QLineFDemo.rar

/** ****************************************************************************** * @link https://blog.csdn.net/sy_lixiang * @author EMMA * @version V1.0.0 * @date 2024.09.11 * @brief 转载请注明出处 ****************************************************************************** */ #include "qlinefdemo.h" #include <QIcon> #include "drawangle.h" #include "drawangleto.h" #include "drawfrompolar.h" #include "drawintersect.h" #include "drawlength.h" #include "drawnormalvector.h" #include "drawpointat.h" #include "drawtoline.h" #include "drawunitvector.h" QLineFDemo::QLineFDemo(QWidget *parent) : QWidget(parent) { //设置窗体标题 setWindowTitle(tr("CH2104，Qt基础类之QLineF浮点直线类")); //设置窗体图标 QString iconPath="E:\\Git-workdir\\learn_QT5\\learn_-qt5\\QT5\\CH21\\CH2104\\QLineFDemo\\"; QString iconFileName="application-one.png"; QString iconFullPath=iconPath+iconFileName; setWindowIcon(QIcon(iconFullPath)); //左侧GroupBox leftGroupBox=new QGroupBox(); leftGroupBox->setTitle(tr("成员函数")); //右上GroupBox rightTopGroupBox=new QGroupBox(); rightTopGroupBox->setTitle(tr("非成员函数")); //右下GroupBox rightBottomGroupBox=new QGroupBox(); rightBottomGroupBox->setTitle(tr("QLineF帮助")); //左侧功能按钮设置 btnAngle=new QPushButton(); btnAngle->setText(tr("qreal QLineF::angle() const")); btnAngleTo=new QPushButton(); btnAngleTo->setText(tr("qreal QLineF::angleTo(const QLineF &&line) const")); btnFromPolar=new QPushButton(); btnFromPolar->setText(tr("[static] QLineF QLineF::fromPolar(qreal length, qreal angle)")); btnIntersect=new QPushButton(); btnIntersect->setText(tr("QLineF::IntersectType QLineF::intersect(const QLineF &&line, QPointF *intersectionPoint) const")); btnLength=new QPushButton(); btnLength->setText(tr("qreal QLineF::length() const")); btnNormalVector=new QPushButton(); btnNormalVector->setText(tr("QLineF QLineF::normalVector() const")); btnPointAt=new QPushButton(); btnPointAt->setText(tr("QPointF QLineF::pointAt(qreal t) const")); btnToLine=new QPushButton(); btnToLine->setText(tr("QLine QLineF::toLine() const")); btnUnitVector=new QPushButton(); btnUnitVector->setText(tr("QLineF QLineF::unitVector() const")); //右上功能按钮设置 btnOperator1=new QPushButton(); btnOperator1->setText(tr("QDataStream &&operator<<(QDataStream &&stream, const QLineF &&line)")); btnOperator2=new QPushButton(); btnOperator2->setText(tr("QDataStream &&operator>>(QDataStream &&stream, QLineF &&line)")); //多文本框设置 textEdit=new QTextEdit(); textEdit->setText(tr("QLineF类提供一个使用浮点精度的二维向量。")); textEdit->append(tr("")); textEdit->append(tr("QLineF描述了二维平面上的有限长度的线(或线段)。QLineF使用坐标的浮点精度定义行的起点和终点。使用toLine()函数检索该行的整数副本。")); textEdit->append(tr("")); textEdit->append(tr("可以使用p1()， x1()， y1()， p2()， x2()和y2()函数检索行起始点和结束点的位置。dx()和dy()函数分别返回直线的水平和垂直分量。")); textEdit->append(tr("")); textEdit->append(tr("可以使用length()函数检索行长度，并使用setLength()函数更改行长度。类似地，angle()和setAngle()分别用于检索和更改线的角度。使用isNull()函数确定QLineF表示的是有效行还是空行。")); textEdit->append(tr("")); textEdit->append(tr("intersect()函数确定这条线和给定的线的IntersectType，而angleTo()函数返回这两条线之间的角度。