add QEAddressListModel and initial Addresses.qml page.

show sane main view when no wallet loaded.
show error dialog when wallet could not be loaded.
show wallet up_to_date indicator in title bar.
refactor QETransactionListModel to be more self-contained.

electrum/gui/qml/components/Addresses.qml

@@ -0,0 +1,88 @@
+import QtQuick 2.6
+import QtQuick.Layouts 1.0
+import QtQuick.Controls 2.0
+import QtQuick.Controls.Material 2.0
+
+import org.electrum 1.0
+
+Pane {
+    id: rootItem
+    anchors.fill: parent
+
+    property string title: Daemon.walletName + ' - ' + qsTr('Addresses')
+
+    ColumnLayout {
+        id: layout
+        width: parent.width
+        height: parent.height
+
+        Item {
+            width: parent.width
+            Layout.fillHeight: true
+
+            ListView {
+                id: listview
+                width: parent.width
+                height: parent.height
+                clip: true
+                model: Daemon.currentWallet.addressModel
+
+                delegate: AbstractButton {
+                    id: delegate
+                    width: ListView.view.width
+                    height: 30
+
+                    background: Rectangle {
+                        color: model.held ? Qt.rgba(1,0,0,0.5) :
+                            model.numtx > 0 && model.balance == 0 ? Qt.rgba(1,1,1,0.25) :
+                            model.type == 'receive' ? Qt.rgba(0,1,0,0.25) :
+                            Qt.rgba(1,0.93,0,0.25)
+                        Rectangle {
+                            height: 1
+                            width: parent.width
+                            anchors.top: parent.top
+                            border.color: Material.accentColor
+                            visible: model.index > 0
+                        }
+                    }
+                    RowLayout {
+                        x: 10
+                        spacing: 5
+                        width: parent.width - 20
+                        anchors.verticalCenter: parent.verticalCenter
+
+                        Label {
+                            font.pixelSize: 12
+                            text: model.type
+                        }
+                        Label {
+                            font.pixelSize: 12
+                            font.family: "Courier" // TODO: use system monospace font
+                            text: model.address
+                            elide: Text.ElideMiddle
+                            Layout.maximumWidth: delegate.width / 4
+                        }
+                        Label {
+                            font.pixelSize: 12
+                            text: model.label
+                            elide: Text.ElideRight
+                            Layout.minimumWidth: delegate.width / 4
+                            Layout.fillWidth: true
+                        }
+                        Label {
+                            font.pixelSize: 12
+                            text: model.balance
+                        }
+                        Label {
+                            font.pixelSize: 12
+                            text: model.numtx
+                        }
+                    }
+                }
+            }
+
+        }
+    }
+
+    Component.onCompleted: Daemon.currentWallet.addressModel.init_model()
+}

electrum/gui/qml/components/WalletMainView.qml

@@ -9,12 +9,35 @@ Item {
     property string title: Daemon.walletName
 
     property QtObject menu: Menu {
-        MenuItem { text: 'Wallets'; onTriggered: stack.push(Qt.resolvedUrl('Wallets.qml')) }
-        MenuItem { text: 'Network'; onTriggered: stack.push(Qt.resolvedUrl('NetworkStats.qml')) }
+        MenuItem { text: qsTr('Addresses'); onTriggered: stack.push(Qt.resolvedUrl('Addresses.qml')); visible: Daemon.currentWallet != null }
+        MenuItem { text: qsTr('Wallets'); onTriggered: stack.push(Qt.resolvedUrl('Wallets.qml')) }
+        MenuItem { text: qsTr('Network'); onTriggered: stack.push(Qt.resolvedUrl('NetworkStats.qml')) }
+    }
+
+    ColumnLayout {
+        anchors.centerIn: parent
+        width: parent.width
+        spacing: 40
+        visible: Daemon.currentWallet == null
+
+        Label {
+            text: qsTr('No wallet loaded')
+            font.pixelSize: 24
+            Layout.alignment: Qt.AlignHCenter
+        }
+
+        Button {
+            text: qsTr('Open/Create Wallet')
+            Layout.alignment: Qt.AlignHCenter
+            onClicked: {
+                stack.push(Qt.resolvedUrl('Wallets.qml'))
+            }
+        }
     }
 
     ColumnLayout {
         anchors.fill: parent
+        visible: Daemon.currentWallet != null
 
         TabBar {
             id: tabbar

electrum/gui/qml/components/main.qml

@@ -31,6 +31,7 @@ ApplicationWindow
                 onClicked: stack.pop()
             }
             Item {
+                visible: Network.isTestNet
                 width: column.width
                 height: column.height
                 MouseArea {
@@ -46,7 +47,6 @@ ApplicationWindow
 
                 Column {
                     id: column
-                    visible: Network.isTestNet
                     Image {
                         anchors.horizontalCenter: parent.horizontalCenter
                         width: 16
@@ -63,15 +63,22 @@ ApplicationWindow
                 }
             }
 
+            Image {
+                Layout.preferredWidth: 16
+                Layout.preferredHeight: 16
+                source: Daemon.currentWallet.isUptodate ? "../../icons/status_connected.png" : "../../icons/status_lagging.png"
+            }
+
             Label {
                 text: stack.currentItem.title
                 elide: Label.ElideRight
                 horizontalAlignment: Qt.AlignHCenter
                 verticalAlignment: Qt.AlignVCenter
                 Layout.fillWidth: true
-                font.pointSize: 10
+                font.pixelSize: 14
                 font.bold: true
             }
+
             ToolButton {
                 text: qsTr("⋮")
                 onClicked: {
@@ -203,5 +210,10 @@ ApplicationWindow
 //             var dialog = _openWallet.createObject(app)
             //dialog.open()
         }
+        function onWalletOpenError(error) {
+            console.log('wallet open error')
+            var dialog = app.messageDialog.createObject(app, {'text': error})
+            dialog.open()
+        }
     }
 }