QT之常用按钮组件

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#include "widget.h"
#include "ui_widget.h"Widget::Widget(QWidget *parent) :QWidget(parent),ui(new Ui::Widget)
{ui->setupUi(this);
}Widget::~Widget()
{delete ui;
}void Widget::on_pushButton_clicked()
{ui->lineEdit->setAlignment(Qt::AlignLeft);
}void Widget::on_pushButton_2_clicked()
{ui->lineEdit->setAlignment(Qt::AlignCenter);
}void Widget::on_pushButton_3_clicked()
{ui->lineEdit->setAlignment(Qt::AlignRight);
}void Widget::on_pushButton_4_clicked(bool checked)
{QFont font = ui->lineEdit->font();font.setBold(checked);ui->lineEdit->setFont(font);
}void Widget::on_pushButton_5_clicked(bool checked)
{QFont font = ui->lineEdit->font();font.setItalic(checked);ui->lineEdit->setFont(font);
}void Widget::on_pushButton_6_clicked(bool checked)
{QFont font = ui->lineEdit->font();font.setUnderline(checked);ui->lineEdit->setFont(font);
}void Widget::on_checkBox_clicked(bool checked)
{ui->lineEdit->setReadOnly(checked);
}void Widget::on_checkBox_2_clicked(bool checked)
{ui->lineEdit->setEnabled(checked);
}void Widget::on_checkBox_3_clicked(bool checked)
{ui->lineEdit->setClearButtonEnabled(checked);
}void Widget::on_radioButton_clicked()
{QPalette plet = ui->lineEdit->palette();plet.setColor(QPalette::Text,Qt::black);ui->lineEdit->setPalette(plet);
}void Widget::on_radioButton_2_clicked()
{QPalette plet = ui->lineEdit->palette();plet.setColor(QPalette::Text,Qt::red);ui->lineEdit->setPalette(plet);
}void Widget::on_radioButton_3_clicked()
{QPalette plet = ui->lineEdit->palette();plet.setColor(QPalette::Text,Qt::blue);ui->lineEdit->setPalette(plet);
}