monero-gui/components/QRCodeScanner.qml

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2017-01-31 04:36:08 +00:00
// Copyright (c) 2014-2017, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the copyright holder 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 HOLDER 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.
import QtQuick 2.0
import QtMultimedia 5.4
import QtQuick.Dialogs 1.2
import moneroComponents.QRCodeScanner 1.0
Rectangle {
id : root
x: 0
y: 0
z: parent.z+1
width: parent.width
height: parent.height
visible: false
color: "black"
state: "Stopped"
signal qrcode_decoded(string address, string payment_id, string amount, string tx_description, string recipient_name)
states: [
State {
name: "Capture"
StateChangeScript {
script: {
root.visible = true
camera.captureMode = Camera.CaptureStillImage
camera.start()
finder.enabled = true
}
}
},
State {
name: "Stopped"
StateChangeScript {
script: {
camera.stop()
root.visible = false
finder.enabled = false
}
}
}
]
Camera {
id: camera
objectName: "qrCameraQML"
captureMode: Camera.CaptureStillImage
focus {
focusMode: Camera.FocusContinuous
}
}
QRCodeScanner {
id : finder
objectName: "QrFinder"
onDecoded : {
root.qrcode_decoded(address, payment_id, amount, tx_description, recipient_name)
root.state = "Stopped"
}
onNotifyError : {
if( warning )
messageDialog.icon = StandardIcon.Critical
else {
messageDialog.icon = StandardIcon.Warning
root.state = "Stopped"
}
messageDialog.text = error
messageDialog.visible = true
}
}
VideoOutput {
id: viewfinder
visible: root.state == "Capture"
x: 0
y: 0
z: parent.z+1
width: parent.width
height: parent.height
source: camera
autoOrientation: true
MouseArea {
anchors.fill: parent
propagateComposedEvents: true
onPressAndHold: {
if (camera.lockStatus == Camera.locked)camera.unlock()
camera.searchAndLock()
}
onDoubleClicked: {
root.state = "Stopped"
}
}
}
MessageDialog {
id: messageDialog
title: "Scanning QrCode"
onAccepted: {
root.state = "Stopped"
}
}
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Component.onCompleted: {
if( QtMultimedia.availableCameras.length == 0) {
console.log("No camera available. Disable qrScannerEnabled");
appWindow.qrScannerEnabled = false;
}
}
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}