QMenu的个性化定制

QT中对菜单处理例子： ：

C:\Qt\Qt5.5.1\Examples\Qt-5.5\widgets\mainwindows\menus\menus.pro

QMenu的个性化定制

参考
http://blog.sina.com.cn/s/blog_a6fb6cc90101fxsc.html http://blog.chinaunix.net/xmlrpc.php?r=blog/index&uid=29181887&cid=184923&pattern=list
C:\Qt\Qt5.5.1\Examples\Qt-5.5\widgets\mainwindows\menus\menus.pro

代码：

mainwindow.h：

#ifndef MAINWINDOW_H

#define MAINWINDOW_H

#include <QMainWindow>

QT_BEGIN_NAMESPACE

class QAction;

class QActionGroup;

class QLabel;

class QMenu;

QT_END_NAMESPACE

//! [0]

class MainWindow : public QMainWindow

{

Q_OBJECT

public:

MainWindow();

protected:

void contextMenuEvent(QContextMenuEvent *event) Q_DECL_OVERRIDE;

//! [0]

//! [1]

private slots:

void newFile();

void open();

void save();

void print();

void undo();

void redo();

void cut();

void copy();

void paste();

void bold();

void italic();

void leftAlign();

void rightAlign();

void justify();

void center();

void setLineSpacing();

void setParagraphSpacing();

void about();

void aboutQt();

//! [1]

//! [2]

private:

void createActions();

void createMenus();

//! [2]

//! [3]

QMenu *fileMenu;

QMenu *editMenu;

QMenu *formatMenu;

QMenu *helpMenu;

QActionGroup *alignmentGroup;

QAction *newAct;

QAction *openAct;

QAction *saveAct;

QAction *printAct;

QAction *exitAct;

QAction *undoAct;

QAction *redoAct;

QAction *cutAct;

QAction *copyAct;

QAction *pasteAct;

QAction *boldAct;

QAction *italicAct;

QAction *leftAlignAct;

QAction *rightAlignAct;

QAction *justifyAct;

QAction *centerAct;

QAction *setLineSpacingAct;

QAction *setParagraphSpacingAct;

QAction *aboutAct;

QAction *aboutQtAct;

QLabel *infoLabel;

};

//! [3]

#endif

mainwindow.cpp ：

#include "mainwindow.h"

#include "ui_mainwindow.h"

#include <QFileDialog>

#include <QTextStream>

#include <QDomNode>

#include <QHash>

#include <QAbstractItemModel>

#include <QDomDocument>

#include <QModelIndex>

#include <QString>

#include <QDebug>

#include <QMap>

#include <QMessageBox>

#include <QContextMenuEvent>

QT_BEGIN_NAMESPACE

class QMenu;

class QTreeView;

class QWidgetAction;

class QContextMenuEvent;

QT_END_NAMESPACE

MainWindow::MainWindow(QWidget *parent) :

QMainWindow(parent),

ui(new Ui::MainWindow)

{

ui->setupUi(this);

this->createActions_0();

this->creatActions_1();

this->addActions();

connect(ui->pushButton_4,SIGNAL(clicked()),this,SLOT(pushButton_4Slot()));

}

MainWindow::~MainWindow()

{

delete ui;

}

void MainWindow::createActions_0()

{

myAllMenu = new QMenu();

show_action_0 = new QAction("show_action_0",myAllMenu);

show_action_1 = new QAction("show_action_1",myAllMenu);

show_action_2 = new QAction("show_action_2",myAllMenu);

connect(show_action_0, SIGNAL(triggered()), this, SLOT(show_action_0_slot()));

connect(show_action_1, SIGNAL(triggered()), this, SLOT(show_action_1_slot()));

connect(show_action_2, SIGNAL(triggered()), this, SLOT(show_action_2_slot()));

}

void MainWindow::show_action_1_slot()

{

QMessageBox msgBox;

msgBox.setText("show_action_1_slot");

msgBox.exec();

}

void MainWindow::show_action_2_slot()

{

QMessageBox msgBox;

msgBox.setText("show_action_2_slot");

msgBox.exec();

}

void MainWindow::show_action_0_slot()

{

QMessageBox msgBox;

msgBox.setText("show_action_0_slot.");

msgBox.exec();

}

void MainWindow::pushButton_4Slot()

{

}

void MainWindow::contextMenuEvent(QContextMenuEvent *event)

{

myAllMenu->exec(event->globalPos());

//myAllMenu->exec(event->pos());

// QMenuBar * menuBar;

// menuBar->addMenu(pop_menu);

//this->setMenuBar(pop_menu);

//this->setMenuBar(menuBar);

}

void MainWindow::creatActions_1()

{

play_widget = new QWidget();

play_widget_action = new QWidgetAction(myAllMenu);

button0 = new QPushButton("button0");

button1 = new QPushButton("button1");

button2 = new QPushButton("button2");

QLineEdit *lineEdit0=new QLineEdit("lineEdit0");

QComboBox *ComboBox0=new QComboBox();

ComboBox0->addItem("ComboBox0-items0");

ComboBox0->addItem("ComboBox0-items1");

ComboBox0->addItem("ComboBox0-items2");

ComboBox0->setCurrentIndex(1);

label0 = new QLabel("label0");

label0->setText("player");

label0->setEnabled(false);

label0->setFixedWidth(20);

label0->setAlignment(Qt::AlignCenter);

button0->setObjectName("button0");

button1->setObjectName("button1");

button2->setObjectName("button2");

QHBoxLayout *hlayout = new QHBoxLayout();

hlayout->addWidget(button0);

hlayout->addWidget(button1);

hlayout->addWidget(button2);

hlayout->addWidget(lineEdit0);

hlayout->addWidget(ComboBox0);

hlayout->setSpacing(0);

hlayout->setContentsMargins(20, 0, 20, 0);

QVBoxLayout *vlayout = new QVBoxLayout();

vlayout->addLayout(hlayout);

vlayout->addWidget(label0, 0, Qt::AlignCenter);

vlayout->setSpacing(5);

vlayout->setContentsMargins(0, 0, 0, 5);

play_widget->setLayout(vlayout);

play_widget_action->setDefaultWidget(play_widget);

play_widget->show();

connect(button0, SIGNAL(clicked()), this, SLOT(button0_slot()));

connect(button1, SIGNAL(clicked()), this, SLOT(button1_slot()));

connect(button2, SIGNAL(clicked()), this, SLOT(button2_slot()));

}

void MainWindow::button0_slot()

{

QMessageBox msgBox;

msgBox.setText("button0_slot.");

msgBox.exec();

}

void MainWindow::button1_slot()

{

QMessageBox msgBox;

msgBox.setText("button1_slot.");

msgBox.exec();

}

void MainWindow::button2_slot()

{

QMessageBox msgBox;

msgBox.setText("button2_slot.");

msgBox.exec();

}

void MainWindow::addActions()

{

myAllMenu = menuBar()->addMenu(tr("&pop_menu"));

myAllMenu->addAction(play_widget_action);

myAllMenu->addSeparator();

myAllMenu->addAction(show_action_0);

myAllMenu->addSeparator();

myAllMenu->addAction(show_action_1);

myAllMenu->addAction(show_action_2);

}

main.cpp ：

#include "mainwindow.h"

#include <QApplication>

int main(int argc, char *argv[])

{

QApplication a(argc, argv);

MainWindow w;

w.show();

return a.exec();

}