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- QAccel类
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- qdatabrowser.h Include File
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- QDataStream类
- qdatastream.h包含文件
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- qdial.h Include File
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- QDialog类
- qdialog.h包含文件
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- qdirectpainter_qws.h Include File
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- qdir.h包含文件
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- qdockarea.h包含文件
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- qdockwindow.h包含文件
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- QDomAttr Class
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- qdom.h Include File
- QDomImplementation Class
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- QDomNamedNodeMap Class
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- QDomNode Class
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- QDomNotation Class
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- QDomText Class
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- QDoubleValidator类
- QDoubleValidator成员列表
- QDragEnterEvent Class
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- QDragMoveEvent Class
- QDragMoveEvent Member List
- QDragObject Class
- qdragobject.h Include File
- QDragObject Member List
- qdrawutil.h Include File
- QDropEvent Class
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- QDropSite Class
- qdropsite.h Include File
- QEditorFactory Class
- qeditorfactory.h Include File
- QEditorFactory Member List
- QEmbed - File and Image Embedder
- QErrorMessage类
- qerrormessage.h包含文件
- QErrorMessage成员列表
- QEucJpCodec Class
- qeucjpcodec.h Include File
- QEucJpCodec Member List
- QEucKrCodec Class
- qeuckrcodec.h Include File
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- QEvent类
- qevent.h包含文件
- QEvent成员列表
- Font Displayer
- QFile类
- QFileDialog类
- qfiledialog.h包含文件
- QFileDialog成员列表
- qfile.h包含文件
- QFileIconProvider Class
- QFileIconProvider Member List
- QFileInfo Class
- qfileinfo.h Include File
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- QFile成员列表
- QFilePreview Class
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- QFocusData Class
- qfocusdata.h Include File
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- QFocusEvent Class
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- QFont Class
- QFontDatabase Class
- qfontdatabase.h Include File
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- QFontDialog类
- qfontdialog.h包含文件
- QFontDialog成员列表
- QFont Examples
- qfont.h Include File
- QFontInfo Class
- qfontinfo.h Include File
- QFontInfo Member List
- QFontManager Class
- qfontmanager_qws.h Include File
- QFontManager Member List
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- QFontMetrics Class
- qfontmetrics.h Include File
- QFontMetrics Member List
- QFrame类
- qframe.h包含文件
- QFrame成员列表
- QFtp类
- qftp.h包含文件
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- QGb18030Codec Class
- qgb18030codec.h Include File
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- QGbkCodec Class
- QGbkCodec Member List
- qgfx_qws.h Include File
- QGL Class
- QGLayoutIterator Class
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- QGLColormap Class
- qglcolormap.h Include File
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- QGLContext Class
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- QGLFormat Class
- QGLFormat Member List
- qgl.h Include File
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- qglobal.h Include File
- QGLWidget Class
