/[svn]/qsampler/trunk/src/main.cpp
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Contents of /qsampler/trunk/src/main.cpp

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Revision 1788 - (show annotations) (download)
Sun Oct 26 15:44:42 2008 UTC (15 years, 5 months ago) by capela
File size: 8573 byte(s)
- Grayed/disabled palette color group fix for dark color themes.

1 // main.cpp
2 //
3 /****************************************************************************
4 Copyright (C) 2004-2008, 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
41 //-------------------------------------------------------------------------
42 // Singleton application instance stuff (Qt/X11 only atm.)
43 //
44
45 #if defined(Q_WS_X11)
46
47 #include <QX11Info>
48
49 #include <X11/Xatom.h>
50 #include <X11/Xlib.h>
51
52 #define QSAMPLER_XUNIQUE "qsamplerMainForm_xunique"
53
54 #endif
55
56 class qsamplerApplication : public QApplication
57 {
58 public:
59
60 // Constructor.
61 qsamplerApplication(int& argc, char **argv) : QApplication(argc, argv),
62 m_pQtTranslator(0), m_pMyTranslator(0), m_pWidget(0)
63 {
64 // Load translation support.
65 QLocale loc;
66 if (loc.language() != QLocale::C) {
67 // Try own Qt translation...
68 m_pQtTranslator = new QTranslator(this);
69 QString sLocName = "qt_" + loc.name();
70 QString sLocPath = QLibraryInfo::location(QLibraryInfo::TranslationsPath);
71 if (m_pQtTranslator->load(sLocName, sLocPath)) {
72 QApplication::installTranslator(m_pQtTranslator);
73 } else {
74 delete m_pQtTranslator;
75 m_pQtTranslator = 0;
76 #ifdef CONFIG_DEBUG
77 qWarning("Warning: no translation found for '%s' locale: %s/%s.qm",
78 loc.name().toUtf8().constData(),
79 sLocPath.toUtf8().constData(),
80 sLocName.toUtf8().constData());
81 #endif
82 }
83 // Try own application translation...
84 m_pMyTranslator = new QTranslator(this);
85 sLocName = "qsampler_" + loc.name();
86 if (m_pMyTranslator->load(sLocName, sLocPath)) {
87 QApplication::installTranslator(m_pMyTranslator);
88 } else {
89 sLocPath = CONFIG_PREFIX "/share/locale";
90 if (m_pMyTranslator->load(sLocName, sLocPath)) {
91 QApplication::installTranslator(m_pMyTranslator);
92 } else {
93 delete m_pMyTranslator;
94 m_pMyTranslator = 0;
95 #ifdef CONFIG_DEBUG
96 qWarning("Warning: no translation found for '%s' locale: %s/%s.qm",
97 loc.name().toUtf8().constData(),
98 sLocPath.toUtf8().constData(),
99 sLocName.toUtf8().constData());
100 #endif
101 }
102 }
103 }
104 #if defined(Q_WS_X11)
105 m_pDisplay = QX11Info::display();
106 m_aUnique = XInternAtom(m_pDisplay, QSAMPLER_XUNIQUE, false);
107 XGrabServer(m_pDisplay);
108 m_wOwner = XGetSelectionOwner(m_pDisplay, m_aUnique);
109 XUngrabServer(m_pDisplay);
110 #endif
111 }
112
113 // Destructor.
114 ~qsamplerApplication()
115 {
116 if (m_pMyTranslator) delete m_pMyTranslator;
117 if (m_pQtTranslator) delete m_pQtTranslator;
118 }
119
120 // Main application widget accessors.
121 void setMainWidget(QWidget *pWidget)
122 {
123 m_pWidget = pWidget;
124 #if defined(Q_WS_X11)
125 XGrabServer(m_pDisplay);
126 m_wOwner = m_pWidget->winId();
127 XSetSelectionOwner(m_pDisplay, m_aUnique, m_wOwner, CurrentTime);
128 XUngrabServer(m_pDisplay);
129 #endif
130 }
131
132 QWidget *mainWidget() const { return m_pWidget; }
133
134 // Check if another instance is running,
135 // and raise its proper main widget...
136 bool setup()
137 {
138 #if defined(Q_WS_X11)
139 if (m_wOwner != None) {
140 // First, notify any freedesktop.org WM
141 // that we're about to show the main widget...
142 Screen *pScreen = XDefaultScreenOfDisplay(m_pDisplay);
143 int iScreen = XScreenNumberOfScreen(pScreen);
144 XEvent ev;
145 memset(&ev, 0, sizeof(ev));
146 ev.xclient.type = ClientMessage;
147 ev.xclient.display = m_pDisplay;
148 ev.xclient.window = m_wOwner;
149 ev.xclient.message_type = XInternAtom(m_pDisplay, "_NET_ACTIVE_WINDOW", false);
150 ev.xclient.format = 32;
151 ev.xclient.data.l[0] = 0; // Source indication.
152 ev.xclient.data.l[1] = 0; // Timestamp.
153 ev.xclient.data.l[2] = 0; // Requestor's currently active window (none)
154 ev.xclient.data.l[3] = 0;
155 ev.xclient.data.l[4] = 0;
