1 |
// qsampler.cpp |
2 |
// |
3 |
/**************************************************************************** |
4 |
Copyright (C) 2004-2010, rncbc aka Rui Nuno Capela. All rights reserved. |
5 |
Copyright (C) 2007, 2008 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 "qsamplerAbout.h" |
24 |
#include "qsamplerOptions.h" |
25 |
#include "qsamplerMainForm.h" |
26 |
|
27 |
#include <QApplication> |
28 |
#include <QLibraryInfo> |
29 |
#include <QTranslator> |
30 |
#include <QLocale> |
31 |
#if defined(__APPLE__) // Toshi Nagata 20080105 |
32 |
#include <QDir> |
33 |
#endif |
34 |
|
35 |
#if QT_VERSION < 0x040300 |
36 |
#define lighter(x) light(x) |
37 |
#define darker(x) dark(x) |
38 |
#endif |
39 |
|
40 |
#if WIN32 |
41 |
#define RELATIVE_LOCALE_DIR "/share/locale" |
42 |
#elif defined(__APPLE__) |
43 |
#define RELATIVE_LOCALE_DIR "/../Resources" |
44 |
#endif |
45 |
|
46 |
|
47 |
//------------------------------------------------------------------------- |
48 |
// Singleton application instance stuff (Qt/X11 only atm.) |
49 |
// |
50 |
|
51 |
#if defined(Q_WS_X11) |
52 |
|
53 |
#include <QX11Info> |
54 |
|
55 |
#include <X11/Xatom.h> |
56 |
#include <X11/Xlib.h> |
57 |
|
58 |
#define QSAMPLER_XUNIQUE "qsamplerMainForm_xunique" |
59 |
|
60 |
#endif |
61 |
|
62 |
class qsamplerApplication : public QApplication |
63 |
{ |
64 |
public: |
65 |
|
66 |
// Constructor. |
67 |
qsamplerApplication(int& argc, char **argv) : QApplication(argc, argv), |
68 |
m_pQtTranslator(0), m_pMyTranslator(0), m_pWidget(0) |
69 |
{ |
70 |
// Load translation support. |
71 |
QLocale loc; |
72 |
if (loc.language() != QLocale::C) { |
73 |
// Try own Qt translation... |
74 |
m_pQtTranslator = new QTranslator(this); |
75 |
QString sLocName = "qt_" + loc.name(); |
76 |
QString sLocPath = QLibraryInfo::location(QLibraryInfo::TranslationsPath); |
77 |
if (m_pQtTranslator->load(sLocName, sLocPath)) { |
78 |
QApplication::installTranslator(m_pQtTranslator); |
79 |
} else { |
80 |
#ifdef RELATIVE_LOCALE_DIR |
81 |
sLocPath = QApplication::applicationDirPath() + RELATIVE_LOCALE_DIR; |
82 |
if (m_pQtTranslator->load(sLocName, sLocPath)) { |
83 |
QApplication::installTranslator(m_pQtTranslator); |
84 |
} else { |
85 |
#endif |
86 |
delete m_pQtTranslator; |
87 |
m_pQtTranslator = 0; |
88 |
#ifdef CONFIG_DEBUG |
89 |
qWarning("Warning: no translation found for '%s' locale: %s/%s.qm", |
90 |
loc.name().toUtf8().constData(), |
91 |
sLocPath.toUtf8().constData(), |
92 |
sLocName.toUtf8().constData()); |
93 |
#endif |
94 |
#ifdef RELATIVE_LOCALE_DIR |
95 |
} |
96 |
#endif |
97 |
} |
98 |
// Try own application translation... |
99 |
m_pMyTranslator = new QTranslator(this); |
100 |
sLocName = "qsampler_" + loc.name(); |
101 |
if (m_pMyTranslator->load(sLocName, sLocPath)) { |
102 |
QApplication::installTranslator(m_pMyTranslator); |
103 |
} else { |
104 |
#ifdef RELATIVE_LOCALE_DIR |
105 |
sLocPath = QApplication::applicationDirPath() + RELATIVE_LOCALE_DIR; |
