‘’Qt:Alignment国旗‘[-fpermissive]

Question

我是新来的Qt。

当我编译下面的代码时，在/1/、/2/、/3/、/4/和/5/< code >E29行中，我会得到错误的“从'int‘Qt：：对齐标志’Qt中的无效转换”。

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QtWidgets>

MainWindow::MainWindow() {
    createGridGroupBox();

    QVBoxLayout *mainLayout = new QVBoxLayout;

    mainLayout -> addWidget(gridGroupBox);

    setLayout(mainLayout);

    setWindowTitle(tr("Layout Örneği"));

    resize(600,600);
}

void MainWindow::createGridGroupBox() {
    QHBoxLayout *layout = new QHBoxLayout;

    gridGroupBox = new QGroupBox(tr("Grid Layout"));

    label1 = new QLabel(tr("Kaynak Resmin Yolu: ").arg(1));
    layout -> addWidget(label1, 0, 0);

    lineEdit1 = new QLineEdit;
/*1*/   layout -> addWidget(lineEdit1, 0, 1);

    label2 = new QLabel(tr("Kaynak Resmin Görseli: ").arg(2));
    layout -> addWidget(label2, 1, 0);

    /*label3 = new QLabel(tr("Şablon Resmin Yolu: ").arg(3));
    layout -> addWidget(label3, 2, 0);*/

    label4 = new QLabel(tr("Şablon Resmin Yolu: ").arg(4));
    layout -> addWidget(label4, 3, 0);

    lineEdit2 = new QLineEdit;
/*2*/    layout -> addWidget(lineEdit2, 3, 1);

    label5 = new QLabel(tr("Şablon Resmin Görseli: ").arg(5));
    layout -> addWidget(label5, 4, 0);

    /*label6 = new QLabel(tr("Kaynak Resmin Yolu: ").arg(6));
    layout -> addWidget(label6, 5, 0);*/

    label7 = new QLabel(tr("Şablon Eşleştirme İşleminin Sonucunun Görseli: ").arg(7));
/*3*/    layout -> addWidget(label7, 0, 2);

    /*label8 = new QLabel(tr("Şablon Eşleştirme İşleminin Sonucunun Görseli: ").arg(8));
    layout -> addWidget(label8, 1, 2, 4, 1);*/

/*4*/    label9 = new QLabel(tr("Sonuç: ").arg(9));
    layout -> addWidget(label9, 2, 2);

    lineEdit3 = new QLineEdit;
/*5*/    layout -> addWidget(lineEdit3, 2, 3);

    gridGroupBox -> setLayout(layout);
}

Answer 1

这个错误是意料之中的。

addWidget()类的QHBoxLayout函数定义为：

void addWidget(QWidget * widget, int stretch = 0, Qt::Alignment alignment = 0)

也许你是想用QGridLayout