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// qsampler.cpp |
// qsampler.cpp |
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// |
// |
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/**************************************************************************** |
/**************************************************************************** |
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Copyright (C) 2004-2014, rncbc aka Rui Nuno Capela. All rights reserved. |
Copyright (C) 2004-2015, rncbc aka Rui Nuno Capela. All rights reserved. |
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Copyright (C) 2007, 2008 Christian Schoenebeck |
Copyright (C) 2007, 2008 Christian Schoenebeck |
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This program is free software; you can redistribute it and/or |
This program is free software; you can redistribute it and/or |
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// Singleton application instance stuff (Qt/X11 only atm.) |
// Singleton application instance stuff (Qt/X11 only atm.) |
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// |
// |
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#if QT_VERSION < 0x050000 |
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#if defined(Q_WS_X11) |
#if defined(Q_WS_X11) |
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#define CONFIG_X11 |
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#endif |
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#else |
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#if defined(QT_X11EXTRAS_LIB) |
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#define CONFIG_X11 |
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#endif |
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#endif |
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#ifdef CONFIG_X11 |
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#ifdef CONFIG_XUNIQUE |
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#include <QX11Info> |
#include <QX11Info> |
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#include <X11/Xatom.h> |
#include <X11/Xatom.h> |
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#include <X11/Xlib.h> |
#include <X11/Xlib.h> |
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#define QSAMPLER_XUNIQUE "qsamplerMainForm_xunique" |
#define QSAMPLER_XUNIQUE "qsamplerApplication" |
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#if QT_VERSION >= 0x050100 |
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#include <xcb/xcb.h> |
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#include <xcb/xproto.h> |
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#include <QAbstractNativeEventFilter> |
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class qsamplerApplication; |
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class qsamplerXcbEventFilter : public QAbstractNativeEventFilter |
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{ |
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public: |
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// Constructor. |
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qsamplerXcbEventFilter(qsamplerApplication *pApp) |
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: QAbstractNativeEventFilter(), m_pApp(pApp) {} |
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// XCB event filter (virtual processor). |
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bool nativeEventFilter(const QByteArray& eventType, void *message, long *); |
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private: |
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// Instance variable. |
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qsamplerApplication *m_pApp; |
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}; |
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#endif |
#endif |
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#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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class qsamplerApplication : public QApplication |
class qsamplerApplication : public QApplication |
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{ |
{ |
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public: |
public: |
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// Constructor. |
// Constructor. |
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qsamplerApplication(int& argc, char **argv) : QApplication(argc, argv), |
qsamplerApplication(int& argc, char **argv) : QApplication(argc, argv), |
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m_pQtTranslator(0), m_pMyTranslator(0), m_pWidget(0) |
m_pQtTranslator(0), m_pMyTranslator(0), m_pWidget(0) |
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{ |
{ |
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// Load translation support. |
// Load translation support. |
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QLocale loc; |
QLocale loc; |
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} |
} |
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} |
} |
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} |
} |
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#if defined(Q_WS_X11) |
#ifdef CONFIG_X11 |
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#ifdef CONFIG_XUNIQUE |
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// Instance uniqueness initialization... |
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m_pDisplay = QX11Info::display(); |
m_pDisplay = QX11Info::display(); |
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m_aUnique = XInternAtom(m_pDisplay, QSAMPLER_XUNIQUE, false); |
m_aUnique = XInternAtom(m_pDisplay, QSAMPLER_XUNIQUE, false); |
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XGrabServer(m_pDisplay); |
XGrabServer(m_pDisplay); |
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m_wOwner = XGetSelectionOwner(m_pDisplay, m_aUnique); |
m_wOwner = XGetSelectionOwner(m_pDisplay, m_aUnique); |
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XUngrabServer(m_pDisplay); |
XUngrabServer(m_pDisplay); |
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#if QT_VERSION >= 0x050100 |
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m_pXcbEventFilter = new qsamplerXcbEventFilter(this); |
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installNativeEventFilter(m_pXcbEventFilter); |
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#endif |
#endif |
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#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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} |
} |
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// Destructor. |
// Destructor. |
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~qsamplerApplication() |
~qsamplerApplication() |
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{ |
{ |
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#ifdef CONFIG_X11 |
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#ifdef CONFIG_XUNIQUE |
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#if QT_VERSION >= 0x050100 |
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removeNativeEventFilter(m_pXcbEventFilter); |
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delete m_pXcbEventFilter; |
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#endif |
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#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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if (m_pMyTranslator) delete m_pMyTranslator; |
if (m_pMyTranslator) delete m_pMyTranslator; |
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if (m_pQtTranslator) delete m_pQtTranslator; |
if (m_pQtTranslator) delete m_pQtTranslator; |
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} |
} |
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void setMainWidget(QWidget *pWidget) |
void setMainWidget(QWidget *pWidget) |
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{ |
{ |
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m_pWidget = pWidget; |
m_pWidget = pWidget; |
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#if defined(Q_WS_X11) |
#ifdef CONFIG_X11 |
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#ifdef CONFIG_XUNIQUE |
