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diff --git a/doc/src/mac-differences.qdoc b/doc/src/mac-differences.qdoc new file mode 100644 index 0000000..573e62d --- /dev/null +++ b/doc/src/mac-differences.qdoc @@ -0,0 +1,339 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \page mac-differences.html + \title Qt for Mac OS X - Specific Issues + \brief A description of issues with Qt that are specific to Mac OS X. + \ingroup platform-notes + + This file outlines known issues and possible workarounds when + using Qt on Mac OS X. Contact Qt's technical support team if you find + additional issues which are not covered here. (See also the + document \l{qtmac-as-native.html} {Qt is Mac OS X Native}.) + + \tableofcontents + + \section1 GUI Applications + + Mac OS X handles most applications as "bundles". A bundle is a + directory structure that groups related files together (e.g., + widgets.app/). GUI applications in particular must be run from a + bundle or by using the open(1), because Mac OS X needs the bundle + to dispatch events correctly, as well as for accessing the menu + bar. + + If you are using older versions of GDB you must run with the full + path to the executable. Later versions allow you to pass the + bundle name on the command line. + + \section1 Painting + + Mac OS X always double buffers the screen so the + Qt::WA_PaintOnScreen attribute has no effect. Also it is + impossible to paint outside of a paint event so + Qt::WA_PaintOutsidePaintEvent has no effect either. + + \section1 Library Support + + \section2 Qt libraries as frameworks + + By default, Qt is built as a set of frameworks. Frameworks is the + Mac OS X "preferred" way of distributing libraries. There are + definite advantages to using them. See + \l{http://developer.apple.com/documentation/MacOSX/Conceptual/BPFrameworks/index.html} + {Apple's Framework Programming Guide} for more information. + + In general, this shouldn't be an issue because qmake takes care of + the specifics for you. The + \l{http://developer.apple.com/documentation/MacOSX/Conceptual/BPFrameworks/index.html} + {Framework Programming Guide} discusses issues to keep in mind + when choosing frameworks over the more typical, dynamic libraries. + However, one point to remember is: \bold {Frameworks always link + with "release" versions of libraries}. + + If you actually want to use a \e{debug} version of a Qt framework, + you must ensure that your application actually loads that debug + version. This is often done by using the DYLD_IMAGE_SUFFIX + environment variables, but that way often doesn't work so well. + Instead, you can temporarily swap your debug and release versions, + which is documented in + \l{http://developer.apple.com/technotes/tn2004/tn2124.html#SECJUSTONELIB} + {Apple's "Debugging Magic" technical note}. + + If you don't want to use frameworks, simply configure Qt with + \c{-no-framework}. + + \section2 Bundle-Based Libraries + + If you want to use some dynamic libraries in your Mac OS X + application bundle (the application directory), create a + subdirectory named "Frameworks" in the application bundle + directory and place your dynamic libraries there. The application + will find a dynamic library if it has the install name + \e{@executable_path/../Frameworks/libname.dylib}. + + If you use \c qmake and Makefiles, use the \c QMAKE_LFLAGS_SONAME setting: + + \snippet doc/src/snippets/code/doc_src_mac-differences.qdoc 0 + + Alternatively, you can modify the install name using the + install_name_tool(1) on the command line. See its manpage for more + information. + + Note that the \c DYLD_LIBRARY_PATH environment variable will + override these settings, and any other default paths, such as a + lookup of dynamic libraries inside \c /usr/lib and similar default + locations. + + \section2 Combining Libraries + + If you want to build a new dynamic library combining the Qt 4 + dynamic libraries, you need to introduce the \c{ld -r} flag. Then + relocation information is stored in the the output file, so that + this file could be the subject of another \c ld run. This is done + by setting the \c -r flag in the \c .pro file, and the \c LFLAGS + settings. + + \section2 Initialization Order + + dyld(1) calls global static initializers in the order they are + linked into your application. If a library links against Qt and + references globals in Qt (from global initializers in your own + library), be sure to link your application against Qt before + linking it against the library. Otherwise the result will be + undefined because Qt's global initializers have not been called + yet. + + \section1 Compile-Time Flags + + The follewing flags are helpful when you want to define Mac OS X specific + code: + + \list + + \o Q_OS_DARWIN is defined when Qt detects you are on a + Darwin-based system (including the Open Source version) + + \o Q_WS_MAC is defined when the Mac OS X GUI is present. + + \o QT_MAC_USE_COCOA is defined when Qt is built to use the Cocoa framework. + If it is not present, then Qt is using Carbon. + + \endlist + + A additional flag, Q_OS_MAC, is defined as a convenience whenever + Q_OS_DARWIN is defined. + + If you want to define code for specific versions of Mac OS X, use + the availability macros defined in /usr/include/AvailabilityMacros.h. + + See QSysInfo for information on runtime version checking. + + \section1 Mac OS X Native API Access + + \section2 Accessing the Bundle Path + + The Mac OS X application is actually a directory (ending with \c + .app). This directory contains sub-directories and files. It may + be