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Get rid of QPA_XCB define

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Since the platform is selected at run time (e.g. xcb vs. Wayland), it
is not a good idea to decide at compile time what code is run. Another
example is on macOS, where having xcb libraries available will lead to
lauching the Xquartz whenever LyX is running.

With this patch, things are separated:
- the code is run when run-time platform is "xcb".
- the support code is compiled in when xcb header and libraries are
  available.

The cmake code is courtesy of Kornel Benko.

Fixes ticket #13086.

(cherry picked from commit 18c310a8cf)
(cherry picked from commit f1fddd86ef)
(cherry picked from commit 3bc4554e57)
(cherry picked from commit 8c14748e78)
This commit is contained in:
Jean-Marc Lasgouttes 2024-08-29 11:15:26 +02:00
parent 390f458122
commit d7e2ca377f
8 changed files with 37 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
CMakeLists.txt
View File

@ -805,7 +805,6 @@ if(LYX_USE_QT MATCHES "QT6|QT5")
Qt5_wrap_ui(${ARGN})
endmacro()
endif()
# set QPA_XCB if QT uses X11
find_package(${QtVal}Core CONFIG REQUIRED)
if (${QtVal}Core_FOUND)
find_package(${QtVal}Widgets CONFIG REQUIRED)
@ -1188,6 +1187,13 @@ get_data_destination(dest_data)
list(APPEND tmp_vi " LyX files dir: ${CMAKE_INSTALL_PREFIX}/${dest_data}")
string(REPLACE ";" "\\n" VERSION_INFO "${tmp_vi}")
# the result XCB_LIBRARY will be used in src/CMakeLists.txt and also in configuring config.h
find_library(XCB_LIBRARY NAMES xcb)
if (XCB_LIBRARY)
set(HAVE_LIBXCB 1 CACHE BOOL "" FORCE)
else()
set(HAVE_LIBXCB 0 CACHE BOOL "" FORCE)
endif()
configure_file(${LYX_CMAKE_DIR}/config.h.cmake ${TOP_BINARY_DIR}/config.h)
unset(opts)
unset(tmp_vi)

22
config/qt.m4
View File

@ -214,31 +214,15 @@ AC_DEFUN([QT_DO_IT_ALL],
fi;;
esac
dnl Specific support for X11 will be built if these are available
AC_CHECK_HEADERS([xcb/xcb.h])
AC_CHECK_LIB([xcb], [xcb_send_event])
save_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$save_CPPFLAGS $QT_CORE_INCLUDES"
AC_CHECK_HEADER(QtGui/qtgui-config.h,
[lyx_qt_config=QtGui/qtgui-config.h],
[lyx_qt_config=qconfig.h])
AC_MSG_CHECKING([whether Qt uses the X Window system])
if test x$USE_QT6 = xyes ; then
dnl FIXME: Check whether defining QPA_XCB makes sense with Qt6
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
[#include <$lyx_qt_config>]
[#if !defined(QT_FEATURE_xcb) || QT_FEATURE_xcb < 0]
[#error Fail]
[#endif]])],
[AC_MSG_RESULT(yes)
AC_DEFINE(QPA_XCB, 1, [Define if Qt uses the X Window System])],
[AC_MSG_RESULT(no)])
else
AC_EGREP_CPP(xcb,
[#include <$lyx_qt_config>
QT_QPA_DEFAULT_PLATFORM_NAME],
[AC_MSG_RESULT(yes)
AC_DEFINE(QPA_XCB, 1, [Define if Qt uses the X Window System])],
[AC_MSG_RESULT(no)])
fi
CPPFLAGS=$save_CPPFLAGS
QT_FIND_TOOL([QT_MOC], [moc])

7
development/cmake/ConfigureChecks.cmake
View File

@ -28,7 +28,7 @@ test_big_endian(WORDS_BIGENDIAN)
set(Include_Defines)
foreach(_h_file aspell.h aspell/aspell.h limits.h locale.h
stdlib.h sys/stat.h sys/time.h sys/types.h sys/utime.h
sys/socket.h unistd.h inttypes.h utime.h string.h argz.h)
sys/socket.h unistd.h inttypes.h utime.h string.h argz.h xcb/xcb.h)
string(REGEX REPLACE "[/\\.]" "_" _hf ${_h_file})
string(TOUPPER ${_hf} _HF)
check_include_files(${_h_file} HAVE_${_HF})
@ -275,7 +275,6 @@ else()
endif()
endif()
set(QPA_XCB)
set(HAVE_QT5_X11_EXTRAS)
set(HAVE_QT6_X11_EXTRAS)
if (LYX_USE_QT MATCHES "QT5|QT6")
@ -312,10 +311,6 @@ if (LYX_USE_QT MATCHES "QT5|QT6")
}
"
QT_USES_X11)
if(QT_USES_X11 AND NOT LYX_USE_QT MATCHES "QT6")
set(QPA_XCB ${QT_USES_X11})
message(STATUS "Found QPA_XCB = ${QPA_XCB}")
endif()
endif()
if (${QtVal}X11Extras_FOUND)