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- QGrid类
- qgrid.h包含文件
- QGridLayout Class
- QGridLayout Member List
- QGrid成员列表
- QGridView Class
- qgridview.h Include File
- QGridView Member List
- QGroupBox类
- qgroupbox.h包含文件
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- QGuardedPtr类
- qguardedptr.h包含文件
- QGuardedPtr成员列表
- QHBox Class
- qhbox.h Include File
- QHBoxLayout Class
- QHBoxLayout Member List
- QHBox Member List
- QHButtonGroup类
- qhbuttongroup.h包含文件
- QHButtonGroup成员列表
- QHeader类
- qheader.h包含文件
- QHeader成员列表
- QHebrewCodec Class
- QHebrewCodec Member List
- QHGroupBox类
- qhgroupbox.h包含文件
- QHGroupBox成员列表
- QHideEvent Class
- QHideEvent Member List
- QHostAddress Class
- qhostaddress.h Include File
- QHostAddress Member List
- QHttp Class
- qhttp.h Include File
- QHttp Member List
- QIconDrag Class
- QIconDragItem Class
- QIconDragItem Member List
- QIconDrag Member List
- QIconSet Class
- qiconset.h Include File
- QIconSet Member List
- QIconView Class
- qiconview.h Include File
- QIconViewItem Class
- QIconViewItem Member List
- QIconView Member List
- QImage Class
- QImageConsumer Class
- QImageConsumer Member List
- QImageDecoder Class
- QImageDecoder Member List
- QImageDrag Class
- QImageDrag Member List
- QImageFormat Class
- QImageFormat Member List
- QImageFormatPlugin Class
- qimageformatplugin.h Include File
- QImageFormatPlugin Member List
- QImageFormatType Class
- QImageFormatType Member List
- qimage.h Include File
- QImageIO Class
- QImageIO Member List
- QImage Member List
- QIMEvent Class
- QIMEvent Member List
- QInputDialog类
- qinputdialog.h包含文件
- QInputDialog成员列表
- QIntCache Class
- qintcache.h Include File
- QIntCacheIterator Class
- QIntCacheIterator Member List
- QIntCache Member List
- QIntDict Class
- qintdict.h Include File
- QIntDictIterator Class
- QIntDictIterator Member List
- QIntDict Member List
- QIntValidator类
- QIntValidator成员列表
- QIODevice类
- qiodevice.h包含文件
- QIODevice成员列表
- QIODeviceSource Class
- QJisCodec Class
- qjiscodec.h Include File
- QJisCodec Member List
- qkeyboard_qws.h Include File
- QKeyEvent Class
- QKeyEvent Member List
- QKeySequence Class
- qkeysequence.h Include File
- QKeySequence Member List
- QLabel Class
- qlabel.h Include File
- QLabel Member List
- QLayout Class
- qlayout.h Include File
- QLayoutItem Class
- QLayoutItem Member List
- QLayoutIterator Class
- QLayoutIterator Member List
- QLayout Member List
- QLCDNumber Class
- qlcdnumber.h Include File
- QLCDNumber Member List
- QLibrary Class
- qlibrary.h Include File
- QLibrary Member List
- QLineEdit Class
- qlineedit.h Include File
- QLineEdit Member List
- QListBox Class
- qlistbox.h Include File
- QListBoxItem Class
- QListBoxItem Member List
- QListBox Member List
- QListBoxPixmap Class
- QListBoxPixmap Member List
- QListBoxText Class
- QListBoxText Member List
- QListView Class
- qlistview.h Include File
- QListViewItem Class
- QListViewItemIterator Class
- QListViewItemIterator Member List
- QListViewItem Member List
- QListView Member List
- QLocalFs Class
- qlocalfs.h Include File
- QLocalFs Member List
- QLock Class
- qlock_qws.h Include File
- QLock Member List
- QMag
- QMainWindow类
- qmainwindow.h包含文件
- QMainWindow成员列表
- qmake的介绍
- 安装qmake
- 10分钟学会使用qmake
- qmake教程
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- QMap Class
- QMapConstIterator Class
- QMapConstIterator Member List
- qmap.h Include File
- QMapIterator Class
- QMapIterator Member List
- QMap Member List
- QMemArray类
- qmemarray.h包含文件
- QMemArray成员列表
- QMenuBar Class
- qmenubar.h Include File
- QMenuBar Member List
- QMenuData Class
- qmenudata.h Include File
- QMenuData Member List
- QMessageBox类
- qmessagebox.h包含文件
