Added PythonEditor plugin

Contains lexical highlighter, indenter and file wizard.
Icon loaded from theme, if possible.
Class wizard will be added later since it needs to extend libUtils.

Change-Id: If723867c01e9be83371424e406d116805c88c2b0
Reviewed-by: hjk <hjk121@nokiamail.com>

1 files changed, 286 insertions, 0 deletions

diff --git a/src/plugins/pythoneditor/pythoneditorplugin.cpp b/src/plugins/pythoneditor/pythoneditorplugin.cpp
new file mode 100644
index 0000000000..893fac076d
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+++ b/src/plugins/pythoneditor/pythoneditorplugin.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "pythoneditorplugin.h"
+#include "pythoneditorconstants.h"
+#include "wizard/pythonfilewizard.h"
+#include "pythoneditorwidget.h"
+#include "pythoneditorfactory.h"
+
+#include <coreplugin/icore.h>
+#include <coreplugin/coreconstants.h>
+#include <coreplugin/mimedatabase.h>
+#include <coreplugin/fileiconprovider.h>
+#include <coreplugin/id.h>
+#include <coreplugin/editormanager/editormanager.h>
+#include <extensionsystem/pluginmanager.h>
+#include <texteditor/texteditorconstants.h>
+#include <texteditor/texteditorsettings.h>
+
+#include <QtPlugin>
+#include <QCoreApplication>
+
+using namespace PythonEditor::Constants;
+
+/*******************************************************************************
+ * List of Python keywords (includes "print" that isn't keyword in python 3
+ ******************************************************************************/
+static const char *const LIST_OF_PYTHON_KEYWORDS[] = {
+    "and",
+    "as",
+    "assert",
+    "break",
+    "class",
+    "continue",
+    "def",
+    "del",
+    "elif",
+    "else",
+    "except",
+    "exec",
+    "finally",
+    "for",
+    "from",
+    "global",
+    "if",
+    "import",
+    "in",
+    "is",
+    "lambda",
+    "not",
+    "or",
+    "pass",
+    "print",
+    "raise",
+    "return",
+    "try",
+    "while",
+    "with",
+    "yield"
+};
+
+/*******************************************************************************
+ * List of Python magic methods and attributes
+ ******************************************************************************/
+static const char *const LIST_OF_PYTHON_MAGICS[] = {
+    // ctor & dtor
+    "__init__",
+    "__del__",
+    // string conversion functions
+    "__str__",
+    "__repr__",
+    "__unicode__",
+    // attribute access functions
+    "__setattr__",
+    "__getattr__",
+    "__delattr__",
+    // binary operators
+    "__add__",
+    "__sub__",
+    "__mul__",
+    "__truediv__",
+    "__floordiv__",
+    "__mod__",
+    "__pow__",
+    "__and__",
+    "__or__",
+    "__xor__",
+    "__eq__",
+    "__ne__",
+    "__gt__",
+    "__lt__",
+    "__ge__",
+    "__le__",
+    "__lshift__",
+    "__rshift__",
+    "__contains__",
+    // unary operators
+    "__pos__",
+    "__neg__",
+    "__inv__",
+    "__abs__",
+    "__len__",
+    // item operators like []
+    "__getitem__",
+    "__setitem__",
+    "__delitem__",
+    "__getslice__",
+    "__setslice__",
+    "__delslice__",
+    // other functions
+    "__cmp__",
+    "__hash__",
+    "__nonzero__",
+    "__call__",
+    "__iter__",
+    "__reversed__",
+    "__divmod__",
+    "__int__",
+    "__long__",
+    "__float__",
+    "__complex__",
+    "__hex__",
+    "__oct__",
+    "__index__",
+    "__copy__",
+    "__deepcopy__",
+    "__sizeof__",
+    "__trunc__",
+    "__format__",
+    // magic attributes
+    "__name__",
+    "__module__",
+    "__dict__",
+    "__bases__",
+    "__doc__"
+};
+
+/*******************************************************************************
+ * List of python built-in functions and objects
+ ******************************************************************************/