106 |
#else |
107 |
sLocPath = CONFIG_PREFIX "/share/locale"; |
108 |
#endif |
109 |
if (m_pMyTranslator->load(sLocName, sLocPath)) { |
110 |
QApplication::installTranslator(m_pMyTranslator); |
111 |
} else { |
112 |
delete m_pMyTranslator; |
113 |
m_pMyTranslator = 0; |
114 |
#ifdef CONFIG_DEBUG |
115 |
qWarning("Warning: no translation found for '%s' locale: %s/%s.qm", |
116 |
loc.name().toUtf8().constData(), |
117 |
sLocPath.toUtf8().constData(), |
118 |
sLocName.toUtf8().constData()); |
119 |
#endif |
120 |
} |
121 |
} |
122 |
} |
123 |
#if defined(Q_WS_X11) |
124 |
m_pDisplay = QX11Info::display(); |
125 |
m_aUnique = XInternAtom(m_pDisplay, QSAMPLER_XUNIQUE, false); |
126 |
XGrabServer(m_pDisplay); |
127 |
m_wOwner = XGetSelectionOwner(m_pDisplay, m_aUnique); |
128 |
XUngrabServer(m_pDisplay); |
129 |
#endif |
130 |
} |
131 |
|
132 |
// Destructor. |
133 |
~qsamplerApplication() |
134 |
{ |
135 |
if (m_pMyTranslator) delete m_pMyTranslator; |
136 |
if (m_pQtTranslator) delete m_pQtTranslator; |
137 |
} |
138 |
|
139 |
// Main application widget accessors. |
140 |
void setMainWidget(QWidget *pWidget) |
141 |
{ |
142 |
m_pWidget = pWidget; |
143 |
#if defined(Q_WS_X11) |
144 |
XGrabServer(m_pDisplay); |
145 |
m_wOwner = m_pWidget->winId(); |
146 |
XSetSelectionOwner(m_pDisplay, m_aUnique, m_wOwner, CurrentTime); |
147 |
XUngrabServer(m_pDisplay); |
148 |
#endif |
149 |
} |
150 |
|
151 |
QWidget *mainWidget() const { return m_pWidget; } |
152 |
|
153 |
// Check if another instance is running, |
154 |
// and raise its proper main widget... |
155 |
bool setup() |
156 |
{ |
157 |
#if defined(Q_WS_X11) |
158 |
if (m_wOwner != None) { |
159 |
// First, notify any freedesktop.org WM |
160 |
// that we're about to show the main widget... |
161 |
Screen *pScreen = XDefaultScreenOfDisplay(m_pDisplay); |
162 |
int iScreen = XScreenNumberOfScreen(pScreen); |
163 |
XEvent ev; |
164 |
memset(&ev, 0, sizeof(ev)); |
165 |
ev.xclient.type = ClientMessage; |
166 |
ev.xclient.display = m_pDisplay; |
167 |
ev.xclient.window = m_wOwner; |
168 |
ev.xclient.message_type = XInternAtom(m_pDisplay, "_NET_ACTIVE_WINDOW", false); |
169 |
ev.xclient.format = 32; |
170 |
ev.xclient.data.l[0] = 0; // Source indication. |
171 |
ev.xclient.data.l[1] = 0; // Timestamp. |
172 |
ev.xclient.data.l[2] = 0; // Requestor's currently active window (none) |
173 |
ev.xclient.data.l[3] = 0; |
174 |
ev.xclient.data.l[4] = 0; |
175 |
XSelectInput(m_pDisplay, m_wOwner, StructureNotifyMask); |
176 |
XSendEvent(m_pDisplay, RootWindow(m_pDisplay, iScreen), false, |
177 |
(SubstructureNotifyMask | SubstructureRedirectMask), &ev); |
178 |
XSync(m_pDisplay, false); |
179 |
XRaiseWindow(m_pDisplay, m_wOwner); |
180 |
// And then, let it get caught on destination |
181 |
// by QApplication::x11EventFilter... |
182 |
QByteArray value = QSAMPLER_XUNIQUE; |
183 |
XChangeProperty( |
184 |
m_pDisplay, |
185 |
m_wOwner, |
186 |
m_aUnique, |
187 |
m_aUnique, 8, |
188 |
PropModeReplace, |