- QMessageBox成员列表
- QMetaObject Class
- qmetaobject.h Include File
- QMetaObject Member List
- QMetaProperty Class
- QMetaProperty Member List
- qmime.h Include File
- QMimeSource Class
- QMimeSourceFactory Class
- QMimeSourceFactory Member List
- QMimeSource Member List
- QMotifPlusStyle Class
- qmotifplusstyle.h Include File
- QMotifPlusStyle Member List
- QMotifStyle Class
- qmotifstyle.h Include File
- QMotifStyle Member List
- QMouseEvent Class
- QMouseEvent Member List
- QMoveEvent Class
- QMoveEvent Member List
- QMovie Class
- qmovie.h Include File
- QMovie Member List
- QMultiLineEdit Class
- qmultilineedit.h Include File
- QMultiLineEdit Member List
- QMutex类
- qmutex.h包含文件
- QMutex成员列表
- qnamespace.h Include File
- qnetwork.h Example File
- QNetworkOperation Class
- QNetworkOperation Member List
- QNetworkProtocol Class
- qnetworkprotocol.h Include File
- QNetworkProtocol Member List
- qnp.h Include File
- QNPInstance Class
- QNPInstance Member List
- QNPlugin Class
- QNPlugin Member List
- QNPStream Class
- QNPStream Member List
- QNPWidget Class
- QNPWidget Member List
- QObject类
- QObjectCleanupHandler Class
- qobjectcleanuphandler.h Include File
- QObjectCleanupHandler Member List
- qobject.h包含文件
- QObjectList类
- qobjectlist.h包含文件
- QObjectListIt类
- QObjectListIt成员列表
- QObjectList成员列表
- QObject成员列表
- QPaintDevice类
- qpaintdevice.h包含文件
- QPaintDevice成员列表
- QPaintDeviceMetrics Class
- qpaintdevicemetrics.h Include File
- QPaintDeviceMetrics Member List
- QPainter类
- qpainter.h包含文件
- QPainter成员列表
- QPaintEvent Class
- QPaintEvent Member List
- QPair Class
- qpair.h Include File
- QPair Member List
- QPalette Class
- qpalette.h Include File
- QPalette Member List
- QPen Class
- qpen.h Include File
- QPen Member List
- QPicture Class
- qpicture.h Include File
- QPicture Member List
- QPixmap Class
- QPixmapCache Class
- qpixmapcache.h Include File
- QPixmapCache Member List
- qpixmap.h Include File
- QPixmap Member List
- QPlatinumStyle Class
- qplatinumstyle.h Include File
- QPlatinumStyle Member List
- QPNGImagePacker Class
- QPNGImagePacker Member List
- qpngio.h Include File
- QPoint类
- QPointArray Class
- qpointarray.h Include File
- QPointArray Member List
- qpoint.h包含文件
- QPoint成员列表
- QPopupMenu Class
- qpopupmenu.h Include File
- QPopupMenu Member List
- QPrinter Class
- qprinter.h Include File
- QPrinter Member List
- QProcess Class
- QProcess Examples
- qprocess.h Include File
- QProcess Member List
- QProgressBar Class
- qprogressbar.h Include File
- QProgressBar Member List
- QProgressDialog类
- qprogressdialog.h包含文件
- QProgressDialog成员列表
- QPtrCollection类
- qptrcollection.h包含文件
- QPtrCollection成员列表
- QPtrDict Class
- qptrdict.h Include File
- QPtrDictIterator Class
- QPtrDictIterator Member List
- QPtrDict Member List
- QPtrList类
- qptrlist.h包含文件
- QPtrListIterator类
- QPtrListIterator成员列表
- QPtrList成员列表
- QPtrQueue类
- qptrqueue.h包含文件
- QPtrQueue成员列表
- QPtrStack类
- qptrstack.h包含文件
- QPtrStack成员列表
- QPtrVector类
- qptrvector.h包含文件
- QPtrVector成员列表
- QPushButton类
- qpushbutton.h包含文件
- QPushButton成员列表
- QRadioButton Class
- qradiobutton.h Include File
- QRadioButton Member List
- QRangeControl类
- qrangecontrol.h包含文件
- QRangeControld成员列表
- QRect类
- qrect.h包含文件
- QRect成员列表
- QRegExp Class
- qregexp.h Include File
- QRegExp Member List
- QRegExpValidator Class
- QRegExpValidator Member List
- QRegion Class
- qregion.h Include File
- QRegion Member List
- QResizeEvent Class
- QResizeEvent Member List
- qrtlcodec.h Include File
- QScreen Class
- QScreen Member List
- QScrollBar类
- qscrollbar.h包含文件
- QScrollBar成员列表
- QScrollView类
- qscrollview.h包含文件
- QScrollView成员列表
- QSemaphore类
- qsemaphore.h包含文件
- QSemaphore成员列表
