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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qpicture.h>
#include <qpainter.h>
#include <qimage.h>
#include <qdesktopwidget.h>
#include <qapplication.h>
//TESTED_CLASS=
//TESTED_FILES=
class tst_QPicture : public QObject
{
Q_OBJECT
public:
tst_QPicture();
private slots:
void getSetCheck();
void devType();
void paintingActive();
void boundingRect();
void operator_lt_lt();
void save_restore();
};
// Testing get/set functions
void tst_QPicture::getSetCheck()
{
QPictureIO obj1;
// const QPicture & QPictureIO::picture()
// void QPictureIO::setPicture(const QPicture &)
// const char * QPictureIO::format()
// void QPictureIO::setFormat(const char *)
char *var2 = "PNG";
obj1.setFormat(var2);
QCOMPARE(var2, obj1.format());
obj1.setFormat((char *)0);
// The format is stored internally in a QString, so return is always a valid char *
QVERIFY(QString(obj1.format()).isEmpty());
// const char * QPictureIO::parameters()
// void QPictureIO::setParameters(const char *)
char *var3 = "Bogus data";
obj1.setParameters(var3);
QCOMPARE(var3, obj1.parameters());
obj1.setParameters((char *)0);
// The format is stored internally in a QString, so return is always a valid char *
QVERIFY(QString(obj1.parameters()).isEmpty());
}
tst_QPicture::tst_QPicture()
{
}
void tst_QPicture::devType()
{
QPicture p;
QCOMPARE( p.devType(), (int)QInternal::Picture );
}
void tst_QPicture::paintingActive()
{
// actually implemented in QPainter but QPicture is a good
// example of an external paint device
QPicture p;
QVERIFY( !p.paintingActive() );
QPainter pt( &p );
QVERIFY( p.paintingActive() );
pt.end();
QVERIFY( !p.paintingActive() );
}
void tst_QPicture::boundingRect()
{
QPicture p1;
// default value
QVERIFY( !p1.boundingRect().isValid() );
QRect r1( 20, 30, 5, 15 );
p1.setBoundingRect( r1 );
QCOMPARE( p1.boundingRect(), r1 );
p1.setBoundingRect(QRect());
QPainter pt( &p1 );
pt.drawLine( 10, 20, 110, 80 );
pt.end();
// assignment and copy constructor
QRect r2( 10, 20, 100, 60 );
QCOMPARE( p1.boundingRect(), r2 );
QPicture p2( p1 );
QCOMPARE( p1.boundingRect(), r2 );
QPicture p3;
p3 = p1;
QCOMPARE( p1.boundingRect(), r2 );
{
QPicture p4;
QPainter p(&p4);
p.drawLine(0, 0, 5, 0);
p.drawLine(0, 0, 0, 5);
p.end();
QRect r3(0, 0, 5, 5);
QCOMPARE(p4.boundingRect(), r3);
}
}
// operator<< and operator>>
void tst_QPicture::operator_lt_lt()
{
// streaming of null pictures
{
QPicture pic1, pic2;
QByteArray ba( 100, 0 );
QDataStream str1( &ba, QIODevice::WriteOnly );
str1 << pic1;
QDataStream str2( &ba, QIODevice::ReadOnly );
str2 >> pic2;
QVERIFY( pic2.isNull() );
}
// picture with a simple line, checking bitwise equality
{
QPicture pic1, pic2;
QPainter p( &pic1 );
p.drawLine( 10, 20, 30, 40 );
p.end();
QByteArray ba( 10 * pic1.size(), 0 );
QDataStream str1( &ba, QIODevice::WriteOnly );
str1 << pic1;
QDataStream str2( &ba, QIODevice::ReadOnly );
str2 >> pic2;
QCOMPARE( pic1.size(), pic2.size() );
QVERIFY( memcmp( pic1.data(), pic2.data(), pic1.size() ) == 0 );
}
}
static QPointF scalePoint(const QPointF &point, QPaintDevice *sourceDevice, QPaintDevice *destDevice)
{
return QPointF(point.x() * qreal(destDevice->logicalDpiX()) / qreal(sourceDevice->logicalDpiX()),
point.y() * qreal(destDevice->logicalDpiY()) / qreal(sourceDevice->logicalDpiY()));
}
static QRectF scaleRect(const QRectF &rect, QPaintDevice *sourceDevice, QPaintDevice *destDevice)
{
return QRectF(rect.left() * qreal(destDevice->logicalDpiX()) / qreal(sourceDevice->logicalDpiX()),
rect.top() * qreal(destDevice->logicalDpiY()) / qreal(sourceDevice->logicalDpiY()),
rect.width() * qreal(destDevice->logicalDpiX()) / qreal(sourceDevice->logicalDpiX()),
rect.height() * qreal(destDevice->logicalDpiY()) / qreal(sourceDevice->logicalDpiY()));
}
static void paintStuff(QPainter *p)
{
QPaintDevice *screenDevice = QApplication::desktop();
p->drawRect(scaleRect(QRectF(100, 100, 100, 100), screenDevice, p->device()));
p->save();
p->translate(scalePoint(QPointF(10, 10), screenDevice, p->device()));
p->restore();
p->drawRect(scaleRect(QRectF(100, 100, 100, 100), screenDevice, p->device()));
}
/* See task: 41469
Problem is that the state is not properly restored if the basestate of
the painter is different when the picture data was created compared to
the base state of the painter when it is played back.
*/
void tst_QPicture::save_restore()
{
QPicture pic;
QPainter p;
p.begin(&pic);
paintStuff(&p);
p.end();
QPixmap pix1(300, 300);
pix1.fill(Qt::white);
p.begin(&pix1);
p.drawPicture(50, 50, pic);
p.end();
QPixmap pix2(300, 300);
pix2.fill(Qt::white);
p.begin(&pix2);
p.translate(50, 50);
paintStuff(&p);
p.end();
QVERIFY( pix1.toImage() == pix2.toImage() );
}
QTEST_MAIN(tst_QPicture)
#include "tst_qpicture.moc"
|
