Shulou(Shulou.com)06/02 Report--

# ifndef MAINWINDOW_H#define MAINWINDOW_H#include namespace Ui {class MainWindow;} class MainWindow: public QMainWindow {Q_OBJECTpublic: explicit MainWindow (QWidget * parent = 0); ~ MainWindow (); private slots: void ButtonSlot (); protected: void paintEvent (QPaintEvent * event); void mousePressEvent (QMouseEvent * event); private: Ui::MainWindow * ui; QString str;} # endif / / MAINWINDOW_H#include "mainwindow.h" # include "ui_mainwindow.h" # include#include # include#include MainWindow::MainWindow (QWidget * parent): QMainWindow (parent), ui (new Ui::MainWindow) {ui- > setupUi (this); QObject::connect (ui- > pushButton,SIGNAL (clicked ()), this,SLOT (ButtonSlot (); / / connection signal and slot} MainWindow::~MainWindow () / / destructor {delete ui } void MainWindow::ButtonSlot () {str=ui- > lineEdit- > text (); ui- > textBrowser- > setText (str);} / / put the lineEdit content in Browservoid MainWindow::paintEvent (QPaintEvent * event) {Q_UNUSED (event); QPainter painter (this); painter.drawText (170cm75, "coordinates -") } / / write whatever void MainWindow::mousePressEvent (QMouseEvent * event) {ui- > label- > setText (QString ("% 1,% 2") .arg (QString::number (event- > x (), QString::number (event- > y () with painter;} / / coordinate display to label#include "mainwindow.h" # include int main (int argc, char * argv []) {QApplication a (argc, argv); MainWindow w; w.show () Return a.exec ();}

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