Adding OpenStreetMap attribution

Author: DantSu

README.md

@@ -30,6 +30,8 @@ use \DantSu\OpenStreetMapStaticAPI\Markers;
         (new Markers(__DIR__ . '/resources/marker.png'))
             ->setAnchor(Markers::ANCHOR_CENTER, Markers::ANCHOR_BOTTOM)
             ->addMarker(new LatLng(44.351933, 2.568113))
+            ->addMarker(new LatLng(44.351510, 2.570020))
+            ->addMarker(new LatLng(44.351873, 2.566250))
     )
     ->addLine(
         (new Line('FF0000', 2))

docs/classes/DantSu/OpenStreetMapStaticAPI/BoundingBox.md

@@ -129,4 +129,4 @@ Convert a latitude and longitude to a XY pixel position in the image
 
 
 ---
-> Automatically generated from source code comments on 2021-09-08 using [phpDocumentor](http://www.phpdoc.org/)
+> Automatically generated from source code comments on 2021-09-09 using [phpDocumentor](http://www.phpdoc.org/)

docs/classes/DantSu/OpenStreetMapStaticAPI/LatLng.md

@@ -82,4 +82,4 @@ Get longitude
 
 
 ---
-> Automatically generated from source code comments on 2021-09-08 using [phpDocumentor](http://www.phpdoc.org/)
+> Automatically generated from source code comments on 2021-09-09 using [phpDocumentor](http://www.phpdoc.org/)

docs/classes/DantSu/OpenStreetMapStaticAPI/Line.md

@@ -98,4 +98,4 @@ Draw the line on the map image.
 
 
 ---
-> Automatically generated from source code comments on 2021-09-08 using [phpDocumentor](http://www.phpdoc.org/)
+> Automatically generated from source code comments on 2021-09-09 using [phpDocumentor](http://www.phpdoc.org/)

docs/classes/DantSu/OpenStreetMapStaticAPI/Markers.md

@@ -135,4 +135,4 @@ Draw markers on the image map.
 
 
 ---
-> Automatically generated from source code comments on 2021-09-08 using [phpDocumentor](http://www.phpdoc.org/)
+> Automatically generated from source code comments on 2021-09-09 using [phpDocumentor](http://www.phpdoc.org/)

docs/classes/DantSu/OpenStreetMapStaticAPI/OpenStreetMap.md

@@ -23,7 +23,6 @@ DantSu\OpenStreetMapStaticAPI\OpenStreetMap is a PHP library created for easily
 - [addMarkers](#-addmarkers) 
 - [addLine](#-addline) 
 - [getBoundingBox](#-getboundingbox) 
-- [getMapImage](#-getmapimage) 
 - [getImage](#-getimage) 
 
 ### ::lngToXTile
@@ -222,28 +221,6 @@ Get the bounding box of the map
 
 
 
----
-### ->getMapImage
-
-Get only the map image.
-
-
-
-
-
-
-
-
-
-#### Return Value:
-
- **\DantSu\PHPImageEditor\Image** : An instance of DantSu\PHPImageEditor\Image
-
-
-#### See Also:
-
-* https://github.com/DantSu/php-image-editor - See more about DantSu\PHPImageEditor\Image
-
 ---
 ### ->getImage
 
@@ -270,4 +247,4 @@ Get the map image with markers and lines.
 
 
 ---
-> Automatically generated from source code comments on 2021-09-08 using [phpDocumentor](http://www.phpdoc.org/)
+> Automatically generated from source code comments on 2021-09-09 using [phpDocumentor](http://www.phpdoc.org/)

docs/classes/DantSu/OpenStreetMapStaticAPI/XY.md

@@ -82,4 +82,4 @@ Get Y
 
 
 ---
-> Automatically generated from source code comments on 2021-09-08 using [phpDocumentor](http://www.phpdoc.org/)
+> Automatically generated from source code comments on 2021-09-09 using [phpDocumentor](http://www.phpdoc.org/)

docs/index.md

@@ -24,4 +24,4 @@ This is an automatically generated documentation for **PHP OpenStreetMap Static
 
 
 ---
-> Automatically generated from source code comments on 2021-09-08 using [phpDocumentor](http://www.phpdoc.org/)
+> Automatically generated from source code comments on 2021-09-09 using [phpDocumentor](http://www.phpdoc.org/)

src/OpenStreetMap.php

@@ -138,7 +138,7 @@ public function getBoundingBox(): BoundingBox
      * @see https://github.com/DantSu/php-image-editor See more about DantSu\PHPImageEditor\Image
      * @return Image An instance of DantSu\PHPImageEditor\Image
      */
-    public function getMapImage(): Image
+    protected function getMapImage(): Image
     {
         $bbox = $this->boundingBox;
         $xTile = static::lngToXTile($bbox->getBottomLeft()->getLng(), $this->zoom);
@@ -164,6 +164,35 @@ public function getMapImage(): Image
         return $image;
     }
 
+    /**
+     * Draw OpenStreetMap attribution at the right bottom of the image
+     * @param Image $image The image of the map
+     * @return Image The image of the map with attribution
+     */
+    protected function drawAttribution(Image $image): Image
+    {
+        $margin = 5;
+        $attribution = function (Image $image, $margin): array {
+            return $image->writeTextAndGetBoundingBox(
+                '© OpenStreetMap contributors',
+                __DIR__ . '/resources/font.ttf',
+                10,
+                '0078A8',
+                $margin,
+                $margin,
+                Image::ALIGN_LEFT,
+                Image::ALIGN_TOP
+            );
+        };
+
+        $bbox = $attribution(Image::newCanvas(1, 1), $margin);
+        $imageAttribution = Image::newCanvas($bbox['bottom-right']['x'] + $margin, $bbox['bottom-right']['y'] + $margin);
+        $imageAttribution->drawRectangle(0, 0, $imageAttribution->getWidth(), $imageAttribution->getHeight(), 'FFFFFF33');
+        $attribution($imageAttribution, $margin);
+
+        return $image->pasteOn($imageAttribution, Image::ALIGN_RIGHT, Image::ALIGN_BOTTOM);
+    }
+
     /**
      * Get the map image with markers and lines.
      *
@@ -182,6 +211,6 @@ public function getImage(): Image
             $markers->draw($image, $this->boundingBox);
         }
 
-        return $image;
+        return $this->drawAttribution($image);
     }
 }