QT常用对话框

最新推荐文章于 2025-03-19 09:00:00 发布

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最新推荐文章于 2025-03-19 09:00:00 发布

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分类专栏： QT6 文章标签： qt

本文链接：https://blog.youkuaiyun.com/gopher9511/article/details/141310893

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QT常用对话框
- 颜色选择对话框 QColorDialog
字体选择对话框 QFontDialog
输入对话框 QInputDialog
消息对话框 QMessageBox

QT常用对话框

颜色选择对话框 QColorDialog

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QPushButton>
#include <QColorDialog>
#include <QGridLayout>
#include <QFrame>
QT_BEGIN_NAMESPACE
namespace Ui {
class Dialog;
}
QT_END_NAMESPACE

class Dialog : public QDialog
{
    Q_OBJECT

public:
    Dialog(QWidget *parent = nullptr);
    ~Dialog();

private:
    Ui::Dialog *ui;
    QPushButton *colorButton;
    QGridLayout *layout;
    QFrame *frame; //QFrame类是用来创建矩形框的，可以设置边框、背景颜色等属性
private slots:
    void on_colorButton_clicked();
};
#endif // DIALOG_H

#include "dialog.h"
#include "./ui_dialog.h"

Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
    , ui(new Ui::Dialog)
{
    ui->setupUi(this);
    setWindowTitle("Color Picker");

    layout =new QGridLayout(this);

    colorButton = new QPushButton("Color" );
    frame = new QFrame();
    frame->setAutoFillBackground(true);//设置背景颜色
    frame->setFrameShape(QFrame::Box);

    layout->addWidget(colorButton,0,0);
    layout->addWidget(frame,0,1);

    connect(colorButton, SIGNAL(clicked()),
            this, SLOT(on_colorButton_clicked()));
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::on_colorButton_clicked(){
    QColor color = QColorDialog::getColor();
    if(color.isValid()){
        frame->setStyleSheet("background-color: "+color.name());
    }
    this->setStyleSheet("background-color: "+color.name());
}

字体选择对话框 QFontDialog

#ifndef DIALOG_H
#define DIALOG_H
//字体对话框测试
#include <QDialog>
#include <QFontDialog>
#include <QPushButton>
#include <QBoxLayout>
#include <QLineEdit>
QT_BEGIN_NAMESPACE
namespace Ui {
class Dialog;
}
QT_END_NAMESPACE

class Dialog : public QDialog
{
    Q_OBJECT

public:
    Dialog(QWidget *parent = nullptr);
    ~Dialog();

private:
    Ui::Dialog *ui;
    QPushButton *button;
    QLineEdit *label;
private slots:
    void on_pushButton_clicked();
};
#endif // DIALOG_H

#include "dialog.h"
#include "./ui_dialog.h"

Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
    , ui(new Ui::Dialog)
{
    ui->setupUi(this);

    QHBoxLayout *layout = new QHBoxLayout(this);

    button = new QPus