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
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "screenshotcropper.h"
#include <coreplugin/icore.h>
#include <QXmlStreamReader>
#include <QXmlStreamWriter>
#include <QDebug>
#include <QFile>
#include <QFileInfo>
namespace QtSupport {
namespace Internal {
class AreasOfInterest {
public:
AreasOfInterest();
QMap<QString, QRect> areas;
};
AreasOfInterest::AreasOfInterest()
{
#ifdef QT_CREATOR
areas = ScreenshotCropper::loadAreasOfInterest(Core::ICore::resourcePath() + QLatin1String("/welcomescreen/images_areaofinterest.xml"));
#endif // QT_CREATOR
}
Q_GLOBAL_STATIC(AreasOfInterest, welcomeScreenAreas)
static inline QString fileNameForPath(const QString &path)
{
return QFileInfo(path).fileName();
}
static QRect cropRectForAreaOfInterest(const QSize &imageSize, const QSize &cropSize, const QRect &areaOfInterest)
{
QRect result;
const qreal cropSizeToAreaSizeFactor = qMin(cropSize.width() / qreal(areaOfInterest.width()),
cropSize.height() / qreal(areaOfInterest.height()));
if (cropSizeToAreaSizeFactor >= 1) {
const QPoint areaOfInterestCenter = areaOfInterest.center();
const int cropX = qBound(0,
areaOfInterestCenter.x() - cropSize.width() / 2,
imageSize.width() - cropSize.width());
const int cropY = qBound(0,
areaOfInterestCenter.y() - cropSize.height() / 2,
imageSize.height() - cropSize.height());
const int cropWidth = qMin(imageSize.width(), cropSize.width());
const int cropHeight = qMin(imageSize.height(), cropSize.height());
result = QRect(cropX, cropY, cropWidth, cropHeight);
} else {
QSize resultSize = cropSize.expandedTo(areaOfInterest.size());
result = QRect(QPoint(), resultSize);
}
return result;
}
QImage ScreenshotCropper::croppedImage(const QImage &sourceImage, const QString &filePath, const QSize &cropSize)
{
const QRect areaOfInterest = welcomeScreenAreas()->areas.value(fileNameForPath(filePath));
if (areaOfInterest.isValid()) {
const QRect cropRect = cropRectForAreaOfInterest(sourceImage.size(), cropSize, areaOfInterest);
const QSize cropRectSize = cropRect.size();
const QImage result = sourceImage.copy(cropRect);
if (cropRectSize.width() > cropSize.width() || cropRectSize.height() > cropSize.height())
return result.scaled(cropSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
else
return result;
}
return sourceImage.scaled(cropSize, Qt::KeepAspectRatio);
}
static int areaAttribute(const QXmlStreamAttributes &attributes, const QString &name)
{
bool ok;
const int result = attributes.value(name).toString().toInt(&ok);
if (!ok)
qWarning() << Q_FUNC_INFO << "Could not parse" << name << "for" << attributes.value(QLatin1String("image")).toString();
return result;
}
static const QString xmlTagAreas = QLatin1String("areas");
static const QString xmlTagArea = QLatin1String("area");
static const QString xmlAttributeImage = QLatin1String("image");
static const QString xmlAttributeX = QLatin1String("x");
static const QString xmlAttributeY = QLatin1String("y");
static const QString xmlAttributeWidth = QLatin1String("width");
static const QString xmlAttributeHeight = QLatin1String("height");
QMap<QString, QRect> ScreenshotCropper::loadAreasOfInterest(const QString &areasXmlFile)
{
QMap<QString, QRect> areasOfInterest;
QFile xmlFile(areasXmlFile);
if (!xmlFile.open(QIODevice::ReadOnly)) {
qWarning() << Q_FUNC_INFO << "Could not open file" << areasXmlFile;
return areasOfInterest;
}
QXmlStreamReader reader(&xmlFile);
while (!reader.atEnd()) {
switch (reader.readNext()) {
case QXmlStreamReader::StartElement:
if (reader.name() == xmlTagArea) {
const QXmlStreamAttributes attributes = reader.attributes();
const QString imageName = attributes.value(xmlAttributeImage).toString();
if (imageName.isEmpty())
qWarning() << Q_FUNC_INFO << "Could not parse name";
const QRect area(areaAttribute(attributes, xmlAttributeX), areaAttribute(attributes, xmlAttributeY),
areaAttribute(attributes, xmlAttributeWidth), areaAttribute(attributes, xmlAttributeHeight));
areasOfInterest.insert(imageName, area);
}
break;
default: // nothing
break;
}
}
return areasOfInterest;
}
bool ScreenshotCropper::saveAreasOfInterest(const QString &areasXmlFile, QMap<QString, QRect> &areas)
{
QFile file(areasXmlFile);
if (!file.open(QIODevice::WriteOnly))
return false;
QXmlStreamWriter writer(&file);
writer.setAutoFormatting(true);
writer.writeStartDocument();
writer.writeStartElement(xmlTagAreas);
QMapIterator<QString, QRect> i(areas);
while (i.hasNext()) {
i.next();
writer.writeStartElement(xmlTagArea);
writer.writeAttribute(xmlAttributeImage, i.key());
writer.writeAttribute(xmlAttributeX, QString::number(i.value().x()));
writer.writeAttribute(xmlAttributeY, QString::number(i.value().y()));
writer.writeAttribute(xmlAttributeWidth, QString::number(i.value().width()));
writer.writeAttribute(xmlAttributeHeight, QString::number(i.value().height()));
writer.writeEndElement(); // xmlTagArea
}
writer.writeEndElement(); // xmlTagAreas
writer.writeEndDocument();
return true;
}
} // namespace Internal
} // namespace QtSupport
|
