analyzer: merge valgrind based tool plugins

It is hard to imagine there is a real use case that someone wants one but
absolutely not the other.

Change-Id: I58bb57912f2edeacf2d5a24e3b2eb5a81262eabd
Reviewed-on: http://codereview.qt.nokia.com/66
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

src/plugins/valgrind/callgrindcostdelegate.cpp

@@ -0,0 +1,181 @@
+/**************************************************************************
+**
+** 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 "callgrindcostdelegate.h"
+
+#include "callgrindcostview.h"
+#include "callgrindhelper.h"
+
+#include <valgrind/callgrind/callgrindabstractmodel.h>
+#include <valgrind/callgrind/callgrindparsedata.h>
+
+#include <utils/qtcassert.h>
+
+#include <QtGui/QApplication>
+#include <QtGui/QPainter>
+
+using namespace Valgrind::Callgrind;
+
+namespace Valgrind {
+namespace Internal {
+
+class CostDelegate::Private
+{
+public:
+    Private();
+
+    QAbstractItemModel *m_model;
+    CostDelegate::CostFormat m_format;
+
+    static int toNativeRole(CostFormat format);
+    float relativeCost(const QModelIndex &index) const;
+    QString displayText(const QModelIndex &index, const QLocale &locale) const;
+};
+
+CostDelegate::Private::Private()
+    : m_model(0)
+    , m_format(CostDelegate::FormatAbsolute)
+{}
+
+int CostDelegate::Private::toNativeRole(CostDelegate::CostFormat format)
+{
+    switch (format)
+    {
+    case FormatAbsolute:
+    case FormatRelative:
+        return Valgrind::Callgrind::RelativeTotalCostRole;
+    case FormatRelativeToParent:
+        return Valgrind::Callgrind::RelativeParentCostRole;
+    default:
+        return -1;
+    }
+}
+
+float CostDelegate::Private::relativeCost(const QModelIndex &index) const
+{
+    bool ok = false;
+    float cost = index.data(toNativeRole(m_format)).toFloat(&ok);
+    QTC_ASSERT(ok, return 0);
+    return cost;
+}
+
+QString CostDelegate::Private::displayText(const QModelIndex &index, const QLocale &locale) const
+{
+    switch (m_format) {
+    case FormatAbsolute:
+        return locale.toString(index.data().toULongLong());
+    case FormatRelative:
+    case FormatRelativeToParent:
+        if (!m_model)
+            break;
+        float cost = relativeCost(index) * 100.0f;
+        return CallgrindHelper::toPercent(cost, locale);
+    }
+
+    return QString();
+}
+//END CostDelegate::Private
+
+//BEGIN CostDelegate
+CostDelegate::CostDelegate(QObject *parent)
+    : QStyledItemDelegate(parent)
+    , d(new Private)
+{
+
+}
+
+CostDelegate::~CostDelegate()
+{
+    delete d;
+}
+
+void CostDelegate::setModel(QAbstractItemModel *model)
+{
+    d->m_model = model;
+}
+
+void CostDelegate::setFormat(CostFormat format)
+{
+    d->m_format = format;
+}
+
+CostDelegate::CostFormat CostDelegate::format() const
+{
+    return d->m_format;
+}
+
+void CostDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
+                         const QModelIndex &index) const
+{
+    // init
+    QStyleOptionViewItemV4 opt(option);
+    initStyleOption(&opt, index);
+
+    QStyle *style = opt.widget ? opt.widget->style() : QApplication::style();
+
+    // draw controls, but no text
+    opt.text.clear();
+    style->drawControl(QStyle::CE_ItemViewItem, &opt, painter);
+
+    painter->save();
+
+    // draw bar
+    float ratio = qBound(0.0f, d->relativeCost(index), 1.0f);
+    QRect barRect = opt.rect;
+    barRect.setWidth(opt.rect.width() * ratio);
+    painter->setPen(Qt::NoPen);
+    painter->setBrush(CallgrindHelper::colorForCostRatio(ratio));
+    painter->drawRect(barRect);
+
+    // draw text
+    const QString text = d->displayText(index, opt.locale);
+    const QBrush &textBrush = (option.state & QStyle::State_Selected ? opt.palette.highlightedText() : opt.palette.text());
+    painter->setBrush(Qt::NoBrush);
+    painter->setPen(textBrush.color());
+    painter->drawText(opt.rect, Qt::AlignRight, text);
+
+    painter->restore();
+}
+
+QSize CostDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+    QStyleOptionViewItemV4 opt(option);
+    initStyleOption(&opt, index);
+
+    const QString text = d->displayText(index, opt.locale);
+    const QSize size = QSize(option.fontMetrics.width(text),
+                             option.fontMetrics.height());
+    return size;
+}
+
+} // namespace Internal
+} // namespace Valgrind