int main(int argc, char* argv[])
{
QApplication app(argc, argv);
QTextCodec::setCodecForLocale(QTextCodec::codecForLocale());
// 设置随机数的初始值
qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
MyView view;
view.show();
return app.exec();
}
int main(int argc, char* argv[]) {
QApplication app(argc, argv);
QTextCodec::setCodecForTr(QTextCodec::codecForLocale());
//QTime提供了闹钟功能
qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));//secsTo()为返回当前的秒数
QPixmap pix(":/images/logo.png");
QSplashScreen splash(pix);
splash.resize(pix.size());
splash.show();
app.processEvents();//调用该函数的目的是为了使程序在启动画面的同时仍然能够响应鼠标事件
MyView view;//主函数是直接调用的视图类
view.show();
splash.finish(&view);//当窗口view完成初始化工作后就结束启动画面
return app.exec();
}
int main(int argc, char** argv)
{
QApplication app(argc, argv);
QWidget wgt;
QGraphicsScene scene(QRectF(-100, -100, 640, 480));
MyView* pView = new MyView(&scene);
QPushButton* pcmdZoomIn = new QPushButton("&Zoom In");
QPushButton* pcmdZoomOut = new QPushButton("Z&oom Out");
QPushButton* pcmdRotateLeft = new QPushButton("&Rotate Left");
QPushButton* pcmdRotateRight = new QPushButton("Ro&tate Right");
pView->setRenderHint(QPainter::Antialiasing, true);
QGraphicsPixmapItem* pPixmapItem = scene.addPixmap(QPixmap("aBYKS749x88.jpg"));
pPixmapItem->setFlags(QGraphicsItem::ItemIsMovable);
for(int i = 0; i < 20; i++)
{
SimpleItem* pSimpleItem = new SimpleItem;
scene.addItem(pSimpleItem);
pSimpleItem->setPos(i*30, 0);
pSimpleItem->setFlags(QGraphicsItem::ItemIsMovable);
pSimpleItem->setParentItem(pPixmapItem);
}
QObject::connect(pcmdZoomIn, SIGNAL(clicked()), pView, SLOT(slotZoomIn()));
QObject::connect(pcmdZoomOut, SIGNAL(clicked()), pView, SLOT(slotZoomOut()));
QObject::connect(pcmdRotateLeft, SIGNAL(clicked()), pView, SLOT(slotRotateLeft()));
QObject::connect(pcmdRotateRight,SIGNAL(clicked()), pView, SLOT(slotRotateRight()));
QVBoxLayout* pvbxLayout = new QVBoxLayout;
pvbxLayout->addWidget(pView);
pvbxLayout->addWidget(pcmdZoomIn);
pvbxLayout->addWidget(pcmdZoomOut);
pvbxLayout->addWidget(pcmdRotateLeft);
pvbxLayout->addWidget(pcmdRotateRight);
wgt.setLayout(pvbxLayout);
wgt.show();
return app.exec();
}
int main (int argc, char** argv)
{
QApplication app(argc, argv);
QGraphicsScene scene(QRectF(-200, -200, 300, 300));
QWidget wgt;
MyView* pView = new MyView(&scene);
pView->setRenderHint(QPainter::Antialiasing, true);
wgt.show();
//wgt.setLayout(&lay);
//scene.addWidget(pView);
//wgt.show();
// view.show();
//pView->show();
//wgt.show();
// QGraphicsPixmapItem* pPixmapItem =
// scene.addPixmap(QPixmap("haus.jpg"));
// pPixmapItem->setFlags(QGraphicsItem::ItemIsMovable);
// QGraphicsTextItem* pTextItem =
// scene.addText("Move us with your mouse");
// pTextItem->setFlags(QGraphicsItem::ItemIsMovable);
// pTextItem->setParentItem(pPixmapItem);
// QGraphicsLineItem* pLineItem =
// scene.addLine(QLineF(-10, -10, -80, -80), QPen(Qt::red, 2));
// pLineItem->setFlags(QGraphicsItem::ItemIsMovable);
// view.show();
