add qrcode scanner

1 files changed, 134 insertions, 0 deletions

diff --git a/components/QRCodeScanner.qml b/components/QRCodeScanner.qml
new file mode 100644
index 00000000..10c1592a
--- /dev/null
+++ b/components/QRCodeScanner.qml
@@ -0,0 +1,134 @@
+// 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"
+        }
+    }
+}