QT制作十进制ASCII转换工具和源码

#include "widget.h" #include <QObject> Widget::Widget(QWidget *parent) : QWidget(parent) { this->resize(600, 300); this->setFixedSize(600, 300); this->setWindowTitle("ASCII CONVERT"); In_Lable.setParent(this); //放进窗口 In_Lable.resize(200,50); //设置按钮大小 In_Lable.setText("请输入Dec"); In_Lable.move(0,0); //移动按钮 Out_Dec_Lable.setParent(this); //放进窗口 Out_Dec_Lable.resize(200,50); //设置按钮大小 Out_Dec_Lable.setText("字符"); Out_Dec_Lable.move(200,0); //移动按钮 Out_Hex_Lable.setParent(this); //放进窗口 Out_Hex_Lable.resize(200,50); //设置按钮大小 Out_Hex_Lable.setText("Hex"); Out_Hex_Lable.move(400,0); //移动按钮 In_Edit.setParent(this); //放进窗口 In_Edit.resize(200,200); //设置按钮大小 In_Edit.move(0,50); //移动按钮 Out_Char_Edit.setParent(this); //放进窗口 Out_Char_Edit.resize(200,200); //设置按钮大小 Out_Char_Edit.move(200,50); //移动按钮 Out_Hex_Edit.setParent(this); //放进窗口 Out_Hex_Edit.resize(200,200); //设置按钮大小 Out_Hex_Edit.move(400,50); //移动按钮 Get_Button.setParent(this); //放进窗口 Get_Button.setText("确定"); //设置按钮文字 Get_Button.resize(200,50); //设置按钮大小 Get_Button.move(0,250); //移动按钮 Example_Button.setParent(this); //放进窗口 Example_Button.setText("例子"); //设置按钮文字 Example_Button.resize(200,50); //设置按钮大小 Example_Button.move(200,250); //移动按钮 Clear_Button.setParent(this); //放进窗口 Clear_Button.setText("清除"); //设置按钮文字 Clear_Button.resize(200,50); //设置按钮大小 Clear_Button.move(400,250); //移动按钮 connect(&Get_Button, &QPushButton::clicked, this, &Widget::Get_Button_clicked); connect(&Example_Button, &QPushButton::clicked, this, &Widget::Example_Button_clicked); connect(&Clear_Button, &QPushButton::clicked, this, &Widget::Clear_clicked); connect(&In_Edit, &QTextEdit::textChanged, this, &Widget::In_Edit_clicked); } Widget::~Widget() { } Widget::In_Edit_clicked() { //只能输入数字 QRegExp reg; reg.setPattern("^[0-9,]+$"); QString strText = In_Edit.toPlainText(); if (reg.exactMatch(strText)) { m_symtext = strText; } else { if(strText.length() > 0) { int offset = strText.length() - m_symtext.length(); //改变光标的位置 QTextCursor cursor = In_Edit.textCursor(); auto pos = cursor.position(); pos = pos >= offset ? pos - offset : pos; In_Edit.setText(m_symtext); cursor.setPosition(pos); In_Edit.setTextCursor(cursor); } } return 0; } Widget::Example_Button_clicked() { disconnect(&In_Edit, &QTextEdit::textChanged, this, &Widget::In_Edit_clicked); Clear_clicked(); In_Edit.append("49"); Get_Button_clicked(); connect(&In_Edit, &QTextEdit::textChanged, this, &Widget::In_Edit_clicked); return 0; } Widget::Get_Button_clicked() { QString input_string = In_Edit.toPlainText(); uint32_t buff = 0; if(input_string.length() > 0) { buff = input_string.toInt(0, 10); if(buff > 127) { Out_Char_Edit.setText("输入的值不在ASCII范围"); } else { Out_Hex_Edit.setText(QString("0x%1").arg(buff, 0, 16)); Out_Char_Edit.setText((QString)buff); } } else { In_Edit.setText("请输入字符"); } return 0; } Widget::Clear_clicked() { In_Edit.clear(); Out_Hex_Edit.clear(); Out_Char_Edit.clear(); return 0; }