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// qsampler.cpp |
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// |
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/**************************************************************************** |
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Copyright (C) 2004-2010, rncbc aka Rui Nuno Capela. All rights reserved. |
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Copyright (C) 2007, 2008 Christian Schoenebeck |
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This program is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 2 |
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of the License, or (at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License along |
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with this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*****************************************************************************/ |
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#include "qsamplerAbout.h" |
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#include "qsamplerOptions.h" |
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#include "qsamplerMainForm.h" |
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#include <QApplication> |
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#include <QLibraryInfo> |
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#include <QTranslator> |
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#include <QLocale> |
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#if defined(__APPLE__) // Toshi Nagata 20080105 |
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#include <QDir> |
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#endif |
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#if QT_VERSION < 0x040300 |
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#define lighter(x) light(x) |
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#define darker(x) dark(x) |
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#endif |
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//------------------------------------------------------------------------- |
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// Singleton application instance stuff (Qt/X11 only atm.) |
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// |
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#if defined(Q_WS_X11) |
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#include <QX11Info> |
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#include <X11/Xatom.h> |
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#include <X11/Xlib.h> |
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#define QSAMPLER_XUNIQUE "qsamplerMainForm_xunique" |
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#endif |
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class qsamplerApplication : public QApplication |
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{ |
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public: |
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// Constructor. |
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qsamplerApplication(int& argc, char **argv) : QApplication(argc, argv), |
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m_pQtTranslator(0), m_pMyTranslator(0), m_pWidget(0) |
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{ |
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// Load translation support. |
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QLocale loc; |
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if (loc.language() != QLocale::C) { |
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// Try own Qt translation... |
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m_pQtTranslator = new QTranslator(this); |
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QString sLocName = "qt_" + loc.name(); |
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QString sLocPath = QLibraryInfo::location(QLibraryInfo::TranslationsPath); |
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if (m_pQtTranslator->load(sLocName, sLocPath)) { |
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QApplication::installTranslator(m_pQtTranslator); |
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} else { |
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#if WIN32 |
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sLocPath = QApplication::applicationDirPath() + "/share/locale"; |
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if (m_pQtTranslator->load(sLocName, sLocPath)) { |
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QApplication::installTranslator(m_pQtTranslator); |
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} else { |
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#endif |
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delete m_pQtTranslator; |
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m_pQtTranslator = 0; |
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#ifdef CONFIG_DEBUG |
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qWarning("Warning: no translation found for '%s' locale: %s/%s.qm", |
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loc.name().toUtf8().constData(), |
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sLocPath.toUtf8().constData(), |
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sLocName.toUtf8().constData()); |
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#endif |
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#if WIN32 |
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} |
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#endif |
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} |
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// Try own application translation... |
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m_pMyTranslator = new QTranslator(this); |
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sLocName = "qsampler_" + loc.name(); |
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if (m_pMyTranslator->load(sLocName, sLocPath)) { |
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QApplication::installTranslator(m_pMyTranslator); |
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} else { |
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#if WIN32 |
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sLocPath = QApplication::applicationDirPath() + "/share/locale"; |
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#else |
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sLocPath = CONFIG_PREFIX "/share/locale"; |
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#endif |
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if (m_pMyTranslator->load(sLocName, sLocPath)) { |
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QApplication::installTranslator(m_pMyTranslator); |
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} else { |
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delete m_pMyTranslator; |
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m_pMyTranslator = 0; |
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#ifdef CONFIG_DEBUG |
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qWarning("Warning: no translation found for '%s' locale: %s/%s.qm", |
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loc.name().toUtf8().constData(), |
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sLocPath.toUtf8().constData(), |
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sLocName.toUtf8().constData()); |
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#endif |
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} |
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} |
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} |
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#if defined(Q_WS_X11) |
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m_pDisplay = QX11Info::display(); |
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m_aUnique = XInternAtom(m_pDisplay, QSAMPLER_XUNIQUE, false); |
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XGrabServer(m_pDisplay); |
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m_wOwner = XGetSelectionOwner(m_pDisplay, m_aUnique); |
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XUngrabServer(m_pDisplay); |
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#endif |
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} |
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// Destructor. |
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~qsamplerApplication() |
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{ |
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if (m_pMyTranslator) delete m_pMyTranslator; |
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if (m_pQtTranslator) delete m_pQtTranslator; |
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} |
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// Main application widget accessors. |
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void setMainWidget(QWidget *pWidget) |
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{ |
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m_pWidget = pWidget; |
