Launcher: add help page

Collect some standard information directly in the launcher. Text to be
reviewed, this is just a first draft.

src/GUI/qml/HelpSupport.qml

@@ -0,0 +1,84 @@
+import QtQuick 2.4
+import FlightGear.Launcher 1.0
+import "."
+
+Item {
+    id: root
+
+    readonly property string forumLink: "href=\"http://forum.flightgear.org\"";
+    readonly property string wikiLink: "href=\"http://wiki.flightgear.org\"";
+
+    Flickable
+    {
+        id: flick
+
+        contentHeight: contentColumn.childrenRect.height
+        flickableDirection: Flickable.VerticalFlick
+        height: parent.height
+        width: parent.width - (Style.strutSize * 4 + scrollbar.width)
+        x: Style.strutSize * 2
+        y: Style.strutSize
+
+        Column {
+            id: contentColumn
+            spacing: Style.strutSize
+            width: parent.width
+
+            Text {
+                width: parent.width
+                font.pixelSize: Style.baseFontPixelSize * 1.5
+                color: Style.baseTextColor
+                wrapMode: Text.WordWrap
+
+                text: qsTr("<p>FlightGear is open-source software, developed entirely by volunteers. This means " +
+                           "we can't offer the same kind of support as a commercial product, but we have " +
+                           "an excellent user community, many of whom are willing to help out " +
+                           "other users. The easiest place to ask questions and get support is at <a %1>our forums</a>.</p>\n" +
+                           "<p>To get started with the simulator, please use our tutorial system: " +
+                           "this is available from the 'Help' menu in the simulator, and teaches the basics of " +
+                           "getting the Cessna 172 airborne and flying a standard circuit.</p>\n" +
+                           "<p>Another good source of information is <a %2>the official wiki</a>, which contains " +
+                           "FAQs, tutorials and information on individual aircraft, scenery areas and more."
+                           ).arg(root.forumLink).arg(root.wikiLink)
+
+                onLinkActivated: {
+                    Qt.openUrlExternally(link)
+                }
+            }
+
+            Text {
+                width: parent.width
+                font.pixelSize: Style.baseFontPixelSize * 1.5
+                color: Style.baseTextColor
+                wrapMode: Text.WordWrap
+
+                readonly property string bugTrackerLink: "href=\"https://sourceforge.net/p/flightgear/codetickets/new/\"";
+                readonly property string sceneryDBLink: "href=\"https://scenery.flightgear.org\"";
+
+                text: qsTr("<p>If you've found a bug, please consider if it's in a particular aircraft, " +
+                           "the scenery, or in the main program. Aircraft are developed by many different people, " +
+                           "so <a %1>our forums</a> are the best way to identify the author(s) and contact them. For bugs in the " +
+                           "program, please check our <a %2>bug tracker</a>; first by searching for existing bugs, and " +
+                           "then creating a new ticket if necessary.</p>\n" +
+                           "<p>Due to the automated way we generate our world scenery, it's usually not possible " +
+                           "to fix individual data issues, such as missing roads or misplaced coastlines. For 3D models " +
+                           "placed in the scenery, you can submit improvements to <a %3>our scenery database.</a>" +
+                           "</p>"
+                            ).arg(root.forumLink).arg(bugTrackerLink).arg(sceneryDBLink)
+
+                onLinkActivated: {
+                    Qt.openUrlExternally(link)
+                }
+            }
+        }
+
+    } // of flickable
+
+    Scrollbar {
+        id: scrollbar
+        anchors.right: parent.right
+        height: flick.height
+        flickable: flick
+        visible: flick.contentHeight > flick.height
+    }
+}

src/GUI/qml/Launcher.qml

@@ -25,6 +25,7 @@ Item {
         ListElement { title: qsTr("Settings"); pageSource: ""; iconPath: "qrc:///svg/toolbox-settings"; state:"settings" }
 
         ListElement { title: qsTr("Add-ons"); pageSource: "qrc:///qml/AddOns.qml"; iconPath: "qrc:///svg/toolbox-addons"; state:"loader" }
+        ListElement { title: qsTr("Help"); pageSource: "qrc:///qml/HelpSupport.qml"; iconPath: "qrc:///toolbox-help"; state:"loader" }
 
     }
 

src/GUI/resources.qrc

@@ -28,6 +28,7 @@
         <file alias="toolbox-settings">assets/toolbox-settings.png</file>
         <file alias="toolbox-summary">assets/toolbox-summary.png</file>
         <file alias="toolbox-addons">assets/toolbox-addons.png</file>
+        <file alias="toolbox-help">assets/toolbox-help.png</file>
         <file>qml/AircraftList.qml</file>
         <file>qml/AircraftRating.qml</file>
         <file>qml/ArrowButton.qml</file>
@@ -134,6 +135,7 @@
         <file alias="favourite-icon-filled">assets/icons8-christmas-star-filled.png</file>
         <file alias="favourite-icon-outline">assets/icons8-christmas-star-outline.png</file>
         <file>qml/FirstRun.qml</file>
+        <file>qml/HelpSupport.qml</file>
     </qresource>
     <qresource prefix="/preview">
         <file alias="close-icon">assets/preview-close.png</file>