189 |
(unsigned char *) value.data(), |
190 |
value.length()); |
191 |
// Done. |
192 |
return true; |
193 |
} |
194 |
#endif |
195 |
return false; |
196 |
} |
197 |
|
198 |
#if defined(Q_WS_X11) |
199 |
bool x11EventFilter(XEvent *pEv) |
200 |
{ |
201 |
if (m_pWidget && m_wOwner != None |
202 |
&& pEv->type == PropertyNotify |
203 |
&& pEv->xproperty.window == m_wOwner |
204 |
&& pEv->xproperty.state == PropertyNewValue) { |
205 |
// Always check whether our property-flag is still around... |
206 |
Atom aType; |
207 |
int iFormat = 0; |
208 |
unsigned long iItems = 0; |
209 |
unsigned long iAfter = 0; |
210 |
unsigned char *pData = 0; |
211 |
if (XGetWindowProperty( |
212 |
m_pDisplay, |
213 |
m_wOwner, |
214 |
m_aUnique, |
215 |
0, 1024, |
216 |
false, |
217 |
m_aUnique, |
218 |
&aType, |
219 |
&iFormat, |
220 |
&iItems, |
221 |
&iAfter, |
222 |
&pData) == Success |
223 |
&& aType == m_aUnique && iItems > 0 && iAfter == 0) { |
224 |
// Avoid repeating it-self... |
225 |
XDeleteProperty(m_pDisplay, m_wOwner, m_aUnique); |
226 |
// Just make it always shows up fine... |
227 |
m_pWidget->show(); |
228 |
m_pWidget->raise(); |
229 |
m_pWidget->activateWindow(); |
230 |
} |
231 |
// Free any left-overs... |
232 |
if (iItems > 0 && pData) |
233 |
XFree(pData); |
234 |
} |
235 |
return QApplication::x11EventFilter(pEv); |
236 |
} |
237 |
#endif |
238 |
|
239 |
private: |
240 |
|
241 |
// Translation support. |
242 |
QTranslator *m_pQtTranslator; |
243 |
QTranslator *m_pMyTranslator; |
244 |
|
245 |
// Instance variables. |
246 |
QWidget *m_pWidget; |
247 |
|
248 |
#if defined(Q_WS_X11) |
249 |
Display *m_pDisplay; |
250 |
Atom m_aUnique; |
251 |
Window m_wOwner; |
252 |
#endif |
253 |
}; |
254 |
|
255 |
|
256 |
//------------------------------------------------------------------------- |
257 |
// stacktrace - Signal crash handler. |
258 |
// |
259 |
|
260 |
#ifdef CONFIG_STACKTRACE |
261 |
#if defined(__GNUC__) && defined(Q_OS_LINUX) |
262 |
|
263 |
#include <stdio.h> |
264 |
#include <errno.h> |
265 |
#include <signal.h> |
266 |
#include <sys/wait.h> |
267 |
|
268 |
void stacktrace ( int signo ) |
269 |
{ |
270 |
pid_t pid; |
271 |
int rc; |
272 |
int status = 0; |
273 |
char cmd[80]; |
274 |
|
275 |
// Reinstall default handler; prevent race conditions... |
276 |
signal(signo, SIG_DFL); |
277 |
|
278 |
static const char *shell = "/bin/sh"; |
279 |
static const char *format = "gdb -q --batch --pid=%d" |
280 |
" --eval-command='thread apply all bt'"; |
281 |
|
282 |
snprintf(cmd, sizeof(cmd), format, (int) getpid()); |
283 |
|
284 |
pid = fork(); |
285 |
|
286 |
// Fork failure! |
287 |
if (pid < 0) |
288 |
return; |
289 |
|
290 |
// Fork child... |
291 |
if (pid == 0) { |
292 |
execl(shell, shell, "-c", cmd, NULL); |
293 |
_exit(1); |
294 |
return; |
295 |
} |
296 |
|
297 |
// Parent here: wait for child to terminate... |
298 |
do { rc = waitpid(pid, &status, 0); } |
299 |
while ((rc < 0) && (errno == EINTR)); |
300 |
|
