Add a CVS plugin for use with UNIX cvs or Tortoise CVS.

src/plugins/cvs/cvseditor.cpp

@@ -0,0 +1,159 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+**
+**************************************************************************/
+
+#include "cvseditor.h"
+
+#include "annotationhighlighter.h"
+#include "cvsconstants.h"
+
+#include <utils/qtcassert.h>
+#include <vcsbase/diffhighlighter.h>
+
+#include <QtCore/QDebug>
+#include <QtGui/QTextCursor>
+
+namespace CVS {
+namespace Internal {
+
+// Match a CVS revision ("1.1.1.1")
+#define CVS_REVISION_PATTERN "[\\d\\.]+"
+#define CVS_REVISION_AT_START_PATTERN "^("CVS_REVISION_PATTERN") "
+
+CVSEditor::CVSEditor(const VCSBase::VCSBaseEditorParameters *type,
+                                   QWidget *parent) :
+    VCSBase::VCSBaseEditor(type, parent),
+    m_revisionPattern(QLatin1String(CVS_REVISION_AT_START_PATTERN".*$"))
+{
+    QTC_ASSERT(m_revisionPattern.isValid(), return);
+}
+
+QSet<QString> CVSEditor::annotationChanges() const
+{
+    QSet<QString> changes;
+    const QString txt = toPlainText();
+    if (txt.isEmpty())
+        return changes;
+    // Hunt for first change number in annotation: "1.1 (author)"
+    QRegExp r(QLatin1String(CVS_REVISION_AT_START_PATTERN));
+    QTC_ASSERT(r.isValid(), return changes);
+    if (r.indexIn(txt) != -1) {
+        changes.insert(r.cap(1));
+        r.setPattern(QLatin1String("\n("CVS_REVISION_PATTERN") "));
+        QTC_ASSERT(r.isValid(), return changes);
+        int pos = 0;
+        while ((pos = r.indexIn(txt, pos)) != -1) {
+            pos += r.matchedLength();
+            changes.insert(r.cap(1));
+        }
+    }
+    if (CVS::Constants::debug)
+        qDebug() << "CVSEditor::annotationChanges() returns #" << changes.size();
+    return changes;
+}
+
+QString CVSEditor::changeUnderCursor(const QTextCursor &c) const
+{
+
+    // Check for a revision number at the beginning of the line.
+    // Note that "cursor.select(QTextCursor::WordUnderCursor)" will
+    // only select the part up until the dot.
+    // Check if we are at the beginning of a line within a reasonable offset.
+    const QTextBlock block = c.block();
+    if (c.atBlockStart() || (c.position() - block.position() < 3)) {
+        const QString line = block.text();
+        if (m_revisionPattern.exactMatch(line))
+            return m_revisionPattern.cap(1);
+    }
+    return QString();
+}
+
+/* \code
+cvs diff -d -u -r1.1 -r1.2:
+--- mainwindow.cpp<\t>13 Jul 2009 13:50:15 -0000 <\t>1.1
++++ mainwindow.cpp<\t>14 Jul 2009 07:09:24 -0000<\t>1.2
+@@ -6,6 +6,5 @@
+\endcode
+*/
+
+VCSBase::DiffHighlighter *CVSEditor::createDiffHighlighter() const
+{
+    const QRegExp filePattern(QLatin1String("^[-+][-+][-+] .*1\\.[\\d\\.]+$"));
+    QTC_ASSERT(filePattern.isValid(), /**/);
+    return new VCSBase::DiffHighlighter(filePattern);
+}
+
+VCSBase::BaseAnnotationHighlighter *CVSEditor::createAnnotationHighlighter(const QSet<QString> &changes) const
+{
+    return new CVSAnnotationHighlighter(changes);
+}
+
+QString CVSEditor::fileNameFromDiffSpecification(const QTextBlock &inBlock) const
+{
+    // "+++ mainwindow.cpp<\t>13 Jul 2009 13:50:15 -0000      1.1"
+    // Go back chunks
+    const QString diffIndicator = QLatin1String("+++ ");
+    for (QTextBlock  block = inBlock; block.isValid() ; block = block.previous()) {
+        QString diffFileName = block.text();
+        if (diffFileName.startsWith(diffIndicator)) {
+            diffFileName.remove(0, diffIndicator.size());
+            const int tabIndex = diffFileName.indexOf(QLatin1Char('\t'));
+            if (tabIndex != -1)
+                diffFileName.truncate(tabIndex);
+            // Add base dir
+            if (!m_diffBaseDir.isEmpty()) {
+                diffFileName.insert(0, QLatin1Char('/'));
+                diffFileName.insert(0, m_diffBaseDir);
+            }
+
+            if (CVS::Constants::debug)
+                qDebug() << "fileNameFromDiffSpecification" << m_diffBaseDir << diffFileName;
+            return diffFileName;
+        }
+    }
+    return QString();
+}
+
+QString CVSEditor::diffBaseDir() const
+{
+    return m_diffBaseDir;
+}
+
+void CVSEditor::setDiffBaseDir(const QString &d)
+{
+    m_diffBaseDir = d;
+}
+
+void CVSEditor::setDiffBaseDir(Core::IEditor *editor, const QString &db)
+{
+    if (CVSEditor *cvsEditor = qobject_cast<CVSEditor*>(editor->widget()))
+        cvsEditor->setDiffBaseDir(db);
+}
+
+}
+}