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  • Committer: Package Import Robot
  • Author(s): Jaromír Mikeš
  • Date: 2015-04-26 17:30:50 UTC
  • mfrom: (5.2.2 sid)
  • Revision ID: package-import@ubuntu.com-20150426173050-0o46g530ngbdaco1
Tags: 0.3.0-1
* Imported Upstream version 0.3.0
* Fix VCS fields.
* Removed patches - they don't apply anymore.
* Add desktop patch.
* Add description to patch.
* Install upstream desktop file.
* Update copyright file.
* Enable parallel build.

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src/qsampler.cpp
 
1
// qsampler.cpp
 
2
//
 
3
/****************************************************************************
 
4
   Copyright (C) 2004-2014, 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
 
 
32
#if defined(__APPLE__)  // Toshi Nagata 20080105
 
33
#include <QDir>
 
34
#endif
 
35
 
 
36
#define CONFIG_QUOTE1(x) #x
 
37
#define CONFIG_QUOTED(x) CONFIG_QUOTE1(x)
 
38
 
 
39
#if defined(DATADIR)
 
40
#define CONFIG_DATADIR CONFIG_QUOTED(DATADIR)
 
41
#else
 
42
#define CONFIG_DATADIR CONFIG_PREFIX "/share"
 
43
#endif
 
44
 
 
45
#if WIN32
 
46
#define RELATIVE_LOCALE_DIR "/share/locale"
 
47
#elif defined(__APPLE__)
 
48
#define RELATIVE_LOCALE_DIR "/../Resources"
 
49
#endif
 
50
 
 
51
 
 
52
//-------------------------------------------------------------------------
 
53
// Singleton application instance stuff (Qt/X11 only atm.)
 
54
//
 
55
 
 
56
#if defined(Q_WS_X11)
 
57
 
 
58
#include <QX11Info>
 
59
 
 
60
#include <X11/Xatom.h>
 
61
#include <X11/Xlib.h>
 
62
 
 
63
#define QSAMPLER_XUNIQUE "qsamplerMainForm_xunique"
 
64
 
 
65
#endif
 
66
 
 
67
class qsamplerApplication : public QApplication
 
68
{
 
69
public:
 
70
 
 
71
        // Constructor.
 
72
        qsamplerApplication(int& argc, char **argv) : QApplication(argc, argv),
 
73
                m_pQtTranslator(0), m_pMyTranslator(0), m_pWidget(0)    
 
74
        {
 
75
                // Load translation support.
 
76
                QLocale loc;
 
77
                if (loc.language() != QLocale::C) {
 
78
                        // Try own Qt translation...
 
79
                        m_pQtTranslator = new QTranslator(this);
 
80
                        QString sLocName = "qt_" + loc.name();
 
81
                        QString sLocPath = QLibraryInfo::location(QLibraryInfo::TranslationsPath);
 
82
                        if (m_pQtTranslator->load(sLocName, sLocPath)) {
 
83
                                QApplication::installTranslator(m_pQtTranslator);
 
84
                        } else {
 
85
                        #ifdef RELATIVE_LOCALE_DIR
 
86
                                sLocPath = QApplication::applicationDirPath() + RELATIVE_LOCALE_DIR;
 
87
                                if (m_pQtTranslator->load(sLocName, sLocPath)) {
 
88
                                        QApplication::installTranslator(m_pQtTranslator);
 
89
                                } else {
 
90
                        #endif
 
91
                                delete m_pQtTranslator;
 
92
                                m_pQtTranslator = 0;
 
93
                        #ifdef CONFIG_DEBUG
 
94
                                qWarning("Warning: no translation found for '%s' locale: %s/%s.qm",
 
95
                                        loc.name().toUtf8().constData(),
 
96
                                        sLocPath.toUtf8().constData(),
 
97
                                        sLocName.toUtf8().constData());
 
98
                        #endif
 
99
                        #ifdef RELATIVE_LOCALE_DIR
 
100
                                }
 
101
                        #endif
 
102
                        }
 
103
                        // Try own application translation...
 
