子类化QLabel显示图片并在label上画矩形截图并显示

/**************************************************************************** ** Meta object code from reading C++ file 'labelpress.h' ** ** Created by: The Qt Meta Object Compiler version 67 (Qt 5.3.2) ** ** WARNING! All changes made in this file will be lost! *****************************************************************************/ #include "../../aaa/labelpress.h" #include <QtCore/qbytearray.h> #include <QtCore/qmetatype.h> #if !defined(Q_MOC_OUTPUT_REVISION) #error "The header file 'labelpress.h' doesn't include <QObject>." #elif Q_MOC_OUTPUT_REVISION != 67 #error "This file was generated using the moc from 5.3.2. It" #error "cannot be used with the include files from this version of Qt." #error "(The moc has changed too much.)" #endif QT_BEGIN_MOC_NAMESPACE struct qt_meta_stringdata_LabelPress_t { QByteArrayData data[4]; char stringdata[45]; }; #define QT_MOC_LITERAL(idx, ofs, len) \ Q_STATIC_BYTE_ARRAY_DATA_HEADER_INITIALIZER_WITH_OFFSET(len, \ qptrdiff(offsetof(qt_meta_stringdata_LabelPress_t, stringdata) + ofs \ - idx * sizeof(QByteArrayData)) \ ) static const qt_meta_stringdata_LabelPress_t qt_meta_stringdata_LabelPress = { { QT_MOC_LITERAL(0, 0, 10), QT_MOC_LITERAL(1, 11, 20), QT_MOC_LITERAL(2, 32, 0), QT_MOC_LITERAL(3, 33, 11) }, "LabelPress\0signalCompleteCature\0\0" "catureImage" }; #undef QT_MOC_LITERAL static const uint qt_meta_data_LabelPress[] = { // content: 7, // revision 0, // classname 0, 0, // classinfo 1, 14, // methods 0, 0, // properties 0, 0, // enums/sets 0, 0, // constructors 0, // flags 1, // signalCount // signals: name, argc, parameters, tag, flags 1, 1, 19, 2, 0x06 /* Public */, // signals: parameters QMetaType::Void, QMetaType::QPixmap, 3, 0 // eod }; void LabelPress::qt_static_metacall(QObject *_o, QMetaObject::Call _c, int _id, void **_a) { if (_c == QMetaObject::InvokeMetaMethod) { LabelPress *_t = static_cast<LabelPress *>(_o); switch (_id) { case 0: _t->signalCompleteCature((*reinterpret_cast< QPixmap(*)>(_a[1]))); break; default: ; } } else if (_c == QMetaObject::IndexOfMethod) { int *result = reinterpret_cast<int *>(_a[0]); void **func = reinterpret_cast<void **>(_a[1]); { typedef void (LabelPress::*_t)(QPixmap ); if (*reinterpret_cast<_t *>(func) == static_cast<_t>(&LabelPress::signalCompleteCature)) { *result = 0; } } } } const QMetaObject LabelPress::staticMetaObject = { { &QLabel::staticMetaObject, qt_meta_stringdata_LabelPress.data, qt_meta_data_LabelPress, qt_static_metacall, 0, 0} }; const QMetaObject *LabelPress::metaObject() const { return QObject::d_ptr->metaObject ? QObject::d_ptr->dynamicMetaObject() : &staticMetaObject; } void *LabelPress::qt_metacast(const char *_clname) { if (!_clname) return 0; if (!strcmp(_clname, qt_meta_stringdata_LabelPress.stringdata)) return static_cast<void*>(const_cast< LabelPress*>(this)); return QLabel::qt_metacast(_clname); } int LabelPress::qt_metacall(QMetaObject::Call _c, int _id, void **_a) { _id = QLabel::qt_metacall(_c, _id, _a); if (_id < 0) return _id; if (_c == QMetaObject::InvokeMetaMethod) { if (_id < 1) qt_static_metacall(this, _c, _id, _a); _id -= 1; } else if (_c == QMetaObject::RegisterMethodArgumentMetaType) { if (_id < 1) *reinterpret_cast<int*>(_a[0]) = -1; _id -= 1; } return _id; } // SIGNAL 0 void LabelPress::signalCompleteCature(QPixmap _t1) { void *_a[] = { 0, const_cast<void*>(reinterpret_cast<const void*>(&_t1)) }; QMetaObject::activate(this, &staticMetaObject, 0, _a); } QT_END_MOC_NAMESPACE