- QServerSocket Class
- qserversocket.h Include File
- QServerSocket Member List
- QSessionManager Class
- qsessionmanager.h Include File
- QSessionManager Member List
- QSettings Class
- qsettings.h Include File
- QSettings Member List
- QSGIStyle Class
- qsgistyle.h Include File
- QSGIStyle Member List
- QShowEvent Class
- QShowEvent Member List
- QSignal Class
- qsignal.h Include File
- QSignalMapper Class
- qsignalmapper.h Include File
- QSignalMapper Member List
- QSignal Member List
- QSimpleRichText Class
- qsimplerichtext.h Include File
- QSimpleRichText Member List
- QSize类
- QSizeGrip Class
- qsizegrip.h Include File
- QSizeGrip Member List
- qsize.h包含文件
- QSize成员列表
- QSizePolicy Class
- qsizepolicy.h Include File
- QSizePolicy Member List
- QSjisCodec Class
- qsjiscodec.h Include File
- QSjisCodec Member List
- QSlider Class
- qslider.h Include File
- QSlider Member List
- QSocket类
- QSocketDevice Class
- qsocketdevice.h Include File
- QSocketDevice Member List
- qsocket.h包含文件
- QSocket成员列表
- QSocketNotifier Class
- qsocketnotifier.h Include File
- QSocketNotifier Member List
- QSortedList Class
- qsortedlist.h Include File
- QSortedList Member List
- QSound类
- qsound.h包含文件
- QSound成员列表
- QSpacerItem Class
- QSpacerItem Member List
- QSpinBox Class
- qspinbox.h Include File
- QSpinBox Member List
- QSplitter Class
- qsplitter.h Include File
- QSplitter Member List
- QSql类
- QSqlCursor Class
- qsqlcursor.h Include File
- QSqlCursor Member List
- QSqlDatabase Class
- qsqldatabase.h Include File
- QSqlDatabase Member List
- QSqlDriver Class
- qsqldriver.h Include File
- QSqlDriver Member List
- QSqlDriverPlugin Class
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- sql/overview/basicbrowsing2/main.cpp Example File
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- sql/overview/subclass1/main.cpp Example File
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- sql/overview/subclass3/main.cpp Example File
- sql/overview/subclass3/main.h Example File
- sql/overview/subclass4/main.cpp Example File
- sql/overview/subclass4/main.h Example File
- sql/overview/subclass5/main.cpp Example File
- sql/overview/subclass5/main.h Example File
- sql/overview/table1/main.cpp Example File
- sql/overview/table2/main.cpp Example File
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- SQL Table
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- t12/cannon.cpp Example File
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- t12/lcdrange.cpp Example File
- t12/lcdrange.h Example File
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- t13/cannon.cpp Example File
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- t13/gamebrd.cpp Example File
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- t13/lcdrange.cpp Example File
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- t14/cannon.cpp Example File
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- t14/gamebrd.cpp Example File
- t14/gamebrd.h Example File
- t14/lcdrange.cpp Example File
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- t14/main.cpp Example File
- t7/lcdrange.cpp Example File
- t7/lcdrange.h Example File
- t7/main.cpp Example File
- t8/cannon.cpp Example File
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- t8/lcdrange.cpp Example File
- t8/lcdrange.h Example File
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- t9/cannon.cpp Example File
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- t9/lcdrange.cpp Example File
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- Tabdialog
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- 表格例程
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- Tetrix
