在 QGraphicsScene 中显示加载的图像时出现问题。
CTextBox::CTextBox(QWidget* parent /* = NULL */)
{
QPixmap image;
image.load("basketball.png");
grid = new QGridLayout();
grid->setSpacing(1);
textBrowser = new QTextEdit(this);
treeView = new QTreeView;
treeLabel = new QLabel;
treeLabel->setText("Tree View:");
debugLabel = new QLabel;
debugLabel->setText("Debug:");
standardModel = new QStandardItemModel;
rootNode = standardModel->invisibleRootItem();
treeView->setModel(standardModel);
QGraphicsPixmapItem pixmapitem(image);
//scene.addText("Graphics");
scene.addItem(&pixmapitem);
//rect = scene.addRect(QRectF(0,0, 100, 100));
//QGraphicsItem *item = scene.itemAt(50, 50);
widget = new QWidget();
view = new QGraphicsView;
view->setScene(&scene);
view->setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
//proxy = scene.addWidget(widget);
//label = new QLabel();
grid->addWidget(textBrowser, 1, 0);
grid->addWidget(debugLabel, 0, 0);
grid->addWidget(treeView, 1, 1);
grid->addWidget(treeLabel, 0, 1);
//grid->addWidget(&image, 2,0);
//grid->addWidget(view, 2, 0);
//grid->addWidget(widget, 2, 0);
//grid->addWidget(proxy, 2,0);
view->show();
//widget->setLayout(view);
//widget->show();
setLayout(grid);
//label->addItem()
}
基本上，当我尝试在 QGraphicsScene 中加载图像时，它似乎会放大到图像的大小，但会显示白屏。我可以很好地将文本添加到图形场景中，并且可以正确显示。现在，如果我尝试将图像添加到不同小部件上的标签中，它会显示得很好。任何想法为什么？
干杯。