104
                        m_pMyTranslator = new QTranslator(this);
 
105
                        sLocName = "qsampler_" + loc.name();
 
106
                        if (m_pMyTranslator->load(sLocName, sLocPath)) {
 
107
                                QApplication::installTranslator(m_pMyTranslator);
 
108
                        } else {
 
109
                        #ifdef RELATIVE_LOCALE_DIR
 
110
                                sLocPath = QApplication::applicationDirPath() + RELATIVE_LOCALE_DIR;
 
111
                        #else
 
112
                                sLocPath = CONFIG_DATADIR "/qsampler/translations";
 
113
                        #endif
 
114
                                if (m_pMyTranslator->load(sLocName, sLocPath)) {
 
115
                                        QApplication::installTranslator(m_pMyTranslator);
 
116
                                } else {
 
117
                                        delete m_pMyTranslator;
 
118
                                        m_pMyTranslator = 0;
 
119
                                #ifdef CONFIG_DEBUG
 
120
                                        qWarning("Warning: no translation found for '%s' locale: %s/%s.qm",
 
121
                                                loc.name().toUtf8().constData(),
 
122
                                                sLocPath.toUtf8().constData(),
 
123
                                                sLocName.toUtf8().constData());
 
124
                                #endif
 
125
                                }
 
126
                        }
 
127
                }
 
128
        #if defined(Q_WS_X11)
 
129
                m_pDisplay = QX11Info::display();
 
130
                m_aUnique  = XInternAtom(m_pDisplay, QSAMPLER_XUNIQUE, false);
 
131
                XGrabServer(m_pDisplay);
 
132
                m_wOwner = XGetSelectionOwner(m_pDisplay, m_aUnique);
 
133
                XUngrabServer(m_pDisplay);
 
134
        #endif
 
135
        }
 
136
 
 
137
        // Destructor.
 
138
        ~qsamplerApplication()
 
139
        {
 
140
                if (m_pMyTranslator) delete m_pMyTranslator;
 
141
                if (m_pQtTranslator) delete m_pQtTranslator;
 
142
        }
 
143
 
 
144
        // Main application widget accessors.
 
145
        void setMainWidget(QWidget *pWidget)
 
146
        {
 
147
                m_pWidget = pWidget;
 
148
        #if defined(Q_WS_X11)
 
149
                XGrabServer(m_pDisplay);
 
150
                m_wOwner = m_pWidget->winId();
 
151
                XSetSelectionOwner(m_pDisplay, m_aUnique, m_wOwner, CurrentTime);
 
152
                XUngrabServer(m_pDisplay);
 
153
        #endif
 
154
        }
 
155
 
 
156
        QWidget *mainWidget() const { return m_pWidget; }
 
157
 
 
158
        // Check if another instance is running,
 
159
    // and raise its proper main widget...
 
160
        bool setup()
 
161
        {
 
162
        #if defined(Q_WS_X11)
 
163
                if (m_wOwner != None) {
 
164
                        // First, notify any freedesktop.org WM
 
165
                        // that we're about to show the main widget...
 
166
                        Screen *pScreen = XDefaultScreenOfDisplay(m_pDisplay);
 
167
                        int iScreen = XScreenNumberOfScreen(pScreen);
 
168
                        XEvent ev;
 
169
                        memset(&ev, 0, sizeof(ev));
 
170
                        ev.xclient.type = ClientMessage;
 
171
                        ev.xclient.display = m_pDisplay;
 
172
                        ev.xclient.window = m_wOwner;
 
173
                        ev.xclient.message_type = XInternAtom(m_pDisplay, "_NET_ACTIVE_WINDOW", false);
 
174
                        ev.xclient.format = 32;
 
175
                        ev.xclient.data.l[0] = 0; // Source indication.
 
176
                        ev.xclient.data.l[1] = 0; // Timestamp.
 
177
                        ev.xclient.data.l[2] = 0; // Requestor's currently active window (none)
 
178
                        ev.xclient.data.l[3] = 0;
 
179
                        ev.xclient.data.l[4] = 0;
 
180
                        XSelectInput(m_pDisplay, m_wOwner, StructureNotifyMask);
 
181
                        XSendEvent(m_pDisplay, RootWindow(m_pDisplay, iScreen), false,
 
182
                                (SubstructureNotifyMask | SubstructureRedirectMask), &ev);
 
183
                        XSync(m_pDisplay, false);
 
184
                        XRaiseWindow(m_pDisplay, m_wOwner);
 
185
                        // And then, let it get caught on destination
 
186
                        // by QApplication::x11EventFilter...
 
187
                        QByteArray value = QSAMPLER_XUNIQUE;
 
188
                        XChangeProperty(
 
189
                                m_pDisplay,
 
190
                                m_wOwner,
 
191
                                m_aUnique,
 
192
                                m_aUnique, 8,
 
193
                                PropModeReplace,
 
194
                                (unsigned char *) value.data(),
 
195
                                value.length());
 
196
                        // Done.
 
