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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
//![document]
import QtQuick 1.0
//![parent begin]
Rectangle {
//![parent begin]
id: screen
width: 400; height: 500
//! [signal declaration]
signal trigger
signal send (string notice)
signal perform (string task, variant object)
//! [signal declaration]
//! [signal handler declaration]
onTrigger: console.log("trigger signal emitted")
onSend: {
console.log("send signal emitted with notice: " + notice)
}
onPerform: console.log("perform signal emitted")
//! [signal handler declaration]
//! [automatic signals]
Rectangle {
id: sprite
width: 25; height: 25
x: 50; y: 15
onXChanged: console.log("x property changed, emitted xChanged signal")
onYChanged: console.log("y property changed, emitted yChanged signal")
}
//! [automatic signals]
//! [signal emit]
Rectangle {
id: messenger
signal send( string person, string notice)
onSend: {
console.log("For " + person + ", the notice is: " + notice)
}
Component.onCompleted: messenger.send("Tom", "the door is ajar.")
}
//! [signal emit]
//! [connect method]
Rectangle {
id: relay
signal send( string person, string notice)
onSend: console.log("Send signal to: " + person + ", " + notice)
Component.onCompleted: {
relay.send.connect(sendToPost)
relay.send.connect(sendToTelegraph)
relay.send.connect(sendToEmail)
relay.send("Tom", "Happy Birthday")
}
function sendToPost(person, notice) {
console.log("Sending to post: " + person + ", " + notice)
}
function sendToTelegraph(person, notice) {
console.log("Sending to telegraph: " + person + ", " + notice)
}
function sendToEmail(person, notice) {
console.log("Sending to email: " + person + ", " + notice)
}
}
//! [connect method]
//! [forward signal]
Rectangle {
id: forwarder
width: 100; height: 100
signal send()
onSend: console.log("Send clicked")
MouseArea {
id: mousearea
anchors.fill: parent
onClicked: console.log("MouseArea clicked")
}
Component.onCompleted: {
mousearea.clicked.connect(send)
}
}
//! [forward signal]
//! [connect method]
//![parent end]
}
//![parent end]
//![document]
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