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- Qt教程一 —— 第一章:Hello, World!
- Qt教程一 —— 第二章:调用退出
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- Qt教程一 —— 第四章:使用窗口部件
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- Qt教程一 —— 第八章:准备战斗
- Qt教程一 —— 第九章:你可以使用加农炮了
- Qt教程一 —— 第十章:像丝一样滑
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- Qt教程一 —— 第十一章:悬在空中的砖
- Qt教程一 —— 第十三章:游戏结束
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- 介绍
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- XML
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- 适应2000年问题声明
QHeader类
QHeader类为诸如表格和列表(listview)等提供标题行或者列。 详见……
#include <qheader.h>
继承了QWidget。
所有成员函数的列表。
公共成员
- QHeader ( QWidget*parent = 0, constchar*name = 0 )
- QHeader ( intn, QWidget*parent = 0, constchar*name = 0 )
- ~QHeader ()
- int addLabel ( constQString&s, intsize = -1 )
- int addLabel ( constQIconSet&iconset, constQString&s, intsize = -1 )
- void removeLabel ( intsection )
- virtual void setLabel ( intsection, constQString&s, intsize = -1 )
- virtual void setLabel ( intsection, constQIconSet&iconset, constQString&s, intsize = -1 )
- QString label ( intsection ) const
- QIconSet * iconSet ( intsection ) const
- virtual void setOrientation ( Orientation )
- Orientation orientation () const
- virtual void setTracking ( boolenable )
- bool tracking () const
- virtual void setClickEnabled ( boolenable, intsection = -1 )
- virtual void setResizeEnabled ( boolenable, intsection = -1 )
- virtual void setMovingEnabled ( bool )
- virtual void setStretchEnabled ( boolb, intsection )
- void setStretchEnabled ( boolb )
- bool isClickEnabled ( intsection = -1 ) const
- bool isResizeEnabled ( intsection = -1 ) const
- bool isMovingEnabled () const
- bool isStretchEnabled () const
- bool isStretchEnabled ( intsection ) const
- void resizeSection ( intsection, ints )
- int sectionSize ( intsection ) const
- int sectionPos ( intsection ) const
- int sectionAt ( intpos ) const
- int count () const
- int headerWidth () const
- QRect sectionRect ( intsection ) const
- virtual void setCellSize ( intsection, ints ) (obsolete)
- int cellSize ( inti ) const (obsolete)
- int cellPos ( inti ) const (obsolete)
- int cellAt ( intpos ) const (obsolete)
- int offset () const
- int mapToSection ( intindex ) const
- int mapToIndex ( intsection ) const
- int mapToLogical ( inta ) const (obsolete)
- int mapToActual ( intl ) const (obsolete)
- void moveSection ( intsection, inttoIndex )
- virtual void moveCell ( intfromIdx, inttoIdx ) (obsolete)
- void setSortIndicator ( intsection, boolincreasing = TRUE )
- void adjustHeaderSize ()
公共槽
- virtual void setOffset ( intpos )
信号
- void clicked ( intsection )
- void pressed ( intsection )
- void released ( intsection )
- void sizeChange ( intsection, intoldSize, intnewSize )
- void indexChange ( intsection, intfromIndex, inttoIndex )
- void sectionClicked ( intindex ) (obsolete)
- void moved ( intfromIndex, inttoIndex ) (obsolete)
属性
- int count- 标题中的节(section)数(read only)
- bool moving- 标题节是否可以被移动
- int offset- 标题最左(或者最上)可见的象素
- Orientation orientation- 标题的物理朝向
- bool stretching- 标题的节是否总是占据标题的全部宽度(或者高度)
- bool tracking- 信号sizeChange()是否被连续发送
保护成员
- QRect sRect ( intindex )
- virtual void paintSection ( QPainter*p, intindex, constQRect&fr )
- virtual void paintSectionLabel ( QPainter*p, intindex, constQRect&fr )
详细描述
QHeader类为诸如表格和列表(listview)等提供标题行或者列。本类提供一个标题,例如一个垂直标题显示行标签,或者一个水平标题显示列标签。它可以用于诸如QTable和QListView中。
标题由一个或者很多节组成,每个节都可以显示一个文本标签和一个图标(iconset)。使用setSortIndicator(),还可以显示排序指示器(箭头)。
使用addLabel()添加节,使用removeLabel()删去节。标签和图标在addLabel()中设置,以后可以用setLabel()来修改。使用count()以得到标题中节的数目。
标题的朝向用setOrientation()来设置。如果setStretchEnabled()为TRUE,节将会占据标题的全部宽度(对于垂直标题则是全部高度)。如果setResizeEnabled()为TRUE,用户可以手动调整节的大小。调用adjustHeaderSize(),可以调整节的大小,占据全部宽度(或者高度)。
