[welcomeq] Add top-text

- Fix QML indentation to the canonical 4-spaces
 - Add a header at the top of the page
 - Force the image to load from the filesystem

src/modules/welcomeq/welcomeq.qml

@@ -1,3 +1,20 @@
+/* === This file is part of Calamares - <https://github.com/calamares> ===
+ *
+ *   Copyright 2020, Adriaan de Groot <groot@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
 import calamares.ui 1.0
 
 import QtQuick 2.10
@@ -9,21 +26,33 @@ import QtQuick.Window 2.3
 
 Page
 {
-	id: welcome
+    id: welcome
 
-	header: Item
-	{
-		width: parent.width
-		height: 150
+    header: Item
+    {
+        width: parent.width
+        height: 150
 
-		Image
-		{
-			anchors.centerIn: parent
-			source: Branding.imagePath(Branding.ProductWelcome)
-			height: Math.min(100, parent.height)
-			width: height
-			sourceSize.width: width
-			sourceSize.height: height
-		}
-	}
+        Text
+        {
+            id: welcomeTopText
+            anchors.horizontalCenter: parent.horizontalCenter
+            anchors.top: parent.top
+            // In QML, QString::arg() only takes one argument
+            text: qsTr("<h3>%1 <quote>%2</quote></h3>").arg(Branding.string(Branding.ProductName)).arg(Branding.string(Branding.Version))
+        }
+        Image
+        {
+            id: welcomeImage
+            anchors.centerIn: parent
+            // imagePath() returns a full pathname, so make it refer to the filesystem
+            // .. otherwise the path is interpreted relative to the "call site", which
+            // .. might be the QRC file.
+            source: "file:/" + Branding.imagePath(Branding.ProductWelcome)
+            height: Math.min(100, parent.height)
+            width: height
+            sourceSize.width: width
+            sourceSize.height: height
+        }
+    }
 }