPath = CONFIG_DATADIR "/qsampler/translations"; |
| 148 |
#endif |
| 149 |
if (m_pMyTranslator->load(sLocName, sLocPath)) { |
| 150 |
QApplication::installTranslator(m_pMyTranslator); |
| 151 |
} else { |
| 152 |
delete m_pMyTranslator; |
| 153 |
m_pMyTranslator = 0; |
| 154 |
#ifdef CONFIG_DEBUG |
| 155 |
qWarning("Warning: no translation found for '%s' locale: %s/%s.qm", |
| 156 |
loc.name().toUtf8().constData(), |
| 157 |
sLocPath.toUtf8().constData(), |
| 158 |
sLocName.toUtf8().constData()); |
| 159 |
#endif |
| 160 |
} |
| 161 |
} |
| 162 |
} |
| 163 |
#ifdef CONFIG_X11 |
| 164 |
#ifdef CONFIG_XUNIQUE |
| 165 |
m_pDisplay = NULL; |
| 166 |
m_aUnique = 0; |
| 167 |
m_wOwner = 0; |
| 168 |
#if QT_VERSION >= 0x050100 |
| 169 |
m_pXcbEventFilter = new qsamplerXcbEventFilter(this); |
| 170 |
installNativeEventFilter(m_pXcbEventFilter); |
| 171 |
#endif |
| 172 |
#endif // CONFIG_XUNIQUE |
| 173 |
#endif // CONFIG_X11 |
| 174 |
} |
| 175 |
|
| 176 |
|
| 177 |
// Destructor. |
| 178 |
qsamplerApplication::~qsamplerApplication (void) |
| 179 |
{ |
| 180 |
#ifdef CONFIG_X11 |
| 181 |
#ifdef CONFIG_XUNIQUE |
| 182 |
#if QT_VERSION >= 0x050100 |
| 183 |
removeNativeEventFilter(m_pXcbEventFilter); |
| 184 |
delete m_pXcbEventFilter; |
| 185 |
#endif |
| 186 |
#endif // CONFIG_XUNIQUE |
| 187 |
#endif // CONFIG_X11 |
| 188 |
if (m_pMyTranslator) delete m_pMyTranslator; |
| 189 |
if (m_pQtTranslator) delete m_pQtTranslator; |
| 190 |
} |
| 191 |
|
| 192 |
|
| 193 |
// Main application widget accessors. |
| 194 |
void qsamplerApplication::setMainWidget ( QWidget *pWidget ) |
| 195 |
{ |
| 196 |
m_pWidget = pWidget; |
| 197 |
#ifdef CONFIG_X11 |
| 198 |
#ifdef CONFIG_XUNIQUE |
| 199 |
m_wOwner = m_pWidget->winId(); |
| 200 |
if (m_pDisplay && m_wOwner) { |
| 201 |
XGrabServer(m_pDisplay); |
| 202 |
XSetSelectionOwner(m_pDisplay, m_aUnique, m_wOwner, CurrentTime); |
| 203 |
XUngrabServer(m_pDisplay); |
| 204 |
} |
| 205 |
#endif // CONFIG_XUNIQUE |
| 206 |
#endif // CONFIG_X11 |
| 207 |
} |
| 208 |
|
| 209 |
|
| 210 |
// Check if another instance is running, |
| 211 |
// and raise its proper main widget... |
| 212 |
bool qsamplerApplication::setup (void) |
| 213 |
{ |
| 214 |
#ifdef CONFIG_X11 |
| 215 |
#ifdef CONFIG_XUNIQUE |
| 216 |
#if QT_VERSION >= 0x050100 |
| 217 |
if (!QX11Info::isPlatformX11()) |
| 218 |
return false; |
| 219 |
#endif |
| 220 |
m_pDisplay = QX11Info::display(); |
| 221 |
if (m_pDisplay) { |
| 222 |
QString sUnique = QSAMPLER_XUNIQUE; |
| 223 |
char szHostName[255]; |
| 224 |
if (::gethostname(szHostName, sizeof(szHostName)) == 0) { |
| 225 |
sUnique += '@'; |
| 226 |
sUnique += szHostName; |
| 227 |
} |
| 228 |
m_aUnique = XInternAtom(m_pDisplay, sUnique.toUtf8().constData(), false); |
| 229 |
XGrabServer(m_pDisplay); |
| 230 |
m_wOwner = XGetSelectionOwner(m_pDisplay, m_aUnique); |
| 231 |