可以使用moveSection()以移动节。如果setMovingEnabled()为TRUE,用户可以把节拖来拖去。如果某个节被移动,节被添加(使用addLabel())时的索引位置就可能与移动之后不同了。实际上你不必担心这一点,因为QHeader的API是使用节的编号(section number)的术语来工作的,某特定的节被移到哪里并没有关系。
如果你想得到一个节的当前索引位置,可以以节编号为参数调用mapToIndex()。(这个节编号是由生成该节的addLabel()调用所返回的数值。)如果你想得到一个具体索引位置的节的编号,可以以索引位置为参数调用mapToSection()。
下面是阐明mapToSection()和mapToIndex()的例子:
索引位置 | |||
---|---|---|---|
0 | 1 | 2 | 3 |
原来的节次序 | |||
Sect 0 | Sect 1 | Sect 2 | Sect 3 |
用户移动一个节之后的次序 | |||
Sect 0 | Sect 2 | Sect 3 | Sect 1 |
k | mapToSection(k) | mapToIndex(k) |
---|---|---|
0 | 0 | 0 |
1 | 2 | 3 |
2 | 3 | 1 |
3 | 1 | 2 |
在上面的例子中,如果我们要找出哪个节在索引位置3,可以调用mapToSection(3),就会得到节编号为1,因为节1被移动到了那里。类似地,如果我们要知道节2占据了哪个索引位置,调用mapToIndex(2),就会得到索引为1。
QHeader提供了clicked()、pressed()和released()信号。如果用户改变了某个节的大小,sizeChange()信号被发送。如果你希望sizeChange()信号在用户调整大小时持续被发送(而不是只在调整后),使用setTracking()。如果用户移动了节,indexChange()信号被发送。
也参见QListView、QTable和高级部件。
成员函数文档
QHeader::QHeader ( QWidget*parent = 0, constchar*name = 0 )
构造一个水平标题,命名为name,父部件为parent。QHeader::QHeader ( intn, QWidget*parent = 0, constchar*name = 0 )
构造一个水平标题,命名为name,由n节组成,父部件为parent。QHeader::~QHeader ()
销毁标题及其节。int QHeader::addLabel ( constQString&s, intsize = -1 )
增加一个新节,标签文本为s。返回节所加在的索引位置(对于水平标题是在右边,对于垂直标题是在下边)。节的宽度设置为size。若size < 0,则根据文本s来选择合适的大小。int QHeader::addLabel ( constQIconSet&iconset, constQString&s, intsize = -1 )
这是重载的成员函数,为便利而提供。其行为本质上类似上一个函数。增加一个带有图标iconset和标签文本s的新节。返回节所加在的索引位置(对于水平标题是在右边,对于垂直标题是在下边)。节的宽度设置为size。若size < 0,则根据文本来选择合适的大小。
void QHeader::adjustHeaderSize ()
调整节的大小,以尽可能全部占据标题的大小。只有isStretchEnabled()为TRUE的那些节会被调整大小。
int QHeader::cellAt ( intpos ) const
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用sectionAt()来代替本函数。
Returns the index at which the section is displayed, which contains pos in widget coordinates, or -1 if pos is outside the header sections.
int QHeader::cellPos ( inti ) const
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用sectionPos()来代替本函数。
Returns the position in pixels of the section that is displayed at the index i。 The position is measured from the start of the header.
int QHeader::cellSize ( inti ) const
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用sectionSize()来代替本函数。
Returns the size in pixels of the section that is displayed at the index i。
void QHeader::clicked ( intsection ) [信号]
如果isClickEnabled()为TRUE,当用户点击节section时,本信号被发送。
也参见pressed()和released()。
int QHeader::count () const
返回标题中的节的数目。详见"count"属性。
int QHeader::headerWidth () const
返回所有标题列的总宽度。QIconSet* QHeader::iconSet ( intsection ) const
返回节section的图标。如果该节不存在,返回0。void QHeader::indexChange ( intsection, intfromIndex, inttoIndex ) [信号]
当用户把节section从索引位置fromIndex移到索引位置toIndex时,本信号被发送。
bool QHeader::isClickEnabled ( intsection = -1 ) const
如果节section为可点击,返回TRUE;否则返回FALSE。在section超出范围时(为负或者大于count() - 1),如果所有节都是可点击,返回TRUE,否则返回FALSE。
也参见setClickEnabled()。
bool QHeader::isMovingEnabled () const
如果标题节可以被移动,返回TRUE;否则返回FALSE。详见"moving"属性。
bool QHeader::isResizeEnabled ( intsection = -1 ) const
如果节section为可调整大小,返回TRUE;否则返回FALSE。如果section为-1,本函数应用于所有节,也就是说,如果所有节都是可调整大小的,返回TRUE;否则返回FALSE。
也参见setResizeEnabled()。
bool QHeader::isStretchEnabled () const
如果标题节总是占据标题的全部宽度(或者高度),返回TRUE;否则返回FALSE。 详见"stretching"属性。
bool QHeader::isStretchEnabled ( intsection ) const
如果节section可以调整大小以占据标题的全部宽度(或者高度),返回TRUE;否则返回FALSE。如果至少一个节是可伸缩的,节就总是占据标题的全部宽度。也参见setStretchEnabled()。
QString QHeader::label ( intsection ) const
返回节section的文本。如果该节不存在,返回空字符串。int QHeader::mapToActual ( intl ) const
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用mapToIndex()来代替本函数。
Translates from logical index l to actual index (index at which the section l is displayed) . Returns -1 if l is outside the legal range.