此外，unitVector()函数返回的直线起点与这条直线相同，但长度只有1，而normalVector()函数返回的直线垂直于这条直线，起点和长度相同。")); textEdit->append(tr("")); textEdit->append(tr("最后，可以使用translate()函数将该行设置为给定的偏移量，并且可以使用pointAt()函数遍历该行。")); textEdit->append(tr("")); /*********左侧*********/ leftLayout=new QVBoxLayout; leftLayout->addWidget(btnAngle); leftLayout->addWidget(btnAngleTo); leftLayout->addWidget(btnFromPolar); leftLayout->addWidget(btnIntersect); leftLayout->addWidget(btnLength); leftLayout->addWidget(btnNormalVector); leftLayout->addWidget(btnPointAt); leftLayout->addWidget(btnToLine); leftLayout->addWidget(btnUnitVector); leftGroupBox->setLayout(leftLayout); /*********右上侧*********/ rightTopLayout=new QVBoxLayout; rightTopLayout->addWidget(btnOperator1); rightTopLayout->addWidget(btnOperator2); rightTopGroupBox->setLayout(rightTopLayout); /*********右下侧*********/ rightBottomLayout=new QVBoxLayout; rightBottomLayout->addWidget(textEdit,0,0); rightBottomGroupBox->setLayout(rightBottomLayout); /*********整体*********/ QGridLayout *mainLayout=new QGridLayout(this); mainLayout->addWidget(leftGroupBox,0,0,2,1); mainLayout->addWidget(rightTopGroupBox,0,1); mainLayout->addWidget(rightBottomGroupBox,1,1); this->setLayout(mainLayout); /*********connect函数*********/ connect(btnAngle,SIGNAL(clicked()),this,SLOT(on_pushButton_btnAngle_clicked())); connect(btnAngleTo,SIGNAL(clicked()),this,SLOT(on_pushButton_btnAngleTo_clicked())); connect(btnFromPolar,SIGNAL(clicked()),this,SLOT(on_pushButton_btnFromPolar_clicked())); connect(btnIntersect,SIGNAL(clicked()),this,SLOT(on_pushButton_btnIntersect_clicked())); connect(btnLength,SIGNAL(clicked()),this,SLOT(on_pushButton_btnLength_clicked())); connect(btnNormalVector,SIGNAL(clicked()),this,SLOT(on_pushButton_btnNormalVector_clicked())); connect(btnPointAt,SIGNAL(clicked()),this,SLOT(on_pushButton_btnPointAt_clicked())); connect(btnToLine,SIGNAL(clicked()),this,SLOT(on_pushButton_btnToLine_clicked())); connect(btnUnitVector,SIGNAL(clicked()),this,SLOT(on_pushButton_btnUnitVector_clicked())); } QLineFDemo::~QLineFDemo() { } void QLineFDemo::on_pushButton_btnAngle_clicked() { DrawAngle *da=new DrawAngle; da->show(); da->setWindowTitle(tr("函数Angle()")); da->setGeometry(1200,400,400,300); da->setFixedSize(800,400); } void QLineFDemo::on_pushButton_btnAngleTo_clicked() { DrawAngleTo *da=new DrawAngleTo; da->show(); da->setWindowTitle(tr("函数AngleTo()")); da->setGeometry(1200,400,400,300); da->setFixedSize(800,400); } void QLineFDemo::on_pushButton_btnFromPolar_clicked() { DrawFromPolar *dfp=new DrawFromPolar; dfp->show(); dfp->setWindowTitle(tr("函数fromPolar()")); dfp->setGeometry(1200,400,400,300); dfp->setFixedSize(800,400); } void QLineFDemo::on_pushButton_btnIntersect_clicked() { DrawIntersect *di=new DrawIntersect; di->show(); di->setWindowTitle(tr("函数intersect()")); di->setGeometry(1200,400,400,300); di->setFixedSize(800,400); } void QLineFDemo::on_pushButton_btnLength_clicked() { DrawLength *dl=new DrawLength; dl->show(); dl->setWindowTitle(tr("函数length()")); dl->setGeometry(1200,400,400,300); dl->setFixedSize(800,400); } void QLineFDemo::on_pushButton_btnNormalVector_clicked() { DrawNormalVector *dnv=new DrawNormalVector; dnv->show(); dnv->setWindowTitle(tr("函数normalVector()")); dnv->setGeometry(1200,400,400,300); dnv->setFixedSize(800,400); } void QLineFDemo::on_pushButton_btnPointAt_clicked() { DrawPointAt *dpa=new DrawPointAt; dpa->show(); dpa->setWindowTitle(tr("函数pointAt()")); dpa->setGeometry(1200,400,400,300); dpa->setFixedSize(80