1#!/usr/bin/env python
2
3
4#############################################################################
5##
6## Copyright (C) 2013 Riverbank Computing Limited.
7## Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
8## All rights reserved.
9##
10## This file is part of the examples of PyQt.
11##
12## $QT_BEGIN_LICENSE:BSD$
13## You may use this file under the terms of the BSD license as follows:
14##
15## "Redistribution and use in source and binary forms, with or without
16## modification, are permitted provided that the following conditions are
17## met:
18##   * Redistributions of source code must retain the above copyright
19##     notice, this list of conditions and the following disclaimer.
20##   * Redistributions in binary form must reproduce the above copyright
21##     notice, this list of conditions and the following disclaimer in
22##     the documentation and/or other materials provided with the
23##     distribution.
24##   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
25##     the names of its contributors may be used to endorse or promote
26##     products derived from this software without specific prior written
27##     permission.
28##
29## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
40## $QT_END_LICENSE$
41##
42#############################################################################
43
44
45import sys
46
47from PyQt5.QtCore import (pyqtProperty, pyqtSignal, Q_CLASSINFO,
48        QCoreApplication, QDate, QObject, QTime, QUrl)
49from PyQt5.QtGui import QColor
50from PyQt5.QtQml import (qmlAttachedPropertiesObject, qmlRegisterType,
51        QQmlComponent, QQmlEngine, QQmlListProperty)
52
53
54QML = b'''
55import People 1.0
56import QtQuick 2.0
57
58BirthdayParty {
59    onPartyStarted: console.log("This party started rockin' at " + time);
60
61    host: Boy {
62        name: "Bob Jones"
63        shoe { size: 12; color: "white"; brand: "Nike"; price: 90.0 }
64    }
65
66    Boy {
67        name: "Leo Hodges"
68        BirthdayParty.rsvp: "2009-07-06"
69        shoe { size: 10; color: "black"; brand: "Reebok"; price: 59.95 }
70    }
71
72    Boy {
73        name: "Jack Smith"
74        shoe { size: 8; color: "blue"; brand: "Puma"; price: 19.95 }
75    }
76
77    Girl {
78        name: "Anne Brown"
79        BirthdayParty.rsvp: "2009-07-01"
80        shoe.size: 7
81        shoe.color: "red"
82        shoe.brand: "Marc Jacobs"
83        shoe.price: 699.99
84    }
85}
86'''
87
88
89class ShoeDescription(QObject):
90    def __init__(self, parent=None):
91        super(ShoeDescription, self).__init__(parent)
92
93        self._size = 0
94        self._color = QColor()
95        self._brand = ''
96        self._price = 0.0
97
98    @pyqtProperty(int)
99    def size(self):
100        return self._size
101
102    @size.setter
103    def size(self, size):
104        self._size = size
105
106    @pyqtProperty(QColor)
107    def color(self):
108        return self._color
109
110    @color.setter
111    def color(self, color):
112        self._color = color
113
114    @pyqtProperty(str)
115    def brand(self):
116        return self._brand
117
118    @brand.setter
119    def brand(self, brand):
120        self._brand = brand
121
122    @pyqtProperty(float)
123    def price(self):
124        return self._price
125
126    @price.setter
127    def price(self, price):
128        self._price = price
129
130
131class Person(QObject):
132    def __init__(self, parent=None):
133        super(Person, self).__init__(parent)
134
135        self._name = ''
136        self._shoe = ShoeDescription()
137
138    @pyqtProperty(str)
139    def name(self):
140        return self._name
141
142    @name.setter
143    def name(self, name):
144        self._name = name
145
146    @pyqtProperty(ShoeDescription)
147    def shoe(self):
148        return self._shoe
149
150
151class Boy(Person):
152    pass
153
154
155class Girl(Person):
156    pass
157
158
159class BirthdayPartyAttached(QObject):
160    def __init__(self, parent):
161        super(BirthdayPartyAttached, self).__init__(parent)
162
163        self._rsvp = QDate()
164
165    @pyqtProperty(QDate)
166    def rsvp(self):
167        return self._rsvp
168
169    @rsvp.setter
170    def rsvp(self, rsvp):
171        self._rsvp = rsvp
172
173
174class BirthdayParty(QObject):
175    Q_CLASSINFO('DefaultProperty', 'guests')
176
177    partyStarted = pyqtSignal(QTime, arguments=['time'])
178
179    def __init__(self, parent=None):
180        super(BirthdayParty, self).__init__(parent)
181
182        self._host = None
183        self._guests = []
184
185    @pyqtProperty(Person)
186    def host(self):
187        return self._host
188
189    @host.setter
190    def host(self, host):
191        self._host = host
192
193    @pyqtProperty(QQmlListProperty)
194    def guests(self):
195        return QQmlListProperty(Person, self, self._guests)
196
197    def startParty(self):
198        self.partyStarted.emit(QTime.currentTime())
199
200
201app = QCoreApplication(sys.argv)
202
203qmlRegisterType(BirthdayPartyAttached)
204qmlRegisterType(BirthdayParty, "People", 1, 0, "BirthdayParty",
205        attachedProperties=BirthdayPartyAttached)
206qmlRegisterType(ShoeDescription)
207qmlRegisterType(Person)
208qmlRegisterType(Boy, "People", 1, 0, "Boy")
209qmlRegisterType(Girl, "People", 1, 0, "Girl")
210
211engine = QQmlEngine()
212
213component = QQmlComponent(engine)
214component.setData(QML, QUrl())
215
216party = component.create()
217
218if party is not None and party.host is not None:
219    print("\"%s\" is having a birthday!" % party.host.name)
220
221    if isinstance(party.host, Boy):
222        print("He is inviting:")
223    else:
224        print("She is inviting:")
225
226    for guest in party.guests:
227        attached = qmlAttachedPropertiesObject(BirthdayParty, guest, False)
228
229        if attached is not None:
230            rsvpDate = attached.property('rsvp')
231        else:
232            rsvpDate = QDate()
233
234        if rsvpDate.isNull():
235            print("    \"%s\" RSVP date: Hasn't RSVP'd" % guest.name)
236        else:
237            print("    \"%s\" RSVP date: %s" % (guest.name, rsvpDate.toString()))
238
239    party.startParty()
240else:
241    for e in component.errors():
242        print("Error:", e.toString());
243