156 XSelectInput(m_pDisplay, m_wOwner, StructureNotifyMask);
157 XSendEvent(m_pDisplay, RootWindow(m_pDisplay, iScreen), false,
158 (SubstructureNotifyMask | SubstructureRedirectMask), &ev);
159 XSync(m_pDisplay, false);
160 XRaiseWindow(m_pDisplay, m_wOwner);
161 // And then, let it get caught on destination
162 // by QApplication::x11EventFilter...
163 QByteArray value = QSAMPLER_XUNIQUE;
164 XChangeProperty(
165 m_pDisplay,
166 m_wOwner,
167 m_aUnique,
168 m_aUnique, 8,
169 PropModeReplace,
170 (unsigned char *) value.data(),
171 value.length());
172 // Done.
173 return true;
174 }
175 #endif
176 return false;
177 }
178
179 #if defined(Q_WS_X11)
180 bool x11EventFilter(XEvent *pEv)
181 {
182 if (m_pWidget && m_wOwner != None
183 && pEv->type == PropertyNotify
184 && pEv->xproperty.window == m_wOwner
185 && pEv->xproperty.state == PropertyNewValue) {
186 // Always check whether our property-flag is still around...
187 Atom aType;
188 int iFormat = 0;
189 unsigned long iItems = 0;
190 unsigned long iAfter = 0;
191 unsigned char *pData = 0;
192 if (XGetWindowProperty(
193 m_pDisplay,
194 m_wOwner,
195 m_aUnique,
196 0, 1024,
197 false,
198 m_aUnique,
199 &aType,
200 &iFormat,
201 &iItems,
202 &iAfter,
203 &pData) == Success
204 && aType == m_aUnique && iItems > 0 && iAfter == 0) {
205 // Avoid repeating it-self...
206 XDeleteProperty(m_pDisplay, m_wOwner, m_aUnique);
207 // Just make it always shows up fine...
208 m_pWidget->show();
209 m_pWidget->raise();
210 m_pWidget->activateWindow();
211 }
212 // Free any left-overs...
213 if (iItems > 0 && pData)
214 XFree(pData);
215 }
216 return QApplication::x11EventFilter(pEv);
217 }
218 #endif
219
220 private:
221
222 // Translation support.
223 QTranslator *m_pQtTranslator;
224 QTranslator *m_pMyTranslator;
225
226 // Instance variables.
227 QWidget *m_pWidget;
228
229 #if defined(Q_WS_X11)
230 Display *m_pDisplay;
231 Atom m_aUnique;
232 Window m_wOwner;
233 #endif
234 };
235
236
237 //-------------------------------------------------------------------------
238 // main - The main program trunk.
239 //
240
241 int main ( int argc, char **argv )
242 {
243 Q_INIT_RESOURCE(qsampler);
244
245 qsamplerApplication app(argc, argv);
246
247 #if defined(__APPLE__) // Toshi Nagata 20080105
248 {
249 // Set the plugin path to @exetutable_path/../plugins
250 QDir dir(QApplication::applicationDirPath());
251 dir.cdUp(); // "Contents" directory
252 QApplication::setLibraryPaths(QStringList(dir.absolutePath() + "/plugins"));
253
254 // Set the PATH environment variable to include @executable_path/../../..
255 dir.cdUp();
256 dir.cdUp();
257 QString path(getenv("PATH"));
258 path = dir.absolutePath() + ":" + path;
259 setenv("PATH", path.toUtf8().constData(), 1);
260 }
261 #endif
262
263 // Construct default settings; override with command line arguments.
264 QSampler::Options options;
265 if (!options.parse_args(app.argc(), app.argv())) {
266 app.quit();
267 return 1;
268 }
269
270 // Have another instance running?
271 if (app.setup()) {
272 app.quit();
273 return 2;
274 }
275
276 // Dark themes grayed/disabled color group fix...
277 QPalette pal(app.palette());
278 if (pal.base().color().value() < 0x7f) {
279 pal.setColorGroup(QPalette::Disabled,
280 pal.windowText().color().darker(),
281 pal.button(),
282 pal.light(),
283 pal.dark(),
284 pal.mid(),
285 pal.text().color().darker(),
286 pal.text().color().lighter(),
287 pal.base(),
288 pal.window());
289 app.setPalette(pal);
290 }
291
292 // Set default base font...
293 int iBaseFontSize = app.font().pointSize();
294 if (options.iBaseFontSize > 0)
295 iBaseFontSize = options.iBaseFontSize;
296 app.setFont(QFont(app.font().family(), iBaseFontSize));
297
298 // Construct, setup and show the main form.
299 QSampler::MainForm w;
300 w.setup(&options);
301 w.show();
302
303 // Settle this one as application main widget...
304 app.setMainWidget(&w);
305
306 // Register the quit signal/slot.
307 // app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit()));
308
309 return app.exec();
310 }
311
312
313 // end of main.cpp

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