menubar¿Ø¼þ qt_Qt Widgets¡ª¡ª²Ëµ¥ºÍ²Ëµ¥À¸

Ö÷´°¿ÚMainWindowÐèÒª²Ëµ¥À¸QMenuBar¼°²Ëµ¥QMenuÀ´×é³É×ÔÉí，Ò»°ãÓ¦ÓóÌÐòµÄËùÓй¦Äܶ¼ÄÜÔڲ˵¥ÖÐÕÒµ½¡£½ÓÏÂÀ´¾ÍÀ´ËµËµËüÃÇ¡£

ËüÌí¼ÓÁ˺ܶද×÷QAction，²¢ÓÃ×ÔÉí×é³ÉÁ˲˵¥À¸QMenuBarÉϵIJ˵¥，µ±È»Ò²¿ÉÓÃÓÚ»ùËüµØ·½，ÈçÉÏÏÂÎIJ˵¥µÈ¡£

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QMenu(QWidget * parent = 0)

QMenu(const QString & title, QWidget * parent = 0)~QMenu()

QAction* addAction(const QString & text)//Ìí¼Ó¶¯×÷

QAction * addAction(const QIcon & icon, const QString &text)

QAction* addAction(const QString & text, const QObject * receiver, const char * member, const QKeySequence & shortcut = 0)//³¢ÊÔʧ°Ü，Çó½Ìconst char * member¸ÃÈçºÎ？

QAction * addAction(const QIcon & icon, const QString & text, const QObject * receiver, const char * member, const QKeySequence & shortcut = 0)void addAction(QAction *action)

QAction* addMenu(QMenu * menu)//Ìí¼Ó²Ëµ¥

QMenu * addMenu(const QString &title)

QMenu* addMenu(const QIcon & icon, const QString &title)

QAction* insertMenu(QAction * before, QMenu *menu)

QAction* addSection(const QString & text)//

QAction * addSection(const QIcon & icon, const QString &text)

QAction* addSeparator()//Ìí¼Ó·Ö¸ôÏß

QAction* insertSection(QAction * before, const QString &text)

QAction* insertSection(QAction * before, const QIcon & icon, const QString &text)

QAction* insertSeparator(QAction *before)void popup(const QPoint & p, QAction * atAction = 0)//¸Ã²Ëµ¥ÔÚp×ø±êµãµ¯³ö

QAction * exec()//¸Ã²Ëµ¥ÔÚ0,0 ×ø±ê³öÏÖ，Ö´Ðкó×èÈû³ÌÐò，·µ»Øµã»÷µÄ¶¯×÷»ò0(ʲôҲûµã，Èç°´Esc¼ü)

QAction * exec(const QPoint & p, QAction * action = 0)//ÉÏͬ，λÖÃÒ»°ãΪ：1，Êó±êλÖÃexec(QCursor::pos());2，Óëij²¿¼þ¶ÔÆëexec(somewidget.mapToGlobal

(QPoint(0, 0)));3，ͨ¹ýQMouseEvent *e，exec(e->globalPos());voidhideTearOffMenu()void clear()//Çå³ý²Ëµ¥ÖеÄËùÓÐÏî

void setActiveAction(QAction *act)voidsetAsDockMenu()void setDefaultAction(QAction *act)void setIcon(const QIcon &icon)void setSeparatorsCollapsible(boolcollapse)void setTearOffEnabled(bool)void setTitle(const QString &title)void setToolTipsVisible(boolvisible)

QIcon icon()constQAction* defaultAction() constQString title()constNSMenu*toNSMenu()bool toolTipsVisible() constQAction* actionAt(const QPoint & pt) constQRect actionGeometry(QAction* act) constQAction* activeAction() const

bool isEmpty() const

bool isTearOffEnabled() const

bool isTearOffMenuVisible() constQAction* menuAction() const

bool separatorsCollapsible() const

Signals

void

hovered(QAction * action)

void

triggered(QAction * action)

¾²Ì¬³ÉÔ±º¯ÊýStatic Public Members，¿ÉÓÃËü½«Ò»Ð©actions×éºÏ³ÉÒ»¸ö²Ëµ¥

QAction *

exec(QList actions, const QPoint & pos, QAction * at = 0, QWidget * parent = 0)

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QMenuBar(QWidget * parent = 0)~QMenuBar()

QAction* addMenu(QMenu * menu)//ÒÔϼ¸¸öÌí¼Ó²Ëµ¥µÄ±È½Ï³£ÓÃ

QMenu * addMenu(const QString &title)