8
development/cmake/config.h.cmake
View File

@ -64,9 +64,6 @@
#cmakedefine Z_PREFIX 1
// Defined if QT=QT5 uses X11
#cmakedefine QPA_XCB 1
// Define if you have the Qt5X11Extras module
#cmakedefine HAVE_QT5_X11_EXTRAS 1
@ -91,10 +88,13 @@ ${Include_used_spellchecker}
// Define to 1 if enchant is version 2.x at least
#cmakedefine HAVE_ENCHANT2 1
#endif // config.h guard
// Define to 1 if have xcb library
#cmakedefine HAVE_LIBXCB ${HAVE_LIBXCB}
#define MYTHES_H_LOCATION <${MYTHES_DIR}/mythes.hxx>
#endif // config.h guard
// Unguarded cleanup of global namespace:
#ifdef ColorMode

1
src/CMakeLists.txt
View File

@ -148,7 +148,6 @@ if(QT_USES_X11)
find_package(X11 REQUIRED)
target_link_libraries(${_lyx} ${X11_X11_LIB}) # we need it because we use XSendEvent
if(HAVE_QT5_X11_EXTRAS)
find_library(XCB_LIBRARY NAMES xcb)
if (XCB_LIBRARY MATCHES "NOTFOUND")
message(FATAL_ERROR "Need xcb library to use with QT5_X11_EXTRAS")
endif()

28
src/frontends/qt/GuiApplication.cpp
View File

@ -121,7 +121,7 @@
#include <QThreadPool>
#include <QWidget>
#if defined(QPA_XCB)
#ifdef HAVE_XCB_XCB_H
#include <xcb/xcb.h>
#ifdef HAVE_QT5_X11_EXTRAS
#include <QtX11Extras/QX11Info>
@ -1157,10 +1157,14 @@ GuiApplication::GuiApplication(int & argc, char ** argv)
// Install Qt native translator for GUI elements.
installTranslator(&d->qt_trans_);
#ifdef QPA_XCB
// Enable reception of XCB events.
installNativeEventFilter(this);
if (platformName() == "xcb") {
#if defined(HAVE_XCB_XCB_H) && defined(HAVE_LIBXCB)
// Enable reception of XCB events.
installNativeEventFilter(this);
#else
LYXERR0("Warning: X11 support is incomplete in this LyX binary.");
#endif
}
// FIXME: quitOnLastWindowClosed is true by default. We should have a
// lyxrc setting for this in order to let the application stay resident.
@ -1181,13 +1185,13 @@ GuiApplication::GuiApplication(int & argc, char ** argv)
this, SLOT(onApplicationStateChanged(Qt::ApplicationState)));
#endif
#if defined(QPA_XCB)
// doubleClickInterval() is 400 ms on X11 which is just too long.
// On Windows and Mac OS X, the operating system's value is used.
// On Microsoft Windows, calling this function sets the double
// click interval for all applications. So we don't!
QApplication::setDoubleClickInterval(300);
#endif
if (platformName() == "xcb") {
// doubleClickInterval() is 400 ms on X11 which is just too long.
// On Windows and Mac OS X, the operating system's value is used.
// On Microsoft Windows, calling this function sets the double
// click interval for all applications. So we don't!
QApplication::setDoubleClickInterval(300);
}
connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
@ -3477,7 +3481,7 @@ bool GuiApplication::longOperationStarted() {
//
// X11 specific stuff goes here...
#if defined(QPA_XCB)
#if defined(HAVE_XCB_XCB_H) && defined(HAVE_LIBXCB)
bool GuiApplication::nativeEventFilter(const QByteArray & eventType,
void * message, QINTPTR *)
{

6
src/frontends/qt/GuiApplication.h
View File

@ -20,7 +20,7 @@
#include <QApplication>
#include <QList>
#ifdef QPA_XCB
#if defined(HAVE_XCB_XCB_H) && defined(HAVE_LIBXCB)
#include <QAbstractNativeEventFilter>
#endif
@ -53,7 +53,7 @@ There should be only one instance of this class. No Qt object
initialisation should be done before the instantiation of this class.
*/
class GuiApplication : public QApplication, public Application
#ifdef QPA_XCB
#if defined(HAVE_XCB_XCB_H) && defined(HAVE_LIBXCB)
, public QAbstractNativeEventFilter
#endif
{
@ -120,7 +120,7 @@ public:
//@{
bool notify(QObject * receiver, QEvent * event) override;
void commitData(QSessionManager & sm);
#if defined(QPA_XCB)
#if defined(HAVE_XCB_XCB_H) && defined(HAVE_LIBXCB)
#if (QT_VERSION < 0x060000)
#define QINTPTR long
#else

3
status.24x
View File

@ -59,6 +59,9 @@ What's new
- Make -geometry command-line option work on all platforms.
- Fix macOS bug, where XQuartz application would be launched for no
reason (bug #13086).
* DOCUMENTATION AND LOCALIZATION