我正在尝试在MainWindow中使用QGraphicsView和QOpenGLWidget: 究竟: 我的QMainWindow包含一些布局和小部件。还有一个QGraphicsView(类GraphicsView继承自QGraphicsView)。
在“第二”步骤中,我创建一个QGraphicsScene并添加一个openglwidget(类OpenGLControl继承自QOpenGLWidget)。在OpenGLControl中,我只设置了背景来测试我的应用程序(glClearColor ...)。
现在我的请求,当我改变mainWindow的大小时,我也想改变QGraphicsView,QGraphicsScene和QOpenGLWidget的大小。我在graphicsView中尝试了一个resizeEvent,但它没有用。
主窗口(.cpp)的实现:
#include "mainwindow.h"
#include "openglcontrol.h"
#include "graphicsview.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
createLayout();
createScene();
}
void MainWindow::createLayout()
{
view = new graphicsView;
kosGrid = new QGridLayout;
xKoord = new QLineEdit;
yKoord = new QLineEdit;
zKoord = new QLineEdit;
drawButton = new QPushButton("Draw Point");
clearButton = new QPushButton("Clear");
KoordLabel = new QLabel("Koordinaten");
xLabel = new QLabel("X:");
yLabel = new QLabel("Y: ");
zLabel = new QLabel("Z: ");
controlBox = new QVBoxLayout;
controlBox->addStretch(1);
controlBox->addWidget(KoordLabel);
xhBox = new QHBoxLayout;
xhBox->addWidget(xLabel);
xhBox->addWidget(xKoord);
controlBox->addLayout(xhBox);
yhBox = new QHBoxLayout;
yhBox->addWidget(yLabel);
yhBox->addWidget(yKoord);
controlBox->addLayout(yhBox);
zhBox = new QHBoxLayout;
zhBox->addWidget(zLabel);
zhBox->addWidget(zKoord);
controlBox->addLayout(zhBox);
controlBox->addWidget(drawButton);
controlBox->addWidget(clearButton);
xKoord->setFixedWidth(50);
yKoord->setFixedWidth(50);
zKoord->setFixedWidth(50);
drawButton->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
xKoord->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
yKoord->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
zKoord->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
hBox = new QHBoxLayout;
hBox->addLayout(controlBox);
hBox->addWidget(view);
mainLayout = new QWidget;
mainLayout->setLayout(hBox);
setCentralWidget(mainLayout);
}
void MainWindow::createScene()
{
scene = new QGraphicsScene(this);
qsurface = new QSurfaceFormat;
qsurface->setRenderableType(QSurfaceFormat::OpenGL);
qsurface->setProfile(QSurfaceFormat::CoreProfile);
qsurface->setVersion(3,3);
oglwidget = new OpenGLControl;
oglwidget->setFormat(*qsurface);
oglwidget->
//oglwidget->resize(10,10);
scene->addWidget(oglwidget);
view->setScene(scene);
}
和我对resizeEvent的尝试:
void graphicsView::resizeEvent(QResizeEvent *event)
{
if(scene())
scene()->setSceneRect(QRect(QPoint(0,0), event->size()));
QGraphicsView::resizeEvent(event);
}
最后一个(调整大小的)mainWindow的截图(QOpenGLWidget(蓝色背景)小于QGraphicsView) mainWindow with QOpenGLWidget
我可以使用SIGNAL吗?或者有人可以用另一种方式帮助我吗? 谢谢