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XGrabServer(m_pDisplay); |
XGrabServer(m_pDisplay); |
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m_wOwner = m_pWidget->winId(); |
m_wOwner = m_pWidget->winId(); |
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XSetSelectionOwner(m_pDisplay, m_aUnique, m_wOwner, CurrentTime); |
XSetSelectionOwner(m_pDisplay, m_aUnique, m_wOwner, CurrentTime); |
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XUngrabServer(m_pDisplay); |
XUngrabServer(m_pDisplay); |
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#endif |
#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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} |
} |
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QWidget *mainWidget() const { return m_pWidget; } |
QWidget *mainWidget() const { return m_pWidget; } |
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// and raise its proper main widget... |
// and raise its proper main widget... |
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bool setup() |
bool setup() |
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{ |
{ |
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#if defined(Q_WS_X11) |
#ifdef CONFIG_X11 |
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#ifdef CONFIG_XUNIQUE |
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if (m_wOwner != None) { |
if (m_wOwner != None) { |
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// First, notify any freedesktop.org WM |
// First, notify any freedesktop.org WM |
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// that we're about to show the main widget... |
// that we're about to show the main widget... |
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XSync(m_pDisplay, false); |
XSync(m_pDisplay, false); |
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XRaiseWindow(m_pDisplay, m_wOwner); |
XRaiseWindow(m_pDisplay, m_wOwner); |
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// And then, let it get caught on destination |
// And then, let it get caught on destination |
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// by QApplication::x11EventFilter... |
// by QApplication::native/x11EventFilter... |
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QByteArray value = QSAMPLER_XUNIQUE; |
const QByteArray value = QSAMPLER_XUNIQUE; |
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XChangeProperty( |
XChangeProperty( |
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m_pDisplay, |
m_pDisplay, |
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m_wOwner, |
m_wOwner, |
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// Done. |
// Done. |
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return true; |
return true; |
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} |
} |
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#endif |
#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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return false; |
return false; |
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} |
} |
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#if defined(Q_WS_X11) |
#ifdef CONFIG_X11 |
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bool x11EventFilter(XEvent *pEv) |
#ifdef CONFIG_XUNIQUE |
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void x11PropertyNotify(Window w) |
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{ |
{ |
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if (m_pWidget && m_wOwner != None |
if (m_pWidget && m_wOwner == w) { |
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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... |
// Always check whether our property-flag is still around... |
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Atom aType; |
Atom aType; |
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int iFormat = 0; |
int iFormat = 0; |
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if (iItems > 0 && pData) |
if (iItems > 0 && pData) |
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XFree(pData); |
XFree(pData); |
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} |
} |
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} |
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#if QT_VERSION < 0x050000 |
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bool x11EventFilter(XEvent *pEv) |
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{ |
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if (pEv->type == PropertyNotify |
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&& pEv->xproperty.state == PropertyNewValue) |
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x11PropertyNotify(pEv->xproperty.window); |
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return QApplication::x11EventFilter(pEv); |
return QApplication::x11EventFilter(pEv); |
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} |
} |
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#endif |
#endif |
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#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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private: |
private: |
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// Instance variables. |
// Instance variables. |
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QWidget *m_pWidget; |
QWidget *m_pWidget; |
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#if defined(Q_WS_X11) |
#ifdef CONFIG_X11 |
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#ifdef CONFIG_XUNIQUE |
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Display *m_pDisplay; |
Display *m_pDisplay; |
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Atom m_aUnique; |
Atom m_aUnique; |
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Window m_wOwner; |
Window m_wOwner; |
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#if QT_VERSION >= 0x050100 |
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qsamplerXcbEventFilter *m_pXcbEventFilter; |
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#endif |
#endif |
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#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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}; |
}; |
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#ifdef CONFIG_X11 |
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#ifdef CONFIG_XUNIQUE |
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#if QT_VERSION >= 0x050100 |
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// XCB Event filter (virtual processor). |
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bool qsamplerXcbEventFilter::nativeEventFilter ( |
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const QByteArray& eventType, void *message, long * ) |
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{ |
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if (eventType == "xcb_generic_event_t") { |
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xcb_property_notify_event_t *pEv |
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= static_cast<xcb_property_notify_event_t *> (message); |
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if ((pEv->response_type & ~0x80) == XCB_PROPERTY_NOTIFY |
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&& pEv->state == XCB_PROPERTY_NEW_VALUE) |
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m_pApp->x11PropertyNotify(pEv->window); |
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} |
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return false; |
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} |
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#endif |
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#endif // CONFIG_XUNIQUE |
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#endif // CONFIG_X11 |
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//------------------------------------------------------------------------- |
//------------------------------------------------------------------------- |
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// stacktrace - Signal crash handler. |
// stacktrace - Signal crash handler. |
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// |
// |