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#if defined(Q_WS_X11) |
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XGrabServer(m_pDisplay); |
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m_wOwner = m_pWidget->winId(); |
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XSetSelectionOwner(m_pDisplay, m_aUnique, m_wOwner, CurrentTime); |
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XUngrabServer(m_pDisplay); |
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#endif |
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} |
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QWidget *mainWidget() const { return m_pWidget; } |
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// Check if another instance is running, |
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// and raise its proper main widget... |
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bool setup() |
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{ |
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#if defined(Q_WS_X11) |
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if (m_wOwner != None) { |
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// First, notify any freedesktop.org WM |
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// that we're about to show the main widget... |
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Screen *pScreen = XDefaultScreenOfDisplay(m_pDisplay); |
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int iScreen = XScreenNumberOfScreen(pScreen); |
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XEvent ev; |
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memset(&ev, 0, sizeof(ev)); |
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ev.xclient.type = ClientMessage; |
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ev.xclient.display = m_pDisplay; |
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ev.xclient.window = m_wOwner; |
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ev.xclient.message_type = XInternAtom(m_pDisplay, "_NET_ACTIVE_WINDOW", false); |
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ev.xclient.format = 32; |
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ev.xclient.data.l[0] = 0; // Source indication. |
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ev.xclient.data.l[1] = 0; // Timestamp. |
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ev.xclient.data.l[2] = 0; // Requestor's currently active window (none) |
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ev.xclient.data.l[3] = 0; |
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ev.xclient.data.l[4] = 0; |
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XSelectInput(m_pDisplay, m_wOwner, StructureNotifyMask); |
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XSendEvent(m_pDisplay, RootWindow(m_pDisplay, iScreen), false, |
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(SubstructureNotifyMask | SubstructureRedirectMask), &ev); |
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XSync(m_pDisplay, false); |
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XRaiseWindow(m_pDisplay, m_wOwner); |
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// And then, let it get caught on destination |
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// by QApplication::x11EventFilter... |
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QByteArray value = QSAMPLER_XUNIQUE; |
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XChangeProperty( |
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m_pDisplay, |
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m_wOwner, |
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m_aUnique, |
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m_aUnique, 8, |
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PropModeReplace, |
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(unsigned char *) value.data(), |
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value.length()); |
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// Done. |
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return true; |
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} |
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#endif |
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return false; |
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} |
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#if defined(Q_WS_X11) |
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bool x11EventFilter(XEvent *pEv) |
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{ |
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if (m_pWidget && m_wOwner != None |
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&& pEv->type == PropertyNotify |
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&& pEv->xproperty.window == m_wOwner |
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&& pEv->xproperty.state == PropertyNewValue) { |
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// Always check whether our property-flag is still around... |
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Atom aType; |
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int iFormat = 0; |
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unsigned long iItems = 0; |
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unsigned long iAfter = 0; |
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unsigned char *pData = 0; |
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if (XGetWindowProperty( |
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m_pDisplay, |
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m_wOwner, |
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m_aUnique, |
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0, 1024, |
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false, |
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m_aUnique, |
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&aType, |
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&iFormat, |
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&iItems, |
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&iAfter, |
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&pData) == Success |
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&& aType == m_aUnique && iItems > 0 && iAfter == 0) { |
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// Avoid repeating it-self... |
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XDeleteProperty(m_pDisplay, m_wOwner, m_aUnique); |
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// Just make it always shows up fine... |
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m_pWidget->show(); |
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m_pWidget->raise(); |
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m_pWidget->activateWindow(); |
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} |
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// Free any left-overs... |
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if (iItems > 0 && pData) |
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XFree(pData); |
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} |
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return QApplication::x11EventFilter(pEv); |
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} |
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#endif |
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private: |
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// Translation support. |
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QTranslator *m_pQtTranslator; |
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QTranslator *m_pMyTranslator; |
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// Instance variables. |
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QWidget *m_pWidget; |
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#if defined(Q_WS_X11) |
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Display *m_pDisplay; |
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Atom m_aUnique; |
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Window m_wOwner; |
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#endif |
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}; |
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//------------------------------------------------------------------------- |
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// stacktrace - Signal crash handler. |
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// |
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#ifdef CONFIG_STACKTRACE |
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#if defined(__GNUC__) && defined(Q_OS_LINUX) |
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#include <stdio.h> |
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#include <errno.h> |
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#include <signal.h> |
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#include <sys/wait.h> |
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void stacktrace ( int signo ) |
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{ |