也参见mapToLogical()。
int QHeader::mapToIndex ( intsection ) const
返回节section当前被显示的索引。更多解释参见mapTo例子。
int QHeader::mapToLogical ( inta ) const
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用mapToSection()来代替本函数。
Translates from actual index a (index at which the section is displayed) to logical index of the section. Returns -1 if a is outside the legal range.
也参见mapToActual()。
int QHeader::mapToSection ( intindex ) const
返回显示于索引位置index的节。更多解释参见mapTo例子。
void QHeader::moveCell ( intfromIdx, inttoIdx ) [虚]
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用moveSection()来代替本函数。
Moves the section that is currently displayed at index fromIdx to index toIdx。
void QHeader::moveSection ( intsection, inttoIndex )
把节section移到索引位置toIndex。void QHeader::moved ( intfromIndex, inttoIndex ) [信号]
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用indexChange()来代替本函数。
This signal is emitted when the user has moved the section which is displayed at the index fromIndex to the index toIndex。
int QHeader::offset () const
返回标题的最左(或者最上)的可见象素。 详见"offset"属性。
Orientation QHeader::orientation () const
返回标题的物理朝向。 详见"orientation"属性。
void QHeader::paintSection ( QPainter*p, intindex, constQRect&fr ) [虚 保护]
在矩形fr内(使用部件坐标),使用画具p绘制在位置index的节。调用了paintSectionLabel()。
void QHeader::paintSectionLabel ( QPainter*p, intindex, constQRect&fr ) [虚 保护]
在矩形fr内(使用部件坐标),使用画具p绘制在位置index的节的标签。被paintSection()所调用。
void QHeader::pressed ( intsection ) [信号]
当用户按下节section时,本信号被发送。
也参见released()。
void QHeader::released ( intsection ) [信号]
当用户释放节section时,本信号被发送。
也参见pressed()。
void QHeader::removeLabel ( intsection )
删去节section。如果该节不存在,什么也不做。void QHeader::resizeSection ( intsection, ints )
调整节section的大小为s象素宽(或者高)。QRect QHeader::sRect ( intindex ) [protected]
返回被索引为index的节所覆盖的矩形。int QHeader::sectionAt ( intpos ) const
返回包括以象素给出的位置pos的节索引。也参见offset。
void QHeader::sectionClicked ( intindex ) [信号]
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用clicked()来代替本函数。
This signal is emitted when a part of the header is clicked. index is the index at which the section is displayed.
In a list view this signal would typically be connected to a slot that sorts the specified column (or row)。
int QHeader::sectionPos ( intsection ) const
返回节section开始的位置(以象素形式)。也参见offset。
QRect QHeader::sectionRect ( intsection ) const
返回被节section所覆盖的矩形。int QHeader::sectionSize ( intsection ) const
以象素形式返回节section的宽度(或者高度)。void QHeader::setCellSize ( intsection, ints ) [虚]
本函数已经废弃。为支持旧代码运行而提供,强烈建议新代码中不要使用。使用resizeSection()来代替本函数。
Sets the size of the section section to s pixels.
