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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 qtmac-as-native.html \title Qt is Mac OS X Native \brief An explanation of Qt's native features on Mac OS X. \ingroup platform-notes This document explains what makes an application native on Mac OS X. It shows the areas where Qt is compliant, and the grey areas where compliance is more questionable. (See also the document \l{mac-differences.html}{Qt for Mac OS X - Specific Issues}.) Normally when referring to a native Mac application, one really means an application that talks directly to the underlying window system, rather than one that uses some intermediary (for example Apple's X11 server, or a web browser). Qt applications run as first class citizens, just like Cocoa, and Carbon applications. In fact, we use Carbon and HIView internally to communicate with OS X. When an application is running as a first class citizen, it means that it can interact with specific components of the Mac OS X experience: \tableofcontents \section1 The Global Menu Bar Qt does this via the QMenuBar abstraction. Mac users expect to have a menu bar at the top of the screen and Qt honors this. Additionally, users expect certain conventions to be respected, for example the application menu should contain About, Preferences, Quit, etc. Qt handles this automatically, although it does not provide a means of interacting directly with the application menu. (By doing this automatically, Qt makes it easier to port Qt applications to other platforms.) \section1 Aqua This is a critical piece of Mac OS X (documentation can be found at \l{http://developer.apple.com/documentation/UserExperience/Conceptual/OSXHIGuidelines/index.html}). It is a huge topic, but the most important guidelines for GUI design are probably these: \list \i \e{Aqua look} As with Cocoa/Carbon, Qt provides widgets that look like those described in the Human Interface Descriptions. Qt's widgets use Appearance Manager on Mac OS X 10.2 and the new HIThemes on Mac OS X 10.3 and higher to implement the look, in other words we use Apple's own API's for doing the rendering. \i \e{Aqua feel} This is a bit more subjective, but certainly Qt strives to provide the same feel as any Mac OS X application (and we consider situations where it doesn't achieve this to be bugs). Of course Qt has other concerns to bear in mind, especially remaining cross-platform. Some "baggage" that Qt carries is in an effort to provide a widget on a platform for which an equivelant doesn't exist, or so that a single API can be used to do something, even if the API doesn't make entire sense for a specific widget. \i \e{Aqua guides} This is the most subjective, but there are many suggestions and guidelines in the Aqua style guidelines. This is the area where Qt is of least assistance. The decisions that must be made to conform (widget sizes, widget layouts with respect to other widgets, window margins, placement of OK and Cancel, etc) must be made based on the user experience demanded by your application. If your user base is small or mostly comes from the Windows or Unix worlds, these are minor issues much less important than trying to make a mass market product. Qt for Mac OS X is fully API compatible with Qt for Windows and X11, but Mac OS X is a significantly different platform to Windows and some special considerations must be made based on your audience. \endlist \section1 Dock Interaction with the dock is possible. The icon can be set by calling QWidget::setWindowIcon() on the main window in your application. The setWindowIcon() call can be made as often as necessary, providing an icon that can be easily updated. \omit It is also possible to set a QMenu as the dock menu through the use of the qt_mac_set_dock_menu() function. \endomit \section1 Accessiblity Although many users never use this, some users will only interact with your applications via assistive devices. With Qt the aim is to make this automatic in your application so that it conforms to accepted practice on its platform. Qt uses Apple's accessibility framework to provide access to users with diabilities. \section1 Development Tools Mac OS X developers expect a certain level of interopability between their development toolkit and the platform's developer tools (for example Visual Studio, gmake, etc). Qt supports both Unix style Makefiles, and ProjectBuilder/Xcode project files by using the \l qmake tool. For example: \snippet doc/src/snippets/code/doc_src_qtmac-as-native.qdoc 0 will generate an Xcode project file from project.pro. With \l qmake you do not have to worry about rules for Qt's preprocessors (\l moc and \l uic) since \l qmake automatically handles them and ensures that everything necessary is linked into your application. Qt does not entirely interact with the development environment (for example plugins to set a file to "mocable" from within the Xcode user interface). Nokia is actively working on improving Qt's interoperability with various IDEs. */