正文
Qt编写自定义控件69-代码行数统计
提示：扫一扫查出行【扫一扫了解最新限行尾号】
复制提示
一、前言
代码行数统计主要用来统计项目中的所有文件的代码行数，其中包括空行、注释行、代码行，可以指定过滤拓展名，比如只想统计.cpp的文件，也可以指定文件或者指定目录进行统计。写完这个工具第一件事情就是统计了一下自己写过的最大的项目大概多少行代码，看下是不是传说中的一行代码一块钱，这个最大的项目从2010年开始的，到现在差不多快10年了，是自己在现在公司写过的最大的项目，一直在升级更新完善，途中重构过两次，大的结构改动，统计了下好像有15W行左右的代码，纯代码大概在10W，其余是空行和注释行，着实把自己吓了一跳，还算是中型项目了，然后又统计了下自定义控件的所有代码，我勒个去，总代码23W行，纯代码17W行呢，哎呀我去！
开源地址：https://gitee.com/feiyangqingyun/QWidgetDemo https://github.com/feiyangqingyun/QWidgetDemo
二、实现的功能- 1:可分别统计代码行/空行/注释行
- 2:支持指定过滤拓展名
- 3:支持指定文件或者指定目录进行统计
- 4:分步显示统计结果,不卡主界面
- 5:分别展示每个统计过的文件的大小/总行数/代码行数等
三、效果图
四、头文件代码
#ifndef FRMCOUNTCODE_H
#define FRMCOUNTCODE_H#include <QWidget>namespace Ui {
class frmCountCode;
}class frmCountCode : public QWidget
{
Q_OBJECTpublic:
explicit frmCountCode(QWidget *parent = 0);
~frmCountCode();private:
Ui::frmCountCode *ui;
QStringList listFile;private:
void initForm();
bool checkFile(const QString &fileName);
void countCode(const QString &filePath);
void countCode(const QStringList &files);
void countCode(const QString &fileName, int &lineCode, int &lineBlank, int &lineNotes);private slots:
void on_btnOpenFile_clicked();
void on_btnOpenPath_clicked();
void on_btnClear_clicked();
};#endif // FRMCOUNTCODE_H
五、核心代码
#pragma execution_character_set("utf-8")#include "frmcountcode.h"
#include "ui_frmcountcode.h"
#include "qfile.h"
#include "qtextstream.h"
#include "qfiledialog.h"
#include "qfileinfo.h"
#include "qdebug.h"frmCountCode::frmCountCode(QWidget *parent) : QWidget(parent), ui(new Ui::frmCountCode)
{
ui->setupUi(this);
this->initForm();
on_btnClear_clicked();
}frmCountCode::~frmCountCode()
{
delete ui;
}void frmCountCode::initForm()
{
QStringList headText;
headText << "文件名" << "类型" << "大小" << "总行数" << "代码行数" << "注释行数" << "空白行数" << "路径";
QList<int> columnWidth;
columnWidth << 130 << 50 << 70 << 80 << 70 << 70 << 70 << 150; int columnCount = headText.count();
ui->tableWidget->setColumnCount(columnCount);
ui->tableWidget->setHorizontalHeaderLabels(headText);
ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
ui->tableWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
ui->tableWidget->verticalHeader()->setVisible(false);
ui->tableWidget->horizontalHeader()->setStretchLastSection(true);
ui->tableWidget->horizontalHeader()->setHighlightSections(false);
ui->tableWidget->verticalHeader()->setDefaultSectionSize(20);
ui->tableWidget->verticalHeader()->setHighlightSections(false); for (int i = 0; i < columnCount; i++) {
ui->tableWidget->setColumnWidth(i, columnWidth.at(i));
} //设置前景色
ui->txtCount->setStyleSheet("color:#17A086;");
ui->txtSize->setStyleSheet("color:#CA5AA6;");
ui->txtRow->setStyleSheet("color:#CD1B19;");
ui->txtCode->setStyleSheet("color:#22A3A9;");
ui->txtNote->setStyleSheet("color:#D64D54;");
ui->txtBlank->setStyleSheet("color:#A279C5;"); //设置字体加粗
QFont font;
font.setBold(true);
if (font.pointSize() > 0) {
font.setPointSize(font.pointSize() + 1);
} else {
font.setPixelSize(font.pixelSize() + 2);
} ui->txtCount->setFont(font);
ui->txtSize->setFont(font);
ui->txtRow->setFont(font);
ui->txtCode->setFont(font);
ui->txtNote->setFont(font);
ui->txtBlank->setFont(font);#if (QT_VERSION > QT_VERSION_CHECK(4,7,0))
ui->txtFilter->setPlaceholderText("中间空格隔开,例如 *.h *.cpp *.c");
#endif
}bool frmCountCode::checkFile(const QString &fileName)
{
if (fileName.startsWith("moc_") || fileName.startsWith("ui_") || fileName.startsWith("qrc_")) {
return false;
} QFileInfo file(fileName);
QString suffix = "*." + file.suffix();
QString filter = ui->txtFilter->text().trimmed();
QStringList filters = filter.split(" ");
return filters.contains(suffix);
}void frmCountCode::countCode(const QString &filePath)
{
QDir dir(filePath);
foreach (QFileInfo fileInfo , dir.entryInfoList()) {
if (fileInfo.isFile()) {
QString strFileName = fileInfo.fileName();
if (checkFile(strFileName)) {
listFile << fileInfo.filePath();
}
} else {
if(fileInfo.fileName() == "." || fileInfo.fileName() == "..") {
continue;
} //递归找出文件
countCode(fileInfo.absoluteFilePath());
}
}
}void frmCountCode::countCode(const QStringList &files)
{
int lineCode;
int lineBlank;
int lineNotes;
int count = files.count();
on_btnClear_clicked();
ui->tableWidget->setRowCount(count); quint32 totalLines = 0;
