[gnome-maps/wip/mlundblad/transit-routing: 1/2] WIP: Add print layout for transit

[Marcus Lundblad <mlundblad src gnome org>]

commit 2c00e73366a18db9894b3fca57350887438033a7
Author: Marcus Lundblad <ml update uu se>
Date:   Tue Sep 20 23:27:09 2016 +0200

    WIP: Add print layout for transit

 src/org.gnome.Maps.src.gresource.xml |    1 +
 src/transitPrintLayout.js            |   70 ++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+), 0 deletions(-)
---
diff --git a/src/org.gnome.Maps.src.gresource.xml b/src/org.gnome.Maps.src.gresource.xml
index fa1b45d..89ff771 100644
--- a/src/org.gnome.Maps.src.gresource.xml
+++ b/src/org.gnome.Maps.src.gresource.xml
@@ -82,6 +82,7 @@
     <file>transitMoreRow.js</file>
     <file>transitOptions.js</file>
     <file>transitPlan.js</file>
+    <file>transitPrintLayout.js</file>
     <file>transitRouteLabel.js</file>
     <file>transitStopRow.js</file>
     <file>transitWalkMarker.js</file>
diff --git a/src/transitPrintLayout.js b/src/transitPrintLayout.js
new file mode 100644
index 0000000..d39fa58
--- /dev/null
+++ b/src/transitPrintLayout.js
@@ -0,0 +1,70 @@
+/* -*- Mode: JS2; indent-tabs-mode: nil; js2-basic-offset: 4 -*- */
+/* vim: set et ts=4 sw=4: */
+/*
+ * Copyright (c) 2016 Marcus Lundblad.
+ *
+ * GNOME Maps 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 2 of the License, or (at your
+ * option) any later version.
+ *
+ * GNOME Maps 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 GNOME Maps; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Marcus Lundblad <ml update uu se>
+ */
+
+const Lang = imports.lang;
+
+const PrintLayout = imports.printLayout;
+
+/* All following constants are ratios of surface size to page size */
+const _Header = {
+    SCALE_X: 0.9,
+    SCALE_Y: 0.03,
+    SCALE_MARGIN: 0.01
+};
+const _MapView = {
+    SCALE_X: 1.0,
+    SCALE_Y: 0.4,
+    SCALE_MARGIN: 0.04,
+    ZOOM_LEVEL: 18
+};
+
+const TransitPrintLayout = new Lang.Class({
+    Name: 'TransitPrintLayout',
+    Extends: PrintLayout.PrintLayout,
+
+    _init: function(params) {
+        this._itinerary = params.itinerary;
+        delete params.itinerary;
+
+        /* TODO: calculate the actual number of surfaces needed */
+        let totalSurfaces = 1;
+        params.totalSurfaces = totalSurfaces;
+
+        this.parent(params);
+    },
+
+    render: function() {
+        let headerWidth = _Header.SCALE_X * this._pageWidth;
+        let headerHeight = _Header.SCALE_Y * this._pageHeight;
+        let headerMargin = _Header.SCALE_MARGIN * this._pageHeight;
+
+        let mapViewWidth = _MapView.SCALE_X * this._pageWidth;
+        let mapViewHeight = _MapView.SCALE_Y * this._pageHeight;
+        let mapViewMargin = _MapView.SCALE_MARGIN * this._pageHeight;
+        let mapViewZoomLevel = _MapView.ZOOM_LEVEL;
+
+        let dy = headerHeight + headerMargin;
+
+        this._createNewPage();
+        this._adjustPage(dy);
+        this._drawHeader(headerWidth, headerHeight);
+    }
+});