useful to place items (e.g. plugins, online-documentation, + etc.) inside this bundle. You might then want to find out where + the bundle resides on the disk. The following code returns the + path of the application bundle: + + \snippet doc/src/snippets/code/doc_src_mac-differences.qdoc 1 + + Note: When OS X is set to use Japanese, a bug causes this sequence + to fail and return an empty string. Therefore, always test the + returned string. + + For more information about using the CFBundle API, see + \l{http://developer.apple.com/documentation/CoreFoundation/Reference/CFBundleRef/index.html} + {Apple's Developer Website}. + + \section2 Translating the Application Menu and Native Dialogs + + The items in the Application Menu will be merged correctly for + your localized application, but they will not show up translated + until you + \l{http://developer.apple.com/documentation/CoreFoundation/Conceptual/CFBundles/Concepts/BundleAnatomy.html#//apple_ref/doc/uid/20001119-105003-BAJFDAAG} + {add a localized resource folder} to the application bundle. + The main thing you need to do is create a file called + locversion.plist. Here is an example for Norwegian: + + \snippet doc/src/snippets/code/doc_src_mac-differences.qdoc 2 + + Now when you run the application with your preferred language set + to Norwegian, you should see menu items like "Avslutt" instead of + "Quit". + + \section1 User Interface + + \section2 Right-Mouse Clicks + + If you want to provide right-mouse click support for Mac OS X, use + the QContextMenuEvent class. This will map to a context menu + event, i.e., a menu that will display a pop-up selection. This is + the most common use of right-mouse clicks, and maps to a + control-click with the Mac OS X one-button mouse support. + + \section2 Menu Bar + + Qt will automatically detect your menu bars for you and turn + them into Mac native menu bars. Fitting this into your existing Qt + application will normally be automatic. However, if you have + special needs, the Qt implementation currently selects a menu + bar by starting at the active window + (i.e. QApplication::activeWindow()) and applying the following + tests: + + \list 1 + + \i If the window has a QMenuBar, then it is used. + + \i If the window is modal, then its menu bar is used. If no menu + bar is specified, then a default menu bar is used (as + documented below). + + \i If the window has no parent, then the default menu bar is used + (as documented below). + + \endlist + + These tests are followed all the way up the parent window chain + until one of the above rules is satisifed. If all else fails, a + default menu bar will be created. Note the default menu bar on + Qt is an empty menu bar. However, you can create a different + default menu bar by creating a parentless QMenuBar. The first one + created will be designated the default menu bar and will be used + whenever a default menu bar is needed. + + Note that using native menu bars introduces certain limitations on + Qt classes. See the \l{#Limitations}{list of limitations} below + for more information about these. + + \section2 Special Keys + + To provide the expected behavior for Qt applications on Mac OS X, + the Qt::Meta, Qt::MetaModifier, and Qt::META enum values + correspond to the Control keys on the standard Macintosh keyboard, + and the Qt::Control, Qt::ControlModifier, and Qt::CTRL enum values + correspond to the Command keys. + + \section1 Limitations + + \section2 Menu Actions + + \list + + \o Actions in a QMenu with accelerators that have more than one + keystroke (QKeySequence) will not display correctly, when the + QMenu is translated into a Mac native menu bar. The first key + will be displayed. However, the shortcut will still be + activated as on all other platforms. + + \o QMenu objects used in the native menu bar are not able to + handle Qt events via the normal event handlers. + For Carbon, you will have to install a Carbon event handler on + the menu bar in order to receive Carbon events that are similar + to \l{QMenu::}{showEvent()}, \l{QMenu::}{hideEvent()}, and + \l{QMenu::}{mouseMoveEvent()}. For Cocoa, you will have to + install a delegate on the menu itself to be notified of these + changes. Alternatively, consider using the QMenu::aboutToShow() + and QMenu::aboutToHide() signals to keep track of menu visibility; + these provide a solution that should work on all platforms + supported by Qt. + + \endlist + + \section2 Native Widgets + + Qt has support for sheets and drawers, represented in the + window flags by Qt::Sheet and Qt::Drawer respectiviely. Brushed + metal windows can also be created by using the + Qt::WA_MacMetalStyle window attribute. + +*/ + +/*! + \page qt-mac-cocoa-licensing.html + + \title Contributions to the Following QtGui Files: qapplication_cocoa_p.h, qapplication_mac.mm, qdesktopwidget_mac.mm qeventdispatcher_mac.mm qeventdispatcher_mac_p.h qmacincludes_mac.h qt_cocoa_helpers.mm qt_cocoa_helpers_p.h qwidget_mac.mm qsystemtrayicon_mac.mm + + \contentspage {Other Licenses Used in Qt}{Contents} + + \ingroup licensing + \brief License information for contributions by Apple, Inc. to specific parts of the Qt/Mac Cocoa port. + + \legalese + + Copyright (C) 2007-2008, Apple, Inc. + + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + \list + \o Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + \o Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + \o Neither the name of Apple, Inc. nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + \endlist + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + \endlegalese +*/ |