C++

1 files changed, 220 insertions, 0 deletions

diff --git a/cpp/mainwindow.cpp b/cpp/mainwindow.cpp
new file mode 100644
index 0000000..4ad16f0
--- /dev/null
+++ b/cpp/mainwindow.cpp
@@ -0,0 +1,220 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include <QDir>
+#include <QDebug>
+#include <QProcess>
+#include <QRegExp>
+#include <QTextBlock>
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::changeEvent(QEvent *e)
+{
+    QMainWindow::changeEvent(e);
+    switch (e->type()) {
+    case QEvent::LanguageChange:
+        ui->retranslateUi(this);
+        break;
+    default:
+        break;
+    }
+}
+
+void MainWindow::on_quit_clicked()
+{
+   qApp->quit();
+}
+
+void MainWindow::findFiles(QString path)
+{
+    QDir currentDir = QDir(path);
+    QStringList files =
+        currentDir.entryList(QStringList("*.new"),
+            QDir::Files | QDir::NoSymLinks);
+    Q_FOREACH (QString f, files)
+    {
+        ui->files->addItem(path + "/" + f);
+    }
+
+    files =
+        currentDir.entryList(QStringList("*"),
+            QDir::Dirs | QDir::NoSymLinks
+            | QDir::NoDot | QDir::NoDotDot);
+    Q_FOREACH (QString dir, files)
+    {
+        findFiles(path + "/" + dir);
+    }
+}
+
+void MainWindow::enableButtons()
+{
+    bool enable = 0 != ui->files->count();
+    ui->accept->setEnabled(enable);
+    ui->reject->setEnabled(enable);
+    ui->edit->setEnabled(enable);
+}
+
+void MainWindow::on_files_currentItemChanged
+        (QListWidgetItem* current, QListWidgetItem* /*previous*/)
+{
+    if (!current)
+    {
+        ui->diff->clear();
+        return;
+    }
+    update_diff();
+}
+
+void MainWindow::update_diff()
+{
+    QString fold, fnew;
+    fold = fnew = ui->files->currentItem()->text();
+    fold.replace(QRegExp("\\.new$"), "");
+    QStringList difflines = diff(fold, fnew).split("\n");
+    difflines.replaceInStrings(QRegExp("(@@[^@]+@@)"),
+                   "<span style=\"color:blue;font-weight:bold;\">\\1</span>");
+    difflines.replaceInStrings(QRegExp("^((---|\\+\\+\\+)\\s.*)$"),
+                   "<span style=\"font-weight:bold;\">\\1</span>");
+    difflines.replaceInStrings(QRegExp("^(-.*)$"),
+                   "<span style=\"color:red;font-weight:bold;\">\\1</span>");
+    difflines.replaceInStrings(QRegExp("^(\\+.*)$"),
+                   "<span style=\"color:green;font-weight:bold;\">\\1</span>");
+
+    if (difflines.count() < 2)
+        on_reject_clicked();
+    else
+    {
+        ui->diff->setHtml("<pre>" + difflines.join("\n") + "</pre>");
+        enableButtons();
+    }
+}
+
+QString MainWindow::diff(QString fold, QString fnew)
+{
+    QProcess pipe;
+    QStringList args;
+    args << "-udb" << fold << fnew;
+    pipe.start("diff", args, QIODevice::ReadOnly);
+    pipe.waitForFinished();
+    QString res = QString::fromUtf8(
+            pipe.readAllStandardOutput().constData());
+    return res;
+}
+
+void MainWindow::on_accept_clicked()
+{
+    QString fold, fnew;
+    fold = fnew = ui->files->currentItem()->text();
+    fold.replace(QRegExp("\\.new$"), "");
+    if (QFile::remove(fold) && QFile::rename(fnew, fold))
+    {
+        ui->files->takeItem(
+                    ui->files->row(
+                        ui->files->currentItem()));
+    }
+    else
+    {
+        qWarning() << "Unable to move"
+                << fnew << "to" << fold;
+    }
+    enableButtons();
+}
+
+void MainWindow::on_reject_clicked()
+{
+    QString fnew;
+    fnew = ui->files->currentItem()->text();
+    if (QFile::remove(fnew))
+    {
+        ui->files->takeItem(ui->files->row(ui->files->currentItem()));
+    }
+    else
+    {
+        qWarning() << "Unable to delete" << fnew;
+    }
+    enableButtons();
+}
+
+void MainWindow::on_diff_selectionChanged()
+{
+    ui->apply->setEnabled(
+            ui->diff->textCursor().selectionStart() !=
+            ui->diff->textCursor().selectionEnd());
+}
+
+void MainWindow::on_edit_clicked()
+{
+    QString fold, fnew;
+    fold = fnew = ui->files->currentItem()->text();
+    fold.replace(QRegExp("\\.new$"), "");
+
+    QProcess editor;
+    QStringList args;
+    args << "-f";
+    args << fold;
+    editor.start("gvim", args);
+    editor.waitForFinished();
+    update_diff();
+}
+
+void MainWindow::on_apply_clicked()
+{
+    int start = ui->diff->textCursor().selectionStart();
+    int end   = ui->diff->textCursor().selectionEnd();
+
+    int first = ui->diff->document()->findBlock(start).firstLineNumber();
+    int last  = ui->diff->document()->findBlock(end).firstLineNumber();
+
+    if (last <= first)
+        last = first + 1;
+
+    QStringList lines = ui->diff->toPlainText().split("\n");
+
+    QStringList part_diff;
+    part_diff << lines[0] << lines[1];
+
+    // Looking for the begining
+    if (first < 2) first = 2;
+    else
+        while (lines[first].left(2) != "@@")
+            first--;
+
+    // Looking for the end
+    int nlines = lines.count();
+    while (last < nlines)
+    {
+        if (lines[last].left(2) == "@@")
+            break;
+        else last++;
+    }
+    part_diff << lines.mid(first, last-first) << "\n";
+    patch(part_diff.join("\n"));
+    update_diff();
+}
+
+void MainWindow::patch(QString diff)
+{
+    QProcess pipe;
+    QStringList args;
+    // args << "--dry-run"; // TODO: remove me
+    args << "-p0" << "-l";
+    pipe.start("patch", args);
+    pipe.waitForStarted();
+    pipe.write(diff.toUtf8());
+    pipe.closeWriteChannel();
+    pipe.waitForFinished();
+    qDebug() << pipe.readAllStandardOutput();
+}
+
+
+