From 5a38a2db976cf17640808317694c2aaa7091fe35 Mon Sep 17 00:00:00 2001
From: Matt Keeter <matt.j.keeter@gmail.com>
Date: Wed, 26 Mar 2014 21:51:58 -0400
Subject: [PATCH] Allow dropping of files onto window

---
 src/window.cpp | 16 ++++++++++++++++
 src/window.h   |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/src/window.cpp b/src/window.cpp
index 2d809bfb..3002ecc8 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -14,6 +14,7 @@ Window::Window(QWidget *parent) :
 
 {
     setWindowTitle("fstl");
+    setAcceptDrops(true);
 
     QFile styleFile(":/qt/style.qss");
     styleFile.open( QFile::ReadOnly );
@@ -128,3 +129,18 @@ bool Window::load_stl(const QString& filename)
     loader->start();
     return true;
 }
+
+void Window::dragEnterEvent(QDragEnterEvent *event)
+{
+    if (event->mimeData()->hasUrls())
+    {
+        auto urls = event->mimeData()->urls();
+        if (urls.size() == 1 && urls.front().path().endsWith(".stl"))
+            event->acceptProposedAction();
+    }
+}
+
+void Window::dropEvent(QDropEvent *event)
+{
+    load_stl(event->mimeData()->urls().front().toLocalFile());
+}
diff --git a/src/window.h b/src/window.h
index 3ac5e956..cb92ebb4 100644
--- a/src/window.h
+++ b/src/window.h
@@ -12,6 +12,10 @@ class Window : public QMainWindow
     explicit Window(QWidget* parent=0);
     bool load_stl(const QString& filename);
 
+protected:
+    void dragEnterEvent(QDragEnterEvent* event);
+    void dropEvent(QDropEvent* event);
+
 public slots:
     void on_open();
     void on_about();