// QWidget wgt;
// QGraphicsScene scene2(QRectF(-100, -100, 640, 480));
// //MyView* pView = new MyView(&scene2);
// MyView* pView = new MyView(&scene);
// QPushButton* pcmdZoomIn = new QPushButton("&Zoom In");
// QPushButton* pcmdZoomOut = new QPushButton("Z&oom Out");
// QPushButton* pcmdRotateLeft = new QPushButton("&Rotate Left");
// QPushButton* pcmdRotateRight = new QPushButton("Ro&tate Right");
// pView->setRenderHint(QPainter::Antialiasing, true);
// SimpleItem* pSimpleItem = new SimpleItem();
// scene2.addItem(pSimpleItem);
// pSimpleItem->setPos(0, 0);
// pSimpleItem->setFlags(QGraphicsItem::ItemIsMovable);
// QGraphicsPixmapItem* pPixmapItem2 =
// scene2.addPixmap(QPixmap("haus.jpg"));
// pPixmapItem2->setParentItem(pSimpleItem);
// pPixmapItem2->setFlags(QGraphicsItem::ItemIsMovable);
// QObject::connect(pcmdZoomIn, SIGNAL(clicked()),pView, SLOT(slotZoomIn()));
// QObject::connect(pcmdZoomOut, SIGNAL(clicked()),pView, SLOT(slotZoomOut()));
// QObject::connect(pcmdRotateLeft, SIGNAL(clicked()),pView, SLOT(slotRotateLeft()));
// QObject::connect(pcmdRotateRight, SIGNAL(clicked()),pView, SLOT(slotRotateRight()));
// //Layout setup
// QVBoxLayout* pvbxLayout = new QVBoxLayout;
// pvbxLayout->addWidget(pView);
// pvbxLayout->addWidget(pcmdZoomIn);
// pvbxLayout->addWidget(pcmdZoomOut);
// pvbxLayout->addWidget(pcmdRotateLeft);
// pvbxLayout->addWidget(pcmdRotateRight);
// wgt.setLayout(pvbxLayout);
// wgt.show();
// QGraphicsScene scene3(QRectF(0, 0, 400, 400));
// QGraphicsView view3(&scene3);
// QPushButton cmd("Quit");
// QGraphicsProxyWidget* pproxyWidget = scene3.addWidget(&cmd);
// QTransform transform = pproxyWidget->transform();
// transform.translate(100, 350);
// transform.rotate(-45, Qt::YAxis);
// transform.scale(8, 2);
// pproxyWidget->setTransform(transform);
// QObject::connect(&cmd, SIGNAL(clicked()), &app, SLOT(quit()));
// QDial dia;
// QLineEdit* line = new QLineEdit;
// line->setText(QString("OLOLOLo I'm a student"));
// dia.setNotchesVisible(true);
// pproxyWidget = scene3.addWidget(&dia);
// transform = pproxyWidget->transform();
// transform.scale(4, 2);
// transform.rotate(-45, Qt::YAxis);
// pproxyWidget->setTransform(transform);
// pproxyWidget = scene3.addWidget(line);
// transform = pproxyWidget->transform();
// transform.translate(150, 300);
// transform.scale(5, 5);
// transform.rotate(80, Qt::YAxis);
// transform.rotate(30, Qt::XAxis);
// pproxyWidget->setTransform(transform);
// QProgressBar prb;
// prb.setFixedSize(500, 40);
// pproxyWidget = scene3.addWidget(&prb);
// transform = pproxyWidget->transform();
// transform.translate(200, 200);
// transform.scale(2, 2);
// transform.rotate(80, Qt::YAxis);
// transform.rotate(30, Qt::XAxis);
// pproxyWidget->setTransform(transform);
// QObject::connect(&dia, SIGNAL(valueChanged(int)),&prb, SLOT(setValue(int)));
// QObject::connect(&dia, SIGNAL(valueChanged(int)),line, SLOT(setText(int)));
return app.exec();
}
