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/* -*- Mode: JS2; indent-tabs-mode: nil; js2-basic-offset: 4 -*- */
/* vim: set et ts=4 sw=4: */
/*
* Copyright (c) 2023 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, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author: Marcus Lundblad <ml@dfupdate.se>
*/
import Gtk from 'gi://Gtk';
import GObject from 'gi://GObject';
import Graphene from 'gi://Graphene';
class RotationButton extends Gtk.Button {
vfunc_snapshot(snapshot) {
let mapView = this.parent.parent.mapView;
snapshot.save();
if (mapView?.map.viewport.rotation != 0.0) {
// rotate around the center of the icon
let width = this.get_width();
let height = this.get_height();
let point = new Graphene.Point();
point.init(width / 2, height / 2);
snapshot.translate(point);
snapshot.rotate(mapView.map.viewport.rotation * 180 / Math.PI);
point.init(-width / 2, -height / 2);
snapshot.translate(point);
}
super.vfunc_snapshot(snapshot);
snapshot.restore();
}
}
GObject.registerClass(RotationButton);
export class ZoomAndRotateControls extends Gtk.Box {
constructor({ mapView, ...params }) {
super(params);
this._mapView = mapView;
this._mapView.map.viewport.connect('notify::rotation', () => {
this._updateRotationButton();
});
this._updateRotationButton();
}
_updateRotationButton() {
let rotation = this._mapView.map.viewport.rotation;
if (rotation != 0)
this._rotationButton.queue_draw();
this._revealer.reveal_child = rotation != 0;
}
get mapView() {
return this._mapView;
}
}
GObject.registerClass({
Template: 'resource:///org/gnome/Maps/ui/zoom-and-rotate-controls.ui',
InternalChildren: ['rotationButton',
'revealer']
}, ZoomAndRotateControls);
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