Qt特征定义文件（裁剪定制Qt库）

Qt特征定义文件（裁剪定制Qt库）

Qt源码目录下src/tools/qfeatures.h文件包含了src/tools/qconfig.h，因此修改qconfig.h，就可以编译自己想要的特征，即qt所有功能的一个子集。

需要注意的是这样的修改只有Qt/Embedded平台能支持，因为嵌入式环境中，减小qt库的大小很重要，并且应用配置常常是固定的。

config.h文件定义的是需要去除的特征。有些特征依赖于其他的特征，这些依赖关系在qfeatures.h可以看到。

可选项如下:

Macro Disables Set automatically by Images (QImageIO) Animation Fonts Internationalization MIME Sound Scipting Qt/Embedded-specific Networking Painting/drawing Widgets GUI Styles Dialogs

QT_NO_IMAGEIO_BMP	The Microsoft Bitmap image file format.
QT_NO_IMAGEIO_PPM	The Portable Pixmap image file format.
QT_NO_IMAGEIO_XBM	The X11 Bitmap image file format.
QT_NO_IMAGEIO_XPM	The X11 Pixmap image file format.
QT_NO_IMAGEIO_PNG	The Portable Network Graphics image file format.
QT_NO_ASYNC_IO	Asynchronous I/O (QAsyncIO)
QT_NO_ASYNC_IMAGE_IO	Asynchronous Image I/O and GIF image support (QImageDecoder, ...)
QT_NO_MOVIE	Animation support (QMovie)	QT_NO_ASYNC_IO, QT_NO_ASYNC_IMAGE_IO
QT_NO_TRUETYPE	TrueType (TTF and TTC) font file format, only used by Qt/Embedded.
QT_NO_BDF	Bitmap Distribution Format (BDF) font file format, only used by Qt/Embedded.
QT_NO_FONTDATABASE	Font database.
QT_NO_I18N	Conversions between Unicode and 8-bit encodings.
QT_NO_UNICODETABLES	Large tables defining such things as upper and lowercase conversions for all Unicode characters.
QT_NO_MIME	Multipurpose Internet Mail Extensions, an internet standard for encoding and tagging typed data (eg. text, images, colors) (QMimeSource)
QT_NO_RICHTEXT	HTML-like text (QStyleSheet,QLabel)	QT_NO_MIME
QT_NO_DRAGANDDROP	Drag-and-drop data between applications (QDragObject)	QT_NO_MIME
QT_NO_CLIPBOARD	Cut-and-paste data between applications (QClipboard)	QT_NO_MIME
QT_NO_SOUND	Playing audio files (QSound)
QT_NO_PROPERTIES	Scripting of Qt-based applications.
QT_NO_QWS_CURSOR	The cursor sprite on Qt/Embedded. Pen-operated devices would not normally need this feature.
QT_NO_QWS_DEPTH_8GRAYSCALE	8 bits per pixel: 256 levels of gray. Incompatible with QWS_DEPTH_8.
QT_NO_QWS_DEPTH_8	8 bits per pixel: 216-color cube with 40 auxiliary colors. Incompatible with QWS_DEPTH_8GRAYSCALE.
QT_NO_QWS_DEPTH_15	15 bits per pixel: 32 levels for each of red, green and blue.
QT_NO_QWS_DEPTH_16	16 bits per pixel: 64 levels of green, 32 levels for red and for blue.
QT_NO_QWS_DEPTH_32	32 bits per pixel: 256 levels for each of red, green and blue.
QT_NO_QWS_MACH64	Mach64 accelerated driver (demonstration only).
QT_NO_QWS_VFB	Virtual framebuffer running on X11 (see reference documentation).
QT_NO_NETWORKPROTOCOL	Abstract multi-protocol data retrieval, with local file retrieval included (QNetworkProtocol)
QT_NO_NETWORKPROTOCOL_FTP	FTP-protocol data retrieval.	QT_NO_NETWORKPROTOCOL
QT_NO_NETWORKPROTOCOL_HTTP	HTTP-protocol data retrieval.	QT_NO_NETWORKPROTOCOL
QT_NO_COLORNAMES	Color names such as "red", used by someQColorconstructors and by some HTML documents (QColor,QStyleSheet)
QT_NO_TRANSFORMATIONS	Used by a number of classes in Qt. With this, rotation and scaling are possible. Without it, only co-ordinate translation (QWMatrix)
QT_NO_PSPRINTER	PostScript printer support.
QT_NO_PRINTER	Printer support (QPrinter)	QT_NO_PSPRINTER (Unix only)
QT_NO_PICTURE	Save Qt drawing commands to a files (QPicture)
QT_NO_WIDGETS	Disabling this disables all widgets exceptQWidget.
QT_NO_TEXTVIEW	HTML document viewing (QTextView)	QT_NO_WIDGETS, QT_NO_RICHTEXT
QT_NO_TEXTBROWSER	HTML document browsing (QTextBrowser)	QT_NO_TEXTVIEW
QT_NO_ICONVIEW	Labelled icons (QIconView)	QT_NO_WIDGETS, QT_NO_DRAGANDDROP
QT_NO_LISTVIEW	Lists of information (QListView)	QT_NO_WIDGETS
QT_NO_CANVAS	Object canvas (QCanvas)	QT_NO_WIDGETS
QT_NO_DIAL	Value control (QDial)	QT_NO_WIDGETS
QT_NO_WORKSPACE	Multi-document interface (QWorkspace)	QT_NO_WIDGETS
QT_NO_LCDNUMBER	LCD-like number display (QLCDNumber)	QT_NO_WIDGETS
QT_NO_STYLE_WINDOWS	Microsoft Windows style (QWindowsStyle)	QT_NO_WIDGETS
QT_NO_STYLE_MOTIF	OSF Motif style (QMotifStyle)	QT_NO_WIDGETS
QT_NO_STYLE_CDE	Open Group CDE style (QCDEStyle)	QT_NO_STYLE_MOTIF
QT_NO_STYLE_AQUA	MacOS X style (QAquaStyle)
QT_NO_STYLE_PLATINUM	MacOS 9 style (QPlatinumStyle)	QT_NO_WIDGETS
QT_NO_STYLE_SGI	SGI style (QSGIStyle)	QT_NO_STYLE_MOTIF
QT_NO_DIALOGS	Disabling this disables all common dialogsQWidget.	QT_NO_WIDGETS
QT_NO_FILEDIALOG	The file selection dialog (QFileDialog)	QT_NO_DIALOGS, QT_NO_NETWORKPROTOCOL, QT_NO_LISTVIEW
QT_NO_FONTDIALOG	The font selection dialog (QFontDialog)	QT_NO_DIALOGS, QT_NO_FONTDATABASE
QT_NO_COLORDIALOG	The color selection dialog (QColorDialog)	QT_NO_DIALOGS
QT_NO_INPUTDIALOG	Text input dialog (QInputDialog)	QT_NO_DIALOGS
QT_NO_MESSAGEBOX	Message/prompting dialog (QMessageBox)	QT_NO_DIALOGS
QT_NO_PROGRESSDIALOG	Long-computation progress dialog (QProgressDialog)	QT_NO_DIALOGS
QT_NO_TABDIALOG	Tabbed-pages dialog (QTabDialog)	QT_NO_DIALOGS
QT_NO_WIZARD	Multi-step dialog (QWizard)	QT_NO_DIALOGS