XUngrabServer(m_pDisplay); |
| 232 |
if (m_wOwner != None) { |
| 233 |
// First, notify any freedesktop.org WM |
| 234 |
// that we're about to show the main widget... |
| 235 |
Screen *pScreen = XDefaultScreenOfDisplay(m_pDisplay); |
| 236 |
int iScreen = XScreenNumberOfScreen(pScreen); |
| 237 |
XEvent ev; |
| 238 |
memset(&ev, 0, sizeof(ev)); |
| 239 |
ev.xclient.type = ClientMessage; |
| 240 |
ev.xclient.display = m_pDisplay; |
| 241 |
ev.xclient.window = m_wOwner; |
| 242 |
ev.xclient.message_type = XInternAtom(m_pDisplay, "_NET_ACTIVE_WINDOW", false); |
| 243 |
ev.xclient.format = 32; |
| 244 |
ev.xclient.data.l[0] = 0; // Source indication. |
| 245 |
ev.xclient.data.l[1] = 0; // Timestamp. |
| 246 |
ev.xclient.data.l[2] = 0; // Requestor's currently active window (none) |
| 247 |
ev.xclient.data.l[3] = 0; |
| 248 |
ev.xclient.data.l[4] = 0; |
| 249 |
XSelectInput(m_pDisplay, m_wOwner, StructureNotifyMask); |
| 250 |
XSendEvent(m_pDisplay, RootWindow(m_pDisplay, iScreen), false, |
| 251 |
(SubstructureNotifyMask | SubstructureRedirectMask), &ev); |
| 252 |
XSync(m_pDisplay, false); |
| 253 |
XRaiseWindow(m_pDisplay, m_wOwner); |
| 254 |
// And then, let it get caught on destination |
| 255 |
// by QApplication::native/x11EventFilter... |
| 256 |
const QByteArray value = QSAMPLER_XUNIQUE; |
| 257 |
XChangeProperty( |
| 258 |
m_pDisplay, |
| 259 |
m_wOwner, |
| 260 |
m_aUnique, |
| 261 |
m_aUnique, 8, |
| 262 |
PropModeReplace, |
| 263 |
(unsigned char *) value.data(), |
| 264 |
value.length()); |
| 265 |
// Done. |
| 266 |
return true; |
| 267 |
} |
| 268 |
} |
| 269 |
#endif // CONFIG_XUNIQUE |
| 270 |
#endif // CONFIG_X11 |
| 271 |
return false; |
| 272 |
} |
| 273 |
|
| 274 |
|
| 275 |
#ifdef CONFIG_X11 |
| 276 |
#ifdef CONFIG_XUNIQUE |
| 277 |
void qsamplerApplication::x11PropertyNotify ( Window w ) |
| 278 |
{ |
| 279 |
if (m_pDisplay && m_pWidget && m_wOwner == w) { |
| 280 |
// Always check whether our property-flag is still around... |
| 281 |
Atom aType; |
| 282 |
int iFormat = 0; |
| 283 |
unsigned long iItems = 0; |
| 284 |
unsigned long iAfter = 0; |
| 285 |
unsigned char *pData = 0; |
| 286 |
if (XGetWindowProperty( |
| 287 |
m_pDisplay, |
| 288 |
m_wOwner, |
| 289 |
m_aUnique, |
| 290 |
0, 1024, |
| 291 |
false, |
| 292 |
m_aUnique, |
| 293 |
&aType, |
| 294 |
&iFormat, |
| 295 |
&iItems, |
| 296 |
&iAfter, |
| 297 |
&pData) == Success |
| 298 |
&& aType == m_aUnique && iItems > 0 && iAfter == 0) { |
| 299 |
// Avoid repeating it-self... |
| 300 |
XDeleteProperty(m_pDisplay, m_wOwner, m_aUnique); |
| 301 |
// Just make it always shows up fine... |
| 302 |
m_pWidget->show(); |
| 303 |
m_pWidget->raise(); |
| 304 |
m_pWidget->activateWindow(); |
| 305 |
} |
| 306 |
// Free any left-overs... |
| 307 |
if (iItems > 0 && pData) |
| 308 |
XFree(pData); |
| 309 |
} |
| 310 |
} |
| 311 |
|
| 312 |
|
| 313 |
#if QT_VERSION < 0x050000 |
