From e42ca194c53b8286447c7750feb8c7497c88e698 Mon Sep 17 00:00:00 2001
From: Erik Verbruggen <erik.verbruggen@nokia.com>
Date: Mon, 7 Jun 2010 13:06:21 +0200
Subject: Introduced token caching to prevent repetetive tokenizing.

Also removed TokenUnderCursor as it's functionality is in the token cache.

Reviewed-by: ckamm
---
 src/libs/cplusplus/TokenCache.h | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/libs/cplusplus/TokenCache.h

(limited to 'src/libs/cplusplus/TokenCache.h')

diff --git a/src/libs/cplusplus/TokenCache.h b/src/libs/cplusplus/TokenCache.h
new file mode 100644
index 0000000000..0e75e08d73
--- /dev/null
+++ b/src/libs/cplusplus/TokenCache.h
@@ -0,0 +1,39 @@
+#ifndef TOKENCACHE_H
+#define TOKENCACHE_H
+
+#include <CPlusPlusForwardDeclarations.h>
+#include <cplusplus/SimpleLexer.h>
+
+#include <QtCore/QHash>
+#include <QtCore/QList>
+
+#include <QtGui/QTextBlock>
+#include <QtGui/QTextCursor>
+#include <QtGui/QTextDocument>
+
+namespace CPlusPlus {
+
+class CPLUSPLUS_EXPORT TokenCache
+{
+public:
+    TokenCache();
+
+    void setDocument(QTextDocument *doc);
+
+    QList<CPlusPlus::SimpleToken> tokensForBlock(const QTextBlock &block) const;
+    CPlusPlus::SimpleToken tokenUnderCursor(const QTextCursor &cursor) const;
+
+    QString text(const QTextBlock &block, int tokenIndex) const;
+
+    static int previousBlockState(const QTextBlock &block);
+
+private:
+    QTextDocument *m_doc;
+
+    mutable int m_revision;
+    mutable QHash<int, QList<CPlusPlus::SimpleToken> > m_tokensByBlock;
+};
+
+} // namespace CPlusPlus
+
+#endif // TOKENCACHE_H
-- 
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