QMenu* addMenu(const QIcon & icon, const QString &title)void setActiveAction(QAction *act)void setCornerWidget(QWidget * widget, Qt::Corner corner = Qt::TopRightCorner)//Ôڲ˵¥ÌõµÄ×î×ó»ò×îÓÒÌí¼Ó¸öС²¿¼þ，corner¿ÉÒÔΪQt::TopRightCorner(×îÓÒ)»ò

Qt::TopLeftCorner(×î×ó)void setDefaultAction(QAction * act)//Ö»Ö§³ÖWindows Mobile，ÊÖ»úÉϵġ°×óÈí¼ü¡±

void setDefaultUp(bool)//ĬÈÏfalse，²Ëµ¥Õý³£µØÏÂÀ­ÏÔʾ，ÈçÉè³Éfalse,Ôò²Ëµ¥ÍùÉÏÀ­ÏÔʾ

void setNativeMenuBar(bool nativeMenuBar)//²Ëµ¥±¾µØ»¯，Ö»Ö§³ÖMac OS XºÍWindows CE¡£ÎÒÏë，ÈçubuntuÉÏ，µ±´°¿Ú×î´ó»¯Ê±，²Ëµ¥¸½×ÅÓÚ×îÉÏÒ»À¸Ò»Ñù°É¡­¡­(On t hese platforms if this property is true, the menubar is used in the native menubar and is not in the window of its parent, if false the me nubar remains in the window.On other platforms the value of this attribute has no effect.)

void clear()//Çå³ýËùÓÐaction

QWidget* cornerWidget(Qt::Corner corner = Qt::TopRightCorner) constQAction* defaultAction() const

bool isDefaultUp() const

bool isNativeMenuBar() constNSMenu*toNSMenu()

QAction* actionAt(const QPoint & pt) constQRect actionGeometry(QAction* act) constQAction* activeAction() constQAction* addAction(const QString & text)//ÒÔÏÂËĸöÌí¼Ó¶¯×÷»ò²Ëµ¥，¸Ã¶¯×÷½«Ö±½ÓÏÔʾÔڲ˵¥ÌõÉÏ，¸Ð¾õËĸöº¯Êý¶¼±È½ÏÈÃÈËÎÞÓï，Ïë²»³ö¹Ù·½Ìí¼ÓËüÃǵÄÓÃÒâ！

QAction * addAction(const QString & text, const QObject * receiver, const char *member)void addAction(QAction *action)

QAction* insertMenu(QAction * before, QMenu *menu)

QAction* addSeparator()//Ôڲ˵¥ÌõÉÏÌí¼Ó·Ö¸ôÏß，ÊÔÁËÏÂ，û¿´µ½Ð§¹û，ºÍÒÔÉÏËĸöÒ»ÑùÈÃÈËÎÞÓï

QAction * insertSeparator(QAction * before)

Public Slots

virtual void

setVisible(bool visible)

Signals

void

hovered(QAction * action)

void

triggered(QAction * action)//µã»÷´¥·¢µÄ¶¯×÷，¿ÉÓÃËüÅжÏÊÇÄĸö¶¯×÷´¥·¢，´úÌæÐźŲ۵ÄʹÓÃ

¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª

¼òµ¥²âÊÔʾÀýÈçÏÂ：

#include "mainwindow.h"#include"ui_mainwindow.h"#include#include#include#include#includeMainWindow::MainWindow(QWidget*parent) :

QMainWindow(parent),

ui(newUi::MainWindow)

{

ui->setupUi(this);

QMenu*menu1= new QMenu("hello");

menu1->addAction("²Ëµ¥Ïî1");

menu1->addAction("²Ëµ¥Ïî2");if(QAction *act=menu1->exec(QCursor::pos()))

{

qDebug()<< act->text() <

}

file_menu=new QMenu("Îļþ");

file_menu->addAction("´ò¿ª");//¿ÉÓ÷µ»ØµÄQAction Á¬½Ó²Ûº¯Êý//file_menu->addAction("Í˳ö",this,exit,QKeySequence("Ctrl+E"));//ʧ°Ü

file_menu->addSeparator();

file_menu->addSection("Section");//òËÆÎÞЧ¹û

file_menu->addMenu(menu1);

ui->menuBar->addMenu(file_menu);

QPushButton*btn=new QPushButton("hello");

ui->menuBar->setCornerWidget(btn,Qt::TopLeftCorner);

ui->menuBar->setDefaultUp(true);

}

MainWindow::~MainWindow()

{deleteui;

}