| 314 |
bool qsamplerApplication::x11EventFilter ( XEvent *pEv ) |
| 315 |
{ |
| 316 |
if (pEv->type == PropertyNotify |
| 317 |
&& pEv->xproperty.state == PropertyNewValue) |
| 318 |
x11PropertyNotify(pEv->xproperty.window); |
| 319 |
return QApplication::x11EventFilter(pEv); |
| 320 |
} |
| 321 |
#endif |
| 322 |
|
| 323 |
#endif // CONFIG_XUNIQUE |
| 324 |
#endif // CONFIG_X11 |
| 325 |
|
| 326 |
|
| 327 |
//------------------------------------------------------------------------- |
| 328 |
// stacktrace - Signal crash handler. |
| 329 |
// |
| 330 |
|
| 331 |
#ifdef CONFIG_STACKTRACE |
| 332 |
#if defined(__GNUC__) && defined(Q_OS_LINUX) |
| 333 |
|
| 334 |
#include <stdio.h> |
| 335 |
#include <errno.h> |
| 336 |
#include <signal.h> |
| 337 |
#include <unistd.h> |
| 338 |
#include <sys/wait.h> |
| 339 |
|
| 340 |
void stacktrace ( int signo ) |
| 341 |
{ |
| 342 |
pid_t pid; |
| 343 |
int rc; |
| 344 |
int status = 0; |
| 345 |
char cmd[80]; |
| 346 |
|
| 347 |
// Reinstall default handler; prevent race conditions... |
| 348 |
signal(signo, SIG_DFL); |
| 349 |
|
| 350 |
static const char *shell = "/bin/sh"; |
| 351 |
static const char *format = "gdb -q --batch --pid=%d" |
| 352 |
" --eval-command='thread apply all bt'"; |
| 353 |
|
| 354 |
snprintf(cmd, sizeof(cmd), format, (int) getpid()); |
| 355 |
|
| 356 |
pid = fork(); |
| 357 |
|
| 358 |
// Fork failure! |
| 359 |
if (pid < 0) |
| 360 |
return; |
| 361 |
|
| 362 |
// Fork child... |
| 363 |
if (pid == 0) { |
| 364 |
execl(shell, shell, "-c", cmd, NULL); |
| 365 |
_exit(1); |
| 366 |
return; |
| 367 |
} |
| 368 |
|
| 369 |
// Parent here: wait for child to terminate... |
| 370 |
do { rc = waitpid(pid, &status, 0); } |
| 371 |
while ((rc < 0) && (errno == EINTR)); |
| 372 |
|
| 373 |
// Dispatch any logging, if any... |
| 374 |
QApplication::processEvents(QEventLoop::AllEvents, 3000); |
| 375 |
|
| 376 |
// Make sure everyone terminates... |
| 377 |
kill(pid, SIGTERM); |
| 378 |
_exit(1); |
| 379 |
} |
| 380 |
|
| 381 |
#endif |
| 382 |
#endif |
| 383 |
|
| 384 |
|
| 385 |
//------------------------------------------------------------------------- |
| 386 |
// main - The main program trunk. |
| 387 |
// |
| 388 |
|
| 389 |
int main ( int argc, char **argv ) |
| 390 |
{ |
| 391 |
Q_INIT_RESOURCE(qsampler); |
| 392 |
#ifdef CONFIG_STACKTRACE |
| 393 |
#if defined(__GNUC__) && defined(Q_OS_LINUX) |
| 394 |
signal(SIGILL, stacktrace); |
| 395 |
signal(SIGFPE, stacktrace); |
| 396 |
signal(SIGSEGV, stacktrace); |
| 397 |
signal(SIGABRT, stacktrace); |
| 398 |
signal(SIGBUS, stacktrace); |
| 399 |
#endif |
| 400 |
#endif |
| 401 |
qsamplerApplication app(argc, argv); |
| 402 |
#if QT_VERSION >= 0x050600 |
| 403 |
app.setAttribute(Qt::AA_EnableHighDpiScaling); |
| 404 |
#endif |
| 405 |
#if defined(__APPLE__) // Toshi Nagata 20080105 |
| 406 |
{ |
| 407 |