301 |
// Dispatch any logging, if any... |
302 |
QApplication::processEvents(QEventLoop::AllEvents, 3000); |
303 |
|
304 |
// Make sure everyone terminates... |
305 |
kill(pid, SIGTERM); |
306 |
_exit(1); |
307 |
} |
308 |
|
309 |
#endif |
310 |
#endif |
311 |
|
312 |
|
313 |
//------------------------------------------------------------------------- |
314 |
// main - The main program trunk. |
315 |
// |
316 |
|
317 |
int main ( int argc, char **argv ) |
318 |
{ |
319 |
Q_INIT_RESOURCE(qsampler); |
320 |
#ifdef CONFIG_STACKTRACE |
321 |
#if defined(__GNUC__) && defined(Q_OS_LINUX) |
322 |
signal(SIGILL, stacktrace); |
323 |
signal(SIGFPE, stacktrace); |
324 |
signal(SIGSEGV, stacktrace); |
325 |
signal(SIGABRT, stacktrace); |
326 |
signal(SIGBUS, stacktrace); |
327 |
#endif |
328 |
#endif |
329 |
qsamplerApplication app(argc, argv); |
330 |
|
331 |
#if defined(__APPLE__) // Toshi Nagata 20080105 |
332 |
{ |
333 |
// Set the plugin path to @exetutable_path/../plugins |
334 |
QDir dir(QApplication::applicationDirPath()); |
335 |
dir.cdUp(); // "Contents" directory |
336 |
QApplication::setLibraryPaths(QStringList(dir.absolutePath() + "/plugins")); |
337 |
|
338 |
// Set the PATH environment variable to include @executable_path/../../.. |
339 |
dir.cdUp(); |
340 |
dir.cdUp(); |
341 |
QString path(getenv("PATH")); |
342 |
path = dir.absolutePath() + ":" + path; |
343 |
setenv("PATH", path.toUtf8().constData(), 1); |
344 |
} |
345 |
#endif |
346 |
|
347 |
// Construct default settings; override with command line arguments. |
348 |
QSampler::Options options; |
349 |
if (!options.parse_args(app.arguments())) { |
350 |
app.quit(); |
351 |
return 1; |
352 |
} |
353 |
|
354 |
// Have another instance running? |
355 |
if (app.setup()) { |
356 |
app.quit(); |
357 |
return 2; |
358 |
} |
359 |
|
360 |
// Dark themes grayed/disabled color group fix... |
361 |
QPalette pal(app.palette()); |
362 |
if (pal.base().color().value() < 0x7f) { |
363 |
pal.setColorGroup(QPalette::Disabled, |
364 |
pal.windowText().color().darker(), |
365 |
pal.button(), |
366 |
pal.light(), |
367 |
pal.dark(), |
368 |
pal.mid(), |
369 |
pal.text().color().darker(), |
370 |
pal.text().color().lighter(), |
371 |
pal.base(), |
372 |
pal.window()); |
373 |
app.setPalette(pal); |
374 |
} |
375 |
|
376 |
// Set default base font... |
377 |
int iBaseFontSize = app.font().pointSize(); |
378 |
if (options.iBaseFontSize > 0) |
379 |
iBaseFontSize = options.iBaseFontSize; |
380 |
app.setFont(QFont(app.font().family(), iBaseFontSize)); |
381 |
|
382 |
// Construct, setup and show the main form. |
383 |
QSampler::MainForm w; |
384 |
w.setup(&options); |
385 |
w.show(); |
386 |
|
387 |
// Settle this one as application main widget... |
388 |
app.setMainWidget(&w); |
389 |
|
390 |
// Register the quit signal/slot. |
391 |
// app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit())); |
392 |
|
393 |
return app.exec(); |
394 |
} |
395 |
|
396 |
|
397 |
// end of qsampler.cpp |