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gl.h

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#ifndef fl_gl_h
#define fl_gl_h


#include "fl/glx.h"

// This header does not directly require keysym.h, but it makes using
// GLShow easier for the developer.
#include <X11/keysym.h>


namespace fl
{
  class GLShow : public GLXWindow
  {
  public:
        GLShow (int width = 400, int height = 400);  // Figure out everything automatically
        ~GLShow ();

        virtual bool processEvent (XEvent & event);

        void waitForClose ();  // Current thread goes to sleep, and returns once this winodw is destroyed.
        void stopWaiting ();  // Releases all threads waiting on this window.  Presumably one of these threads will then destroy this object.

        virtual void initContext ();  // One-time initialization of GL context.
        virtual void reshape (int width, int height);  // Called when window is first constructed and each time its shape changes.
        virtual void display ();  // Called when part of the window needs to be repainted.
        virtual void drag (int toX, int toY, unsigned int state);  // Called during mouse drags.
        virtual void click (int x, int y, unsigned int state);  // Called when mouse button releases w/o intervening drag.
        virtual void keyboard (KeySym keysym);  // Called when a keystroke occurs.


        fl::GLXContext     context;
        bool               contextInitialized;

        Atom               WM_DELETE_WINDOW;
        Atom               WM_PROTOCOLS;  // For some reason, this isn't defined in Xatom.h

        bool               dragMode;
        int                lastX;  // Where the last button event occurred
        int                lastY;

        pthread_mutex_t    waitingMutex;
        pthread_cond_t     waitingCondition;
  };
}


#endif

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