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 ) 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.   Animation 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 Fonts 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.   Internationalization 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.   MIME 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 Sound QT_NO_SOUND Playing audio files (QSound )   Scipting QT_NO_PROPERTIES Scripting of Qt-based applications.   Qt/Embedded-specific 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).   Networking 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 Painting/drawing QT_NO_COLORNAMES Color names such as "red", used by some QColor constructors 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 )   Widgets QT_NO_WIDGETS Disabling this disables all widgets except QWidget .   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 GUI Styles 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 Dialogs QT_NO_DIALOGS Disabling this disables all common dialogs QWidget . 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