8 files changed, 93 insertions, 0 deletions
diff --git a/src/components/map/MapConstants.js b/src/components/map/MapConstants.js
index 524dd1ae..a0166d15 100644
--- a/src/components/map/MapConstants.js
+++ b/src/components/map/MapConstants.js
@@ -1,5 +1,6 @@
 export const MAP_SIZE = 50;
 export const TILE_SIZE_IN_PIXELS = 100;
+export const TILE_SIZE_IN_METERS = 0.5;
 export const MAP_SIZE_IN_PIXELS = MAP_SIZE * TILE_SIZE_IN_PIXELS;
 
 export const OBJECT_MARGIN_IN_PIXELS = TILE_SIZE_IN_PIXELS / 5;
diff --git a/src/components/map/MapStageComponent.js b/src/components/map/MapStageComponent.js
index 62d8687c..d3c75da0 100644
--- a/src/components/map/MapStageComponent.js
+++ b/src/components/map/MapStageComponent.js
@@ -34,6 +34,13 @@ class MapStageComponent extends React.Component {
     componentDidMount() {
         window.addEventListener("resize", this.updateDimensions);
         window.addEventListener("wheel", this.updateScale);
+
+        window["exportCanvasToImage"] = () => {
+            const canvasData = this.stage.getStage().toDataURL();
+            const newWindow = window.open('about:blank', 'OpenDC Canvas Export');
+            newWindow.document.write("<img src='" + canvasData + "' alt='Canvas Image Export'/>");
+            newWindow.document.title = "OpenDC Canvas Export";
+        }
     }
 
     componentWillUnmount() {
diff --git a/src/components/map/controls/ExportCanvasComponent.js b/src/components/map/controls/ExportCanvasComponent.js
new file mode 100644
index 00000000..2f044ffe
--- /dev/null
+++ b/src/components/map/controls/ExportCanvasComponent.js
@@ -0,0 +1,13 @@
+import React from "react";
+
+const ExportCanvasComponent = () => (
+    <button
+        className="btn btn-success btn-circle btn-sm"
+        title="Export Canvas to PNG Image"
+        onClick={() => window["exportCanvasToImage"]()}
+    >
+        <span className="fa fa-camera"/>
+    </button>
+);
+
+export default ExportCanvasComponent;
diff --git a/src/components/map/controls/ScaleIndicatorComponent.js b/src/components/map/controls/ScaleIndicatorComponent.js
new file mode 100644
index 00000000..fd9483b5
--- /dev/null
+++ b/src/components/map/controls/ScaleIndicatorComponent.js
@@ -0,0 +1,14 @@
+import React from "react";
+import {TILE_SIZE_IN_METERS, TILE_SIZE_IN_PIXELS} from "../MapConstants";
+import "./ScaleIndicatorComponent.css";
+
+const ScaleIndicatorComponent = ({scale}) => (
+    <div
+        className="scale-indicator"
+        style={{width: TILE_SIZE_IN_PIXELS * scale}}
+    >
+        {TILE_SIZE_IN_METERS}m
+    </div>
+);
+
+export default ScaleIndicatorComponent;
diff --git a/src/components/map/controls/ScaleIndicatorComponent.sass b/src/components/map/controls/ScaleIndicatorComponent.sass
new file mode 100644
index 00000000..f2d2b55b
--- /dev/null
+++ b/src/components/map/controls/ScaleIndicatorComponent.sass
@@ -0,0 +1,9 @@
+.scale-indicator
+  position: absolute
+  right: 10px
+  bottom: 10px
+  z-index: 50
+
+  border: solid 2px #212529
+  border-top: none
+  border-left: none
diff --git a/src/components/map/controls/ToolPanelComponent.js b/src/components/map/controls/ToolPanelComponent.js
new file mode 100644
index 00000000..19e9f0d9
--- /dev/null
+++ b/src/components/map/controls/ToolPanelComponent.js
@@ -0,0 +1,13 @@
+import React from "react";
+import ZoomControlContainer from "../../../containers/map/controls/ZoomControlContainer";
+import ExportCanvasComponent from "./ExportCanvasComponent";
+import "./ToolPanelComponent.css";
+
+const ToolPanelComponent = () => (
+    <div className="tool-panel">
+        <ZoomControlContainer/>
+        <ExportCanvasComponent/>
+    </div>
+);
+
+export default ToolPanelComponent;
diff --git a/src/components/map/controls/ToolPanelComponent.sass b/src/components/map/controls/ToolPanelComponent.sass
new file mode 100644
index 00000000..996712b3
--- /dev/null
+++ b/src/components/map/controls/ToolPanelComponent.sass
@@ -0,0 +1,5 @@
+.tool-panel
+  position: absolute
+  left: 10px
+  bottom: 10px
+  z-index: 50
diff --git a/src/components/map/controls/ZoomControlComponent.js b/src/components/map/controls/ZoomControlComponent.js
new file mode 100644
index 00000000..c5628d16
--- /dev/null
+++ b/src/components/map/controls/ZoomControlComponent.js
@@ -0,0 +1,31 @@
+import React from "react";
+import {MAP_MAX_SCALE, MAP_MIN_SCALE, MAP_SCALE_PER_EVENT} from "../MapConstants";
+
+const ZoomControlComponent = ({mapScale, setMapScale}) => {
+    const zoom = (out) => {
+        const newScale = out ? mapScale / MAP_SCALE_PER_EVENT : mapScale * MAP_SCALE_PER_EVENT;
+        const boundedScale = Math.min(Math.max(MAP_MIN_SCALE, newScale), MAP_MAX_SCALE);
+        setMapScale(boundedScale);
+    };
+
+    return (
+        <span>
+            <button
+                className="btn btn-default btn-circle btn-sm mr-1"
+                title="Zoom in"
+                onClick={() => zoom(false)}
+            >
+                <span className="fa fa-plus"/>
+            </button>
+            <button
+                className="btn btn-default btn-circle btn-sm mr-1"
+                title="Zoom out"
+                onClick={() => zoom(true)}
+            >
+                <span className="fa fa-minus"/>
+            </button>
+        </span>
+    );
+};
+
+export default ZoomControlComponent;