Improve 1st start experience

This commit adds a start page that is shown when there are no dives in
the list, for example when the user first starts the app. Instead of a
large empty screen, we offer 3 ways for the user to get dives onto the
device: download from cloud storage, dive computer and adding dives
manually.

This fills in the empty space in the dive list, and isn't a top-level
item since it really just makes sure the user isn't greeted with a big
empty space, which looks pretty unpolished, but rather guided through
the first steps.

Needs aligning of the naming in the actions.

Signed-off-by: Sebastian Kügler <sebas@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-mobile/qml/DiveList.qml

@@ -167,4 +167,12 @@ Rectangle {
 		section.criteria: ViewSection.FullString
 		section.delegate: tripHeading
 	}
+	StartPage {
+		anchors.fill: parent
+		opacity: (diveModel.rowCount() == 0) ? 1.0 : 0
+		Behavior on opacity { NumberAnimation { duration: units.shortDuration } }
+		Component.onCompleted: {
+			print("diveModel.count " + diveModel.rowCount());
+		}
+	}
 }

qt-mobile/qml/StartPage.qml

@@ -0,0 +1,60 @@
+import QtQuick 2.5
+import QtQuick.Controls 1.2
+import QtQuick.Layouts 1.1
+
+Item {
+	ColumnLayout {
+		id: startpage
+		anchors.fill: parent
+		anchors.margins: units.gridUnit * 4
+
+		property int buttonWidth: welcomeText.width * 0.66
+
+		Label {
+			Layout.bottomMargin: units.largeSpacing
+			text: "Subsurface Divelog"
+			font.pointSize: welcomeText.font.pointSize * 2
+		}
+
+		Label {
+			id: welcomeText
+			Layout.fillWidth: true
+			Layout.bottomMargin: units.largeSpacing
+			text: "No recorded dives found. You can download your dives to this device from the Subsurface cloud storage service, from your dive computer, or add them manually."
+			wrapMode: Text.WordWrap
+			Layout.columnSpan: 2
+		}
+		Button {
+			id: cloudstorageButton
+			Layout.bottomMargin: units.largeSpacing
+			Layout.preferredWidth: startpage.buttonWidth
+			text: "Connect to CloudStorage..."
+			onClicked: {
+				stackView.push(prefsWindow)
+			}
+		}
+		Button {
+			id: computerButton
+			Layout.preferredWidth: startpage.buttonWidth
+			Layout.bottomMargin: units.largeSpacing
+			text: "Transfer from dive computer..."
+			onClicked: {
+				stackView.push(downloadDivesWindow)
+			}
+		}
+		Button {
+			id: manualButton
+			Layout.preferredWidth: startpage.buttonWidth
+			Layout.bottomMargin: units.largeSpacing
+			text: "Add dive manually..."
+			onClicked: {
+				manager.addDive();
+				stackView.push(detailsWindow)
+			}
+		}
+		Item {
+			width: parent.width
+			Layout.fillHeight: true
+		}
+	}
+}

qt-mobile/qml/mobile-resources.qrc

@@ -9,6 +9,7 @@
         <file>Log.qml</file>
         <file>TopBar.qml</file>
         <file>ThemeTest.qml</file>
+        <file>StartPage.qml</file>
         <file alias="Label.qml">components/Label.qml</file>
         <file alias="subsurface-mobile-icon.png">../../icons/subsurface-mobile-icon.png</file>
     </qresource>