Almost working c++ status bar

Signed-off-by: tamasmeszaros <meszaros.q@gmail.com>

xs/src/slic3r/GUI/ProgressStatusBar.hpp

@@ -0,0 +1,61 @@
+#ifndef PROGRESSSTATUSBAR_HPP
+#define PROGRESSSTATUSBAR_HPP
+
+#include <memory>
+#include <functional>
+
+class wxTimer;
+class wxGauge;
+class wxButton;
+class wxTimerEvent;
+class wxStatusBar;
+class wxWindow;
+
+namespace Slic3r {
+
+/**
+ * @brief The ProgressStatusBar class is the widgets occupying the lower area
+ * of the Slicer main window. It consists of a message area to the left and a
+ * progress indication area to the right with an optional cancel button.
+ */
+class ProgressStatusBar {
+    wxStatusBar *self;      // we cheat! It should be the base class but: perl!
+    wxTimer *timer_;
+    wxGauge *prog_;
+    wxButton *cancelbutton_;
+public:
+
+    /// Cancel callback function type
+    using CancelFn = std::function<void()>;
+
+    ProgressStatusBar(wxWindow *parent = nullptr, int id = -1);
+    ~ProgressStatusBar();
+
+    int  get_progress() const;
+    void set_progress(int);
+    void set_range(int = 100);
+    void show_progress(bool);
+    void start_busy(int = 100);
+    void stop_busy();
+    inline bool is_busy() const { return busy_; }
+    void set_cancel_callback(CancelFn);
+    void run(int rate);
+
+    // Temporary methods to satisfy Perl side
+    void Embed();
+    void SetStatusText(std::string txt);
+    int  GetId();
+    int  GetProgId();
+
+private:
+    bool busy_ = false;
+    CancelFn cancel_cb_;
+};
+
+namespace GUI {
+    using Slic3r::ProgressStatusBar;
+}
+
+}
+
+#endif // PROGRESSSTATUSBAR_HPP