Snippets: Make it easier for plugins to add snippets groups

Groups are no longer enum values but identified from snippet providers.

src/plugins/texteditor/snippets/snippetcollector.cpp

@@ -0,0 +1,78 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 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://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "snippetcollector.h"
+#include "snippetsmanager.h"
+#include "snippetscollection.h"
+
+#include <texteditor/texteditorconstants.h>
+
+using namespace TextEditor;
+using namespace Internal;
+
+namespace {
+
+void appendSnippets(ICompletionCollector *collector,
+                    QList<CompletionItem> *completionItems,
+                    const QString &groupId,
+                    const QIcon &icon,
+                    int order)
+{
+    QSharedPointer<SnippetsCollection> collection =
+        SnippetsManager::instance()->snippetsCollection();
+    const int size = collection->totalActiveSnippets(groupId);
+    for (int i = 0; i < size; ++i) {
+        const Snippet &snippet = collection->snippet(i, groupId);
+        CompletionItem item(collector);
+        item.text = snippet.trigger() + QLatin1Char(' ') + snippet.complement();
+        item.data = snippet.content();
+        item.details = snippet.generateTip();
+        item.icon = icon;
+        item.order = order;
+        item.isSnippet = true;
+        completionItems->append(item);
+    }
+}
+
+} // anonymous
+
+SnippetCollector::SnippetCollector(const QString &groupId, const QIcon &icon, int order) :
+    m_groupId(groupId), m_icon(icon), m_order(order)
+{}
+
+SnippetCollector::~SnippetCollector()
+{}
+
+QList<CompletionItem> SnippetCollector::getSnippets(ICompletionCollector *collector) const
+{
+    QList<CompletionItem> completionItems;
+    appendSnippets(collector, &completionItems, m_groupId, m_icon, m_order);
+    appendSnippets(collector, &completionItems, Constants::TEXT_SNIPPET_GROUP_ID, m_icon, m_order);
+    return completionItems;
+}