1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@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 qt-info@nokia.com.
**
**************************************************************************/
#include "callgrindcostdelegate.h"
#include "callgrindcostview.h"
#include "callgrindhelper.h"
#include "callgrind/callgrindabstractmodel.h"
#include "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;
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)
{}
static int toNativeRole(CostDelegate::CostFormat format)
{
switch (format)
{
case CostDelegate::FormatAbsolute:
case CostDelegate::FormatRelative:
return Callgrind::RelativeTotalCostRole;
case CostDelegate::FormatRelativeToParent:
return 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();
}
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
{
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.
QLocale loc = opt.locale;
loc.setNumberOptions(0);
const QString text = d->displayText(index, loc);
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
|
