diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsguieventdispatcher.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsguieventdispatcher.cpp | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsguieventdispatcher.cpp b/src/plugins/platforms/windows/qwindowsguieventdispatcher.cpp new file mode 100644 index 0000000000..fcfdd4fbdd --- /dev/null +++ b/src/plugins/platforms/windows/qwindowsguieventdispatcher.cpp @@ -0,0 +1,209 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (info@qt.nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwindowsguieventdispatcher.h" +#include "qwindowscontext.h" + +#include <QtGui/QWindowSystemInterface> + +#include <QtCore/QStack> +#include <QtCore/QDebug> + +#include <windowsx.h> + +QT_BEGIN_NAMESPACE + +/*! + \class QWindowsGuiEventDispatcher + \brief Event dispatcher for Windows + + Maintains a global stack storing the current event dispatcher and + its processing flags for access from the Windows procedure + qWindowsWndProc. Handling the Lighthouse gui events should be done + from within the qWindowsWndProc to ensure correct processing of messages. + + \ingroup qt-lighthouse-win +*/ + +typedef QStack<QWindowsGuiEventDispatcher::DispatchContext> DispatchContextStack; + +Q_GLOBAL_STATIC(DispatchContextStack, dispatchContextStack) + +QWindowsGuiEventDispatcher::QWindowsGuiEventDispatcher(QObject *parent) : + QEventDispatcherWin32(parent) +{ + setObjectName(QStringLiteral("QWindowsGuiEventDispatcher_0x") + QString::number((quintptr)this, 16)); + if (QWindowsContext::verboseEvents) + qDebug("%s %s", __FUNCTION__, qPrintable(objectName())); + dispatchContextStack()->push(DispatchContext(this, QEventLoop::AllEvents)); +} + +QWindowsGuiEventDispatcher::~QWindowsGuiEventDispatcher() +{ + if (QWindowsContext::verboseEvents) + qDebug("%s %s", __FUNCTION__, qPrintable(objectName())); + if (!dispatchContextStack()->isEmpty()) + dispatchContextStack()->pop(); +} + +bool QWindowsGuiEventDispatcher::processEvents(QEventLoop::ProcessEventsFlags flags) +{ + DispatchContextStack &stack = *dispatchContextStack(); + if (QWindowsContext::verboseEvents > 2) + qDebug(">%s %s %d", __FUNCTION__, qPrintable(objectName()), stack.size()); + stack.push(DispatchContext(this, flags)); + const bool rc = QEventDispatcherWin32::processEvents(flags); + stack.pop(); + if (QWindowsContext::verboseEvents > 2) + qDebug("<%s %s returns %d", __FUNCTION__, qPrintable(objectName()), rc); + return rc; +} + +QWindowsGuiEventDispatcher::DispatchContext QWindowsGuiEventDispatcher::currentDispatchContext() +{ + const DispatchContextStack &stack = *dispatchContextStack(); + if (stack.isEmpty()) { + qWarning("%s: No dispatch context", __FUNCTION__); + return DispatchContext(0, 0); + } + return stack.top(); +} + +// Helpers for printing debug output for WM_* messages. +struct MessageDebugEntry +{ + UINT message; + const char *description; + bool interesting; +}; + +static const MessageDebugEntry +messageDebugEntries[] = { + {WM_CREATE, "WM_CREATE", true}, + {WM_PAINT, "WM_PAINT", true}, + {WM_CLOSE, "WM_CLOSE", true}, + {WM_DESTROY, "WM_DESTROY", true}, + {WM_MOVE, "WM_MOVE", true}, + {WM_SIZE, "WM_SIZE", true}, + {WM_MOUSEACTIVATE,"WM_MOUSEACTIVATE", true}, + {WM_CHILDACTIVATE, "WM_CHILDACTIVATE", true}, + {WM_PARENTNOTIFY, "WM_PARENTNOTIFY", true}, + {WM_GETICON, "WM_GETICON", false}, + {WM_KEYDOWN, "WM_KEYDOWN", true}, + {WM_SYSKEYDOWN, "WM_SYSKEYDOWN", true}, + {WM_SYSCOMMAND, "WM_SYSCOMMAND", true}, + {WM_KEYUP, "WM_KEYUP", true}, + {WM_SYSKEYUP, "WM_SYSKEYUP", true}, + {WM_IME_CHAR, "WM_IMECHAR", true}, + {WM_IME_KEYDOWN, "WM_IMECHAR", true}, + {WM_CANCELMODE, "WM_CANCELMODE", true}, + {WM_CHAR, "WM_CHAR", true}, + {WM_DEADCHAR, "WM_DEADCHAR", true}, + {WM_ACTIVATE, "WM_ACTIVATE", true}, + {WM_GETMINMAXINFO, "WM_GETMINMAXINFO", true}, + {WM_SETFOCUS, "WM_SETFOCUS", true}, + {WM_KILLFOCUS, "WM_KILLFOCUS", true}, + {WM_ENABLE, "WM_ENABLE", true}, + {WM_SHOWWINDOW, "WM_SHOWWINDOW", true}, + {WM_GETMINMAXINFO, "WM_GETMINMAXINFO"}, + {WM_WINDOWPOSCHANGING, "WM_WINDOWPOSCHANGING", true}, + {WM_WINDOWPOSCHANGED, "WM_WINDOWPOSCHANGED", true}, + {WM_SETCURSOR, "WM_SETCURSOR", false}, + {WM_GETFONT, "WM_GETFONT", true}, + {WM_NCMOUSEMOVE, "WM_NCMOUSEMOVE", true}, + {WM_LBUTTONDOWN, "WM_LBUTTONDOWN", true}, + {WM_LBUTTONUP, "WM_LBUTTONUP", true}, + {WM_LBUTTONDBLCLK, "WM_LBUTTONDBLCLK", true}, + {WM_RBUTTONDOWN, "WM_RBUTTONDOWN", true}, + {WM_RBUTTONUP, "WM_RBUTTONUP", true}, + {WM_RBUTTONDBLCLK, "WM_RBUTTONDBLCLK", true}, + {WM_MBUTTONDOWN, "WM_MBUTTONDOWN", true}, + {WM_MBUTTONUP, "WM_MBUTTONUP", true}, + {WM_MBUTTONDBLCLK, "WM_MBUTTONDBLCLK", true}, + {WM_MOUSEWHEEL, "WM_MOUSEWHEEL", true}, + {WM_XBUTTONDOWN, "WM_XBUTTONDOWN", true}, + {WM_XBUTTONUP, "WM_XBUTTONUP", true}, + {WM_XBUTTONDBLCLK, "WM_XBUTTONDBLCLK", true}, + {WM_MOUSEHWHEEL, "WM_MOUSEHWHEEL", true}, + {WM_NCCREATE, "WM_NCCREATE", true}, + {WM_NCCALCSIZE, "WM_NCCALCSIZE", true}, + {WM_NCACTIVATE, "WM_NCACTIVATE", true}, + {WM_NCMOUSELEAVE, "WM_NCMOUSELEAVE", true}, + {WM_NCLBUTTONDOWN, "WM_NCLBUTTONDOWN", true}, + {WM_NCLBUTTONUP, "WM_NCLBUTTONUP", true}, + {WM_ACTIVATEAPP, "WM_ACTIVATEAPP", true}, + {WM_NCPAINT, "WM_NCPAINT", true}, + {WM_ERASEBKGND, "WM_ERASEBKGND", true}, + {WM_MOUSEMOVE, "WM_MOUSEMOVE", true}, + {WM_MOUSELEAVE, "WM_MOUSELEAVE", true}, + {WM_NCHITTEST, "WM_NCHITTEST", false}, + {WM_IME_SETCONTEXT, "WM_IME_SETCONTEXT", true}, + {WM_IME_NOTIFY, "WM_IME_NOTIFY", true}, +#if defined(WM_DWMNCRENDERINGCHANGED) + {WM_DWMNCRENDERINGCHANGED, "WM_DWMNCRENDERINGCHANGED", true}, +#endif + {WM_IME_SETCONTEXT, "WM_IME_SETCONTEXT", true}, + {WM_IME_NOTIFY, "WM_IME_NOTIFY", true}, + {WM_TOUCH, "WM_TOUCH", true}, + {WM_CHANGECBCHAIN, "WM_CHANGECBCHAIN", true}, + {WM_DRAWCLIPBOARD, "WM_DRAWCLIPBOARD", true}, + {WM_RENDERFORMAT, "WM_RENDERFORMAT", true}, + {WM_RENDERALLFORMATS, "WM_RENDERALLFORMATS", true}, + {WM_DESTROYCLIPBOARD, "WM_DESTROYCLIPBOARD", true}, + {WM_CAPTURECHANGED, "WM_CAPTURECHANGED", true} +}; + +static inline const MessageDebugEntry *messageDebugEntry(UINT msg) +{ + for (size_t i = 0; i < sizeof(messageDebugEntries)/sizeof(MessageDebugEntry); i++) + if (messageDebugEntries[i].message == msg) + return messageDebugEntries + i; + return 0; +} + +const char *QWindowsGuiEventDispatcher::windowsMessageName(UINT msg) +{ + if (const MessageDebugEntry *e = messageDebugEntry(msg)) + return e->description; + return "Unknown"; +} + +QT_END_NAMESPACE |