quint32 totalBytes = 0;
quint32 totalCodes = 0;
quint32 totalNotes = 0;
quint32 totalBlanks = 0; for (int i = 0; i < count; i++) {
QFileInfo fileInfo(files.at(i));
countCode(fileInfo.filePath(), lineCode, lineBlank, lineNotes);
int lineAll = lineCode + lineBlank + lineNotes; QTableWidgetItem *itemName = new QTableWidgetItem;
itemName->setText(fileInfo.fileName()); QTableWidgetItem *itemSuffix = new QTableWidgetItem;
itemSuffix->setText(fileInfo.suffix()); QTableWidgetItem *itemSize = new QTableWidgetItem;
itemSize->setText(QString::number(fileInfo.size())); QTableWidgetItem *itemLine = new QTableWidgetItem;
itemLine->setText(QString::number(lineAll)); QTableWidgetItem *itemCode = new QTableWidgetItem;
itemCode->setText(QString::number(lineCode)); QTableWidgetItem *itemNote = new QTableWidgetItem;
itemNote->setText(QString::number(lineNotes)); QTableWidgetItem *itemBlank = new QTableWidgetItem;
itemBlank->setText(QString::number(lineBlank)); QTableWidgetItem *itemPath = new QTableWidgetItem;
itemPath->setText(fileInfo.filePath()); itemSuffix->setTextAlignment(Qt::AlignCenter);
itemSize->setTextAlignment(Qt::AlignCenter);
itemLine->setTextAlignment(Qt::AlignCenter);
itemCode->setTextAlignment(Qt::AlignCenter);
itemNote->setTextAlignment(Qt::AlignCenter);
itemBlank->setTextAlignment(Qt::AlignCenter); ui->tableWidget->setItem(i, 0, itemName);
ui->tableWidget->setItem(i, 1, itemSuffix);
ui->tableWidget->setItem(i, 2, itemSize);
ui->tableWidget->setItem(i, 3, itemLine);
ui->tableWidget->setItem(i, 4, itemCode);
ui->tableWidget->setItem(i, 5, itemNote);
ui->tableWidget->setItem(i, 6, itemBlank);
ui->tableWidget->setItem(i, 7, itemPath); totalBytes += fileInfo.size();
totalLines += lineAll;
totalCodes += lineCode;
totalNotes += lineNotes;
totalBlanks += lineBlank; if (i % 100 == 0) {
qApp->processEvents();
}
} //显示统计结果
listFile.clear();
ui->txtCount->setText(QString::number(count));
ui->txtSize->setText(QString::number(totalBytes));
ui->txtRow->setText(QString::number(totalLines));
ui->txtCode->setText(QString::number(totalCodes));
ui->txtNote->setText(QString::number(totalNotes));
ui->txtBlank->setText(QString::number(totalBlanks)); //计算百分比
double percent = 0.0;
//代码行所占百分比
percent = ((double)totalCodes / totalLines) * 100;
ui->labPercentCode->setText(QString("%1%").arg(percent, 5, 'f', 2, QChar(' ')));
//注释行所占百分比
percent = ((double)totalNotes / totalLines) * 100;
ui->labPercentNote->setText(QString("%1%").arg(percent, 5, 'f', 2, QChar(' ')));
//空行所占百分比
percent = ((double)totalBlanks / totalLines) * 100;
ui->labPercentBlank->setText(QString("%1%").arg(percent, 5, 'f', 2, QChar(' ')));
}void frmCountCode::countCode(const QString &fileName, int &lineCode, int &lineBlank, int &lineNotes)
{
lineCode = lineBlank = lineNotes = 0;
QFile file(fileName);
if (file.open(QFile::ReadOnly)) {
QTextStream out(&file);
QString line;
bool isNote = false;
while (!out.atEnd()) {
line = out.readLine(); //移除前面的空行
if (line.startsWith(" ")) {
line.remove(" ");
} //判断当前行是否是注释
if (line.startsWith("/*")) {
isNote = true;
} //注释部分
if (isNote) {
lineNotes++;
} else {
if (line.startsWith("//")) { //注释行
lineNotes++;
} else if (line.isEmpty()) { //空白行
lineBlank++;
} else { //代码行
lineCode++;
}
} //注释结束
if (line.endsWith("*/")) {
isNote = false;
}
}
}
}void frmCountCode::on_btnOpenFile_clicked()
{
QString filter = QString("代码文件(%1)").arg(ui->txtFilter->text().trimmed());
QStringList files = QFileDialog::getOpenFileNames(this, "选择文件", "./", filter);
if (files.size() > 0) {
ui->txtFile->setText(files.join("|"));
countCode(files);
}
}void frmCountCode::on_btnOpenPath_clicked()
{
QString path = QFileDialog::getExistingDirectory(this, "选择目录", "./", QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
if (!path.isEmpty()) {
ui->txtPath->setText(path);
listFile.clear();
countCode(path);
countCode(listFile);
}
}void frmCountCode::on_btnClear_clicked()
{
ui->txtCount->setText("0");
ui->txtSize->setText("0");
ui->txtRow->setText("0"); ui->txtCode->setText("0");
ui->txtNote->setText("0");
ui->txtBlank->setText("0"); ui->labPercentCode->setText("0%");
ui->labPercentNote->setText("0%");
ui->labPercentBlank->setText("0%");
ui->tableWidget->setRowCount(0);
}
