refactored mouse input processor, tweaks to mouse input support, fix for diesel engine compressor, added progress bar label

mouseinput.h

@@ -0,0 +1,60 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <unordered_map>
+#include <array>
+#include "command.h"
+
+class mouse_input {
+
+public:
+// constructors
+    mouse_input() { default_bindings(); }
+
+// methods
+    bool
+        init() { return true; }
+    void
+        move( double const Mousex, double const Mousey );
+    void
+        button( int const Button, int const Action );
+    void
+        poll();
+
+private:
+// types
+    struct mouse_commands {
+
+        user_command left;
+        user_command right;
+
+        mouse_commands( user_command const Left, user_command const Right ):
+                                      left(Left),             right(Right)
+        {}
+    };
+
+    typedef std::unordered_map<std::string, mouse_commands> controlcommands_map;
+
+// methods
+    void
+        default_bindings();
+
+// members
+    controlcommands_map m_mousecommands;
+    user_command m_mousecommandleft { user_command::none }; // last if any command issued with left mouse button
+    user_command m_mousecommandright { user_command::none }; // last if any command issued with right mouse button
+    command_relay m_relay;
+    double m_updateaccumulator { 0.0 };
+    bool m_pickmodepanning { false }; // indicates mouse is in view panning mode
+    glm::dvec2 m_cursorposition; // stored last mouse position, used for panning
+};
+
+//---------------------------------------------------------------------------