+static const char *const LIST_OF_PYTHON_BUILTINS[] = {
+    "range",
+    "xrange",
+    "int",
+    "float",
+    "long",
+    "hex",
+    "oct"
+    "chr",
+    "ord",
+    "len",
+    "abs",
+    "None",
+    "True",
+    "False"
+};
+
+namespace PythonEditor {
+
+PythonEditorPlugin *PythonEditorPlugin::m_instance = 0;
+
+/// Copies identifiers from array to QSet
+static void copyIdentifiers(const char * const words[], size_t bytesCount, QSet<QString> &result)
+{
+    const size_t count = bytesCount / sizeof(const char * const);
+    for (size_t i = 0; i < count; ++i)
+        result.insert(QLatin1String(words[i]));
+}
+
+PythonEditorPlugin::PythonEditorPlugin()
+    : m_factory(0)
+    , m_actionHandler(0)
+{
+    m_instance = this;
+    copyIdentifiers(LIST_OF_PYTHON_KEYWORDS, sizeof(LIST_OF_PYTHON_KEYWORDS), m_keywords);
+    copyIdentifiers(LIST_OF_PYTHON_MAGICS, sizeof(LIST_OF_PYTHON_MAGICS), m_magics);
+    copyIdentifiers(LIST_OF_PYTHON_BUILTINS, sizeof(LIST_OF_PYTHON_BUILTINS), m_builtins);
+}
+
+PythonEditorPlugin::~PythonEditorPlugin()
+{
+    removeObject(m_factory);
+    m_instance = 0;
+}
+
+bool PythonEditorPlugin::initialize(
+        const QStringList &arguments, QString *errorMessage)
+{
+    Q_UNUSED(arguments)
+
+    Core::ICore *pCore = Core::ICore::instance();
+
+    if (! pCore->mimeDatabase()->addMimeTypes(
+            QLatin1String(RC_PY_MIME_XML),
+            errorMessage))
+    {
+        return false;
+    }
+
+    m_factory = new EditorFactory(this);
+    addObject(m_factory);
+
+    ////////////////////////////////////////////////////////////////////////////
+    // Initialize editor actions handler
+    ////////////////////////////////////////////////////////////////////////////
+    m_actionHandler.reset(new TextEditor::TextEditorActionHandler(
+                              C_PYTHONEDITOR_ID,
+                              TextEditor::TextEditorActionHandler::Format
+                              | TextEditor::TextEditorActionHandler::UnCommentSelection
+                              | TextEditor::TextEditorActionHandler::UnCollapseAll));
+    m_actionHandler->initializeActions();
+
+    ////////////////////////////////////////////////////////////////////////////
+    // Add MIME overlay icons (these icons displayed at Project dock panel)
+    ////////////////////////////////////////////////////////////////////////////
+    const QIcon icon = QIcon::fromTheme(QLatin1String(C_PY_MIME_ICON));
+    if (!icon.isNull()) {
+        Core::FileIconProvider *iconProv = Core::FileIconProvider::instance();
+        Core::MimeDatabase *mimeDB = Core::ICore::instance()->mimeDatabase();
+        iconProv->registerIconOverlayForMimeType(
+                    icon, mimeDB->findByType(QLatin1String(C_PY_MIMETYPE)));
+    }
+
+    ////////////////////////////////////////////////////////////////////////////
+    // Add Python files and classes creation dialogs
+    ////////////////////////////////////////////////////////////////////////////
+    addAutoReleasedObject(new FileWizard(Core::ICore::instance()));
+
+    return true;
+}
+
+void PythonEditorPlugin::extensionsInitialized()
+{
+}
+
+void PythonEditorPlugin::initializeEditor(EditorWidget *widget)
+{
+    instance()->m_actionHandler->setupActions(widget);
+    TextEditor::TextEditorSettings::instance()->initializeEditor(widget);
+}
+
+QSet<QString> PythonEditorPlugin::keywords()
+{
+    return instance()->m_keywords;
+}
+
+QSet<QString> PythonEditorPlugin::magics()
+{
+    return instance()->m_magics;
+}
+
+QSet<QString> PythonEditorPlugin::builtins()
+{
+    return instance()->m_builtins;
+}
+
+} // namespace PythonEditor
+
+Q_EXPORT_PLUGIN(PythonEditor::PythonEditorPlugin)
+