197
                        return true;
 
198
                }
 
199
        #endif
 
200
                return false;
 
201
        }
 
202
 
 
203
#if defined(Q_WS_X11)
 
204
        bool x11EventFilter(XEvent *pEv)
 
205
        {
 
206
                if (m_pWidget && m_wOwner != None
 
207
                        && pEv->type == PropertyNotify
 
208
                        && pEv->xproperty.window == m_wOwner
 
209
                        && pEv->xproperty.state == PropertyNewValue) {
 
210
                        // Always check whether our property-flag is still around...
 
211
                        Atom aType;
 
212
                        int iFormat = 0;
 
213
                        unsigned long iItems = 0;
 
214
                        unsigned long iAfter = 0;
 
215
                        unsigned char *pData = 0;
 
216
                        if (XGetWindowProperty(
 
217
                                        m_pDisplay,
 
218
                                        m_wOwner,
 
219
                                        m_aUnique,
 
220
                                        0, 1024,
 
221
                                        false,
 
222
                                        m_aUnique,
 
223
                                        &aType,
 
224
                                        &iFormat,
 
225
                                        &iItems,
 
226
                                        &iAfter,
 
227
                                        &pData) == Success
 
228
                                && aType == m_aUnique && iItems > 0 && iAfter == 0) {
 
229
                                // Avoid repeating it-self...
 
230
                                XDeleteProperty(m_pDisplay, m_wOwner, m_aUnique);
 
231
                                // Just make it always shows up fine...
 
232
                                m_pWidget->show();
 
233
                                m_pWidget->raise();
 
234
                                m_pWidget->activateWindow();
 
235
                        }
 
236
                        // Free any left-overs...
 
237
                        if (iItems > 0 && pData)
 
238
                                XFree(pData);
 
239
                }
 
240
                return QApplication::x11EventFilter(pEv);
 
241
        }
 
242
#endif
 
243
        
 
244
private:
 
245
 
 
246
        // Translation support.
 
247
        QTranslator *m_pQtTranslator;
 
248
        QTranslator *m_pMyTranslator;
 
249
 
 
250
        // Instance variables.
 
251
        QWidget *m_pWidget;
 
252
 
 
253
#if defined(Q_WS_X11)
 
254
        Display *m_pDisplay;
 
255
        Atom     m_aUnique;
 
256
        Window   m_wOwner;
 
257
#endif
 
258
};
 
259
 
 
260
 
 
261
//-------------------------------------------------------------------------
 
262
// stacktrace - Signal crash handler.
 
263
//
 
264
 
 
265
#ifdef CONFIG_STACKTRACE
 
266
#if defined(__GNUC__) && defined(Q_OS_LINUX)
 
267
 
 
268
#include <stdio.h>
 
269
#include <errno.h>
 
270
#include <signal.h>
 
271
#include <unistd.h>
 
272
#include <sys/wait.h>
 
273
 
 
274
void stacktrace ( int signo )
 
275
{
 
276
        pid_t pid;
 
277
        int rc;
 
278
        int status = 0;
 
279
        char cmd[80];
 
280
 
 
281
        // Reinstall default handler; prevent race conditions...
 
282
        signal(signo, SIG_DFL);
 
283
 
 
284
        static const char *shell  = "/bin/sh";
 
285
        static const char *format = "gdb -q --batch --pid=%d"
 
286
                " --eval-command='thread apply all bt'";
 
287
 
 
288
        snprintf(cmd, sizeof(cmd), format, (int) getpid());
 
289
 
 
290
        pid = fork();
 
291
 
 
292
        // Fork failure!
 
293
        if (pid < 0)
 
294
                return;
 
295
 
 
296
        // Fork child...
 
297
        if (pid == 0) {
 
298
                execl(shell, shell, "-c", cmd, NULL);
 
299
                _exit(1);
 
300
                return;
 
301
        }
 
302
 
 
303
        // Parent here: wait for child to terminate...
 
304
        do { rc = waitpid(pid, &status, 0); }
 
305
        while ((rc < 0) && (errno == EINTR));
 
306
 
 
307
        // Dispatch any logging, if any...
 
308
        QApplication::processEvents(QEventLoop::AllEvents, 3000);
 
309
 
 
310
        // Make sure everyone terminates...
 
