小功能--画一个矩形框里面贴图片

本文介绍了一个使用Qt框架创建的图形场景编辑器的具体实现过程。该编辑器通过CSelectDlg对话框展示，并利用QGraphicsScene类实现了自定义的图形显示区域。文中详细展示了如何设置图形场景范围、添加矩形元素并设置填充纹理等步骤。

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CSelectDlg::CSelectDlg(QWidget * parent,Qt::WFlags flags)
: QDialog(parent,flags)
{
m_pUI = new Ui::SelectDialog();
m_pUI->setupUi(this);

m_GraphicScene = new QGraphicsScene(m_pUI->graphicsView);
m_GraphicScene->setSceneRect(-50,-15,100,30);
m_pUI->graphicsView->setScene(m_GraphicScene);

//Qt::PenStyle penStyle = ::TranslateOSGLineStyleToQtPenStyle(m_iosglineStyle);
//QPen pen( QColor(255,0,0), 5, Qt::PenStyle::SolidLine, Qt::FlatCap);
//m_GraphicScene->clear();
//m_GraphicScene->addLine(-50,0,50,0,pen);
//m_pUI->graphicsView->show();

QRectF recf;
QBrush brush;
QBrush brush2;
QGraphicsRectItem *rt = new QGraphicsRectItem(QRectF(50,100,100,100));
recf.setRect(20,50,50,50);
rt->setRect(recf);

//brush2.setColor(QColor(255,0,0));
QPen pen(QColor(255,0,0),5, Qt::PenStyle::SolidLine);
rt->setPen(pen);

QPixmap pixMap(::GetImagePath() + "basemap2.jpg");
brush.setTexture(pixMap);
rt->setBrush(brush);

m_GraphicScene->addItem(rt);
m_pUI->graphicsView->show();

connect(m_pUI->pushButton_Oil, SIGNAL(clicked()), this, SLOT(accept()) );
connect(m_pUI->pushButton_Sand,SIGNAL(clicked()), this, SLOT(reject()) );
}