// Set the plugin path to @exetutable_path/../plugins |
| 408 |
QDir dir(QApplication::applicationDirPath()); |
| 409 |
dir.cdUp(); // "Contents" directory |
| 410 |
QApplication::setLibraryPaths(QStringList(dir.absolutePath() + "/plugins")); |
| 411 |
|
| 412 |
// Set the PATH environment variable to include @executable_path/../../.. |
| 413 |
dir.cdUp(); |
| 414 |
dir.cdUp(); |
| 415 |
QString path(getenv("PATH")); |
| 416 |
path = dir.absolutePath() + ":" + path; |
| 417 |
setenv("PATH", path.toUtf8().constData(), 1); |
| 418 |
} |
| 419 |
#endif |
| 420 |
|
| 421 |
// Construct default settings; override with command line arguments. |
| 422 |
QSampler::Options options; |
| 423 |
if (!options.parse_args(app.arguments())) { |
| 424 |
app.quit(); |
| 425 |
return 1; |
| 426 |
} |
| 427 |
|
| 428 |
// Have another instance running? |
| 429 |
if (app.setup()) { |
| 430 |
app.quit(); |
| 431 |
return 2; |
| 432 |
} |
| 433 |
|
| 434 |
// Dark themes grayed/disabled color group fix... |
| 435 |
QPalette pal(app.palette()); |
| 436 |
if (pal.base().color().value() < 0x7f) { |
| 437 |
#if QT_VERSION >= 0x050000 |
| 438 |
const QColor& color = pal.window().color(); |
| 439 |
const int iGroups = int(QPalette::Active | QPalette::Inactive) + 1; |
| 440 |
for (int i = 0; i < iGroups; ++i) { |
| 441 |
const QPalette::ColorGroup group = QPalette::ColorGroup(i); |
| 442 |
pal.setBrush(group, QPalette::Light, color.lighter(150)); |
| 443 |
pal.setBrush(group, QPalette::Midlight, color.lighter(120)); |
| 444 |
pal.setBrush(group, QPalette::Dark, color.darker(150)); |
| 445 |
pal.setBrush(group, QPalette::Mid, color.darker(120)); |
| 446 |
pal.setBrush(group, QPalette::Shadow, color.darker(200)); |
| 447 |
} |
| 448 |
// pal.setColor(QPalette::Disabled, QPalette::ButtonText, pal.mid().color()); |
| 449 |
#endif |
| 450 |
pal.setColorGroup(QPalette::Disabled, |
| 451 |
pal.windowText().color().darker(), |
| 452 |
pal.button(), |
| 453 |
pal.light(), |
| 454 |
pal.dark(), |
| 455 |
pal.mid(), |
| 456 |
pal.text().color().darker(), |
| 457 |
pal.text().color().lighter(), |
| 458 |
pal.base(), |
| 459 |
pal.window()); |
| 460 |
app.setPalette(pal); |
| 461 |
} |
| 462 |
|
| 463 |
// Set default base font... |
| 464 |
if (options.iBaseFontSize > 0) |
| 465 |
app.setFont(QFont(app.font().family(), options.iBaseFontSize)); |
| 466 |
|
| 467 |
// Construct, setup and show the main form. |
| 468 |
QSampler::MainForm w; |
| 469 |
w.setup(&options); |
| 470 |
w.show(); |
| 471 |
|
| 472 |
// Settle this one as application main widget... |
| 473 |
app.setMainWidget(&w); |
| 474 |
|
| 475 |
// Register the quit signal/slot. |
| 476 |
// app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit())); |
| 477 |
|
| 478 |
return app.exec(); |
| 479 |
} |
| 480 |
|
| 481 |
|
| 482 |
// end of qsampler.cpp |
| 483 |
|
Parent Directory
| 
Revision Log