setFixedSize(640,480);//設定視窗介面大小

//選單欄

newaction1=newQAction(QIcon("newfile.png"),"新建",this);//action的圖示，名字，父類

newaction1->setShortcut(QKeySequence("Ctrl+N"));//設定快捷鍵

newaction2=newQAction(QIcon("openfile.png"),"開啟",this);

newaction2->setShortcut(QKeySequence("Ctrl+O"));

newaction3=newQAction(QIcon("savefile.png"
 
),"儲存",this);

newaction3->setShortcut(QKeySequence("Ctrl+S"));

newaction4=newQAction(QIcon("closefile.png"),"關閉",this);

newaction4->setShortcut(QKeySequence("Ctrl+Q"));

newaction5=newQAction(QIcon("osave.png"),"另存為",this);

newaction5->setShortcut(QKeySequence("Ctrl+E"));

menu1=menuBar()->addMenu("檔案"
 
);//新建一個檔案選單

menu1->addAction(newaction1);

menu1->addAction(newaction2);

menu1->addAction(newaction3);

menu1->addAction(newaction4);

menu1->addAction(newaction5);

newaction6=newQAction(QIcon("font.png"),"字型",this);

newaction7=newQAction(QIcon("color.png"),"字型顏色",this);

menu2=menuBar()->addMenu("設定"
 
);

menu2->addAction(newaction6);

menu2->addAction(newaction7);

//工具欄

tob1=addToolBar("新建");//裡面新增任意字串

tob1->addAction(newaction1);

tob2=addToolBar("開啟");

tob2->addAction(newaction2);

tob3=addToolBar("儲存");

tob3->addAction(newaction5);

tob5=addToolBar("另存為");

tob5->addAction(newaction9);

tob4=addToolBar("關閉");

tob4->addAction(newaction6);

    tob6=addToolBar("字型");

tob6->addAction(newaction7);

tob7=addToolBar("字型顏色");

tob7->addAction(newaction8);

//文字編輯框

tedt=newQTextEdit(this);

this->setCentralWidget(tedt);//把文字編輯框新增到中間

tedt->setEnabled(false);//文字編輯使能:關閉

//狀態列

//statusBar()->showMessage("狀態");

lab=newQLabel("狀態",this);

lab->setText("狀態");

stb=statusBar();

stb->addWidget(lab);

connect(newaction1,SIGNAL(triggered()),this,SLOT(newfile()));

connect(newaction2,SIGNAL(triggered()),this,SLOT(openfile()));

connect(newaction3,SIGNAL(triggered()),this,SLOT(savefile()));

connect(newaction4,SIGNAL(triggered()),this,SLOT(closefile()));

connect(newaction6,SIGNAL(triggered()),this,SLOT(font()));

connect(newaction7,SIGNAL(triggered()),this,SLOT(fontcolor()));

connect(newaction5,SIGNAL(triggered()),this,SLOT(osavefile()));

voidMainWindow::newfile()

{

tedt->setEnabled(true);//文字編輯使能：開

}

voidMainWindow::openfile()

{

myfilename=QFileDialog::getOpenFileNames(this,"檔案",".","Textfiles(*.txt);;XMLfiles(*.xml)");//開啟當前目錄中的檔案

QFilefile(myfilename[0]);

if(!file.open(QIODevice::ReadWrite))

{

statusBar()->showMessage("開啟失敗");

return;

}

statusBar()->showMessage("開啟成功");

tedt->setText(file.readAll());//把檔案中的內容顯示在文字框

tedt->setEnabled(true);//文字編輯使能：開

file.close();

}

voidMainWindow::savefile()

{

QFilefile1(myfilename[0]);

if(!file1.open(QIODevice::ReadWrite))

{

statusBar()->showMessage("儲存失敗");

return;

}

if(!file1.write(tedt->toPlainText().toStdString().c_str()))

{

statusBar()->showMessage("儲存失敗");

return;

}

statusBar()->showMessage("儲存成功");

file1.close();

}

voidMainWindow::osavefile()

{

myfile=QFileDialog::getSaveFileName();

QFilefile(myfile);

if(!file.open(QIODevice::ReadWrite)){

statusBar()->showMessage("檔案開啟失敗");

return;

}

if(!file.write(tedt->toPlainText().toStdString().c_str()))

{

statusBar()->showMessage("另存失敗");

return;

}

statusBar()->showMessage("另存成功");

file.close();

}

voidMainWindow::closefile()

{

tedt->setText("");

tedt->setEnabled(false);//文字編輯使能：關

}

voidMainWindow::font()

{

boolok;

QFontmyfont=QFontDialog::getFont(&ok,this);

if(ok)

{

tedt->setFont(myfont);

}

}

voidMainWindow::fontcolor()

{

QColormycolor=QColorDialog::getColor();

tedt->setTextColor(mycolor);

}

MainWindow::~MainWindow()

{

}