警告: does not repaint or send out signals。
void QHeader::setClickEnabled ( boolenable, intsection = -1 ) [虚]
如果enable为TRUE,点击节section就会导致clicked()信号被发送;否则节将忽略点击。如果section为-1(缺省),那么enable值对所有存在的节都设置,而且也应用到增加的新节上。
也参见moving和setResizeEnabled()。
void QHeader::setLabel ( intsection, constQString&s, intsize = -1 ) [虚]
设置节section的文本为s。如果size >= 0,节的宽度设置为size;否则不变。该节已经设置的图标保持不变。如果该节不存在,什么也不做。
例子:chart/setdataform.cpp和table/small-table-demo/main.cpp。
void QHeader::setLabel ( intsection, constQIconSet&iconset, constQString&s, intsize = -1 ) [虚]
这是重载的成员函数,为便利而提供。其行为本质上类似上一个函数。把节section的图标设置为iconset,文本设置为s。如果size >= 0,节的宽度设置为size;否则不变。
如果该节不存在,什么也不做。
void QHeader::setMovingEnabled ( bool ) [虚]
设置标题的节是否可以移动。详见"moving"属性。
void QHeader::setOffset ( intpos ) [虚 槽]
设置标题的最左(或者最上)的可见象素为pos。详见"offset"属性。
void QHeader::setOrientation ( Orientation ) [虚]
设置标题的物理朝向。详见"orientation"属性。
void QHeader::setResizeEnabled ( boolenable, intsection = -1 ) [虚]
如果enable为TRUE,用户可以调整节section的大小;否则该节不能被手动调整大小。如果section为负(缺省),那么enable值对所有存在的节都设置,而且也应用到增加的新节上。 例子:
// Allow resizing of all current and future sections header->setResizeEnabled(TRUE); // Disable resizing of section 3, (the fourth section added) header->setResizeEnabled(FALSE, 3);
如果用户调整了一个节的大小,sizeChange()信号被发送。
也参见moving、setClickEnabled()和tracking。
void QHeader::setSortIndicator ( intsection, boolincreasing = TRUE )
因为QHeader经常与表格或者列表部件一起使用,它可以显示排序的次序。这可以通过在节的右边显示一个箭头来实现。如果increasing为TRUE(缺省),箭头指向下;否则向上。
同一时间只能有一个节显示排序指示。如果你不想让任何节显示排序指示器,传入参数section为-1。
void QHeader::setStretchEnabled ( boolb, intsection ) [虚]
如果b为TRUE,节section的大小将会随标题的大小调整而调整,以使节占据标题的全部宽度(对于垂直标题则是高度);否则,节section被设置为不可伸缩,也不会随标题的调整大小而调整大小。在section为-1时,如果b为TRUE,所有节的大小相等地随标题的大小调整而调整,以使节占据标题的全部宽度(对于垂直标题则是高度);否则,所有节都被设置为不可伸缩,也不会随标题的调整大小而调整大小。
也参见adjustHeaderSize()。
void QHeader::setStretchEnabled ( boolb )
设置标题的节是否总是占据标题的全部宽度(或者高度)为b。 详见"stretching"属性。
void QHeader::setTracking ( boolenable ) [虚]
设置sizeChange()信号是否持续被发送为enable。 详见"tracking"属性。
void QHeader::sizeChange ( intsection, intoldSize, intnewSize ) [信号]
当用户把节section的大小从oldSize改为newSize时,本信号被发送。典型地,本信号连接到一个槽上,这个槽重绘包括该标题的表格或者列表。
bool QHeader::tracking () const
如果sizeChange()信号是持续被发送的,返回TRUE;否则返回FALSE。 详见"tracking"属性。
属性文档
int count
本属性决定标题中的节的数目。
用count()来得到本属性值。
bool moving
得到本属性值标题的节是否可以被移动。
如果本属性为TRUE,用户可以移动节。如果用户移动某个节,indexChange()信号被发送。
也参见setClickEnabled()和setResizeEnabled()。
用setMovingEnabled()设置本属性值,用isMovingEnabled()得到本属性值。
int offset
本属性决定标题的最左(或者最上)的可见象素。
设置本属性将滚动标题以使得offset成为最左(或者最上,对于垂直标题)的可见象素。
用setOffset()设置本属性值,用offset()得到本属性值。
Orientation orientation
本属性决定标题的物理朝向。
朝向要么是QHeader::Vertical,要么就是QHeader::Horizontal(缺省)。
如果你没有提供大小参数,就要在添加标签之前调用setOrientation(),否则大小会不正确。
用setOrientation()设置本属性值,用orientation()得到本属性值。
bool stretching
本属性决定标题的节是否总是占据标题的全部宽度(或者高度)。
用setStretchEnabled()设置本属性值,用isStretchEnabled()得到本属性值。
bool tracking
本属性决定sizeChange()信号是否持续地被发送。
如果tracking为打开,当鼠标移动(也就是标题被调整大小)时,sizeChange()信号持续地被发送;否则,只有在大小调整结束鼠标按键释放时,才发送信号。
Tracking缺省为FALSE。
用setTracking()设置本属性值,用tracking()得到本属性值。
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