From 41d81ccd8f85da838b4ba41c7a5d2f55157ef349 Mon Sep 17 00:00:00 2001
From: Matt Keeter <matt.j.keeter@gmail.com>
Date: Fri, 21 Mar 2014 17:30:54 -0400
Subject: [PATCH] Cross-thread lambda functions fail on win32

---
 src/canvas.cpp |  6 ++++++
 src/canvas.h   |  1 +
 src/window.cpp | 18 ++++++++++++++----
 src/window.h   |  3 +++
 4 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/src/canvas.cpp b/src/canvas.cpp
index 4c31c6c..930fd2c 100644
--- a/src/canvas.cpp
+++ b/src/canvas.cpp
@@ -41,6 +41,12 @@ void Canvas::set_status(const QString &s)
     update();
 }
 
+void Canvas::clear_status()
+{
+    status = "";
+    update();
+}
+
 void Canvas::initializeGL()
 {
     mesh_shader.addShaderFromSourceFile(QGLShader::Vertex, ":/gl/mesh.vert");
diff --git a/src/canvas.h b/src/canvas.h
index 6507dca..810c334 100644
--- a/src/canvas.h
+++ b/src/canvas.h
@@ -23,6 +23,7 @@ public:
 
 public slots:
     void set_status(const QString& s);
+    void clear_status();
     void load_mesh(Mesh* m);
 
 
diff --git a/src/window.cpp b/src/window.cpp
index 203fff9..15ffb03 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -69,6 +69,16 @@ void Window::on_about()
         "   style=\"color: #93a1a1;\">matt.j.keeter@gmail.com</a></p>");
 }
 
+void Window::enable_open()
+{
+    open_action->setEnabled(true);
+}
+
+void Window::disable_open()
+{
+    open_action->setEnabled(false);
+}
+
 bool Window::load_stl(const QString& filename)
 {
     if (!open_action->isEnabled())  return false;
@@ -77,7 +87,7 @@ bool Window::load_stl(const QString& filename)
 
     Loader* loader = new Loader(this, filename);
     connect(loader, &Loader::started,
-            [=](){ open_action->setEnabled(false); });
+              this, &Window::disable_open);
 
     connect(loader, &Loader::got_mesh,
             canvas, &Canvas::load_mesh);
@@ -85,14 +95,14 @@ bool Window::load_stl(const QString& filename)
     connect(loader, &Loader::finished,
             loader, &Loader::deleteLater);
     connect(loader, &Loader::finished,
-            [=](){ open_action->setEnabled(true); });
+              this, &Window::enable_open);
     connect(loader, &Loader::finished,
-            [=](){ canvas->set_status(""); });
+            canvas, &Canvas::clear_status);
 
     if (filename[0] != ':')
     {
         connect(loader, &Loader::loaded_file,
-                this, &Window::setWindowTitle);
+                  this, &Window::setWindowTitle);
     }
 
     loader->start();
diff --git a/src/window.h b/src/window.h
index 866e103..22c35cb 100644
--- a/src/window.h
+++ b/src/window.h
@@ -16,6 +16,9 @@ public slots:
     void on_open();
     void on_about();
 
+    void enable_open();
+    void disable_open();
+
 private:
     QAction* const open_action;
     QAction* const about_action;
-- 
2.39.2