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pid_t pid; |
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int rc; |
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int status = 0; |
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char cmd[80]; |
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// Reinstall default handler; prevent race conditions... |
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signal(signo, SIG_DFL); |
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static const char *shell = "/bin/sh"; |
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static const char *format = "gdb -q --batch --pid=%d" |
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" --eval-command='thread apply all bt'"; |
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snprintf(cmd, sizeof(cmd), format, (int) getpid()); |
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pid = fork(); |
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// Fork failure! |
| 281 |
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if (pid < 0) |
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return; |
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// Fork child... |
| 285 |
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if (pid == 0) { |
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execl(shell, shell, "-c", cmd, NULL); |
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_exit(1); |
| 288 |
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return; |
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} |
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// Parent here: wait for child to terminate... |
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do { rc = waitpid(pid, &status, 0); } |
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while ((rc < 0) && (errno == EINTR)); |
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// Dispatch any logging, if any... |
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QApplication::processEvents(QEventLoop::AllEvents, 3000); |
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// Make sure everyone terminates... |
| 299 |
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kill(pid, SIGTERM); |
| 300 |
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_exit(1); |
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} |
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#endif |
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#endif |
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//------------------------------------------------------------------------- |
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// main - The main program trunk. |
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// |
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int main ( int argc, char **argv ) |
| 312 |
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{ |
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Q_INIT_RESOURCE(qsampler); |
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#ifdef CONFIG_STACKTRACE |
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#if defined(__GNUC__) && defined(Q_OS_LINUX) |
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signal(SIGILL, stacktrace); |
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signal(SIGFPE, stacktrace); |
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signal(SIGSEGV, stacktrace); |
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signal(SIGABRT, stacktrace); |
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signal(SIGBUS, stacktrace); |
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#endif |
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#endif |
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qsamplerApplication app(argc, argv); |
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#if defined(__APPLE__) // Toshi Nagata 20080105 |
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{ |
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// Set the plugin path to @exetutable_path/../plugins |
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QDir dir(QApplication::applicationDirPath()); |
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dir.cdUp(); // "Contents" directory |
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QApplication::setLibraryPaths(QStringList(dir.absolutePath() + "/plugins")); |
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// Set the PATH environment variable to include @executable_path/../../.. |
| 333 |
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dir.cdUp(); |
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dir.cdUp(); |
| 335 |
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QString path(getenv("PATH")); |
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path = dir.absolutePath() + ":" + path; |
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setenv("PATH", path.toUtf8().constData(), 1); |
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} |
| 339 |
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#endif |
| 340 |
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| 341 |
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// Construct default settings; override with command line arguments. |
| 342 |
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QSampler::Options options; |
| 343 |
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if (!options.parse_args(app.arguments())) { |
| 344 |
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app.quit(); |
| 345 |
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return 1; |
| 346 |
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} |
| 347 |
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| 348 |
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// Have another instance running? |
| 349 |
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if (app.setup()) { |
| 350 |
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app.quit(); |
| 351 |
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return 2; |
| 352 |
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} |
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| 354 |
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// Dark themes grayed/disabled color group fix... |
| 355 |
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QPalette pal(app.palette()); |
| 356 |
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if (pal.base().color().value() < 0x7f) { |
| 357 |
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pal.setColorGroup(QPalette::Disabled, |
| 358 |
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pal.windowText().color().darker(), |
| 359 |
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pal.button(), |
| 360 |
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pal.light(), |
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pal.dark(), |
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pal.mid(), |
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pal.text().color().darker(), |
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pal.text().color().lighter(), |
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pal.base(), |
| 366 |
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pal.window()); |
| 367 |
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app.setPalette(pal); |
| 368 |
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} |
| 369 |
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| 370 |
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// Set default base font... |
| 371 |
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int iBaseFontSize = app.font().pointSize(); |
| 372 |
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if (options.iBaseFontSize > 0) |
| 373 |
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iBaseFontSize = options.iBaseFontSize; |
| 374 |
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app.setFont(QFont(app.font().family(), iBaseFontSize)); |
| 375 |
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| 376 |
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// Construct, setup and show the main form. |
| 377 |
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QSampler::MainForm w; |
| 378 |
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w.setup(&options); |
| 379 |
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w.show(); |
| 380 |
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// Settle this one as application main widget... |
| 382 |
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app.setMainWidget(&w); |
| 383 |
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// Register the quit signal/slot. |
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// app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit())); |
| 386 |
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return app.exec(); |
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} |
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| 390 |
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| 391 |
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// end of qsampler.cpp |
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