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39 
40 #ifndef QABSTRACTITEMMODELTESTER_H
41 #define QABSTRACTITEMMODELTESTER_H
42 
43 #include <QtCore/QObject>
44 #include <QtTest/qttestglobal.h>
45 #include <QtCore/QAbstractItemModel>
46 #include <QtCore/QVariant>
47 
48 #ifdef QT_GUI_LIB
49 #include <QtGui/QFont>
50 #include <QtGui/QColor>
51 #include <QtGui/QBrush>
52 #include <QtGui/QPixmap>
53 #include <QtGui/QImage>
54 #include <QtGui/QIcon>
55 #endif
56 
57 QT_REQUIRE_CONFIG(itemmodeltester);
58 
59 QT_BEGIN_NAMESPACE
60 
61 class QAbstractItemModel;
62 class QAbstractItemModelTester;
63 class QAbstractItemModelTesterPrivate;
64 
65 namespace QTestPrivate {
66 inline bool testDataGuiRoles(QAbstractItemModelTester *tester);
67 }
68 
69 class Q_TESTLIB_EXPORT QAbstractItemModelTester : public QObject
70 {
71     Q_OBJECT
72     Q_DECLARE_PRIVATE(QAbstractItemModelTester)
73 
74 public:
75     enum class FailureReportingMode {
76         QtTest,
77         Warning,
78         Fatal
79     };
80 
81     QAbstractItemModelTester(QAbstractItemModel *model, QObject *parent = nullptr);
82     QAbstractItemModelTester(QAbstractItemModel *model, FailureReportingMode mode, QObject *parent = nullptr);
83 
84     QAbstractItemModel *model() const;
85     FailureReportingMode failureReportingMode() const;
86 
87 private:
88     friend inline bool QTestPrivate::testDataGuiRoles(QAbstractItemModelTester *tester);
89     bool verify(bool statement, const char *statementStr, const char *description, const char *file, int line);
90 };
91 
92 namespace QTestPrivate {
testDataGuiRoles(QAbstractItemModelTester * tester)93 inline bool testDataGuiRoles(QAbstractItemModelTester *tester)
94 {
95 #ifdef QT_GUI_LIB
96 
97 #define MODELTESTER_VERIFY(statement) \
98 do { \
99     if (!tester->verify(static_cast<bool>(statement), #statement, "", __FILE__, __LINE__)) \
100         return false; \
101 } while (false)
102 
103     const auto model = tester->model();
104     Q_ASSERT(model);
105 
106     if (!model->hasChildren())
107         return true;
108 
109     QVariant variant;
110 
111     variant = model->data(model->index(0, 0), Qt::DecorationRole);
112     if (variant.isValid()) {
113         MODELTESTER_VERIFY(variant.canConvert<QPixmap>()
114                            || variant.canConvert<QImage>()
115                            || variant.canConvert<QIcon>()
116                            || variant.canConvert<QColor>()
117                            || variant.canConvert<QBrush>());
118     }
119 
120     // General Purpose roles that should return a QFont
121     variant = model->data(model->index(0, 0), Qt::FontRole);
122     if (variant.isValid())
123         MODELTESTER_VERIFY(variant.canConvert<QFont>());
124 
125     // General Purpose roles that should return a QColor or a QBrush
126     variant = model->data(model->index(0, 0), Qt::BackgroundRole);
127     if (variant.isValid())
128         MODELTESTER_VERIFY(variant.canConvert<QColor>() || variant.canConvert<QBrush>());
129 
130     variant = model->data(model->index(0, 0), Qt::ForegroundRole);
131     if (variant.isValid())
132         MODELTESTER_VERIFY(variant.canConvert<QColor>() || variant.canConvert<QBrush>());
133 
134 #undef MODELTESTER_VERIFY
135 
136 #else
137     Q_UNUSED(tester);
138 #endif // QT_GUI_LIB
139 
140     return true;
141 }
142 } // namespaceQTestPrivate
143 
144 QT_END_NAMESPACE
145 
146 #endif // QABSTRACTITEMMODELTESTER_H
147