311
        kill(pid, SIGTERM);
 
312
        _exit(1);
 
313
}
 
314
 
 
315
#endif
 
316
#endif
 
317
 
 
318
 
 
319
//-------------------------------------------------------------------------
 
320
// main - The main program trunk.
 
321
//
 
322
 
 
323
int main ( int argc, char **argv )
 
324
{
 
325
        Q_INIT_RESOURCE(qsampler);
 
326
#ifdef CONFIG_STACKTRACE
 
327
#if defined(__GNUC__) && defined(Q_OS_LINUX)
 
328
        signal(SIGILL,  stacktrace);
 
329
        signal(SIGFPE,  stacktrace);
 
330
        signal(SIGSEGV, stacktrace);
 
331
        signal(SIGABRT, stacktrace);
 
332
        signal(SIGBUS,  stacktrace);
 
333
#endif
 
334
#endif
 
335
        qsamplerApplication app(argc, argv);
 
336
 
 
337
        #if defined(__APPLE__)  //  Toshi Nagata 20080105
 
338
        {
 
339
                //  Set the plugin path to @exetutable_path/../plugins
 
340
                QDir dir(QApplication::applicationDirPath());
 
341
                dir.cdUp();  // "Contents" directory
 
342
                QApplication::setLibraryPaths(QStringList(dir.absolutePath() + "/plugins"));
 
343
 
 
344
                //  Set the PATH environment variable to include @executable_path/../../..
 
345
                dir.cdUp();
 
346
                dir.cdUp();
 
347
                QString path(getenv("PATH"));
 
348
                path = dir.absolutePath() + ":" + path;
 
349
                setenv("PATH", path.toUtf8().constData(), 1);
 
350
        }
 
351
        #endif
 
352
 
 
353
        // Construct default settings; override with command line arguments.
 
354
        QSampler::Options options;
 
355
        if (!options.parse_args(app.arguments())) {
 
356
                app.quit();
 
357
                return 1;
 
358
        }
 
359
 
 
360
        // Have another instance running?
 
361
        if (app.setup()) {
 
362
                app.quit();
 
363
                return 2;
 
364
        }
 
365
 
 
366
        // Dark themes grayed/disabled color group fix...
 
367
        QPalette pal(app.palette());
 
368
        if (pal.base().color().value() < 0x7f) {
 
369
        #if QT_VERSION >= 0x050000
 
370
                const QColor& color = pal.window().color();
 
371
                const int iGroups = int(QPalette::Active | QPalette::Inactive) + 1;
 
372
                for (int i = 0; i < iGroups; ++i) {
 
373
                        const QPalette::ColorGroup group = QPalette::ColorGroup(i);
 
374
                        pal.setBrush(group, QPalette::Light,    color.lighter(150));
 
375
                        pal.setBrush(group, QPalette::Midlight, color.lighter(120));
 
376
                        pal.setBrush(group, QPalette::Dark,     color.darker(150));
 
377
                        pal.setBrush(group, QPalette::Mid,      color.darker(120));
 
378
                        pal.setBrush(group, QPalette::Shadow,   color.darker(200));
 
379
                }
 
380
        //      pal.setColor(QPalette::Disabled, QPalette::ButtonText, pal.mid().color());
 
381
        #endif
 
382
                pal.setColorGroup(QPalette::Disabled,
 
383
                        pal.windowText().color().darker(),
 
384
                        pal.button(),
 
385
                        pal.light(),
 
386
                        pal.dark(),
 
387
                        pal.mid(),
 
388
                        pal.text().color().darker(),
 
389
                        pal.text().color().lighter(),
 
390
                        pal.base(),
 
391
                        pal.window());
 
392
                app.setPalette(pal);
 
393
        }
 
394
 
 
395
        // Set default base font...
 
396
        if (options.iBaseFontSize > 0)
 
397
                app.setFont(QFont(app.font().family(), options.iBaseFontSize));
 
398
 
 
399
        // Construct, setup and show the main form.
 
400
        QSampler::MainForm w;
 
401
        w.setup(&options);
 
402
        w.show();
 
403
 
 
404
        // Settle this one as application main widget...
 
405
        app.setMainWidget(&w);
 
406
 
 
407
        // Register the quit signal/slot.
 
408
        // app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit()));
 
409
 
 
410
        return app.exec();
 
411
}
 
412
 
 
413
 
 
414
// end of qsampler.cpp