Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731

1 files changed, 259 insertions, 0 deletions

diff --git a/src/sql/drivers/cache/qsqlcachedresult.cpp b/src/sql/drivers/cache/qsqlcachedresult.cpp
new file mode 100644
index 000000000..5e46b9b49
--- /dev/null
+++ b/src/sql/drivers/cache/qsqlcachedresult.cpp
@@ -0,0 +1,259 @@
+/****************************************************************************
+**
+** Implementation of cached TQt SQL result classes
+**
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the sql module of the TQt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing retquirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
+** included in the packaging of this file.  Licensees holding valid TQt
+** Commercial licenses may use this file in accordance with the TQt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#include "qsqlcachedresult.h"
+#include <qdatetime.h>
+
+#ifndef QT_NO_SQL
+static const uint initial_cache_size = 128;
+
+class TQtSqlCachedResultPrivate
+{
+public:
+    TQtSqlCachedResultPrivate();
+    bool seek(int i);
+    void init(int count, bool fo);
+    void cleanup();
+    TQtSqlCachedResult::RowCache* next();
+    void revertLast();
+
+    TQtSqlCachedResult::RowsetCache *cache;
+    TQtSqlCachedResult::RowCache *current;
+    int rowCacheEnd;
+    int colCount;
+    bool forwardOnly;
+};
+
+TQtSqlCachedResultPrivate::TQtSqlCachedResultPrivate():
+    cache(0), current(0), rowCacheEnd(0), colCount(0), forwardOnly(FALSE)
+{
+}
+
+void TQtSqlCachedResultPrivate::cleanup()
+{
+    if (cache) {
+	for (int i = 0; i < rowCacheEnd; ++i)
+	    delete (*cache)[i];
+	delete cache;
+	cache = 0;
+    }
+    if (forwardOnly)
+	delete current;
+    current = 0;
+    forwardOnly = FALSE;
+    colCount = 0;
+    rowCacheEnd = 0;
+}
+
+void TQtSqlCachedResultPrivate::init(int count, bool fo)
+{
+    cleanup();
+    forwardOnly = fo;
+    colCount = count;
+    if (fo)
+	current = new TQtSqlCachedResult::RowCache(count);
+    else
+	cache = new TQtSqlCachedResult::RowsetCache(initial_cache_size);
+}
+
+TQtSqlCachedResult::RowCache *TQtSqlCachedResultPrivate::next()
+{
+    if (forwardOnly)
+	return current;
+
+    Q_ASSERT(cache);
+    current = new TQtSqlCachedResult::RowCache(colCount);
+    if (rowCacheEnd == (int)cache->size())
+	cache->resize(cache->size() * 2);
+    cache->insert(rowCacheEnd++, current);
+    return current;
+}
+
+bool TQtSqlCachedResultPrivate::seek(int i)
+{
+    if (forwardOnly || i < 0)
+	return FALSE;
+    if (i >= rowCacheEnd)
+	return FALSE;
+    current = (*cache)[i];
+    return TRUE;
+}
+
+void TQtSqlCachedResultPrivate::revertLast()
+{
+    if (forwardOnly)
+	return;
+    --rowCacheEnd;
+    delete current;
+    current = 0;
+}
+
+//////////////
+
+TQtSqlCachedResult::TQtSqlCachedResult(const TQSqlDriver * db ): TQSqlResult ( db )
+{
+    d = new TQtSqlCachedResultPrivate();
+}
+
+TQtSqlCachedResult::~TQtSqlCachedResult()
+{
+    delete d;
+}
+
+void TQtSqlCachedResult::init(int colCount)
+{
+    d->init(colCount, isForwardOnly());
+}
+
+bool TQtSqlCachedResult::fetch(int i)
+{
+    if ((!isActive()) || (i < 0))
+	return FALSE;
+    if (at() == i)
+	return TRUE;
+    if (d->forwardOnly) {
+	// speed hack - do not copy values if not needed
+	if (at() > i || at() == TQSql::AfterLast)
+	    return FALSE;
+	while(at() < i - 1) {
+	    if (!gotoNext(0))
+		return FALSE;
+	    setAt(at() + 1);
+	}
+	if (!gotoNext(d->current))
+	    return FALSE;
+	setAt(at() + 1);
+	return TRUE;
+    }
+    if (d->seek(i)) {
+	setAt(i);
+	return TRUE;
+    }
+    setAt(d->rowCacheEnd - 1);
+    while (at() < i) {
+	if (!cacheNext())
+	    return FALSE;
+    }
+    return TRUE;
+}
+
+bool TQtSqlCachedResult::fetchNext()
+{
+    if (d->seek(at() + 1)) {
+	setAt(at() + 1);
+	return TRUE;
+    }
+    return cacheNext();
+}
+
+bool TQtSqlCachedResult::fetchPrev()
+{
+    return fetch(at() - 1);
+}
+
+bool TQtSqlCachedResult::fetchFirst()
+{
+    if (d->forwardOnly && at() != TQSql::BeforeFirst) {
+	return FALSE;
+    }
+    if (d->seek(0)) {
+	setAt(0);
+	return TRUE;
+    }
+    return cacheNext();
+}
+
+bool TQtSqlCachedResult::fetchLast()
+{
+    if (at() == TQSql::AfterLast) {
+	if (d->forwardOnly)
+	    return FALSE;
+	else
+	    return fetch(d->rowCacheEnd - 1);
+    }
+
+    int i = at();
+    while (fetchNext())
+	i++; /* brute force */
+    if (d->forwardOnly && at() == TQSql::AfterLast) {
+	setAt(i);
+	return TRUE;
+    } else {
+	return fetch(d->rowCacheEnd - 1);
+    }
+}
+
+TQVariant TQtSqlCachedResult::data(int i)
+{
+    if (!d->current || i >= (int)d->current->size() || i < 0)
+	return TQVariant();
+
+    return (*d->current)[i];
+}
+
+bool TQtSqlCachedResult::isNull(int i)
+{
+    if (!d->current || i >= (int)d->current->size() || i < 0)
+	return TRUE;
+
+    return (*d->current)[i].isNull();
+}
+
+void TQtSqlCachedResult::cleanup()
+{
+    setAt(TQSql::BeforeFirst);
+    setActive(FALSE);
+    d->cleanup();
+}
+
+bool TQtSqlCachedResult::cacheNext()
+{
+    if (!gotoNext(d->next())) {
+	d->revertLast();
+	return FALSE;
+    }
+    setAt(at() + 1);
+    return TRUE;
+}
+
+int TQtSqlCachedResult::colCount() const
+{
+    return d->colCount;
+}
+#endif // QT_NO_SQL