New code assist API

This is a re-work of our completion engine. Primary goals are:

- Allow the computation to run in a separate thread so the GUI is not locked.
- Support a model-based approach. QStrings are still needed (filtering, etc), but
internal structures are free to use more efficient representations.
- Unifiy all kinds of *assist* into a more reusable and extensible framework.
- Remove unnecessary dependencies on the text editor so we have more generic
and easily "plugable" components (still things to be resolved).

1 files changed, 81 insertions, 0 deletions

diff --git a/src/plugins/texteditor/snippets/snippetassistcollector.cpp b/src/plugins/texteditor/snippets/snippetassistcollector.cpp
new file mode 100644
index 0000000000..b6a27e69ab
--- /dev/null
+++ b/src/plugins/texteditor/snippets/snippetassistcollector.cpp
@@ -0,0 +1,81 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (info@qt.nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at info@qt.nokia.com.
+**
+**************************************************************************/
+
+#include "snippetassistcollector.h"
+#include "snippetscollection.h"
+
+#include <texteditor/texteditorconstants.h>
+#include <texteditor/codeassist/basicproposalitem.h>
+
+using namespace TextEditor;
+using namespace Internal;
+
+namespace {
+
+void appendSnippets(QList<BasicProposalItem *> *items,
+                    const QString &groupId,
+                    const QIcon &icon,
+                    int order)
+{
+    SnippetsCollection *collection = SnippetsCollection::instance();
+    const int size = collection->totalActiveSnippets(groupId);
+    for (int i = 0; i < size; ++i) {
+        const Snippet &snippet = collection->snippet(i, groupId);
+        BasicProposalItem *item = new BasicProposalItem;
+        item->setText(snippet.trigger() + QLatin1Char(' ') + snippet.complement());
+        item->setData(snippet.content());
+        item->setDetail(snippet.generateTip());
+        item->setIcon(icon);
+        item->setOrder(order);
+        items->append(item);
+    }
+}
+
+} // anonymous
+
+
+SnippetAssistCollector::SnippetAssistCollector(const QString &groupId, const QIcon &icon, int order)
+    : m_groupId(groupId)
+    , m_icon(icon)
+    , m_order(order)
+{}
+
+SnippetAssistCollector::~SnippetAssistCollector()
+{}
+
+QList<BasicProposalItem *> SnippetAssistCollector::collect() const
+{
+    QList<BasicProposalItem *> snippets;
+    appendSnippets(&snippets, m_groupId, m_icon, m_order);
+    appendSnippets(&snippets, Constants::TEXT_SNIPPET_GROUP_ID, m_icon, m_order);
+    return snippets;
+}