From 15264d0abd2fa7e50b9aa625cef6b72dc744efe2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Malte=20Hu=CC=88bner?= <maltehuebner@gmx.org>
Date: Sun, 11 Feb 2018 18:36:14 +0100
Subject: [PATCH] Try to add shadows.

---
 .../Marker/ExtraMarkerPrinter.php             | 64 ++++++++++++++++++-
 1 file changed, 63 insertions(+), 1 deletion(-)

diff --git a/src/ElementPrinter/Marker/ExtraMarkerPrinter.php b/src/ElementPrinter/Marker/ExtraMarkerPrinter.php
index b4bb2da..decb6e1 100644
--- a/src/ElementPrinter/Marker/ExtraMarkerPrinter.php
+++ b/src/ElementPrinter/Marker/ExtraMarkerPrinter.php
@@ -5,7 +5,6 @@ namespace StaticMapLite\ElementPrinter\Marker;
 use StaticMapLite\Canvas\Canvas;
 use StaticMapLite\Element\Marker\AbstractMarker;
 use StaticMapLite\Element\Marker\ExtraMarker;
-use StaticMapLite\Element\Marker\Marker;
 use StaticMapLite\Util;
 
 class ExtraMarkerPrinter
@@ -19,6 +18,12 @@ class ExtraMarkerPrinter
     /** @var int $baseMarkerHeight */
     protected $baseMarkerHeight = 92;
 
+    /** @var int $baseShadowWidth */
+    protected $baseShadowWidth = 21;
+
+    /** @var int $baseShadowHeight */
+    protected $baseShadowHeight = 14;
+
     /** @var float $markerSize */
     protected $markerSize = 0.75;
 
@@ -42,6 +47,14 @@ class ExtraMarkerPrinter
     }
 
     public function paint(Canvas $canvas): ExtraMarkerPrinter
+    {
+        //$this->paintShadow($canvas); looks like shadows are currently broken, will fix that later
+        $this->paintMarker($canvas);
+
+        return $this;
+    }
+
+    protected function paintMarker(Canvas $canvas): ExtraMarkerPrinter
     {
         $markerImage = $this->createMarker();
 
@@ -112,4 +125,53 @@ class ExtraMarkerPrinter
         $white = imagecolorallocate($markerImage, 255, 255, 255);
         imagettftext($markerImage, $fontSize, 0, $x, $y, $white, $fontFile, $text);
     }
+
+    protected function paintShadow(Canvas $canvas): ExtraMarkerPrinter
+    {
+        $shadowImage = $this->createShadow();
+
+        $destX = floor(($canvas->getWidth() / 2) - $canvas->getTileSize() * ($canvas->getCenterX() - Util::lonToTile($this->marker->getLongitude(), $canvas->getZoom())));
+        $destY = floor(($canvas->getHeight() / 2) - $canvas->getTileSize() * ($canvas->getCenterY() - Util::latToTile($this->marker->getLatitude(), $canvas->getZoom())));
+
+        $destX -= $this->baseShadowWidth * $this->markerSize;
+        $destY -= $this->baseShadowHeight;
+
+        imagecopyresampled(
+            $canvas->getImage(),
+            $shadowImage,
+            $destX,
+            $destY,
+            0,
+            0,
+            $this->baseShadowWidth,
+            $this->baseShadowHeight,
+            $this->baseShadowWidth,
+            $this->baseShadowHeight
+        );
+
+        return $this;
+    }
+
+    protected function createShadow()
+    {
+        $shadowImgUrl = __DIR__.'/../../../images/marker_shadow.png';
+        $shadow = imagecreatefrompng($shadowImgUrl);
+
+        $shadowImage = imagecreatetruecolor(21, 14);
+        $transparentColor = imagecolorallocatealpha($shadowImage, 255, 255, 255, 0);
+        imagefill($shadowImage, 0, 0, $transparentColor);
+
+        imagecopy(
+            $shadow,
+            $shadowImage,
+            0,
+            0,
+            0,
+            0,
+            $this->baseShadowWidth,
+            $this->baseShadowHeight
+        );
+
+        return $shadowImage;
+    }
 }