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Re-enable QWindowsMimeMetafile with Qt6

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Qt 6.5.0 has dropped support for the QWindowsMime class
in favor of a new QWindowsMimeConverter class. They say:
  "If you have implementations of QWindowsMime or QMacMime in Qt 5,
   then those will almost directly translate to the new APIs but
   require less boiler-plate code to register the converters with Qt."
This may be true, but in practice they break binary compatibility with
previous versions. If you used the QWindowsMime class until Qt 6.4 by
using boiler-plate code to register the converters with Qt, you now
need to modify the sources and recompile. Fantastic!
This commit is contained in:
Enrico Forestieri 2023-04-28 23:34:01 +02:00
parent 4dc410902d
commit 17b24cf480
1 changed files with 9 additions and 3 deletions
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12
src/frontends/qt/GuiApplication.cpp
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@ -130,6 +130,11 @@
#if (QT_VERSION >= 0x050400)
#if defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)
#if (QT_VERSION >= 0x060000)
#if (QT_VERSION >= 0x060500)
#include <QtGui/QWindowsMimeConverter>
#define QWINDOWSMIME QWindowsMimeConverter
#define QVARIANTTYPE QMetaType
#else
#include <QtGui/private/qguiapplication_p.h>
#include <QtGui/private/qwindowsmime_p.h>
#include <QtGui/qpa/qplatformintegration.h>
@ -137,6 +142,7 @@
#define QVARIANTTYPE QMetaType
using QWindowsMime = QNativeInterface::Private::QWindowsMime;
using QWindowsApplication = QNativeInterface::Private::QWindowsApplication;
#endif
#else
#include <QWinMime>
#define QWINDOWSMIME QWinMime
@ -1031,7 +1037,7 @@ struct GuiApplication::Private
#if defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)
/// WMF Mime handler for Windows clipboard.
wmf_mime_ = new QWindowsMimeMetafile;
#if (QT_VERSION >= 0x060000)
#if (QT_VERSION >= 0x060000 && QT_VERSION < 0x060500)
win_app_ = dynamic_cast<QWindowsApplication *>
(QGuiApplicationPrivate::platformIntegration());
win_app_->registerMime(wmf_mime_);
@ -1041,7 +1047,7 @@ struct GuiApplication::Private
initKeySequences(&theTopLevelKeymap());
}
#if (QT_VERSION >= 0x060000)
#if (QT_VERSION >= 0x060000 && QT_VERSION < 0x060500)
#if defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)
~Private()
{
@ -1120,7 +1126,7 @@ struct GuiApplication::Private
#if defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)
/// WMF Mime handler for Windows clipboard.
QWindowsMimeMetafile * wmf_mime_;
#if (QT_VERSION >= 0x060000)
#if (QT_VERSION >= 0x060000 && QT_VERSION < 0x060500)
QWindowsApplication * win_app_;
#endif
#endif